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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.thrift;
import java.io.ByteArrayOutputStream;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.protocol.TProtocolFactory;
import org.apache.thrift.transport.TIOStreamTransport;
import org.apache.thrift.transport.TTransportException;
/** Generic utility for easily serializing objects into a byte array or Java String. */
public class TSerializer {
/** This is the byte array that data is actually serialized into */
private final ByteArrayOutputStream baos_ = new ByteArrayOutputStream();
/** This transport wraps that byte array */
private final TIOStreamTransport transport_;
/** Internal protocol used for serializing objects. */
private TProtocol protocol_;
/**
* Create a new TSerializer that uses the TBinaryProtocol by default.
*
* @throws TTransportException if there an error initializing the underlying transport.
*/
public TSerializer() throws TTransportException {
this(new TBinaryProtocol.Factory());
}
/**
* Create a new TSerializer. It will use the TProtocol specified by the factory that is passed in.
*
* @param protocolFactory Factory to create a protocol
* @throws TTransportException if there an error initializing the underlying transport.
*/
public TSerializer(TProtocolFactory protocolFactory) throws TTransportException {
transport_ = new TIOStreamTransport(new TConfiguration(), baos_);
protocol_ = protocolFactory.getProtocol(transport_);
}
/**
* Serialize the Thrift object into a byte array. The process is simple, just clear the byte array
* output, write the object into it, and grab the raw bytes.
*
* @param base The object to serialize
* @return Serialized object in byte[] format
* @throws TException if an error is encountered during serialization.
*/
public byte[] serialize(TBase base) throws TException {
baos_.reset();
base.write(protocol_);
return baos_.toByteArray();
}
/**
* Serialize the Thrift object into a Java string, using the default JVM charset encoding.
*
* @param base The object to serialize
* @return Serialized object as a String
* @throws TException if an error is encountered during serialization.
*/
public String toString(TBase base) throws TException {
return new String(serialize(base));
}
}
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