- /*
- * Copyright 1999-2004 The Apache Software Foundation.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- /*
- * $Id: DefaultErrorHandler.java,v 1.15 2004/02/17 04:21:14 minchau Exp $
- */
- package com.sun.org.apache.xml.internal.utils;
-
- import java.io.PrintStream;
- import java.io.PrintWriter;
-
- import javax.xml.transform.ErrorListener;
- import javax.xml.transform.SourceLocator;
- import javax.xml.transform.TransformerException;
-
- import com.sun.org.apache.xml.internal.res.XMLErrorResources;
- import com.sun.org.apache.xml.internal.res.XMLMessages;
-
- import org.xml.sax.ErrorHandler;
- import org.xml.sax.SAXException;
- import org.xml.sax.SAXParseException;
-
-
- /**
- * Implement SAX error handler for default reporting.
- * @xsl.usage general
- */
- public class DefaultErrorHandler implements ErrorHandler, ErrorListener
- {
- PrintWriter m_pw;
-
- /**
- * Constructor DefaultErrorHandler
- */
- public DefaultErrorHandler(PrintWriter pw)
- {
- m_pw = pw;
- }
-
- /**
- * Constructor DefaultErrorHandler
- */
- public DefaultErrorHandler(PrintStream pw)
- {
- m_pw = new PrintWriter(pw, true);
- }
-
- /**
- * Constructor DefaultErrorHandler
- */
- public DefaultErrorHandler()
- {
- m_pw = new PrintWriter(System.err, true);
- }
-
-
- /**
- * Receive notification of a warning.
- *
- * <p>SAX parsers will use this method to report conditions that
- * are not errors or fatal errors as defined by the XML 1.0
- * recommendation. The default behaviour is to take no action.</p>
- *
- * <p>The SAX parser must continue to provide normal parsing events
- * after invoking this method: it should still be possible for the
- * application to process the document through to the end.</p>
- *
- * @param exception The warning information encapsulated in a
- * SAX parse exception.
- * @throws SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- public void warning(SAXParseException exception) throws SAXException
- {
- printLocation(m_pw, exception);
- m_pw.println("Parser warning: " + exception.getMessage());
- }
-
- /**
- * Receive notification of a recoverable error.
- *
- * <p>This corresponds to the definition of "error" in section 1.2
- * of the W3C XML 1.0 Recommendation. For example, a validating
- * parser would use this callback to report the violation of a
- * validity constraint. The default behaviour is to take no
- * action.</p>
- *
- * <p>The SAX parser must continue to provide normal parsing events
- * after invoking this method: it should still be possible for the
- * application to process the document through to the end. If the
- * application cannot do so, then the parser should report a fatal
- * error even if the XML 1.0 recommendation does not require it to
- * do so.</p>
- *
- * @param exception The error information encapsulated in a
- * SAX parse exception.
- * @throws SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- public void error(SAXParseException exception) throws SAXException
- {
- //printLocation(exception);
- // m_pw.println(exception.getMessage());
-
- throw exception;
- }
-
- /**
- * Receive notification of a non-recoverable error.
- *
- * <p>This corresponds to the definition of "fatal error" in
- * section 1.2 of the W3C XML 1.0 Recommendation. For example, a
- * parser would use this callback to report the violation of a
- * well-formedness constraint.</p>
- *
- * <p>The application must assume that the document is unusable
- * after the parser has invoked this method, and should continue
- * (if at all) only for the sake of collecting addition error
- * messages: in fact, SAX parsers are free to stop reporting any
- * other events once this method has been invoked.</p>
- *
- * @param exception The error information encapsulated in a
- * SAX parse exception.
- * @throws SAXException Any SAX exception, possibly
- * wrapping another exception.
- */
- public void fatalError(SAXParseException exception) throws SAXException
- {
- // printLocation(exception);
- // m_pw.println(exception.getMessage());
-
- throw exception;
- }
-
- /**
- * Receive notification of a warning.
- *
- * <p>SAX parsers will use this method to report conditions that
- * are not errors or fatal errors as defined by the XML 1.0
- * recommendation. The default behaviour is to take no action.</p>
- *
- * <p>The SAX parser must continue to provide normal parsing events
- * after invoking this method: it should still be possible for the
- * application to process the document through to the end.</p>
- *
- * @param exception The warning information encapsulated in a
- * SAX parse exception.
- * @throws javax.xml.transform.TransformerException Any SAX exception, possibly
- * wrapping another exception.
- * @see javax.xml.transform.TransformerException
- */
- public void warning(TransformerException exception) throws TransformerException
- {
- printLocation(m_pw, exception);
-
- m_pw.println(exception.getMessage());
- }
-
- /**
- * Receive notification of a recoverable error.
