Jabit/core/src/main/java/ch/dissem/bitmessage/entity/Addr.java

76 lines
2.0 KiB
Java

/*
* Copyright 2015 Christian Basler
*
* 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 ch.dissem.bitmessage.entity;
import ch.dissem.bitmessage.entity.valueobject.NetworkAddress;
import ch.dissem.bitmessage.utils.Encode;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
/**
* The 'addr' command holds a list of known active Bitmessage nodes.
*/
public class Addr implements MessagePayload {
private final List<NetworkAddress> addresses;
private Addr(Builder builder) {
addresses = builder.addresses;
}
@Override
public Command getCommand() {
return Command.ADDR;
}
public List<NetworkAddress> getAddresses() {
return addresses;
}
@Override
public void write(OutputStream stream) throws IOException {
Encode.varInt(addresses.size(), stream);
for (NetworkAddress address : addresses) {
address.write(stream);
}
}
public static final class Builder {
private List<NetworkAddress> addresses = new ArrayList<NetworkAddress>();
public Builder() {
}
public Builder addresses(Collection<NetworkAddress> addresses){
this.addresses.addAll(addresses);
return this;
}
public Builder addAddress(final NetworkAddress address) {
this.addresses.add(address);
return this;
}
public Addr build() {
return new Addr(this);
}
}
}