| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed 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. |
| */ |
| |
| /* |
| * @author: Eugene Zhuravlev |
| * Date: Jul 4, 2003 |
| * Time: 7:39:27 PM |
| */ |
| package com.intellij.uiDesigner.make; |
| |
| import com.intellij.compiler.impl.StateCache; |
| import com.intellij.openapi.compiler.CompilerPaths; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.fileEditor.FileDocumentManager; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.io.FileUtil; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.uiDesigner.compiler.Utils; |
| import com.intellij.uiDesigner.lw.LwRootContainer; |
| import org.jetbrains.annotations.NonNls; |
| |
| import java.io.*; |
| |
| final class BindingsCache { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.uiDesigner.make.BindingsCache"); |
| @NonNls |
| private static final String BINDINGS_FILE_NAME = "formbinding.dat"; |
| private StateCache<MyState> myCache; |
| |
| public BindingsCache(final Project project) { |
| final File cacheStoreDirectory = CompilerPaths.getCacheStoreDirectory(project); |
| try { |
| if (cacheStoreDirectory != null) { |
| FileUtil.createParentDirs(cacheStoreDirectory); |
| myCache = createCache(cacheStoreDirectory); |
| } |
| else { |
| myCache = null; |
| } |
| } |
| catch (IOException e) { |
| LOG.info(e); |
| for (File file : cacheStoreDirectory.listFiles()) { |
| if (file.getName().startsWith(BINDINGS_FILE_NAME)) { |
| FileUtil.delete(file); |
| } |
| } |
| try { |
| myCache = createCache(cacheStoreDirectory); |
| } |
| catch (IOException e1) { |
| LOG.info(e1); |
| myCache = null; |
| } |
| } |
| } |
| |
| private static StateCache<MyState> createCache(final File cacheStoreDirectory) throws IOException { |
| return new StateCache<MyState>(new File(cacheStoreDirectory, BINDINGS_FILE_NAME)) { |
| public MyState read(final DataInput stream) throws IOException { |
| return new MyState(stream.readLong(), stream.readUTF()); |
| } |
| |
| public void write(final MyState myState, final DataOutput out) throws IOException { |
| out.writeLong(myState.getFormTimeStamp()); |
| out.writeUTF(myState.getClassName()); |
| } |
| }; |
| } |
| |
| public String getBoundClassName(final VirtualFile formFile) throws Exception { |
| String classToBind = getSavedBinding(formFile); |
| if (classToBind == null) { |
| final Document doc = FileDocumentManager.getInstance().getDocument(formFile); |
| final LwRootContainer rootContainer = Utils.getRootContainer(doc.getText(), null); |
| classToBind = rootContainer.getClassToBind(); |
| } |
| if (classToBind != null) { |
| updateCache(formFile, classToBind); |
| } |
| return classToBind; |
| } |
| |
| private String getSavedBinding(final VirtualFile formFile) { |
| if (myCache != null) { |
| try { |
| final String formUrl = formFile.getUrl(); |
| final MyState state = myCache.getState(formUrl); |
| if (state != null) { |
| if (formFile.getTimeStamp() == state.getFormTimeStamp()) { |
| return state.getClassName(); |
| } |
| } |
| } |
| catch (IOException e) { |
| myCache.wipe(); |
| } |
| } |
| return null; |
| } |
| |
| private void updateCache(final VirtualFile formFile, final String classToBind) { |
| if (myCache != null) { |
| final String url = formFile.getUrl(); |
| final MyState state = new MyState(formFile.getTimeStamp(), classToBind); |
| try { |
| myCache.update(url, state); |
| } |
| catch (IOException e) { |
| LOG.info(e); |
| myCache.wipe(); |
| try { |
| myCache.update(url, state); |
| } |
| catch (IOException ignored) { |
| } |
| } |
| } |
| } |
| |
| public void close() { |
| try { |
| myCache.close(); |
| } |
| catch (IOException e) { |
| LOG.info(e); |
| } |
| } |
| |
| private static final class MyState implements Serializable{ |
| private final long myFormTimeStamp; |
| private final String myClassName; |
| |
| public MyState(final long formTimeStamp, final String className){ |
| myFormTimeStamp = formTimeStamp; |
| myClassName = className; |
| } |
| |
| public long getFormTimeStamp(){ |
| return myFormTimeStamp; |
| } |
| |
| public String getClassName(){ |
| return myClassName; |
| } |
| } |
| } |