1 files changed, 0 insertions, 322 deletions
diff --git a/org.eclipse.ui.editors/src/org/eclipse/ui/texteditor/DocumentProviderRegistry.java b/org.eclipse.ui.editors/src/org/eclipse/ui/texteditor/DocumentProviderRegistry.java
deleted file mode 100644
index 773584ff9c1..00000000000
--- a/org.eclipse.ui.editors/src/org/eclipse/ui/texteditor/DocumentProviderRegistry.java
+++ /dev/null
@@ -1,322 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2004 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials 
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- * 
- * Contributors:
- *     IBM Corporation - initial API and implementation
- *******************************************************************************/
-package org.eclipse.ui.texteditor;
-
-import java.text.MessageFormat;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Hashtable;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.StringTokenizer;
-
-import org.osgi.framework.Bundle;
-
-import org.eclipse.core.resources.IFile;
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IConfigurationElement;
-import org.eclipse.core.runtime.IExtensionPoint;
-import org.eclipse.core.runtime.ILog;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Platform;
-import org.eclipse.core.runtime.Status;
-
-import org.eclipse.ui.editors.text.EditorsUI;
-
-import org.eclipse.ui.IEditorInput;
-import org.eclipse.ui.PlatformUI;
-
-
-/**
- * This registry manages shared document providers. Document
- * providers are specified in <code>plugin.xml</code> either 
- * per name extension or per editor input type. A name extension
- * rule always overrules an editor input type rule. Editor input
- * type rules follow the same rules <code>IAdapterManager</code>
- * used to find object adapters.
- *
- * @see org.eclipse.core.runtime.IAdapterManager
- */
-public class DocumentProviderRegistry {
-	
-	/** The registry singleton. */
-	private static DocumentProviderRegistry fgRegistry;
-	
-	/**
-	 * Returns the standard document provider registry.
-	 * 
-	 * @return the default document provider registry
-	 */
-	public static DocumentProviderRegistry getDefault() {
-		if (fgRegistry == null)
-			fgRegistry= new DocumentProviderRegistry();
-		return fgRegistry;
-	}
-	
-	
-	/** The mapping between name extensions and configuration elements. */
-	private Map fExtensionMapping= new HashMap();
-	/** The mapping between editor input type names and configuration elements. */
-	private Map fInputTypeMapping= new HashMap();
-	/** The mapping between configuration elements and instantiated document providers. */
-	private Map fInstances= new HashMap();
-	
-	
-	/**
-	 * Creates a new document provider registry and initializes it with the information
-	 * found in the plug-in registry.
-	 */
-	private DocumentProviderRegistry() {
-		initialize();
-	}
-	
-	/**
-	 * Reads the comma-separated value of the given configuration element 
-	 * for the given attribute name and remembers the configuration element
-	 * in the given map under the individual tokens of the attribute value.
-	 * 
-	 * @param map the map
-	 * @param element the configuration element
-	 * @param attributeName the attribute name
-	 */
-	private void read(Map map, IConfigurationElement element, String attributeName) {
-		String value= element.getAttribute(attributeName);
-		if (value != null) {
-			StringTokenizer tokenizer= new StringTokenizer(value, ","); //$NON-NLS-1$
-			while (tokenizer.hasMoreTokens()) {
-				String token= tokenizer.nextToken().trim();
-				
-				Set s= (Set) map.get(token);
-				if (s == null) {
-					s= new HashSet();
-					map.put(token, s);
-				}
-				s.add(element);
-			}
-		}
-	}
-	
-	/**
-	 * Initializes the document provider registry. It retrieves all implementers of the <code>documentProviders</code>
-	 * extension point and remembers those implementers based on the name extensions and the editor input
-	 * types they are for.
-	 */
-	private void initialize() {
-		
-		IExtensionPoint extensionPoint;
-		extensionPoint= Platform.getExtensionRegistry().getExtensionPoint(EditorsUI.PLUGIN_ID, "documentProviders"); //$NON-NLS-1$
-		
-		if (extensionPoint == null) {
-			String msg= MessageFormat.format(TextEditorMessages.getString("DocumentProviderRegistry.error.extension_point_not_found"), new Object[] { PlatformUI.PLUGIN_ID }); //$NON-NLS-1$
-			Bundle bundle = Platform.getBundle(PlatformUI.PLUGIN_ID);			
-			ILog log= Platform.getLog(bundle);		
-			log.log(new Status(IStatus.ERROR, PlatformUI.PLUGIN_ID, 0, msg, null));
-			return;
-		}
-		
-		IConfigurationElement[] elements= extensionPoint.getConfigurationElements();
-		for (int i= 0; i < elements.length; i++) {
-			read(fExtensionMapping, elements[i], "extensions"); //$NON-NLS-1$
-			read(fInputTypeMapping, elements[i], "inputTypes"); //$NON-NLS-1$
-		}
-	}
-	
-	/**
-	 * Returns the document provider for the given configuration element.
-	 * If there is no instantiated document provider remembered for this
-	 * element, a new document provider is created and put into the cache.
-	 * 
-	 * @param entry the configuration element
-	 * @return the document provider for the given entry
-	 */
-	private IDocumentProvider getDocumentProvider(IConfigurationElement entry) {
-		IDocumentProvider provider= (IDocumentProvider) fInstances.get(entry);
-		if (provider == null) {
-			try {
-				provider= (IDocumentProvider) entry.createExecutableExtension("class"); //$NON-NLS-1$
-				fInstances.put(entry, provider);
-			} catch (CoreException x) {
-			}
-		}
-		return provider;
-	}
-	
-	/**
-	 * Returns the first enumerated element of the given set.
