UnsupportedOperationException using AM_sdk
I am trying to integrate an application to decode the iPlanetDirectoryPro cookie so that I can find out which user has be authenticated.
Currently this application has two parts, a perl part which is the general user interface, and a Java - EJB part which ends up being the administration panels. The perl part runs on port 83 under the Sun Web server and uses a policy agent to control auth and auth. The Admin part runs on port 9999 under a Jboss with embedded Tomcat container. The perl part has an embedded link to the admin part. When clicking on this link I need the Java part to be able to decode the iPlanetPro cookie so that I can extract a Remote_User.
Right now I have done the following to try to get this to work.
I have added all the jars for the am_sdk to the classpath.
I have added -Djava.security.policy=/var/opt/SUNWappserver7/domains/domain1/server2/config/server.policy -Djava.endorsed.dirs=/opt/SUNWam/lib/endorsed to the JVM invocation
See the JBoss Environment info below.
JBoss Bootstrap Environment
JBOSS_HOME: /usr/local/jboss-3.2.2RC4
JAVA_OPTS: -server -Dprogram.name=run.sh -Djava.security.policy=/var/opt/SUNWappserver7/domains/domain1/server2/config/server.policy -Djava.endorsed.dirs=/opt/SUNWam/lib/endorsed
CLASSPATH: /usr/local/jboss-3.2.2RC4/bin/run.jar:/lib/tools.jar:/opt/SUNWam/lib/US_export_policy.jar
:/opt/SUNWam/lib/acmecrypt.jar:/opt/SUNWam/lib/activation.jar
:/opt/SUNWam/lib/am_logging.jar:/opt/SUNWam/lib/am_sdk.jar
:/opt/SUNWam/lib/am_services.jar:/opt/SUNWam/lib/am_sso_provider.jar:/opt/SUNWam/lib/commons-logging.jar
:/opt/SUNWam/lib/dom.jar:/opt/SUNWam/lib/iaik_ssl.jar:/opt/SUNWam/lib/jaas.jar:/opt/SUNWam/lib/jakarta-log4j-1.2.6.jar
:/opt/SUNWam/lib/jax-qname.jar:/opt/SUNWam/lib/jaxb-api.jar:/opt/SUNWam/lib/jaxb-impl.jar
:/opt/SUNWam/lib/jaxb-libs.jar:/opt/SUNWam/lib/jaxb-xjc.jar:/opt/SUNWam/lib/jaxm-api.jar:/opt/SUNWam/lib/jaxm-runtime.jar
:/opt/SUNWam/lib/jaxp-api.jar:/opt/SUNWam/lib/jaxrpc-api.jar:/opt/SUNWam/lib/jaxrpc-impl.jar:/opt/SUNWam/lib/jaxrpc-spi.jar
:/opt/SUNWam/lib/jce1_2_1.jar:/opt/SUNWam/lib/jdk_logging.jar:/opt/SUNWam/lib/jsse.jar:/opt/SUNWam/lib/local_policy.jar
:/opt/SUNWam/lib/mail.jar:/opt/SUNWam/lib/mobile_identity.jar:/opt/SUNWam/lib/namespace.jar:/opt/SUNWam/lib/relaxngDatatype.jar
:/opt/SUNWam/lib/saaj-api.jar:/opt/SUNWam/lib/saaj-impl.jar:/opt/SUNWam/lib/sax.jar:/opt/SUNWam/lib/servlet.jar
:/opt/SUNWam/lib/sunjce_provider.jar:/opt/SUNWam/lib/swec.jar:/opt/SUNWam/lib/xalan.jar:/opt/SUNWam/lib/xercesImpl.jar
:/opt/SUNWam/lib/xmlsec.jar:/opt/SUNWam/lib/xsdlib.jar:/opt/SUNWam/lib/xsltc.jar:/opt/SUNWam/lib:/opt/SUNWam/locale
When I run the code to decode the cookie I get the following error.
16:04:02,408 INFO [STDOUT] Auth Exception: AmAuth Exception, UnsupportedOperationException, null
Here is the code I am running
protected boolean Init (HttpServletRequest request,HttpServletResponse response)
throws Exception
boolean rc = true;
// get http(s) header information
authType = request.getAuthType();
contentPath = request.getContextPath();
headerNames = request.getHeaderNames();
method = request.getMethod();
pathInfo = request.getPathInfo();
pathTranslated = request.getPathTranslated();
queryString = request.getQueryString();
remoteUser = request.getRemoteUser();
requestedSessionId = request.getRequestedSessionId();
requestUri = request.getRequestURI();
requestUrl = request.getRequestURL();
servletPath = request.getServletPath();
userPrincipal = request.getUserPrincipal();
isSessionFromCookie = request.isRequestedSessionIdFromCookie();
isRequestedSessionIdFromURL = request.isRequestedSessionIdFromURL();
isRequestedSessionIdValid = request.isRequestedSessionIdValid();
try
// CREATE SSO TOKEN FROM HTTP(S) REQUEST
System.out.println("In AmAuth");
if ( (userSSOTokenManager = SSOTokenManager.getInstance()) != null )
System.out.println("getInstance()");
error --> if ( (userSSOToken = userSSOTokenManager.createSSOToken(request)) != null )
System.out.println("createSSOToken()");
if ( ! userSSOTokenManager.isValidToken(userSSOToken) )
System.out.println("isValidToken()");
rc = false;
throw new Exception ("SSOToken is not valid!!!");
This code blows up with an UnsupportedOperationException.
(from javadocs)
createSSOToken
public SSOToken createSSOToken(javax.servlet.http.HttpServletRequest request)
throws java.lang.UnsupportedOperationException,
SSOException
Creates a single sign on token from HttpServletRequest
Parameters:
request - The HttpServletRequest object which contains the session string.
Returns:
single sign on token
Throws:
SSOException - if the single sign on token cannot be created.
java.lang.UnsupportedOperationException - if this is an unsupported operation.
Can anyone shed some light on what causes an UnsupportedOperationException? I would imagine the sever.policy file would do some of this but I think I have those settings correct.
Since it is not a NoClassDefFound error I know my classpath is correct. The only thing I can think of is there is some configuration that the am_sdk needs that I am not providing.
Thanks
Michael
Michael, I don't know how's your Jboss perl+java code
interact with WS which has included web agent.
However, this isn't what our agent SDK intend to use
redirect iPlanetProCookie or SSO token from agent to
another web application for interpretation and
utilization.
From your orginal exception, it happened under
userSSOTokenManager.createSSOToken(request) which
drove from http request to get your own token under
jboss environment. Is it right assumption?
Yes this is correct. I would like to use this jar file to extract the RemoteUser value for this request and pass it on to the jboss side of the application.
It threw
"java.lang.UnsupportedOperationException" which I
don't have more trace to know the detail.
This is my exact assessment as well. It gives my no idea why it is unsupported.
Any how,
why you write your own Jboss agent using our AM agent
tool kit and control whole thing yourself.
Really?.. Is this the same as creating a "policy agent" for Jboss? What kind of effort is involved?
This
mixing model doesn't seem quite clean and hard to
isolute problem.
I absolutely understand that the mixing model is problematic, however, it is the nature of this beast.
Jerry
Similar Messages
-
A suggestion : use "loop array list" instead of ArrayList / LinkedList
ArrayList is good at:
get / set by index : O(1)
appending : O(log(n))
remove last : O(1)
and very bad at:
add middle : O(n)
remove from middle : O(n)
LinkedList is good at:
fast remove from middle, if your iteraror already goes there : O(1)
convenient methods : addFirst, addLast, removeFirst, removeLast : O(1)
and very bad at :
get / set by index : O(n)
here I want to make a suggestion : use "loop array list" instead of the ArrayList and LinkedList.
a "loop array list" is based on array, just like ArrayList. But it has 2 member-variables : the start position, and the real size. the start position can be anywhere within array.length. an element of index "i" is stored in array[ start + i ], and when (start + i > array.length), loop to the beginning of the array; when (start + i < 0), loop to the end of the array.
this "loop array list" has all the good sides:
get / set by index : O(1)
add first / last : O(log(n))
remove first / last : O(log(n))
add / remove from middle : O(n)
(note : because we shrink the backup-array when the real size is too small, add / remove operation take O(log(n)) now.)
the only problem is : add / remove from middle. let's take a look at it.
1. the LinkedList does NOT really add/remove from middle in O(1), you has to locate the element, which is O(n).
2. O(n) is acceptable, O(n^2) is not acceptable. try this : keep removing first element from an very big ArrayList ( size>10^6 ) until it's empty.
the fact is, any list can perform batch-remove / batch-add operation in O(n) instead of O(n^2). it's easy : allocate a new list, iterate the original list, copy the element into the new list if condition is satisfied.
so, instead of "remove from middle", what we need is a new methods : removeAllByCondition( Condition condition ), and now the batch-remove operation can be done in O(n)
here is an implementation of mine. I've tested it on my computer( 512mem + 2G cpu, win2k + jdk1.5 ), it's amazing, just a little slower then ArrayList when add last, and a liitle slower then LinkedList when batch-remove. in all other cases, it's far more better then those 2 kinds of List.
