| /* |
| * 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.pig.test; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.DataInputStream; |
| import java.io.DataOutput; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Random; |
| |
| import org.apache.pig.data.BagFactory; |
| import org.apache.pig.data.BinInterSedes; |
| import org.apache.pig.data.DataBag; |
| import org.apache.pig.data.DataByteArray; |
| import org.apache.pig.data.InterSedes; |
| import org.apache.pig.data.InterSedesFactory; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.data.TupleFactory; |
| import org.apache.pig.impl.util.TupleFormat; |
| import org.junit.Test; |
| |
| public class TestBinInterSedes { |
| private static final TupleFactory mTupleFactory = TupleFactory.getInstance(); |
| private static final BinInterSedes bis = new BinInterSedes(); |
| private static final Random random = new Random(100L); |
| |
| @Test |
| public void testTupleWriteRead1() throws IOException { |
| //create a tuple with columns of different type |
| Tuple tuplein = TupleFactory.getInstance().newTuple(7); |
| tuplein.set(0, 12); |
| Map<String, String> map = new HashMap<String, String>(); |
| map.put("pig", "scalability"); |
| tuplein.set(1, map); |
| tuplein.set(2, null); |
| tuplein.set(3, 12L); |
| tuplein.set(4, 1.2F); |
| |
| Tuple innerTuple = TupleFactory.getInstance().newTuple(1); |
| innerTuple.set(0, "innerTuple"); |
| tuplein.set(5, innerTuple); |
| DataBag bag = BagFactory.getInstance().newDefaultBag(); |
| bag.add(innerTuple); |
| tuplein.set(6, bag); |
| |
| testTupleSedes(tuplein); |
| |
| assertEquals( |
| "(12,[pig#scalability],,12,1.2,(innerTuple),{(innerTuple)})", |
| TupleFormat.format(tuplein)); |
| } |
| |
| |
| /** |
| * test sedes of int of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadIntDiffSizes() throws IOException { |
| //create a tuple with integer columns of different sizes |
| Tuple tuple = TupleFactory.getInstance().newTuple(); |
| tuple.append(new Integer(0)); //boolean rep |
| tuple.append(new Integer(1)); //boolean rep |
| tuple.append(new Integer(125)); //fits into byte |
| tuple.append(new Integer(1024)); //fits into short |
| tuple.append(new Integer(1024*1024*1024)); //fits into int (=~ 2 ^30) |
| |
| testTupleSedes(tuple); |
| } |
| |
| /** |
| * test sedes of bytearray, string of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadByteArrStringDiffSizes() throws IOException { |
| // tuple with ByteArray and strings of different sizes |
| Tuple tuple = TupleFactory.getInstance().newTuple(); |
| byte [] tinyBA = new byte[10]; |
| byte [] smallBA = new byte[1000]; |
| byte [] largeBytearray = new byte[80000]; |
| //init large bytearray with non 0 values, its going to be used as |
| //string as well |
| for(int i=0; i< largeBytearray.length; i++){ |
| largeBytearray[i] = '1'; |
| } |
| tuple.append(new DataByteArray(tinyBA)); |
| tuple.append(new DataByteArray(smallBA)); |
| tuple.append(new DataByteArray(largeBytearray)); |
| |
| testTupleSedes(tuple); |
| |
| // add strings of different sizes |
| tuple = TupleFactory.getInstance().newTuple(); |
| tuple.append(new String("")); |
| tuple.append(new String("x")); |
| //string larger than 32k |
| tuple.append(new String(largeBytearray)); |
| |
| testTupleSedes(tuple); |
| } |
| |
| /** |
| * test sedes with bags of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadBagDiffSizes() throws IOException { |
| // tuple with ByteArray and strings of different sizes |
| Tuple tuple = TupleFactory.getInstance().newTuple(); |
| DataBag tinyBag = createBag(10); |
| DataBag smallBag = createBag(1000); |
| DataBag largeBag = createBag(100*1024); |
| |
| tuple.append(tinyBag); |
| tuple.append(smallBag); |
| tuple.append(largeBag); |
| |
| testTupleSedes(tuple); |
| } |
| |
| /* |
| * test sedes of long of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadLongDiffSizes() throws IOException { |
| Random r = new Random(100L); |
| |
| Tuple tuple = TupleFactory.getInstance().newTuple(); |
| |
| tuple.append(new Long(0)); |
| tuple.append(new Long(1)); |
| tuple.append(new Long(-1)); |
| tuple.append(new Long(300)); |
| tuple.append(new Long(600)); |
| tuple.append(new Long(10000)); |
| tuple.append(new Long(-10000)); |