- *
- * <p>This corresponds to the definition of "error" in section 1.2
- * of the W3C XML 1.0 Recommendation. For example, a validating
- * parser would use this callback to report the violation of a
- * validity constraint. The default behaviour is to take no
- * action.</p>
- *
- * <p>The SAX parser must continue to provide normal parsing events
- * after invoking this method: it should still be possible for the
- * application to process the document through to the end. If the
- * application cannot do so, then the parser should report a fatal
- * error even if the XML 1.0 recommendation does not require it to
- * do so.</p>
- *
- * @param exception The error information encapsulated in a
- * SAX parse exception.
- * @throws javax.xml.transform.TransformerException Any SAX exception, possibly
- * wrapping another exception.
- * @see javax.xml.transform.TransformerException
- */
- public void error(TransformerException exception) throws TransformerException
- {
- // printLocation(exception);
- // ensureLocationSet(exception);
-
- printLocation(m_pw, exception);
- m_pw.println(exception.getMessage());
-
- //throw exception;
- }
-
- /**
- * Receive notification of a non-recoverable error.
- *
- * <p>This corresponds to the definition of "fatal error" in
- * section 1.2 of the W3C XML 1.0 Recommendation. For example, a
- * parser would use this callback to report the violation of a
- * well-formedness constraint.</p>
- *
- * <p>The application must assume that the document is unusable
- * after the parser has invoked this method, and should continue
- * (if at all) only for the sake of collecting addition error
- * messages: in fact, SAX parsers are free to stop reporting any
- * other events once this method has been invoked.</p>
- *
- * @param exception The error information encapsulated in a
- * SAX parse exception.
- * @throws javax.xml.transform.TransformerException Any SAX exception, possibly
- * wrapping another exception.
- * @see javax.xml.transform.TransformerException
- */
- public void fatalError(TransformerException exception) throws TransformerException
- {
- // printLocation(exception);
- // ensureLocationSet(exception);
-
- throw exception;
- }
-
- public static void ensureLocationSet(TransformerException exception)
- {
- // SourceLocator locator = exception.getLocator();
- SourceLocator locator = null;
- Throwable cause = exception;
-
- // Try to find the locator closest to the cause.
- do
- {
- if(cause instanceof SAXParseException)
- {
- locator = new SAXSourceLocator((SAXParseException)cause);
- }
- else if (cause instanceof TransformerException)
- {
- SourceLocator causeLocator = ((TransformerException)cause).getLocator();
- if(null != causeLocator)
- locator = causeLocator;
- }
-
- if(cause instanceof TransformerException)
- cause = ((TransformerException)cause).getCause();
- else if(cause instanceof SAXException)
- cause = ((SAXException)cause).getException();
- else
- cause = null;
- }
- while(null != cause);
-
- exception.setLocator(locator);
- }
-
- public static void printLocation(PrintStream pw, TransformerException exception)
- {
- printLocation(new PrintWriter(pw), exception);
- }
-
- public static void printLocation(java.io.PrintStream pw, org.xml.sax.SAXParseException exception)
- {
- printLocation(new PrintWriter(pw), exception);
- }
-
- public static void printLocation(PrintWriter pw, Throwable exception)
- {
- SourceLocator locator = null;
- Throwable cause = exception;
-
- // Try to find the locator closest to the cause.
- do
- {
- if(cause instanceof SAXParseException)
- {
- locator = new SAXSourceLocator((SAXParseException)cause);
- }
- else if (cause instanceof TransformerException)
- {
- SourceLocator causeLocator = ((TransformerException)cause).getLocator();
- if(null != causeLocator)
- locator = causeLocator;
- }
- if(cause instanceof TransformerException)
- cause = ((TransformerException)cause).getCause();
- else if(cause instanceof WrappedRuntimeException)
- cause = ((WrappedRuntimeException)cause).getException();
- else if(cause instanceof SAXException)
- cause = ((SAXException)cause).getException();
- else
- cause = null;
- }
- while(null != cause);
-
- if(null != locator)
- {
- // m_pw.println("Parser fatal error: "+exception.getMessage());
- String id = (null != locator.getPublicId() )
- ? locator.getPublicId()
- : (null != locator.getSystemId())
- ? locator.getSystemId() : XMLMessages.createXMLMessage(XMLErrorResources.ER_SYSTEMID_UNKNOWN, null); //"SystemId Unknown";
-
- pw.print(id + "; " +XMLMessages.createXMLMessage("line", null) + locator.getLineNumber()
- + "; " +XMLMessages.createXMLMessage("column", null) + locator.getColumnNumber()+"; ");
- }
- else
- pw.print("("+XMLMessages.createXMLMessage(XMLErrorResources.ER_LOCATION_UNKNOWN, null)+")");
- }
- }