New stuff from Peter Mount for jdbc.
This commit is contained in:
parent
c37adac74e
commit
35a945f2b5
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@ -123,7 +123,7 @@ public class psql
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if(rs.wasNull())
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System.out.print("{null}"+(i<cols?"\t":"\n"));
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else
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System.out.print(rs.getObject(i).toString()+(i<cols?"\t":"\n"));
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System.out.print(o.toString()+(i<cols?"\t":"\n"));
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}
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}
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@ -34,6 +34,9 @@ public class Connection implements java.sql.Connection
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// This is set by postgresql.Statement.setMaxRows()
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protected int maxrows = 0; // maximum no. of rows; 0 = unlimited
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// This is a cache of the DatabaseMetaData instance for this connection
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protected DatabaseMetaData metadata;
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private String PG_HOST;
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private int PG_PORT;
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private String PG_USER;
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@ -44,17 +47,6 @@ public class Connection implements java.sql.Connection
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public boolean CONNECTION_OK = true;
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public boolean CONNECTION_BAD = false;
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//private static final int STARTUP_LEN = 288; // Length of a startup packet
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// These are defined in src/include/libpq/pqcomm.h
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//private int STARTUP_CODE = STARTUP_USER;
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//private static final int STARTUP_USER = 7; // User auth
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//private static final int STARTUP_KRB4 = 10; // Kerberos 4 (unused)
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//private static final int STARTUP_KRB5 = 11; // Kerberos 5 (unused)
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//private static final int STARTUP_HBA = 12; // Host Based
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//private static final int STARTUP_NONE = 13; // Unauthenticated (unused)
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//private static final int STARTUP_PASS = 14; // Password auth
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private boolean autoCommit = true;
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private boolean readOnly = false;
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@ -88,12 +80,6 @@ public class Connection implements java.sql.Connection
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// be across all connections, which could be to different backends.
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protected Hashtable fieldCache = new Hashtable();
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// This is used by Field to cache oid -> names.
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// It's here, because it's shared across this connection only.
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// Hence it cannot be static within the Field class, because it would then
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// be across all connections, which could be to different backends.
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protected Hashtable fieldCache = new Hashtable();
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/**
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* This is the current date style of the backend
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*/
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@ -150,8 +136,6 @@ public class Connection implements java.sql.Connection
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*/
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public Connection(String host, int port, Properties info, String database, String url, Driver d) throws SQLException
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{
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//int len = STARTUP_LEN; // Length of a startup packet
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// Throw an exception if the user or password properties are missing
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// This occasionally occurs when the client uses the properties version
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// of getConnection(), and is a common question on the email lists
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@ -169,30 +153,15 @@ public class Connection implements java.sql.Connection
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PG_HOST = new String(host);
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PG_STATUS = CONNECTION_BAD;
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// Pre 6.3 code
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// This handles the auth property. Any value begining with p enables
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// password authentication, while anything begining with i enables
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// ident (RFC 1413) authentication. Any other values default to trust.
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//
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// Also, the postgresql.auth system property can be used to change the
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// local default, if the auth property is not present.
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//
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//String auth = info.getProperty("auth",System.getProperty("postgresql.auth","trust")).toLowerCase();
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//if(auth.startsWith("p")) {
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//// Password authentication
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//STARTUP_CODE=STARTUP_PASS;
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//} else if(auth.startsWith("i")) {
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//// Ident (RFC 1413) authentication
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//STARTUP_CODE=STARTUP_HBA;
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//} else {
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//// Anything else defaults to trust authentication
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//STARTUP_CODE=STARTUP_USER;
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//}
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// Now make the initial connection
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try
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{
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pg_stream = new PG_Stream(host, port);
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} catch (ConnectException cex) {
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// Added by Peter Mount <peter@retep.org.uk>
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// ConnectException is thrown when the connection cannot be made.
