| /* |
| * 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.hyracks.dataflow.std.sort.util; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.nio.ByteBuffer; |
| |
| import org.apache.commons.lang3.ArrayUtils; |
| import org.apache.hyracks.api.dataflow.value.ISerializerDeserializer; |
| import org.apache.hyracks.api.dataflow.value.RecordDescriptor; |
| import org.apache.hyracks.api.exceptions.HyracksDataException; |
| import org.apache.hyracks.dataflow.common.comm.io.ArrayTupleBuilder; |
| import org.apache.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer; |
| import org.apache.hyracks.dataflow.common.data.marshalling.UTF8StringSerializerDeserializer; |
| import org.apache.hyracks.util.IntSerDeUtils; |
| import org.apache.hyracks.dataflow.std.sort.Utility; |
| import org.apache.hyracks.util.string.UTF8StringUtil; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class DeletableFrameTupleAppenderTest { |
| DeletableFrameTupleAppender appender; |
| ISerializerDeserializer[] fields = new ISerializerDeserializer[] { |
| IntegerSerializerDeserializer.INSTANCE, |
| new UTF8StringSerializerDeserializer(), |
| }; |
| RecordDescriptor recordDescriptor = new RecordDescriptor(fields); |
| ArrayTupleBuilder builder = new ArrayTupleBuilder(recordDescriptor.getFieldCount()); |
| static final char TEST_CH = 'x'; |
| |
| int cap = 256; |
| |
| @Before |
| public void initial() throws HyracksDataException { |
| appender = new DeletableFrameTupleAppender(recordDescriptor); |
| } |
| |
| @Test |
| public void testClear() throws Exception { |
| ByteBuffer buffer = ByteBuffer.allocate(cap); |
| appender.clear(buffer); |
| assertTrue(appender.getBuffer() == buffer); |
| assertTrue(appender.getTupleCount() == 0); |
| assertTrue(appender.getContiguousFreeSpace() == cap - 4 - 4); |
| } |
| |
| ByteBuffer makeAFrame(int capacity, int count, int deletedBytes) throws HyracksDataException { |
| ByteBuffer buffer = ByteBuffer.allocate(capacity); |
| int metaOffset = capacity - 4; |
| buffer.putInt(metaOffset, deletedBytes); |
| metaOffset -= 4; |
| buffer.putInt(metaOffset, count); |
| metaOffset -= 4; |
| for (int i = 0; i < count; i++, metaOffset -= 4) { |
| makeARecord(builder, i); |
| for (int x = 0; x < builder.getFieldEndOffsets().length; x++) { |
| buffer.putInt(builder.getFieldEndOffsets()[x]); |
| } |
| buffer.put(builder.getByteArray(), 0, builder.getSize()); |
| assert (metaOffset > buffer.position()); |
| buffer.putInt(metaOffset, buffer.position()); |
| |
| } |
| return buffer; |
| } |
| |
| void makeARecord(ArrayTupleBuilder builder, int i) throws HyracksDataException { |
| builder.reset(); |
| builder.addField(fields[0], i + 1); |
| builder.addField(fields[1], Utility.repeatString(TEST_CH, i + 1)); |
| } |
| |
| int assertTupleIsExpected(int i, int dataOffset) { |
| int lenStrMeta = UTF8StringUtil.getNumBytesToStoreLength(i); |
| int tupleLength = 2 * 4 + 4 + lenStrMeta + i + 1; |
| assertEquals(dataOffset, appender.getTupleStartOffset(i)); |
| assertEquals(tupleLength, appender.getTupleLength(i)); |
| |
| assertEquals(dataOffset + 2 * 4, appender.getAbsoluteFieldStartOffset(i, 0)); |
| assertEquals(4, appender.getFieldLength(i, 0)); |
| assertEquals(i + 1, |
| IntSerDeUtils.getInt(appender.getBuffer().array(), appender.getAbsoluteFieldStartOffset(i, 0))); |
| assertEquals(dataOffset + 2 * 4 + 4, appender.getAbsoluteFieldStartOffset(i, 1)); |
| assertEquals(lenStrMeta + i + 1, appender.getFieldLength(i, 1)); |
| return tupleLength; |
| } |
| |
| @Test |
| public void testReset() throws Exception { |
| ByteBuffer buffer = ByteBuffer.allocate(cap); |
| appender.reset(buffer); |
| assertTrue(appender.getBuffer() == buffer); |
| assertTrue(appender.getTupleCount() == 0); |
| assertTrue(appender.getContiguousFreeSpace() == cap - 4 - 4); |
| |
| int count = 10; |
| int deleted = 7; |
| buffer = makeAFrame(cap, count, deleted); |
| int pos = buffer.position(); |
| appender.reset(buffer); |
| assertTrue(appender.getBuffer() == buffer); |
| assertTrue(appender.getTupleCount() == count); |
