Revision 466
trunk/libraries/libGDBMS/.classpath | ||
---|---|---|
1 |
<?xml version="1.0" encoding="UTF-8"?> |
|
2 |
<classpath> |
|
3 |
<classpathentry kind="src" path="src"/> |
|
4 |
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/> |
|
5 |
<classpathentry kind="src" path="/DriverManager"/> |
|
6 |
<classpathentry kind="lib" path="lib/mysql-connector-java-3.0.15-ga-bin.jar"/> |
|
7 |
<classpathentry kind="output" path="bin"/> |
|
8 |
</classpath> |
|
0 | 9 |
trunk/libraries/libGDBMS/.cvsignore | ||
---|---|---|
1 |
bin |
|
2 |
java.hprof.txt |
|
3 |
vias.dbf |
|
4 |
metrics |
|
0 | 5 |
trunk/libraries/libGDBMS/csv driver.jardesc | ||
---|---|---|
1 |
<?xml version="1.0" encoding="UTF-8"?> |
|
2 |
<jardesc> |
|
3 |
<jar path="C:/eclipse3.0.1/workspace/GDBMS/drivers/csv/driver.jar"/> |
|
4 |
<options overwrite="false" compress="true" exportErrors="true" exportWarnings="true" saveDescription="true" descriptionLocation="/GDBMS/csv driver.jardesc" useSourceFolders="false" buildIfNeeded="true"/> |
|
5 |
<manifest manifestVersion="1.0" usesManifest="true" reuseManifest="false" saveManifest="false" generateManifest="true" manifestLocation="/jws/al servidor"> |
|
6 |
<sealing sealJar="false"> |
|
7 |
<packagesToSeal/> |
|
8 |
<packagesToUnSeal/> |
|
9 |
</sealing> |
|
10 |
</manifest> |
|
11 |
<selectedElements exportClassFiles="true" exportOutputFolder="false" exportJavaFiles="false"> |
|
12 |
<javaElement handleIdentifier="=GDBMS/src<com.hardcode.gdbms.driver.csv"/> |
|
13 |
</selectedElements> |
|
14 |
</jardesc> |
|
0 | 15 |
trunk/libraries/libGDBMS/dbf driver.jardesc | ||
---|---|---|
1 |
<?xml version="1.0" encoding="UTF-8"?> |
|
2 |
<jardesc> |
|
3 |
<jar path="C:/eclipse3.0.1/workspace/GDBMS/drivers/dbf/driver.jar"/> |
|
4 |
<options overwrite="false" compress="true" exportErrors="true" exportWarnings="true" saveDescription="true" descriptionLocation="/GDBMS/dbf driver.jardesc" useSourceFolders="false" buildIfNeeded="true"/> |
|
5 |
<manifest manifestVersion="1.0" usesManifest="true" reuseManifest="false" saveManifest="false" generateManifest="true" manifestLocation="/jws/al servidor"> |
|
6 |
<sealing sealJar="false"> |
|
7 |
<packagesToSeal/> |
|
8 |
<packagesToUnSeal/> |
|
9 |
</sealing> |
|
10 |
</manifest> |
|
11 |
<selectedElements exportClassFiles="true" exportOutputFolder="false" exportJavaFiles="false"> |
|
12 |
<javaElement handleIdentifier="=GDBMS/src<com.hardcode.gdbms.driver.dbf"/> |
|
13 |
</selectedElements> |
|
14 |
</jardesc> |
|
0 | 15 |
trunk/libraries/libGDBMS/.project | ||
---|---|---|
1 |
<?xml version="1.0" encoding="UTF-8"?> |
|
2 |
<projectDescription> |
|
3 |
<name>GDBMS estable</name> |
|
4 |
<comment></comment> |
|
5 |
<projects> |
|
6 |
<project>DriverManager</project> |
|
7 |
<project>Utilities</project> |
|
8 |
</projects> |
|
9 |
<buildSpec> |
|
10 |
<buildCommand> |
|
11 |
<name>org.eclipse.jdt.core.javabuilder</name> |
|
12 |
<arguments> |
|
13 |
</arguments> |
|
14 |
</buildCommand> |
|
15 |
</buildSpec> |
|
16 |
<natures> |
|
17 |
<nature>org.eclipse.jem.workbench.JavaEMFNature</nature> |
|
18 |
<nature>org.eclipse.jdt.core.javanature</nature> |
|
19 |
<nature>org.eclipse.jem.beaninfo.BeanInfoNature</nature> |
|
20 |
</natures> |
|
21 |
</projectDescription> |
|
0 | 22 |
trunk/libraries/libGDBMS/compile.xml | ||
---|---|---|
1 |
<project name="all" default="compile-javacc" basedir="."> |
|
2 |
|
|
3 |
<target name="init"> |
|
4 |
<tstamp/> |
|
5 |
<property environment="env"/> |
|
6 |
<property name="src" value="src"/> |
|
7 |
<property name="build" value="bin"/> |
|
8 |
<property name="doc" value="/home/andrew/doc/html/javadoc" /> |
|
9 |
<property name="javacchome" value="C:/software/javacc-3.2"/> |
|
10 |
<!-- <property name="build.compiler" value="jikes" /> |
|
11 |
<property name="junitclasspath" value="/home/andrew/junit3.8.1/junit.jar"/> |
|
12 |
<property name="classpath" value="${junitclasspath}:${build}"/>--> |
|
13 |
<!-- <echo message="classpath: ${classpath}"/> --> |
|
14 |
</target> |
|
15 |
|
|
16 |
<target name="clean" depends="init"> |
|
17 |
<delete> |
|
18 |
<fileset dir="${build}"/> |
|
19 |
</delete> |
|
20 |
</target> |
|
21 |
|
|
22 |
<target name="compile-javacc" depends="init"> |
|
23 |
<delete failonerror="true"> |
|
24 |
<fileset dir="${src}/com/hardcode/gdbms/parser"> |
|
25 |
<include name="*.java"/> |
|
26 |
</fileset> |
|
27 |
</delete> |
|
28 |
<!-- <jjtree target="${src}/com/hardcode/gdbms/parser/sql.jj" |
|
29 |
static="no" |
|
30 |
nodescopehook="true" |
|
31 |
javacchome="${javacchome}"/>--> |
|
32 |
<javacc target="${src}/com/hardcode/gdbms/parser/sql.jj" |
|
33 |
static="no" |
|
34 |
javacchome="${javacchome}"/> |
|
35 |
</target> |
|
36 |
<!-- |
|
37 |
<target name="doc-public" depends="init"> |
|
38 |
<delete> |
|
39 |
<fileset dir="${doc}/public"/> |
|
40 |
</delete> |
|
41 |
<javadoc packagenames="org.acooke.*" |
|
42 |
sourcepath="${src}" |
|
43 |
destdir="${doc}/public" |
|
44 |
public="true"> |
|
45 |
<doctitle><![CDATA[<h1>org.acooke - public</h1>]]></doctitle> |
|
46 |
</javadoc> |
|
47 |
</target> |
|
48 |
|
|
49 |
<target name="doc-package" depends="init"> |
|
50 |
<delete> |
|
51 |
<fileset dir="${doc}/package"/> |
|
