/*
 * Copyright 2011 Steve Coughlan.
 *
 * Licensed 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 com.google.bitcoin.core;

import java.io.IOException;
import java.io.OutputStream;

/**
 * Parent class for header only messages that don't have a payload.
 * Currently this includes getaddr, ping, verack as well as the special bitcoinj class UnknownMessage
 *
 * @author Steve Coughlan
 */
public abstract class EmptyMessage extends Message {

	public EmptyMessage() {
	}

	public EmptyMessage(NetworkParameters params) {
		super(params);
	}

	public EmptyMessage(NetworkParameters params, byte[] msg, int offset) throws ProtocolException {
		super(params, msg, offset);
	}

	@Override
	final protected void bitcoinSerializeToStream(OutputStream stream) throws IOException {
	}

	@Override
	int getMessageSize() {
		return 0;
	}

	/* (non-Javadoc)
	 * @see com.google.bitcoin.core.Message#parse()
	 */
	@Override
	void parse() throws ProtocolException {
	}
}

@@ -1,603 +1,4 @@
-/*%0A * Copyright 2011 Steve Coughlan.%0A *%0A * Licensed under the Apache License, Version 2.0 (the %22License%22);%0A * you may not use this file except in compliance with the License.%0A * You may obtain a copy of the License at%0A *%0A *    http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0A%0A
 pack
@@ -128,17 +128,16 @@
  message
-s
  that do
@@ -158,140 +158,26 @@
 load
-.
 %0A * 
-Currently this includes getaddr, ping, verack as well as the special bitcoinj class UnknownMessage%0A *%0A * @author Steve Coughlan
+@author git%0A *
 %0A */
@@ -399,16 +399,37 @@
 t offset
+, int protocolVersion
 ) throws
@@ -480,92 +480,101 @@
 fset
-);%0A%09%7D%0A%0A%09@Override%0A%09final protected void bitcoinSerializeToStream(OutputStream stream
+, protocolVersion);%0A%09%7D%0A%0A%09public EmptyMessage(NetworkParameters params, byte%5B%5D msg, int offset
 ) th
@@ -578,18 +578,24 @@
  throws 
-IO
+Protocol
 Exceptio
@@ -603,157 +603,108 @@
  %7B%0A%09
-%7D%0A%0A%09@Override%0A%09int getMessageSize() %7B%0A%09%09return 0;%0A%09%7D%0A%0A%09/* (non-Javadoc)%0A%09 * @see com.google.bitcoin.core.Message#parse()%0A%09 */%0A%09@Override%0A%09void parse(
+%09super(params, msg, offset);%0A%09%7D%0A%0A%09@Override%0A%09final void bitcoinSerializeToStream(OutputStream stream
 ) th
@@ -704,32 +704,26 @@
 eam) throws 
-Protocol
+IO
 Exception %7B%0A
@@ -725,10 +725,11 @@
 on %7B%0A%09%7D%0A
+%0A
 %7D%0A

Simplify EmptyMessage. Gets to patch 0 from Steve.