1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/* Copyright 2013 Benjamin Linskey
*
* Licensed 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 com.benlinskey.grdbc;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.xml.parsers.ParserConfigurationException;
import org.xml.sax.SAXException;
/**
* Reads in an XML file containing the Overview of Greek Syntax text and stores
* sections of the text in an SQLite database.
*
* @author Ben Linskey
*
*/
public class SyntaxCreator {
private final static String FILE = "../xml/Perseus_text_1999.04.0052.xml";
private final static String DB = "syntax.db";
private final static String TABLE_NAME = "syntax";
private Connection connection;
private PreparedStatement insertStatement;
/**
* Class constructor.
*/
public SyntaxCreator() {
// Load driver.
try {
Class.forName("org.sqlite.JDBC");
} catch (ClassNotFoundException e) {
e.printStackTrace();
System.exit(1);
}
// Connect to database.
try {
connection = DriverManager.getConnection("jdbc:sqlite:" + DB);
} catch (SQLException e) {
e.printStackTrace();
System.exit(1);
}
// Use batch inserts for speed.
try {
connection.setAutoCommit(false);
} catch (SQLException e) {
e.printStackTrace();
System.exit(1);
}
createDatabase();
// Create a prepared statement to use when inserting entries.
try {
insertStatement = connection.prepareStatement("INSERT INTO "
+ TABLE_NAME + " VALUES (NULL, ?, ?, ?)");
} catch (SQLException e) {
e.printStackTrace();
System.exit(1);
}
}
/**
* Creates the Overview of Greek Syntax database.
*/
public void run() {
addSections();
try {
insertStatement.close();
connection.close();
} catch (SQLException e) {
e.printStackTrace();
System.exit(1);
}
System.out.println("Done.");
}
/**
* Resets the database if it already exists and creates a new, empty
* database.
*/
private void createDatabase() {
System.out.println("Creating lexicon database...");
try {
String dropTable = "DROP TABLE IF EXISTS " + TABLE_NAME;
String createTable = "CREATE TABLE " + TABLE_NAME + " ("
+ "_id INTEGER PRIMARY KEY, "
+ "chapter VARCHAR(100), " + "section VARCHAR(100), "
+ "xml TEXT)";
Statement statement = connection.createStatement();
statement.executeUpdate(dropTable);
statement.executeUpdate(createTable);
connection.commit();
statement.close();
} catch (SQLException e) {
e.printStackTrace();
System.exit(1);
}
}
/**
* Parses the XML file, modifies the sections, and inserts the modified data
* into the database.
*/
private void addSections() {
System.out.println("Inserting data...");
String chapter = null;
String section = null;
StringBuilder xml = new StringBuilder();
Pattern pattern = Pattern.compile("<head>(.*?)</head>");
try {
BufferedReader in = new BufferedReader(new FileReader(FILE));
while (in.ready()) {
String line = in.readLine();
if (line.startsWith("<div1")) {
// Get chapter title.
line = in.readLine(); // Next line is "head" element with
// title.
Matcher matcher = pattern.matcher(line);
matcher.find();
chapter = matcher.group(1);
if (chapter.equals("Sources Cited")) {
section = chapter;
xml.delete(0, xml.length());
xml.append("<section>");
xml.append("<head>Sources Cited</head>");
}
} else if (line.startsWith("<div2")) {
// Get section title.
line = in.readLine(); // Next line is "head" element with
// title.
Matcher matcher = pattern.matcher(line);
matcher.find();
section = matcher.group(1);
// Reset XML and add "head" element.
xml.delete(0, xml.length());
xml.append("<section>");
xml.append(line);
} else if (line.contains("</div2>")) {
// Get any XML before the "</div2>" tag.
String[] split = line.split("</div2>");
xml.append(split[0]);
// Add closing root tag.
xml.append("</section>");
SyntaxParser parser = new SyntaxParser(xml.toString());
String transcodedXml = parser.transcode();
// Add data to database.
insertStatement.setString(1, chapter);
insertStatement.setString(2, section);
insertStatement.setString(3, transcodedXml);
insertStatement.addBatch();
} else if (line.contains("</div1>")
&& chapter.equals("Sources Cited")) {
// Get any XML before the "</div2>" tag.
String[] split = line.split("</div1>");
xml.append(split[0]);
// Add closing root tag.
xml.append("</section>");
// Add data to database.
insertStatement.setString(1, chapter);
insertStatement.setString(2, section);
insertStatement.setString(3, xml.toString());
insertStatement.addBatch();
} else {
// Get next line of XML.
xml.append(line);
}
}
in.close();
insertStatement.executeBatch();
connection.commit();
} catch (SQLException e) {
e.printStackTrace();
System.exit(1);
} catch (IOException e) {
e.printStackTrace();
System.exit(1);
} catch (ParserConfigurationException e) {
e.printStackTrace();
System.exit(1);
} catch (SAXException e) {
e.printStackTrace();
System.exit(1);
}
}
}
|