52 |
</delete> |
|
53 |
<javadoc packagenames="org.acooke.*" |
|
54 |
sourcepath="${src}" |
|
55 |
destdir="${doc}/package" |
|
56 |
package="true"> |
|
57 |
<doctitle><![CDATA[<h1>org.acooke - package</h1>]]></doctitle> |
|
58 |
</javadoc> |
|
59 |
</target> |
|
60 |
|
|
61 |
<target name="doc-private" depends="init"> |
|
62 |
<delete> |
|
63 |
<fileset dir="${doc}/private"/> |
|
64 |
</delete> |
|
65 |
<javadoc packagenames="org.acooke.*" |
|
66 |
sourcepath="${src}" |
|
67 |
destdir="${doc}/private" |
|
68 |
private="true"> |
|
69 |
<doctitle><![CDATA[<h1>org.acooke - private</h1>]]></doctitle> |
|
70 |
</javadoc> |
|
71 |
</target> |
|
72 |
|
|
73 |
<target name="doc" depends="init"> |
|
74 |
<parallel> |
|
75 |
<antcall target="doc-private"/> |
|
76 |
<antcall target="doc-package"/> |
|
77 |
<antcall target="doc-public"/> |
|
78 |
</parallel> |
|
79 |
</target> |
|
80 |
--> |
|
81 |
</project> |
|
0 | 82 |
trunk/libraries/libGDBMS/src/com/hardcode/gdbms/driver/mysql/Auz.java | ||
---|---|---|
1 |
/* |
|
2 |
* Created on 17-oct-2004 |
|
3 |
*/ |
|
4 |
package com.hardcode.gdbms.driver.mysql; |
|
5 |
|
|
6 |
import java.sql.Connection; |
|
7 |
import java.sql.DriverManager; |
|
8 |
import java.sql.Statement; |
|
9 |
|
|
10 |
|
|
11 |
/** |
|
12 |
* DOCUMENT ME! |
|
13 |
* |
|
14 |
* @author Fernando Gonz?lez Cort?s |
|
15 |
*/ |
|
16 |
public class Auz { |
|
17 |
/** |
|
18 |
* DOCUMENT ME! |
|
19 |
* |
|
20 |
* @param args DOCUMENT ME! |
|
21 |
*/ |
|
22 |
public static void main(String[] args) { |
|
23 |
try { |
|
24 |
Class.forName("com.mysql.jdbc.Driver").newInstance(); |
|
25 |
|
|
26 |
Connection conn = DriverManager.getConnection( |
|
27 |
"jdbc:mysql://localhost/prueba?user=root"); |
|
28 |
|
|
29 |
Statement s = conn.createStatement(); |
|
30 |
for (int i = 1000000; i <= 1000000; i++){ |
|
31 |
s.execute("INSERT INTO prueba values('cadena "+i+"')"); |
|
32 |
} |
|
33 |
s.close(); |
|
34 |
conn.close(); |
|
35 |
} catch (Exception ex) { |
|
36 |
ex.printStackTrace(); |
|
37 |
} |
|
38 |
} |
|
39 |
} |
|
0 | 40 |
trunk/libraries/libGDBMS/src/com/hardcode/gdbms/driver/mysql/MySQLDriver.java | ||
---|---|---|
1 |
/* |
|
2 |
* Created on 16-oct-2004 |
|
3 |
*/ |
|
4 |
package com.hardcode.gdbms.driver.mysql; |
|
5 |
|
|
6 |
import com.hardcode.driverManager.Driver; |
|
7 |
|
|
8 |
import com.hardcode.gdbms.engine.data.DBDriver; |
|
9 |
import com.hardcode.gdbms.engine.data.DriverException; |
|
10 |
import com.hardcode.gdbms.engine.values.Value; |
|
11 |
import com.hardcode.gdbms.engine.values.ValueFactory; |
|
12 |
|
|
13 |
import java.sql.Connection; |
|
14 |
import java.sql.DriverManager; |
|
15 |
import java.sql.ResultSet; |
|
16 |
import java.sql.SQLException; |
|
17 |
import java.sql.Statement; |
|
18 |
import java.sql.Types; |
|
19 |
|
|
20 |
|
|
21 |
/** |
|
22 |
* DOCUMENT ME! |
|
23 |
* |
|
24 |
* @author Fernando Gonz?lez Cort?s |
|
25 |
*/ |
|
26 |
public class MySQLDriver implements DBDriver, Driver { |
|
27 |
private static Exception driverException; |
|
28 |
|
|
29 |
static { |
|
30 |
try { |
|
31 |
Class.forName("com.mysql.jdbc.Driver").newInstance(); |
|
32 |
} catch (Exception ex) { |
|
33 |
driverException = ex; |
|
34 |
} |
|
35 |
} |
|
36 |
|
|
37 |
private Connection conn; |
|
38 |
private Statement st; |
|
39 |
private ResultSet res; |
|
40 |
private long tableLength; |
|
41 |
|
|
42 |
/** |
|
43 |
* DOCUMENT ME! |
|
44 |
* |
|
45 |
* @param host DOCUMENT ME! |
|
46 |
* @param port DOCUMENT ME! |
|
47 |
* @param dbName DOCUMENT ME! |
|
48 |
* @param user DOCUMENT ME! |
|
49 |
* @param password DOCUMENT ME! |
|
50 |
* |
|
51 |
* @throws SQLException |
|
52 |
* @throws RuntimeException DOCUMENT ME! |
|
53 |
* |
|
54 |
* @see com.hardcode.gdbms.engine.data.DBDriver#connect(java.lang.String) |
|
55 |
*/ |
|
56 |
public void connect(String host, int port, String dbName, String user, |
|
57 |
String password) throws SQLException { |
|
58 |
if (driverException != null) { |
|
59 |
throw new RuntimeException(driverException); |
|
60 |
} |
|
61 |
|
|
62 |
String connectionString = "jdbc:mysql://" + host; |
|
63 |
if (port != -1){ |
|
64 |
connectionString += ":" + port; |
|
65 |
} |
|
66 |
|
|
67 |
connectionString += "/" + dbName; |
|
68 |
|
|
69 |
if (user != null){ |
|
70 |
connectionString += "?user=" + user + "&password=" + password; |
|
71 |
} |
|
72 |
|
|
73 |
conn = DriverManager.getConnection(connectionString); |
|
74 |
} |
|
75 |
|
|
76 |
/** |
|
77 |
* DOCUMENT ME! |
|
78 |
* |
|
79 |
* @throws SQLException |
|
80 |
* |
|
81 |
* @see com.hardcode.gdbms.engine.data.DBDriver#closeConnection() |
|
82 |
*/ |
|
83 |
public void closeConnection() throws SQLException { |
|
84 |
conn.close(); |
|
85 |
} |
|
86 |
|
|
87 |
/** |
|
88 |
* @see com.hardcode.gdbms.engine.data.ReadDriver#getFieldValue(long, int) |
|
89 |
*/ |
|
90 |
public Value getFieldValue(long rowIndex, int fieldId) |
|
91 |
throws DriverException { |
|
92 |
try { |
|
93 |
fieldId++; |
|
94 |
res.absolute((int) rowIndex + 1); |
|
95 |
|
|
96 |
int type = res.getMetaData().getColumnType(fieldId); |
|
97 |
|
|
98 |
switch (type) { |
|
99 |
case Types.BIGINT: |
|
100 |
return ValueFactory.createValue(res.getLong(fieldId)); |
|
101 |
