|
1 package com.quikj.server.framework;
2
3 import java.io.*;
4
5 public class AceConfigTableFileParser
6 {
7 public static final String  ACE_GLOBALDATA_HOME_ENV_NAME = "ACE_GLOBAL_HOME";
8 public static final String ACE_LOCALDATA_HOME_ENV_NAME = "ACE_LOCAL_HOME";
9 public static final String DEFAULT_ACE_GLOBALDATA_HOME = "global";
10 public static final String DEFAULT_ACE_LOCALDATA_HOME = "local";
11 public static final String COMMENT_CHAR = "!";
12 public static final char QUOTE_CHAR = '\"';
13
14 public static final int GLOBAL_DATA = 0;
15 public static final int LOCAL_DATA = 1;
16
17 public static final String envNames[] =
19 {
20 ACE_GLOBALDATA_HOME_ENV_NAME,
21 ACE_LOCALDATA_HOME_ENV_NAME
22 };
23
24 public static final String defaultEnvNames[] =
25 {
26 DEFAULT_ACE_GLOBALDATA_HOME,
27 DEFAULT_ACE_LOCALDATA_HOME
28 };
29
30 public AceConfigTableFileParser(int data_type, String dir, String file)
31 throws FileNotFoundException, IOException, ArrayIndexOutOfBoundsException
32 {
33 absPath = AceConfigTableFileParser.getAcePath(data_type, dir, file);
34
35 File config_file = new File(absPath);
36 lineReader = new LineNumberReader(new FileReader(config_file));
37
38 String line;
39 do
40 {
41 line = lineReader.readLine();
42 if (line != null)
43 {
44 String tline = line.trim();
45 if (tline.length() > 0)
46 {
47 if (tline.startsWith(COMMENT_CHAR) == false)
48 {
49 numLines++;
50 }
51 }
52 }
53 }
54 while (line != null);
55
56 lineReader.close();
57 lineReader = null;
58 }
59
60 public void dispose()
61 {
62 try
63 {
64 if (lineReader != null)
65 {
66 lineReader.close();
67 lineReader = null;
68 }
69 }
70 catch (IOException ex)
71 {
72 System.err.println("AceConfigTableFileParser.dispose() -- Error occured while closing file :"
73 + absPath
74 + " : " + ex.getMessage());
75 }
76 }
77
78 public static String getAcePath(int data_type, String dir, String file)
79 throws ArrayIndexOutOfBoundsException
80 {
81 String ace_home = System.getProperty(envNames[data_type]);
82 if (ace_home == null)
83 {
84 ace_home = defaultEnvNames[data_type];
85 }
86
87 String path;
88 if (file.length() > 0)
89 {
90 path = new String (ace_home + File.separator
91 + dir + File.separator
92 + file);
93 }
94 else
95 {
96 path = new String (ace_home + File.separator
97 + dir);
98 }
99 return path;
100 }
101
102 public static String getAcePath(int data_type, String dir)
103 throws ArrayIndexOutOfBoundsException
104 {
105 return getAcePath(data_type, dir, "");
106 }
107
108 public static String convertAbsPathToURL(String path)
109 {
110 char[] array = path.toCharArray();
111
112 for (int i = 0; i < array.length; i++)
113 {
114 if (array[i] == '\\') {
116 array[i] = '/';
117 }
118 }
119
120 if (array[0] == '/')
121 {
122 return "file:" + new String (array);
123 }
124 else
125 {
126 return "file:/" + new String (array);
127 }
128 }
129
130 public int numRecords()
131 {
132 return numLines;
133 }
134
135 public AceConfigTableRecord nextRecord()
136 {
137
138 if (lineReader == null) {
140 try
141 {
142 lineReader = new LineNumberReader(new FileReader(absPath));
143 }
144 catch (FileNotFoundException ex)
145 {
146 return null;
148 }
149 }
150 try
151 {
152 while (true)
153 {
154 String line = lineReader.readLine();
155 if (line != null)
156 {
157 AceConfigTableRecord cfg = new AceConfigTableRecord(line);
158 if (cfg.numberOfTokens() > 0)
159 {
160 return cfg;
161 }
162 }
163 else
164 {
165 lineReader.close();
167 lineReader = null;
168 return null;
169 }
170 }
171 }
172 catch (IOException ex)
173 {
174 return null;
175 }
176 }
177
178 public String getAbsolutePath()
179 {
180 return new String (absPath);
181 }
182
183 private int numLines = 0;
184 private LineNumberReader lineReader = null;
185 private String absPath;
186 }
187
188
189
190
191
192
193 |
Popular Tags |
Java API By Example, From Geeks To Geeks.