/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.ode.bpel.elang.xpath10.compiler;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ode.bpel.compiler.api.CompilationException;
import org.apache.ode.bpel.compiler.api.CompilationMessage;
import org.apache.ode.bpel.compiler.api.CompilerContext;
import org.apache.ode.bpel.compiler.api.SourceLocation;
import javax.xml.transform.ErrorListener;
import javax.xml.transform.TransformerException;
/**
* Reports errors that occured during Xsl sheets processing. This implementation isn't
* built to be thread safe in case multiple compilations occur parrallely, however
* this shouldn't occur.
*/
public class XslCompilationErrorListener implements ErrorListener {
private static final Log __log = LogFactory.getLog(XslCompilationErrorListener.class);
private CompilerContext _cc;
public XslCompilationErrorListener(CompilerContext cc) {
_cc = cc;
}
public void warning(TransformerException exception) throws TransformerException {
if (__log.isWarnEnabled()) {
__log.warn(exception);
}
recover(CompilationMessage.WARN, exception);
}
public void error(TransformerException exception) throws TransformerException {
if (__log.isErrorEnabled()) {
__log.error(exception);
}
recover(CompilationMessage.ERROR, exception);
throw exception;
}
public void fatalError(TransformerException exception) throws TransformerException {
if (__log.isFatalEnabled()) {
__log.fatal(exception);
}
recover(CompilationMessage.ERROR, exception);
throw exception;
}
// If somebody has a better idea to handle errors thrown by the XSL engine I'm
// really, really, REALLY open to suggestions.
private void recover(short severity, TransformerException exception) {
CompilationMessage cmsg = new CompilationMessage();
cmsg.severity = severity;
cmsg.code = "parseXsl";
cmsg.phase = 0;
cmsg.messageText = exception.getMessageAndLocation();
CompilationException ce = new CompilationException(cmsg, exception);
SourceLocation loc = exception.getLocator() != null ? new SourceLocatorWrapper(exception.getLocator()) : null;
if (_cc != null)
_cc.recoveredFromError(loc,ce);
else
__log.error("XSL stylesheet parsing error! ", exception);
}
}