|
|
102 |
case Types.BIT: |
|
103 |
return ValueFactory.createValue(res.getBoolean(fieldId)); |
|
104 |
|
|
105 |
case Types.CHAR: |
|
106 |
return ValueFactory.createValue(res.getString(fieldId)); |
|
107 |
|
|
108 |
case Types.DATE: |
|
109 |
return ValueFactory.createValue(res.getDate(fieldId)); |
|
110 |
|
|
111 |
case Types.FLOAT: |
|
112 |
case Types.DOUBLE: |
|
113 |
return ValueFactory.createValue(res.getDouble(fieldId)); |
|
114 |
|
|
115 |
case Types.INTEGER: |
|
116 |
return ValueFactory.createValue(res.getInt(fieldId)); |
|
117 |
|
|
118 |
case Types.REAL: |
|
119 |
return ValueFactory.createValue(res.getFloat(fieldId)); |
|
120 |
|
|
121 |
case Types.VARCHAR: |
|
122 |
return ValueFactory.createValue(res.getString(fieldId)); |
|
123 |
|
|
124 |
case Types.VARBINARY: |
|
125 |
case Types.TINYINT: |
|
126 |
case Types.TIMESTAMP: |
|
127 |
case Types.TIME: |
|
128 |
case Types.SMALLINT: |
|
129 |
case Types.OTHER: |
|
130 |
case Types.NUMERIC: |
|
131 |
case Types.LONGVARCHAR: |
|
132 |
case Types.LONGVARBINARY: |
|
133 |
case Types.DECIMAL: |
|
134 |
case Types.BINARY:default: |
|
135 |
throw new DriverException("Type not recognized: " + type); |
|
136 |
} |
|
137 |
} catch (SQLException e) { |
|
138 |
throw new DriverException(e); |
|
139 |
} |
|
140 |
} |
|
141 |
|
|
142 |
/** |
|
143 |
* @see com.hardcode.gdbms.engine.data.ReadDriver#getFieldCount() |
|
144 |
*/ |
|
145 |
public int getFieldCount() throws DriverException { |
|
146 |
try { |
|
147 |
return res.getMetaData().getColumnCount(); |
|
148 |
} catch (SQLException e) { |
|
149 |
throw new DriverException(e); |
|
150 |
} |
|
151 |
} |
|
152 |
|
|
153 |
/** |
|
154 |
* @see com.hardcode.gdbms.engine.data.ReadDriver#getFieldName(int) |
|
155 |
*/ |
|
156 |
public String getFieldName(int fieldId) throws DriverException { |
|
157 |
try { |
|
158 |
fieldId++; |
|
159 |
return res.getMetaData().getColumnName(fieldId); |
|
160 |
} catch (SQLException e) { |
|
161 |
throw new DriverException(e); |
|
162 |
} |
|
163 |
} |
|
164 |
|
|
165 |
/** |
|
166 |
* @see com.hardcode.gdbms.engine.data.ReadDriver#getRowCount() |
|
167 |
*/ |
|
168 |
public long getRowCount() throws DriverException { |
|
169 |
return tableLength; |
|
170 |
} |
|
171 |
|
|
172 |
/** |
|
173 |
* @see com.hardcode.driverManager.Driver#getName() |
|
174 |
*/ |
|
175 |
public String getName() { |
|
176 |
return "mysql"; |
|
177 |
} |
|
178 |
|
|
179 |
/** |
|
180 |
* @see com.hardcode.gdbms.engine.data.DBDriver#openTable(java.lang.String) |
|
181 |
*/ |
|
182 |
public void openTable(String table) throws SQLException { |
|
183 |
st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, |
|
184 |
ResultSet.CONCUR_READ_ONLY); |
|
185 |
res = st.executeQuery("select * from " + table); |
|
186 |
res.last(); |
|
187 |
tableLength = res.getRow(); |
|
188 |
res.beforeFirst(); |
|
189 |
} |
|
190 |
|
|
191 |
/** |
|
192 |
* @see com.hardcode.gdbms.engine.data.DBDriver#closeTable() |
|
193 |
*/ |
|
194 |
public void closeTable() throws SQLException { |
|
195 |
res.close(); |
|
196 |
st.close(); |
|
197 |
} |
|
198 |
|
|
199 |
/** |
|
200 |
* @see com.hardcode.gdbms.engine.data.Delegable#executeSQL(java.lang.String) |
|
201 |
*/ |
|
202 |
public void executeSQL(String sql) throws SQLException { |
|
203 |
st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, |
|
204 |
ResultSet.CONCUR_READ_ONLY); |
|
205 |
res = st.executeQuery(sql); |
|
206 |
res.last(); |
|
207 |
tableLength = res.getRow(); |
|
208 |
res.beforeFirst(); |
|
209 |
} |
|
210 |
} |
|
0 | 211 |
trunk/libraries/libGDBMS/src/com/hardcode/gdbms/driver/csv/CSVDriver.java | ||
---|---|---|
1 |
package com.hardcode.gdbms.driver.csv; |
|
2 |
|
|
3 |
import java.io.BufferedReader; |
|
4 |
import java.io.File; |
|
5 |
import java.io.FileReader; |
|
6 |
import java.io.IOException; |
|
7 |
import java.util.ArrayList; |
|
8 |
|
|
9 |
import com.hardcode.driverManager.Driver; |
|
10 |
import com.hardcode.gdbms.engine.data.DriverException; |
|
11 |
import com.hardcode.gdbms.engine.data.FileDriver; |
|
12 |
import com.hardcode.gdbms.engine.values.IntValue; |
|
13 |
import com.hardcode.gdbms.engine.values.StringValue; |
|
14 |
import com.hardcode.gdbms.engine.values.Value; |
|
15 |
|
|
16 |
|
|
17 |
/** |
|
18 |
* Driver para ficheros csv, en el que la primera fila se toma como la que |
|
19 |
* define los nombres de los campos |
|
20 |
* |
|
21 |
* @author Fernando Gonz?lez Cort?s |
|
22 |
*/ |
|
23 |
public class CSVDriver implements Driver, FileDriver { |
|
24 |
private BufferedReader reader; |
|
25 |
private ArrayList lineas; |
|
26 |
|
|
27 |
/** |
|
28 |
* @see com.hardcode.gdbms.driver.Driver#getName() |
|
29 |
*/ |
|
30 |
public String getName() { |
|
31 |
return "csv"; |
|
32 |
} |
|
33 |
|
|
34 |
/** |
|
35 |
* @see com.hardcode.gdbms.data.DataSource#getFieldName(int) |
|
36 |
*/ |
|
37 |
public String getFieldName(int fieldId) throws DriverException { |
|
38 |
String[] campos = (String[]) lineas.get(0); |
|
39 |
|
|
40 |
return campos[fieldId]; |
|
41 |
} |
|
42 |
|
|
43 |
/** |
|
44 |
* @see com.hardcode.gdbms.data.DataSource#getIntFieldValue(int, int) |
|
45 |
*/ |
|
46 |
public Value getFieldValue(long rowIndex, int fieldId) |
|