-	 * 
-	 * @param set the set
-	 * @return the first configuration element in the set or <code>null</code> if none 
-	 */
-	private IConfigurationElement selectConfigurationElement(Set set) {
-		if (set != null && !set.isEmpty()) {
-			Iterator e= set.iterator();
-			return (IConfigurationElement) e.next();
-		}
-		return null;
-	}
-	
-	/**
-	 * Returns a shared document provider for the given name extension.
-	 *
-	 * @param extension the name extension to be used for lookup
-	 * @return the shared document provider or <code>null</code>
-	 */
-	public IDocumentProvider getDocumentProvider(String extension) {
-		
-		Set set= (Set) fExtensionMapping.get(extension);
-		if (set != null) {
-			IConfigurationElement entry= selectConfigurationElement(set);
-			return getDocumentProvider(entry);
-		}
-		return null;
-	}
-	
-	/**
-	 * Computes the class hierarchy of the given type. The type is
-	 * part of the computed hierarchy.
-	 * 
-	 * @param type the type
-	 * @return a list containing the super class hierarchy
-	 */
-	private List computeClassList(Class type) {
-		
-		List result= new ArrayList();
-		
-		Class c= type;
-		while (c != null) {
-			result.add(c);
-			c= c.getSuperclass();
-		}
-		
-		return result;
-	}
-	
-	/**
-	 * Computes the list of all interfaces for the given list of
-	 * classes. The interface lists of the given classes are 
-	 * concatenated.
-	 * 
-	 * @param classes a list of {@link java.lang.Class} objects
-	 * @return a list with elements of type <code>Class</code>
-	 */
-	private List computeInterfaceList(List classes) {
-		
-		List result= new ArrayList(4);
-		Hashtable visited= new Hashtable(4);
-		
-		Iterator e= classes.iterator();
-		while (e.hasNext()) {
-			Class c= (Class) e.next();
-			computeInterfaceList(c.getInterfaces(), result, visited);
-		}
-		
-		return result;
-	}
-	
-	/**
-	 * Computes the list of all interfaces of the given list of interfaces,
-	 * taking a depth-first approach.
-	 * 
-	 * @param interfaces an array of {@link java.lang.Class} objects denoting interfaces
-	 * @param result the result list
-	 * @param visited map of visited interfaces 
-	 */
-	private void computeInterfaceList(Class[] interfaces, List result, Hashtable visited) {
-		
-		List toBeVisited= new ArrayList(interfaces.length);
-		
-		for (int i= 0; i < interfaces.length; i++) {
-			Class iface= interfaces[i];
-			if (visited.get(iface) == null) {
-				visited.put(iface, iface);
-				result.add(iface);
-				toBeVisited.add(iface);
-			}
-		}
-		
-		Iterator e= toBeVisited.iterator();
-		while(e.hasNext()) {
-			Class iface= (Class) e.next();
-			computeInterfaceList(iface.getInterfaces(), result, visited);
-		}
-	}
-	
-	/**
-	 * Returns the configuration elements for the first class in the list
-	 * of given classes for which configuration elements have been remembered.
-	 * 
-	 * @param classes a list of {@link java.lang.Class} objects
-	 * @return an input type mapping or <code>null</code>
-	 */
-	private Object getFirstInputTypeMapping(List classes) {
-		Iterator e= classes.iterator();
-		while (e.hasNext()) {
-			Class c= (Class) e.next();
-			Object mapping= fInputTypeMapping.get(c.getName());
-			if (mapping != null)
-				return mapping;
-		}
-		return null;
-	}
-	
-	/**
-	 * Returns the appropriate configuration element for the given type. If
-	 * there is no configuration element for the type's name, first the list of
-	 * super classes is searched, and if not successful the list of all interfaces.
-	 * 
-	 * @param type a {@link java.lang.Class} object
-	 * @return an input type mapping or <code>null</code>
-	 */
-	private Object findInputTypeMapping(Class type) {
-		
-		if (type == null)
-			return null;
-			
-		Object mapping= fInputTypeMapping.get(type.getName());
-		if (mapping != null)
-			return mapping;
-			
-		List classList= computeClassList(type);
-		mapping= getFirstInputTypeMapping(classList);
-		if (mapping != null)
-			return mapping;
-			
-		return getFirstInputTypeMapping(computeInterfaceList(classList));
-	}
-	
-	/**
-	 * Returns the shared document for the type of the given editor input.
-	 *
-	 * @param editorInput the input for whose type the provider is looked up
-	 * @return the shared document provider
-	 */
-	public IDocumentProvider getDocumentProvider(IEditorInput editorInput) {
-		
-		IDocumentProvider provider= null;
-		
-		IFile file= (IFile) editorInput.getAdapter(IFile.class);
-		if (file != null)
-			provider= getDocumentProvider(file.getFileExtension());
-		
-		if (provider == null) {
-			Set set= (Set) findInputTypeMapping(editorInput.getClass());
-			if (set != null) {
-				IConfigurationElement entry= selectConfigurationElement(set);
-				provider= getDocumentProvider(entry);
-			}
-		}
-		
-		return provider;
-	}
-}