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// we trap this an return a more meaningful message for the end user
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throw new SQLException ("Connection refused. Check that the hostname and port is correct, and that the postmaster is running with the -i flag, which enables TCP/IP networking.");
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} catch (IOException e) {
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throw new SQLException ("Connection failed: " + e.toString());
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}
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@ -200,30 +169,17 @@ public class Connection implements java.sql.Connection
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// Now we need to construct and send a startup packet
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try
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{
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// Pre 6.3 code
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//pg_stream.SendInteger(len, 4); len -= 4;
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//pg_stream.SendInteger(STARTUP_CODE, 4); len -= 4;
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//pg_stream.Send(database.getBytes(), 64); len -= 64;
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//pg_stream.Send(PG_USER.getBytes(), len);
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//
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//// Send the password packet if required
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//if(STARTUP_CODE == STARTUP_PASS) {
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//len=STARTUP_LEN;
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//pg_stream.SendInteger(len, 4); len -= 4;
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//pg_stream.SendInteger(STARTUP_PASS, 4); len -= 4;
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//pg_stream.Send(PG_USER.getBytes(), PG_USER.length());
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//len-=PG_USER.length();
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//pg_stream.SendInteger(0,1); len -= 1;
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//pg_stream.Send(PG_PASSWORD.getBytes(), len);
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//}
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// Ver 6.3 code
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pg_stream.SendInteger(4+4+SM_DATABASE+SM_USER+SM_OPTIONS+SM_UNUSED+SM_TTY,4);
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pg_stream.SendInteger(PG_PROTOCOL_LATEST_MAJOR,2);
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pg_stream.SendInteger(PG_PROTOCOL_LATEST_MINOR,2);
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pg_stream.Send(database.getBytes(),SM_DATABASE);
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// This last send includes the unused fields
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pg_stream.Send(PG_USER.getBytes(),SM_USER+SM_OPTIONS+SM_UNUSED+SM_TTY);
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// The last send includes the unused fields
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// now flush the startup packets to the backend
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pg_stream.flush();
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// Now get the response from the backend, either an error message
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// or an authentication request
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@ -233,6 +189,12 @@ public class Connection implements java.sql.Connection
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switch(beresp)
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{
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case 'E':
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// An error occured, so pass the error message to the
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// user.
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//
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// The most common one to be thrown here is:
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// "User authentication failed"
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//
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throw new SQLException(pg_stream.ReceiveString(4096));
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case 'R':
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@ -267,7 +229,7 @@ public class Connection implements java.sql.Connection
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pg_stream.SendInteger(5+PG_PASSWORD.length(),4);
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pg_stream.Send(PG_PASSWORD.getBytes());
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pg_stream.SendInteger(0,1);
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//pg_stream.SendPacket(PG_PASSWORD.getBytes());
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pg_stream.flush();
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break;
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case AUTH_REQ_CRYPT:
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@ -276,11 +238,11 @@ public class Connection implements java.sql.Connection
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pg_stream.SendInteger(5+crypted.length(),4);
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pg_stream.Send(crypted.getBytes());
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pg_stream.SendInteger(0,1);
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//pg_stream.SendPacket(UnixCrypt.crypt(salt,PG_PASSWORD).getBytes());
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pg_stream.flush();
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break;
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default:
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throw new SQLException("Authentication type "+areq+" not supported");
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throw new SQLException("Authentication type "+areq+" not supported. Check that you have configured the pg_hba.conf file to include the client's IP address or Subnet, and is using a supported authentication scheme.");
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}
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break;
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@ -511,7 +473,9 @@ public class Connection implements java.sql.Connection
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*/
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public java.sql.DatabaseMetaData getMetaData() throws SQLException
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{
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return new DatabaseMetaData(this);
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if(metadata==null)
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metadata = new DatabaseMetaData(this);
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return metadata;
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}
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/**
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@ -631,8 +595,6 @@ public class Connection implements java.sql.Connection
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*/
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public void addWarning(String msg)
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{
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//PrintStream log = DriverManager.getLogStream();
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//if(log!=null)
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DriverManager.println(msg);
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// Add the warning to the chain
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@ -691,6 +653,7 @@ public class Connection implements java.sql.Connection
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buf = sql.getBytes();
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pg_stream.Send(buf);
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pg_stream.SendChar(0);
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pg_stream.flush();
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} catch (IOException e) {
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throw new SQLException("I/O Error: " + e.toString());
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}
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@ -726,6 +689,7 @@ public class Connection implements java.sql.Connection
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pg_stream.SendChar('Q');
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pg_stream.SendChar(' ');
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pg_stream.SendChar(0);
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pg_stream.flush();
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} catch (IOException e) {
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throw new SQLException("I/O Error: " + e.toString());
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}
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@ -964,6 +928,8 @@ public class Connection implements java.sql.Connection
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return ((Serialize)o).fetch(Integer.parseInt(value));
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}
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} catch(SQLException sx) {
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// rethrow the exception. Done because we capture any others next
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sx.fillInStackTrace();
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throw sx;
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} catch(Exception ex) {
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throw new SQLException("Failed to create object for "+type+": "+ex);
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@ -999,14 +965,17 @@ public class Connection implements java.sql.Connection
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// If so, then call it's fetch method.