47 |
throws DriverException { |
|
48 |
String[] campos = (String[]) lineas.get((int) (rowIndex + 1)); |
|
49 |
|
|
50 |
if (fieldId == 0) { |
|
51 |
IntValue value = new IntValue(); |
|
52 |
value.setValue(Integer.parseInt(campos[fieldId])); |
|
53 |
|
|
54 |
return value; |
|
55 |
} |
|
56 |
|
|
57 |
StringValue value = new StringValue(); |
|
58 |
value.setValue(campos[fieldId]); |
|
59 |
|
|
60 |
return value; |
|
61 |
} |
|
62 |
|
|
63 |
/** |
|
64 |
* @see com.hardcode.gdbms.data.DataSource#getFieldCount() |
|
65 |
*/ |
|
66 |
public int getFieldCount() throws DriverException { |
|
67 |
String[] campos = (String[]) lineas.get(0); |
|
68 |
|
|
69 |
return campos.length; |
|
70 |
} |
|
71 |
|
|
72 |
/** |
|
73 |
* @see com.hardcode.gdbms.data.DataSource#open(java.io.File) |
|
74 |
*/ |
|
75 |
public void open(File file) throws IOException { |
|
76 |
reader = new BufferedReader(new FileReader(file)); |
|
77 |
|
|
78 |
lineas = new ArrayList(); |
|
79 |
|
|
80 |
String aux; |
|
81 |
|
|
82 |
while ((aux = reader.readLine()) != null) { |
|
83 |
String[] campos = aux.split(";"); |
|
84 |
lineas.add(campos); |
|
85 |
} |
|
86 |
} |
|
87 |
|
|
88 |
/** |
|
89 |
* @see com.hardcode.gdbms.data.DataSource#close() |
|
90 |
*/ |
|
91 |
public void close() throws IOException { |
|
92 |
reader.close(); |
|
93 |
} |
|
94 |
|
|
95 |
/** |
|
96 |
* @see com.hardcode.gdbms.data.DataSource#getRowCount() |
|
97 |
*/ |
|
98 |
public long getRowCount() { |
|
99 |
return lineas.size() - 1; |
|
100 |
} |
|
101 |
|
|
102 |
/** |
|
103 |
* @see com.hardcode.gdbms.engine.data.FileDriver#fileAccepted(java.io.File) |
|
104 |
*/ |
|
105 |
public boolean fileAccepted(File f) { |
|
106 |
return f.getAbsolutePath().toUpperCase().endsWith("CSV"); |
|
107 |
} |
|
108 |
} |
|
0 | 109 |
trunk/libraries/libGDBMS/src/com/hardcode/gdbms/driver/dbf/DBFDriver.java | ||
---|---|---|
1 |
package com.hardcode.gdbms.driver.dbf; |
|
2 |
|
|
3 |
import java.io.File; |
|
4 |
import java.io.IOException; |
|
5 |
import java.util.Calendar; |
|
6 |
|
|
7 |
import com.hardcode.driverManager.Driver; |
|
8 |
import com.hardcode.gdbms.engine.data.DriverException; |
|
9 |
import com.hardcode.gdbms.engine.data.FileDriver; |
|
10 |
import com.hardcode.gdbms.engine.values.BooleanValue; |
|
11 |
import com.hardcode.gdbms.engine.values.DoubleValue; |
|
12 |
import com.hardcode.gdbms.engine.values.StringValue; |
|
13 |
import com.hardcode.gdbms.engine.values.Value; |
|
14 |
import com.hardcode.gdbms.engine.values.ValueFactory; |
|
15 |
|
|
16 |
|
|
17 |
/** |
|
18 |
* DOCUMENT ME! |
|
19 |
* |
|
20 |
* @author Fernando Gonz?lez Cort?s |
|
21 |
*/ |
|
22 |
public class DBFDriver implements Driver, FileDriver { |
|
23 |
private DbaseFile dbf = new DbaseFile(); |
|
24 |
private char[] fieldTypes; |
|
25 |
|
|
26 |
/** |
|
27 |
* @see com.hardcode.driverManager.Driver#getName() |
|
28 |
*/ |
|
29 |
public String getName() { |
|
30 |
return "gdbms dbf driver"; |
|
31 |
} |
|
32 |
|
|
33 |
/** |
|
34 |
* @see com.hardcode.gdbms.engine.data.GDBMSDriver#open(java.io.File) |
|
35 |
*/ |
|
36 |
public void open(File file) throws IOException { |
|
37 |
dbf.open(file); |
|
38 |
|
|
39 |
try { |
|
40 |
fieldTypes = new char[getFieldCount()]; |
|
41 |
|
|
42 |
for (int i = 0; i < fieldTypes.length; i++) { |
|
43 |
fieldTypes[i] = dbf.getFieldType(i); |
|
44 |
} |
|
45 |
} catch (DriverException e) { |
|
46 |
throw new IOException(e.getMessage()); |
|
47 |
} |
|
48 |
|
|
49 |
/* memory = new Value[getRowCount()][getFieldCount()]; |
|
50 |
for (int i = 0; i < getRowCount(); i++){ |
|
51 |
for (int j = 0; j < getFieldCount(); j++){ |
|
52 |
try { |
|
53 |
memory[i][j] = getFieldValueOff(i,j); |
|
54 |
} catch (IOException e) { |
|
55 |
e.printStackTrace(); |
|
56 |
} catch (SemanticException e) { |
|
57 |
e.printStackTrace(); |
|
58 |
} |
|
59 |
} |
|
60 |
} |
|
61 |
*/ |
|
62 |
} |
|
63 |
|
|
64 |
/** |
|
65 |
* @see com.hardcode.gdbms.engine.data.GDBMSDriver#close() |
|
66 |
*/ |
|
67 |
public void close() throws IOException { |
|
68 |
dbf.close(); |
|
69 |
} |
|
70 |
|
|
71 |
/** |
|
72 |
* @see com.hardcode.gdbms.engine.data.ReadAccess#getFieldValue(long, int) |
|
73 |
*/ |
|
74 |
public Value getFieldValue(long rowIndex, int fieldId) |
|
75 |
throws DriverException { |
|
76 |
// Field Type (C or M) |
|
77 |
char fieldType = fieldTypes[fieldId]; |
|
78 |
|
|
79 |
if (fieldType == 'L') { |
|
80 |
return new BooleanValue(dbf.getBooleanFieldValue((int) rowIndex, |
|
81 |
fieldId)); |
|
82 |
|
|
83 |
/* }else if (fieldType == 'N'){ |
|
84 |
String strValue = dbf.getStringFieldValue(rowIndex, fieldId); |
|
85 |
long value = Long.parseLong(strValue); |
|
86 |
if ((value > Integer.MIN_VALUE) && (value < Integer.MAX_VALUE)){ |
|
87 |
return new IntValue((int) value); |
|
88 |
}else{ |
|
89 |
return new LongValue(value); |
|
90 |
} |
|
91 |
*/ |
|
92 |
} else if ((fieldType == 'F') || (fieldType == 'N')) { |
|
93 |
String strValue = dbf.getStringFieldValue((int) rowIndex, fieldId) |
|
94 |
.trim(); |
|
95 |
|
|
96 |
//if (strValue.length() == 0) return null; |
|
97 |
double value = Double.parseDouble(strValue); |
|
98 |
|
|
99 |
return new DoubleValue(value); |
|
100 |
} else if (fieldType == 'C') { |