| tuple.append(new Long(5000000000000000000L)); |
| tuple.append(new Long(-5000000000000000000L)); |
| |
| for (int i = 0; i < 100000; i++) { |
| tuple.append(new Long(r.nextLong())); |
| } |
| |
| testTupleSedes(tuple); |
| } |
| |
| /** |
| * create bag having given number of tuples |
| * @param size |
| * @return |
| */ |
| private DataBag createBag(int size) { |
| Tuple innerTuple = TupleFactory.getInstance().newTuple(); |
| innerTuple.append(Integer.valueOf(1)); |
| DataBag bag = BagFactory.getInstance().newDefaultBag(); |
| for(int i=0; i<size; i++){ |
| bag.add(innerTuple); |
| } |
| return bag; |
| } |
| |
| /** |
| * test sedes tuple of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadDiffSizes() throws IOException { |
| // tuple with ByteArray and strings of different sizes |
| Tuple smallTuple = createTupleWithManyCols(1000); |
| testTupleSedes(smallTuple); |
| |
| Tuple largeTuple = createTupleWithManyCols(100*1000); |
| testTupleSedes(largeTuple); |
| } |
| |
| private Tuple createTupleWithManyCols(int size) { |
| Tuple t = TupleFactory.getInstance().newTuple(size); |
| Integer col = Integer.valueOf(1); |
| for(int i=0; i<size; i++){ |
| t.append(col); |
| } |
| return t; |
| } |
| |
| /** |
| * test sedes with maps of diff sizes |
| * @throws IOException |
| */ |
| @Test |
| public void testTupleWriteReadMapDiffSizes() throws IOException { |
| // tuple with ByteArray and strings of different sizes |
| Tuple tuple = TupleFactory.getInstance().newTuple(); |
| Map<String, Object> tinyMap = createMap(10); |
| Map<String, Object> smallMap = createMap(1000); |
| Map<String, Object> largeMap = createMap(100*1024); |
| tuple.append(tinyMap); |
| tuple.append(smallMap); |
| tuple.append(largeMap); |
| |
| testTupleSedes(tuple); |
| } |
| |
| private Map<String, Object> createMap(int size) { |
| Map<String,Object> map = new HashMap<String, Object>(size); |
| String key = String.valueOf('A'); |
| Integer val = Integer.valueOf(1); |
| for(int i=0; i<size; i++){ |
| map.put(key, val); |
| } |
| return map; |
| } |
| |
| /** |
| * Write the serialized tuple to DataOutputStream and get deserialized tuple |
| * compare the given tuple and deserialized tuple to make sure they are |
| * equivalent |
| * @param tuple |
| * @throws IOException |
| */ |
| private void testTupleSedes(Tuple tuple) throws IOException { |
| |
| InterSedes sedes = InterSedesFactory.getInterSedesInstance(); |
| |
| //write the tuple into a DataOutputStream on bytearray |
| ByteArrayOutputStream bout = new ByteArrayOutputStream(10*1024*1024);// 10 MB |
| DataOutputStream out = new DataOutputStream(bout); |
| sedes.writeDatum(out, tuple); |
| out.flush(); |
| |
| //read tuple back |
| ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); |
| DataInputStream in = new DataInputStream(bin); |
| Tuple tupleout = (Tuple)sedes.readDatum(in); |
| |
| assertEquals(" Tuple before and after serialization are same ", |
| tuple, tupleout); |
| |
| } |
| |
| /** |
| * See PIG-2936. The purpose of this test is to ensure that Tuples are being serialized in |
| * the specific way that we expect. |
| */ |
| @Test |
| public void testTupleSerializationSpecific() throws Exception { |
| byte[] flags = { |
| BinInterSedes.TUPLE_0, |
| BinInterSedes.TUPLE_1, |
| BinInterSedes.TUPLE_2, |
| BinInterSedes.TUPLE_3, |
| BinInterSedes.TUPLE_4, |
| BinInterSedes.TUPLE_5, |
| BinInterSedes.TUPLE_6, |
| BinInterSedes.TUPLE_7, |
| BinInterSedes.TUPLE_8, |
| BinInterSedes.TUPLE_9, |
| }; |
| |
| for (int i = 0; i < flags.length; i++) { |
| Tuple t = mTupleFactory.newTuple(i); |
| |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| DataOutput out = new DataOutputStream(baos); |
| out.writeByte(flags[i]); |
| |
| for (int j = 0; j < i; j++) { |
| Integer val = Integer.valueOf(random.nextInt()); |
| bis.writeDatum(out, val); |
| t.set(j, val); |
| } |
| |
| testSerTuple(t, baos.toByteArray()); |
| } |
| } |
| |
| private void testSerTuple(Tuple t, byte[] expected) throws Exception { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| DataOutput out = new DataOutputStream(baos); |
| |
| bis.writeDatum(out, t); |
| |
| Tuple t2 = (Tuple) bis.readDatum(new DataInputStream(new ByteArrayInputStream(baos.toByteArray()))); |
| |
| assertEquals(t, t2); |
| } |
| } |