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if(x instanceof Serialize)
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return ((Serialize)x).store(o);
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// Thow an exception because the type is unknown
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throw new SQLException("The object could not be stored. Check that any tables required have already been created in the database.");
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} catch(SQLException sx) {
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// rethrow the exception. Done because we capture any others next
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sx.fillInStackTrace();
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throw sx;
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} catch(Exception ex) {
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throw new SQLException("Failed to store object: "+ex);
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}
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// should never be reached
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return 0;
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}
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/**
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@ -1045,10 +1014,12 @@ public class Connection implements java.sql.Connection
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private static final String defaultObjectTypes[][] = {
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{"box", "postgresql.geometric.PGbox"},
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{"circle", "postgresql.geometric.PGcircle"},
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{"line", "postgresql.geometric.PGline"},
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{"lseg", "postgresql.geometric.PGlseg"},
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{"path", "postgresql.geometric.PGpath"},
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{"point", "postgresql.geometric.PGpoint"},
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{"polygon", "postgresql.geometric.PGpolygon"}
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{"polygon", "postgresql.geometric.PGpolygon"},
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{"money", "postgresql.util.PGmoney"}
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};
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// This initialises the objectTypes hashtable
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@ -37,6 +37,9 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
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static final int iInt4Oid = 23; // OID for int4
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static final int VARHDRSZ = 4; // length for int4
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// This is a default value for remarks
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private static final byte defaultRemarks[]="no remarks".getBytes();
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public DatabaseMetaData(Connection conn)
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{
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this.connection = conn;
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@ -170,7 +173,7 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
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*/
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public String getDatabaseProductVersion() throws SQLException
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{
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return ("6.3");
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return ("6.4");
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}
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/**
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@ -1473,39 +1476,37 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
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Field f[] = new Field[8];
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ResultSet r; // ResultSet for the SQL query that we need to do
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Vector v = new Vector(); // The new ResultSet tuple stuff
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String remarks = new String("no remarks");
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f[0] = new Field(connection, new String("PROCEDURE_CAT"), iVarcharOid, 32);
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f[1] = new Field(connection, new String("PROCEDURE_SCHEM"), iVarcharOid, 32);
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f[2] = new Field(connection, new String("PROCEDURE_NAME"), iVarcharOid, 32);
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f[3] = null;
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f[4] = null;
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f[5] = null;
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f[6] = new Field(connection, new String("REMARKS"), iVarcharOid, 8192);
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f[7] = new Field(connection, new String("PROCEDURE_TYPE"), iInt2Oid, 2);
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r = connection.ExecSQL("select proname, proretset from pg_proc order by proname");
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if (r.getColumnCount() != 2 || r.getTupleCount() <= 1)
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throw new SQLException("Unexpected return from query for procedure list");
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byte remarks[] = defaultRemarks;
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f[0] = new Field(connection, "PROCEDURE_CAT", iVarcharOid, 32);
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f[1] = new Field(connection, "PROCEDURE_SCHEM", iVarcharOid, 32);
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f[2] = new Field(connection, "PROCEDURE_NAME", iVarcharOid, 32);
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f[3] = f[4] = f[5] = null; // reserved, must be null for now
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f[6] = new Field(connection, "REMARKS", iVarcharOid, 8192);
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f[7] = new Field(connection, "PROCEDURE_TYPE", iInt2Oid, 2);
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// If the pattern is null, then set it to the default
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if(procedureNamePattern==null)
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procedureNamePattern="%";
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r = connection.ExecSQL("select proname, proretset from pg_proc where proname like '"+procedureNamePattern.toLowerCase()+"' order by proname");
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while (r.next())
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{
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byte[][] tuple = new byte[8][0];
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String name = r.getString(1);
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remarks = new String("no remarks");
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boolean retset = r.getBoolean(2);
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tuple[0] = null; // Catalog name
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tuple[1] = null; // Schema name
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tuple[2] = name.getBytes(); // Procedure name
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tuple[3] = null; // Reserved
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tuple[4] = null; // Reserved
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tuple[5] = null; // Reserved
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tuple[6] = remarks.getBytes(); // Remarks
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tuple[7] = new byte[1];
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if (retset)
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tuple[7][0] = (byte)java.sql.DatabaseMetaData.procedureReturnsResult;
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tuple[2] = r.getBytes(1); // Procedure name
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tuple[3] = tuple[4] = tuple[5] = null; // Reserved
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tuple[6] = remarks; // Remarks
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if (r.getBoolean(2))
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tuple[7] = Integer.toString(java.sql.DatabaseMetaData.procedureReturnsResult).getBytes();
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else
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tuple[7][0] = (byte)java.sql.DatabaseMetaData.procedureNoResult;
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tuple[7] = Integer.toString(java.sql.DatabaseMetaData.procedureNoResult).getBytes();
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v.addElement(tuple);
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}
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return new ResultSet(connection, f, v, "OK", 1);
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@ -1559,6 +1560,12 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
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// Implementation note: This is required for Borland's JBuilder to work
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public java.sql.ResultSet getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern) throws SQLException
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{
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if(procedureNamePattern==null)
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procedureNamePattern="%";
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if(columnNamePattern==null)
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columnNamePattern="%";
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// for now, this returns an empty result set.
