001/*
002 *  Copyright 2016 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.core.resources;
017
018import java.io.IOException;
019import java.io.InputStream;
020import java.io.OutputStream;
021
022import org.apache.cocoon.ProcessingException;
023import org.apache.commons.io.IOUtils;
024
025/**
026 * Default resource handler. It accepts range requests and is able to return its length.
027 */
028public class DefaultResourceHandler extends SimpleResourceHandler
029{
030    public boolean acceptRanges()
031    {
032        return true;
033    }
034    
035    public void generate(OutputStream out, long offset, long length) throws IOException, ProcessingException
036    {
037        try (InputStream is = _source.getInputStream())
038        {
039            IOUtils.copyLarge(is, out, offset, length);
040        }
041    }
042
043    @Override
044    public long getLength()
045    {
046        return _source.getContentLength();
047    }
048}