/*
* Copyright 2014 the bitcoinj authors
*
* 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 org.bitcoinj.core;
import com.google.common.collect.ImmutableList;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
public class GetUTXOsMessage extends Message {
public static final int MIN_PROTOCOL_VERSION = 70003;
private boolean includeMempool;
private ImmutableList<TransactionOutPoint> outPoints;
public GetUTXOsMessage(NetworkParameters params, List<TransactionOutPoint> outPoints, boolean includeMempool) {
super(params);
this.outPoints = ImmutableList.copyOf(outPoints);
this.includeMempool = includeMempool;
}
public GetUTXOsMessage(NetworkParameters params, byte[] payloadBytes) {
super(params, payloadBytes, 0);
}
@Override
protected void parse() throws ProtocolException {
includeMempool = readBytes(1)[0] == 1;
long numOutpoints = readVarInt();
ImmutableList.Builder<TransactionOutPoint> list = ImmutableList.builder();
for (int i = 0; i < numOutpoints; i++) {
TransactionOutPoint outPoint = new TransactionOutPoint(params, payload, cursor);
list.add(outPoint);
cursor += outPoint.getMessageSize();
}
outPoints = list.build();
length = cursor;
}
public boolean getIncludeMempool() {
return includeMempool;
}
public ImmutableList<TransactionOutPoint> getOutPoints() {
return outPoints;
}
@Override
protected void parseLite() throws ProtocolException {
// Not needed.
}
@Override
void bitcoinSerializeToStream(OutputStream stream) throws IOException {
stream.write(new byte[]{1}); // include mempool.
stream.write(new VarInt(outPoints.size()).encode());
for (TransactionOutPoint outPoint : outPoints) {
outPoint.bitcoinSerializeToStream(stream);
}
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
GetUTXOsMessage that = (GetUTXOsMessage) o;
if (includeMempool != that.includeMempool) return false;
if (!outPoints.equals(that.outPoints)) return false;
return true;
}
@Override
public int hashCode() {
int result = (includeMempool ? 1 : 0);
result = 31 * result + outPoints.hashCode();
return result;
}
}