/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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.elasticsearch.index.store.memory;
import org.apache.lucene.store.IndexInput;
import org.apache.lucene.store.IndexOutput;
import org.apache.lucene.store.Lock;
import org.apache.lucene.store.LockObtainFailedException;
import org.apache.lucene.store.bytebuffer.ByteBufferDirectory;
import org.elasticsearch.cache.memory.ByteBufferCache;
import org.testng.annotations.Test;
import java.io.IOException;
import static org.hamcrest.MatcherAssert.*;
import static org.hamcrest.Matchers.*;
/**
* @author kimchy
*/
public class SimpleByteBufferStoreTests {
@Test public void test1BufferNoCache() throws Exception {
ByteBufferCache cache = new ByteBufferCache(1, 0, true);
ByteBufferDirectory dir = new ByteBufferDirectory(cache);
insertData(dir, 1);
verifyData(dir);
dir.close();
cache.close();
}
@Test public void test1Buffer() throws Exception {
ByteBufferCache cache = new ByteBufferCache(1, 10, true);
ByteBufferDirectory dir = new ByteBufferDirectory(cache);
insertData(dir, 1);
verifyData(dir);
dir.close();
cache.close();
}
@Test public void test3Buffer() throws Exception {
ByteBufferCache cache = new ByteBufferCache(3, 10, true);
ByteBufferDirectory dir = new ByteBufferDirectory(cache);
insertData(dir, 3);
verifyData(dir);
dir.close();
cache.close();
}
@Test public void test10Buffer() throws Exception {
ByteBufferCache cache = new ByteBufferCache(10, 20, true);
ByteBufferDirectory dir = new ByteBufferDirectory(cache);
insertData(dir, 10);
verifyData(dir);
dir.close();
cache.close();
}
@Test public void test15Buffer() throws Exception {
ByteBufferCache cache = new ByteBufferCache(15, 30, true);
ByteBufferDirectory dir = new ByteBufferDirectory(cache);
insertData(dir, 15);
verifyData(dir);
dir.close();
cache.close();
}
@Test public void test40Buffer() throws Exception {
ByteBufferCache cache = new ByteBufferCache(40, 80, true);
ByteBufferDirectory dir = new ByteBufferDirectory(cache);
insertData(dir, 40);
verifyData(dir);
dir.close();
cache.close();
}
@Test public void testSimpleLocking() throws Exception {
ByteBufferCache cache = new ByteBufferCache(40, 80, true);
ByteBufferDirectory dir = new ByteBufferDirectory(cache);
Lock lock = dir.makeLock("testlock");
assertThat(lock.isLocked(), equalTo(false));
assertThat(lock.obtain(200), equalTo(true));
assertThat(lock.isLocked(), equalTo(true));
try {
assertThat(lock.obtain(200), equalTo(false));
assertThat("lock should be thrown", false, equalTo(true));
} catch (LockObtainFailedException e) {
// all is well
}
lock.release();
assertThat(lock.isLocked(), equalTo(false));
dir.close();
cache.close();
}
private void insertData(ByteBufferDirectory dir, int bufferSizeInBytes) throws IOException {
byte[] test = new byte[]{1, 2, 3, 4, 5, 6, 7, 8};
IndexOutput indexOutput = dir.createOutput("value1");
indexOutput.writeBytes(new byte[]{2, 4, 6, 7, 8}, 5);
indexOutput.writeInt(-1);
indexOutput.writeLong(10);
indexOutput.writeInt(0);
indexOutput.writeInt(0);
indexOutput.writeBytes(test, 8);
indexOutput.writeBytes(test, 5);
indexOutput.seek(0);
indexOutput.writeByte((byte) 8);
if (bufferSizeInBytes > 4) {
indexOutput.seek(2);
indexOutput.writeBytes(new byte[]{1, 2}, 2);
}
indexOutput.close();
}
private void verifyData(ByteBufferDirectory dir) throws IOException {
byte[] test = new byte[]{1, 2, 3, 4, 5, 6, 7, 8};
assertThat(dir.fileExists("value1"), equalTo(true));
assertThat(dir.fileLength("value1"), equalTo(38l));
IndexInput indexInput = dir.openInput("value1");
indexInput.readBytes(test, 0, 5);
assertThat(test[0], equalTo((byte) 8));
assertThat(indexInput.readInt(), equalTo(-1));
assertThat(indexInput.readLong(), equalTo((long) 10));
assertThat(indexInput.readInt(), equalTo(0));
assertThat(indexInput.readInt(), equalTo(0));
indexInput.readBytes(test, 0, 8);
assertThat(test[0], equalTo((byte) 1));
assertThat(test[7], equalTo((byte) 8));
indexInput.readBytes(test, 0, 5);
assertThat(test[0], equalTo((byte) 1));
assertThat(test[4], equalTo((byte) 5));
indexInput.seek(28);
assertThat(indexInput.readByte(), equalTo((byte) 4));
indexInput.seek(30);
assertThat(indexInput.readByte(), equalTo((byte) 6));
indexInput.seek(0);
indexInput.readBytes(test, 0, 5);
assertThat(test[0], equalTo((byte) 8));
indexInput.close();
indexInput = dir.openInput("value1");
// iterate over all the data
for (int i = 0; i < 38; i++) {
indexInput.readByte();
}
indexInput.close();
}
}