org.eclipse.jdt.ui/core refactoring/org/eclipse/jdt/internal/corext/refactoring/nls/PropertyFileDocumentModel.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2011 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.internal.corext.refactoring.nls;

 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.Iterator;
 import java.util.List;

 import com.ibm.icu.text.Collator;

 import org.eclipse.text.edits.DeleteEdit;
 import org.eclipse.text.edits.InsertEdit;
 import org.eclipse.text.edits.ReplaceEdit;

 import org.eclipse.jface.text.BadLocationException;
 import org.eclipse.jface.text.IDocument;
 import org.eclipse.jface.text.TextUtilities;

 import org.eclipse.ltk.core.refactoring.TextChange;

 import org.eclipse.jdt.internal.corext.refactoring.changes.TextChangeCompatibility;
 import org.eclipse.jdt.internal.corext.util.Messages;
 import org.eclipse.jdt.internal.corext.util.Strings;

 import org.eclipse.jdt.internal.ui.propertiesfileeditor.PropertiesFileEscapes;
 import org.eclipse.jdt.internal.ui.viewsupport.BasicElementLabels;

 public class PropertyFileDocumentModel {

 	private List<KeyValuePairModell> fKeyValuePairs;
     private String fLineDelimiter;

     public PropertyFileDocumentModel(IDocument document) {
         parsePropertyDocument(document);
         fLineDelimiter= TextUtilities.getDefaultLineDelimiter(document);
     }

     /**
 	 * @return the line delimiter used by the document described by this model
 	 */
     public String getLineDelimiter() {
 		return fLineDelimiter;
 	}

     /**
 	 * Return the key value pair in this model with the key <code>key</code>
 	 *
 	 * @param key the key of the pair
 	 * @return the pair with the key or <b>null</b> if no such pair.
 	 */
     public KeyValuePair getKeyValuePair(String key) {
     	for (int i= 0; i < fKeyValuePairs.size(); i++) {
             KeyValuePairModell keyValuePair = fKeyValuePairs.get(i);
             if (keyValuePair.getKey().equals(key)) {
             	return keyValuePair;
             }
     	}
     	return null;
     }

     private InsertEdit insert(KeyValuePair keyValuePair) {
         KeyValuePairModell keyValuePairModell = new KeyValuePairModell(keyValuePair);
         int index = findInsertPosition(keyValuePairModell);
         KeyValuePairModell insertHere = fKeyValuePairs.get(index);
         int offset = insertHere.fOffset;

         String extra= ""; //$NON-NLS-1$
         if (insertHere instanceof LastKeyValuePair && ((LastKeyValuePair)insertHere).needsNewLine()) {
         	extra= fLineDelimiter;
         	((LastKeyValuePair)insertHere).resetNeedsNewLine();
         	offset-= insertHere.fLeadingWhiteSpaces;
         } else if (index > 0) {
         	String beforeKey= fKeyValuePairs.get(index - 1).fKey;
 			String afterKey= insertHere.fKey;
 			String key= keyValuePair.fKey;
 			int distBefore= NLSUtil.invertDistance(key, beforeKey);
 			int distAfter= NLSUtil.invertDistance(key, afterKey);
 			if (distBefore > distAfter) {
 				offset-= insertHere.fLeadingWhiteSpaces;
 			} else if (distBefore == distAfter && Collator.getInstance().compare(beforeKey, afterKey) < 0) {
 				offset-= insertHere.fLeadingWhiteSpaces;
 			} else {
 				//insert it before afterKey -> move the leading white spaces to the inserted pair
 				keyValuePairModell.fLeadingWhiteSpaces= insertHere.fLeadingWhiteSpaces;
 				insertHere.fLeadingWhiteSpaces= 0;
 			}
         }

         keyValuePairModell.fOffset= offset;
         fKeyValuePairs.add(index, keyValuePairModell);
         return new InsertEdit(offset, extra + keyValuePairModell.getKeyValueText());
     }

     /**
      * Inserts the given key value pairs into this model at appropriate
      * positions. Records all required text changes in the given change
      *
      * @param keyValuePairs the key value pairs to insert
      * @param change the change to use to record text changes
      */
     public void insert(KeyValuePair[] keyValuePairs, TextChange change) {

         ArrayList<KeyValuePair> sorted= new ArrayList<KeyValuePair>(Arrays.asList(keyValuePairs));
         Collections.sort(sorted, new Comparator<KeyValuePair>() {
 			public int compare(KeyValuePair p1, KeyValuePair p2) {
 				return Collator.getInstance().compare(p1.fKey, p2.fKey);
 			}
         });

         for (int i = 0; i < sorted.size(); i++) {
             KeyValuePair curr= sorted.get(i);
 			InsertEdit insertEdit= insert(curr);