// source code : List2
import java.util.AbstractList;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Set;
public final class List2<T> extends AbstractList<T> {
private static int initialArrayLength = 4;
private T[] array;
private int start;
private int size;
private void init( T[] newArray, int start_a, int size_a ) {
array = newArray;
start = start_a;
size = size_a;
@SuppressWarnings("unchecked")
private void init() {
init( (T[]) new Object[ initialArrayLength ], 0, 0 );
public List2() {
init();
@SuppressWarnings("unchecked")
public List2( Collection<? extends T> collection ) {
init(
collection.toArray( (T[]) new Object[ collection.size() * 11 / 10 + 1 ] ),
0,
collection.size()
private List2( T[] array_a, int start_a, int size_a ) {
init( array_a, start_a, size_a );
@SuppressWarnings("unchecked")
public static <TT> List2<TT> createV( TT... elements ) {
TT[] array = (TT[]) new Object[ elements.length * 11 / 10 + 1 ];
System.arraycopy( elements, 0, array, 0, elements.length );
return new List2<TT>( array, 0, elements.length );
public static List2<Double> create( double... elements ) {
Double[] array = new Double[ elements.length * 11 / 10 + 1 ];
for( int i=0; i < elements.length; i++ )
array[i] = elements;
return new List2<Double>( array, 0, elements.length );
public static List2<Integer> create( int... elements ) {
Integer[] array2 = new Integer[ elements.length * 11 / 10 + 1 ];
for( int i=0; i < elements.length; i++ )
array2[i] = elements[i];
return new List2<Integer>( array2, 0, elements.length );
public static List2<Character> create( char... elements ) {
Character[] array2 = new Character[ elements.length * 11 / 10 + 1 ];
for( int i=0; i < elements.length; i++ )
array2[i] = elements[i];
return new List2<Character>( array2, 0, elements.length );
public static List2<Character> create( String s ) {
return create( s.toCharArray() );
public List2<T> clone() {
return new List2<T>( this );
// basic
public int size() {
return size;
private int index( int index ) {
int i = start + index;
if( i >= array.length )
i -= array.length;
return i;
public T get( int d ) {
if( d < 0 || d >= size )
throw new IndexOutOfBoundsException();
if( size == 0 )
throw new NoSuchElementException();
return array[ index( d ) ];
public T set( int index, T element ) {
if( index < 0 || index >= size )
throw new IndexOutOfBoundsException();
int i = index( index );
T oldElement = array[i];
array[i] = element;
return oldElement;
@SuppressWarnings("unchecked")
private void copyAndSetToNewArray( int newArrayLength ) {
T[] newArray = (T[]) new Object[ newArrayLength ];
for( int i=0; i<size; i++ )
newArray[i] = array[ index( i ) ];
init( newArray, 0, size );
public void addFirst( T element ) {
if( size == array.length )
copyAndSetToNewArray( size * 3 / 2 + 1 );
int i = index( array.length - 1 );
array[ i ] = element;
start = i;
size++;
public void addLast( T element ) {
if( size == array.length )
copyAndSetToNewArray( size * 3 / 2 + 1 );
array[ index( size ) ] = element;
size++;
public T removeFirst() {
if( size == 0 )
throw new NoSuchElementException();
T oldElement = array[ start ];
array[ start ] = null;
start = index( 1 );
size--;
if( array.length > size * 2 + 1 )
copyAndSetToNewArray( size * 11 / 10 + 1 );
return oldElement;
public T removeLast() {
if( size == 0 )
throw new NoSuchElementException();
int i = index( size - 1 );
T oldElement = array[i];
array[i] = null;
size--;
if( array.length > size * 2 + 1 )
copyAndSetToNewArray( size * 11 / 10 + 1 );
return oldElement;
@SuppressWarnings("unchecked")
public int removeAll( ListCondition<T> condition ) {
T[] newArray = (T[]) new Object[ array.length ];
int iNew = 0;
for( int i=0; i < size; i++ ) {
T element = get( i );
if( ! condition.isConditionSatisfied( this, i, element ) )
newArray[ iNew++ ] = element;
int oldSize = size;
init( newArray, 0, iNew );
if( array.length > size * 2 + 1 )
copyAndSetToNewArray( size * 11 / 10 + 1 );
return size - oldSize;
// aux
public boolean equals(Object obj) {
if( obj == this )
return true;
if( obj instanceof List2 ) {
List2 that = (List2) obj;
if( this.size != that.size )
return false;
for( int i=0; i < size; i++ )
if( ! Tools.equals( this.array[ this.index(i) ], that.array[ that.index(i) ] ) )
return false;
return true;
if( obj instanceof List ) {
List that = (List) obj;
if( this.size != that.size() )
return false;
Iterator thatIter = that.iterator();
for( int i=0; i < size; i++ )
if( ! Tools.equals( this.array[ this.index(i) ], thatIter.next() ) )
return false;
return true;
return true;
public int hashCode() {
int hashCode = 1;
for( int i=0; i < size; i++ ) {
T element = array[ index( i ) ];
hashCode = 31*hashCode + ( element==null ? 0 : element.hashCode() );
return hashCode;
public boolean isEmpty() {
return size == 0;
public T getFirst() {
return get( 0 );
public T getLast() {
return get( size() - 1 );
public T getRandom() {
return get( (int) (Math.random() * size) );
public int indexOf( Object element ) {
for( int i=0; i < size; i++ )
if( Tools.equals( array[ index( i ) ], element ) )
return i;
return -1;
public int lastIndexOf( Object element ) {
for( int i=size-1; i >= 0; i-- )
if( Tools.equals( array[ index( i ) ], element ) )
return i;
return -1;
public boolean contains( Object element ) {
return indexOf( element ) != -1;
public boolean add( T element ) {
addLast( element );
return true;
@Deprecated
public void add( int index, T element ) {
throw new UnsupportedOperationException();
public T remove() {
return removeFirst();
@Deprecated
public boolean remove( Object element ) {
throw new UnsupportedOperationException( "use removeAll( Condition ) instead" );
@Deprecated
public T remove( int index ) {
throw new UnsupportedOperationException( "use removeAll( Condition ) instead" );
public void clear() {
init();
public Object[] toArray() {
Object[] result = new Object[ size ];
for( int i=0; i < size; i++ )
result[i] = array[ index( i ) ];
return result;
@SuppressWarnings("unchecked")
public <TT> TT[] toArray( TT[] a ) {
if( a.length < size )
a = (TT[]) java.lang.reflect.Array.newInstance( a.getClass().getComponentType(), size );
for( int i=0; i < size; i++ )
a[i] = (TT) array[ index( i ) ];
if( a.length > size )
a[size] = null;
return a;
@SuppressWarnings("unchecked")
public void sort() {
Object[] a = toArray();
Arrays.sort( a );
for( int i=0; i < size; i++ )
array[ i ] = (T) a[ i ];
start = 0;
@SuppressWarnings("unchecked")
public void sortDesc() {
Object[] a = toArray();
Arrays.sort( a );
for( int i=0, j=size-1; i < size; i++, j-- )
array[ i ] = (T) a[ j ];
start = 0;
@SuppressWarnings("unchecked")
public void sort( Comparator<T> comparator ) {
T[] a = (T[]) toArray();
Arrays.sort( a, comparator );
for( int i=0; i < size; i++ )
array[ i ] = a[ i ];
start = 0;
@SuppressWarnings("unchecked")
public void sortDesc( Comparator<T> comparator ) {
T[] a = (T[]) toArray();
Arrays.sort( a, comparator );
for( int i=0, j=size-1; i < size; i++, j-- )
array[ i ] = a[ j ];
start = 0;
public String toString( String delimiter ) {
return toString( "", delimiter, "", size() );
public String toString( String prefix, String delimiter, String suffix, int max ) {
StringBuffer stringBuffer = new StringBuffer( prefix );
int dest = Math.min( max, size );
for( int i=0; i < dest; i++ ) {
stringBuffer.append( get(i) );
if( i < dest - 1 )
stringBuffer.append( delimiter );
if( size > max )
stringBuffer.append( "...(" ).append( size() - max ).append( " more)" );
stringBuffer.append( suffix );
return stringBuffer.toString();
// batch operation
public boolean containsAll( Collection<?> that ) {
Set<Object> thisSet = new HashSet<Object>( this );
for( Object element : that )
if( ! thisSet.contains( element ) )
return false;
return true;
@SuppressWarnings("unchecked")
public List2<T> subList( int fromIndex, int toIndex ) {
if( fromIndex < 0 || toIndex > size || toIndex < fromIndex )
throw new IndexOutOfBoundsException();
int newSize = toIndex - fromIndex;
T[] newArray = (T[]) new Object[ newSize * 11 / 10 + 1 ];
for( int i=fromIndex, iNew=0; i < toIndex; i++, iNew++ )
newArray[ iNew ] = array[ index( i ) ];
return new List2<T>( newArray, 0, newSize );
public void addV( T... that ) {
for( T element : that )
addLast( element );
public boolean addAll( Collection<? extends T> that ) {
for( T element : that )
addLast( element );
return ! that.isEmpty();
@Deprecated
public boolean addAll( int index, Collection<? extends T> c ) {
throw new UnsupportedOperationException();
public void removeRest( T element ) {
int position = lastIndexOf( element );
