| // |
| // ======================================================================== |
| // 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.http.MimeTypes.Type; |
| import org.eclipse.jetty.util.BufferUtil; |
| import org.eclipse.jetty.util.resource.Resource; |
| |
| |
| /* ------------------------------------------------------------ */ |
| /** HttpContent created from a {@link Resource}. |
| * <p>The HttpContent is used to server static content that is not |
| * cached. So fields and values are only generated as need be an not |
| * kept for reuse</p> |
| */ |
| public class ResourceHttpContent implements HttpContent |
| { |
| final Resource _resource; |
| final String _contentType; |
| final int _maxBuffer; |
| HttpContent _gzip; |
| String _etag; |
| |
| /* ------------------------------------------------------------ */ |
| public ResourceHttpContent(final Resource resource, final String contentType) |
| { |
| this(resource,contentType,-1,null); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| public ResourceHttpContent(final Resource resource, final String contentType, int maxBuffer) |
| { |
| this(resource,contentType,maxBuffer,null); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| public ResourceHttpContent(final Resource resource, final String contentType, int maxBuffer, HttpContent gzip) |
| { |
| _resource=resource; |
| _contentType=contentType; |
| _maxBuffer=maxBuffer; |
| _gzip=gzip; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public String getContentTypeValue() |
| { |
| return _contentType; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public HttpField getContentType() |
| { |
| return _contentType==null?null:new HttpField(HttpHeader.CONTENT_TYPE,_contentType); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public HttpField getContentEncoding() |
| { |
| return null; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public String getContentEncodingValue() |
| { |
| return null; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public String getCharacterEncoding() |
| { |
| return _contentType==null?null:MimeTypes.getCharsetFromContentType(_contentType); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public Type getMimeType() |
| { |
| return _contentType==null?null:MimeTypes.CACHE.get(MimeTypes.getContentTypeWithoutCharset(_contentType)); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public HttpField getLastModified() |
| { |
| long lm = _resource.lastModified(); |
| return lm>=0?new HttpField(HttpHeader.LAST_MODIFIED,DateGenerator.formatDate(lm)):null; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public String getLastModifiedValue() |
| { |
| long lm = _resource.lastModified(); |
| return lm>=0?DateGenerator.formatDate(lm):null; |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public ByteBuffer getDirectBuffer() |
| { |
| if (_resource.length()<=0 || _maxBuffer>0 && _maxBuffer<_resource.length()) |
| return null; |
| try |
| { |
| return BufferUtil.toBuffer(_resource,true); |
| } |
| catch(IOException e) |
| { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public HttpField getETag() |
| { |
| return new HttpField(HttpHeader.ETAG,getETagValue()); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public String getETagValue() |
| { |
| return _resource.getWeakETag(); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public ByteBuffer getIndirectBuffer() |
| { |
| if (_resource.length()<=0 || _maxBuffer>0 && _maxBuffer<_resource.length()) |
| return null; |
| try |
| { |
| return BufferUtil.toBuffer(_resource,false); |
| } |
| catch(IOException e) |
| { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public HttpField getContentLength() |
| { |
| long l=_resource.length(); |
| return l==-1?null:new HttpField.LongValueHttpField(HttpHeader.CONTENT_LENGTH,_resource.length()); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public long getContentLengthValue() |
| { |
| 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,gz=%b}",this.getClass().getSimpleName(),hashCode(),_resource,_gzip!=null); |
| } |
| |
| /* ------------------------------------------------------------ */ |
| @Override |
| public HttpContent getGzipContent() |
| { |
| return _gzip==null?null:new GzipHttpContent(this,_gzip); |
| } |
| |
| } |