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package org.mule.lifecycle; |
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import org.mule.api.MuleContext; |
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import org.mule.api.MuleException; |
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import org.mule.api.lifecycle.Disposable; |
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import org.mule.api.lifecycle.Initialisable; |
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import org.mule.api.lifecycle.LifecycleCallback; |
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import org.mule.api.lifecycle.LifecycleException; |
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import org.mule.api.lifecycle.LifecyclePhase; |
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import org.mule.api.lifecycle.RegistryLifecycleHelpers; |
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import org.mule.api.lifecycle.Startable; |
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import org.mule.api.lifecycle.Stoppable; |
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import org.mule.api.registry.Registry; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.lifecycle.phases.ContainerManagedLifecyclePhase; |
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import org.mule.lifecycle.phases.MuleContextDisposePhase; |
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import org.mule.lifecycle.phases.MuleContextInitialisePhase; |
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import org.mule.lifecycle.phases.MuleContextStartPhase; |
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import org.mule.lifecycle.phases.MuleContextStopPhase; |
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import org.mule.lifecycle.phases.NotInLifecyclePhase; |
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import org.mule.registry.AbstractRegistryBroker; |
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|
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import java.util.Collection; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.Iterator; |
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import java.util.LinkedList; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Set; |
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import java.util.TreeMap; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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public class RegistryLifecycleManager extends AbstractLifecycleManager<Registry> implements RegistryLifecycleHelpers |
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{ |
45 | 0 | protected Map<String, LifecyclePhase> phases = new HashMap<String, LifecyclePhase>(); |
46 | 0 | protected TreeMap<String, LifecycleCallback> callbacks = new TreeMap<String, LifecycleCallback>(); |
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protected MuleContext muleContext; |
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|
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public RegistryLifecycleManager(String id, Registry object, MuleContext muleContext) |
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{ |
51 | 0 | super(id, object); |
52 | 0 | this.muleContext = muleContext; |
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|
54 | 0 | registerPhases(); |
55 | 0 | } |
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|
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protected void registerPhases() |
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{ |
59 | 0 | RegistryLifecycleCallback callback = new RegistryLifecycleCallback(); |
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|
61 | 0 | registerPhase(NotInLifecyclePhase.PHASE_NAME, NOT_IN_LIFECYCLE_PHASE, |
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new EmptyLifecycleCallback<AbstractRegistryBroker>()); |
63 | 0 | registerPhase(Initialisable.PHASE_NAME, new MuleContextInitialisePhase(), callback); |
64 | 0 | registerPhase(Startable.PHASE_NAME, new MuleContextStartPhase(), |
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new EmptyLifecycleCallback<AbstractRegistryBroker>()); |
66 | 0 | registerPhase(Stoppable.PHASE_NAME, new MuleContextStopPhase(), |
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new EmptyLifecycleCallback<AbstractRegistryBroker>()); |
68 | 0 | registerPhase(Disposable.PHASE_NAME, new MuleContextDisposePhase(), callback); |
69 | 0 | } |
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public RegistryLifecycleManager(String id, Registry object, Map<String, LifecyclePhase> phases ) |
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{ |
73 | 0 | super(id, object); |
74 | 0 | RegistryLifecycleCallback callback = new RegistryLifecycleCallback(); |
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|
76 | 0 | registerPhase(NotInLifecyclePhase.PHASE_NAME, NOT_IN_LIFECYCLE_PHASE, new LifecycleCallback(){ |
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public void onTransition(String phaseName, Object object) throws MuleException |
78 | 0 | { }}); |
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|
80 | 0 | for (Map.Entry<String, LifecyclePhase> entry : phases.entrySet()) |
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{ |
82 | 0 | registerPhase(entry.getKey(), entry.getValue(), callback); |
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} |
84 | 0 | } |
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|
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@Override |
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protected void registerTransitions() |
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{ |
89 | 0 | addDirectTransition(NotInLifecyclePhase.PHASE_NAME, Initialisable.PHASE_NAME); |
90 | 0 | addDirectTransition(Initialisable.PHASE_NAME, Startable.PHASE_NAME); |
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|
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|
93 | 0 | addDirectTransition(Startable.PHASE_NAME, Stoppable.PHASE_NAME); |
94 | 0 | addDirectTransition(Stoppable.PHASE_NAME, Startable.PHASE_NAME); |
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|
96 | 0 | addDirectTransition(NotInLifecyclePhase.PHASE_NAME, Disposable.PHASE_NAME); |
97 | 0 | addDirectTransition(Initialisable.PHASE_NAME, Disposable.PHASE_NAME); |
98 | 0 | addDirectTransition(Stoppable.PHASE_NAME, Disposable.PHASE_NAME); |
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|
100 | 0 | } |
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|
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protected void registerPhase(String phaseName, LifecyclePhase phase) |
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{ |
104 | 0 | phaseNames.add(phaseName); |
105 | 0 | callbacks.put(phaseName, new RegistryLifecycleCallback()); |
106 | 0 | phases.put(phaseName, phase); |
107 | 0 | } |
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|
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protected void registerPhase(String phaseName, LifecyclePhase phase, LifecycleCallback callback) |
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{ |
111 | 0 | phaseNames.add(phaseName); |
112 | 0 | callbacks.put(phaseName, callback); |
113 | 0 | phases.put(phaseName, phase); |
114 | 0 | } |
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|
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public void fireLifecycle(String destinationPhase) throws LifecycleException |
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{ |
118 | 0 | checkPhase(destinationPhase); |
119 | 0 | if (isDirectTransition(destinationPhase)) |
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{ |
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|
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|
123 | 0 | invokePhase(destinationPhase, object, callbacks.get(destinationPhase)); |
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} |
