<?xml version='1.0' encoding='UTF-8'?>

<!-- Schema file written by PDE -->

<schema targetNamespace="org.eclipse.mylyn.sandbox.ui" xmlns="http://www.w3.org/2001/XMLSchema">

<annotation>

      <appinfo>

         <meta.schema plugin="org.eclipse.mylyn.sandbox.ui" id="resourceHyperlinkExtensions" name="Resource Hyperlink Extension"/>

      </appinfo>

      <documentation>

         An extension to the Mylyn task editor that can detect resource hyperlinks.

      </documentation>

   </annotation>

   <element name="extension">

      <annotation>

         <appinfo>

            <meta.element />

         </appinfo>

      </annotation>

      <complexType>

         <sequence minOccurs="1" maxOccurs="unbounded">

            <element ref="resourceHyperlinkExtension"/>

         </sequence>

         <attribute name="point" type="string" use="required">

            <annotation>

               <documentation>

               </documentation>

            </annotation>

         </attribute>

         <attribute name="id" type="string">

            <annotation>

               <documentation>

               </documentation>

            </annotation>

         </attribute>

         <attribute name="name" type="string">

            <annotation>

               <documentation>

               </documentation>

               <appinfo>

                  <meta.attribute translatable="true"/>

               </appinfo>

            </annotation>

         </attribute>

      </complexType>

   </element>

   <element name="resourceHyperlinkExtension">

      <complexType>

         <attribute name="class" type="string" use="required">

            <annotation>

               <documentation>

                  Should implement IResourceHyperlinkExtension, but may subclass AbstractResourceHyperlinkExtension instead which provides various helper methods.

               </documentation>

               <appinfo>

                  <meta.attribute kind="java" basedOn=":org.eclipse.mylyn.internal.sandbox.ui.hyperlinks.IResourceHyperlinkExtension"/>

               </appinfo>

            </annotation>

         </attribute>

         <attribute name="fileType" type="string" use="required">

            <annotation>

               <documentation>

                  the file type of the resource, e.g. *.java, *.cpp, *.txt

               </documentation>

            </annotation>

         </attribute>

         <attribute name="generatedPrefix" type="string" use="required">

            <annotation>

               <documentation>

                  correspondent prefix for a certain file type, e.g. for ITask.java, the generatedPrefix is "java class" and the whole is "java class ITask".

               </documentation>

            </annotation>

         </attribute>

      </complexType>

   </element>

   <annotation>

      <appinfo>

         <meta.section type="since"/>

      </appinfo>

      <documentation>

         [Enter the first release in which this extension point appears.]

      </documentation>

   </annotation>

   <annotation>

      <appinfo>

         <meta.section type="examples"/>

      </appinfo>

      <documentation>

         [Enter extension point usage example here.]

      </documentation>

   </annotation>

   <annotation>

      <appinfo>

         <meta.section type="apiinfo"/>

      </appinfo>

      <documentation>

         [Enter API information here.]

      </documentation>

   </annotation>

   <annotation>

      <appinfo>

         <meta.section type="implementation"/>

      </appinfo>

      <documentation>

         [Enter information about supplied implementation of this extension point.]

      </documentation>

   </annotation>

</schema>

/*******************************************************************************

 * Copyright (c) 2004, 2007 Mylyn project committers 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

 *******************************************************************************/

package org.eclipse.mylyn.internal.sandbox.ui.hyperlinks;

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.IExtensionRegistry;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Platform;

import org.eclipse.core.runtime.Status;

import org.eclipse.mylyn.commons.core.StatusHandler;

import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin;

/**

 * @author Jingwen Ou

 */

public class ResourceHyperlinkExtensionReader {

	public static final String ATTR_FILE_TYPE = "fileType";

	public static final String ATTR_GENERATED_PREFIX = "generatedPrefix";

	public static final String EXTENSION_RESOURCE_HYPERLINK_EXTENSIONS = "org.eclipse.mylyn.sandbox.ui.resourceHyperlinkExtensions";

	private static final String RESOURCE_HYPERLINK_EXTENSION = "resourceHyperlinkExtension";

	public static void initExtensions() {

		IExtensionRegistry registry = Platform.getExtensionRegistry();

		IExtensionPoint editorExtensionPoint = registry.getExtensionPoint(EXTENSION_RESOURCE_HYPERLINK_EXTENSIONS);

		IExtension[] editorExtensions = editorExtensionPoint.getExtensions();

		for (IExtension extension : editorExtensions) {

			IConfigurationElement[] elements = extension.getConfigurationElements();

			for (IConfigurationElement element : elements) {

				if (element.getName().equals(RESOURCE_HYPERLINK_EXTENSION)) {

					readResourceHyperlinkExtension(element);

