public static void main(String argv[])
{
+ if(argv.length<3) {
+ System.err.println("java JDBC_Test jdbc-url user password [debug]");
+ System.exit(1);
+ }
+
String url = new String(argv[0]);
String usr = new String(argv[1]);
String pwd = new String(argv[2]);
Connection db;
Statement s;
- ResultSet rs;
// This line outputs debug information to stderr. To enable this, simply
- // remove the //
- DriverManager.setLogStream(System.err);
+ // add an extra parameter to the command line
+ if(argv.length>3)
+ DriverManager.setLogStream(System.err);
// Load the driver
try {
// Lets do a few things -- it doesn't do everything, but
// it tests out basic functionality
try {
+ //----------------------------------------
+ // Connect to database
System.out.println("Connecting to Database URL = " + url);
db = DriverManager.getConnection(url, usr, pwd);
System.out.println("Connected...Now creating a statement");
s = db.createStatement();
- // test Date & Warnings
+ //----------------------------------------
+ // test DateStyle & Warnings
System.out.println("Ok... now set European date style");
s.executeUpdate("set datestyle='european'");
}
db.clearWarnings();
+ //----------------------------------------
+ // Creating a table
System.out.println("Ok...now we will create a table");
s.executeUpdate("create table test (a int2, b int2,c timestamp,d date)");
+ //----------------------------------------
+ // Simple inserts
System.out.println("Now we will insert some columns");
s.executeUpdate("insert into test values (1, 1,'now','now')");
s.executeUpdate("insert into test values (2, 1,'now','01-11-1997')"); // As we are in european, this should mean 1 November 1997
s.executeUpdate("insert into test values (3, 1,'now','11-01-1997')"); // As we are in european, this should mean 11 January 1997
System.out.println("Inserted some data");
+ //----------------------------------------
+ // Now a select (see seperate method at end)
System.out.println("Now lets try a select");
- rs = s.executeQuery("select a, b,c,d from test");
- System.out.println("Back from the select...the following are results");
- System.out.println("row a b c d 'd as string'");
- int i = 0;
- while (rs.next())
- {
- int a = rs.getInt("a"); // Example of retriving by column name
- int b = rs.getInt("b");
- Timestamp c = rs.getTimestamp(3); // Example of by column number
- java.sql.Date d = rs.getDate(4); // Note, java.sql.Date here
- System.out.println("row " + i + " " + a + " " + b + " " + c + " " + d + " '"+rs.getString(4)+"'");
- i++;
- }
+ select(s,"");
- // This is a bug at the moment... when you use set datestyle
- // it must be followed by show datestyle
- System.out.println("Now switch to US date format");
- s.executeUpdate("set datestyle='US'");
- s.executeUpdate("show datestyle");
-
- System.out.println("Now lets try a select");
- rs = s.executeQuery("select a, b,c,d from test");
- System.out.println("Back from the select...the following are results");
- //int i = 0;
- System.out.println("row a b c d 'd as string'");
- while (rs.next())
- {
- int a = rs.getInt("a"); // Example of retriving by column name
- int b = rs.getInt("b");
- Timestamp c = rs.getTimestamp(3); // Example of by column number
- java.sql.Date d = rs.getDate(4); // Note, java.sql.Date here
- System.out.println("row " + i + " " + a + " " + b + " " + c + " " + d + " '"+rs.getString(4)+"'");
- i++;
- }
+ //----------------------------------------
+ // Now run some tests
+ runTests(db,s);
+ //----------------------------------------
+ // Dropping a table
System.out.println("Ok...dropping the table");
s.executeUpdate("drop table test");
+ //----------------------------------------
+ // Closing the connection
System.out.println("Now closing the connection");
s.close();
db.close();
+
+ //----------------------------------------
} catch (SQLException e) {
System.out.println("Exception: " + e.toString());
}
}
+
+ /**
+ * This performs some tests - not really part of an example, hence
+ * they are in a seperate method.
+ */
+ public static void runTests(Connection db, Statement s) throws SQLException
+ {
+ //----------------------------------------
+ // This is a bug at the moment... when you use set datestyle
+ // it must be followed by show datestyle
+ System.out.println("Now switch to US date format");
+ s.executeUpdate("set datestyle='US'");
+ s.executeUpdate("show datestyle");
+
+ System.out.println("Now lets try a select");
+ select(s,"");
+
+ //----------------------------------------
+ // Inserting dates using PreparedStatement
+ System.out.println("Ok, now a test using PreparedStatement");
+ Date dt = new Date(97,11,1);
+ PreparedStatement ps = db.prepareStatement("insert into test values (?,?,'now',?)");
+
+ // first insert in US style
+ s.executeUpdate("set datestyle='US'");
+ s.executeUpdate("show datestyle");
+ ps.setInt(1,8);
+ ps.setInt(2,8);
+ ps.setDate(3,dt);
+ ps.executeUpdate();
+
+ // second insert in European style
+ s.executeUpdate("set datestyle='european'");
+ s.executeUpdate("show datestyle");
+ ps.setInt(1,9);
+ ps.setInt(2,9);
+ ps.setDate(3,dt);
+ ps.executeUpdate();
+
+ System.out.println("Now run the select again - first as European");
+ select(s,"where a>7");
+
+ s.executeUpdate("set datestyle='US'");
+ s.executeUpdate("show datestyle");
+ System.out.println("Then as US");
+ select(s,"where a>7");
+ }
+
+ /**
+ * This performs a select. It's seperate because the tests use it in
+ * multiple places.
