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10 package org.mule.util.store;
11
12 import org.mule.api.MuleContext;
13 import org.mule.api.store.ObjectStore;
14 import org.mule.api.context.MuleContextAware;
15 import org.mule.api.lifecycle.Initialisable;
16 import org.mule.api.lifecycle.InitialisationException;
17 import org.mule.api.lifecycle.Disposable;
18 import org.mule.config.i18n.CoreMessages;
19 import org.mule.util.concurrent.DaemonThreadFactory;
20 import org.mule.util.UUID;
21
22 import org.apache.commons.logging.Log;
23 import org.apache.commons.logging.LogFactory;
24 import edu.emory.mathcs.backport.java.util.concurrent.TimeUnit;
25 import edu.emory.mathcs.backport.java.util.concurrent.ScheduledThreadPoolExecutor;
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30 public abstract class AbstractMonitoredObjectStore implements ObjectStore, Runnable, MuleContextAware, Initialisable, Disposable
31 {
32 protected final Log logger = LogFactory.getLog(this.getClass());
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50 protected ScheduledThreadPoolExecutor scheduler;
51 protected int maxEntries = 4000;
52 protected int entryTTL = -1;
53 protected int expirationInterval = 1000;
54 protected String name;
55 protected MuleContext context;
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57
58 public void initialise() throws InitialisationException
59 {
60 if (name == null)
61 {
62 name = UUID.getUUID();
63
64 }
65
66 if (expirationInterval <= 0)
67 {
68 throw new IllegalArgumentException(CoreMessages.propertyHasInvalidValue("expirationInterval",
69 new Integer(expirationInterval)).toString());
70 }
71
72 if (scheduler == null)
73 {
74 this.scheduler = new ScheduledThreadPoolExecutor(1);
75 scheduler.setThreadFactory(new DaemonThreadFactory(name + "-Monitor"));
76 scheduler.scheduleWithFixedDelay(this, 0, expirationInterval, TimeUnit.MILLISECONDS);
77 }
78 }
79
80 public final void run()
81 {
82 expire();
83 }
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90 public void dispose()
91 {
92 if(scheduler!=null)
93 {
94 scheduler.shutdown();
95 }
96 }
97
98 public void setEntryTTL(int entryTTL)
99 {
100 this.entryTTL = entryTTL;
101 }
102
103 public void setExpirationInterval(int expirationInterval)
104 {
105 this.expirationInterval = expirationInterval;
106 }
107
108 public void setMaxEntries(int maxEntries)
109 {
110 this.maxEntries = maxEntries;
111 }
112
113 public void setScheduler(ScheduledThreadPoolExecutor scheduler)
114 {
115 this.scheduler = scheduler;
116 }
117
118 public void setName(String id)
119 {
120 this.name = id;
121 }
122
123 public void setMuleContext(MuleContext context)
124 {
125 this.context = context;
126 }
127
128 public int getEntryTTL()
129 {
130 return entryTTL;
131 }
132
133 public int getExpirationInterval()
134 {
135 return expirationInterval;
136 }
137
138 public int getMaxEntries()
139 {
140 return maxEntries;
141 }
142
143 public String getName()
144 {
145 return name;
146 }
147
148 public ScheduledThreadPoolExecutor getScheduler()
149 {
150 return scheduler;
151 }
152
153 protected abstract void expire();
154
155 }