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Field f[] = new Field[13];
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ResultSet r; // ResultSet for the SQL query that we need to do
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@ -1578,6 +1585,8 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
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f[11] = new Field(connection, new String("NULLABLE"), iInt2Oid, 2);
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f[12] = new Field(connection, new String("REMARKS"), iVarcharOid, 32);
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// add query loop here
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return new ResultSet(connection, f, v, "OK", 1);
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}
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@ -1612,7 +1621,7 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
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* @param types a list of table types to include; null returns
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* all types
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* @return each row is a table description
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* @exception SQLException if a database-access error occurs.
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* @exception SQLException if a database-access error occurs.
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*/
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public java.sql.ResultSet getTables(String catalog, String schemaPattern, String tableNamePattern, String types[]) throws SQLException
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{
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@ -1620,6 +1629,9 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
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if(types==null)
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types = defaultTableTypes;
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if(tableNamePattern==null)
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tableNamePattern="%";
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// the field descriptors for the new ResultSet
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Field f[] = new Field[5];
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ResultSet r; // ResultSet for the SQL query that we need to do
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@ -1632,7 +1644,7 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
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f[4] = new Field(connection, new String("REMARKS"), iVarcharOid, 32);
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// Now form the query
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StringBuffer sql = new StringBuffer("select relname,oid from pg_class where ");
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StringBuffer sql = new StringBuffer("select relname,oid from pg_class where (");
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boolean notFirst=false;
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for(int i=0;i<types.length;i++) {
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if(notFirst)
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@ -1644,32 +1656,35 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
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}
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}
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// Added by Stefan Andreasen <stefan@linux.kapow.dk>
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// Now take the pattern into account
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sql.append(") and relname like '");
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sql.append(tableNamePattern.toLowerCase());
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sql.append("'");
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// Now run the query
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r = connection.ExecSQL(sql.toString());
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if (r.getColumnCount() != 2)
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throw new SQLException("Unexpected return from query for table list");
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byte remarks[];
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while (r.next())
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{
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byte[][] tuple = new byte[5][0];
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String name = r.getString(1);
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String remarks = new String("no remarks");
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// Fetch the description for the table (if any)
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ResultSet dr = connection.ExecSQL("select description from pg_description where objoid="+r.getInt(2));
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if(dr.getTupleCount()==1) {
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dr.next();
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remarks=dr.getString(1);
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}
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remarks = dr.getBytes(1);
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} else
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remarks = defaultRemarks;
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dr.close();
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tuple[0] = null; // Catalog name
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tuple[1] = null; // Schema name
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tuple[2] = name.getBytes(); // Table name
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tuple[3] = null; // Table type
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tuple[4] = remarks.getBytes(); // Remarks
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tuple[0] = null; // Catalog name
