storage-handlers/hbase/src/test/org/apache/hcatalog/hbase/snapshot/TestThriftSerialization.java

/**
 * 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.hcatalog.hbase.snapshot;

import static org.junit.Assert.assertTrue;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.apache.hcatalog.hbase.snapshot.transaction.thrift.StoreFamilyRevision;
import org.apache.hcatalog.hbase.snapshot.transaction.thrift.StoreFamilyRevisionList;
import org.junit.Test;

public class TestThriftSerialization {

    @Test
    public void testLightWeightTransaction() {
        StoreFamilyRevision trxn = new StoreFamilyRevision(0, 1000);
        try {

            byte[] data = ZKUtil.serialize(trxn);
            StoreFamilyRevision newWtx = new StoreFamilyRevision();
            ZKUtil.deserialize(newWtx, data);

            assertTrue(newWtx.getRevision() == trxn.getRevision());
            assertTrue(newWtx.getTimestamp() == trxn.getTimestamp());

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    @Test
    public void testWriteTransactionList() {
        List<StoreFamilyRevision> txnList = new ArrayList<StoreFamilyRevision>();
        long version;
        long timestamp;
        for (int i = 0; i < 10; i++) {
            version = i;
            timestamp = 1000 + i;
            StoreFamilyRevision wtx = new StoreFamilyRevision(version, timestamp);
            txnList.add(wtx);
        }

        StoreFamilyRevisionList wList = new StoreFamilyRevisionList(txnList);

        try {
            byte[] data = ZKUtil.serialize(wList);
            StoreFamilyRevisionList newList = new StoreFamilyRevisionList();
            ZKUtil.deserialize(newList, data);
            assertTrue(newList.getRevisionListSize() == wList.getRevisionListSize());

            Iterator<StoreFamilyRevision> itr = newList.getRevisionListIterator();
            int i = 0;
            while (itr.hasNext()) {
                StoreFamilyRevision txn = itr.next();
                assertTrue(txn.getRevision() == i);
                assertTrue(txn.getTimestamp() == (i + 1000));
                i++;
            }

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}