| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.hc.core5.http; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.CharBuffer; |
| import java.nio.channels.ClosedChannelException; |
| import java.nio.channels.WritableByteChannel; |
| import java.nio.charset.CharacterCodingException; |
| import java.nio.charset.Charset; |
| |
| public class WritableByteChannelMock implements WritableByteChannel { |
| |
| private final int capacityLimit; |
| |
| private int capacityUsed; |
| private ByteBuffer buf; |
| private boolean closed; |
| |
| public WritableByteChannelMock(final int initialSize, final int capacityLimit) { |
| this.buf = ByteBuffer.allocate(initialSize); |
| this.capacityLimit = capacityLimit; |
| } |
| |
| public WritableByteChannelMock(final int initialSize) { |
| this(initialSize, 0); |
| } |
| |
| private void expandCapacity(final int capacity) { |
| final ByteBuffer oldbuffer = this.buf; |
| this.buf = ByteBuffer.allocate(capacity); |
| oldbuffer.flip(); |
| this.buf.put(oldbuffer); |
| } |
| |
| private void ensureCapacity(final int requiredCapacity) { |
| if (requiredCapacity > this.buf.capacity()) { |
| expandCapacity(requiredCapacity); |
| } |
| } |
| |
| @Override |
| public int write(final ByteBuffer src) throws IOException { |
| if (this.closed) { |
| throw new ClosedChannelException(); |
| } |
| final int len = src.remaining(); |
| ensureCapacity(this.buf.position() + len); |
| if (this.capacityLimit > 0) { |
| final int chunk = Math.min(this.capacityLimit - this.capacityUsed, len); |
| if (chunk > 0) { |
| final int limit = src.limit(); |
| src.limit(src.position() + chunk); |
| this.buf.put(src); |
| src.limit(limit); |
| this.capacityUsed += chunk; |
| return chunk; |
| } |
| return 0; |
| } |
| this.buf.put(src); |
| return len; |
| } |
| |
| @Override |
| public boolean isOpen() { |
| return !this.closed; |
| } |
| |
| @Override |
| public void close() throws IOException { |
| this.closed = true; |
| } |
| |
| public void flush() { |
| this.capacityUsed = 0; |
| } |
| |
| public void reset() { |
| this.capacityUsed = 0; |
| this.buf.clear(); |
| } |
| |
| public byte[] toByteArray() { |
| final ByteBuffer dup = this.buf.duplicate(); |
| dup.flip(); |
| final byte[] bytes = new byte[dup.remaining()]; |
| dup.get(bytes); |
| return bytes; |
| } |
| |
| public String dump(final Charset charset) throws CharacterCodingException { |
| this.buf.flip(); |
| final CharBuffer charBuffer = charset.newDecoder().decode(this.buf); |
| this.buf.compact(); |
| return charBuffer.toString(); |
| } |
| |
| } |