X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui.common%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fcommon%2Fextension%2Finternal%2FEvaluatorFactoryExtensionManager.java;h=fbb06b3f36b7a7c748cd7f1750cc340a15a1ee34;hp=46e82d2481836900f5bef69f70e8c86689fddeba;hb=0ae2b770234dfc3cbb18bd38f324125cf0faca07;hpb=24e2b34260f219f0d1644ca7a138894980e25b14 diff --git a/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/extension/internal/EvaluatorFactoryExtensionManager.java b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/extension/internal/EvaluatorFactoryExtensionManager.java index 46e82d248..fbb06b3f3 100644 --- a/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/extension/internal/EvaluatorFactoryExtensionManager.java +++ b/bundles/org.simantics.browsing.ui.common/src/org/simantics/browsing/ui/common/extension/internal/EvaluatorFactoryExtensionManager.java @@ -1,134 +1,134 @@ -/******************************************************************************* - * Copyright (c) 2007, 2010 Association for Decentralized Information Management - * in Industry THTH ry. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * VTT Technical Research Centre of Finland - initial API and implementation - *******************************************************************************/ -package org.simantics.browsing.ui.common.extension.internal; - -import java.util.Arrays; -import java.util.HashSet; -import java.util.Set; - -import org.eclipse.core.runtime.CoreException; -import org.eclipse.core.runtime.IConfigurationElement; -import org.eclipse.core.runtime.IExtension; -import org.eclipse.core.runtime.IExtensionPoint; -import org.eclipse.core.runtime.Platform; -import org.eclipse.core.runtime.dynamichelpers.ExtensionTracker; -import org.eclipse.core.runtime.dynamichelpers.IExtensionChangeHandler; -import org.eclipse.core.runtime.dynamichelpers.IExtensionTracker; -import org.eclipse.core.runtime.dynamichelpers.IFilter; -import org.simantics.browsing.ui.common.Activator; -import org.simantics.browsing.ui.common.ErrorLogger; -import org.simantics.browsing.ui.common.extension.EvaluatorFactory; - -/** - * @author Tuukka Lehtonen - */ -public class EvaluatorFactoryExtensionManager implements IExtensionChangeHandler { - - private final static String NAMESPACE = Activator.PLUGIN_ID; - - private final static String EP_NAME = "evaluator"; - - private ExtensionTracker tracker; - - private IEvaluatorFactoryExtension[] extensions = new IEvaluatorFactoryExtension[0]; - - private static EvaluatorFactoryExtensionManager INSTANCE; - - - public static synchronized EvaluatorFactoryExtensionManager getInstance() { - if (INSTANCE == null) - INSTANCE = new EvaluatorFactoryExtensionManager(); - return INSTANCE; - } - - public static synchronized void dispose() { - if (INSTANCE != null) { - INSTANCE.close(); - INSTANCE = null; - } - } - - - private EvaluatorFactoryExtensionManager() { - tracker = new ExtensionTracker(); - - // Cache defined actions - IExtensionPoint expt = Platform.getExtensionRegistry().getExtensionPoint(NAMESPACE, EP_NAME); - loadExtensions(expt.getConfigurationElements()); - - // Start tracking for new and removed extensions - IFilter filter = ExtensionTracker.createExtensionPointFilter(expt); - tracker.registerHandler(this, filter); - } - - private void close() { - tracker.close(); - tracker = null; - extensions = new IEvaluatorFactoryExtension[0]; - } - - public IEvaluatorFactoryExtension[] getExtensions() { - return extensions; - } - - private void loadExtensions(IConfigurationElement[] elements) { - - Set newExtensions = new HashSet(Arrays.asList(extensions)); - - for (IConfigurationElement el : elements) { - try { - - EvaluatorFactory factory = (EvaluatorFactory)el.createExecutableExtension("class"); - IEvaluatorFactoryExtension ext = new EvaluatorFactoryExtension(factory); - - // Start tracking the new extension object, its removal will be notified of - // with removeExtension(extension, Object[]). - tracker.registerObject(el.getDeclaringExtension(), ext, IExtensionTracker.REF_STRONG); - - newExtensions.add(ext); - } catch (CoreException e) { - ErrorLogger.defaultLogError("Failed to initialize " + EP_NAME + " extension \"" + el.getName() - + "\" with name \"" + el.getAttribute("name") + "\": " - + e.getMessage(), e); - } - } - - // Atomic assignment - this.extensions = newExtensions.toArray(new IEvaluatorFactoryExtension[newExtensions.size()]); - } - - @Override - public void addExtension(IExtensionTracker tracker, IExtension extension) { - loadExtensions(extension.getConfigurationElements()); - } - - @Override - public void removeExtension(IExtension extension, Object[] objects) { - Set newExtensions = new HashSet(Arrays.asList(extensions)); - - for (Object o : objects) { - tracker.unregisterObject(extension, o); - newExtensions.remove(o); - } - - // Atomic assignment - this.extensions = newExtensions.toArray(new IEvaluatorFactoryExtension[newExtensions.size()]); - } - - public static EvaluatorFactory getFactory(String id) { - for(IEvaluatorFactoryExtension ext : getInstance().extensions) { - if(ext.factory().getClass().getCanonicalName().equals(id)) return ext.factory(); - } - return null; - } - -} +/******************************************************************************* + * Copyright (c) 2007, 2010 Association for Decentralized Information Management + * in Industry THTH ry. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * VTT Technical Research Centre of Finland - initial API and implementation + *******************************************************************************/ +package org.simantics.browsing.ui.common.extension.internal; + +import java.util.Arrays; +import java.util.HashSet; +import java.util.Set; + +import org.eclipse.core.runtime.CoreException; +import org.eclipse.core.runtime.IConfigurationElement; +import org.eclipse.core.runtime.IExtension; +import org.eclipse.core.runtime.IExtensionPoint; +import org.eclipse.core.runtime.Platform; +import org.eclipse.core.runtime.dynamichelpers.ExtensionTracker; +import org.eclipse.core.runtime.dynamichelpers.IExtensionChangeHandler; +import org.eclipse.core.runtime.dynamichelpers.IExtensionTracker; +import org.eclipse.core.runtime.dynamichelpers.IFilter; +import org.simantics.browsing.ui.common.Activator; +import org.simantics.browsing.ui.common.ErrorLogger; +import org.simantics.browsing.ui.common.extension.EvaluatorFactory; + +/** + * @author Tuukka Lehtonen + */ +public class EvaluatorFactoryExtensionManager implements IExtensionChangeHandler { + + private final static String NAMESPACE = Activator.PLUGIN_ID; + + private final static String EP_NAME = "evaluator"; + + private ExtensionTracker tracker; + + private IEvaluatorFactoryExtension[] extensions = new IEvaluatorFactoryExtension[0]; + + private static EvaluatorFactoryExtensionManager INSTANCE; + + + public static synchronized EvaluatorFactoryExtensionManager getInstance() { + if (INSTANCE == null) + INSTANCE = new EvaluatorFactoryExtensionManager(); + return INSTANCE; + } + + public static synchronized void dispose() { + if (INSTANCE != null) { + INSTANCE.close(); + INSTANCE = null; + } + } + + + private EvaluatorFactoryExtensionManager() { + tracker = new ExtensionTracker(); + + // Cache defined actions + IExtensionPoint expt = Platform.getExtensionRegistry().getExtensionPoint(NAMESPACE, EP_NAME); + loadExtensions(expt.getConfigurationElements()); + + // Start tracking for new and removed extensions + IFilter filter = ExtensionTracker.createExtensionPointFilter(expt); + tracker.registerHandler(this, filter); + } + + private void close() { + tracker.close(); + tracker = null; + extensions = new IEvaluatorFactoryExtension[0]; + } + + public IEvaluatorFactoryExtension[] getExtensions() { + return extensions; + } + + private void loadExtensions(IConfigurationElement[] elements) { + + Set newExtensions = new HashSet(Arrays.asList(extensions)); + + for (IConfigurationElement el : elements) { + try { + + EvaluatorFactory factory = (EvaluatorFactory)el.createExecutableExtension("class"); + IEvaluatorFactoryExtension ext = new EvaluatorFactoryExtension(factory); + + // Start tracking the new extension object, its removal will be notified of + // with removeExtension(extension, Object[]). + tracker.registerObject(el.getDeclaringExtension(), ext, IExtensionTracker.REF_STRONG); + + newExtensions.add(ext); + } catch (CoreException e) { + ErrorLogger.defaultLogError("Failed to initialize " + EP_NAME + " extension \"" + el.getName() + + "\" with name \"" + el.getAttribute("name") + "\": " + + e.getMessage(), e); + } + } + + // Atomic assignment + this.extensions = newExtensions.toArray(new IEvaluatorFactoryExtension[newExtensions.size()]); + } + + @Override + public void addExtension(IExtensionTracker tracker, IExtension extension) { + loadExtensions(extension.getConfigurationElements()); + } + + @Override + public void removeExtension(IExtension extension, Object[] objects) { + Set newExtensions = new HashSet(Arrays.asList(extensions)); + + for (Object o : objects) { + tracker.unregisterObject(extension, o); + newExtensions.remove(o); + } + + // Atomic assignment + this.extensions = newExtensions.toArray(new IEvaluatorFactoryExtension[newExtensions.size()]); + } + + public static EvaluatorFactory getFactory(String id) { + for(IEvaluatorFactoryExtension ext : getInstance().extensions) { + if(ext.factory().getClass().getCanonicalName().equals(id)) return ext.factory(); + } + return null; + } + +}