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else |
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{ |
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|
128 | 0 | boolean start = false; |
129 | 0 | for (String phase : phaseNames) |
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{ |
131 | 0 | if (start) |
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{ |
133 | 0 | invokePhase(phase, object, callbacks.get(phase)); |
134 | 0 | if (phase.equals(destinationPhase)) |
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{ |
136 | 0 | break; |
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} |
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} |
139 | 0 | if (phase.equals(getCurrentPhase())) |
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{ |
141 | 0 | start = true; |
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} |
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} |
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} |
145 | 0 | } |
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|
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protected void invokePhase(String phase, Object object, LifecycleCallback callback) throws LifecycleException |
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{ |
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try |
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{ |
151 | 0 | setExecutingPhase(phase); |
152 | 0 | callback.onTransition(phase, object); |
153 | 0 | setCurrentPhase(phase); |
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} |
155 | 0 | catch (LifecycleException e) |
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{ |
157 | 0 | throw e; |
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} |
159 | 0 | catch (MuleException e) |
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{ |
161 | 0 | throw new LifecycleException(CoreMessages.failedToInvokeLifecycle(phase, object), e); |
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} |
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finally |
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{ |
165 | 0 | setExecutingPhase(null); |
166 | 0 | } |
167 | 0 | } |
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public void applyPhase(Object object, String fromPhase, String toPhase) throws LifecycleException |
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{ |
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|
178 | 0 | if(fromPhase == null || toPhase==null) |
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{ |
180 | 0 | throw new IllegalArgumentException("toPhase and fromPhase must be null"); |
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} |
182 | 0 | if(!phaseNames.contains(fromPhase)) |
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{ |
184 | 0 | throw new IllegalArgumentException("fromPhase '" + fromPhase + "' not a valid phase."); |
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} |
186 | 0 | if(!phaseNames.contains(toPhase)) |
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{ |
188 | 0 | throw new IllegalArgumentException("toPhase '" + fromPhase + "' not a valid phase."); |
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} |
190 | 0 | boolean start = false; |
191 | 0 | for (String phaseName : phaseNames) |
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{ |
193 | 0 | if(start) |
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{ |
195 | 0 | phases.get(phaseName).applyLifecycle(object); |
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} |
197 | 0 | if(toPhase.equals(phaseName)) |
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{ |
199 | 0 | break; |
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} |
201 | 0 | if(phaseName.equals(fromPhase)) |
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{ |
203 | 0 | start = true; |
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} |
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} |
207 | 0 | } |
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public void applyCompletedPhases(Object object) throws LifecycleException |
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{ |
211 | 0 | String lastPhase = NotInLifecyclePhase.PHASE_NAME; |
212 | 0 | for (String phase : completedPhases) |
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{ |
214 | 0 | if(isDirectTransition(lastPhase, phase)) |
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{ |
216 | 0 | LifecyclePhase lp = phases.get(phase); |
217 | 0 | lp.applyLifecycle(object); |
218 | 0 | lastPhase = phase; |
219 | 0 | } |
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} |
221 | 0 | } |
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|
223 | 0 | class RegistryLifecycleCallback implements LifecycleCallback<Object> |
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{ |
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228 | 0 | protected transient final Log logger = LogFactory.getLog(RegistryLifecycleCallback.class); |
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public void onTransition(String phaseName, Object object) throws MuleException |
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{ |
232 | 0 | LifecyclePhase phase = phases.get(phaseName); |
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|
234 | 0 | if (logger.isDebugEnabled()) |
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{ |
236 | 0 | logger.debug("Applying lifecycle phase: " + phase + " for registry: " + object.getClass().getSimpleName()); |
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} |
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|
239 | 0 | if (phase instanceof ContainerManagedLifecyclePhase) |
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{ |
241 | 0 | phase.applyLifecycle(object); |
242 | 0 | return; |
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} |
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|
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|
246 | 0 | Set<Object> duplicates = new HashSet<Object>(); |
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|
248 | 0 | for (LifecycleObject lo : phase.getOrderedLifecycleObjects()) |
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{ |
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|
251 | 0 | Collection<?> targetsObj = getLifecycleObject().lookupObjectsForLifecycle(lo.getType()); |
252 | 0 | List<Object> targets = new LinkedList<Object>(targetsObj); |
253 | 0 | if (targets.size() == 0) |
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{ |
255 | 0 | continue; |
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} |
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|
258 | 0 | lo.firePreNotification(muleContext); |
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|
260 | 0 | for (Iterator<Object> target = targets.iterator(); target.hasNext();) |
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{ |
262 | 0 | Object o = target.next(); |
263 | 0 | if (duplicates.contains(o)) |
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{ |
265 | 0 | target.remove(); |
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} |
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else |
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{ |
269 | 0 | if (logger.isDebugEnabled()) |
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{ |
271 | 0 | logger.debug("lifecycle phase: " + phase.getName() + " for object: " + o); |
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} |
273 | 0 | phase.applyLifecycle(o); |
274 | 0 | target.remove(); |
275 | 0 | duplicates.add(o); |
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} |
277 | 0 | } |
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|
279 | 0 | lo.firePostNotification(muleContext); |
280 | 0 | } |
281 | 0 | } |
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} |
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} |