com.rogiel.httpchannel.service.channel.InputStreamDownloadChannel Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of httpchannel-util Show documentation

Module providing several utilities to service implementations. Though this module is not required to implement services, it contains several shortcuts that can help implementing services.

The newest version!

/*
 * 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 com.rogiel.httpchannel.service.channel;

import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;

import com.rogiel.httpchannel.service.DownloadChannel;
import com.rogiel.httpchannel.service.DownloadService;
import com.rogiel.httpchannel.service.Downloader;

/**
 * @author Rogiel
 * 
 */
public class InputStreamDownloadChannel implements DownloadChannel {
	private final ReadableByteChannel channel;

	private final DownloadService service;
	private final Downloader downloader;

	private final long length;
	private final String filename;

	public InputStreamDownloadChannel(DownloadService service,
			Downloader downloader, InputStream in, final long length,
			final String filename) {
		this.service = service;
		this.downloader = downloader;
		this.channel = Channels.newChannel(in);
		this.length = length;
		this.filename = filename;
	}

	@Override
	public int read(ByteBuffer dst) throws IOException {
		return channel.read(dst);
	}

	@Override
	public boolean isOpen() {
		return channel.isOpen();
	}

	@Override
	public void close() throws IOException {
		channel.close();
	}

	@Override
	public long size() {
		return length;
	}

	@Override
	public String filename() {
		return filename;
	}

	@Override
	public DownloadService getService() {
		return service;
	}

	@Override
	public Downloader getDownloader() {
		return downloader;
	}
}