				}

			}

		}

	}

	private static void readResourceHyperlinkExtension(IConfigurationElement element) {

		try {

			String fileType = element.getAttribute(ATTR_FILE_TYPE);

			String generatedPrefix = element.getAttribute(ATTR_GENERATED_PREFIX);

			IResourceHyperlinkExtension extension = (IResourceHyperlinkExtension) element.createExecutableExtension("class");

			ResourceHyperlinkExtensions.addResourceHyperlinkExtension(fileType, generatedPrefix, extension);

		} catch (CoreException e) {

			StatusHandler.log(new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN,

					"Could not load resourceHyperlinkExtension", e));

		} catch (Exception e) {

			StatusHandler.log(new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN,

					"Could not load resourceHyperlinkExtension", e));

		}

	}

}

/*******************************************************************************

 * Copyright (c) 2004, 2007 Mylyn project committers 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

 *******************************************************************************/

package org.eclipse.mylyn.internal.sandbox.ui.hyperlinks;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.eclipse.core.runtime.Assert;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Status;

import org.eclipse.mylyn.commons.core.StatusHandler;

import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin;

/**

 * A manager that returns registered IResourceHyperlinkExtension

 * 

 * @author Jingwen Ou

 */

public class ResourceHyperlinkExtensions {

	public static class RegisteredResourceHyperlinkExtension {

		private final IResourceHyperlinkExtension extension;

		private final String fileType;

		private final String generatedPrefix;

		private RegisteredResourceHyperlinkExtension(IResourceHyperlinkExtension extension, String fileType,

				String generatedPrefix) {

			this.extension = extension;

			this.fileType = fileType;

			this.generatedPrefix = generatedPrefix;

		}

		public IResourceHyperlinkExtension getExtension() {

			return extension;

		}

		public String getFileType() {

			return fileType;

		}

		public String getGeneratedPrefix() {

			return generatedPrefix;

		}

	}

	private static Map<String, RegisteredResourceHyperlinkExtension> extensionByFileType = new HashMap<String, RegisteredResourceHyperlinkExtension>();

	private static boolean initialized = false;

	public static void addResourceHyperlinkExtension(String fileType, String generatedPrefix,

			IResourceHyperlinkExtension extension) {

		Assert.isNotNull(fileType);

		RegisteredResourceHyperlinkExtension previous = extensionByFileType.put(fileType,

				new RegisteredResourceHyperlinkExtension(extension, fileType, generatedPrefix));

		if (previous != null) {

			StatusHandler.log(new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN,

					"Duplicate resourceHyperlinkExtension fileType=" + fileType, null));

		}

	}

	public static IResourceHyperlinkExtension getResourceHyperlinkExtension(String fileType) {

		init();

		RegisteredResourceHyperlinkExtension resourceHyperlinkExtension = extensionByFileType.get(fileType);

		return resourceHyperlinkExtension == null ? null : resourceHyperlinkExtension.getExtension();

	}

	public static String getGeneratedPrefix(String fileType) {

		init();

		RegisteredResourceHyperlinkExtension resourceHyperlinkExtension = extensionByFileType.get(fileType);

		return resourceHyperlinkExtension == null ? null : resourceHyperlinkExtension.getGeneratedPrefix();

	}

	public static String getUnknownGeneratedPrefix() {

		init();

		RegisteredResourceHyperlinkExtension unknownResourceHyperlinkExtension = extensionByFileType.get("unknown");

		return unknownResourceHyperlinkExtension == null ? null

				: unknownResourceHyperlinkExtension.getGeneratedPrefix();

	}

	public static List<IResourceHyperlinkExtension> getResourceHyperlinkExtensions() {

		init();

		ArrayList<IResourceHyperlinkExtension> resourceHyperlinkExtensions = new ArrayList<IResourceHyperlinkExtension>(

				extensionByFileType.size());

		for (RegisteredResourceHyperlinkExtension resourceHyperlinkExtension : extensionByFileType.values()) {

			resourceHyperlinkExtensions.add(resourceHyperlinkExtension.getExtension());

		}

		return resourceHyperlinkExtensions;

	}

	private static void init() {

		if (!initialized) {

			initialized = true;

			ResourceHyperlinkExtensionReader.initExtensions();

		}

	}

}

/*******************************************************************************

 * Copyright (c) 2004, 2007 Mylyn project committers 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

 *******************************************************************************/

package org.eclipse.mylyn.internal.sandbox.ui.hyperlinks;

import org.eclipse.jface.text.hyperlink.IHyperlink;

/**

 * @author Jingwen Ou

 */

public interface IResourceHyperlinkExtension {

	/**

	 * find specific hyperlinks in text

	 */

	IHyperlink[] findHyperlink(String text, int lineOffset, int regionOffset);

}