|
101 |
return new StringValue(dbf.getStringFieldValue((int) rowIndex, |
|
102 |
fieldId).trim()); |
|
103 |
} else if (fieldType == 'D') { |
|
104 |
String date = dbf.getStringFieldValue((int) rowIndex, fieldId).trim(); |
|
105 |
|
|
106 |
//if (date.length() == 0) return null; |
|
107 |
String year = date.substring(0, 4); |
|
108 |
String month = date.substring(4, 2); |
|
109 |
String day = date.substring(6, 2); |
|
110 |
Calendar c = Calendar.getInstance(); |
|
111 |
c.set(Calendar.YEAR, Integer.parseInt(year)); |
|
112 |
c.set(Calendar.MONTH, Integer.parseInt(month)); |
|
113 |
c.set(Calendar.DAY_OF_MONTH, Integer.parseInt(day)); |
|
114 |
|
|
115 |
return ValueFactory.createValue(c.getTime()); |
|
116 |
} else { |
|
117 |
throw new DriverException("Unknown field type"); |
|
118 |
} |
|
119 |
} |
|
120 |
|
|
121 |
/** |
|
122 |
* @see com.hardcode.gdbms.engine.data.ReadAccess#getFieldCount() |
|
123 |
*/ |
|
124 |
public int getFieldCount() throws DriverException { |
|
125 |
return dbf.getFieldCount(); |
|
126 |
} |
|
127 |
|
|
128 |
/** |
|
129 |
* @see com.hardcode.gdbms.engine.data.ReadAccess#getFieldName(int) |
|
130 |
*/ |
|
131 |
public String getFieldName(int fieldId) throws DriverException { |
|
132 |
return dbf.getFieldName(fieldId); |
|
133 |
} |
|
134 |
|
|
135 |
/** |
|
136 |
* @see com.hardcode.gdbms.engine.data.ReadAccess#getRowCount() |
|
137 |
*/ |
|
138 |
public long getRowCount() throws DriverException { |
|
139 |
return dbf.getRecordCount(); |
|
140 |
} |
|
141 |
|
|
142 |
/** |
|
143 |
* @see com.hardcode.gdbms.engine.data.FileDriver#fileAccepted(java.io.File) |
|
144 |
*/ |
|
145 |
public boolean fileAccepted(File f) { |
|
146 |
return f.getAbsolutePath().toUpperCase().endsWith("DBF"); |
|
147 |
} |
|
148 |
|
|
149 |
/* |
|
150 |
* @see com.hardcode.gdbms.engine.data.ReadAccess#getFieldValue(int, int) |
|
151 |
* |
|
152 |
public Value getFieldValue(int rowIndex, int fieldId) throws IOException, SemanticException { |
|
153 |
return memory[rowIndex][fieldId]; |
|
154 |
}*/ |
|
155 |
} |
|
0 | 156 |
trunk/libraries/libGDBMS/src/com/hardcode/gdbms/driver/dbf/DbaseFileHeader.java | ||
---|---|---|
1 |
/* |
|
2 |
* Created on 16-feb-2004 |
|
3 |
* |
|
4 |
* To change the template for this generated file go to |
|
5 |
* Window>Preferences>Java>Code Generation>Code and Comments |
|
6 |
*/ |
|
7 |
package com.hardcode.gdbms.driver.dbf; |
|
8 |
|
|
9 |
import java.io.IOException; |
|
10 |
import java.nio.ByteBuffer; |
|
11 |
import java.nio.ByteOrder; |
|
12 |
import java.util.Calendar; |
|
13 |
import java.util.Date; |
|
14 |
|
|
15 |
/** |
|
16 |
* Class to represent the header of a Dbase III file. Creation date: (5/15/2001 |
|
17 |
* 5:15:30 PM) |
|
18 |
*/ |
|
19 |
public class DbaseFileHeader { |
|
20 |
// Constant for the size of a record |
|
21 |
private int FILE_DESCRIPTOR_SIZE = 32; |
|
22 |
|
|
23 |
// type of the file, must be 03h |
|
24 |
private int myFileType = 0x03; |
|
25 |
|
|
26 |
// Date the file was last updated. |
|
27 |
private Date myUpdateDate = new Date(); |
|
28 |
|
|
29 |
// Number of records in the datafile |
|
30 |
private int myNumRecords = 0; |
|
31 |
|
|
32 |
// Length of the header structure |
|
33 |
private int myHeaderLength; |
|
34 |
|
|
35 |
// Length of the records |
|
36 |
private int myRecordLength; |
|
37 |
|
|
38 |
// Number of fields in the record. |
|
39 |
private int myNumFields; |
|
40 |
|
|
41 |
// collection of header records. |
|
42 |
private DbaseFieldDescriptor[] myFieldDescriptions; |
|
43 |
|
|
44 |
//TODO descomentar esto cuando tenga la clase WarningSupport |
|
45 |
// private WarningSupport warnings = new WarningSupport(); |
|
46 |
|
|
47 |
/** |
|
48 |
* DbaseFileHreader constructor comment. |
|
49 |
*/ |
|
50 |
public DbaseFileHeader() { |
|
51 |
super(); |
|
52 |
} |
|
53 |
|
|
54 |
/** |
|
55 |
* Add a column to this DbaseFileHeader. The type is one of (C N L or D) |
|
56 |
* character, number, logical(true/false), or date. The Field length is |
|
57 |
* the total length in bytes reserved for this column. The decimal count |
|
58 |
* only applies to numbers(N), and floating point values (F), and refers |
|
59 |
* to the number of characters to reserve after the decimal point. |
|
60 |
* |
|
61 |
* @param inFieldName DOCUMENT ME! |
|
62 |
* @param inFieldType DOCUMENT ME! |
|
63 |
* @param inFieldLength DOCUMENT ME! |
|
64 |
* @param inDecimalCount DOCUMENT ME! |
|
65 |
* |
|
66 |
* @throws Exception DOCUMENT ME! |
|
67 |
*/ |
|
68 |
public void addColumn(String inFieldName, char inFieldType, |
|
69 |
int inFieldLength, int inDecimalCount) throws Exception { |
|
70 |
if (inFieldLength <= 0) { |
|
71 |
inFieldLength = 1; |
|
72 |
} |
|
73 |
|
|
74 |
if (myFieldDescriptions == null) { |
|
75 |
myFieldDescriptions = new DbaseFieldDescriptor[0]; |
|
76 |
} |
|
77 |
|
|
78 |
int tempLength = 1; // the length is used for the offset, and there is a * for deleted as the first byte |
|
79 |
DbaseFieldDescriptor[] tempFieldDescriptors = new DbaseFieldDescriptor[myFieldDescriptions.length + |
|
80 |
1]; |
|
81 |
|
|
82 |
for (int i = 0; i < myFieldDescriptions.length; i++) { |
|
83 |
myFieldDescriptions[i].myFieldDataAddress = tempLength; |
|
