/**
* 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.camel.processor.aggregate.jdbc;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import org.apache.camel.CamelContext;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.impl.DefaultExchange;
import org.apache.camel.impl.DefaultExchangeHolder;
import org.apache.camel.util.IOHelper;
/**
* Adapted from HawtDBCamelCodec
*/
public final class JdbcCamelCodec {
public byte[] marshallExchange(CamelContext camelContext, Exchange exchange) throws IOException {
// use DefaultExchangeHolder to marshal to a serialized object
DefaultExchangeHolder pe = DefaultExchangeHolder.marshal(exchange, false);
// add the aggregated size and timeout property as the only properties we want to retain
DefaultExchangeHolder.addProperty(pe, Exchange.AGGREGATED_SIZE, exchange.getProperty(Exchange.AGGREGATED_SIZE, Integer.class));
DefaultExchangeHolder.addProperty(pe, Exchange.AGGREGATED_TIMEOUT, exchange.getProperty(Exchange.AGGREGATED_TIMEOUT, Long.class));
// add the aggregated completed by property to retain
DefaultExchangeHolder.addProperty(pe, Exchange.AGGREGATED_COMPLETED_BY, exchange.getProperty(Exchange.AGGREGATED_COMPLETED_BY, String.class));
// add the aggregated correlation key property to retain
DefaultExchangeHolder.addProperty(pe, Exchange.AGGREGATED_CORRELATION_KEY, exchange.getProperty(Exchange.AGGREGATED_CORRELATION_KEY, String.class));
// persist the from endpoint as well
if (exchange.getFromEndpoint() != null) {
DefaultExchangeHolder.addProperty(pe, "CamelAggregatedFromEndpoint", exchange.getFromEndpoint().getEndpointUri());
}
return encode(pe);
}
public Exchange unmarshallExchange(CamelContext camelContext, byte[] buffer) throws IOException, ClassNotFoundException {
DefaultExchangeHolder pe = decode(camelContext, buffer);
Exchange answer = new DefaultExchange(camelContext);
DefaultExchangeHolder.unmarshal(answer, pe);
// restore the from endpoint
String fromEndpointUri = (String) answer.removeProperty("CamelAggregatedFromEndpoint");
if (fromEndpointUri != null) {
Endpoint fromEndpoint = camelContext.hasEndpoint(fromEndpointUri);
if (fromEndpoint != null) {
answer.setFromEndpoint(fromEndpoint);
}
}
return answer;
}
private byte[] encode(Object object) throws IOException {
ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
ObjectOutputStream objectOut = new ObjectOutputStream(bytesOut);
objectOut.writeObject(object);
objectOut.close();
byte[] data = bytesOut.toByteArray();
return data;
}
private DefaultExchangeHolder decode(CamelContext camelContext, byte[] dataIn) throws IOException, ClassNotFoundException {
ByteArrayInputStream bytesIn = new ByteArrayInputStream(dataIn);
ObjectInputStream objectIn = null;
Object obj = null;
try {
objectIn = new ClassLoadingAwareObjectInputStream(camelContext, bytesIn);
obj = objectIn.readObject();
} finally {
IOHelper.close(objectIn);
}
return (DefaultExchangeHolder)obj;
}
}