if( position == -1 )
return;
while( ! Tools.equals( element, removeLast() ) );
public void removeAllEquals( final T element ) {
removeAll( new ListCondition<T>() { public boolean isConditionSatisfied(List2 list, int index, T currentElement) {
return currentElement.equals( element );
public void removeAllBetween( final T from, final T to ) {
removeAll( new ListCondition<T>() {
@SuppressWarnings("unchecked")
public boolean isConditionSatisfied(List2 list, int index, T element) {
if( from != null && ((Comparable) from).compareTo( element ) > 0 )
return false;
if( to != null && ((Comparable) to).compareTo( element ) <= 0 )
return false;
return true;
public boolean retainAll( Collection<?> that ) {
final Set<Object> thatSet = new HashSet<Object>( that );
int removeCount = removeAll( new ListCondition<T>() { public boolean isConditionSatisfied(List2 list, int index, T element) {
return ! thatSet.contains( element );
return removeCount > 0;
public boolean removeAll( Collection<?> that ) {
final Set<Object> thatSet = new HashSet<Object>( that );
int removeCount = removeAll( new ListCondition<T>() { public boolean isConditionSatisfied(List2 list, int index, T element) {
return thatSet.contains( element );
return removeCount > 0;
// unit test
private static int maxTestCount = 1000 * 1000;
public static void unitTest() throws Exception {
// thest thoese methods for one time
Tools.ensureEquals( new List2(), new ArrayList() );
Tools.ensureNotEquals( List2.create( "abcde" ), new ArrayList() );
Tools.ensureNotEquals( List2.create( "abcde" ), List2.create( "abcdef" ) );
final List<Double> list1 = new ArrayList<Double>();
final List2<Double> list2 = new List2<Double>();
Runnable[] tasks = new Runnable[] {
// test those methods that do NOT change the list
new Runnable() { public void run() {
Tools.ensureEquals( new List2<Double>( list1 ), list1 );
Tools.ensureEquals( List2.createV( list1.toArray() ), list1 );
Tools.ensureEquals( List2.createV( list1.toArray( new Double[0] ) ), list1 );
double[] doubles = new double[ list1.size() ];
int i = 0;
for( double d : list1 )
doubles[i++] = d;
Tools.ensureEquals( List2.create( doubles ), list1 );
Tools.ensure( list1.isEmpty() == list2.isEmpty() );
Arrays.equals( list1.toArray(), list2.toArray() );
Tools.ensureEquals( list1, list2.clone() );
Double notExistElement = -2.0;
Tools.ensure( list1.indexOf( notExistElement ) == -1 );
Tools.ensure( list1.lastIndexOf( notExistElement ) == -1 );
Tools.ensure( list1.contains( notExistElement ) == false );
Tools.ensureEquals( list1.toString(), list2.toString() );
Tools.ensureEquals( list1.toString(), list2.toString() );
Tools.ensureEquals( list1.hashCode(), list2.hashCode() );
if( list1.isEmpty() )
return;
Tools.ensure( list1.get(0).equals( list2.getFirst() ) );
Tools.ensure( list1.get(list1.size()-1).equals( list2.getLast() ) );
Double existRandomElement = list2.getRandom();
Tools.ensure( list1.contains( existRandomElement ) );
Tools.ensure( list2.contains( existRandomElement ) );
Tools.ensure( list1.indexOf( existRandomElement ) == list2.indexOf( existRandomElement ) );
Tools.ensure( list1.indexOf( existRandomElement ) == list2.indexOf( existRandomElement ) );
int from = (int) (Math.random() * list1.size());
int to = (int) (Math.random() * (list1.size()+1));
if( from > to ) {
int t = from;
from = to;
to = t;
Tools.ensureEquals( list1.subList( from, to ), list2.subList( from, to ) );
// test those methods that change the list
new Runnable() { public void run() {
if( list1.isEmpty() )
return;
int i = (int) (Math.random() * list1.size());
double d = Math.random();
list1.set( i, d );
list2.set( i, d );
new Runnable() { public void run() {
if( list1.isEmpty() )
return;
int i = (int) (Math.random() * list1.size());
Tools.ensure( list1.get( i ).equals( list2.get( i ) ) );
new Runnable() { public void run() {
double d = Math.random();
list1.add( 0, d );
list2.addFirst( d );
new Runnable() { public void run() {
double d = Math.random();
list1.add( d );
list2.addLast( d );
new Runnable() { public void run() {
double d = Math.random();
list1.add( d );
list2.addLast( d );
new Runnable() { public void run() {
if( list1.isEmpty() )
return;
Tools.ensure( list1.remove( 0 ).equals( list2.removeFirst() ) );
new Runnable() { public void run() {
if( list1.isEmpty() )
return;
Tools.ensure( list1.remove( list1.size() - 1 ).equals( list2.removeLast() ) );
new Runnable() { public void run() {
if( list1.isEmpty() )
return;
int i = 0;
for( Iterator<Double> iter=list1.iterator(); iter.hasNext(); i++ ) {
iter.next();
if( i % 3 == 0 )
iter.remove();
list2.removeAll( new ListCondition<Double>() { public boolean isConditionSatisfied(List2 list, int index, Double element) {
return index % 3 == 0;
new Runnable() { public void run() {
double d = Math.random();
list1.add( d );
list2.add( d );
new Runnable() { public void run() {
if( list1.isEmpty() )
return;
Tools.ensure( list1.remove(0).equals( list2.remove() ) );
new Runnable() { public void run() {
if( list1.isEmpty() )
return;
int r = (int) (Math.random() * list1.size());
Double element = list1.get( r );
int index = list1.lastIndexOf( element );
for( int i=list1.size()-1; i>=index; i-- )
list1.remove( i );
list2.removeRest( element );
new Runnable() { public void run() {
list2.removeRest( Math.random() - 2 );
new Runnable() { public void run() {
list1.clear();
list2.clear();
new Runnable() { public void run() {
Collections.sort( list1 );
list2.sort();
new Runnable() { public void run() {
Collections.sort( list1 );
Collections.reverse( list1 );
list2.sortDesc();
new Runnable() { public void run() {
Comparator<Double> comparator = new Comparator<Double>() { public int compare(Double o1, Double o2) {
return o1.toString().substring(2).compareTo( o2.toString().substring(2) );
Collections.sort( list1, comparator );
list2.sort( comparator );
new Runnable() { public void run() {
Comparator<Double> comparator = new Comparator<Double>() { public int compare(Double o1, Double o2) {
return o1.toString().substring(2).compareTo( o2.toString().substring(2) );
Collections.sort( list1, comparator );
Collections.reverse( list1 );
list2.sortDesc( comparator );
new Runnable() { public void run() {
Double notExistElement = -2.0;
list2.removeAllEquals( notExistElement );
Tools.ensureEquals( list1, list2 );
list2.removeAllBetween( 0.5, 0.6 );
for( Iterator<Double> iter=list1.iterator(); iter.hasNext(); ) {
double d = iter.next();
if( d >= 0.5 && d < 0.6 )
iter.remove();
Tools.ensureEquals( list1, list2 );
System.out.print( "test List2 " );
for( int i=0; i < maxTestCount; i++ ) {
tasks[ (int) (Math.random() * tasks.length) ].run();
Tools.ensureEquals( list1, list2 );
if( i % (maxTestCount/10) == 0 )
System.out.print( "." );
System.out.println( " ok" );
// source code : ListCondition
public interface ListCondition<T> {
boolean isConditionSatisfied( List2 list, int index, T element );Hi,
I have the following statement:
private List list = new ArrayList();
why not use private ArrayList list = new
ArrayList()?
I know ArrayList implements List, so list has a wide
scope, right? What's the benefit?
Thanks,
JieBy using the interface you are not tied to a specific implementation.
Later, you may determine that using a LinkedList is more efficient to your specific code and then all you need to do is change the statement to:
private List list = new LinkedList();As long as you are not casting the list reference to ArrayList (or something along those lines) you would not need to change anything else. -
UnsupportedOperationException when using getBytes()
I came across a weird situation lately. I have the following statement in my code:
try {
page = doc.getText().getBytes(doc.getContent().getCharset());
} catch (UnsupportedEncodingException e) {
LOG.warn("Unsupported encoding exception, page text will be empty");
However, while executing the code, I got a weird stack trace, here's the important part of it:
Caused by: java.lang.UnsupportedOperationException
at sun.nio.cs.ext.ISO2022_CN.newEncoder(ISO2022_CN.java:64)
at java.lang.StringCoding$StringEncoder.<init>(StringCoding.java:215)
at java.lang.StringCoding$StringEncoder.<init>(StringCoding.java:207)
at java.lang.StringCoding.encode(StringCoding.java:266)
at java.lang.String.getBytes(String.java:946)
This trace points to the exact line inside the try/catch block. However, it seems that Java is throwing an UnsupportedOperationException instead of the UnsupportedEncodingException. Is this the normal behaviour? Has anyone else ever encouter a similar problem?
