Révision 1882
| tmp/org.txm.core/src/java/org/txm/core/engines/EnginesManager.java (revision 1882) | ||
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import org.txm.utils.logger.Log; |
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/** |
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* Extension point for an Engine (eg. Search engine, Stats engine, etc.). It is |
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* a service that may be used by TXM commands. The Toolbox will manage the |
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* engines life-cycle. |
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* Extension point for an engines manager (eg. SearchEnginesManager, StatsEnginesManager, ChartsEnginesManager, etc.). |
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* Engines manager are in charge of retrieving the engines from the engine installed contributions. |
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* They also batch start, stop, etc. the engines of the type they managed (eg. Search engine, Stats engine, etc.). |
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* It is a service that may be used by TXM commands. The Toolbox will manage the engines life-cycle. |
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* |
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* @author mdecorde |
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* @author sjacquot |
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*/ |
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public abstract class EnginesManager<T extends Engine> extends HashMap<String, T>{
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/** |
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* |
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*/ |
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private static final long serialVersionUID = 9186978207738860351L; |
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public static final String ENGINES_MANAGER_EXTENSION_POINT_ID = EnginesManager.class.getName(); |
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// /** |
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// * Managed engines map (name => engine). |
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// */ |
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// protected HashMap<String, T> engines = new HashMap<String, T>(); |
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/** |
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* Current engine. |
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*/ |
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protected T currentEngine = null; |
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/** |
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* Finds out the engines that matches this manager engines extension point. |
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* |
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IConfigurationElement[] contributions = RegistryFactory.getRegistry().getConfigurationElementsFor(engineExtensionPointId); |
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Log.finest(TXMCoreMessages.bind("Looking for {0} engines contributions with extension point id {1}...", this.getEnginesDescription(), engineExtensionPointId)); //$NON-NLS-1$
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Log.finest(contributions.length + " engine(s) found."); //$NON-NLS-1$
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Log.finest(TXMCoreMessages.bind("{0} engine(s) found.", contributions.length)); //$NON-NLS-1$
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for (int i = 0; i < contributions.length; i++) {
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try {
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@SuppressWarnings("unchecked")
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T e = (T) contributions[i].createExecutableExtension("class"); //$NON-NLS-1$
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T engine = (T) contributions[i].createExecutableExtension("class"); //$NON-NLS-1$
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Log.fine(TXMCoreMessages.bind("Initializing engine: {0}...", e));
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Log.fine(TXMCoreMessages.bind("Initializing engine: {0}...", engine));
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if (e.initialize()) {
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this.put(e.getName(), e);
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if (engine.initialize()) {
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this.put(engine.getName(), engine);
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} else {
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Log.severe("Failed to initialize " + e.getName() + " engine.");
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Log.severe("Failed to initialize " + engine.getName() + " engine.");
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} |
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} catch (Exception e) {
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Log.severe("Error: failed to instantiate " + contributions[i].getName() + ".");
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