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package org.mule.registry.impl; |
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import org.mule.registry.ClassLoaderFactory; |
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import org.mule.registry.ComponentType; |
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import org.mule.registry.Library; |
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import org.mule.registry.Registry; |
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import org.mule.registry.RegistryComponent; |
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import org.mule.registry.RegistryDescriptor; |
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import org.mule.registry.RegistryException; |
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import org.mule.registry.Unit; |
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import java.io.IOException; |
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import java.util.ArrayList; |
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import java.util.Collection; |
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import java.util.Iterator; |
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import java.util.List; |
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import javax.management.ObjectName; |
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public abstract class AbstractRegistryComponent extends AbstractEntry implements RegistryComponent |
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{ |
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protected ComponentType type; |
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protected String name; |
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protected transient ObjectName objectName; |
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protected List units; |
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protected List libraries; |
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protected String workspaceRoot; |
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protected List classPathElements; |
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protected String componentClassName; |
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protected boolean isClassLoaderParentFirst; |
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protected boolean isTransient; |
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protected Object component; |
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protected RegistryDescriptor descriptor; |
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protected AbstractRegistryComponent(String name, ComponentType type, Registry registry) |
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{ |
54 | 0 | super(registry); |
55 | 0 | this.type = type; |
56 | 0 | this.name = name; |
57 | 0 | this.units = new ArrayList(); |
58 | 0 | this.libraries = new ArrayList(); |
59 | 0 | } |
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public ComponentType getType() |
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{ |
63 | 0 | return type; |
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} |
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protected void readObject(java.io.ObjectInputStream in) throws IOException, ClassNotFoundException |
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{ |
68 | 0 | super.readObject(in); |
69 | 0 | in.defaultReadObject(); |
70 | 0 | } |
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public Library[] getLibraries() |
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{ |
79 | 0 | Collection c = new ArrayList(); |
80 | 0 | for (Iterator it = this.libraries.iterator(); it.hasNext();) |
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{ |
82 | 0 | String ref = (String)it.next(); |
83 | 0 | Library library = getRegistry().getLibrary(ref); |
84 | 0 | c.add(library); |
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} |
86 | 0 | return (Library[])c.toArray(new Library[c.size()]); |
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} |
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public Unit[] getUnits() |
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{ |
96 | 0 | Collection c = new ArrayList(); |
97 | 0 | for (Iterator it = this.units.iterator(); it.hasNext();) |
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{ |
99 | 0 | String ref = (String)it.next(); |
100 | 0 | String[] refs = ref.split("/"); |
101 | 0 | if (refs.length != 2) |
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{ |
103 | 0 | throw new IllegalStateException("Malformed unit ref"); |
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} |
105 | 0 | Unit unit = getRegistry().getAssembly(refs[0]).getUnit(refs[1]); |
106 | 0 | c.add(unit); |
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} |
108 | 0 | return (Unit[])c.toArray(new Unit[c.size()]); |
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} |
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public void addUnit(Unit unit) |
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{ |
113 | 0 | this.units.add(unit.getAssembly().getName() + "/" + unit.getName()); |
114 | 0 | } |
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public void removeUnit(Unit unit) |
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{ |
118 | 0 | this.units.remove(unit.getAssembly().getName() + "/" + unit.getName()); |
119 | 0 | } |
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public ObjectName getObjectName() |
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{ |
128 | 0 | return this.objectName; |
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} |
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protected void checkDescriptor() throws RegistryException |
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{ |
138 | 0 | super.checkDescriptor(); |
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140 | 0 | if (!getDescriptor().isComponent()) |
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{ |
142 | 0 | throw new RegistryException("component should be set"); |
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} |
144 | 0 | } |
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protected void createComponent() throws RegistryException |
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{ |
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try |
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{ |
150 | 0 | ClassLoader loader = ClassLoaderFactory.getInstance().createComponentClassLoader(this); |
151 | 0 | Class cl = Class.forName(this.componentClassName, true, loader); |
152 | 0 | this.component = cl.newInstance(); |
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} |
154 | 0 | catch (Exception e) |
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{ |
156 | 0 | throw new RegistryException(e); |
157 | 0 | } |
158 | 0 | } |
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public synchronized void install() throws RegistryException |
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{ |
167 | 0 | if (!getCurrentState().equals(UNKNOWN)) |
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{ |
169 | 0 | throw new RegistryException("Illegal status: " + getCurrentState()); |
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} |
171 | 0 | if (isTransient) |
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{ |
173 | 0 | return; |
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} |
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try |
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{ |
178 | 0 | doInstall(); |
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} |
180 | 0 | catch (Exception e) |
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{ |
182 | 0 | throw new RegistryException(e); |
183 | 0 | } |
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|
186 | 0 | createComponent(); |
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try |
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{ |
189 | 0 | objectName = initComponent(); |
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} |
191 | 0 | catch (Exception e) |
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{ |
193 | 0 | throw new RegistryException(e); |
194 | 0 | } |
195 | 0 | } |
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protected abstract void doInstall() throws Exception; |
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public final synchronized void restoreState() throws RegistryException |
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{ |
206 | 0 | if (!getCurrentState().equals(UNKNOWN) && !getCurrentState().equals(INITIALIZED)) |
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{ |
208 | 0 | throw new RegistryException("Illegal status: " + getCurrentState()); |