Thanks a lot,
GabrielI Googled the name ISO2022_CN.java (the class where the exception was thrown).
http://www.docjar.com/html/api/sun/nio/cs/ext/ISO2022_CN.java.html
The "newEncoder()" method always throws the stated exception.
The Javadoc for Charset (ISO2022_CN extends Charset) says newEncoder() is allowed to throw this exception:
http://download.oracle.com/javase/6/docs/api/java/nio/charset/Charset.html#newEncoder()
The OP might be able to use "canEncode()" to avoid the exception--only call newEncoder() if canEncode() returns true:
http://download.oracle.com/javase/6/docs/api/java/nio/charset/Charset.html#canEncode()
The source code from the first link shows that canEncode() will return false for the ISO2022CN Charset.
The OP isn't currently calling newEncoder() directly, so he might have to find a way to get the Charset and call canEncode(). Otherwise, he should catch the UnsupportedOperationException to handle this and other Charset that throw that exception from newEncoder(). Charset has a static "forName(String)" method that might help the OP--for example, pass the String name of the Charset to that, get the corresponding Charset, and see what canEncode() returns. (I didn't try it.) -
UnsupportedOperationException when using off-heap cache
Hi,
When using put and/or putAll i get an UnsupportedOperationException when using an off-heap scheme in front of a
cache store class implementation we have. It works fine for all but off-heap schemes I think.
Any one else ran into this ?
Here is my config:
<caching-schemes>
<external-scheme>
<scheme-name>off-heap-scheme</scheme-name>
<nio-memory-manager>
<initial-size>100M</initial-size>
<maximum-size>10G</maximum-size>
</nio-memory-manager>
</external-scheme>
<distributed-scheme>
<scheme-name>off-heap-cache</scheme-name>
<service-name>OffHeapDistributedCache</service-name>
<thread-count>20</thread-count>
<local-storage>true</local-storage>
<partition-count>1009</partition-count>
<backup-count>1</backup-count>
<backup-count-after-writebehind>0</backup-count-after-writebehind>
<backup-storage>
<type>scheme</type>
<scheme-name>off-heap-scheme</scheme-name>
</backup-storage>
<backing-map-scheme>
<partitioned>false</partitioned>
<read-write-backing-map-scheme>
<internal-cache-scheme>
<external-scheme>
<scheme-ref>off-heap-scheme</scheme-ref>
</external-scheme>
</internal-cache-scheme>
<write-max-batch-size>128</write-max-batch-size>
<cachestore-scheme>
<class-scheme>
<class-name>my.PersistentCacheStoreFacade</class-name>
<init-params>
<init-param>
<param-type>java.lang.String</param-type>
<param-value>{cache-name}</param-value>
</init-param>
</init-params>
</class-scheme>
</cachestore-scheme>
<write-delay>5000ms</write-delay>
<write-batch-factor>0.1</write-batch-factor>
</read-write-backing-map-scheme>
</backing-map-scheme>
<autostart>true</autostart>
</distributed-scheme>
</caching-schemes>
/NiklasHi,
Just wanted to report back on some other findings.
I'm not sure why, but I actually ran into what you just talked about. Again.
I found this forum post about the exact same issue:
Unexpected effects of <partitioned> option for external backing map
(Note that the order of some elements in this shouldn't be allowed according to a strict xsd check)
I also added configuration for <write-max-batch-size>, <write-delay> and <write-batch-factor>.
That improved writing a lot.
My final config now looks something like this:
<read-write-backing-map-scheme>
<internal-cache-scheme>
<external-scheme>
<nio-memory-manager/>
*<high-units>1000000</high-units>*
*<unit-calculator>BINARY</unit-calculator>*
*<unit-factor>1048576</unit-factor>*
</external-scheme>
</internal-cache-scheme>
<write-max-batch-size>128</write-max-batch-size>
<cachestore-scheme>
<class-scheme>
<class-name>my.stuff.PersistentCacheStoreFacade</class-name>
<init-params>
<init-param>
<param-type>java.lang.String</param-type>
<param-value>{cache-name}</param-value>
</init-param>
</init-params>
</class-scheme>
</cachestore-scheme>
<write-delay>5000ms</write-delay>
<write-batch-factor>0.1</write-batch-factor>
</read-write-backing-map-scheme> -
Why UnsupportedOperationException after byte code instrumentation using ASM
Hi All,
I am getting an run time exception while trying to profile java class after byte code instrumenation using ASM 3.0.
Error is like :
java.lang.UnsupportedOperationException: This parser does not support specification "null" version "null"
at javax.xml.parsers.SAXParser.getSchema(Unknown Source)
I am trying to add byte code like this. ( I am trying to use a PrintWriter object of my class (Report) to write a Separator ( / ) in a text file and using AdviceAdaptor of ASM 3.0 )
mv.visitFieldInsn(GETSTATIC, "Report", "printWriterObj", "Ljava/io/PrintWriter;");
mv.visitLdcInsn("/");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintWriter", "print","(Ljava/lang/String;)V");
Please help me to resolve this issue.
write me if you need more information on this.Dont someone has a solution, or got a similar problem ?
Thought about it could be a bug in the basic java classes of JDev 10.1.2
but i dont really know...
Have no idea left.
Sebastian -
Anyone how to resize an image using imagereader and imagereadparam?
I want to use imagereaderparam to process the image.
MY code is as follow:
ImageReader reader = _editor.getImageReader();
try
if (reader != null)
int w = reader.getWidth(0);
int h = reader.getHeight(0);
ImageReadParam param = reader.getDefaultReadParam();
//param.setDestination(reader.read(0));
Dimension d = new Dimension(my_width, my_height);
param.setSourceRenderSize(d);
BufferedImage bi = reader.read(0, param);
} catch (Exception e)
e.printStackTrace();
This code just not work , and get an exception
java.lang.UnsupportedOperationException: Can't set source render size!
anyone know how to do that ?
coz i dont want to use getScaledImage...Hi,
Are you just trying to produce a BufferedImage at a smaller size? May I ask why you don't want to use getScaledInstance? I agree with you not to use it. It is slow. Just wondering what your reasons are. If all you need is to take one image and make it a different size, try this:
BufferedImage src = ...
int scale = 0.5f;
int w = (int)(src.getWidth(null) * scale);
int h = (int)(src.getHeight(null) * scale);
// could use TYPE_INT_RGB if there's no alpha in your image
BufferedImage dest = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
Graphics g = dest.getGraphics();
g.drawImage(src, 0, 0, w, h, null);
d.dispose();How does that work for you? It should be pretty quick.
Shannon Hickey (Swing Team) -
Retrieving lookup field values from a main table using MDM JAVA APIs
Hi all,
am trying to retrieve the main table data...., i could able to retrieve all the data except lookup field values..., iam facing some runtime exceptions and i dont know why exactly it is throwing this exception..., i pasted piece of code where exactly the error is and the exception also.
in the below sode i set some result set definitions and passing them to retrieveLimitedRecordsCommand. it is showing some exception at retrieveLimitedRecordsCommand.execute(); command.
//*** Code ***//
supportingMainResultDefinitions = new ResultDefinition[] { rdQual ,rdFlat, rdqFlat };
retrieveLimitedRecordsCommand.setResultDefinition(rd);
retrieveLimitedRecordsCommand.setSearch(new Search(tableId));
retrieveLimitedRecordsCommand.setSession(sessionId);
retrieveLimitedRecordsCommand.setSupportingResultDefinitions(supportingMainResultDefinitions);
try {
retrieveLimitedRecordsCommand.execute();
PrintRecords.toConsole(retrieveLimitedRecordsCommand.getRecords());
} catch (CommandException e) {
e.printStackTrace();
//*** Below is the Exception raised ***//
java.lang.UnsupportedOperationException: Unexpected field type -1
at com.sap.mdm.internal.schema.PropertiesHelper.createField(PropertiesHelper.java:274)
at com.sap.mdm.internal.schema.PropertiesHelper.convertFrom(PropertiesHelper.java:281)
at com.sap.mdm.internal.data.RecordMetadata.<init>(Unknown Source)
at com.sap.mdm.internal.data.RecordsLoader.<init>(Unknown Source)
at com.sap.mdm.internal.data.RecordsLoader.<init>(Unknown Source)
at com.sap.mdm.internal.data.RecordResultSetHelper.convertFrom(Unknown Source)
at com.sap.mdm.data.commands.RetrieveLimitedRecordsCommand.execute(Unknown Source)
at com.sap.mdm.apitutorial.lesson2.RecordsDisplay.getDisplayRecords(RecordsDisplay.java:303)
at org.apache.jsp.Sample_jsp._jspService(Sample_jsp.java:190)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:99)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:362)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:825)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:738)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:526)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:534)
If anyonw worked on this concept..., please provide me the solution
Regards
Praveen kWhich version are you using? Can you please try and narrow down to the offending field? You can do this by limiting the fields you provide to ResultDefinition.
