org.jboss.marshalling.AbstractUnmarshaller Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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.jboss.marshalling;
import java.io.IOException;
/**
* An abstract implementation of the {@code Unmarshaller} interface. Most of the
* write methods delegate directly to the current data output.
*/
public abstract class AbstractUnmarshaller extends AbstractObjectInput implements Unmarshaller {
/** The configured class externalizer factory. */
protected final ClassExternalizerFactory classExternalizerFactory;
/** The configured stream header. */
protected final StreamHeader streamHeader;
/** The configured class resolver. */
protected final ClassResolver classResolver;
/** The configured object resolver. */
protected final ObjectResolver objectResolver;
/** The configured object pre resolver. */
protected final ObjectResolver objectPreResolver;
/** The configured class table. */
protected final ClassTable classTable;
/** The configured object table. */
protected final ObjectTable objectTable;
/** The configured exception listener. */
protected final ExceptionListener exceptionListener;
/** The configured serializability checker. */
protected final SerializabilityChecker serializabilityChecker;
/** The configured version. */
protected final int configuredVersion;
/**
* Construct a new unmarshaller instance.
*
* @param marshallerFactory the marshaller factory
* @param configuration
*/
protected AbstractUnmarshaller(final AbstractMarshallerFactory marshallerFactory, final MarshallingConfiguration configuration) {
super(configuration.getBufferSize());
final ClassExternalizerFactory classExternalizerFactory = configuration.getClassExternalizerFactory();
this.classExternalizerFactory = classExternalizerFactory == null ? marshallerFactory.getDefaultClassExternalizerFactory() : classExternalizerFactory;
final StreamHeader streamHeader = configuration.getStreamHeader();
this.streamHeader = streamHeader == null ? marshallerFactory.getDefaultStreamHeader() : streamHeader;
final ClassResolver classResolver = configuration.getClassResolver();
final ClassNameTransformer classNameTransformer = configuration.getClassNameTransformer();
if (classNameTransformer != null) {
this.classResolver = new TransformingClassResolver(classResolver == null ? marshallerFactory.getDefaultClassResolver() : classResolver, classNameTransformer, true);
} else {
this.classResolver = classResolver == null ? marshallerFactory.getDefaultClassResolver() : classResolver;
}
final ObjectResolver objectResolver = configuration.getObjectResolver();
this.objectResolver = objectResolver == null ? marshallerFactory.getDefaultObjectResolver() : objectResolver;
final ObjectResolver objectPreResolver = configuration.getObjectPreResolver();
this.objectPreResolver = objectPreResolver == null ? marshallerFactory.getDefaultObjectResolver() : objectPreResolver;
final ClassTable classTable = configuration.getClassTable();
this.classTable = classTable == null ? marshallerFactory.getDefaultClassTable() : classTable;
final ObjectTable objectTable = configuration.getObjectTable();
this.objectTable = objectTable == null ? marshallerFactory.getDefaultObjectTable() : objectTable;
final ExceptionListener exceptionListener = configuration.getExceptionListener();
this.exceptionListener = exceptionListener == null ? ExceptionListener.NO_OP : exceptionListener;
final SerializabilityChecker serializabilityChecker = configuration.getSerializabilityChecker();
this.serializabilityChecker = serializabilityChecker == null ? SerializabilityChecker.DEFAULT : serializabilityChecker;
final int configuredVersion = configuration.getVersion();
this.configuredVersion = configuredVersion == -1 ? marshallerFactory.getDefaultVersion() : configuredVersion;
}
/** {@inheritDoc} */
public void start(final ByteInput byteInput) throws IOException {
this.byteInput = byteInput;
position = limit = 0;
streamHeader.readHeader(this);
}
/** {@inheritDoc} */
public void finish() throws IOException {
limit = -1;
position = 0;
byteInput = null;
clearClassCache();
}
}