Added ChunkedFile interface

src/main/java/org/jboss/netty/handler/stream/ChunkedFile.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2010 Red Hat, Inc.
+ *
+ * Red Hat 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 org.jboss.netty.handler.stream;
+
+import java.nio.channels.FileChannel;
+
+
+/**
+ * A {@link ChunkedInput} that fetches data from a file chunk by chunk.
+ *
+ * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
+ * @author <a href="http://gleamynode.net/">Trustin Lee</a>
+ * @version $Rev: 2180 $, $Date: 2010-02-19 13:11:59 +0900 (Fri, 19 Feb 2010) $
+ */
+public interface ChunkedFile extends ChunkedInput {
+
+    /**
+     * Returns the {@link FileChannel} that this input fetches chunks from.
+     */
+    FileChannel getSource();
+
+    /**
+     * Returns the offset in the file where the transfer began.
+     */
+    long getStartOffset();
+
+    /**
+     * Returns the offset in the file where the transfer will end.
+     */
+    long getEndOffset();
+
+    /**
+     * Returns the offset in the file where the transfer is happening currently.
+     */
+    long getCurrentOffset();
+}

src/main/java/org/jboss/netty/handler/stream/ChunkedNioFile.java

@@ -32,7 +32,7 @@ import java.nio.channels.FileChannel;
  * @author Frederic Bregier
  * @version $Rev$, $Date$
  */
-public class ChunkedNioFile implements ChunkedInput {
+public class ChunkedNioFile implements ChunkedFile {
 
     private final FileChannel in;
     private long startOffset;
@@ -110,23 +110,18 @@ public class ChunkedNioFile implements ChunkedInput {
         endOffset = offset + length;
     }
 
-    /**
-     * Returns the offset in the file where the transfer began.
-     */
+    public FileChannel getSource() {
+        return in;
+    }
+
     public long getStartOffset() {
         return startOffset;
     }
 
-    /**
-     * Returns the offset in the file where the transfer will end.
-     */
     public long getEndOffset() {
         return endOffset;
     }
 
-    /**
-     * Returns the offset in the file where the transfer is happening currently.
-     */
     public long getCurrentOffset() {
         return offset;
     }

src/main/java/org/jboss/netty/handler/stream/ChunkedOioFile.java

@@ -20,6 +20,7 @@ import static org.jboss.netty.buffer.ChannelBuffers.*;
 import java.io.File;
 import java.io.IOException;
 import java.io.RandomAccessFile;
+import java.nio.channels.FileChannel;
 
 /**
  * A {@link ChunkedInput} that fetches data from a file chunk by chunk.
@@ -28,7 +29,7 @@ import java.io.RandomAccessFile;
  * @author <a href="http://gleamynode.net/">Trustin Lee</a>
  * @version $Rev$, $Date$
  */
-public class ChunkedOioFile implements ChunkedInput {
+public class ChunkedOioFile implements ChunkedFile {
 
     private final RandomAccessFile file;
     private final long startOffset;
@@ -104,23 +105,18 @@ public class ChunkedOioFile implements ChunkedInput {
         file.seek(offset);
     }
 
-    /**
-     * Returns the offset in the file where the transfer began.
-     */
+    public FileChannel getSource() {
+        return file.getChannel();
+    }
+
     public long getStartOffset() {
         return startOffset;
     }
 
-    /**
-     * Returns the offset in the file where the transfer will end.
-     */
     public long getEndOffset() {
         return endOffset;
     }
 
-    /**
-     * Returns the offset in the file where the transfer is happening currently.
-     */
     public long getCurrentOffset() {
         return offset;
     }