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tuple[1] = null; // Schema name
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tuple[2] = r.getBytes(1); // Table name
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tuple[3] = null; // Table type
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tuple[4] = remarks; // Remarks
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v.addElement(tuple);
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}
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r.close();
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||||
|
@ -1848,28 +1863,34 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
|
|||
f[16] = new Field(connection, new String("ORDINAL_POSITION"), iInt4Oid,4);
|
||||
f[17] = new Field(connection, new String("IS_NULLABLE"), iVarcharOid, 32);
|
||||
|
||||
// Added by Stefan Andreasen <stefan@linux.kapow.dk>
|
||||
// If the pattern are null then set them to %
|
||||
if (tableNamePattern == null) tableNamePattern="%";
|
||||
if (columnNamePattern == null) columnNamePattern="%";
|
||||
|
||||
// Now form the query
|
||||
r = connection.ExecSQL("select a.oid,c.relname,a.attname,a.atttypid,a.attnum,a.attnotnull,a.attlen,a.atttypmod from pg_class c, pg_attribute a where a.attrelid=c.oid and c.relname like '"+tableNamePattern+"' and a.attname like '"+columnNamePattern+"' and a.attnum>0 order by c.relname,a.attnum");
|
||||
// Modified by Stefan Andreasen <stefan@linux.kapow.dk>
|
||||
r = connection.ExecSQL("select a.oid,c.relname,a.attname,a.atttypid,a.attnum,a.attnotnull,a.attlen,a.atttypmod from pg_class c, pg_attribute a where a.attrelid=c.oid and c.relname like '"+tableNamePattern.toLowerCase()+"' and a.attname like '"+columnNamePattern.toLowerCase()+"' and a.attnum>0 order by c.relname,a.attnum");
|
||||
|
||||
byte remarks[];
|
||||
|
||||
while(r.next()) {
|
||||
byte[][] tuple = new byte[18][0];
|
||||
|
||||
String name = r.getString(1);
|
||||
String remarks = new String("no remarks");
|
||||
String columnSize;
|
||||
|
||||
// Fetch the description for the table (if any)
|
||||
ResultSet dr = connection.ExecSQL("select description from pg_description where objoid="+r.getInt(1));
|
||||
if(dr.getTupleCount()==1) {
|
||||
dr.next();
|
||||
remarks=dr.getString(1);
|
||||
}
|
||||
tuple[11] = dr.getBytes(1);
|
||||
} else
|
||||
tuple[11] = defaultRemarks;
|
||||
|
||||
dr.close();
|
||||
|
||||
tuple[0] = "".getBytes(); // Catalog name
|
||||
tuple[1] = "".getBytes(); // Schema name
|
||||
tuple[2] = r.getString(2).getBytes(); // Table name
|
||||
tuple[3] = r.getString(3).getBytes(); // Column name
|
||||
tuple[2] = r.getBytes(2); // Table name
|
||||
tuple[3] = r.getBytes(3); // Column name
|
||||
|
||||
dr = connection.ExecSQL("select typname from pg_type where oid = "+r.getString(4));
|
||||
dr.next();
|
||||
|
@ -1877,16 +1898,16 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
|
|||
dr.close();
|
||||
tuple[4] = Integer.toString(Field.getSQLType(typname)).getBytes(); // Data type
|
||||
tuple[5] = typname.getBytes(); // Type name
|
||||
|
||||
|
||||
// Column size
|
||||
// Looking at the psql source,
|
||||
// I think the length of a varchar as specified when the table was created
|
||||
// should be extracted from atttypmod which contains this length + sizeof(int32)
|
||||
if (typname.equals("bpchar") || typname.equals("varchar")) {
|
||||
int atttypmod = r.getInt(8);
|
||||
columnSize = Integer.toString(atttypmod != -1 ? atttypmod - VARHDRSZ : 0);
|
||||
tuple[6] = Integer.toString(atttypmod != -1 ? atttypmod - VARHDRSZ : 0).getBytes();
|
||||
} else
|
||||
columnSize = r.getString(7);
|
||||
tuple[6] = columnSize.getBytes(); // Column size
|
||||
tuple[6] = r.getBytes(7);
|
||||
|
||||
tuple[7] = null; // Buffer length
|
||||
|
||||
|
@ -1894,8 +1915,7 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
|
|||
tuple[9] = "10".getBytes(); // Num Prec Radix - assume decimal
|
||||
|
||||
// tuple[10] is below
|
||||
|
||||
tuple[11] = remarks.getBytes(); // Remarks
|
||||
// tuple[11] is above
|
||||
|
||||
tuple[12] = null; // column default
|
||||
|
||||
|
@ -1904,7 +1924,7 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
|
|||
|
||||
tuple[15] = tuple[6]; // char octet length
|
||||
|
||||
tuple[16] = r.getString(5).getBytes(); // ordinal position
|
||||
tuple[16] = r.getBytes(5); // ordinal position
|
||||
|
||||
String nullFlag = r.getString(6);
|
||||
tuple[10] = Integer.toString(nullFlag.equals("f")?java.sql.DatabaseMetaData.columnNullable:java.sql.DatabaseMetaData.columnNoNulls).getBytes(); // Nullable
|
||||
|
@ -1948,6 +1968,14 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
|
|||
Field f[] = new Field[8];
|
||||
Vector v = new Vector();
|
||||
|
||||
if(table==null)
|
||||
table="%";
|
||||
|
||||
if(columnNamePattern==null)
|
||||
columnNamePattern="%";
|
||||
else
|
||||
columnNamePattern=columnNamePattern.toLowerCase();
|
||||
|
||||
f[0] = new Field(connection,new String("TABLE_CAT"),iVarcharOid,32);
|
||||
f[1] = new Field(connection,new String("TABLE_SCHEM"),iVarcharOid,32);
|
||||
f[2] = new Field(connection,new String("TABLE_NAME"),iVarcharOid,32);
|
||||
|
@ -1958,11 +1986,13 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
|
|||
f[7] = new Field(connection,new String("IS_GRANTABLE"),iVarcharOid,32);
|
||||
|
||||
// This is taken direct from the psql source
|
||||
ResultSet r = connection.ExecSQL("SELECT relname, relacl FROM pg_class, pg_user WHERE ( relkind = 'r' OR relkind = 'i') and relname !~ '^pg_' and relname !~ '^xin[vx][0-9]+' and usesysid = relowner ORDER BY relname");
|
||||
ResultSet r = connection.ExecSQL("SELECT relname, relacl FROM pg_class, pg_user WHERE ( relkind = 'r' OR relkind = 'i') and relname !~ '^pg_' and relname !~ '^xin[vx][0-9]+' and usesysid = relowner and relname like '"+table.toLowerCase()+"' ORDER BY relname");
|
||||
while(r.next()) {
|
||||
byte[][] tuple = new byte[8][0];
|
||||
tuple[0] = tuple[1]= "".getBytes();
|
||||
DriverManager.println("relname=\""+r.getString(1)+"\" relacl=\""+r.getString(2)+"\"");
|
||||
|
||||
// For now, don't add to the result as relacl needs to be processed.
