Java tutorial
/* * 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.cassandra.streaming; import java.io.Serializable; import java.util.Set; import java.util.UUID; import com.google.common.base.Predicate; import com.google.common.collect.Iterables; /** * Current snapshot of streaming progress. */ public class StreamState implements Serializable { public final UUID planId; public final String description; public final Set<SessionInfo> sessions; public StreamState(UUID planId, String description, Set<SessionInfo> sessions) { this.planId = planId; this.description = description; this.sessions = sessions; } public boolean hasFailedSession() { return Iterables.any(sessions, new Predicate<SessionInfo>() { public boolean apply(SessionInfo session) { return session.isFailed(); } }); } }