co.cask.tephra.TransactionCodec.java Source code

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Here is the source code for co.cask.tephra.TransactionCodec.java

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/*
 * Copyright  2014 Cask Data, Inc.
 *
 * 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 co.cask.tephra;

import co.cask.tephra.distributed.TransactionConverterUtils;
import co.cask.tephra.distributed.thrift.TTransaction;
import org.apache.thrift.TDeserializer;
import org.apache.thrift.TException;
import org.apache.thrift.TSerializer;

import java.io.IOException;

/**
 * Handles serialization and deserialization of {@link co.cask.tephra.Transaction} instances to and from {@code byte[]}.
 */
public class TransactionCodec {

    public TransactionCodec() {
    }

    public byte[] encode(Transaction tx) throws IOException {
        TTransaction thriftTx = TransactionConverterUtils.wrap(tx);
        TSerializer serializer = new TSerializer();
        try {
            return serializer.serialize(thriftTx);
        } catch (TException te) {
            throw new IOException(te);
        }
    }

    public Transaction decode(byte[] encoded) throws IOException {
        TTransaction thriftTx = new TTransaction();
        TDeserializer deserializer = new TDeserializer();
        try {
            deserializer.deserialize(thriftTx, encoded);
            return TransactionConverterUtils.unwrap(thriftTx);
        } catch (TException te) {
            throw new IOException(te);
        }
    }
}