| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.netbeans.modules.xml.catalog.impl; |
| |
| import java.awt.Image; |
| import java.lang.reflect.*; |
| import java.util.*; |
| import java.io.Serializable; |
| |
| import org.xml.sax.*; |
| |
| import org.openide.util.Lookup; |
| import org.openide.xml.EntityCatalog; |
| import org.openide.filesystems.*; |
| |
| import org.netbeans.modules.xml.catalog.spi.*; |
| import java.io.IOException; |
| |
| /** |
| * Read mapping redistered in IDE system resolver/catalog. |
| * It uses knowledge of IDE catalog implementation. |
| * |
| * @author Petr Kuzel |
| * @version 1.0 |
| * |
| */ |
| public class SystemCatalogReader implements EntityResolver, CatalogReader, Serializable { |
| |
| /** Serial Version UID */ |
| private static final long serialVersionUID = -6353123780493006631L; |
| |
| /** Creates new SystemCatalogReader */ |
| public SystemCatalogReader() { |
| } |
| |
| /** |
| * Get String iterator representing all public IDs registered in catalog. |
| */ |
| public Iterator getPublicIDs() { |
| |
| HashSet set = new HashSet(); |
| boolean found = false; |
| |
| // inspect system/xml/entities |
| |
| FileObject root = FileUtil.getConfigFile("xml/entities"); |
| Enumeration en = root.getChildren(true); |
| while (en.hasMoreElements()) { |
| FileObject next = (FileObject) en.nextElement(); |
| if (next.isData()) { |
| Object hint = next.getAttribute("hint.originalPublicID"); |
| if (hint instanceof String) { |
| set.add(hint); |
| found = true; |
| } else { |
| // we could guess it, BUT it is too dangerous |
| } |
| } |
| } |
| |
| // get instance of system resolver that contains the catalog |
| |
| Lookup.Template templ = new Lookup.Template(EntityCatalog.class); |
| Lookup.Result res = Lookup.getDefault().lookup(templ); |
| |
| Iterator it = res.allInstances().iterator(); |
| while (it.hasNext()) { |
| EntityCatalog next = (EntityCatalog) it.next(); |
| |
| try { |
| |
| //BACKWARD COMPATABILITY it is explicit knowledge how it worked in NetBeans 3.2 |
| Field uriMapF = next.getClass().getDeclaredField("id2uri"); // NOI18N |
| if (uriMapF == null) continue; |
| |
| uriMapF.setAccessible(true); |
| found = true; |
| |
| Map uris = (Map) uriMapF.get(next); |
| if (uris != null) { |
| set.addAll(uris.keySet()); |
| } |
| } catch (NoSuchFieldException ex) { |
| // ignore unknown implementation |
| } catch (IllegalAccessException ex) { |
| // ignore unknown implementation |
| } catch (IllegalArgumentException ex) { |
| // ignore unknown implementation |
| } |
| } |
| |
| return (found == false) ? null : set.iterator(); |
| } |
| |
| |
| /** |
| * Get registered systemid for given public Id or null if not registered. |
| */ |
| public String getSystemID(String publicId) { |
| |
| try { |
| EntityResolver sysResolver = EntityCatalog.getDefault(); |
| |
| if (sysResolver == null) return null; |
| |
| InputSource in = sysResolver.resolveEntity(publicId, null); |
| if (in == null) return null; |
| |
| return in.getSystemId(); |
| |
| } catch (java.io.IOException ex) { |
| return null; |
| } catch (SAXException ex) { |
| return null; |
| } |
| } |
| |
| /** |
| * No refresh is necessary, it is always fresh in RAM. |
| */ |
| public void refresh() { |
| } |
| |
| |
| /** |
| * Optional operation allowing to listen at catalog for changes. |
| * @throws UnsupportedOpertaionException if not supported by the implementation. |
| */ |
| public void addCatalogListener(CatalogListener l) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** |
| * Optional operation couled with addCatalogListener. |
| * @see addCatalogListener |
| */ |
| public void removeCatalogListener(CatalogListener l) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /* |
| * System catalog is singleton. |
| */ |
| public boolean equals(Object obj) { |
| if (obj == null) return false; |
| return getClass().equals(obj.getClass()); |
| } |
| |
| public int hashCode() { |
| return getClass().hashCode(); |
| } |
| |
| /** |
| * Delegate to entity catalog to resolve unlisted elements. |
| */ |
| public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException { |
| return EntityCatalog.getDefault().resolveEntity(publicId, systemId); |
| } |
| |
| /** |
| * Get registered URI for the given name or null if not registered. |
| * @return null if not registered |
| */ |
| public String resolveURI(String name) { |
| return null; |
| } |
| /** |
| * Get registered URI for the given publicId or null if not registered. |
| * @return null if not registered |
| */ |
| public String resolvePublic(String publicId) { |
| return null; |
| } |
| |
| } |