singh-akhilesh commented on a change in pull request #2334: URL: https://github.com/apache/netbeans/pull/2334#discussion_r501087686
########## File path: java/java.project.ui/src/org/netbeans/spi/java/project/support/ui/CreateJavaClassFileFromClipboard.java ########## @@ -0,0 +1,258 @@ +/* + * 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.spi.java.project.support.ui; + +import com.sun.source.tree.ClassTree; +import com.sun.source.tree.CompilationUnitTree; +import com.sun.source.tree.Tree; +import com.sun.source.util.JavacTask; +import java.awt.Toolkit; +import java.awt.datatransfer.Clipboard; +import java.awt.datatransfer.DataFlavor; +import java.awt.datatransfer.Transferable; +import java.awt.datatransfer.UnsupportedFlavorException; +import java.io.BufferedWriter; +import java.io.File; +import java.io.FileWriter; +import java.io.IOException; +import java.net.URI; +import java.util.Arrays; +import java.util.Set; +import java.util.regex.Matcher; +import java.util.regex.Pattern; +import javax.swing.JOptionPane; +import javax.tools.JavaCompiler; +import javax.tools.JavaFileObject; +import javax.tools.SimpleJavaFileObject; +import javax.tools.StandardJavaFileManager; +import javax.tools.ToolProvider; +import org.netbeans.api.java.classpath.ClassPath; +import org.netbeans.api.java.source.ClasspathInfo; +import org.netbeans.api.java.source.CompilationController; +import org.netbeans.api.java.source.CompilationInfo; +import org.netbeans.api.java.source.JavaSource; +import org.netbeans.api.java.source.Task; +import org.openide.filesystems.FileObject; +import org.openide.filesystems.FileUtil; +import org.openide.loaders.DataFolder; +import org.openide.util.Exceptions; +import org.openide.util.datatransfer.PasteType; + +/** + * + * @author aksinsin + */ +public class CreateJavaClassFileFromClipboard extends PasteType { + + private static final String PUBLIC_MODIFIER = "public"; //NOI18N + + private final DataFolder context; + private final Transferable t; + + public CreateJavaClassFileFromClipboard(DataFolder context, Transferable t) { + this.context = context; + this.t = t; + } + + @Override + public Transferable paste() throws IOException { + try { + Clipboard c = Toolkit.getDefaultToolkit().getSystemClipboard(); + if (!c.isDataFlavorAvailable(DataFlavor.stringFlavor)) { + return t; + } + String copiedData = (String) c.getData(DataFlavor.stringFlavor); + CreateJavaClassFileFromClipboard.ClassContent classContent = extractPackageAndClassName(copiedData); + if (classContent == null) { + JOptionPane.showMessageDialog(null, "Code not valid to create class"); //NOI18N + return t; + } + Set<FileObject> files = this.context.files(); + if (files.size() != 1) { + return t; + } + String path = files.iterator().next().getPath(); + File fileName = new File(path + File.separator + classContent.getClassName() + ".java"); //NOI18N + if (fileName.exists()) { + JOptionPane.showMessageDialog(null, "Cannot create class already present"); //NOI18N + return t; + } + if (!fileName.createNewFile()) { + JOptionPane.showMessageDialog(null, "Cannot create file"); //NOI18N + return t; + } + + if (classContent.getPackageName() != null) { + copiedData = removePackage(copiedData, classContent.getPackageName()); + } + try (BufferedWriter bw = new BufferedWriter(new FileWriter(fileName))) { + String packageLocation = getPackageNameFromFile(fileName); + if (packageLocation != null && !packageLocation.isEmpty()) { + copiedData = "package " + packageLocation + ";\n" + copiedData;// NOI18N + } + bw.write(copiedData); + } + + } catch (UnsupportedFlavorException ex) { + Exceptions.printStackTrace(ex); + } catch (IOException ex) { + Exceptions.printStackTrace(ex); + } + return t; + } + + + private static class DeadlockTask implements Task<CompilationController> { + + JavaSource.Phase phase; + CompilationInfo info; + + public DeadlockTask(JavaSource.Phase phase) { + assert phase != null; + this.phase = phase; + } + + public void run(CompilationController info) { + try { + info.toPhase(this.phase); + this.info = info; + } catch (IOException ioe) { + } + } + + } + + private ClassContent extractPackageAndClassName(String copiedData) { + JavaCompiler compiler = ToolProvider.getSystemJavaCompiler(); + StandardJavaFileManager fileManager = compiler.getStandardFileManager(null, null, null); + + String publicFirstClassName = null; + String nonPublicFirstClassName = null; + String packageName = null; + int counter = 0; + JavaCompiler.CompilationTask task = compiler.getTask(null, fileManager, null, null, null, Arrays.asList(new MyFileObject(copiedData))); + parse: + try { + for (CompilationUnitTree compilationUnitTree : ((JavacTask) task).parse()) { + packageName = compilationUnitTree.getPackageName() != null + ? compilationUnitTree.getPackageName().toString() : null; + for (Tree tree : compilationUnitTree.getTypeDecls()) { + if (tree instanceof ClassTree) { + final ClassTree classTree = (ClassTree) tree; + if (classTree.toString().trim().startsWith(PUBLIC_MODIFIER)) { + publicFirstClassName = classTree.getSimpleName().toString(); + break parse; + } + if (counter == 0) { + nonPublicFirstClassName = classTree.getSimpleName().toString(); + counter++; + } + } + } + } + } catch (Exception ex) { Review comment: Expecting IOExection here, changed this to IOException. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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