-
How can i put a file into blob(using sun.jdbc.odbc.JdbcOdbcDriver)
Hi
i tried to put a file into blob , but got a problem.....
My environment:windows 2000pro,JBuilder 5.0 enterprise,oracle 8.1.6,(not install oracle jdbc driver )
a part of program(my program is very uglily,if anyone want,later i paste it ba....~_~)
//Statement stmt2=null;
//Resultset rs2;
//opa1 is the blob data
void saveBlobTableToDisk(Connection con) {
try {
stmt2=con.createStatement();
sqlStr2="SELECT * FROM emp3 where id=1004";
rs2=stmt2.executeQuery(sqlStr2);
while (rs2.next()) {
Blob aBlob=rs2.getBlob("opa1");
i got the exception :
" null
java.lang.UnsupportedOperationException
at sun.jdbc.odbc.JdbcOdbcResultSet.getBlob(JdbcOdbcResultSet.java:4174)
at test3.Frame1.saveBlobTableToDisk(Frame1.java:48)
at test3.Frame1.<init>(Frame1.java:26)
at test3.Application1.<init>(Application1.java:5)
at test3.Application1.main(Application1.java:8) "
and the windows pop up a messagebox said that(about) my memory "0x09af007f" could not read, error in javaw.exe .
Later i used (ResultSet)getBinaryStream() to solve it. but getBinaryStream() only return a InputStream,so that i can make blob to a file,but i can't make a file to blob using jdbc.....
I am very stupid that installing sun java, oracle jdbc driver etc....(because i must set a lot of thing such as classpath,java_home etc), Can i only use JBuilder to do that ?
Or i must install oracle jdbc driver ?
Thanks.My guess here is that Sun's JDBC-ODBC bridge doesn't handle the BLOB datatype. Most ODBC drivers don't support that datatype, so I wouldn't expect the bridge to.
Is there a reason that you can't use the Oracle driver?
Justin -
How can i put a file into blob using jdbc !?
Hi
i tried to put a file into blob , but got a problem.....
My environment:windows 2000pro,JBuilder 5.0 enterprise,oracle 8.1.6,(not install oracle jdbc driver )
a part of program(my program is very uglily,if anyone want,later i paste it ba....~_~)
//Statement stmt2=null;
//Resultset rs2;
//opa1 is the blob data
void saveBlobTableToDisk(Connection con) {
try {
stmt2=con.createStatement();
sqlStr2="SELECT * FROM emp3 where id=1004";
rs2=stmt2.executeQuery(sqlStr2);
while (rs2.next()) {
Blob aBlob=rs2.getBlob("opa1");
i got the exception :
" null
java.lang.UnsupportedOperationException
at sun.jdbc.odbc.JdbcOdbcResultSet.getBlob(JdbcOdbcResultSet.java:4174)
at test3.Frame1.saveBlobTableToDisk(Frame1.java:48)
at test3.Frame1.<init>(Frame1.java:26)
at test3.Application1.<init>(Application1.java:5)
at test3.Application1.main(Application1.java:8) "
and the windows pop up a messagebox said that(about) my memory "0x09af007f" could not read, error in javaw.exe .
Later i used (ResultSet)getBinaryStream() to solve it. but getBinaryStream() only return a InputStream,so that i can make blob to a file,but i can't make a file to blob using jdbc.....
I am very stupid that installing sun java, oracle jdbc driver etc....(because i must set a lot of thing such as classpath,java_home etc), Can i only use JBuilder to do that ?
Or i must install oracle jdbc driver ?
Thanks.
D.T.My guess here is that Sun's JDBC-ODBC bridge doesn't handle the BLOB datatype. Most ODBC drivers don't support that datatype, so I wouldn't expect the bridge to.
Is there a reason that you can't use the Oracle driver?
Justin -
Listing File Hierarchy in console using a Tree structure
first off i'm a college student. i'm not that good at java... we got this CA in class and try as i might i just can't get my head around it
i was wondering if someone who know a bit more about java then i do would point me in the right direction, were i'm going wrong in my code
i have to list out sub-files and sub-directorys of a folder (i.e. C:/test) to console using tree structure
like this
startingdir
dir1 //subfolder of startingdir
dir11 //subfolder of dir1
dir111 //subfolder of dir11
dir12 //subfolder of dir1
file1A // document on dir1
dir2 //subfolder of startingdir
Tree.java
import java.util.Iterator;
import java.util.LinkedList;
import java.util.ListIterator;
import java.util.NoSuchElementException;
import java.util.Deque;
public class Tree<E> {
// Each Tree object is an unordered tree whose
// elements are arbitrary objects of type E.
// This tree is represented by a reference to its root node (root), which
// is null if the tree is empty. Each tree node contains a link to its
// parent and a LinkedList of child nodes
private Node root;
//////////// Constructor ////////////
public Tree () {
// Construct a tree, initially empty.
root = null;
//////////// Accessors ////////////
public boolean isEmpty () {
// Return true is and only if this tree is empty.
return (root == null);
public Node root () {
// Return the root node of this tree, or null if this tree is empty.
return root;
public Node parent (Node node) {
// Return the parent of node in this tree, or null if node is the root node.
return node.parent;
public void makeRoot (E elem) {
// Make this tree consist of just a root node containing element elem.
root = new Node(elem);
public Node addChild (Node node, E elem) {
// Add a new node containing element elem as a child of node in this
// tree. The new node has no children of its own. Return the node
// just added.
Node newChild = new Node(elem);
newChild.parent = node;
node.children.addLast(newChild);
return newChild;
public E element (Node node) {
return node.getElement();
//////////// Iterators ////////////
public Iterator childrenIterator (Node node) {
return node.children.iterator();
public Iterator nodesPreOrder () {
// Return an iterator that visits all nodes of this tree, with a pre-order
// traversal.
return new Tree.PreOrderIterator();
//////////// Inner classes ////////////
public class Node {
// Each Tree.Node object is a node of an
// unordered tree, and contains a single element.
// This tree node consists of an element (element),
// a link to its parent
// and a LinkedList of its children
private E element;
private Node parent;
private LinkedList<Node> children;
private Node (E elem) {
// Construct a tree node, containing element elem, that has no
// children and no parent.
this.element = elem;
this.parent = null;
children = new LinkedList<Node>();
public E getElement () {
// Return the element contained in this node.
return this.element;
public String toString () {
// Convert this tree node and all its children to a string.
String children = "";
// write code here to add all children
return element.toString() + children;
public void setElement (E elem) {
// Change the element contained in this node to be elem.
this.element = elem;
public class PreOrderIterator implements Iterator {
private Deque<Node> track; //Java recommends using Deque rather
// than Stack. This is used to store sequence of nomempty subtrees still
//to be visited
private PreOrderIterator () {
track = new LinkedList();
if (root != null)
track.addFirst(root);
public boolean hasNext () {
return (! track.isEmpty());
public E next () {
Node place = track.removeFirst();
//stack the children in reverse order
if (!place.children.isEmpty()) {
int size = place.children.size(); //number of children
ListIterator<Node> lIter =
place.children.listIterator(size); //start iterator at last child
while (lIter.hasPrevious()) {
Node element = lIter.previous();
track.addFirst(element);
return place.element;
public void remove () {
throw new UnsupportedOperationException();
FileHierarchy.java
import java.io.File;
import java.util.Iterator;
public class FileHierarchy {
// Each FileHierarchy object describes a hierarchical collection of
// documents and folders, in which a folder may contain any number of
// documents and other folders. Within a given folder, all documents and
// folders have different names.
// This file hierarchy is represented by a tree, fileTree, whose elements
// are Descriptor objects.
private Tree fileTree;
//////////// Constructor ////////////
public FileHierarchy (String startingDir, int level) {
// Construct a file hierarchy with level levels, starting at
// startingDir
// Can initially ignore level and construct as many levels as exist
fileTree = new Tree();
Descriptor descr = new Descriptor(startingDir, true);
fileTree.makeRoot(descr);
int currentLevel = 0;
int maxLevel = level;
addSubDirs(fileTree.root(), currentLevel, maxLevel);
//////////// File hierarchy operations ////////////
private void addSubDirs(Tree.Node currentNode, int currentLevel,
int maxLevel) {
// get name of directory in currentNode
// then find its subdirectories (can add files later)
// for each subdirectory:
// add it to children of currentNode - call addChild method of Tree
// call this method recursively on each child node representing a subdir
// can initially ignore currentLevel and maxLevel
Descriptor descr = (Descriptor) currentNode.getElement();
File f = new File(descr.name);
File[] list = f.listFiles();
for (int i = 0; i < list.length; ++i) {
if (list.isDirectory()) {
File[] listx = null;
fileTree.addChild(currentNode, i);
if (list[i].list().length != 0) {
listx = list[1].listFiles();
addSubDirs(currentNode,i,1);
} else if (list[i].isFile()) {
fileTree.addChild(currentNode, i);
// The following code is sample code to illustrate how File class is
// used to get a list of subdirectories from a starting directory
// list now contains subdirs and files
// contained in dir descr.name
////////// Inner class for document/folder descriptors. //////////
private static class Descriptor {
// Each Descriptor object describes a document or folder.
private String name;
private boolean isFolder;
private Descriptor (String name, boolean isFolder) {
this.name = name;
this.isFolder = isFolder;
FileHierarchyTest.javapublic class FileHierarchyTest {
private static Tree fileTree;
public static void main(String[] args) {
FileHierarchy test = new FileHierarchy ("//test", 1);
System.out.println(test.toString());Denis,
Do you have [red hair|http://www.dennisthemenace.com/]? ;-)
My advise with the tree structure is pretty short and sweet... make each node remember
1. it's parent
2. it's children
That's how the file system (inode) actually works.
