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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package org.apache.thrift;
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import java.io.ByteArrayOutputStream;
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import java.io.UnsupportedEncodingException;
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import org.apache.thrift.protocol.TBinaryProtocol;
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import org.apache.thrift.protocol.TProtocol;
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import org.apache.thrift.protocol.TProtocolFactory;
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import org.apache.thrift.transport.TIOStreamTransport;
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/**
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* Generic utility for easily serializing objects into a byte array or Java
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* String.
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*
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*/
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public class TSerializer {
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/**
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* This is the byte array that data is actually serialized into
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*/
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private final ByteArrayOutputStream baos_ = new ByteArrayOutputStream();
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/**
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* This transport wraps that byte array
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*/
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private final TIOStreamTransport transport_ = new TIOStreamTransport(baos_);
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/**
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* Internal protocol used for serializing objects.
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*/
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private TProtocol protocol_;
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/**
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* Create a new TSerializer that uses the TBinaryProtocol by default.
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*/
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public TSerializer() {
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this(new TBinaryProtocol.Factory());
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}
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/**
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* Create a new TSerializer. It will use the TProtocol specified by the
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* factory that is passed in.
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*
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* @param protocolFactory Factory to create a protocol
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*/
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public TSerializer(TProtocolFactory protocolFactory) {
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protocol_ = protocolFactory.getProtocol(transport_);
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}
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/**
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* Serialize the Thrift object into a byte array. The process is simple,
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* just clear the byte array output, write the object into it, and grab the
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* raw bytes.
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*
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* @param base The object to serialize
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* @return Serialized object in byte[] format
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*/
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public byte[] serialize(TBase base) throws TException {
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baos_.reset();
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base.write(protocol_);
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return baos_.toByteArray();
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}
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/**
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* Serialize the Thrift object into a Java string, using a specified
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* character set for encoding.
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*
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* @param base The object to serialize
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* @param charset Valid JVM charset
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* @return Serialized object as a String
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*/
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public String toString(TBase base, String charset) throws TException {
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try {
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return new String(serialize(base), charset);
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} catch (UnsupportedEncodingException uex) {
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throw new TException("JVM DOES NOT SUPPORT ENCODING: " + charset);
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}
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}
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/**
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* Serialize the Thrift object into a Java string, using the default JVM
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* charset encoding.
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*
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* @param base The object to serialize
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* @return Serialized object as a String
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*/
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public String toString(TBase base) throws TException {
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return new String(serialize(base));
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}
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}
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