Log API: StreamHandler.flush() throws IOException ?

For some network error reason, my logging stopped working and i noticed this exception in the console:
java.util.logging.ErrorManager: 2
java.io.IOException: The specified network name is no longer available
        at java.io.FileOutputStream.writeBytes(Native Method)
        at java.io.FileOutputStream.write(Unknown Source)
        at sun.nio.cs.StreamEncoder$CharsetSE.writeBytes(Unknown Source)
        at sun.nio.cs.StreamEncoder$CharsetSE.implFlushBuffer(Unknown Source)
        at sun.nio.cs.StreamEncoder$CharsetSE.implFlush(Unknown Source)
        at sun.nio.cs.StreamEncoder.flush(Unknown Source)
        at java.io.OutputStreamWriter.flush(Unknown Source)
        at java.util.logging.StreamHandler.flush(Unknown Source)
        at de.icp.logging.RollingFileHandler.publish(Unknown Source)I looked into the javadoc of StreamHandler.flush() and can't find any documented Exception that is thrown. As IOException is not an unchecked exception, this seems to be a javadoc bug, right?
My "RollingFileHandler extends StreamHandler and my publish() looks like this:
     * Overwrites super.
    public synchronized void publish(LogRecord record) {
        if (!isLoggable(record)) {
            return;
        //check if we need to rotate
        if (System.currentTimeMillis() >= nextCycle) { //next cycle?
            role();
        super.publish(record);
        flush(); //throws IOException ??????
    }//publish()

Hm ... i think overwriting reportError() is useful:
     * Overwrites super.
     * Reopen log file in case of an error.
    protected void reportError(String msg, Exception ex, int code) {
        super.reportError(msg, ex, code); //standard behaviour of Handler
       //on logging error, try to reopen the logfile:
        openFile();
        LogRecord record = new LogRecord(Level.WARNING, "Log file re-opened due to error:");
        record.setThrown(ex);
        publish(record);
    }//reportError()

Similar Messages

Log API: daily roling file appender?

my task is to replace Log4J with the JDK 1.4 logging API. how can i configure the logging to have a FileHandler that does daily rolling (like Log4J DailyRollingFileAppender) and offer a a date pattern for the file name (like Log4J DatePattern)?
the result should be that each day, a new log file is created with the old files having a datepattern in the file names.

