1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 * String-based document object

    17 *

    18 */

    19 package com.nokia.tracecompiler.document;

    20 

    21 import java.util.ArrayList;

    22 

    23 import com.nokia.tracecompiler.source.SourceParserException;

    24 import com.nokia.tracecompiler.utils.DocumentAdapter;

    25 

    26 /**

    27  * String-based document object

    28  * 

    29  */

    30 class StringDocument extends DocumentAdapter {

    31 

    32 	/**

    33 	 * The document data

    34 	 */

    35 	private String sourceData;

    36 

    37 	/**

    38 	 * Line information

    39 	 */

    40 	private ArrayList<Integer> lines = new ArrayList<Integer>();

    41 

    42 	/**

    43 	 * Constructor

    44 	 */

    45 	StringDocument() {

    46 	}

    47 

    48 	/**

    49 	 * Constructor

    50 	 * 

    51 	 * @param data

    52 	 *            the document data

    53 	 */

    54 	StringDocument(String data) {

    55 		setSourceData(data);

    56 	}

    57 

    58 	/**

    59 	 * Sets the source data

    60 	 * 

    61 	 * @param data

    62 	 *            the source data

    63 	 */

    64 	void setSourceData(String data) {

    65 		this.sourceData = data;

    66 		if (data.length() > 0) {

    67 			lines.add(0);

    68 		}

    69 		for (int i = 0; i < data.length(); i++) {

    70 			if (data.charAt(i) == '\n') {

    71 				lines.add(i + 1);

    72 			}

    73 		}

    74 	}

    75 

    76 	/*

    77 	 * (non-Javadoc)

    78 	 * 

    79 	 * @see com.nokia.tracecompiler.utils.DocumentAdapter#get(int, int)

    80 	 */

    81 	@Override

    82 	public String get(int start, int length) throws SourceParserException {

    83 		return sourceData.substring(start, start + length);

    84 	}

    85 

    86 	/*

    87 	 * (non-Javadoc)

    88 	 * 

    89 	 * @see com.nokia.tracecompiler.utils.DocumentAdapter#getChar(int)

    90 	 */

    91 	@Override

    92 	public char getChar(int offset) throws SourceParserException {

    93 		return sourceData.charAt(offset);

    94 	}

    95 

    96 	/*

    97 	 * (non-Javadoc)

    98 	 * 

    99 	 * @see com.nokia.tracecompiler.utils.DocumentAdapter#getLength()

   100 	 */

   101 	@Override

   102 	public int getLength() {

   103 		return sourceData.length();

   104 	}

   105 

   106 	/*

   107 	 * (non-Javadoc)

   108 	 * 

   109 	 * @see com.nokia.tracecompiler.utils.DocumentAdapter#getLineOfOffset(int)

   110 	 */

   111 	@Override

   112 	public int getLineOfOffset(int offset) throws SourceParserException {

   113 		int retval = -1;

   114 		if (offset >= 0 && offset < sourceData.length()) {

   115 			for (int i = 0; i < lines.size(); i++) {

   116 				int lineStart = lines.get(i);

   117 				if (lineStart > offset) {

   118 					retval = i - 1;

   119 					i = lines.size();

   120 				}

   121 			}

   122 		}

   123 		return retval;

   124 	}

   125 

   126 }