             String message= Messages.format(NLSMessages.NLSPropertyFileModifier_add_entry, BasicElementLabels.getJavaElementName(curr.getKey()));
 			TextChangeCompatibility.addTextEdit(change, message, insertEdit);
         }
     }

     public DeleteEdit remove(String key) {
     	for (Iterator<KeyValuePairModell> iter = fKeyValuePairs.iterator(); iter.hasNext();) {
             KeyValuePairModell keyValuePair = iter.next();
             if (keyValuePair.fKey.equals(key)) {
             	return new DeleteEdit(keyValuePair.fOffset, keyValuePair.getLength());
             }
         }
         return null;
     }

     public ReplaceEdit replace(KeyValuePair toReplace, KeyValuePair replaceWith) {
         for (Iterator<KeyValuePairModell> iter = fKeyValuePairs.iterator(); iter.hasNext();) {
             KeyValuePairModell keyValuePair = iter.next();
             if (keyValuePair.fKey.equals(toReplace.getKey())) {
                 String newText= new KeyValuePairModell(replaceWith).getKeyValueText();
                 return new ReplaceEdit(keyValuePair.fOffset, keyValuePair.getLength(), newText);
             }
         }
         return null;
     }

     private int findInsertPosition(KeyValuePairModell keyValuePair) {
     	ArrayList<String> keys= new ArrayList<String>();
         for (int i= 0; i < fKeyValuePairs.size(); i++) {
             KeyValuePairModell element = fKeyValuePairs.get(i);
             if (! (element instanceof LastKeyValuePair))
             	keys.add(element.getKey());
         }
         int insertIndex= NLSUtil.getInsertionPosition(keyValuePair.getKey(), keys);

         if (insertIndex < fKeyValuePairs.size() - 1) {
             insertIndex++;
         }

         return insertIndex;
     }

     private void parsePropertyDocument(IDocument document) {
         fKeyValuePairs = new ArrayList<KeyValuePairModell>();

         SimpleLineReader reader = new SimpleLineReader(document);
         int offset = 0;
         String line = reader.readLine();
         int leadingWhiteSpaces = 0;
         while (line != null) {
             if (!SimpleLineReader.isCommentOrWhiteSpace(line)) {
                 int idx = getIndexOfSeparationCharacter(line);
                 if (idx != -1) {
 					String key= line.substring(0, idx).trim();
 					String value= Strings.trimLeadingTabsAndSpaces(line.substring(idx + 1));
                     fKeyValuePairs.add(new KeyValuePairModell(key, value, offset, leadingWhiteSpaces));
                     leadingWhiteSpaces = 0;
                 }
             } else {
                 leadingWhiteSpaces += line.length();
             }
             offset += line.length();
             line = reader.readLine();
         }
         int lastLine= document.getNumberOfLines() - 1;
         boolean needsNewLine= false;
         try {
         	needsNewLine= !(document.getLineLength(lastLine) == 0);
 		} catch (BadLocationException ignore) {
 			// treat last line having no new line
 		}
         LastKeyValuePair lastKeyValuePair = new LastKeyValuePair(offset, needsNewLine);
 		fKeyValuePairs.add(lastKeyValuePair);
     }

     private int getIndexOfSeparationCharacter(String line) {
         int minIndex = -1;
         int indexOfEven = line.indexOf('=');
         int indexOfColumn = line.indexOf(':');
         int indexOfBlank = line.indexOf(' ');

         if ((indexOfEven != -1) && (indexOfColumn != -1)) {
             minIndex = Math.min(indexOfEven, indexOfColumn);
         } else {
             minIndex = Math.max(indexOfEven, indexOfColumn);
         }

 		if ((minIndex == -1) && (indexOfBlank != -1)) {
 			minIndex= indexOfBlank;
         }

         return minIndex;
     }

 	public static String escape(String s, boolean escapeCommentCharsAndLeadingWhitespaces) {
 		StringBuffer sb= new StringBuffer(s.length());
 		int length= s.length();
 		for (int i= 0; i < length; i++){
 			char c= s.charAt(i);
 			sb.append(PropertiesFileEscapes.escape(c));
 		}
 		if(!escapeCommentCharsAndLeadingWhitespaces)
 			return sb.toString();
 		return escapeLeadingWhiteSpaces(escapeCommentChars(sb.toString()));
 	}

