Importing upstream Jetty jetty-9.2.1.v20140609

[gigi.git] / lib / jetty / org / eclipse / jetty / http / HttpContent.java

diff --git a/lib/jetty/org/eclipse/jetty/http/HttpContent.java b/lib/jetty/org/eclipse/jetty/http/HttpContent.java
new file mode 100644 (file)
index 0000000..ebae56d
--- /dev/null
+++ b/lib/jetty/org/eclipse/jetty/http/HttpContent.java
@@ -0,0 +1,172 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2014 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();
+        }
+    }
+}