| /* |
| * 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.sling.bgservlets.impl.nodestream; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.InputStream; |
| import java.util.Random; |
| |
| import javax.jcr.Node; |
| import javax.jcr.NodeIterator; |
| import javax.jcr.RepositoryException; |
| |
| import org.apache.sling.commons.testing.jcr.RepositoryTestBase; |
| |
| public class NodeStreamTest extends RepositoryTestBase { |
| |
| public static final String ASCII_DATA = "0123456789abcdefgjijklmnoprqstuvwxyz"; |
| public static final byte [] BINARY_DATA = getBinaryData(); |
| public static final String NAME_PREFIX = "testNode"; |
| public static final int BIG_FACTOR = 15; |
| public static final byte [] BIG_DATA = bigData(BINARY_DATA, BIG_FACTOR); |
| private int counter; |
| |
| private void assertStream(InputStream expected, InputStream actual) { |
| int offset = 0; |
| try { |
| while(true) { |
| final int exp = expected.read(); |
| if(exp == -1) { |
| assertEquals("Expecting end of actual stream at offset " + offset, -1, actual.read()); |
| break; |
| } else { |
| final int act = actual.read(); |
| assertEquals("Expecting same data at offset " + offset, exp, act); |
| } |
| offset++; |
| } |
| } catch(Exception e) { |
| fail("Exception at offset " + offset + ": " + e); |
| } |
| } |
| |
| public void testAsciiWriteAndRead() throws Exception { |
| final Node testNode = getTestRootNode().addNode(NAME_PREFIX + counter++); |
| testNode.getSession().save(); |
| final NodeOutputStream nos = new NodeOutputStream(testNode); |
| nos.write(ASCII_DATA.getBytes()); |
| nos.close(); |
| final NodeInputStream nis = new NodeInputStream(testNode); |
| assertStream(new ByteArrayInputStream(ASCII_DATA.getBytes()), nis); |
| } |
| |
| public void testBinaryWriteAndRead() throws Exception { |
| final Node testNode = getTestRootNode().addNode(NAME_PREFIX + counter++); |
| testNode.getSession().save(); |
| final NodeOutputStream nos = new NodeOutputStream(testNode); |
| nos.write(BINARY_DATA); |
| nos.close(); |
| final NodeInputStream nis = new NodeInputStream(testNode); |
| assertStream(new ByteArrayInputStream(BINARY_DATA), nis); |
| } |
| |
| public void testBigBinaryWriteAndRead() throws Exception { |
| final Node testNode = getTestRootNode().addNode(NAME_PREFIX + counter++); |
| testNode.getSession().save(); |
| final NodeOutputStream nos = new NodeOutputStream(testNode); |
| nos.write(BIG_DATA); |
| nos.close(); |
| |
| assertFalse("Expecting no pending changes in testNode session", testNode.getSession().hasPendingChanges()); |
| |
| final NodeInputStream nis = new NodeInputStream(testNode); |
| assertStream(new ByteArrayInputStream(BIG_DATA), nis); |
| } |
| |
| public void testMultipleBinaryWrites() throws Exception { |
| final Node testNode = getTestRootNode().addNode(NAME_PREFIX + counter++); |
| testNode.getSession().save(); |
| final NodeOutputStream nos = new NodeOutputStream(testNode); |
| for(int i=0; i < BIG_FACTOR; i++) { |
| nos.write(BINARY_DATA); |
| } |
| nos.close(); |
| |
| assertFalse("Expecting no pending changes in testNode session", testNode.getSession().hasPendingChanges()); |
| |
| // Stream must be stored in a hierarchy under testNode, to |
| // avoid limitations if flush() is called many times |
| final int childCount = getChildCount(testNode); |
| final int expect = 10; |
| assertTrue("Expecting > " + expect + " child nodes under testNode, got " + childCount, childCount > expect); |
| |
| final NodeInputStream nis = new NodeInputStream(testNode); |
| assertStream(new ByteArrayInputStream(BIG_DATA), nis); |
| } |
| |
| private int getChildCount(Node n) throws RepositoryException { |
| int result = 0; |
| final NodeIterator it = n.getNodes(); |
| while(it.hasNext()) { |
| result++; |
| final Node kid = it.nextNode(); |
| result += getChildCount(kid); |
| } |
| return result; |
| } |
| |
| public void testWriteWithOffset() throws Exception { |
| final Node testNode = getTestRootNode().addNode(NAME_PREFIX + counter++); |
| testNode.getSession().save(); |
| |
| final NodeOutputStream nos = new NodeOutputStream(testNode); |
| int offset = 0; |
| int step = 1271; |
| while(offset < BIG_DATA.length && step > 0) { |
| step = Math.min(step, BIG_DATA.length - offset); |
| nos.write(BIG_DATA, offset, step); |
| offset += step; |
| } |
| nos.close(); |
| |
| final NodeInputStream nis = new NodeInputStream(testNode); |
| assertStream(new ByteArrayInputStream(BIG_DATA), nis); |
| } |
| |
| public void testChunkedRead() throws Exception { |
| final Node testNode = getTestRootNode().addNode(NAME_PREFIX + counter++); |
| testNode.getSession().save(); |
| |
| final NodeOutputStream nos = new NodeOutputStream(testNode); |
| try { |
| nos.write(BIG_DATA); |
| } finally { |
| nos.close(); |
| } |
| |
| final ByteArrayOutputStream actual = new ByteArrayOutputStream(BIG_DATA.length); |
| final byte [] buffer = new byte[7432]; |
| final NodeInputStream nis = new NodeInputStream(testNode); |
| try { |
| int count = 0; |
| while((count = nis.read(buffer, 0, buffer.length)) > 0) { |
| actual.write(buffer, 0, count); |
| } |
| } finally { |
| nis.close(); |
| } |
| |
| assertStream(new ByteArrayInputStream(BIG_DATA), new ByteArrayInputStream(actual.toByteArray())); |
| } |
| |
| private static byte[] bigData(byte [] data, int multiplier) { |
| final byte [] result = new byte[data.length * multiplier]; |
| int destPos = 0; |
| for(int i=0; i < multiplier; i++) { |
| System.arraycopy(data, 0, result, destPos, data.length); |
| destPos += data.length; |
| } |
| return result; |
| } |
| |
| private static byte [] getBinaryData() { |
| final ByteArrayOutputStream os = new ByteArrayOutputStream(); |
| final Random random = new Random(); |
| for(int i=0;i < 66000; i++) { |
| os.write(random.nextInt()); |
| } |
| return os.toByteArray(); |
| } |
| } |