|
||||
//v.addElement(tuple);
|
||||
}
|
||||
|
||||
|
@ -2122,7 +2152,7 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
|
|||
"'1' as KEY_SEQ,"+ // -- fake it as a String for now
|
||||
"t.typname as PK_NAME " +
|
||||
" FROM pg_class bc, pg_class ic, pg_index i, pg_attribute a, pg_type t " +
|
||||
" WHERE relkind = 'r' " + // -- not indices
|
||||
" WHERE bc.relkind = 'r' " + // -- not indices
|
||||
" and bc.relname ~ '"+table+"'" +
|
||||
" and i.indrelid = bc.oid" +
|
||||
" and i.indexrelid = ic.oid" +
|
||||
|
@ -2379,22 +2409,30 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
|
|||
f[16] = new Field(connection, new String("SQL_DATETIME_SUB"), iInt4Oid, 4);
|
||||
f[17] = new Field(connection, new String("NUM_PREC_RADIX"), iInt4Oid, 4);
|
||||
|
||||
// cache some results, this will keep memory useage down, and speed
|
||||
// things up a little.
|
||||
byte b9[] = "9".getBytes();
|
||||
byte b10[] = "10".getBytes();
|
||||
byte bf[] = "f".getBytes();
|
||||
byte bnn[] = Integer.toString(typeNoNulls).getBytes();
|
||||
byte bts[] = Integer.toString(typeSearchable).getBytes();
|
||||
|
||||
while(rs.next()) {
|
||||
byte[][] tuple = new byte[18][];
|
||||
String typname=rs.getString(1);
|
||||
tuple[0] = typname.getBytes();
|
||||
tuple[1] = Integer.toString(Field.getSQLType(typname)).getBytes();
|
||||
tuple[2] = "9".getBytes(); // for now
|
||||
tuple[6] = Integer.toString(typeNoNulls).getBytes(); // for now
|
||||
tuple[7] = "f".getBytes(); // false for now - not case sensitive
|
||||
tuple[8] = Integer.toString(typeSearchable).getBytes();
|
||||
tuple[9] = "f".getBytes(); // false for now - it's signed
|
||||
tuple[10] = "f".getBytes(); // false for now - must handle money
|
||||
tuple[11] = "f".getBytes(); // false for now - handle autoincrement
|
||||
tuple[2] = b9; // for now
|
||||
tuple[6] = bnn; // for now
|
||||
tuple[7] = bf; // false for now - not case sensitive
|
||||
tuple[8] = bts;
|
||||
tuple[9] = bf; // false for now - it's signed
|
||||
tuple[10] = bf; // false for now - must handle money
|
||||
tuple[11] = bf; // false for now - handle autoincrement
|
||||
// 12 - LOCAL_TYPE_NAME is null
|
||||
// 13 & 14 ?
|
||||
// 15 & 16 are unused so we return null
|
||||
tuple[17] = "10".getBytes(); // everything is base 10
|
||||
tuple[17] = b10; // everything is base 10
|
||||
v.addElement(tuple);
|
||||
}
|
||||
rs.close();
|
||||
|
@ -2431,7 +2469,7 @@ public class DatabaseMetaData implements java.sql.DatabaseMetaData
|
|||
* within index; zero when TYPE is tableIndexStatistic
|
||||
* <LI><B>COLUMN_NAME</B> String => column name; null when TYPE is
|
||||
* tableIndexStatistic
|
||||
* <LI><B>ASC_OR_DESC</B> String => column sort sequence, "A" => ascending,
|
||||
* <LI><B>ASC_OR_DESC</B> String => column sort sequence, "A" => ascending
|
||||
* "D" => descending, may be null if sort sequence is not supported;
|
||||
* null when TYPE is tableIndexStatistic
|
||||
* <LI><B>CARDINALITY</B> int => When TYPE is tableIndexStatisic then
|
||||
|
|
|
@ -27,7 +27,7 @@ public class Driver implements java.sql.Driver
|
|||
// These should be in sync with the backend that the driver was
|
||||
// distributed with
|
||||
static final int MAJORVERSION = 6;
|
||||
static final int MINORVERSION = 3;
|
||||
static final int MINORVERSION = 4;
|
||||
|
||||
static
|
||||
{
|
||||
|
|
|
@ -20,7 +20,16 @@ public class PG_Stream
|
|||
{
|
||||
private Socket connection;
|
||||
private InputStream pg_input;
|
||||
private OutputStream pg_output;
|
||||
private BufferedOutputStream pg_output;
|
||||
|
||||
// This is the error message returned when an EOF occurs
|
||||
private static final String EOF_MSG = "The backend has broken the connection. Possibly the action you have attempted has caused it to close.";
|
||||
|
||||
// This is the error message returned when an IOException occurs
|
||||
private static final String IOE_MSG = "IOError while reading from backend: ";
|
||||
|
||||
// This is the error message returned when flushing the stream.