Well, i wrote my own now, that supports time rolling (day, week, month, year) and later additional rollings. here's a start:
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.logging.*;
* File handler that supports different kind of rolling than java.util.logging.FileHandler.
* Supported rolling methods are: by date (day).
* <p>
* Example of entries in the logging file (system property "java.util.logging.config.file"):
* <p>
<table align="center" bgcolor="#ddddff" border=1 cellpadding="10" cellspacing="0"><tr><td><pre>
logging.RollingFileHandler.level = FINEST
logging.RollingFileHandler.prefix = MyApp_
logging.RollingFileHandler.dateFormat = yyyyMMdd
logging.RollingFileHandler.suffix = .log
logging.RollingFileHanlder.cycle=day
logging.RollingFileHandler.formatter = java.util.logging.SimpleFormatter
</pre></td></tr></table>
<p>
* @version $Revision:$ ($Date:$)
* @author $Author:$
public class RollingFileHandler extends StreamHandler {
    /** File prefix. */
    private static String prefix = null;
    /** Date format to use in file name. */
    private static String dateFormat = "yyyy-MM-dd"; //default
    /** File suffix. */
    private static String suffix = null;
    /** Time in milliseconds for the next cycle */
    private static long nextCycle = 0;
    /** Time cycle (for file roling) */
    private static String cycle = "day"; //default
     * Constructor.
    public RollingFileHandler() {
        super();
        LogManager manager = LogManager.getLogManager();
        String className = RollingFileHandler.class.getName();
        prefix = manager.getProperty(className + ".prefix");
        String dfs = manager.getProperty(className + ".dateFormat");
        suffix = manager.getProperty(className + ".suffix");
        String c = manager.getProperty(className + ".cycle");
        String formatter = manager.getProperty(className + ".formatter");
        if (dfs != null) {
            dateFormat = dfs;
        if (c != null) {
            if (c.equalsIgnoreCase("day") || c.equalsIgnoreCase("week") || c.equalsIgnoreCase("month") || c.equalsIgnoreCase("year")) {
                cycle = c;
        if (formatter != null) {
            try {
                setFormatter((Formatter) Class.forName(formatter).newInstance());
            } catch (Exception e) {
                e.printStackTrace(System.err);
        openFile();
    }//RollingFileHandler()
      * Open existing or create new log file.
     private synchronized void openFile() {
        //create file name:
        String dateString = dateFormat; //default (to note error in file name)
        Date currentDate= new Date();
        try {
            SimpleDateFormat sdf = new SimpleDateFormat(dateFormat, Locale.getDefault());
            dateString = sdf.format(currentDate);
        } catch (IllegalArgumentException iae) {
            /* ignore wrong date format */
        //compute next cycle:
        Date nextDate = null;
        GregorianCalendar gc = new GregorianCalendar();
        gc.setTime(currentDate);
        if (cycle.equalsIgnoreCase("week")) {
            gc.add(Calendar.WEEK_OF_YEAR, 1);
            nextDate = gc.getTime();
        } else if (cycle.equalsIgnoreCase("month")) {
            gc.add(Calendar.MONTH, 1);
            int month = gc.get(Calendar.MONTH);
            int year = gc.get(Calendar.YEAR);
            GregorianCalendar gc2 = new GregorianCalendar(year, month, 1);
            nextDate = gc2.getTime();
        } else if (cycle.equalsIgnoreCase("year")) {
            gc.add(Calendar.YEAR, 1);
            int year = gc.get(Calendar.YEAR);
            GregorianCalendar gc2 = new GregorianCalendar(year, 0, 1);
            nextDate = gc2.getTime();
        } else { //day by default
            gc.add(Calendar.DAY_OF_MONTH, 1);
            nextDate = gc.getTime();
        //to zero time:
        gc = new GregorianCalendar();
        gc.setTime(nextDate);
        gc.set(Calendar.HOUR, 0);
        gc.set(Calendar.HOUR_OF_DAY, 0);
        gc.set(Calendar.MINUTE, 0);
        gc.set(Calendar.SECOND, 0);
        gc.set(Calendar.MILLISECOND, 0);
        nextDate = gc.getTime();
        nextCycle = nextDate.getTime();
        //create new file:
        String fileName = prefix + dateString + suffix;
        File file = new File(fileName);
        //create file:
        if (!file.exists()) {
            try {
                file.createNewFile();
            } catch (IOException ioe) {
                ioe.printStackTrace(System.err);
        //set log file as OutputStream:
        try {
            FileOutputStream fos = new FileOutputStream(file, true);
            setOutputStream(fos);
        } catch (FileNotFoundException fnfe) {
            reportError(null, fnfe, ErrorManager.OPEN_FAILURE);
            fnfe.printStackTrace(System.err);
            setOutputStream(System.out); //fallback stream
    }//openFile()
     * Overwrites super.
    public synchronized void publish(LogRecord record) {
        if (!isLoggable(record)) {
            return;
        super.publish(record);
        flush();
        //check if we need to rotate
        if (System.currentTimeMillis() >= nextCycle) { //next cycle?
            role();
    }//publish()
      * Role file. Close current file and possibly create new file.
     final private synchronized void role() {
        Level oldLevel = getLevel();
        setLevel(Level.OFF);
        super.close();
        openFile();
        setLevel(oldLevel);
    }//rotate()
}//RollingFileHandler

Log API

Hello,
I'm new to the log API. I do a test (see below) but no trace are printed.
public class ATest {
    private static Logger logger = Logger.getLogger(ATest.class.toString());
    public ATest() {
        logger.fine("Prints a trace");
    public static void main(String[] args) throws IOException {
          Handler fh = new FileHandler("pp.log");
          Handler ch = new ConsoleHandler() ;
          Handler sh = new StreamHandler(
               System.out,
               new SimpleFormatter()) ;
          Logger.getLogger("").addHandler(fh);
          Logger.getLogger("").addHandler(ch);
          Logger.getLogger("").addHandler(sh);
          Logger.getLogger("").setLevel(Level.ALL) ;
          new ATest() ;
}Can someone help me ?
Thx

