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Java > Open Source Codes > org > apache > activemq > broker > ProgressPrinter


1 /**
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one or more
4  * contributor license agreements. See the NOTICE file distributed with
5  * this work for additional information regarding copyright ownership.
6  * The ASF licenses this file to You under the Apache License, Version 2.0
7  * (the "License"); you may not use this file except in compliance with
8  * the License. You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18
19 package org.apache.activemq.broker;
20
21
22 public class ProgressPrinter {
23
24     private final long total;
25     private final long interval;
26     long percentDone=0;
27     long counter=0;
28     
29     public ProgressPrinter(long total, long interval) {
30         this.total=total;
31         this.interval = interval;
32     }
33     
34     synchronized public void increment() {
35         update(++counter);
36     }
37     
38     synchronized public void update(long current) {
39         long at = 100*current/total;
40         if( (percentDone/interval) != (at/interval) ) {
41             percentDone=at;
42             System.out.println("Completed: "+percentDone+"%");
43         }
44     }
45 }
46
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