 	private static String escapeCommentChars(String string) {
 	    StringBuffer sb = new StringBuffer(string.length() + 5);
 	    for (int i = 0; i < string.length(); i++) {
 	      char c = string.charAt(i);
 	      switch (c) {
 	      case '!':
 	        sb.append("\\!"); //$NON-NLS-1$
 	        break;
 	      case '#':
 	        sb.append("\\#"); //$NON-NLS-1$
 	        break;
 	      default:
 	        sb.append(c);
 	      }
 	    }
 	    return sb.toString();
 	}

 	private static String escapeLeadingWhiteSpaces(String str) {
 		int firstNonWhiteSpace= findFirstNonWhiteSpace(str);
 		StringBuffer buf= new StringBuffer(firstNonWhiteSpace);
 		for (int i = 0; i < firstNonWhiteSpace; i++) {
 			buf.append('\\');
 		    buf.append(str.charAt(i));
 		}
 		buf.append(str.substring(firstNonWhiteSpace));
 		return buf.toString();
 	}

 	/**
 	 * @param s the string to inspect
 	 * @return the first non whitespace character, the length if only whitespace characters
 	 */
 	private static int findFirstNonWhiteSpace(String s) {
 		for (int i = 0; i < s.length(); i++) {
 			if (!Character.isWhitespace(s.charAt(i)))
 				return i;
 		}
 		return s.length();
 	}

 	private static class KeyValuePairModell extends KeyValuePair {

         int fOffset;
         int fLeadingWhiteSpaces;

         public KeyValuePairModell(String key, String value, int offset, int leadingWhiteSpaces) {
             super(key, value);
             fOffset = offset;
             fLeadingWhiteSpaces = leadingWhiteSpaces;
         }

 		public KeyValuePairModell(KeyValuePair keyValuePair) {
             super(keyValuePair.fKey, keyValuePair.fValue);
         }

 		public int getLength() {
 			return fKey.length() + 1 + fValue.length();
 		}

         private String getKeyValueText() {
 			return fKey + '=' + fValue;
         }
     }

     /**
      * anchor element for a list of KeyValuePairs. (it is greater than every
      * other KeyValuePair)
      */
     private static class LastKeyValuePair extends KeyValuePairModell {

     	private boolean fNeedsNewLine;

         public LastKeyValuePair(int offset, boolean needsNewLine) {
             super("zzzzzzz", "key", offset, 0); //$NON-NLS-1$ //$NON-NLS-2$
             fNeedsNewLine= needsNewLine;
         }
         public boolean needsNewLine() {
         	return fNeedsNewLine;
         }
         public void resetNeedsNewLine() {
         	fNeedsNewLine= false;
         }
     }
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2011 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.internal.corext.refactoring.nls;

	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.Collections;
	import java.util.Comparator;
	import java.util.Iterator;
	import java.util.List;

	import com.ibm.icu.text.Collator;

	import org.eclipse.text.edits.DeleteEdit;
	import org.eclipse.text.edits.InsertEdit;
	import org.eclipse.text.edits.ReplaceEdit;

	import org.eclipse.jface.text.BadLocationException;
	import org.eclipse.jface.text.IDocument;
	import org.eclipse.jface.text.TextUtilities;

	import org.eclipse.ltk.core.refactoring.TextChange;

	import org.eclipse.jdt.internal.corext.refactoring.changes.TextChangeCompatibility;
	import org.eclipse.jdt.internal.corext.util.Messages;
	import org.eclipse.jdt.internal.corext.util.Strings;

	import org.eclipse.jdt.internal.ui.propertiesfileeditor.PropertiesFileEscapes;
	import org.eclipse.jdt.internal.ui.viewsupport.BasicElementLabels;

	public class PropertyFileDocumentModel {

	private List<KeyValuePairModell> fKeyValuePairs;
	private String fLineDelimiter;

	public PropertyFileDocumentModel(IDocument document) {
	parsePropertyDocument(document);
	fLineDelimiter= TextUtilities.getDefaultLineDelimiter(document);
	}

	/**
	* @return the line delimiter used by the document described by this model
	*/
	public String getLineDelimiter() {
	return fLineDelimiter;
	}

	/**
	* Return the key value pair in this model with the key <code>key</code>
	*
	* @param key the key of the pair
	* @return the pair with the key or <b>null</b> if no such pair.
	*/
	public KeyValuePair getKeyValuePair(String key) {
	for (int i= 0; i < fKeyValuePairs.size(); i++) {
	KeyValuePairModell keyValuePair = fKeyValuePairs.get(i);
	if (keyValuePair.getKey().equals(key)) {
	return keyValuePair;
	}
	}
	return null;
	}

	private InsertEdit insert(KeyValuePair keyValuePair) {
	KeyValuePairModell keyValuePairModell = new KeyValuePairModell(keyValuePair);
	int index = findInsertPosition(keyValuePairModell);
	KeyValuePairModell insertHere = fKeyValuePairs.get(index);
	int offset = insertHere.fOffset;

