Trying to use XML SAX parser with JDK2 ...

Hi,
I'm pretty new to Java.
I'm trying to write and use java sample using XML SAX parser. I try with XP and XML4J.
Each time I compile it give me a error message like
"SAX01.java:23: unreported exception java.lang.Exception; must be caught or declared to be
thrown
(new SAX01()).countBooks();
^
Note: SAX01.java uses or overrides a deprecated API.
Note: Recompile with -deprecation for details.
1 error"
For what I found, it seems that "deprecated" mean usage of old classes or methods. What should I do ?
Wait for the XML parser to be rewrite ? ....
Thank's
Constant

"SAX01.java:23: unreported exception
java.lang.Exception; must be caught or declared to be
thrown
(new SAX01()).countBooks();
^Do this
public static void main(String[] args) throws Exception {
or do this
     try
                   first part of expression?(new SAX0()).countBooks();
     catch(Exception ex)
          System.out.println("problem "+ ex);
Note: SAX01.java uses or overrides a deprecated API.
Note: Recompile with -deprecation for details.
1 error"deprecation is just a warning if there are no errors elsewhere in your program it should compile fine, but if you want to find out how to change it do this:
javac YourClassName.java -deprecation
then look in the docs for an alternative.

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Repost

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4 'package com.oracle.st.xmldb.pm.examples;
5
6
7 import java.io.IOException;
8 import java.io.StringWriter;
9
10 import java.io.Writer;
11
12 import java.sql.DriverManager;
13 import java.sql.SQLException;
14
15 import java.util.Enumeration;
16 import java.util.Hashtable;
17
18 import oracle.jdbc.OracleConnection;
19 import oracle.jdbc.OracleDriver;
20
21 import oracle.jdbc.OraclePreparedStatement;
22
23 import oracle.sql.BFILE;
24
25 import oracle.sql.CLOB;
26
27 import oracle.xml.parser.v2.SAXParser;
28 import oracle.xml.parser.v2.XMLDocument;
29 import oracle.xml.parser.v2.XMLElement;
30
31
32 import org.w3c.dom.Attr;
33 import org.w3c.dom.Element;
34 import org.w3c.dom.Node;
35
36 import org.xml.sax.Attributes;
37 import org.xml.sax.ContentHandler;
38 import org.xml.sax.Locator;
39 import org.xml.sax.SAXException;
40
41 public class SaxProcessor implements ContentHandler {
42
43      public static final boolean DEBUG = true;
44
45      private OracleConnection dbConnection;
46
47      private OraclePreparedStatement insertStatement;
48      private OraclePreparedStatement errorStatement;
49      private CLOB clob;
50
51      private Hashtable namespaceToPrefix = null;
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53      private String targetElementName = null;
54
55      private XMLDocument currentDocument;
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57
58      private int documentCount = 0;
59
60      public SaxProcessor() {
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64
65      private boolean isTargetElement(String elementName) {
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70      public void startDocument() throws SAXException {
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72
73      public void endDocument() throws SAXException {
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75
76      public void startElement(String namespaceURI, String localName, String elementName, Attributes attrs)
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85                  System.out.println("startElement() : Checking for start of Fragment.");
86              }
87              if (isTargetElement(localName))
88              {
89                  if (DEBUG) {
90                      System.out.println("startElement() : Starting New Document");
91                  }
92                  this.currentDocument = new XMLDocument();
93                  this.currentNode = this.currentDocument;
94                  XMLElement rootElement = createNewElement(namespaceURI, localName, elementName, attrs);
95                  this.currentDocument.appendChild(rootElement);
96                  this.currentNode = rootElement;
97              }
98          }
99          else
100          {
101             XMLElement nextElement = createNewElement(namespaceURI, localName, elementName, attrs);
102             this.currentNode.appendChild(nextElement);
103             this.currentNode = nextElement;
104          }
105      }
106
107      public void endElement(String namespaceURI, String localName, String qName)
108      throws SAXException
109      {
110          if (this.currentDocument != null)
111          {
112              if (this.currentNode.equals(this.currentDocument.getDocumentElement()))
113              {
114                  try
115                  {
116                    insertDocument();
117                    this.currentDocument = null;
118                  }
119                  catch (SQLException sqlE)
120                  {
121                      throw new SAXException(sqlE);
122                  }
123                  catch (IOException ioe)
124                  {
125                      throw new SAXException(ioe);
126                  }
127              }
128              else
129              {
130                  this.currentNode = this.currentNode.getParentNode();
131              }
132          }
133      }
134
