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/*
* 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.tuscany.binding.jms.databinding;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamClass;
import org.apache.tuscany.spi.databinding.DataBindingRegistry;
import org.apache.tuscany.spi.databinding.Mediator;
import org.apache.tuscany.spi.databinding.PullTransformer;
import org.apache.tuscany.spi.databinding.TransformationException;
import org.apache.tuscany.spi.databinding.extension.TransformerExtension;
/**
* This is a special transformer to transform the input from one IDL to the
* other one
*/
public abstract class AbstractJmsTransformer<T> extends TransformerExtension<T, T> implements PullTransformer<T, T> {
protected static final String IDL_INPUT = "idl:input";
protected static final String JMS_INPUT = "jms:input";
protected static final String IDL_OUTPUT = "idl:output";
protected static final String JMS_OUTPUT = "jms:output";
protected DataBindingRegistry dataBindingRegistry;
protected Mediator mediator;
public AbstractJmsTransformer() {
super();
}
/**
* @see org.apache.tuscany.spi.databinding.Transformer#getWeight()
*/
public int getWeight() {
return 10;
}
protected Object read(byte[] bytes) {
try {
ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
ObjectInputStream ois = new ObjectInputStream(bis) {
@Override
protected Class<?> resolveClass(ObjectStreamClass desc) throws IOException, ClassNotFoundException {
try {
return Class.forName(desc.getName(), false, this.getClass().getClassLoader());
} catch (ClassNotFoundException e) {
return super.resolveClass(desc);
}
}
};
Object object = ois.readObject();
ois.close();
bis.close();
return object;
} catch (Exception e) {
throw new TransformationException(e);
}
}
protected byte[] write(Object source) {
try {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(source);
oos.close();
bos.close();
return bos.toByteArray();
} catch (IOException e) {
throw new TransformationException(e);
}
}
}
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