| /* |
| * 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.logging.log4j.core.layout; |
| |
| import java.nio.ByteBuffer; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * ByteBufferDestination for test purposes that counts how much data was added. |
| */ |
| public class SpyByteBufferDestination implements ByteBufferDestination { |
| public final ByteBuffer buffer; |
| public final ByteBuffer drained; |
| public final List<Data> drainPoints = new ArrayList<>(); |
| |
| public static class Data { |
| public final int position; |
| public final int limit; |
| |
| public Data(final int position, final int limit) { |
| this.position = position; |
| this.limit = limit; |
| } |
| |
| public int length() { |
| return limit - position; |
| } |
| } |
| |
| public SpyByteBufferDestination(final int bufferSize, final int destinationSize) { |
| buffer = ByteBuffer.wrap(new byte[bufferSize]); |
| drained = ByteBuffer.wrap(new byte[destinationSize]); |
| } |
| |
| @Override |
| public ByteBuffer getByteBuffer() { |
| return buffer; |
| } |
| |
| @Override |
| public ByteBuffer drain(final ByteBuffer buf) { |
| buf.flip(); |
| drainPoints.add(new Data(buf.position(), buf.limit())); |
| drained.put(buf); |
| buf.clear(); |
| return buf; |
| } |
| |
| @Override |
| public void writeBytes(final ByteBuffer data) { |
| ByteBufferDestinationHelper.writeToUnsynchronized(data, this); |
| } |
| |
| @Override |
| public void writeBytes(final byte[] data, final int offset, final int length) { |
| ByteBufferDestinationHelper.writeToUnsynchronized(data, offset, length, this); |
| } |
| } |