Can someone help me ?Perhaps.
Here
private static Logger logger =
er = Logger.getLogger(ATest.class.toString());You get a named logger for the class (assuming you changed this to use the class name, as the earlier post mentioned)
Here:
public static void main(String[] args) throws
rows IOException {
     Handler fh = new FileHandler("pp.log");
     Handler ch = new ConsoleHandler() ;
     Handler sh = new StreamHandler(
          System.out,
          new SimpleFormatter()) ;
     Logger.getLogger("").addHandler(fh);
     Logger.getLogger("").addHandler(ch);
     Logger.getLogger("").addHandler(sh);
     Logger.getLogger("").setLevel(Level.ALL) ;
     new ATest() ;
}you are getting a logger for "" and adding handlers and such for it. You then try to make a call to the FINE level with your original (and different) logger which is probably using the default config. This default config specifies INFO level in general, and INFO specifically for ConsoleHandler,
The first thing to do to actually get output is to change your level from FINE to INFO or better. The second thing is to read this:
See http://java.sun.com/j2se/1.4.2/docs/guide/util/logging/overview.html#2.1
You can control all of this logging from a configuration file which is a better way to go -- then you don't have to recompile to change logging settings.
- N

Is this logging code faster than using a standard logging API like log4J

is this logging code faster than using a standard logging API like log4J or the logging API in java 1.4
As you can see my needs are extremely simple. write some stuff to text file and write some stuff to dos window.
I am thinking about using this with a multi threaded app. So all the threads ~ 200 will be using this simultaneously.
* Tracer.class logs items according to the following criteria:
* 2 = goes to text file Crawler_log.txt
* 1 = goes to console window because it is higher priority.
* @author Stephen
* @version 1.0
* @since June 2002
import java.io.*;
import java.net.*;
import java.util.*;
import java.text.*;
class Tracer{
public static void log(int traceLevel, String message, Object value)
if(traceLevel == 1){
System.out.println(getLogFileDate(new Date()) +" >" + message+ " value = " + value.toString()););
}else{
pout.write(getLogFileDate(new Date()) +" >" + message + " value = " + value.toString());
pout.flush();
public static void log(int traceLevel, String message )
if(traceLevel == 1){System.out.println(message);
}else{
pout.write(message ) ;
pout.flush();
//public static accessor method
public static Tracer getTracerInstance()
return tracerInstance;
private static String getLogFileDate(Date d )
String s = df.format(d);
String s1= s.replace(',','-');
String s2= s1.replace(' ','-');
String s3= s2.replace(':','.');
System.out.println("getLogFileDate() = " + s3 ) ;
return s3;
//private instance
private Tracer(){
System.out.println("Tracer constructor works");
df = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.MEDIUM);
date = new java.util.Date();
try{
pout = new PrintWriter(new BufferedWriter(new FileWriter("Crawler_log"+getLogFileDate(new Date())+".txt", true)));
pout.write("**************** New Log File Created "+ getLogFileDate(new Date()) +"****************");
pout.flush();
}catch (IOException e){
System.out.println("**********THERE WAS A CRITICAL ERROR GETTING TRACER SINGLETON INITIALIZED. APPLICATION WILL STOP EXECUTION. ******* ");
public static void main(String[] argz){
System.out.println("main method starts ");
Tracer tt = Tracer.getTracerInstance();
System.out.println("main method successfully gets Tracer instance tt. "+ tt.toString());
//the next method is where it fails - on pout.write() of log method. Why ?
tt.log(1, "HIGH PRIORITY");
System.out.println("main method ends ");
//private static reference
private static Tracer tracerInstance = new Tracer();
private static Date date = null;
private static PrintWriter pout = null;
public static DateFormat df = null;
}

In general I'd guess that a small, custom thing will be faster than a large, generic thing with a lot of options. That is, unless the writer of the small program have done something stupid, og the writer of the large program have done something very smart.
One problem with java in this respect is that it is next to impossible to judge exactly how much machine-level processing a single java statement takes. Things like JIT compilers makes it even harder.
In the end, there is really only one way to find out: Test it.

