/*
* Copyright 2006 Werner Guttmann
*
* 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.
*/
package org.exolab.castor.xml;
import java.io.IOException;
import java.io.OutputStream;
import java.io.Writer;
import java.lang.reflect.Method;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.castor.core.util.Messages;
import org.xml.sax.DocumentHandler;
/**
* Xerces-specific implementation of the Serializer interface, used for JDK 5
* only where Xerecs has been integrated with the core code base.
*
* @author <a href="mailto:werner DOT guttmann AT gmx DOT net">Werner
* Guttmann</a>
* @version $Revision: 6216 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr
* 2006) $
* @since 1.1
*/
public abstract class BaseXercesJDK5Serializer implements
org.exolab.castor.xml.Serializer {
/**
* Logger instance for logging.
*/
private final Log LOG = LogFactory.getLog(getClass());
/**
* Xerces XMLSerializer instance to use for serialization.
*/
private Object _serializer;
/**
* Creates an instance of this class.
*/
public BaseXercesJDK5Serializer() {
try {
_serializer = Class.forName(getPackageName() + ".XMLSerializer")
.newInstance();
} catch (Exception except) {
throw new RuntimeException(Messages.format(
"conf.failedInstantiateSerializer", getPackageName()
+ ".XMLSerializer", except));
}
}
protected abstract String getPackageName();
/**
* @see org.exolab.castor.xml.Serializer#setOutputCharStream(java.io.Writer)
* {@inheritDoc}
*/
public void setOutputCharStream(final Writer out) {
Method method;
try {
method = _serializer.getClass().getMethod("setOutputCharStream",
new Class[] { Writer.class });
method.invoke(_serializer, new Object[] { out });
} catch (Exception e) {
String msg = "Problem invoking XMLSerializer.setOutputCharStream()";
LOG.error(msg, e);
throw new RuntimeException(msg + e.getMessage());
}
}
/**
* @see org.exolab.castor.xml.Serializer#asDocumentHandler() {@inheritDoc}
*/
public DocumentHandler asDocumentHandler() throws IOException {
Method method;
try {
method = _serializer.getClass().getMethod("asDocumentHandler",
(Class[]) null);
return (DocumentHandler) method
.invoke(_serializer, (Object[]) null);
} catch (Exception e) {
String msg = "Problem invoking XMLSerializer.asDocumentHandler()";
LOG.error(msg, e);
throw new RuntimeException(msg + e.getMessage());
}
}
/**
* @see org.exolab.castor.xml.Serializer
* #setOutputFormat(org.exolab.castor.xml.OutputFormat) {@inheritDoc}
*/
public void setOutputFormat(final OutputFormat format) {
Method method;
try {
Class outputFormatClass = Class.forName(getPackageName()
+ ".OutputFormat");
method = _serializer.getClass().getMethod("setOutputFormat",
new Class[] { outputFormatClass });
method.invoke(_serializer, new Object[] { format.getFormat() });
} catch (Exception e) {
String msg = "Problem invoking XMLSerializer.setOutputFormat()";
LOG.error(msg, e);
throw new RuntimeException(msg + e.getMessage());
}
}
/**
* @see org.exolab.castor.xml.Serializer#setOutputByteStream(java.io.OutputStream)
* {@inheritDoc}
*/
public void setOutputByteStream(final OutputStream output) {
Method method;
try {
method = _serializer.getClass().getMethod("setOutputByteStream",
new Class[] { OutputStream.class });
method.invoke(_serializer, new Object[] { output });
} catch (Exception e) {
String msg = "Problem invoking XMLSerializer.setOutputByteStream()";
LOG.error(msg, e);
throw new RuntimeException(msg + e.getMessage());
}
}
}