| /******************************************************************************* |
| * Copyright (c) 2001, 2008 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 May 3, 2004 |
| * |
| * To change the template for this generated file go to |
| * Window - Preferences - Java - Code Generation - Code and Comments |
| */ |
| package org.eclipse.wst.validation.internal; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExtension; |
| import org.eclipse.core.runtime.IExtensionPoint; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.wst.validation.internal.operations.ReferencialFileValidator; |
| import org.eclipse.wst.validation.internal.plugin.ValidationPlugin; |
| |
| /** |
| * @author vijayb |
| */ |
| public class ReferencialFileValidatorRegistryReader { |
| static ReferencialFileValidatorRegistryReader instance; |
| |
| private static final String Id = "id"; //$NON-NLS-1$ |
| private static final String ExtensionPoint = "referencialFileValidator"; //$NON-NLS-1$ |
| |
| protected List<ReferencialFileValidatorExtension> referencialFileValidationExtensions; |
| |
| public ReferencialFileValidatorRegistryReader() { |
| } |
| |
| /** |
| * Read the extension point and parse it. |
| */ |
| public void readRegistry() { |
| IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(Id, ExtensionPoint); |
| if (point == null)return; |
| IConfigurationElement[] elements = point.getConfigurationElements(); |
| for (int i = 0; i < elements.length; i++) { |
| internalReadElement(elements[i]); |
| } |
| } |
| |
| private void internalReadElement(IConfigurationElement element) { |
| boolean recognized = this.readElement(element); |
| if (!recognized) { |
| logError(element, "Error processing extension: " + element); //$NON-NLS-1$ |
| } |
| } |
| |
| /* |
| * Logs the error in the desktop log using the provided text and the information in the configuration element. |
| */ |
| protected void logError(IConfigurationElement element, String text) { |
| IExtension extension = element.getDeclaringExtension(); |
| StringBuffer buf = new StringBuffer(); |
| buf.append("Plugin " + extension.getContributor().getName() + ", extension " + extension.getExtensionPointUniqueIdentifier()); //$NON-NLS-1$ //$NON-NLS-2$ |
| buf.append("\n" + text); //$NON-NLS-1$ |
| ValidationPlugin.getPlugin().logMessage(IStatus.ERROR, buf.toString()); |
| } |
| |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.wst.common.frameworks.internal.RegistryReader#readElement(org.eclipse.core.runtime.IConfigurationElement) |
| */ |
| public boolean readElement(IConfigurationElement element) { |
| if (ReferencialFileValidatorExtension.REF_FILE_VALIDATOR_EXTENSION.equals(element.getName())) { |
| addExtension(element); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Sets the extension point. |
| * |
| * @param newExtension |
| * The extensions to set |
| */ |
| protected void addExtension(IConfigurationElement newExtension) { |
| |
| //add to the list of post validator extensions only if the extension is not added yet |
| boolean containsExt = true; |
| for(ReferencialFileValidatorExtension ext : getReferencialFileValidationExtensions()) { |
| if(!ext.getElement().getAttribute(Id).equals(newExtension.getAttribute(Id)))containsExt = false; |
| } |
| if(!containsExt ||getReferencialFileValidationExtensions().isEmpty()) |
| getReferencialFileValidationExtensions().add(new ReferencialFileValidatorExtension(newExtension)); |
| |
| getReferencialFileValidationExtensions().add(new ReferencialFileValidatorExtension(newExtension)); |
| } |
| |
| /** |
| * Sets the extension point. |
| * |
| * @param newExtension |
| * The extensions to set |
| */ |
| protected void addExtensionPoint(ReferencialFileValidatorExtension newExtension) { |
| if (referencialFileValidationExtensions == null) |
| referencialFileValidationExtensions = new ArrayList<ReferencialFileValidatorExtension>(); |
| referencialFileValidationExtensions.add(newExtension); |
| } |
| |
| /** |
| * @return the appropriate handler for the project based on priorities of those which are |
| * available and enabled |
| */ |
| public ReferencialFileValidator getReferencialFileValidator() { |
| for (ReferencialFileValidatorExtension refFileValExt: getReferencialFileValidationExtensions()) { |
| return refFileValExt.getInstance(); |
| } |
| return null; |
| } |
| |
| /** |
| * Gets the singleton instance. |
| */ |
| public static ReferencialFileValidatorRegistryReader getInstance() { |
| if (instance == null) { |
| instance = new ReferencialFileValidatorRegistryReader(); |
| instance.readRegistry(); |
| } |
| return instance; |
| } |
| |
| /** |
| * @return Returns the handlerExtensions. |
| */ |
| protected List<ReferencialFileValidatorExtension> getReferencialFileValidationExtensions() { |
| if (referencialFileValidationExtensions == null) |
| referencialFileValidationExtensions = new ArrayList<ReferencialFileValidatorExtension>(); |
| return referencialFileValidationExtensions; |
| } |
| |
| } |