/*- * -\-\- * Helios Services * -- * Copyright (C) 2016 Spotify AB * -- * 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.spotify.helios.servicescommon.coordination; import org.apache.curator.framework.api.transaction.CuratorTransaction; public class CheckWithVersion implements ZooKeeperOperation { private final String path; private final int version; public CheckWithVersion(final String path, final int version) { this.path = path; this.version = version; } @Override public void register(final CuratorTransaction transaction) throws Exception { transaction.check().withVersion(version).forPath(path); } @Override public String toString() { return "CheckWithVersion{" + "path='" + path + '\'' + ", version=" + version + '}'; } @Override public boolean equals(final Object obj) { if (this == obj) { return true; } if (obj == null || getClass() != obj.getClass()) { return false; } final CheckWithVersion that = (CheckWithVersion) obj; if (version != that.version) { return false; } return path != null ? path.equals(that.path) : that.path == null; } @Override public int hashCode() { int result = path != null ? path.hashCode() : 0; result = 31 * result + version; return result; } }