84 |
tempLength = tempLength + myFieldDescriptions[i].myFieldLength; |
|
85 |
tempFieldDescriptors[i] = myFieldDescriptions[i]; |
|
86 |
} |
|
87 |
|
|
88 |
tempFieldDescriptors[myFieldDescriptions.length] = new DbaseFieldDescriptor(); |
|
89 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldLength = inFieldLength; |
|
90 |
tempFieldDescriptors[myFieldDescriptions.length].myDecimalCount = inDecimalCount; |
|
91 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldDataAddress = tempLength; |
|
92 |
|
|
93 |
// set the field name |
|
94 |
String tempFieldName = inFieldName; |
|
95 |
|
|
96 |
if (tempFieldName == null) { |
|
97 |
tempFieldName = "NoName"; |
|
98 |
} |
|
99 |
|
|
100 |
if (tempFieldName.length() > 11) { |
|
101 |
tempFieldName = tempFieldName.substring(0, 11); |
|
102 |
warn("FieldName " + inFieldName + |
|
103 |
" is longer than 11 characters, truncating to " + |
|
104 |
tempFieldName); |
|
105 |
} |
|
106 |
|
|
107 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldName = tempFieldName; |
|
108 |
|
|
109 |
// the field type |
|
110 |
if ((inFieldType == 'C') || (inFieldType == 'c')) { |
|
111 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldType = 'C'; |
|
112 |
|
|
113 |
if (inFieldLength > 254) { |
|
114 |
warn("Field Length for " + inFieldName + " set to " + |
|
115 |
inFieldLength + |
|
116 |
" Which is longer than 254, not consistent with dbase III"); |
|
117 |
} |
|
118 |
} else if ((inFieldType == 'S') || (inFieldType == 's')) { |
|
119 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldType = 'C'; |
|
120 |
warn("Field type for " + inFieldName + |
|
121 |
" set to S which is flat out wrong people!, I am setting this to C, in the hopes you meant character."); |
|
122 |
|
|
123 |
if (inFieldLength > 254) { |
|
124 |
warn("Field Length for " + inFieldName + " set to " + |
|
125 |
inFieldLength + |
|
126 |
" Which is longer than 254, not consistent with dbase III"); |
|
127 |
} |
|
128 |
|
|
129 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldLength = 8; |
|
130 |
} else if ((inFieldType == 'D') || (inFieldType == 'd')) { |
|
131 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldType = 'D'; |
|
132 |
|
|
133 |
if (inFieldLength != 8) { |
|
134 |
warn("Field Length for " + inFieldName + " set to " + |
|
135 |
inFieldLength + " Setting to 8 digets YYYYMMDD"); |
|
136 |
} |
|
137 |
|
|
138 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldLength = 8; |
|
139 |
} else if ((inFieldType == 'F') || (inFieldType == 'f')) { |
|
140 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldType = 'F'; |
|
141 |
|
|
142 |
if (inFieldLength > 20) { |
|
143 |
warn("Field Length for " + inFieldName + " set to " + |
|
144 |
inFieldLength + |
|
145 |
" Preserving length, but should be set to Max of 20 not valid for dbase IV, and UP specification, not present in dbaseIII."); |
|
146 |
} |
|
147 |
} else if ((inFieldType == 'N') || (inFieldType == 'n')) { |
|
148 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldType = 'N'; |
|
149 |
|
|
150 |
if (inFieldLength > 18) { |
|
151 |
warn("Field Length for " + inFieldName + " set to " + |
|
152 |
inFieldLength + |
|
153 |
" Preserving length, but should be set to Max of 18 for dbase III specification."); |
|
154 |
} |
|
155 |
|
|
156 |
if (inDecimalCount < 0) { |
|
157 |
warn("Field Decimal Position for " + inFieldName + " set to " + |
|
158 |
inDecimalCount + |
|
159 |
" Setting to 0 no decimal data will be saved."); |
|
160 |
tempFieldDescriptors[myFieldDescriptions.length].myDecimalCount = 0; |
|
161 |
} |
|
162 |
|
|
163 |
if (inDecimalCount > (inFieldLength - 1)) { |
|
164 |
warn("Field Decimal Position for " + inFieldName + " set to " + |
|
165 |
inDecimalCount + " Setting to " + (inFieldLength - 1) + |
|
166 |
" no non decimal data will be saved."); |
|
167 |
tempFieldDescriptors[myFieldDescriptions.length].myDecimalCount = inFieldLength - |
|
168 |
1; |
|
169 |
} |
|
170 |
} else if ((inFieldType == 'L') || (inFieldType == 'l')) { |
|
171 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldType = 'L'; |
|
172 |
|
|
173 |
if (inFieldLength != 1) { |
|
174 |
warn("Field Length for " + inFieldName + " set to " + |
|
175 |
inFieldLength + |
|
176 |
" Setting to length of 1 for logical fields."); |
|
177 |
} |
|
178 |
|
|
179 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldLength = 1; |
|
180 |
} else { |
|
181 |
throw new Exception("Undefined field type " + inFieldType + |
|
182 |
" For column " + inFieldName); |
|
183 |
} |
|
184 |
|
|
185 |
// the length of a record |
|
186 |
tempLength = tempLength + |
|
187 |
tempFieldDescriptors[myFieldDescriptions.length].myFieldLength; |
|
188 |
|
|
189 |
// set the new fields. |
|
190 |
myFieldDescriptions = tempFieldDescriptors; |
|
191 |
myHeaderLength = 33 + (32 * myFieldDescriptions.length); |
|
192 |
myNumFields = myFieldDescriptions.length; |
|
193 |
myRecordLength = tempLength; |
|
194 |
} |
|
195 |
|
|
196 |
/** |
|
197 |
* Remove a column from this DbaseFileHeader. |
|
198 |
* |
|
199 |
* @param inFieldName DOCUMENT ME! |
|
200 |
* |
|
201 |
* @return index of the removed column, -1 if no found |
|
202 |
*/ |
|
203 |
public int removeColumn(String inFieldName) { |