Logging api hangs

Im starting a java application from an applet calling Runtime.getRuntime().exec("java bla bla bla")
Worked fine until I implemented Java 1.4 logging api. Now the application hangs after writing a few info lines to a FileHandler log. It's clearly the logger that hangs because if I set log level = OFF the the program runs just fine.
Has anyone seen anything similar?
* To make it harder to debug, the problem only occurs when starting the application from an applet.

That might happen that spawn process generates lots of output.
Runtime.getRuntime().exec() returns object of type java.lange.Process. That object provide access to the stdout and stderror of the newly created process. If those streams are not cleaned properly then process will hang as soon as OS buffers of those stdout and stderr streams get full.
One way to work around it just read output from the process and throw it away. You can try using something like this:
package com.xxx;
import java.io.InputStream;
public class ProcessOutputWaster {
    public ProcessOutputWaster(Process process)
        throws Exception {
        createWorker(process.getErrorStream()).start();
        createWorker(process.getInputStream()).start();
    protected Worker createWorker(InputStream is) {
        return new Worker(is);
    protected static class Worker
              extends Thread {
        private InputStream inputStream_;
        public Worker(InputStream inputStream) {
            inputStream_ = inputStream;
        public void run() {
            if (getInputStream() != null) {
                try {
                    byte[] buffer = new byte[1024];
                    int read;
                    while(true) {
                        read = inputStream_.read(buffer);
                        if (read < 0)
                           break;
                catch(Exception ex) {
                    Handle the error some how. E.g. show the error box.
Process process = Runtime.getRuntime().exec(strCommand);
ProcessOutputWaster outputWaster = new ProcessOutputWaster(process);

Customize Java logging API

Want to customize java.util.logging api, like write message to message queue, xml file, etc. Would you guys give me some useful suggestion or resource or link? Thanks.

Just write a sub-class of Handler such as this:
public class JMSHandler extends Handler {
}Look into the JDK source code such as MemoryHandler and StreamHandler on how to implement it.

JarURL.openStream() throws *IOException: no entry name specified*

<pre>
I have some code (supplied below) which tries to read contents of a resource
referred by a URL.
public class URLTest {
public static void main(String... args) throws Exception {
URL u = new URL(args[0]);
InputStream is = u.openStream();
// more code goes here:
If you create a jar file in /tmp/b.jar and run this program as shown below:
(If your shell treats ! as a special char, then you need to use escape char \ before it)
java pkg.URLTest <b>jar:file:/tmp/b.jar!/</b>
it produces the following exception:
Exception in thread "main" java.io.IOException: no entry name specified
at sun.net.www.protocol.jar.JarURLConnection.getInputStream(JarURLConnection.java:131)
at java.net.URL.openStream(URL.java:1007)
at pkg.URLTest.main(URLTest.java:20)
But, if you pass the argument as jar:file:/tmp/b.jar!/A.class then it opens a stream
that points to A.class which is embedded inside b.jar.
My question is, what is the motivation behind not allowing user to open a stream to
jar:file:/tmp/b.jar!/ which according to the javadocs of JarURLConnection
http://java.sun.com/j2se/1.5.0/docs/api/java/net/JarURLConnection.html
represents a JAR File?
Thanks,
Sahoo
</pre>

I just also came across this. I don't know the motivation behind it. But it is certainly deliberate.
This is the source code for JarURLConnection.getInputStream.
public InputStream getInputStream() throws IOException {
     connect();
     InputStream result = null;
     if (entryName == null) {
          throw new IOException("no entry name specified");
     } else {
          if (jarEntry == null) {
               throw new FileNotFoundException("JAR entry " + entryName +
                    " not found in " +
                    jarFile.getName());
          result = new JarURLInputStream (jarFile.getInputStream(jarEntry));
     return result;
}So it will only let you get an InputStream to a file inside the Jar file, not the Jar file itself.
If you want to do that, then rather than using InputStreams you want to use the JarURLConnection class. My example below shows you how to get at the JarFile and its contents, JarEntry objects,
URL u = new URL("/tmp/b.jar!/");
JarURLConnection juc = (JarURLConnection)u.openConnection();
JarFile jf = juc.getJarFile();
System.out.println("JarFile: " + jf.getName());
Enumeration<JarEntry> entries = jf.entries();
for(JarEntry je = entries.nextElement(); entries.hasMoreElements(); je = entries.nextElement())
     System.out.println("\tJarEntry: " + je.getName());
}

REST API: Create Deployment throwing error BadRequest (The specified configuration settings for Settings are invalid. Verify that the service configuration file is a valid XML file, and that role instance counts are specified as positive integers.)

