| /* |
| * Copyright (c) 2002 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 - Initial API and implementation |
| * Jens Lukowski/Innoopract - initial renaming/restructuring |
| * |
| */ |
| package org.eclipse.wst.common.uriresolver.internal; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.wst.common.uriresolver.internal.provisional.URIResolver; |
| import org.eclipse.wst.common.uriresolver.internal.provisional.URIResolverExtension; |
| |
| |
| /** |
| * @author csalter |
| * |
| * To change the template for this generated type comment go to |
| * Window>Preferences>Java>Code Generation>Code and Comments |
| */ |
| public class ExtensibleURIResolver implements URIResolver |
| { |
| |
| //protected IProject project; |
| |
| //TODO... consider ctor that takes a project arg |
| //public ExtensibleURIResolver(IProject project) |
| //{ |
| // this.project = project; |
| //} |
| |
| public ExtensibleURIResolver() |
| { |
| } |
| |
| public String resolve(String baseLocation, String publicId, String systemId) |
| { |
| String result = systemId; |
| |
| // compute the project that holds the resource |
| // |
| IFile file = computeFile(baseLocation); |
| IProject project = file != null ? file.getProject() : null; |
| String fileName = null; // todo.. get the file name for systemId |
| |
| URIResolverExtensionRegistry resolverRegistry = URIResolverExtensionRegistry.getIntance(); |
| List list = resolverRegistry.getExtensionDescriptors(project); |
| |
| // get the list of applicable pre-normalized resolvers from the |
| // extension registry |
| // |
| for (Iterator i = resolverRegistry.getMatchingURIResolvers(list, URIResolverExtensionRegistry.STAGE_PRENORMALIZATION).iterator(); i.hasNext();) |
| { |
| URIResolverExtension resolver = (URIResolverExtension) i.next(); |
| String tempresult = resolver.resolve(file, baseLocation, publicId, result); |
| if(tempresult != null) |
| { |
| result = tempresult; |
| } |
| } |
| |
| // normalize the uri |
| // |
| result = normalize(baseLocation, result); |
| |
| // get the list of applicable post-normalized resolvers from the |
| // extension registry |
| // |
| for (Iterator i = resolverRegistry.getMatchingURIResolvers(list, URIResolverExtensionRegistry.STAGE_POSTNORMALIZATION).iterator(); i.hasNext();) |
| { |
| URIResolverExtension resolver = (URIResolverExtension) i.next(); |
| String tempresult = resolver.resolve(file, baseLocation, publicId, result); |
| if(tempresult != null) |
| { |
| result = tempresult; |
| } |
| } |
| |
| return result; |
| } |
| |
| protected String normalize(String baseLocation, String systemId) |
| { |
| // If no systemId has been specified there is nothing to do |
| // so return null; |
| if(systemId == null) |
| return null; |
| String result = systemId; |
| // normalize the URI |
| URI systemURI = URI.createURI(systemId); |
| if (systemURI.isRelative()) |
| { |
| URI baseURI = URI.createURI(baseLocation); |
| try |
| { |
| result = systemURI.resolve(baseURI).toString(); |
| } |
| catch(IllegalArgumentException e) |
| {} |
| |
| } |
| return result; |
| } |
| |
| protected IFile computeFile(String baseLocation) |
| { |
| IFile file = null; |
| if (baseLocation != null) |
| { |
| String pattern = "file:///"; |
| if (baseLocation.startsWith(pattern)) |
| { |
| baseLocation = baseLocation.substring(pattern.length()); |
| } |
| IPath path = new Path(baseLocation); |
| file = ResourcesPlugin.getWorkspace().getRoot().getFileForLocation(path); |
| } |
| return file; |
| } |
| } |