| /* |
| * ==================================================================== |
| * 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.impl.nio; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.ReadableByteChannel; |
| import java.nio.channels.WritableByteChannel; |
| |
| import org.apache.hc.core5.util.Args; |
| |
| /** |
| * A buffer that expand its capacity on demand. Internally, this class is backed |
| * by an instance of {@link ByteBuffer}. |
| * <p> |
| * This class is not thread safe. |
| * </p> |
| * @since 5.0 |
| */ |
| public class BufferedData extends ExpandableBuffer { |
| |
| public static BufferedData allocate(final int bufferSize) { |
| return new BufferedData(bufferSize); |
| } |
| |
| protected BufferedData(final int bufferSize) { |
| super(bufferSize); |
| } |
| |
| @Override |
| public final boolean hasData() { |
| return super.hasData(); |
| } |
| |
| @Override |
| public final int length() { |
| return super.length(); |
| } |
| |
| @Override |
| public final int capacity() { |
| return super.capacity(); |
| } |
| |
| @Override |
| public final void clear() { |
| super.clear(); |
| } |
| |
| public final void put(final ByteBuffer src) { |
| Args.notNull(src, "Data source"); |
| setInputMode(); |
| final int requiredCapacity = buffer().position() + src.remaining(); |
| ensureAdjustedCapacity(requiredCapacity); |
| buffer().put(src); |
| } |
| |
| public final int readFrom(final ReadableByteChannel channel) throws IOException { |
| Args.notNull(channel, "Channel"); |
| setInputMode(); |
| if (!buffer().hasRemaining()) { |
| expand(); |
| } |
| return channel.read(buffer()); |
| } |
| |
| public final int writeTo(final WritableByteChannel dst) throws IOException { |
| if (dst == null) { |
| return 0; |
| } |
| setOutputMode(); |
| return dst.write(buffer()); |
| } |
| |
| public final ByteBuffer data() { |
| setOutputMode(); |
| return buffer(); |
| } |
| |
| } |