Hi All,
We are trying to access the Create Deployment method stated below
http://msdn.microsoft.com/en-us/library/windowsazure/ee460813
We have uploaded the Package in the blob and browsing the configuration file. We have checked trying to upload manually the package and config file in Azure portal and its working
fine.
Below is the code we have written for creating deployment where "AzureEcoystemCloudService" is our cloud service name where we want to deploy our package. I have also highlighted the XML creation
part.
byte[] bytes =
new byte[fupldConfig.PostedFile.ContentLength + 1];
            fupldConfig.PostedFile.InputStream.Read(bytes, 0, bytes.Length);
string a = Encoding.UTF8.GetString(bytes, 0, bytes.Length);
string base64ConfigurationFile = a.ToBase64();
X509Certificate2 certificate =
CertificateUtility.GetStoreCertificate(ConfigurationManager.AppSettings["thumbprint"].ToString());
HostedService.CreateNewDeployment(certificate,
ConfigurationManager.AppSettings["SubscriptionId"].ToString(),
"2012-03-01", "AzureEcoystemCloudService", Infosys.AzureEcosystem.Entities.Enums.DeploymentSlot.staging,
"AzureEcoystemDeployment",
"http://shubhendustorage.blob.core.windows.net/shubhendustorage/Infosys.AzureEcoystem.Web.cspkg",
"AzureEcoystemDeployment", base64ConfigurationFile,
true, false);
<summary>
/// </summary>
/// <param name="certificate"></param>
/// <param name="subscriptionId"></param>
/// <param name="version"></param>
/// <param name="serviceName"></param>
/// <param name="deploymentSlot"></param>
/// <param name="name"></param>
/// <param name="packageUrl"></param>
/// <param name="label"></param>
/// <param name="base64Configuration"></param>
/// <param name="startDeployment"></param>
/// <param name="treatWarningsAsError"></param>
public static
void CreateNewDeployment(X509Certificate2 certificate,
string subscriptionId,
string version, string serviceName, Infosys.AzureEcosystem.Entities.Enums.DeploymentSlot deploymentSlot,
string name, string packageUrl,
string label, string base64Configuration,
bool startDeployment, bool treatWarningsAsError)
Uri uri = new
Uri(String.Format(Constants.CreateDeploymentUrlTemplate, subscriptionId, serviceName, deploymentSlot.ToString()));
XNamespace wa = Constants.xmlNamespace;
XDocument requestBody =
new XDocument();
String base64ConfigurationFile = base64Configuration;
String base64Label = label.ToBase64();
XElement xName = new
XElement(wa + "Name", name);
XElement xPackageUrl =
new XElement(wa +
"PackageUrl", packageUrl);
XElement xLabel = new
XElement(wa + "Label", base64Label);
XElement xConfiguration =
new XElement(wa +
"Configuration", base64ConfigurationFile);
XElement xStartDeployment =
new XElement(wa +
"StartDeployment", startDeployment.ToString().ToLower());
XElement xTreatWarningsAsError =
new XElement(wa +
"TreatWarningsAsError", treatWarningsAsError.ToString().ToLower());
XElement createDeployment =
new XElement(wa +
"CreateDeployment");
            createDeployment.Add(xName);
            createDeployment.Add(xPackageUrl);
            createDeployment.Add(xLabel);
            createDeployment.Add(xConfiguration);
            createDeployment.Add(xStartDeployment);
            createDeployment.Add(xTreatWarningsAsError);
            requestBody.Add(createDeployment);
            requestBody.Declaration =
new XDeclaration("1.0",
"UTF-8", "no");
XDocument responseBody;
RestApiUtility.InvokeRequest(
                uri, Infosys.AzureEcosystem.Entities.Enums.RequestMethod.POST.ToString(),
HttpStatusCode.Accepted, requestBody, certificate, version,
out responseBody);
<summary>
/// A helper function to invoke a Service Management REST API operation.
/// Throws an ApplicationException on unexpected status code results.
/// </summary>
/// <param name="uri">The URI of the operation to invoke using a web request.</param>
/// <param name="method">The method of the web request, GET, PUT, POST, or DELETE.</param>
/// <param name="expectedCode">The expected status code.</param>
/// <param name="requestBody">The XML body to send with the web request. Use null to send no request body.</param>
/// <param name="responseBody">The XML body returned by the request, if any.</param>
/// <returns>The requestId returned by the operation.</returns>
public static
string InvokeRequest(
Uri uri,
string method,
HttpStatusCode expectedCode,
XDocument requestBody,
X509Certificate2 certificate,
string version,
out XDocument responseBody)
            responseBody =
null;
string requestId = String.Empty;
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(uri);
            request.Method = method;
            request.Headers.Add("x-ms-Version", version);
            request.ClientCertificates.Add(certificate);
            request.ContentType =
"application/xml";
if (requestBody != null)
using (Stream requestStream = request.GetRequestStream())
using (StreamWriter streamWriter =
new StreamWriter(
                        requestStream, System.Text.UTF8Encoding.UTF8))
                        requestBody.Save(streamWriter,
SaveOptions.DisableFormatting);
HttpWebResponse response;
HttpStatusCode statusCode =
HttpStatusCode.Unused;
try
response = (HttpWebResponse)request.GetResponse();
catch (WebException ex)
// GetResponse throws a WebException for 4XX and 5XX status codes
                response = (HttpWebResponse)ex.Response;
try
                statusCode = response.StatusCode;
if (response.ContentLength > 0)
using (XmlReader reader =
XmlReader.Create(response.GetResponseStream()))
                        responseBody =
XDocument.Load(reader);
if (response.Headers !=
null)
                    requestId = response.Headers["x-ms-request-id"];
finally
                response.Close();
if (!statusCode.Equals(expectedCode))
throw new
ApplicationException(string.Format(
"Call to {0} returned an error:{1}Status Code: {2} ({3}):{1}{4}",
                    uri.ToString(),
Environment.NewLine,
                    (int)statusCode,
                    statusCode,
                    responseBody.ToString(SaveOptions.OmitDuplicateNamespaces)));
return requestId;
But every time we are getting the below error from the line
response = (HttpWebResponse)request.GetResponse();
<Error xmlns="http://schemas.microsoft.com/windowsazure" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
<Code>BadRequest</Code>
<Message>The specified configuration settings for Settings are invalid. Verify that the service configuration file is a valid XML file, and that role instance counts are specified as positive integers.</Message>
</Error>
Any help is appreciated.
Thanks,
Shubhendu

