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1   /*
2    * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
3    * The software in this package is published under the terms of the CPAL v1.0
4    * license, a copy of which has been included with this distribution in the
5    * LICENSE.txt file.
6    */
7   package org.mule.util.counters.impl;
8   
9   import org.mule.util.counters.Counter;
10  import org.mule.util.counters.CounterFactory.Type;
11  
12  import java.util.ArrayList;
13  import java.util.Collections;
14  import java.util.Iterator;
15  import java.util.List;
16  
17  public abstract class AbstractCounter implements Counter
18  {
19  
20      private final Type type;
21      private final String name;
22      private final List aggregates;
23  
24      public AbstractCounter(String name, Type type)
25      {
26          super();
27          this.name = name;
28          this.type = type;
29          this.aggregates = Collections.synchronizedList(new ArrayList());
30      }
31  
32      public Type getType()
33      {
34          return this.type;
35      }
36  
37      public String getName()
38      {
39          return this.name;
40      }
41  
42      public abstract double increment();
43  
44      public abstract double incrementBy(double value);
45  
46      public abstract double decrement();
47  
48      public abstract void setRawValue(double value);
49  
50      public abstract double nextValue();
51  
52      protected void addAggregate(AggregateCounter counter)
53      {
54          this.aggregates.add(counter);
55      }
56  
57      protected void propagate()
58      {
59          Iterator it = this.aggregates.iterator();
60          while (it.hasNext())
61          {
62              AggregateCounter agg = (AggregateCounter) it.next();
63              agg.compute();
64          }
65      }
66  
67  }