	String extra= ""; //$NON-NLS-1$
	if (insertHere instanceof LastKeyValuePair && ((LastKeyValuePair)insertHere).needsNewLine()) {
	extra= fLineDelimiter;
	((LastKeyValuePair)insertHere).resetNeedsNewLine();
	offset-= insertHere.fLeadingWhiteSpaces;
	} else if (index > 0) {
	String beforeKey= fKeyValuePairs.get(index - 1).fKey;
	String afterKey= insertHere.fKey;
	String key= keyValuePair.fKey;
	int distBefore= NLSUtil.invertDistance(key, beforeKey);
	int distAfter= NLSUtil.invertDistance(key, afterKey);
	if (distBefore > distAfter) {
	offset-= insertHere.fLeadingWhiteSpaces;
	} else if (distBefore == distAfter && Collator.getInstance().compare(beforeKey, afterKey) < 0) {
	offset-= insertHere.fLeadingWhiteSpaces;
	} else {
	//insert it before afterKey -> move the leading white spaces to the inserted pair
	keyValuePairModell.fLeadingWhiteSpaces= insertHere.fLeadingWhiteSpaces;
	insertHere.fLeadingWhiteSpaces= 0;
	}
	}

	keyValuePairModell.fOffset= offset;
	fKeyValuePairs.add(index, keyValuePairModell);
	return new InsertEdit(offset, extra + keyValuePairModell.getKeyValueText());
	}

	/**
	* Inserts the given key value pairs into this model at appropriate
	* positions. Records all required text changes in the given change
	*
	* @param keyValuePairs the key value pairs to insert
	* @param change the change to use to record text changes
	*/
	public void insert(KeyValuePair[] keyValuePairs, TextChange change) {

	ArrayList<KeyValuePair> sorted= new ArrayList<KeyValuePair>(Arrays.asList(keyValuePairs));
	Collections.sort(sorted, new Comparator<KeyValuePair>() {
	public int compare(KeyValuePair p1, KeyValuePair p2) {
	return Collator.getInstance().compare(p1.fKey, p2.fKey);
	}
	});

	for (int i = 0; i < sorted.size(); i++) {
	KeyValuePair curr= sorted.get(i);
	InsertEdit insertEdit= insert(curr);

	String message= Messages.format(NLSMessages.NLSPropertyFileModifier_add_entry, BasicElementLabels.getJavaElementName(curr.getKey()));
	TextChangeCompatibility.addTextEdit(change, message, insertEdit);
	}
	}

	public DeleteEdit remove(String key) {
	for (Iterator<KeyValuePairModell> iter = fKeyValuePairs.iterator(); iter.hasNext();) {
	KeyValuePairModell keyValuePair = iter.next();
	if (keyValuePair.fKey.equals(key)) {
	return new DeleteEdit(keyValuePair.fOffset, keyValuePair.getLength());
	}
	}
	return null;
	}

	public ReplaceEdit replace(KeyValuePair toReplace, KeyValuePair replaceWith) {
	for (Iterator<KeyValuePairModell> iter = fKeyValuePairs.iterator(); iter.hasNext();) {
	KeyValuePairModell keyValuePair = iter.next();
	if (keyValuePair.fKey.equals(toReplace.getKey())) {
	String newText= new KeyValuePairModell(replaceWith).getKeyValueText();
	return new ReplaceEdit(keyValuePair.fOffset, keyValuePair.getLength(), newText);
	}
	}
	return null;
	}

	private int findInsertPosition(KeyValuePairModell keyValuePair) {
	ArrayList<String> keys= new ArrayList<String>();
	for (int i= 0; i < fKeyValuePairs.size(); i++) {
	KeyValuePairModell element = fKeyValuePairs.get(i);
	if (! (element instanceof LastKeyValuePair))
	keys.add(element.getKey());
	}
	int insertIndex= NLSUtil.getInsertionPosition(keyValuePair.getKey(), keys);

	if (insertIndex < fKeyValuePairs.size() - 1) {
	insertIndex++;
	}

	return insertIndex;
	}

	private void parsePropertyDocument(IDocument document) {
	fKeyValuePairs = new ArrayList<KeyValuePairModell>();