135      private XMLElement createNewElement(String namespaceURI, String localName,
136                                          String elementName, Attributes attrs) {
137          XMLElement newElement = null;
138          if (namespaceURI != null) {
139              if (this.namespaceToPrefix.containsKey(namespaceURI)) {
140                  /* Namespace in already in Scope - create Element from Qualified Name */
141                  newElement =
142                      (XMLElement)this.currentDocument.createElement(elementName);
143              } else {
144                  /* Namespace is not already in Scope - create Element with namespace */
145                  newElement =
146                      (XMLElement) this.currentDocument.createElementNS(namespaceURI,
147                                                                                elementName);
148                  newElement.setPrefix((String)this.namespaceToPrefix.get(namespaceURI));
149              }
150          } else {
151              newElement =
152                  (XMLElement)this.currentDocument.createElement(localName);
153          }
154          addAttributes(newElement, attrs);
155          if (this.currentNode.equals(this.currentDocument)) {
156              addNamespaceDeclarations(newElement);
157          }
158          return newElement;
159      }
160
161      private void addAttributes(Element element, Attributes attrs) {
162          for (int i = 0; i < attrs.getLength(); i++) {
163              if (attrs.getURI(i).equals("http://www.w3.org/2000/xmlns/")) {
164              } else {
165                  element.setAttribute(attrs.getQName(i), attrs.getValue(i));
166              }
167          }
168      }
169
170      private void addNamespaceDeclarations(Element element) {
171          Enumeration keys = this.namespaceToPrefix.keys();
172          while (keys.hasMoreElements()) {
173              String namespace = (String)keys.nextElement();
174              String prefix = (String)namespaceToPrefix.get(namespace);
175              Attr attr = null;
176              if (prefix.equals("")) {
177                  attr = this.currentDocument.createAttribute("xmlns");
178                  attr.setValue(namespace);
179                  element.setAttributeNode(attr);
180              } else {
181                  if (!prefix.equals(element.getPrefix())) {
182                      attr =
183                          this.currentDocument.createAttribute("xmlns:" + prefix);
184                      attr.setValue(namespace);
185                      element.setAttributeNode(attr);
186                  }
187              }
188          }
189      }
190
191      public void characters(char[] p0, int p1, int p2) throws SAXException {
192          if (this.currentDocument != null) {
193              StringWriter sw = new StringWriter();
194              sw.write(p0, p1, p2);
195              String value = sw.toString();
196              Node textNode = this.currentDocument.createTextNode(value);
197              this.currentNode.appendChild(textNode);
198          }
199      }
200
201      public void startPrefixMapping(String prefix,
202                                     String uri) throws SAXException {
203          this.namespaceToPrefix.put(uri, prefix);
204          this.prefixToNamespace.put(prefix, uri);
205      }
206
207      public void endPrefixMapping(String prefix) throws SAXException {
208          Enumeration e = prefixToNamespace.keys();
209          while (e.hasMoreElements()) {
210              String thisPrefix = (String)e.nextElement();
211              if (thisPrefix.equals(prefix)) {
212                  String namespace =
213                      (String)prefixToNamespace.remove(thisPrefix);
214                  namespaceToPrefix.remove(namespace);
215              }
216          }
217      }
218
219      public void ignorableWhitespace(char[] p0, int p1,
220                                      int p2) throws SAXException {
221          // throw new SAXException ("Un-Implemented Method: ingnoreableWhitespace");
222      }
223
224      public void processingInstruction(String p0,
225                                        String p1) throws SAXException {
226          throw new SAXException("Un-Implemented Method: processingInstruction");
227      }
228
229      public void setDocumentLocator(Locator p0) {
230          // throw new SAXException ("Un-Implemented Method: setDocumentLocator");
231      }
232
233      public void skippedEntity(String p0) throws SAXException {
234          throw new SAXException("Un-Implemented Method: skippedEntity");
235      }
236
237      public void doParse(BFILE bfile, String targetElement,
238                             String targetTable, String errorTable) throws Exception {
239              this.targetElementName = targetElement;
240              String insertStatementText =
241                  "insert into " + targetTable + " values (xmlParse(DOCUMENT ? WELLFORMED))";
242              String errorStatementText =
243                  "insert into " + errorTable + " values (xmlParse(DOCUMENT ? WELLFORMED))";
244
245              DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
246              OracleDriver ora = new OracleDriver();
247              this.dbConnection = (OracleConnection)ora.defaultConnection();
248
249              this.insertStatement =