<quote>
The exact reasoning for designating these as "i" nodes is unsure. When asked, Unix pioneer Dennis Ritchie replied:[citation needed]
In truth, I don't know either. It was just a term that we started to use. "Index" is my best guess, because of the
slightly unusual file system structure that stored the access information of files as a flat array on the disk, with all
the hierarchical directory information living aside from this. Thus the i-number is an index in this array, the
i-node is the selected element of the array. (The "i-" notation was used in the 1st edition manual; its hyphen
became gradually dropped).</quote> -
Getting error in sheduling report using InfoStore
Hi I am trying to shedule a report using InfoStore, I am getting excetpin like
Exception in thread "main" java.lang.UnsupportedOperationException
at java.util.AbstractList.add(AbstractList.java:151)
at java.util.AbstractList.add(AbstractList.java:89)
at Scheduler.main(Scheduler.java:89)
Please find the code below
IInfoObjects objectsToSchedule = infostore.newInfoObjectCollection();
objectsToSchedule.add(report);
infostore.schedule(objectsToSchedule);Hi Jhon,
Thanks for your promt reploy,
Could you please look into my code pasted below, I wanted to shedule a report to run pl. see it once
Thanks
Damodar
public class Scheduler {
public static void main(String[] args) throws ReportSDKException {
String cms = "XX";
String username = "XX";
String password = "XX";
String auth = "XX";
IEnterpriseSession enterpriseSession = null;
try {
ISessionMgr sm = CrystalEnterprise.getSessionMgr();
enterpriseSession = sm.logon(username, password, cms, auth);
IInfoStore oInfoStore=(IInfoStore)enterpriseSession.getService("", "InfoStore");
IInfoObject oInfoObject = null;
String requestReportName = "EMP_DETAIL";
String query = "SELECT * FROM CI_INFOOBJECTS WHERE SI_NAME = '" + requestReportName + "'";
IInfoObjects oInfoObjects = oInfoStore.query(query);
System.out.println("oInfoObjects.size : "+oInfoObjects.size());
if (oInfoObjects.size() > 0)
//Use the InfoObject.SchedulingInfo property to retrieve an instance of the SchedulingInfo object.
System.out.println("%%%%%%"+(IInfoObject) oInfoObjects.get(0));
IInfoObject report = (IInfoObject) oInfoObjects.get(0);
ISchedulingInfo scheduleInfo = report.getSchedulingInfo();
// Set the scheduling options.
// The report will be set to run immediately and only once.
scheduleInfo.setType(CeScheduleType.ONCE);
scheduleInfo.setRightNow(true);
// Schedule the report using the InfoStore object.
IInfoObjects objectsToSchedule = oInfoStore.newInfoObjectCollection();
objectsToSchedule.add(report);
oInfoStore.schedule(objectsToSchedule);
else {
System.out.println("Report not found.");
catch (SDKException e) {
e.printStackTrace();
System.out.println("Error -->"+e.getMessage()); -
Using a Document Listener to update a text field
Hi,
Background:
I need to retrieve a number from a card using a hand scanner. I'm currently using a jTextField1 in Netbeans to do this. When the number is input (the format is 6 digits, i.e. 123456) the rest of the form fields are filled in and updated automatically from an oracle database as it should. I have the database being checked as soon as the field reaches 6 characters (doc.getLength() == 6), It all works great.
Problem:
The problem comes in when I need to input a card that has a newer, different format of numbers and characters, i.e. **001234567**, it's more than 6 characters. I need only the 123456 substring to update the form, and the 7 substring to input later.
What I tried:
I'm using the combination of pattern matching and substring to get the 1234567 part only. I thought of using a hidden field on the form to input the numbers to and then set the text of jTextField1. I'm not sure this would work and seems like a hack anyways.
Code:
public void updateLog(DocumentEvent e, String action) {
Document doc = (Document) e.getDocument();
Integer docLength = doc.getLength();
String isCardLegal = jTextField1.getText(); // getting card from textbox
returnString Del = new returnString();
String str = Del.getNewNumberFromCard(isCardLegal);
System.out.println("str: " +str);
if (docLength == 6) {
// see if number exists in database here
public class returnString {
public String getNewNumberFromCard(String oldString) {
Pattern p = Pattern.compile("\\*");
Matcher m = p.matcher(oldString);
String newString = m.replaceAll("");
// takes off leading zeros when using a new card
// otherwise just returns the string as-is
if (newString.length() == 9) {
newString = newString.substring(2);
return newString;
} else {
return newString;
}Does anyone have a better way to do this? I hope I was clear in my explanation.
Thank You for your help,
Alan
Edited by: shadow_coder on Oct 8, 2009 12:01 PMI really thank you for your help, I realize I wasn't clear because I wasn't sure about too many different things. I'll try it again:
I need to use a hand scanner to input id cards having 2 different character sets. I now realize I can have the scanner insert a carriage return at the end of the scan, so I need to be able to detect this carriage return. I'm using a documentlistener to look at each character in the textfield. The character sets I need to use are 6 characters long, and an 11 character long set (including asterisks).
Here is my SSCCE:
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
public class exampleCase extends JFrame implements ActionListener {
JTextField textField1;
public exampleCase() {
getContentPane().setLayout(new FlowLayout());
textField1 = new JTextField(15);
textField1.getDocument().addDocumentListener(new MyDocumentListener());
textField1.getDocument().putProperty("name", "TextField");
getContentPane().add(textField1);
setSize(300, 170);
setVisible(true);
public static void main(String argv[]) {
new exampleCase();
public void actionPerformed(ActionEvent e) {
throw new UnsupportedOperationException("Not supported yet.");
class MyDocumentListener implements DocumentListener {
public void insertUpdate(DocumentEvent e) {
updateLog(e, "inserted into ");
public void removeUpdate(DocumentEvent e) {
updateLog(e, "removed from ");
public void changedUpdate(DocumentEvent e) {
throw new UnsupportedOperationException("Not supported yet.");
public void updateLog(DocumentEvent e, String action) {
String newline = "\n";
Document doc = (Document) e.getDocument();
int changeLength = e.getLength();
System.out.println(
changeLength +" character"+
((changeLength == 1) ? " " : "s ")
action+ doc.getProperty("name") +"."+ newline
" Text length = "+ doc.getLength() +newline);
try {
String docCharacters = doc.getText(0, 2); // Exception when increased
System.out.println("Characters are: "+ docCharacters);
if (docCharacters.equals("\\r")) { // How to check for carriage return?
System.out.println("I'm Here, Yeeaaah!!");
} catch (BadLocationException ex) {
System.out.println("Error Here, bad location" + ex);
}When I increase the '2' to be able to handle the characters, I get javax.swing.text.BadLocationException: Invalid location can anyone tell me why? I'm not sure why it works when the number is at 2 but not others!
The other issue is, what is the correct way to detect a carriage return? I was able to test this when the number above was at 2. This doesn't work. -
UnsupportedOperationException Error while removing object from List
Hi,
I need to remove a set of objects from List if it contains similar objects as the other one.
Follwing is the code snippet of the above scenario...
List selectedPaxList = new ArrayList();
TreeSet seatAssignedPaxlist= new TreeSet();
selectedPaxList.add("1");
selectedPaxList.add("2");
selectedPaxList.add("3");
seatAssignedPaxlist.add("1");
seatAssignedPaxlist.add("2");
if(selectedPaxList.containsAll(seatAssignedPaxlist))
selectedPaxList.removeAll(seatAssignedPaxlist);
If i do this in java program it executes fine without any error.But if I do the same in JSP I am getting the following error......
java.lang.UnsupportedOperationException
at java.util.AbstractList.remove(AbstractList.java:167)
at java.util.AbstractList$Itr.remove(AbstractList.java:432)
at java.util.AbstractCollection.removeAll(AbstractCollection.java:351)
Plz... help me to resolve the issuejava.lang.UnsupportedOperationException
at
java.util.AbstractList.remove(AbstractList.java:167)
at
java.util.AbstractList$Itr.remove(AbstractList.java:43
2)
at
java.util.AbstractCollection.removeAll(AbstractCollect
ion.java:351)
That stack trace looks wrong to me.
ArrayList overrides the remove method, so it
shouldn't be using the method in AbstractList. That's what I thought, too. There is either something missing or it's not an ArrayList. In fact the javadoc of AbstractList.remove sais:
"This implementation always throws an UnsupportedOperationException."
