/*
* 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.jackrabbit.mongomk.impl;
import java.io.ByteArrayInputStream;
import java.util.Arrays;
import junit.framework.Assert;
import org.apache.jackrabbit.mk.blobs.BlobStore;
import org.apache.jackrabbit.mk.util.MicroKernelInputStream;
import org.apache.jackrabbit.mongomk.AbstractMongoConnectionTest;
import org.apache.jackrabbit.mongomk.impl.blob.MongoBlobStore;
import org.junit.Before;
import org.junit.Test;
import com.mongodb.DB;
/**
* Tests for {@code MongoMicroKernel#read(String, long, byte[], int, int)}
*/
public class MongoMKReadTest extends AbstractMongoConnectionTest {
private MongoMicroKernel mk;
private byte[] blob;
private String blobId;
@Before
public void setUp() throws Exception {
DB db = mongoConnection.getDB();
MongoNodeStore nodeStore = new MongoNodeStore(db);
BlobStore blobStore = new MongoBlobStore(db);
mk = new MongoMicroKernel(mongoConnection, nodeStore, blobStore);
}
@Test
public void small() throws Exception {
read(1024, false);
}
@Test
public void medium() throws Exception {
read(1024 * 1024, false);
}
@Test
public void large() throws Exception {
// Skip range tests for large blobs for now as it's complicated with
// block size.
read(20 * 1024 * 1024, true);
}
private void read(int blobLength, boolean skipRangeTests) throws Exception {
createAndWriteBlob(blobLength);
// Complete read.
byte[] buffer = MicroKernelInputStream.readFully(mk, blobId);
Assert.assertEquals(blob.length, buffer.length);
Assert.assertTrue(Arrays.equals(blob, buffer));
if (skipRangeTests) {
return;
}
// Range end from end.
buffer = new byte[blob.length / 2];
int totalBytes = mk.read(blobId, (blob.length / 2) - 1, buffer, 0, blob.length / 2);
Assert.assertEquals(blob.length / 2, totalBytes);
for (int i = 0; i < buffer.length; i++) {
Assert.assertEquals(blob[((blob.length / 2) - 1) + i], buffer[i]);
}
// Range from start.
buffer = new byte[blob.length / 2];
totalBytes = mk.read(blobId, 0, buffer, 0, blob.length / 2);
Assert.assertEquals(blob.length / 2, totalBytes);
for (int i = 0; i < buffer.length; i++) {
Assert.assertEquals(blob[i], buffer[i]);
}
}
private void createAndWriteBlob(int blobLength) throws Exception {
blob = new byte[blobLength];
for (int i = 0; i < blob.length; i++) {
blob[i] = (byte)1;
}
blobId = mk.write(new ByteArrayInputStream(blob));
}
}