case-study/jdt-before/core refactoring/org/eclipse/jdt/internal/corext/refactoring/nls/changes/CreateTextFileChange.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2008 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.internal.corext.refactoring.nls.changes;
  12
  13 import java.io.IOException;
  14 import java.io.InputStream;
  15
  16 import org.eclipse.core.runtime.CoreException;
  17 import org.eclipse.core.runtime.IPath;
  18 import org.eclipse.core.runtime.NullProgressMonitor;
  19
  20 import org.eclipse.core.resources.IFile;
  21
  22 import org.eclipse.jdt.core.IJavaModelStatusConstants;
  23 import org.eclipse.jdt.core.JavaModelException;
  24
  25 import org.eclipse.jdt.internal.corext.refactoring.nls.NLSUtil;
  26
  27 public class CreateTextFileChange extends CreateFileChange {
  28
  29         private final String fTextType;
  30
  31         public CreateTextFileChange(IPath path, String source, String encoding, String textType) {
  32                 super(path, source, encoding);
  33                 fTextType= textType;
  34         }
  35
  36         public String getTextType() {
  37                 return fTextType;
  38         }
  39
  40         public String getCurrentContent() throws JavaModelException {
  41                 IFile file= getOldFile(new NullProgressMonitor());
  42                 if (! file.exists())
  43                         return ""; //$NON-NLS-1$
  44                 InputStream stream= null;
  45                 try{
  46                         stream= file.getContents();
  47                         String encoding= file.getCharset();
  48                         String c= NLSUtil.readString(stream, encoding);
  49                         return (c == null) ? "": c; //$NON-NLS-1$
  50                 } catch (CoreException e){
  51                         throw new JavaModelException(e, IJavaModelStatusConstants.CORE_EXCEPTION);
  52                 } finally {
  53                         try {
  54                                 if (stream != null)
  55                                         stream.close();
  56                         } catch (IOException x) {
  57                         }
  58                 }
  59         }
  60
  61         public String getPreview() {
  62                 return getSource();
  63         }
  64 }
  65