| /* |
| * 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.web.refactoring; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Enumeration; |
| import java.util.List; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| import org.netbeans.modules.refactoring.api.Problem; |
| import org.netbeans.modules.refactoring.spi.SimpleRefactoringElementImplementation; |
| import org.netbeans.modules.web.api.webmodule.WebModule; |
| import org.netbeans.modules.web.taglib.TLDDataObject; |
| import org.netbeans.modules.web.taglib.TLDLoader; |
| import org.netbeans.modules.web.taglib.model.Taglib; |
| import org.openide.filesystems.FileObject; |
| import org.openide.loaders.DataObject; |
| import org.openide.loaders.DataObjectNotFoundException; |
| import org.openide.text.PositionBounds; |
| import org.openide.util.Exceptions; |
| import org.openide.util.Lookup; |
| |
| /** |
| * A base class for TLD refactorings. |
| * |
| * @author Erno Mononen |
| */ |
| public abstract class TldRefactoring implements WebRefactoring{ |
| |
| private static final Logger LOGGER = Logger.getLogger(TldRefactoring.class.getName()); |
| |
| public Problem preCheck() { |
| return null; |
| } |
| |
| protected List<TaglibHandle> getTaglibs(WebModule wm){ |
| FileObject webInf = wm.getWebInf(); |
| if (webInf == null){ |
| return Collections.<TaglibHandle>emptyList(); |
| } |
| |
| List<TaglibHandle> result = new ArrayList<TaglibHandle>(); |
| Enumeration<? extends FileObject> children = webInf.getChildren(true); |
| while(children.hasMoreElements()){ |
| FileObject child = children.nextElement(); |
| if (!isTld(child)) { |
| continue; |
| } |
| Taglib taglib = null; |
| try { |
| taglib = getTaglib(child); |
| } catch (IOException ioe) { |
| // just log it - s2b could not create a graph for the file, probably not a valid file |
| // user is notified about it in the refactoring dialog |
| LOGGER.log(Level.FINE, "Failed to create Taglib graph for " + child, ioe); |
| } |
| result.add(new TaglibHandle(taglib, child)); |
| } |
| return result; |
| } |
| |
| private boolean isTld(FileObject fo){ |
| return TLDLoader.tldExt.equalsIgnoreCase(fo.getExt()); |
| } |
| |
| private Taglib getTaglib(FileObject tld) throws IOException { |
| DataObject tldData = null; |
| try { |
| tldData = DataObject.find(tld); |
| } catch (DataObjectNotFoundException dne) { |
| Exceptions.printStackTrace(dne); |
| } |
| Taglib result = null; |
| if (tldData instanceof TLDDataObject) { |
| result = ((TLDDataObject) tldData).getTaglib(); |
| } |
| return result; |
| } |
| |
| |
| protected static class TaglibHandle { |
| |
| private final Taglib taglib; |
| private final FileObject tldFile; |
| private final boolean valid; |
| |
| private TaglibHandle(Taglib taglib, FileObject tldFile) { |
| this.taglib = taglib; |
| this.tldFile = tldFile; |
| this.valid = taglib != null; |
| } |
| |
| /** |
| * @return the taglib represented by <code>tldFile</code> or <code>null</code> |
| * if it was not valid (see {@link #isValid}). |
| */ |
| public Taglib getTaglib() { |
| return taglib; |
| } |
| |
| public FileObject getTldFile() { |
| return tldFile; |
| } |
| |
| /** |
| * @return true if the encapsulated taglib is valid, false otherwise (meaning |
| * that can't be refactored). |
| */ |
| public boolean isValid() { |
| return valid; |
| } |
| |
| } |
| |
| protected abstract static class TldRefactoringElement extends SimpleRefactoringElementImplementation{ |
| |
| protected final Taglib taglib; |
| protected final FileObject tldFile; |
| protected final String clazz; |
| |
| public TldRefactoringElement(String clazz, Taglib taglib, FileObject tldFile) { |
| this.clazz = clazz; |
| this.taglib = taglib; |
| this.tldFile = tldFile; |
| } |
| |
| public String getText() { |
| return getDisplayText(); |
| } |
| |
| public Lookup getLookup() { |
| return Lookup.EMPTY; |
| } |
| |
| public FileObject getParentFile() { |
| return tldFile; |
| } |
| |
| public PositionBounds getPosition() { |
| try { |
| //XXX: does not work correctly when a class is specified more than once in one tld file |
| return new PositionBoundsResolver(DataObject.find(tldFile), clazz).getPositionBounds(); |
| } catch (DataObjectNotFoundException ex) { |
| Exceptions.printStackTrace(ex); |
| } |
| return null; |
| } |
| |
| protected void write() { |
| try { |
| TLDDataObject tdo = (TLDDataObject) DataObject.find(tldFile); |
| if (tdo != null) { |
| tdo.write(taglib); |
| } |
| } catch (IOException ioe) { |
| Exceptions.printStackTrace(ioe); |
| } |
| } |
| |
| |
| } |
| } |