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package org.mule.context.notification; |
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import org.mule.api.context.notification.ServerNotification; |
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import org.mule.api.context.notification.ServerNotificationListener; |
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import java.util.ArrayList; |
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import java.util.Collection; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.Map; |
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import java.util.Set; |
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import edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap; |
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import edu.emory.mathcs.backport.java.util.concurrent.ConcurrentMap; |
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class Policy |
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{ |
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31 | 0 | private Map<Class<? extends ServerNotification>, Collection<Sender>> eventToSenders = new HashMap<Class<? extends ServerNotification>, Collection<Sender>>(); |
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35 | 0 | private ConcurrentMap knownEventsExact = new ConcurrentHashMap(); |
36 | 0 | private ConcurrentMap knownEventsSuper = new ConcurrentHashMap(); |
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Policy(Map<Class<? extends ServerNotificationListener>, Set<Class<? extends ServerNotification>>> interfaceToEvents, |
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Set<ListenerSubscriptionPair> listenerSubscriptionPairs, |
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Set<Class<? extends ServerNotificationListener>> disabledInterfaces, |
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Set<Class<? extends ServerNotification>> disabledEvents) |
45 | 0 | { |
46 | 0 | for (ListenerSubscriptionPair pair : listenerSubscriptionPairs) |
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{ |
48 | 0 | ServerNotificationListener listener = pair.getListener(); |
49 | 0 | for (Class<? extends ServerNotificationListener> iface : interfaceToEvents.keySet()) |
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{ |
51 | 0 | if (notASubclassOfAnyClassInSet(disabledInterfaces, iface)) |
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{ |
53 | 0 | if (iface.isAssignableFrom(listener.getClass())) |
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{ |
55 | 0 | Set<Class<? extends ServerNotification>> events = interfaceToEvents.get(iface); |
56 | 0 | for (Class<? extends ServerNotification> event : events) |
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{ |
58 | 0 | if (notASubclassOfAnyClassInSet(disabledEvents, event)) |
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{ |
60 | 0 | knownEventsExact.put(event, Boolean.TRUE); |
61 | 0 | knownEventsSuper.put(event, Boolean.TRUE); |
62 | 0 | if (!eventToSenders.containsKey(event)) |
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{ |
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65 | 0 | eventToSenders.put(event, new ArrayList<Sender>()); |
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} |
67 | 0 | eventToSenders.get(event).add(new Sender(pair)); |
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} |
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} |
70 | 0 | } |
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} |
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} |
73 | 0 | } |
74 | 0 | } |
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protected static boolean notASubclassOfAnyClassInSet(Set set, Class clazz) |
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{ |
78 | 0 | for (Iterator iterator = set.iterator(); iterator.hasNext();) |
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{ |
80 | 0 | Class disabled = (Class) iterator.next(); |
81 | 0 | if (disabled.isAssignableFrom(clazz)) |
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{ |
83 | 0 | return false; |
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} |
85 | 0 | } |
86 | 0 | return true; |
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} |
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protected static boolean notASuperclassOfAnyClassInSet(Set set, Class clazz) |
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{ |
91 | 0 | for (Iterator iterator = set.iterator(); iterator.hasNext();) |
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{ |
93 | 0 | Class disabled = (Class) iterator.next(); |
94 | 0 | if (clazz.isAssignableFrom(disabled)) |
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{ |
96 | 0 | return false; |
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} |
98 | 0 | } |
99 | 0 | return true; |
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} |
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void dispatch(ServerNotification notification) |
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{ |
104 | 0 | if (null != notification) |
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{ |
106 | 0 | Class notfnClass = notification.getClass(); |
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108 | 0 | if ((!knownEventsExact.containsKey(notfnClass)) |
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|| ((Boolean) knownEventsExact.get(notfnClass)).booleanValue()) |
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{ |
111 | 0 | boolean found = false; |
112 | 0 | for (Class<? extends ServerNotification> event : eventToSenders.keySet()) |
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{ |
114 | 0 | if (event.isAssignableFrom(notfnClass)) |
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{ |
116 | 0 | found = true; |
117 | 0 | for (Iterator senders = ((Collection) eventToSenders.get(event)).iterator(); senders.hasNext();) |
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{ |
119 | 0 | ((Sender) senders.next()).dispatch(notification); |
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} |
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} |
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} |
123 | 0 | knownEventsExact.put(notfnClass, Boolean.valueOf(found)); |
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} |
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} |
126 | 0 | } |
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boolean isNotificationEnabled(Class notfnClass) |
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{ |
139 | 0 | if (!knownEventsSuper.containsKey(notfnClass)) |
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{ |
141 | 0 | boolean found = false; |
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143 | 0 | for (Iterator events = knownEventsSuper.keySet().iterator(); events.hasNext() && !found;) |
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{ |
145 | 0 | Class event = (Class) events.next(); |
146 | 0 | found = ((Boolean) knownEventsSuper.get(event)).booleanValue() && notfnClass.isAssignableFrom(event); |
147 | 0 | } |
148 | 0 | knownEventsSuper.put(notfnClass, Boolean.valueOf(found)); |
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} |
150 | 0 | if (!knownEventsExact.containsKey(notfnClass)) |
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{ |
152 | 0 | boolean found = false; |
153 | 0 | for (Iterator events = eventToSenders.keySet().iterator(); events.hasNext() && !found;) |
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{ |
155 | 0 | Class event = (Class) events.next(); |
156 | 0 | found = event.isAssignableFrom(notfnClass); |
157 | 0 | } |
158 | 0 | knownEventsExact.put(notfnClass, Boolean.valueOf(found)); |
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} |
161 | 0 | return ((Boolean) knownEventsSuper.get(notfnClass)).booleanValue() |
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|| ((Boolean) knownEventsExact.get(notfnClass)).booleanValue(); |
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} |
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} |