Resolved issue: NETTY-247 Make HttpMessage, HttpChunk and their default implementation completely mutable

src/main/java/org/jboss/netty/handler/codec/http/DefaultHttpChunk.java

@@ -26,14 +26,22 @@ import org.jboss.netty.buffer.ChannelBuffer;
  */
 public class DefaultHttpChunk implements HttpChunk {
 
-    private final ChannelBuffer content;
-    private final boolean last;
+    private ChannelBuffer content;
+    private boolean last;
 
     /**
      * Creates a new instance with the specified chunk content. If an empty
      * buffer is specified, this chunk becomes the 'end of content' marker.
      */
     public DefaultHttpChunk(ChannelBuffer content) {
+        setContent(content);
+    }
+
+    public ChannelBuffer getContent() {
+        return content;
+    }
+
+    public void setContent(ChannelBuffer content) {
         if (content == null) {
             throw new NullPointerException("content");
         }
@@ -41,10 +49,6 @@ public class DefaultHttpChunk implements HttpChunk {
         this.content = content;
     }
 
-    public ChannelBuffer getContent() {
-        return content;
-    }
-
     public boolean isLast() {
         return last;
     }

src/main/java/org/jboss/netty/handler/codec/http/DefaultHttpChunkTrailer.java

@@ -130,4 +130,8 @@ public class DefaultHttpChunkTrailer implements HttpChunkTrailer {
     public ChannelBuffer getContent() {
         return ChannelBuffers.EMPTY_BUFFER;
     }
+
+    public void setContent(ChannelBuffer content) {
+        throw new IllegalStateException("read-only");
+    }
 }

src/main/java/org/jboss/netty/handler/codec/http/DefaultHttpMessage.java

@@ -37,8 +37,8 @@ import org.jboss.netty.util.internal.CaseIgnoringComparator;
  */
 public class DefaultHttpMessage implements HttpMessage {
 
-    private final HttpVersion version;
     private final Map<String, List<String>> headers = new TreeMap<String, List<String>>(CaseIgnoringComparator.INSTANCE);
+    private HttpVersion version;
     private ChannelBuffer content = ChannelBuffers.EMPTY_BUFFER;
     private boolean chunked;
 
@@ -46,10 +46,7 @@ public class DefaultHttpMessage implements HttpMessage {
      * Creates a new instance.
      */
     protected DefaultHttpMessage(final HttpVersion version) {
-        if (version == null) {
-            throw new NullPointerException("version");
-        }
-        this.version = version;
+        setProtocolVersion(version);
     }
 
     public void addHeader(final String name, final String value) {
@@ -190,6 +187,13 @@ public class DefaultHttpMessage implements HttpMessage {
         return version;
     }
 
+    public void setProtocolVersion(HttpVersion version) {
+        if (version == null) {
+            throw new NullPointerException("version");
+        }
+        this.version = version;
+    }
+
     public ChannelBuffer getContent() {
         return content;
     }

src/main/java/org/jboss/netty/handler/codec/http/DefaultHttpRequest.java

@@ -25,8 +25,8 @@ package org.jboss.netty.handler.codec.http;
  */
 public class DefaultHttpRequest extends DefaultHttpMessage implements HttpRequest {
 
-    private final HttpMethod method;
-    private final String uri;
+    private HttpMethod method;
+    private String uri;
 
     /**
      * Creates a new instance.
@@ -37,24 +37,32 @@ public class DefaultHttpRequest extends DefaultHttpMessage implements HttpReques
      */
     public DefaultHttpRequest(HttpVersion httpVersion, HttpMethod method, String uri) {
         super(httpVersion);
-        if (method == null) {
-            throw new NullPointerException("method");
-        }
-        if (uri == null) {
-            throw new NullPointerException("uri");
-        }
-        this.method = method;
-        this.uri = uri;
+        setMethod(method);
+        setUri(uri);
     }
 
     public HttpMethod getMethod() {
         return method;
     }
 
+    public void setMethod(HttpMethod method) {
+        if (method == null) {
+            throw new NullPointerException("method");
+        }
+        this.method = method;
+    }
+
     public String getUri() {
         return uri;
     }
 
+    public void setUri(String uri) {
+        if (uri == null) {
+            throw new NullPointerException("uri");
+        }
+        this.uri = uri;
+    }
+
     @Override
     public String toString() {
         return getMethod().toString() + ' ' + getUri() + ' ' + getProtocolVersion().getText();

src/main/java/org/jboss/netty/handler/codec/http/DefaultHttpResponse.java

@@ -24,7 +24,8 @@ package org.jboss.netty.handler.codec.http;
  * @version $Rev$, $Date$
  */
 public class DefaultHttpResponse extends DefaultHttpMessage implements HttpResponse {
-    private final HttpResponseStatus status;
+
+    private HttpResponseStatus status;
 
     /**
      * Creates a new instance.
@@ -34,16 +35,19 @@ public class DefaultHttpResponse extends DefaultHttpMessage implements HttpRespo
      */
     public DefaultHttpResponse(HttpVersion version, HttpResponseStatus status) {
         super(version);
-        if (status == null) {
-            throw new NullPointerException("status");
-        }
-        this.status = status;
+        setStatus(status);
     }
 
     public HttpResponseStatus getStatus() {
         return status;
     }
 
+    public void setStatus(HttpResponseStatus status) {
+        if (status == null) {
+            throw new NullPointerException("status");
+        }
+        this.status = status;
+    }
 
     @Override
     public String toString() {

src/main/java/org/jboss/netty/handler/codec/http/HttpChunk.java

@@ -47,6 +47,10 @@ public interface HttpChunk {
             return ChannelBuffers.EMPTY_BUFFER;
         }
 
+        public void setContent(ChannelBuffer content) {
+            throw new IllegalStateException("read-only");
+        }
+
         public boolean isLast() {
             return true;
         }
@@ -99,4 +103,10 @@ public interface HttpChunk {
      * marker, {@link ChannelBuffers#EMPTY_BUFFER} will be returned.
      */
     ChannelBuffer getContent();
+
+    /**
+     * Sets the content of this chunk.  If an empty buffer is specified,
+     * this chunk becomes the 'end of content' marker.
+     */
+    void setContent(ChannelBuffer content);
 }

src/main/java/org/jboss/netty/handler/codec/http/HttpMessage.java

@@ -71,6 +71,11 @@ public interface HttpMessage {
      */
     HttpVersion getProtocolVersion();
 
+    /**
+     * Sets the protocol version of this message.
+     */
+    void setProtocolVersion(HttpVersion version);
+
     /**
      * Returns the content of this message.  If there is no content or
      * {@link #isChunked()} returns {@code true}, an

src/main/java/org/jboss/netty/handler/codec/http/HttpRequest.java

@@ -41,8 +41,18 @@ public interface HttpRequest extends HttpMessage {
      */
     HttpMethod getMethod();
 
+    /**
+     * Sets the method of this request.
+     */
+    void setMethod(HttpMethod method);
+
     /**
      * Returns the URI (or path) of this request.
      */
     String getUri();
+
+    /**
+     * Sets the URI (or path) of this request.
+     */
+    void setUri(String uri);
 }

src/main/java/org/jboss/netty/handler/codec/http/HttpResponse.java

@@ -39,4 +39,9 @@ public interface HttpResponse extends HttpMessage {
      * Returns the status of this response.
      */
     HttpResponseStatus getStatus();
+
+    /**
+     * Sets the status of this response.
+     */
+    void setStatus(HttpResponseStatus status);
 }