| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE |
| * file distributed with this work for additional information regarding copyright ownership. The ASF 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.apache.tuweni.plumtree; |
| |
| import org.apache.tuweni.bytes.Bytes; |
| |
| import javax.annotation.Nullable; |
| |
| /** |
| * Interface to sending messages to other peers. |
| */ |
| public interface MessageSender { |
| |
| /** |
| * Types of verbs supported by the dialect |
| */ |
| enum Verb { |
| IHAVE, GRAFT, PRUNE, GOSSIP |
| } |
| |
| /** |
| * Sends bytes to a peer. |
| * |
| * @param verb the type of message |
| * @param attributes the attributes of message |
| * @param peer the target of the message |
| * @param hash the hash of the message |
| * @param payload the bytes to send |
| */ |
| void sendMessage(Verb verb, String attributes, Peer peer, Bytes hash, @Nullable Bytes payload); |
| |
| } |