Please find the request XML I have found it in debug mode
<CreateDeployment xmlns="http://schemas.microsoft.com/windowsazure">
<Name>742d0a5e-2a5d-4bd0-b4ac-dc9fa0d69610</Name>
<PackageUrl>http://shubhendustorage.blob.core.windows.net/shubhendustorage/WindowsAzure1.cspkg</PackageUrl>
<Label>QXp1cmVFY295c3RlbURlcGxveW1lbnQ=</Label>
<Configuration>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</Configuration>
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<TreatWarningsAsError>false</TreatWarningsAsError>
</CreateDeployment>
Shubhendu G

On Windows 7 HttpURLConnection.openConnection() throws IOException

Hi Team,
In our application we have a to create httpURLCOnnection (url.openConnection())which works fine on Windows XP but throws IOException on Windows7. Does anybody know which settings need to be enabled on windows 7 to resolve this issue?
Any response would be appreciated. Thanks in Advance.

Hello Team,
I have a specific exception which I get when trying to open a url on Windows 7 with IIS authentication enabled. We get exception when trying to get response code of HTTP Connection
java.io.IOException: Authentication failure
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at java.net.HttpURLConnection.getResponseCode(Unknown Source)
Same code works find on windows XP. Do I need to do any specific settings on Windows7 to work this?
Thanks in Advance.