|
204 |
int retCol = -1; |
|
205 |
int tempLength = 1; |
|
206 |
DbaseFieldDescriptor[] tempFieldDescriptors = new DbaseFieldDescriptor[myFieldDescriptions.length - |
|
207 |
1]; |
|
208 |
|
|
209 |
for (int i = 0, j = 0; i < myFieldDescriptions.length; i++) { |
|
210 |
if (!inFieldName.equalsIgnoreCase( |
|
211 |
myFieldDescriptions[i].myFieldName.trim())) { |
|
212 |
// if this is the last field and we still haven't found the |
|
213 |
// named field |
|
214 |
if ((i == j) && (i == (myFieldDescriptions.length - 1))) { |
|
215 |
System.err.println("Could not find a field named '" + |
|
216 |
inFieldName + "' for removal"); |
|
217 |
|
|
218 |
return retCol; |
|
219 |
} |
|
220 |
|
|
221 |
tempFieldDescriptors[j] = myFieldDescriptions[i]; |
|
222 |
tempFieldDescriptors[j].myFieldDataAddress = tempLength; |
|
223 |
tempLength += tempFieldDescriptors[j].myFieldLength; |
|
224 |
|
|
225 |
// only increment j on non-matching fields |
|
226 |
j++; |
|
227 |
} else { |
|
228 |
retCol = i; |
|
229 |
} |
|
230 |
} |
|
231 |
|
|
232 |
// set the new fields. |
|
233 |
myFieldDescriptions = tempFieldDescriptors; |
|
234 |
myHeaderLength = 33 + (32 * myFieldDescriptions.length); |
|
235 |
myNumFields = myFieldDescriptions.length; |
|
236 |
myRecordLength = tempLength; |
|
237 |
|
|
238 |
return retCol; |
|
239 |
} |
|
240 |
|
|
241 |
/** |
|
242 |
* DOCUMENT ME! |
|
243 |
* |
|
244 |
* @param inWarn DOCUMENT ME! |
|
245 |
*/ |
|
246 |
private void warn(String inWarn) { |
|
247 |
//TODO Descomentar esto cuando tenga la clase warning support |
|
248 |
// warnings.warn(inWarn); |
|
249 |
} |
|
250 |
|
|
251 |
/** |
|
252 |
* Return the Field Descriptor for the given field. |
|
253 |
* |
|
254 |
* @param inIndex DOCUMENT ME! |
|
255 |
* |
|
256 |
* @return DOCUMENT ME! |
|
257 |
*/ |
|
258 |
public DbaseFieldDescriptor getFieldDescription(int inIndex) { |
|
259 |
return myFieldDescriptions[inIndex]; |
|
260 |
} |
|
261 |
|
|
262 |
// Retrieve the length of the field at the given index |
|
263 |
public int getFieldLength(int inIndex) { |
|
264 |
return myFieldDescriptions[inIndex].myFieldLength; |
|
265 |
} |
|
266 |
|
|
267 |
// Retrieve the location of the decimal point within the field. |
|
268 |
public int getFieldDecimalCount(int inIndex) { |
|
269 |
return myFieldDescriptions[inIndex].myDecimalCount; |
|
270 |
} |
|
271 |
|
|
272 |
// Retrieve the Name of the field at the given index |
|
273 |
public String getFieldName(int inIndex) { |
|
274 |
return myFieldDescriptions[inIndex].myFieldName; |
|
275 |
} |
|
276 |
|
|
277 |
// Retrieve the type of field at the given index |
|
278 |
public char getFieldType(int inIndex) { |
|
279 |
return myFieldDescriptions[inIndex].myFieldType; |
|
280 |
} |
|
281 |
|
|
282 |
/** |
|
283 |
* Return the date this file was last updated. |
|
284 |
* |
|
285 |
* @return DOCUMENT ME! |
|
286 |
*/ |
|
287 |
public Date getLastUpdateDate() { |
|
288 |
return myUpdateDate; |
|
289 |
} |
|
290 |
|
|
291 |
/** |
|
292 |
* Return the number of fields in the records. |
|
293 |
* |
|
294 |
* @return DOCUMENT ME! |
|
295 |
*/ |
|
296 |
public int getNumFields() { |
|
297 |
return myNumFields; |
|
298 |
} |
|
299 |
|
|
300 |
/** |
|
301 |
* Return the number of records in the file |
|
302 |
* |
|
303 |
* @return DOCUMENT ME! |
|
304 |
*/ |
|
305 |
public int getNumRecords() { |
|
306 |
return myNumRecords; |
|
307 |
} |
|
308 |
|
|
309 |
/** |
|
310 |
* Return the length of the records in bytes. |
|
311 |
* |
|
312 |
* @return DOCUMENT ME! |
|
313 |
*/ |
|
314 |
public int getRecordLength() { |
|
315 |
return myRecordLength; |
|
316 |
} |
|
317 |
|
|
318 |
/** |
|
319 |
* Return the length of the header |
|
320 |
* |
|
321 |
* @return DOCUMENT ME! |
|
322 |
*/ |
|
323 |
public int getHeaderLength() { |
|
324 |
return myHeaderLength; |
|
325 |
} |
|
326 |
|
|
327 |
/** |
|
328 |
* Read the header data from the DBF file. |
|
329 |
* |
|
330 |
* @param in DOCUMENT ME! |
|
331 |
* |
|
332 |
* @throws Exception DOCUMENT ME! |
|
333 |
*/ |
|
334 |
public void readHeader(ByteBuffer in) throws IOException { |
|
335 |
// type of file. |
|
336 |
myFileType = in.get(); |
|
337 |
|
|
338 |
if (myFileType != 0x03) { |
|
339 |
throw new IOException("Unsupported DBF file Type " + |
|
340 |
Integer.toHexString(myFileType)); |
|
341 |
} |
|
342 |
|
|
343 |
// parse the update date information. |
|
344 |
int tempUpdateYear = (int) in.get(); |
|
345 |
int tempUpdateMonth = (int) in.get(); |
|
346 |
int tempUpdateDay = (int) in.get(); |
|
347 |
tempUpdateYear = tempUpdateYear + 1900; |
|
348 |
|
|
349 |
Calendar c = Calendar.getInstance(); |
|
350 |
c.set(Calendar.YEAR, tempUpdateYear); |
|
351 |
c.set(Calendar.MONTH, tempUpdateMonth - 1); |
|
352 |
c.set(Calendar.DATE, tempUpdateDay); |
|
353 |
myUpdateDate = c.getTime(); |
|
354 |
|
|
355 |
// read the number of records. |
|
356 |
in.order(ByteOrder.LITTLE_ENDIAN); |
|
357 |
myNumRecords = in.getInt(); |
|
358 |
|
|
359 |
// read the length of the header structure. |
|
360 |
myHeaderLength = in.getShort(); |
|
361 |
|
|
362 |
// read the length of a record |
|
363 |
myRecordLength = in.getShort(); |
|
364 |
|
|
365 |
in.order(ByteOrder.BIG_ENDIAN); |
|
366 |
|
|
367 |
