diff options
Diffstat (limited to 'plugins/org.eclipse.wst.common.emfworkbench.integration/src/org/eclipse/wst/common/internal/emfworkbench/integration/ModifierHelperRegistry.java')
| -rw-r--r-- | plugins/org.eclipse.wst.common.emfworkbench.integration/src/org/eclipse/wst/common/internal/emfworkbench/integration/ModifierHelperRegistry.java | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/plugins/org.eclipse.wst.common.emfworkbench.integration/src/org/eclipse/wst/common/internal/emfworkbench/integration/ModifierHelperRegistry.java b/plugins/org.eclipse.wst.common.emfworkbench.integration/src/org/eclipse/wst/common/internal/emfworkbench/integration/ModifierHelperRegistry.java deleted file mode 100644 index b1da8ade0..000000000 --- a/plugins/org.eclipse.wst.common.emfworkbench.integration/src/org/eclipse/wst/common/internal/emfworkbench/integration/ModifierHelperRegistry.java +++ /dev/null @@ -1,273 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2003, 2005 IBM Corporation and others. - * 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: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -/* - * Created on Apr 27, 2004 - * - * To change the template for this generated file go to Window - Preferences - - * Java - Code Generation - Code and Comments - */ -package org.eclipse.wst.common.internal.emfworkbench.integration; - -import java.util.ArrayList; -import java.util.Hashtable; -import java.util.Iterator; -import java.util.List; - -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.emf.common.util.EList; -import org.eclipse.emf.ecore.EClass; -import org.eclipse.emf.ecore.EClassifier; -import org.eclipse.emf.ecore.EPackage; -import org.eclipse.emf.ecore.EStructuralFeature; -import org.eclipse.jem.util.logger.proxy.Logger; - -/** - * @author jsholl - * - */ -public class ModifierHelperRegistry { - private static final String PLUGIN_ID = "org.eclipse.wst.common.internal.emfworkbench.integration"; //$NON-NLS-1$ - private static final String EXTENSION_POINT = "ModifierHelperFactory"; //$NON-NLS-1$ - private static final String FACTORY_CLASS = "class"; //$NON-NLS-1$ - private static final String PACKAGE = "package"; //$NON-NLS-1$ - private static final String PACKAGE_URI = "uri"; //$NON-NLS-1$ - private static final String NAME = "name"; //$NON-NLS-1$ - private static final String TYPE = "type"; //$NON-NLS-1$ - private static final String FEATURE = "feature"; //$NON-NLS-1$ - private static final String FEATURE_ACTION = "action"; //$NON-NLS-1$ - private static final String FEATURE_ACTION_SET = "set"; //$NON-NLS-1$ - private static final String FEATURE_ACTION_UNSET = "unset"; //$NON-NLS-1$ - private static final String FEATURE_ACTION_BOTH = "both"; //default //$NON-NLS-1$ - private static ModifierHelperRegistry INSTANCE = null; - // Hashtable mapping features to a list of FactoryHolders - private Hashtable featureHash = new Hashtable(); - private Hashtable factoryHash = new Hashtable(); - - private class FactoryHolder { - private int actionType; - private IConfigurationElement element; - - public FactoryHolder(IConfigurationElement element, int actionType) { - this.element = element; - this.actionType = actionType; - } - - public ModifierHelperFactory getFactory(int actionTypeArg) { - if (this.actionType == actionTypeArg || this.actionType == ModifierHelper.ACTION_BOTH) { - String hashKey = getFactoryHash(element); - ModifierHelperFactory factory = (ModifierHelperFactory) factoryHash.get(hashKey); - if (null == factory) { - try { - factory = (ModifierHelperFactory) element.createExecutableExtension(FACTORY_CLASS); - factoryHash.put(hashKey, factory); - } catch (CoreException e) { - Logger.getLogger().logError(e); - } - } - return factory; - } - return null; - } - - public boolean equals(Object obj) { - if (super.equals(obj)) { - return true; - } - FactoryHolder holder = (FactoryHolder) obj; - return getFactoryHash(element).equals(getFactoryHash(holder.element)); - } - } - - private ModifierHelperRegistry() { - readExtensions(); - } - - private void readExtensions() { - IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(PLUGIN_ID, EXTENSION_POINT); - if (point == null) - return; - IConfigurationElement[] elements = point.getConfigurationElements(); - for (int i = 0; i < elements.length; i++) { - readFactory(elements[i]); - } - } - - private void readFactory(IConfigurationElement element) { - String factoryClassName = element.getAttribute(FACTORY_CLASS); - if (null == factoryClassName) { - logError(element, "No " + FACTORY_CLASS + " defined."); //$NON-NLS-1$ //$NON-NLS-2$ - } - IConfigurationElement[] packages = element.getChildren(PACKAGE); - if (packages.length == 0) { - logError(element, "No " + PACKAGE + " defined."); //$NON-NLS-1$ //$NON-NLS-2$ - } - for (int j = 0; j < packages.length; j++) { - readPackage(element, packages[j]); - } - } - - private void readPackage(IConfigurationElement factoryElement, IConfigurationElement element) { - String packageURI = element.getAttribute(PACKAGE_URI); - if (null == packageURI) { - logError(element, "No " + PACKAGE_URI + " defined."); //$NON-NLS-1$ //$NON-NLS-2$ - return; - } - EPackage ePackage = EPackage.Registry.INSTANCE.getEPackage(packageURI); - if (null == ePackage) { - logError(element, PACKAGE + " " + packageURI + " can not be found."); //$NON-NLS-1$ //$NON-NLS-2$ - return; - } - IConfigurationElement[] types = element.getChildren(TYPE); - if (types.length == 0) { - logError(element, "No " + TYPE + " defined."); //$NON-NLS-1$ //$NON-NLS-2$ - } - for (int i = 0; i < types.length; i++) { - readType(factoryElement, ePackage, types[i]); - } - } - - private void readType(IConfigurationElement factoryElement, EPackage ePackage, IConfigurationElement element) { - String typeName = element.getAttribute(NAME); - if (null == typeName) { - logError(element, "No " + NAME + " defined."); //$NON-NLS-1$ //$NON-NLS-2$ - return; - } - EClassifier eClassifier = ePackage.getEClassifier(typeName); - if (null == eClassifier) { - logError(element, TYPE + " " + typeName + " can not be found in " + PACKAGE + " " + ePackage.getName()); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ - return; - } - EClass eClass = (EClass) eClassifier; - IConfigurationElement[] features = element.getChildren(FEATURE); - if (features.length == 0) { - logError(element, "No " + FEATURE + " defined."); //$NON-NLS-1$ //$NON-NLS-2$ - return; - } - for (int i = 0; i < features.length; i++) { - readFeature(factoryElement, eClass, features[i]); - } - } - - private void readFeature(IConfigurationElement factoryElement, EClass eClass, IConfigurationElement element) { - String featureName = element.getAttribute(NAME); - if (null == featureName) { - logError(element, "No " + NAME + " defined."); //$NON-NLS-1$ //$NON-NLS-2$ - return; - } - String action = element.getAttribute(FEATURE_ACTION); - if (null == action) { - action = FEATURE_ACTION_BOTH; - } - int actionType = -1; - if (action.equalsIgnoreCase(FEATURE_ACTION_BOTH)) { - actionType = ModifierHelper.ACTION_BOTH; - } else if (action.equalsIgnoreCase(FEATURE_ACTION_SET)) { - actionType = ModifierHelper.ACTION_SET; - } else if (action.equalsIgnoreCase(FEATURE_ACTION_UNSET)) { - actionType = ModifierHelper.ACTION_UNSET; - } - if (actionType == -1) { - logError(element, "Invalid " + FEATURE_ACTION + "=" + action + " defined. Valid values are: " + FEATURE_ACTION_BOTH + ", " + FEATURE_ACTION_SET + ", or " + FEATURE_ACTION_UNSET); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ - return; - } - EStructuralFeature feature = null; - EList allFeatures = eClass.getEAllStructuralFeatures(); - EStructuralFeature tempFeature = null; - Iterator iterator = allFeatures.iterator(); - while (null == feature && iterator.hasNext()) { - tempFeature = (EStructuralFeature) iterator.next(); - if (tempFeature.getName().equals(featureName)) { - feature = tempFeature; - } - } - if (feature == null) { - logError(element, FEATURE + " " + featureName + " can not be found in " + TYPE + " " + eClass.getName()); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ - return; - } - List factoryHolderList = (List) featureHash.get(feature); - if (null == factoryHolderList) { - factoryHolderList = new ArrayList(); - featureHash.put(feature, factoryHolderList); - } - FactoryHolder factoryHolder = new FactoryHolder(factoryElement, actionType); - if (factoryHolderList.contains(factoryHolder)) { - logError(element, "Duplicate" + FEATURE + ":" + featureName + " defined for " + FACTORY_CLASS + ":" + factoryElement.getAttribute(FACTORY_CLASS)); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ - return; - } - factoryHolderList.add(factoryHolder); - } - - private String getFactoryHash(IConfigurationElement factoryElement) { - return factoryElement.getDeclaringExtension().getNamespace() + factoryElement.getAttribute(FACTORY_CLASS); - } - - public static void logError(IConfigurationElement element, String text) { - IExtension extension = element.getDeclaringExtension(); - StringBuffer buf = new StringBuffer(); - buf.append("Plugin " + extension.getNamespace() + ", extension " + extension.getExtensionPointUniqueIdentifier()); //$NON-NLS-1$ //$NON-NLS-2$ - buf.append("\n" + text); //$NON-NLS-1$ - Logger.getLogger().logError(buf.toString()); - } - - public static ModifierHelperRegistry getInstance() { - if (null == INSTANCE) { - INSTANCE = new ModifierHelperRegistry(); - } - return INSTANCE; - } - - /** - * returns a list of ModifierHelpers - * - * @param baseHelper - * @param actionFlag - * @return - */ - public List getHelpers(ModifierHelper baseHelper) { - int actionFlag = baseHelper.shouldUnsetValue() ? ModifierHelper.ACTION_UNSET : ModifierHelper.ACTION_SET; - EStructuralFeature feature = baseHelper.getFeature(); - List factoryList = getFactories(feature, actionFlag); - if (null == factoryList) { - return null; - } - ArrayList helpers = new ArrayList(); - Iterator it = factoryList.iterator(); - ModifierHelperFactory factory = null; - while (it.hasNext()) { - factory = (ModifierHelperFactory) it.next(); - Object helper = factory.getHelper(baseHelper, actionFlag); - if (null != helper) { - helpers.add(helper); - } - } - return helpers; - } - - private List getFactories(EStructuralFeature feature, int actionFlag) { - List factoryHolderList = (List) featureHash.get(feature); - if (null == factoryHolderList) { - return null; - } - List factoryList = new ArrayList(); - ModifierHelperFactory factory = null; - for (int i = 0; i < factoryHolderList.size(); i++) { - factory = ((FactoryHolder) factoryHolderList.get(i)).getFactory(actionFlag); - if (null != factory) { - factoryList.add(factory); - } - } - return factoryList; - } -} |