| // |
| // ======================================================================== |
| // Copyright (c) 1995-2017 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.http; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.ReadableByteChannel; |
| |
| import org.eclipse.jetty.util.BufferUtil; |
| import org.eclipse.jetty.util.resource.Resource; |
| |
| /* ------------------------------------------------------------ */ |
| /** HttpContent. |
| * |
| * |
| */ |
| public interface HttpContent |
| { |
| String getContentType(); |
| String getLastModified(); |
| ByteBuffer getIndirectBuffer(); |
| ByteBuffer getDirectBuffer(); |
| String getETag(); |
| Resource getResource(); |
| long getContentLength(); |
| InputStream getInputStream() throws IOException; |
| ReadableByteChannel getReadableByteChannel() throws IOException; |
| void release(); |
| |
| /* ------------------------------------------------------------ */ |
| /* ------------------------------------------------------------ */ |
| /* ------------------------------------------------------------ */ |
| public class ResourceAsHttpContent implements HttpContent |
| { |
| final Resource _resource; |
| final String _mimeType; |
| final int _maxBuffer; |
| final String _etag; |
| |
| /* ------------------------------------------------------------ */ |
| public ResourceAsHttpContent(final Resource resource, final String mimeType) |
| { |
| this(resource,mimeType,-1,false); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| public ResourceAsHttpContent(final Resource resource, final String mimeType, int maxBuffer) |
| { |
| this(resource,mimeType,maxBuffer,false); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| public ResourceAsHttpContent(final Resource resource, final String mimeType, boolean etag) |
| { |
| this(resource,mimeType,-1,etag); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| public ResourceAsHttpContent(final Resource resource, final String mimeType, int maxBuffer, boolean etag) |
| { |
| _resource=resource; |
| _mimeType=mimeType; |
| _maxBuffer=maxBuffer; |
| _etag=etag?resource.getWeakETag():null; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public String getContentType() |
| { |
| return _mimeType; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public String getLastModified() |
| { |
| return null; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public ByteBuffer getDirectBuffer() |
| { |
| if (_resource.length()<=0 || _maxBuffer<_resource.length()) |
| return null; |
| try |
| { |
| return BufferUtil.toBuffer(_resource,true); |
| } |
| catch(IOException e) |
| { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public String getETag() |
| { |
| return _etag; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public ByteBuffer getIndirectBuffer() |
| { |
| if (_resource.length()<=0 || _maxBuffer<_resource.length()) |
| return null; |
| try |
| { |
| return BufferUtil.toBuffer(_resource,false); |
| } |
| catch(IOException e) |
| { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public long getContentLength() |
| { |
| return _resource.length(); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public InputStream getInputStream() throws IOException |
| { |
| return _resource.getInputStream(); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public ReadableByteChannel getReadableByteChannel() throws IOException |
| { |
| return _resource.getReadableByteChannel(); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public Resource getResource() |
| { |
| return _resource; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public void release() |
| { |
| _resource.close(); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return String.format("%s@%x{r=%s}",this.getClass().getSimpleName(),hashCode(),_resource); |
| } |
| } |
| } |