| assertTrue(appender.getContiguousFreeSpace() == cap - 4 - 4 - count * 4 - pos); |
| assertTrue(appender.getTotalFreeSpace() == appender.getContiguousFreeSpace() + deleted); |
| |
| int dataOffset = 0; |
| for (int i = 0; i < count; i++) { |
| dataOffset += assertTupleIsExpected(i, dataOffset); |
| } |
| } |
| |
| @Test |
| public void testAppend() throws Exception { |
| int count = 10; |
| ByteBuffer bufferRead = makeAFrame(cap, count, 0); |
| DeletableFrameTupleAppender accessor = new DeletableFrameTupleAppender(recordDescriptor); |
| accessor.reset(bufferRead); |
| ByteBuffer bufferWrite = ByteBuffer.allocate(cap); |
| appender.clear(bufferWrite); |
| for (int i = 0; i < accessor.getTupleCount(); i++) { |
| appender.append(accessor, i); |
| } |
| for (int i = 0; i < bufferRead.capacity(); i++) { |
| assertEquals(bufferRead.get(i), bufferWrite.get(i)); |
| } |
| } |
| |
| @Test |
| public void testDelete() throws Exception { |
| int count = 10; |
| int deleteSpace = 0; |
| ByteBuffer buffer = makeAFrame(cap, count, deleteSpace); |
| appender.reset(buffer); |
| |
| int freeSpace = appender.getContiguousFreeSpace(); |
| for (int i = 0; i < appender.getTupleCount(); i++) { |
| deleteSpace += assertDeleteSucceed(i, freeSpace, deleteSpace); |
| int innerOffset = deleteSpace; |
| for (int j = i + 1; j < appender.getTupleCount(); j++) { |
| innerOffset += assertTupleIsExpected(j, innerOffset); |
| } |
| } |
| } |
| |
| @Test |
| public void testResetAfterDelete() throws Exception { |
| testDelete(); |
| appender.reset(appender.getBuffer()); |
| assertEquals(cap - appender.getTupleCount() * 4 - 4 - 4, appender.getTotalFreeSpace()); |
| |
| } |
| |
| int assertDeleteSucceed(int i, int freeSpaceBeforeDelete, int deleteSpace) { |
| int startOffset = appender.getTupleStartOffset(i); |
| int endOffset = appender.getTupleEndOffset(i); |
| int tupleLength = appender.getTupleLength(i); |
| |
| appender.delete(i); |
| |
| assertEquals(startOffset, appender.getTupleStartOffset(i)); |
| assertEquals(-endOffset, appender.getTupleEndOffset(i)); |
| assertEquals(-tupleLength, appender.getTupleLength(i)); |
| assertEquals(freeSpaceBeforeDelete, appender.getContiguousFreeSpace()); |
| assertEquals(deleteSpace + tupleLength + freeSpaceBeforeDelete, appender.getTotalFreeSpace()); |
| return tupleLength; |
| } |
| |
| @Test |
| public void testAppendAndDelete() throws Exception { |
| int cap = 1024; |
| int count = 10; |
| int deleteSpace = 0; |
| ByteBuffer buffer = makeAFrame(cap, count, deleteSpace); |
| int dataOffset = buffer.position(); |
| appender.reset(buffer); |
| |
| int freeSpace = appender.getContiguousFreeSpace(); |
| int[] deleteSet = new int[] { 1, 3, 5 }; |
| for (int i = 0; i < deleteSet.length; i++) { |
| deleteSpace += assertDeleteSucceed(deleteSet[i], freeSpace, deleteSpace); |
| } |
| |
| ByteBuffer bufferRead = makeAFrame(cap, count * 2, 0); |
| DeletableFrameTupleAppender accessor = new DeletableFrameTupleAppender(recordDescriptor); |
| accessor.reset(bufferRead); |
| |
| for (int i = count; i < accessor.getTupleCount(); i++) { |
| int id = appender.append(accessor, i); |
| dataOffset += assertTupleIsExpected(i, dataOffset); |
| assertEquals(i, id); |
| } |
| |
| appender.reOrganizeBuffer(); |
| dataOffset = 0; |
| for (int i = 0; i < appender.getTupleCount(); i++) { |
| if (ArrayUtils.contains(deleteSet, i)) { |
| continue; |
| } |
| dataOffset += assertTupleIsExpected(i, dataOffset); |
| } |
| } |
| |
| @Test |
| public void testReOrganizeBuffer() throws Exception { |
| int count = 10; |
| testDelete(); |
| appender.reOrganizeBuffer(); |
| ByteBuffer bufferRead = makeAFrame(cap, count, 0); |
| DeletableFrameTupleAppender accessor = new DeletableFrameTupleAppender(recordDescriptor); |
| accessor.reset(bufferRead); |
| for (int i = 0; i < accessor.getTupleCount(); i++) { |
| appender.append(accessor, i); |
| } |
| for (int i = 0; i < bufferRead.capacity(); i++) { |
| assertEquals(bufferRead.get(i), appender.getBuffer().get(i)); |
| } |
| } |
| |
| } |