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1 package com.quadcap.jdbc;
2
3
7
8 import java.io.File  ;
9
10 import java.util.HashMap ;
11 import java.util.Map ;
12 import java.util.Properties ;
13
14 import java.sql.Connection ;
15 import java.sql.Driver ;
16 import java.sql.DriverManager ;
17 import java.sql.DriverPropertyInfo ;
18 import java.sql.SQLException ;
19
20 import com.quadcap.sql.Version;
21
22 import com.quadcap.io.dir.ClassLoader;
23 import com.quadcap.io.dir.Directory;
24
25 import com.quadcap.util.Util;
26
27
45 public class MultiDriver implements Driver {
46 static Map versions = new HashMap ();
47
48 static {
49 try {
50 DriverManager.registerDriver(new MultiDriver());
51 } catch (Throwable t) {}
52 }
53
54
57 public MultiDriver() {}
58
59
63 public Connection connect(String url, Properties info)
64 throws SQLException
65 {
66 try {
67 Properties p = new Properties ();
68 p.putAll(info);
69 int idx = url.indexOf(';');
70 if (idx >= 0) {
71 p.putAll(Util.parsePropsString(url.substring(idx+1)));
72 }
73 String qed = p.getProperty("qed");
74 if (qed == null) {
75 throw new SQLException ("MultiDriver requires 'qed' property");
76 }
77 Driver qdriver = (Driver )versions.get(qed);
78 if (qdriver == null) {
79 ClassLoader cl;
80 cl = new ClassLoader (Directory.getDirectory(new File (qed)));
81 Class qdclass = cl.loadClass("com.quadcap.jdbc.JdbcDriver");
82 qdriver = (Driver )(qdclass.newInstance());
83 versions.put(qed, qdriver);
84 }
85 String xurl = "jdbc:qed:" + url.substring("jdbc:mqed:".length());
86 return qdriver.connect(xurl, info);
87 } catch (SQLException ex) {
88 throw ex;
89 } catch (Throwable t) {
90 throw new SQLException (t.toString());
91 }
92 }
93
94 public boolean acceptsURL(String url) throws SQLException {
95 return url.startsWith("jdbc:mqed:");
96 }
97
98 public DriverPropertyInfo [] getPropertyInfo(String url, Properties info)
99 throws SQLException
100 {
101 return null;
102 }
103
104 public int getMajorVersion() {
105 return Version.majorVersion;
106 }
107
108 public int getMinorVersion() {
109 return Version.minorVersion;
110 }
111
112 public boolean jdbcCompliant() {
113 return true;
114 }
115 }
116
117 |
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