|
||||
private static final String FLUSH_MSG = "Error flushing output: ";
|
||||
|
||||
/**
|
||||
* Constructor: Connect to the PostgreSQL back end and return
|
||||
|
@ -33,8 +42,13 @@ public class PG_Stream
|
|||
public PG_Stream(String host, int port) throws IOException
|
||||
{
|
||||
connection = new Socket(host, port);
|
||||
|
||||
// Submitted by Jason Venner <jason@idiom.com> adds a 10x speed
|
||||
// improvement on FreeBSD machines (caused by a bug in their TCP Stack)
|
||||
connection.setTcpNoDelay(true);
|
||||
|
||||
pg_input = connection.getInputStream();
|
||||
pg_output = connection.getOutputStream();
|
||||
pg_output = new BufferedOutputStream(connection.getOutputStream());
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -45,7 +59,6 @@ public class PG_Stream
|
|||
*/
|
||||
public void SendChar(int val) throws IOException
|
||||
{
|
||||
//pg_output.write(val);
|
||||
byte b[] = new byte[1];
|
||||
b[0] = (byte)val;
|
||||
pg_output.write(b);
|
||||
|
@ -165,9 +178,9 @@ public class PG_Stream
|
|||
try
|
||||
{
|
||||
c = pg_input.read();
|
||||
if (c < 0) throw new IOException("EOF");
|
||||
if (c < 0) throw new IOException(EOF_MSG);
|
||||
} catch (IOException e) {
|
||||
throw new SQLException("Error reading from backend: " + e.toString());
|
||||
throw new SQLException(IOE_MSG + e.toString());
|
||||
}
|
||||
return c;
|
||||
}
|
||||
|
@ -190,11 +203,11 @@ public class PG_Stream
|
|||
int b = pg_input.read();
|
||||
|
||||
if (b < 0)
|
||||
throw new IOException("EOF");
|
||||
throw new IOException(EOF_MSG);
|
||||
n = n | (b << (8 * i)) ;
|
||||
}
|
||||
} catch (IOException e) {
|
||||
throw new SQLException("Error reading from backend: " + e.toString());
|
||||
throw new SQLException(IOE_MSG + e.toString());
|
||||
}
|
||||
return n;
|
||||
}
|
||||
|
@ -217,11 +230,11 @@ public class PG_Stream
|
|||
int b = pg_input.read();
|
||||
|
||||
if (b < 0)
|
||||
throw new IOException("EOF");
|
||||
throw new IOException(EOF_MSG);
|
||||
n = b | (n << 8);
|
||||
}
|
||||
} catch (IOException e) {
|
||||
throw new SQLException("Error reading from backend: " + e.toString());
|
||||
throw new SQLException(IOE_MSG + e.toString());
|
||||
}
|
||||
return n;
|
||||
}
|
||||
|
@ -246,7 +259,7 @@ public class PG_Stream
|
|||
{
|
||||
int c = pg_input.read();
|
||||
if (c < 0)
|
||||
throw new IOException("EOF");
|
||||
throw new IOException(EOF_MSG);
|
||||
else if (c == 0)
|
||||
break;
|
||||
else
|
||||
|
@ -255,7 +268,7 @@ public class PG_Stream
|
|||
if (s >= maxsiz)
|
||||
throw new IOException("Too Much Data");
|
||||
} catch (IOException e) {
|
||||
throw new SQLException("Error reading from backend: " + e.toString());
|
||||
throw new SQLException(IOE_MSG + e.toString());
|
||||
}
|
||||
String v = new String(rst, 0, s);
|
||||
return v;
|
||||
|
@ -314,21 +327,8 @@ public class PG_Stream
|
|||
private byte[] Receive(int siz) throws SQLException
|
||||
{
|
||||
byte[] answer = new byte[siz];
|
||||
int s = 0;
|
||||
|
||||
try
|
||||
{
|
||||
while (s < siz)
|
||||
{
|
||||
int w = pg_input.read(answer, s, siz - s);
|
||||
if (w < 0)
|
||||
throw new IOException("EOF");
|
||||
s += w;
|
||||
}
|
||||
} catch (IOException e) {
|
||||
throw new SQLException("Error reading from backend: " + e.toString());
|
||||
}
|
||||
return answer;
|
||||
Receive(answer,0,siz);
|
||||
return answer;
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -349,11 +349,11 @@ public class PG_Stream
|
|||
{
|
||||
int w = pg_input.read(b, off+s, siz - s);
|
||||
if (w < 0)
|
||||
throw new IOException("EOF");
|
||||
throw new IOException(EOF_MSG);
|
||||
s += w;
|
||||
}
|
||||
} catch (IOException e) {
|
||||
throw new SQLException("Error reading from backend: " + e.toString());
|
||||
throw new SQLException(IOE_MSG + e.toString());
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -367,7 +367,7 @@ public class PG_Stream
|
|||
try {
|
||||
pg_output.flush();
|
||||
} catch (IOException e) {
|
||||
throw new SQLException("Error flushing output: " + e.toString());
|
||||
throw new SQLException(FLUSH_MSG + e.toString());
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -308,24 +308,21 @@ public class PreparedStatement extends Statement implements java.sql.PreparedSta
|
|||
public void setDate(int parameterIndex, java.sql.Date x) throws SQLException
|
||||
{
|
||||
SimpleDateFormat df = new SimpleDateFormat("''"+connection.getDateStyle()+"''");
|
||||
|
||||
// Ideally the following should work:
|
||||
|
||||
set(parameterIndex, df.format(x));
|
||||
|
||||
// The above is how the date should be handled.