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} |
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try |
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{ |
212 | 0 | if (!isTransient) |
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{ |
214 | 0 | createComponent(); |
215 | 0 | initComponent(); |
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} |
217 | 0 | if (getStateAtShutdown().equals(RUNNING)) |
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{ |
219 | 0 | start(); |
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} |
221 | 0 | doRestoreState(); |
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} |
223 | 0 | catch (Exception e) |
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{ |
225 | 0 | throw new RegistryException(e); |
226 | 0 | } |
227 | 0 | } |
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protected abstract void doRestoreState() throws Exception; |
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public synchronized void saveAndShutdown() throws RegistryException |
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{ |
238 | 0 | setStateAtShutdown(getCurrentState()); |
239 | 0 | Unit[] units = getUnits(); |
240 | 0 | for (int i = 0; i < units.length; i++) |
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{ |
242 | 0 | units[i].setStateAtShutdown(units[i].getCurrentState()); |
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} |
244 | 0 | shutDown(); |
245 | 0 | } |
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public final synchronized void start() throws RegistryException |
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{ |
254 | 0 | if (getCurrentState().equals(UNKNOWN)) |
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{ |
256 | 0 | throw new RegistryException("Illegal status: " + getCurrentState()); |
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} |
258 | 0 | if (getCurrentState().equals(RUNNING)) |
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{ |
260 | 0 | return; |
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} |
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try |
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{ |
264 | 0 | doStart(); |
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} |
266 | 0 | catch (Exception e) |
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{ |
268 | 0 | throw new RegistryException(e); |
269 | 0 | } |
270 | 0 | setCurrentState(RUNNING); |
271 | 0 | } |
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protected abstract void doStart() throws Exception; |
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public final synchronized void stop() throws RegistryException |
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{ |
282 | 0 | if (getCurrentState().equals(UNKNOWN) || getCurrentState().equals(SHUTDOWN)) |
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{ |
284 | 0 | throw new RegistryException("Illegal status: " + getCurrentState()); |
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} |
286 | 0 | if (getCurrentState().equals(STOPPED)) |
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{ |
288 | 0 | return; |
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} |
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try |
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{ |
292 | 0 | doStop(); |
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} |
294 | 0 | catch (Exception e) |
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{ |
296 | 0 | throw new RegistryException(e); |
297 | 0 | } |
298 | 0 | setCurrentState(STOPPED); |
299 | 0 | } |
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protected abstract void doStop() throws Exception; |
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public final synchronized void shutDown() throws RegistryException |
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{ |
310 | 0 | if (getCurrentState().equals(UNKNOWN)) |
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{ |
312 | 0 | throw new RegistryException("Illegal status: " + getCurrentState()); |
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} |
314 | 0 | if (getCurrentState().equals(SHUTDOWN)) |
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{ |
316 | 0 | return; |
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} |
318 | 0 | stop(); |
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try |
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{ |
322 | 0 | doShutDown(); |
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} |
324 | 0 | catch (Exception e) |
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{ |
326 | 0 | throw new RegistryException(e); |
327 | 0 | } |
328 | 0 | setCurrentState(SHUTDOWN); |
329 | 0 | } |
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protected abstract void doShutDown() throws Exception; |
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public synchronized void uninstall() throws RegistryException |
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{ |
340 | 0 | if (!getCurrentState().equals(SHUTDOWN) && !getCurrentState().equals(UNKNOWN)) |
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{ |
342 | 0 | throw new RegistryException("Illegal status: " + getCurrentState()); |
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} |
344 | 0 | if (this.units.size() > 0) |
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{ |
346 | 0 | throw new RegistryException("Component has service units deployed"); |
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} |
348 | 0 | Library[] libraries = getLibraries(); |
349 | 0 | for (int i = 0; i < libraries.length; i++) |
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{ |
351 | 0 | libraries[i].removeComponent(this); |
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} |
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|
354 | 0 | registry.getManagementContext().deleteDir(getInstallRoot()); |
355 | 0 | registry.getManagementContext().deleteDir(getWorkspaceRoot()); |
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|
357 | 0 | getRegistry().removeComponent(this); |
358 | 0 | setCurrentState(UNKNOWN); |
359 | 0 | } |
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public String getWorkspaceRoot() |
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{ |
368 | 0 | return this.workspaceRoot; |
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} |
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public void setWorkspaceRoot(String workspaceRoot) |
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{ |
378 | 0 | this.workspaceRoot = workspaceRoot; |
379 | 0 | } |
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public List getClassPathElements() |
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{ |
388 | 0 | return this.classPathElements; |
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} |
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public void setClassPathElements(List classPathElements) |
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{ |
398 | 0 | this.classPathElements = classPathElements; |
399 | 0 | } |
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public boolean isClassLoaderParentFirst() |
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{ |
408 | 0 | return this.isClassLoaderParentFirst; |
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} |
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public void setComponent(Object component) |
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{ |
413 | 0 | this.component = component; |
414 | 0 | } |
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public boolean isTransient() |
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{ |
418 | 0 | return isTransient; |
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} |
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public void setTransient(boolean isTransient) |
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{ |
423 | 0 | this.isTransient = isTransient; |
424 | 0 | } |
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public Object getComponent() |
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{ |
433 | 0 | return component; |
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} |
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public RegistryDescriptor getDescriptor() throws RegistryException |
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{ |
443 | 0 | return descriptor; |
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} |
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public void setDescriptor(RegistryDescriptor descriptor) throws RegistryException |
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{ |
448 | 0 | this.descriptor = descriptor; |
449 | 0 | } |
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} |