Java Thread Callable waitForCondition(Callable condition, Callable callback, int seconds)

Description

wait For Condition

License

Apache License

Declaration

public static void waitForCondition(Callable<Boolean> condition, Callable<Void> callback, int seconds)
            throws Exception 

Method Source Code

//package com.java2s;
/*/*w  w  w.j a va2  s.  c  o  m*/
 Licensed to Diennea S.r.l. under one
 or more contributor license agreements. See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership. Diennea S.r.l. 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.
    
 */

import java.util.concurrent.Callable;

public class Main {
    public static void waitForCondition(Callable<Boolean> condition, Callable<Void> callback, int seconds)
            throws Exception {
        try {
            while (seconds-- > 0) {
                if (condition.call()) {
                    return;
                }
                if (callback != null) {
                    callback.call();
                }
                Thread.sleep(500);
            }
        } catch (InterruptedException ee) {
            ee.printStackTrace();
            throw ee;
        } catch (Exception ee) {
            throw ee;
        }

        throw new Exception("condition not met in time!");
    }
}

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5. waitFor(Object o, long ms, Callable c)