250                  (OraclePreparedStatement)this.dbConnection.prepareStatement(insertStatementText);
251              this.errorStatement =
252                  (OraclePreparedStatement)this.dbConnection.prepareStatement(errorStatementText);
253
254              this.clob =
255                  CLOB.createTemporary(this.dbConnection, true, CLOB.DURATION_SESSION);
256
257              SAXParser parser = new SAXParser();
258              parser.setAttribute(SAXParser.STANDALONE, Boolean.valueOf(true));
259              parser.setValidationMode(SAXParser.NONVALIDATING);
260              parser.setContentHandler(this);
261              bfile.openFile();
262              parser.parse(bfile.getBinaryStream());
263              bfile.closeFile();
264              this.insertStatement.close();
265              this.errorStatement.close();
266      }
267
268      private void insertDocument() throws SQLException, IOException {
269          this.clob.truncate(0);
270          Writer out = clob.setCharacterStream(0);
271          this.currentDocument.print(out);
272          out.close();
273
274          this.insertStatement.setClob(1, clob);
275          this.insertStatement.execute();
276
277          this.documentCount++;
278
279          if (DEBUG) {
280              System.out.println("insertDocument() : Document Inserted");
281          }
282      }
283
284      public static int parseBFile(BFILE bfile, String targetElement,
285                             String targetTable, String errorTable) throws Exception {
286          try {
287            SaxProcessor processor = new SaxProcessor();
288            processor.doParse(bfile,targetElement,targetTable,errorTable);
289            return processor.documentCount;
290          }
291          catch (Exception e) {
292            e.printStackTrace(System.out);
293            throw e;
294          }
295
296      }
297 }
298 ';
299 begin
300    if dbms_xdb.existsResource(:targetPath) then
301      dbms_xdb.deleteResource(:targetPath);
302    end if;
303    res := dbms_xdb.createResource(:targetPath,javaSource);
304 end;
305 /
Queuing DELETE Event
PL/SQL procedure successfully completed.
SQL> --
SQL> set define on
SQL> --
SQL> create or replace and resolve java source
2 named "&MODULE"
3 using blob
4 (
5 select xdburiType('/public/JavaSource.java').getBlob(nls_charset_id('WE8ISO8859P1'))
6 from dual
7 )
8 /
old   2: named "&MODULE"
new   2: named "SaxProcessor"
Java created.
SQL> show errors
No errors.
SQL> --
SQL> declare
2    shortname varchar2(128);
3 begin
4    shortname := dbms_java.shortname('&CLASS');
5    execute immediate 'grant execute on "' || shortname || '" to public';
6 end;
7 /
old   4:   shortname := dbms_java.shortname('&CLASS');
new   4:   shortname := dbms_java.shortname('com/oracle/st/xmldb/pm/examples/SaxProcessor');
PL/SQL procedure successfully completed.
SQL> create or replace package SAX_PROCESSOR
2 as
3    procedure PARSE_BFILE(file BFILE, targetElement varchar2, targetTable varchar2, errorTable varchar2);
4 end;
5 /
Package created.
SQL> show errors
No errors.
SQL> --
SQL> create or replace package body SAX_PROCESSOR
2 as
3 --
4 procedure PARSE_BFILE(file BFILE, targetElement varchar2, targetTable varchar2, errorTable varchar2)
5 AS LANGUAGE JAVA
6     NAME 'com.oracle.st.xmldb.pm.examples.SaxProcessor.parseBFile( oracle.sql.BFILE, java.lang.String, java.lang.String, java.lang.Strin
g)';
7 end;
8 /
Package body created.
SQL> show errors
No errors.
SQL> --
SQL> drop table PO_TEST
2 /
Table dropped.
SQL> create table PO_TEST of XMLTYPE
2 /
Table created.
SQL> drop table PO_ERROR
2 /
Table dropped.
SQL> create table PO_ERROR of XMLTYPE
2 /
Table created.
SQL> create or replace directory xmldir as 'c:\temp'
2 /
Directory created.
SQL> set serveroutput on
SQL> --
SQL> call SAX_PROCESSOR.PARSE_BFILE(bfilename('XMLDIR','testcase.xml'),'PurchaseOrder','PO_TEST','PO_ERROR')
2 /
call SAX_PROCESSOR.PARSE_BFILE(bfilename('XMLDIR','testcase.xml'),'PurchaseOrder','PO_TEST','PO_ERROR')
ERROR at line 1:
ORA-29549: class XFILES.com/oracle/st/xmldb/pm/examples/SaxProcessor has
changed, Java session state cleared
SQL> call SAX_PROCESSOR.PARSE_BFILE(bfilename('XMLDIR','testcase.xml'),'PurchaseOrder','PO_TEST','PO_ERROR')
2 /
Call completed.
SQL> select count(*) from PO_TEST
2 /
         3
SQL> select * from PO_TEST
2 /
<PurchaseOrder xsi:noNamespaceSchemaLocation="http://xfiles:8080/home/SCOTT/poSo
urce/xsd/purchaseOrder.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance
">
<Reference>AMCEWEN-20030409123336271PDT</Reference>
<Actions>
    <Action>
      <User>KPARTNER</User>
    </Action>
</Actions>
<Reject/>
<Requestor>Allan D. McEwen</Requestor>
<User>AMCEWEN</User>
<PurchaseOrder xsi:noNamespaceSchemaLocation="http://xfiles:8080/home/SCOTT/poSo
urce/xsd/purchaseOrder.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance
">
<Reference>SKING-20030409123336321PDT</Reference>
<Actions>
    <Action>
      <User>SKING</User>
    </Action>
</Actions>
<Reject/>
<Requestor>Steven A. King</Requestor>
<User>SKING</User>
<PurchaseOrder xsi:noNamespaceSchemaLocation="http://xfiles:8080/home/SCOTT/poSo
urce/xsd/purchaseOrder.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance
">
<Reference>SMCCAIN-20030409120030451PDT</Reference>
<Actions>
    <Action>
      <User>SVOLLMAN</User>
    </Action>
</Actions>
<Reject/>
<Requestor>Samuel B. McCain</Requestor>
<User>SMCCAIN</User>
SQL>