|
||||
//
|
||||
// set(parameterIndex, df.format(x));
|
||||
// However, in JDK's prior to 1.1.6 (confirmed with the
|
||||
// Linux jdk1.1.3 and the Win95 JRE1.1.5), SimpleDateFormat seems
|
||||
// to format a date to the previous day. So the fix is to add a day
|
||||
// before formatting.
|
||||
//
|
||||
// however, SimpleDateFormat seems to format a date to the previous
|
||||
// day. So a fix (for now) is to add a day before formatting.
|
||||
// This needs more people to confirm this is really happening, or
|
||||
// possibly for us to implement our own formatting code.
|
||||
// PS: 86400000 is one day
|
||||
//
|
||||
// I've tested this with the Linux jdk1.1.3 and the Win95 JRE1.1.5
|
||||
//
|
||||
set(parameterIndex, df.format(new java.util.Date(x.getTime()+DAY)));
|
||||
//set(parameterIndex, df.format(new java.util.Date(x.getTime()+86400000)));
|
||||
}
|
||||
|
||||
// This equates to 1 day
|
||||
private static final int DAY = 86400000;
|
||||
|
||||
/**
|
||||
* Set a parameter to a java.sql.Time value. The driver converts
|
||||
* this to a SQL TIME value when it sends it to the database.
|
||||
|
|
|
@ -714,6 +714,12 @@ public class ResultSet implements java.sql.ResultSet
|
|||
throw new SQLException("Column index out of range");
|
||||
field = fields[columnIndex - 1];
|
||||
|
||||
// some fields can be null, mainly from those returned by MetaData methods
|
||||
if(field==null) {
|
||||
wasNullFlag=true;
|
||||
return null;
|
||||
}
|
||||
|
||||
switch (field.getSQLType())
|
||||
{
|
||||
case Types.BIT:
|
||||
|
|
|
@ -121,11 +121,7 @@ public class ResultSetMetaData implements java.sql.ResultSetMetaData
|
|||
{
|
||||
String type_name = getField(column).getTypeName();
|
||||
|
||||
if (type_name.equals("cash"))
|
||||
return true;
|
||||
if (type_name.equals("money"))
|
||||
return true;
|
||||
return false;
|
||||
return type_name.equals("cash") || type_name.equals("money");
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -214,11 +210,14 @@ public class ResultSetMetaData implements java.sql.ResultSetMetaData
|
|||
*
|
||||
* @param column the first column is 1, the second is 2, etc.
|
||||
* @return the column name
|
||||
* @exception SQLException if a databvase access error occurs
|
||||
* @exception SQLException if a database access error occurs
|
||||
*/
|
||||
public String getColumnName(int column) throws SQLException
|
||||
{
|
||||
return getField(column).name;
|
||||
Field f = getField(column);
|
||||
if(f!=null)
|
||||
return f.name;
|
||||
return "field"+column;
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -233,13 +232,7 @@ public class ResultSetMetaData implements java.sql.ResultSetMetaData
|
|||
*/
|
||||
public String getSchemaName(int column) throws SQLException
|
||||
{
|
||||
String table_name = getTableName(column);
|
||||
|
||||
// If the table name is invalid, so are we.
|
||||
if (table_name.equals(""))
|
||||
return "";
|
||||
return ""; // Ok, so I don't know how to
|
||||
// do this as yet.
|
||||
return "";
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -328,12 +321,7 @@ public class ResultSetMetaData implements java.sql.ResultSetMetaData
|
|||
*/
|
||||
public String getCatalogName(int column) throws SQLException
|
||||
{
|
||||
String table_name = getTableName(column);
|
||||
|
||||
if (table_name.equals(""))
|
||||
return "";
|
||||
return ""; // As with getSchemaName(), this
|
||||
// is just the start of it.
|
||||
return "";
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
Loading…
Reference in New Issue