So it really looks like another subclass is used.
Also
the object it is trying to remove is a list (from
your exmaple it should be a String)
I could be wrong.These are just the code references not the parameters, I think.
-Puce -
TTL specified in put operation doesn't always work when using write-behind
I'm using a distributed cache with a write-behind cache store (see the config below). I found that when I do something like myCache.put(key, value, ttl), the entry survives the specified ttl. I tried doing the same with a distributed cache with a write-through cachestore and there everything does happen correctly.
Is this sort of operation not permitted in caches containing a write-behind cachestore? If not wouldn't it be better to throw an UnsupportedOperationException.
I created a small test to simulate this. I added values to the cache with a TTL of 1 to 10 seconds and found that the 10 second entries stayed in the cache.
Configuration used:
<?xml version="1.0"?>
<!DOCTYPE cache-config SYSTEM "cache-config.dtd">
<cache-config>
<caching-scheme-mapping>
<cache-mapping>
<cache-name>TTL_TEST</cache-name>
<scheme-name>testScheme</scheme-name>
</cache-mapping>
</caching-scheme-mapping>
<caching-schemes>
<distributed-scheme>
<scheme-name>testScheme</scheme-name>
<service-name>testService</service-name>
<backing-map-scheme>
<read-write-backing-map-scheme>
<internal-cache-scheme>
<local-scheme>
<service-name>testBackLocalService</service-name>
</local-scheme>
</internal-cache-scheme>
<cachestore-scheme>
<class-scheme>
<scheme-name>testBackStore</scheme-name>
<class-name>TTLTestServer$TestCacheStore</class-name>
</class-scheme>
</cachestore-scheme>
<write-delay>3s</write-delay>
</read-write-backing-map-scheme>
</backing-map-scheme>
<local-storage>true</local-storage>
<autostart>true</autostart>
</distributed-scheme>
</caching-schemes>
</cache-config>Code of test:
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import org.joda.time.DateTime;
import org.joda.time.Duration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.StopWatch;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import com.google.common.collect.Lists;
import com.tangosol.net.CacheFactory;
import com.tangosol.net.NamedCache;
import com.tangosol.net.cache.CacheStore;
@Test
public class TTLTestServer
private static final int RETRIES = 5;
private static final Logger logger = LoggerFactory.getLogger( TTLTestServer.class );
private NamedCache m_cache;
* List of Time-To-Lives in seconds to check
private final List<Integer> m_listOfTTLs = Lists.newArrayList(1, 3, 5, 10);
* Test is done in separate threads to speed up the test
private final ExecutorService m_executorService = Executors.newCachedThreadPool();
@BeforeClass
public void setup()
logger.info("Getting the cache");
m_cache = CacheFactory.getCache("TTL_TEST");
public static class TestCacheStore implements CacheStore
public void erase(Object arg0)
public void eraseAll(Collection arg0)
public void store(Object arg0, Object arg1)
public void storeAll(Map arg0)
public Object load(Object arg0)
{return null;}
public Map loadAll(Collection arg0)
{return null;}
public void testTTL() throws InterruptedException, ExecutionException
logger.info("Starting TTL test");
List<Future<StopWatch>> futures = Lists.newArrayList();
for (final Integer ttl : m_listOfTTLs)
futures.add(m_executorService.submit(new Callable()
public Object call() throws Exception
StopWatch stopWatch= new StopWatch("TTL=" + ttl);
for (int retry = 0; retry < RETRIES; retry++)
logger.info("Adding a value in cache for TTL={} in try={}", ttl, retry+1);
stopWatch.start("Retry="+retry);
m_cache.put(ttl, null, ttl*1000);
waitUntilNotInCacheAnymore(ttl, retry);
stopWatch.stop();
return stopWatch;
private void waitUntilNotInCacheAnymore(final Integer ttl, final int currentTry) throws InterruptedException
DateTime startTime = new DateTime();
long maxMillisToWait = ttl*2*1000; //wait max 2 times the time of the ttl
while(m_cache.containsKey(ttl) )
Duration timeTaken = new Duration(startTime, new DateTime());
if(timeTaken.getMillis() > maxMillisToWait)
throw new RuntimeException("Already waiting " + timeTaken + " for ttl=" + ttl + " and retry=" + currentTry);
Thread.sleep(1000);
logger.info("Waiting until all futures are finished");
m_executorService.shutdown();
logger.info("Getting results from futures");
for (Future<StopWatch> future : futures)
StopWatch sw = future.get();
logger.info(sw.prettyPrint());
}Failure message:
FAILED: testTTL
java.util.concurrent.ExecutionException: java.lang.RuntimeException: Already waiting PT20.031S for ttl=10 and retry=0
at java.util.concurrent.FutureTask$Sync.innerGet(Unknown Source)
at java.util.concurrent.FutureTask.get(Unknown Source)
at TTLTestServer.testTTL(TTLTestServer.java:159)
Caused by: java.lang.RuntimeException: Already waiting PT20.031S for ttl=10 and retry=0
at TTLTestServer$1.waitUntilNotInCacheAnymore(TTLTestServer.java:139)
at TTLTestServer$1.call(TTLTestServer.java:122)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)I'm using Coherence 3.4.2.
Best regards
JanHi, still no luck. However, I noticed that setting the write-delay value of the write-behind store to 0s or 1s, solved the problem. It only starts to given me "the node has already been removed" excpetions once the write-delay value is 2s or higher.
You can find the coherence-cache-config.xml below:
<?xml version="1.0"?>
<!DOCTYPE cache-config SYSTEM "cache-config.dtd">
<cache-config>
<caching-scheme-mapping>
<cache-mapping>
<cache-name>TTL_TEST</cache-name>
<scheme-name>testScheme</scheme-name>
</cache-mapping>
</caching-scheme-mapping>
<caching-schemes>
<distributed-scheme>
<scheme-name>testScheme</scheme-name>
<service-name>testService</service-name>
<backing-map-scheme>
<read-write-backing-map-scheme>
<internal-cache-scheme>
<local-scheme>
<service-name>testBackLocalService</service-name>
</local-scheme>
</internal-cache-scheme>
<cachestore-scheme>
<class-scheme>
<scheme-name>testBackStore</scheme-name>
<class-name>TTLTestServer$TestCacheStore</class-name>
</class-scheme>
</cachestore-scheme>
<write-delay>2s</write-delay>
</read-write-backing-map-scheme>
</backing-map-scheme>
<local-storage>true</local-storage>
<autostart>true</autostart>
</distributed-scheme>
</caching-schemes>
</cache-config>You can find the test program below:
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import org.joda.time.DateTime;
import org.joda.time.Duration;
import org.springframework.util.StopWatch;
import com.tangosol.net.CacheFactory;
import com.tangosol.net.NamedCache;
import com.tangosol.net.cache.CacheStore;
public class TTLTestServer
private static final int RETRIES = 5;
private NamedCache m_cache;
* List of Time-To-Lives in seconds to check
private final List<Integer> m_listOfTTLs = new ArrayList<Integer>();
* @param args
* @throws Exception
public static void main( String[] args ) throws Exception
new TTLTestServer().test();
* Empty CacheStore
* @author jbe
public static class TestCacheStore implements CacheStore
public void erase(Object arg0)
@SuppressWarnings ( "unchecked" )
public void eraseAll(Collection arg0)
public void store(Object arg0, Object arg1)
@SuppressWarnings ( "unchecked" )
public void storeAll(Map arg0)
public Object load(Object arg0)
{return null;}
@SuppressWarnings ( "unchecked" )
public Map loadAll(Collection arg0)
{return null;}
* Sets up and executes the test setting values in a cache with a given time-to-live value and waiting for the value to disappear.
* @throws Exception
private void test() throws Exception
System.out.println(new DateTime() + " - Setting up TTL test");
m_cache = CacheFactory.getCache("TTL_TEST");
m_listOfTTLs.add( 1 );
m_listOfTTLs.add( 3 );
m_listOfTTLs.add( 5 );
m_listOfTTLs.add( 10);
System.out.println(new DateTime() + " - Starting TTL test");
for (final Integer ttl : m_listOfTTLs)
StopWatch sw = doTest(ttl);
System.out.println(sw.prettyPrint());
* Adds a value to the cache with the time-to-live as given by the ttl parameter and waits until it's removed from the cache.