Error java.lang.OutOfMemoryError using XML DOM parser

Hi everyone,
We are using Oracle 8.1.7 on Windows NT and trying to load XML into Oracle using the DOM API through PL/SQL. This is the method provided in the ORACLE_HOME\ora817\xdk\plsql\demo\domsample.sql which uses the XMLPARSER and XMLDOM PL/SQL packages.
Now this works fine with small files (not sure about the exact file size). But for big files, it gives an error,
ORA-29554: unhandled Java out of memory condition
ORA-29532: Java call terminated by uncaught Java exception: java.lang.OutOfMemoryError
We have increased the JAVA_POOL_SIZE from the default 20MB to 50MB. Not sure whether increasing this value will solve our problem and whether it is advisable to increase it to a higher value. Can anyone help, please ???
Thanks.

Steve,
Thanks for the response. Now we are getting different error. In one of the questions earlier posted, someone (I think Jon) noted that following error (the one we are getting) can be resolved by using JDK 1.1.8, is there any specific JDK pre-req for XML Parser 0.9.8.6?
Is it possible, to enhance release notes for 0.9.8.6 to include
a) Tips mentioned in your mail (i.e. putting oracle xml parser 2.0.x before Apache/OJSP xmlparserv2.jar
b) Dependencies on specific version of JDK
Once again thanks for the responding to the mail and will appreciate a help to resolve this current error.
Thanks,
Shree
Actual error :
java.lang.IllegalArgumentException: sun.io.CharToB
yteUTF-8
at sun.io.CharToByteConverter.getConverterClass(Compiled Code)
at sun.io.CharToByteConverter.getConverter(Compiled Code)
at java.io.OutputStreamWriter.<init>(Compiled Code)
at org.apache.jserv.JServConnection.getWriter(Compiled Code)
at oracle.xml.xsql.XSQLServletPageRequest.setupWriter(Compiled Code)
at oracle.xml.xsql.XSQLServletPageRequest.setContentType(Compiled Code)
at oracle.xml.xsql.XSQLPageProcessor.process(Compiled Code)
at oracle.xml.xsql.XSQLServlet.doGet(Compiled Code)
at javax.servlet.http.HttpServlet.service(Compiled Code)
at javax.servlet.http.HttpServlet.service(Compiled Code)
at org.apache.jserv.JServConnection.processRequest(Compiled Code)
at org.apache.jserv.JServConnection.run(Compiled Code)
at java.lang.Thread.run(Compiled Code)
null