	SimpleLineReader reader = new SimpleLineReader(document);
	int offset = 0;
	String line = reader.readLine();
	int leadingWhiteSpaces = 0;
	while (line != null) {
	if (!SimpleLineReader.isCommentOrWhiteSpace(line)) {
	int idx = getIndexOfSeparationCharacter(line);
	if (idx != -1) {
	String key= line.substring(0, idx).trim();
	String value= Strings.trimLeadingTabsAndSpaces(line.substring(idx + 1));
	fKeyValuePairs.add(new KeyValuePairModell(key, value, offset, leadingWhiteSpaces));
	leadingWhiteSpaces = 0;
	}
	} else {
	leadingWhiteSpaces += line.length();
	}
	offset += line.length();
	line = reader.readLine();
	}
	int lastLine= document.getNumberOfLines() - 1;
	boolean needsNewLine= false;
	try {
	needsNewLine= !(document.getLineLength(lastLine) == 0);
	} catch (BadLocationException ignore) {
	// treat last line having no new line
	}
	LastKeyValuePair lastKeyValuePair = new LastKeyValuePair(offset, needsNewLine);
	fKeyValuePairs.add(lastKeyValuePair);
	}

	private int getIndexOfSeparationCharacter(String line) {
	int minIndex = -1;
	int indexOfEven = line.indexOf('=');
	int indexOfColumn = line.indexOf(':');
	int indexOfBlank = line.indexOf(' ');

	if ((indexOfEven != -1) && (indexOfColumn != -1)) {
	minIndex = Math.min(indexOfEven, indexOfColumn);
	} else {
	minIndex = Math.max(indexOfEven, indexOfColumn);
	}

	if ((minIndex == -1) && (indexOfBlank != -1)) {
	minIndex= indexOfBlank;
	}

	return minIndex;
	}

	public static String escape(String s, boolean escapeCommentCharsAndLeadingWhitespaces) {
	StringBuffer sb= new StringBuffer(s.length());
	int length= s.length();
	for (int i= 0; i < length; i++){
	char c= s.charAt(i);
	sb.append(PropertiesFileEscapes.escape(c));
	}
	if(!escapeCommentCharsAndLeadingWhitespaces)
	return sb.toString();
	return escapeLeadingWhiteSpaces(escapeCommentChars(sb.toString()));
	}

	private static String escapeCommentChars(String string) {
	StringBuffer sb = new StringBuffer(string.length() + 5);
	for (int i = 0; i < string.length(); i++) {
	char c = string.charAt(i);
	switch (c) {
	case '!':
	sb.append("\\!"); //$NON-NLS-1$
	break;
	case '#':
	sb.append("\\#"); //$NON-NLS-1$
	break;
	default:
	sb.append(c);
	}
	}
	return sb.toString();
	}

	private static String escapeLeadingWhiteSpaces(String str) {
	int firstNonWhiteSpace= findFirstNonWhiteSpace(str);
	StringBuffer buf= new StringBuffer(firstNonWhiteSpace);
	for (int i = 0; i < firstNonWhiteSpace; i++) {
	buf.append('\\');
	buf.append(str.charAt(i));
	}
	buf.append(str.substring(firstNonWhiteSpace));
	return buf.toString();
	}

	/**
	* @param s the string to inspect
	* @return the first non whitespace character, the length if only whitespace characters
	*/
	private static int findFirstNonWhiteSpace(String s) {
	for (int i = 0; i < s.length(); i++) {
	if (!Character.isWhitespace(s.charAt(i)))
	return i;
	}
	return s.length();
	}

	private static class KeyValuePairModell extends KeyValuePair {

	int fOffset;
	int fLeadingWhiteSpaces;

	public KeyValuePairModell(String key, String value, int offset, int leadingWhiteSpaces) {
	super(key, value);
	fOffset = offset;
	fLeadingWhiteSpaces = leadingWhiteSpaces;
	}

	public KeyValuePairModell(KeyValuePair keyValuePair) {
	super(keyValuePair.fKey, keyValuePair.fValue);
	}

	public int getLength() {
	return fKey.length() + 1 + fValue.length();
	}

	private String getKeyValueText() {
	return fKey + '=' + fValue;
	}
	}

	/**
	* anchor element for a list of KeyValuePairs. (it is greater than every
	* other KeyValuePair)
	*/
	private static class LastKeyValuePair extends KeyValuePairModell {

	private boolean fNeedsNewLine;

	public LastKeyValuePair(int offset, boolean needsNewLine) {
	super("zzzzzzz", "key", offset, 0); //$NON-NLS-1$ //$NON-NLS-2$
	fNeedsNewLine= needsNewLine;
	}
	public boolean needsNewLine() {
	return fNeedsNewLine;
	}
	public void resetNeedsNewLine() {
	fNeedsNewLine= false;
	}
	}
	}