* Repeats this {@link #RETRIES} times
* @param ttl
* @return
* @throws Exception
private StopWatch doTest(Integer ttl) throws Exception
StopWatch stopWatch= new StopWatch("TTL=" + ttl);
for (int retry = 0; retry < RETRIES; retry++)
System.out.println(new DateTime() + " - Adding a value in cache for TTL=" + ttl + " in try= " + (retry+1));
stopWatch.start("Retry="+retry);
m_cache.put(ttl, null, ttl*1000);
waitUntilNotInCacheAnymore(ttl, retry);
stopWatch.stop();
return stopWatch;
* Wait until the value for the given ttl is not in the cache anymore
* @param ttl
* @param currentTry
* @throws InterruptedException
private void waitUntilNotInCacheAnymore(final Integer ttl, final int currentTry) throws InterruptedException
DateTime startTime = new DateTime();
long maxMillisToWait = ttl*2*1000; //wait max 2 times the time of the ttl
while(m_cache.containsKey(ttl) )
Duration timeTaken = new Duration(startTime, new DateTime());
if(timeTaken.getMillis() > maxMillisToWait)
throw new RuntimeException("Already waiting " + timeTaken + " for ttl=" + ttl + " and retry=" + currentTry);
Thread.sleep(1000);
}You can find the output below:
2009-12-03T11:50:04.584+01:00 - Setting up TTL test
2009-12-03 11:50:04.803/0.250 Oracle Coherence 3.5.2/463p2 <Info> (thread=main, member=n/a): Loaded operational configuration from resource "jar:file:/C:/Temp/coherence3.5.2/coherence-java-v3.5.2b463-p1_2/coherence/lib/coherence.jar!/tangosol-coherence.xml"
2009-12-03 11:50:04.803/0.250 Oracle Coherence 3.5.2/463p2 <Info> (thread=main, member=n/a): Loaded operational overrides from resource "jar:file:/C:/Temp/coherence3.5.2/coherence-java-v3.5.2b463-p1_2/coherence/lib/coherence.jar!/tangosol-coherence-override-dev.xml"
2009-12-03 11:50:04.803/0.250 Oracle Coherence 3.5.2/463p2 <D5> (thread=main, member=n/a): Optional configuration override "/tangosol-coherence-override.xml" is not specified
2009-12-03 11:50:04.803/0.250 Oracle Coherence 3.5.2/463p2 <D5> (thread=main, member=n/a): Optional configuration override "/custom-mbeans.xml" is not specified
Oracle Coherence Version 3.5.2/463p2
Grid Edition: Development mode
Copyright (c) 2000, 2009, Oracle and/or its affiliates. All rights reserved.
2009-12-03 11:50:04.943/0.390 Oracle Coherence GE 3.5.2/463p2 <Info> (thread=main, member=n/a): Loaded cache configuration from "file:/C:/jb/workspace3.5/TTLTest/target/classes/coherence-cache-config.xml"
2009-12-03 11:50:05.318/0.765 Oracle Coherence GE 3.5.2/463p2 <D5> (thread=Cluster, member=n/a): Service Cluster joined the cluster with senior service member n/a
2009-12-03 11:50:08.568/4.015 Oracle Coherence GE 3.5.2/463p2 <Info> (thread=Cluster, member=n/a): Created a new cluster "cluster:0xD3FB" with Member(Id=1, Timestamp=2009-12-03 11:50:05.193, Address=172.16.44.32:8088, MachineId=36896, Location=process:11848, Role=TTLTestServerTTLTestServer, Edition=Grid Edition, Mode=Development, CpuCount=2, SocketCount=2) UID=0xAC102C20000001255429380990201F98
2009-12-03 11:50:08.584/4.031 Oracle Coherence GE 3.5.2/463p2 <D5> (thread=Invocation:Management, member=1): Service Management joined the cluster with senior service member 1
2009-12-03 11:50:08.756/4.203 Oracle Coherence GE 3.5.2/463p2 <D5> (thread=DistributedCache:testService, member=1): Service testService joined the cluster with senior service member 1
2009-12-03T11:50:08.803+01:00 - Starting TTL test
2009-12-03T11:50:08.818+01:00 - Adding a value in cache for TTL=1 in try= 1
2009-12-03T11:50:09.818+01:00 - Adding a value in cache for TTL=1 in try= 2
Exception in thread "main" (Wrapped: Failed request execution for testService service on Member(Id=1, Timestamp=2009-12-03 11:50:05.193, Address=172.16.44.32:8088, MachineId=36896, Location=process:11848, Role=TTLTestServerTTLTestServer)) java.lang.IllegalStateException: the node has already been removed
at com.tangosol.util.Base.ensureRuntimeException(Base.java:293)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.tagException(Grid.CDB:36)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache.onContainsKeyRequest(DistributedCache.CDB:41)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache$ContainsKeyRequest.run(DistributedCache.CDB:1)
at com.tangosol.coherence.component.net.message.requestMessage.DistributedCacheKeyRequest.onReceived(DistributedCacheKeyRequest.CDB:12)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.onMessage(Grid.CDB:9)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.onNotify(Grid.CDB:136)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache.onNotify(DistributedCache.CDB:3)
at com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:42)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.IllegalStateException: the node has already been removed
at com.tangosol.util.AbstractSparseArray$Crawler.remove(AbstractSparseArray.java:1274)
at com.tangosol.net.cache.OldCache.evict(OldCache.java:580)
at com.tangosol.net.cache.OldCache.containsKey(OldCache.java:171)
at com.tangosol.net.cache.ReadWriteBackingMap.containsKey(ReadWriteBackingMap.java:597)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.DistributedCache.onContainsKeyRequest(DistributedCache.CDB:25)
... 7 more
2009-12-03 11:50:10.834/6.281 Oracle Coherence GE 3.5.2/463p2 <D4> (thread=ShutdownHook, member=1): ShutdownHook: stopping cluster node
2009-12-03 11:50:10.834/6.281 Oracle Coherence GE 3.5.2/463p2 <D5> (thread=Cluster, member=1): Service Cluster left the clusterBest regards
Jan -
Reading large files -- use FileChannel or BufferedReader?
Question --
I need to read files and get their content. The issue is that I have no idea how big the files will be. My best guess is that most are less than 5kb but some with be huge.
I have it set up using a BufferedReader, which is working fine. It's not the fastest thing (using readLine() and StringBuffer.append()), but so far it's usable. However, I'm worried that if I need to deal with large files, such as a PDF or other binary, BufferedReader won't be so efficient if I do it line by line. (And will I run into issues trying to put a binary file into a String?)
I found a post that recommended FileChannel and ByteBuffer, but I'm running into a java.lang.UnsupportedOperationException when trying to get the byte[] from ByteBuffer.
File f = new File(binFileName);
FileInputStream fis = new FileInputStream(f);
FileChannel fc = fis.getChannel();
// Get the file's size and then map it into memory
int sz = (int)fc.size();
MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, sz);
fc.close();
String contents = new String(bb.array()); //code blows up
Thanks in advance.If all you are doing is reading data I don't think you're going to get much faster than InfoFetcher
you are welcome to use and modify this class, but please don't change the package or take credit for it as your own work
InfoFetcher.java
==============
package tjacobs.io;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Iterator;
* InfoFetcher is a generic way to read data from an input stream (file, socket, etc)
* InfoFetcher can be set up with a thread so that it reads from an input stream
* and report to registered listeners as it gets
* more information. This vastly simplifies the process of always re-writing
* the same code for reading from an input stream.
* <p>
* I use this all over
public class InfoFetcher implements Runnable {
public byte[] buf;
public InputStream in;
public int waitTime;
private ArrayList mListeners;
public int got = 0;
protected boolean mClearBufferFlag = false;
public InfoFetcher(InputStream in, byte[] buf, int waitTime) {
this.buf = buf;
this.in = in;
this.waitTime = waitTime;
public void addInputStreamListener(InputStreamListener fll) {
if (mListeners == null) {
mListeners = new ArrayList(2);
if (!mListeners.contains(fll)) {
mListeners.add(fll);
public void removeInputStreamListener(InputStreamListener fll) {
if (mListeners == null) {
return;
mListeners.remove(fll);
public byte[] readCompletely() {
run();
return buf;
public int got() {
return got;
public void run() {
if (waitTime > 0) {
TimeOut to = new TimeOut(waitTime);
Thread t = new Thread(to);
t.start();
int b;
try {
while ((b = in.read()) != -1) {
if (got + 1 > buf.length) {
buf = IOUtils.expandBuf(buf);
int start = got;
buf[got++] = (byte) b;
int available = in.available();
//System.out.println("got = " + got + " available = " + available + " buf.length = " + buf.length);
if (got + available > buf.length) {
buf = IOUtils.expandBuf(buf, Math.max(got + available, buf.length * 2));
got += in.read(buf, got, available);
signalListeners(false, start);
if (mClearBufferFlag) {
mClearBufferFlag = false;
got = 0;
} catch (IOException iox) {
throw new PartialReadException(got, buf.length);
} finally {
buf = IOUtils.trimBuf(buf, got);
signalListeners(true);
private void setClearBufferFlag(boolean status) {
mClearBufferFlag = status;
public void clearBuffer() {
setClearBufferFlag(true);
private void signalListeners(boolean over) {
signalListeners (over, 0);
private void signalListeners(boolean over, int start) {
if (mListeners != null) {
Iterator i = mListeners.iterator();
InputStreamEvent ev = new InputStreamEvent(got, buf, start);
//System.out.println("got: " + got + " buf = " + new String(buf, 0, 20));
while (i.hasNext()) {
InputStreamListener fll = (InputStreamListener) i.next();
if (over) {
fll.gotAll(ev);
} else {
fll.gotMore(ev);
}
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