Org.xml.sax.SAXParseException with XML Report Publish

Anyone see the following error in XML Report Publisher? This happened after I ran Employee W2 XML Interface and ran XML Report Publisher for the output of the PDF output.
--XDOException
java.lang.reflect.InvocationTargetException
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at oracle.apps.xdo.common.xml.XSLT10gR1.invokeParse(XSLT10gR1.java:570)
     at oracle.apps.xdo.common.xml.XSLT10gR1.transform(XSLT10gR1.java:235)
     at oracle.apps.xdo.common.xml.XSLTWrapper.transform(XSLTWrapper.java:182)
     at oracle.apps.xdo.template.fo.util.FOUtility.generateFO(FOUtility.java:1044)
     at oracle.apps.xdo.template.fo.util.FOUtility.generateFO(FOUtility.java:997)
     at oracle.apps.xdo.template.fo.util.FOUtility.generateFO(FOUtility.java:212)
     at oracle.apps.xdo.template.FOProcessor.createFO(FOProcessor.java:1665)
     at oracle.apps.xdo.template.FOProcessor.generate(FOProcessor.java:975)
     at oracle.apps.xdo.oa.schema.server.TemplateHelper.runProcessTemplate(TemplateHelper.java:5936)
     at oracle.apps.xdo.oa.schema.server.TemplateHelper.processTemplate(TemplateHelper.java:3459)
     at oracle.apps.xdo.oa.schema.server.TemplateHelper.processTemplate(TemplateHelper.java:3548)
     at oracle.apps.xdo.oa.cp.JCP4XMLPublisher.runProgram(JCP4XMLPublisher.java:684)
     at oracle.apps.fnd.cp.request.Run.main(Run.java:157)
Caused by: org.xml.sax.SAXParseException: <Line 268, Column 6>: XML-20109: (Fatal Error) PI with the name 'xml' can occur only in the beginning of the document.
     at oracle.xdo.parser.v2.XMLError.flushErrorHandler(XMLError.java:441)
     at oracle.xdo.parser.v2.XMLError.flushErrors1(XMLError.java:303)
     at oracle.xdo.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:305)
     at oracle.xdo.parser.v2.XMLParser.parse(XMLParser.java:289)
     ... 17 more
Thanks.

We are going to user Employee W-2 PDF.

XML - SAX Parsing Question

Hi,
I am parsing XML using SAX parser and fill the values into the HashTable ( like Key value pair ).. so i can get the vaues for a particular key using hash get function.
For the following XML. There are 2 "subscriberNumber" attribute, one is under "sn:Subscriber" and the another is under "sn:SubscriberChange".
I can able to put this values in hash table and when i print the Hash table it is printing as sn:subscriberNumber=[1234567890, 1234567890] .. But how will i know which one is from "sn:Subscriber" and which is from "sn:SubscriberChange"
This is the XML :
<sn:SubscriberNotification>
<sn:notificationSubType>1120</sn:notificationSubType>
<sn:Subscriber>
     <cng:PaymentType>PostPaid</cng:PaymentType>
     <sn:subscriberNumber>1234567890</sn:subscriberNumber>
</sn:Subscriber>
<sn:SubscriberChange>
     <sn:subscriberNumber>1234567890</sn:subscriberNumber>
</sn:SubscriberChange>
</sn:SubscriberNotification>
Any suggestion and pointers are really helpful
Thanks,
-Raj..

Try something like this:
import java.util.Stack;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
class MyHandler extends DefaultHandler {
    Stack openTags = new Stack();
    public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
        if (qName.equals("sn:subscriberNumber")) {
            String parentTag = (String)openTags.peek();
            System.out.println("Parent tag of this <sn:subscriberNumber> is : <" + parentTag + ">");
        openTags.push(qName);
    public void endElement(String uri, String localName, String qName) throws SAXException {
        openTags.pop();
}Regards

Trying to use XML SAX parser with JDK2 ...

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