DOMparser throws IOException when encounters Hungarian Characters

Hoi!
I wrote a piece of code that extracts some
information from an XML document into a vector of Java classes, using the oracle.xml.parser.v2.DOMParser.
And it worked. Or seemed to work...
But when I put some articles in the XML file
in Hungarian, the parser threw IOException.
If I remplace the Hungarian characters to
English "equivalents" a -> a etc., it works.
I don't know. If XML is made up of Unicode characters, what's the problem with it?
(The hex code of a was E1 in my text editor,
as I'm using Win NT :(. )
can I modify the xml prolog somehow?
I'd rather not write a conversion program
from a text file to another.
Any ideas?
and here's the code:
DOMParser theParser = new DOMParser();
XMLStreamToParse = XMLes.class.getResourceAsStream(xmlDocPath);
theParser.setValidationMode(false);
try{
theParser.parse( XMLStreamToParse );
//this throws IOException
null

What are you using as your test client?The test client is WebStone 1.0. WebStone always downloads the whole response, and reports the size of the response in bytes. From this I can see that when the IO exception occurs, webstone is unable to read the whole response, as it reports a smaller size.
So, I do not think the problem is that the client has prematurely aborted its download. WebStone doesn't work that way. I think something has gone awry on the server side, and this worries me.

Practical use of Java Logging API

There was a recent technical tip about the Java Logging API, but after reading it I still don't understand how to use it in a real situation.
Can anyone help me with this with a practical example?
At the moment I have try-catch clauses that catch exceptions and print a message in a System.err log that I can consult if there's a specific problem.
How should I be using the Logging API? I feel sure that it can help me, but can't see how.
Thanks for any practical information.

What if you don't want to write to system.err anymore? What if you need to write something to the windows event log? What if system.err is irrelevant (nt service), ...
Btw, lots of examples on the JDK1.4 logging api:
http://www.esus.com/docs/GetIndexPage.jsp?uid=265

How to set NC Log API

Hi all,
I want to use the following NC log API,but I don't know how to initialize the interface's java object and set the parameter "ApplicationVO".
Interface LogNCApplicationInterface
Method ApplicationVO addNDone(ApplicationVO applicationvo)
Please help me.Thank you!
Qiang Liu

if you just need to log an NC the minimum fields you need to set are the following:
CreateNCRequest ncRequest = new CreateNCRequest();
ncRequest.setActivity("NC500"); // activity where NC is logged - can be any name
ncRequest.setSfcRef(new SFCBOHandle(site, sfcParent).toString());// the SFC for which you are reporting an NC
// ncRequest.setValidateNCCodeOperation(true); // no need to set it, it's true by default
// nc code reference for nc code that is reported
// nc code must exist in the system
ncRequest.setNcCodeRef(new NCCodeBOHandle(site,"NCCODE").toString());
// required custom fields must be set
CreateNCResponse ncResponse = ncPSI.createNC(ncRequest);

Setting Logging API config file

Hi,
Is there a way I can set the Logging API's config file (java.util.logging.config.file) from within my program? I have tried using System.setProperty but it doesn't seem to work. The only way I seem to be able to set the property is with -D on the command line.
Thanks
Rob

Is there a way I can set the Logging API's config file (java.util.logging.config.file) from within my program? I have tried using System.setProperty but it doesn't seem to work. The only way I seem to be able to set the property is with -D on the command line.Read the Logging Overview Dokumentation
anyway
InputStream inputStream = new FileInputStream("logging.properties");
LogManager.getLogManager().readConfiguration(inputStream);
...

Logging API AdapterFramework 3.0

Hello,
i still wonder why it was necessary to provide an own API for Logging and Tracing inside the Adapter Framework.
The Web AS Logging API does the same.
Developing an JCA Adapter that can be used inside the XI Adapter Framework and as a Basic JCA 1.0 Adapter in the Web AS, theres's need to provide support for both APIs.
Has anyone an idea to solve this problem?

There is a lot of logging to the console with 2.3.0 RC1 when I am doing
any trips to the datastore, is it possible to switch this off? I am
using Kodo.rar in Jboss 3.0.0Remove the 'com.solarmetric.kodo.Logger' property from your properties file. You can also remove it from the Properties instance you use to construct the PersistenceManagerFactory. If you'd like to log to a file instead, change the property to the name of a file to log to.

Forum help for Logging api

I need help with logging api. Which developer forum do I have to use for the same. Thanks.

Have you got the SAP Wrapper for logging API? if you got, can you give it to me:)

Log API: StreamHandler.flush() throws IOException ?

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