Here you can find the source of getMinIn(Map
public static long getMinIn(Map<String, Future<Long>> responses)
//package com.java2s; /**/*from ww w .ja v a2s . co m*/ * * Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com> * * ==================================================================== * 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. * ==================================================================== */ import java.util.Collections; import java.util.Map; import java.util.concurrent.ExecutionException; import java.util.concurrent.Future; import com.google.common.base.Function; import com.google.common.collect.Iterables; import com.google.common.collect.Sets; public class Main { public static long getMinIn(Map<String, Future<Long>> responses) { Iterable<Long> collection = Iterables.transform(responses.values(), new Function<Future<Long>, Long>() { @Override public Long apply(Future<Long> from) { try { return from.get(); } catch (InterruptedException e) { } catch (ExecutionException e) { } return null; } }); long time = Collections.min(Sets.newHashSet(collection)); return time; } }