+ * @param s Statement to run under
+ * @throws SQLException
+ */
+ public static void select(Statement s,String sql) throws SQLException
+ {
+ sql="select a, b,c,d from test "+sql;
+ System.out.println("\nQuery: "+sql);
+ ResultSet rs = s.executeQuery(sql);
+ System.out.println("row a b c d 'd as string'");
+ System.out.println("-------------------------------------------------------------------------------");
+ int i = 0;
+ while(rs.next()) {
+ int a = rs.getInt("a"); // Example of retriving by column name
+ int b = rs.getInt("b");
+ Timestamp c = rs.getTimestamp(3); // Example of by column number
+ java.sql.Date d = rs.getDate(4); // Note, java.sql.Date here
+ System.out.println("row " + i + " " + a + " " + b + " " + c + " " + d + " '"+rs.getString(4)+"'");
+ i++;
+ }
+ rs.close();
+ }
+
}
private String PG_PASSWORD;
private String PG_DATABASE;
private boolean PG_STATUS;
- private boolean PG_AUTH; // true, then password auth used
public boolean CONNECTION_OK = true;
public boolean CONNECTION_BAD = false;
+ private static final int STARTUP_LEN = 288; // Length of a startup packet
+
+ // These are defined in src/include/libpq/pqcomm.h
private int STARTUP_CODE = STARTUP_USER;
private static final int STARTUP_USER = 7; // User auth
+ private static final int STARTUP_KRB4 = 10; // Kerberos 4 (unused)
+ private static final int STARTUP_KRB5 = 11; // Kerberos 5 (unused)
+ private static final int STARTUP_HBA = 12; // Host Based
+ private static final int STARTUP_NONE = 13; // Unauthenticated (unused)
private static final int STARTUP_PASS = 14; // Password auth
- private static final int STARTUP_LEN = 288; // Length of a startup packet
private boolean autoCommit = true;
private boolean readOnly = false;
PG_HOST = new String(host);
PG_STATUS = CONNECTION_BAD;
- if(info.getProperty("auth") != null) {
- PG_AUTH=true;
+ // This handles the auth property. Any value begining with p enables
+ // password authentication, while anything begining with i enables
+ // ident (RFC 1413) authentication. Any other values default to trust.
+ //
+ // Also, the postgresql.auth system property can be used to change the
+ // local default, if the auth property is not present.
+ //
+ String auth = info.getProperty("auth",System.getProperty("postgresql.auth","trust")).toLowerCase();
+ if(auth.startsWith("p")) {
+ // Password authentication
STARTUP_CODE=STARTUP_PASS;
+ } else if(auth.startsWith("i")) {
+ // Ident (RFC 1413) authentication
+ STARTUP_CODE=STARTUP_HBA;
} else {
+ // Anything else defaults to trust authentication
STARTUP_CODE=STARTUP_USER;
}
pg_stream.Send(PG_USER.getBytes(), len);
// Send the password packet if required
- if(PG_AUTH) {
+ if(STARTUP_CODE == STARTUP_PASS) {
len=STARTUP_LEN;
pg_stream.SendInteger(len, 4); len -= 4;
pg_stream.SendInteger(STARTUP_PASS, 4); len -= 4;
// These should be in sync with the backend that the driver was
// distributed with
static final int MAJORVERSION = 6;
- static final int MINORVERSION = 2;
+ static final int MINORVERSION = 3;
static
{
*/
public DriverPropertyInfo[] getPropertyInfo(String url, Properties info) throws SQLException
{
- return null; // We don't need anything except
- // the username, which is a default
+ Properties p = parseURL(url,info);
+
+ // naughty, but its best for speed. If anyone adds a property here, then
+ // this _MUST_ be increased to accomodate them.
+ DriverPropertyInfo d,dpi[] = new DriverPropertyInfo[1];
+ int i=0;
+
+ dpi[i++] = d = new DriverPropertyInfo("auth",p.getProperty("auth","default"));
+ d.description = "determines if password authentication is used";
+ d.choices = new String[4];
+ d.choices[0]="default"; // Get value from postgresql.auth property, defaults to trust
+ d.choices[1]="trust"; // No password authentication
+ d.choices[2]="password"; // Password authentication
+ d.choices[3]="ident"; // Ident (RFC 1413) protocol
+
+ return dpi;
}
/**
/**
* Constructs a new DriverURL, splitting the specified URL into its
* component parts
+ * @param url JDBC URL to parse
+ * @param defaults Default properties
+ * @return Properties with elements added from the url
+ * @throws SQLException
*/
Properties parseURL(String url,Properties defaults) throws SQLException
{
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