// skip the reserved bytes in the header. |
|
368 |
in.position(in.position()+20); |
|
369 |
|
|
370 |
// calculate the number of Fields in the header |
|
371 |
myNumFields = (myHeaderLength - FILE_DESCRIPTOR_SIZE - 1) / FILE_DESCRIPTOR_SIZE; |
|
372 |
|
|
373 |
// read all of the header records |
|
374 |
myFieldDescriptions = new DbaseFieldDescriptor[myNumFields]; |
|
375 |
|
|
376 |
for (int i = 0; i < myNumFields; i++) { |
|
377 |
myFieldDescriptions[i] = new DbaseFieldDescriptor(); |
|
378 |
|
|
379 |
// read the field name |
|
380 |
byte[] buffer = new byte[11]; |
|
381 |
in.get(buffer); |
|
382 |
myFieldDescriptions[i].myFieldName = new String(buffer); |
|
383 |
|
|
384 |
// read the field type |
|
385 |
myFieldDescriptions[i].myFieldType = (char) in.get(); |
|
386 |
|
|
387 |
// read the field data address, offset from the start of the record. |
|
388 |
myFieldDescriptions[i].myFieldDataAddress = in.getInt(); |
|
389 |
|
|
390 |
// read the field length in bytes |
|
391 |
int tempLength = (int) in.get(); |
|
392 |
|
|
393 |
if (tempLength < 0) { |
|
394 |
tempLength = tempLength + 256; |
|
395 |
} |
|
396 |
|
|
397 |
myFieldDescriptions[i].myFieldLength = tempLength; |
|
398 |
|
|
399 |
// read the field decimal count in bytes |
|
400 |
myFieldDescriptions[i].myDecimalCount = (int) in.get(); |
|
401 |
|
|
402 |
// read the reserved bytes. |
|
403 |
in.position(in.position()+14); |
|
404 |
} |
|
405 |
|
|
406 |
// Last byte is a marker for the end of the field definitions. |
|
407 |
in.get(); |
|
408 |
} |
|
409 |
|
|
410 |
/** |
|
411 |
* Set the number of records in the file |
|
412 |
* |
|
413 |
* @param inNumRecords DOCUMENT ME! |
|
414 |
*/ |
|
415 |
protected void setNumRecords(int inNumRecords) { |
|
416 |
myNumRecords = inNumRecords; |
|
417 |
} |
|
418 |
|
|
419 |
/* |
|
420 |
* Write the header data to the DBF file. |
|
421 |
* |
|
422 |
* @param out DOCUMENT ME! |
|
423 |
* |
|
424 |
* @throws Exception DOCUMENT ME! |
|
425 |
* |
|
426 |
public void writeHeader(LEDataOutputStream out) throws Exception { |
|
427 |
// write the output file type. |
|
428 |
out.writeByte(myFileType); |
|
429 |
|
|
430 |
// write the date stuff |
|
431 |
Calendar c = Calendar.getInstance(); |
|
432 |
c.setTime(new Date()); |
|
433 |
out.writeByte(c.get(Calendar.YEAR) - 1900); |
|
434 |
out.writeByte(c.get(Calendar.MONTH) + 1); |
|
435 |
out.writeByte(c.get(Calendar.DAY_OF_MONTH)); |
|
436 |
|
|
437 |
// write the number of records in the datafile. |
|
438 |
out.writeInt(myNumRecords); |
|
439 |
|
|
440 |
// write the length of the header structure. |
|
441 |
out.writeShort(myHeaderLength); |
|
442 |
|
|
443 |
// write the length of a record |
|
444 |
out.writeShort(myRecordLength); |
|
445 |
|
|
446 |
// write the reserved bytes in the header |
|
447 |
for (int i = 0; i < 20; i++) |
|
448 |
out.writeByte(0); |
|
449 |
|
|
450 |
// write all of the header records |
|
451 |
int tempOffset = 0; |
|
452 |
|
|
453 |
for (int i = 0; i < myFieldDescriptions.length; i++) { |
|
454 |
// write the field name |
|
455 |
for (int j = 0; j < 11; j++) { |
|
456 |
if (myFieldDescriptions[i].myFieldName.length() > j) { |
|
457 |
out.writeByte((int) myFieldDescriptions[i].myFieldName.charAt( |
|
458 |
j)); |
|
459 |
} else { |
|
460 |
out.writeByte(0); |
|
461 |
} |
|
462 |
} |
|
463 |
|
|
464 |
// write the field type |
|
465 |
out.writeByte(myFieldDescriptions[i].myFieldType); |
|
466 |
|
|
467 |
// write the field data address, offset from the start of the record. |
|
468 |
out.writeInt(tempOffset); |
|
469 |
tempOffset += myFieldDescriptions[i].myFieldLength; |
|
470 |
|
|
471 |
// write the length of the field. |
|
472 |
out.writeByte(myFieldDescriptions[i].myFieldLength); |
|
473 |
|
|
474 |
// write the decimal count. |
|
475 |
out.writeByte(myFieldDescriptions[i].myDecimalCount); |
|
476 |
|
|
477 |
// write the reserved bytes. |
|
478 |
for (int j = 0; j < 14; j++) |
|
479 |
out.writeByte(0); |
|
480 |
} |
|
481 |
|
|
482 |
// write the end of the field definitions marker |
|
483 |
out.writeByte(0x0D); |
|
484 |
} |
|
485 |
*/ |
|
486 |
/** |
|
487 |
* Class for holding the information assicated with a record. |
|
488 |
*/ |
|
489 |
class DbaseFieldDescriptor { |
|
490 |
// Field Name |
|
491 |
String myFieldName; |
|
492 |
|
|
493 |
// Field Type (C N L D F or M) |
|
494 |
char myFieldType; |
|
495 |
|
|
496 |
// Field Data Address offset from the start of the record. |
|
497 |
int myFieldDataAddress; |
|
498 |
|
|
499 |
// Length of the data in bytes |
|
500 |
int myFieldLength; |
|
501 |
|
|
502 |
// Field decimal count in Binary, indicating where the decimal is |
|
503 |
int myDecimalCount; |
|
504 |
} |
|
505 |
} |
|
0 | 506 |
trunk/libraries/libGDBMS/src/com/hardcode/gdbms/driver/dbf/DbaseFile.java | ||
---|---|---|
1 |
/* |
|
2 |
* Created on 16-feb-2004 |
|
3 |
* |
|
4 |
* To change the template for this generated file go to |
|
5 |
* Window>Preferences>Java>Code Generation>Code and Comments |
|
6 |
*/ |
|
7 |
package com.hardcode.gdbms.driver.dbf; |
|
8 |
|
|
9 |
/** |
|
10 |
*/ |
|
11 |
import java.io.File; |
|
12 |
import java.io.FileInputStream; |
|
13 |
import java.io.IOException; |
Also available in: Unified diff