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JDBC Driver for the Firebird RDBMS
/*
* Firebird Open Source JavaEE Connector - JDBC Driver
*
* Distributable under LGPL license.
* You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* LGPL License for more details.
*
* This file was created by members of the firebird development team.
* All individual contributions remain the Copyright (C) of those
* individuals. Contributors to this file are either listed here or
* can be obtained from a source control history command.
*
* All rights reserved.
*/
package org.firebirdsql.gds.impl;
import org.firebirdsql.gds.JaybirdErrorCodes;
import org.firebirdsql.gds.ng.FbExceptionBuilder;
import java.sql.SQLException;
/**
* Container for attachment information (ie server, port and filename/alias).
*/
public class DbAttachInfo {
private String server = "localhost";
private int port = 3050;
private String fileName;
private DbAttachInfo(String server, Integer port, String fileName, String originalConnectString)
throws SQLException {
if (fileName == null || fileName.equals("")) {
throw new FbExceptionBuilder()
.nonTransientConnectionException(JaybirdErrorCodes.jb_invalidConnectionString)
.messageParameter(originalConnectString)
.messageParameter("null or empty database name in connection string")
.toFlatSQLException();
}
if (server != null) {
this.server = server;
}
if (port != null) {
this.port = port;
}
this.fileName = fileName;
}
public String getServer() {
return server;
}
public int getPort() {
return port;
}
public String getFileName() {
return fileName;
}
public static DbAttachInfo parseConnectString(String connectString) throws SQLException {
if (connectString == null) {
throw new FbExceptionBuilder()
.nonTransientConnectionException(JaybirdErrorCodes.jb_invalidConnectionString)
.messageParameter("(null)")
.messageParameter("Connection string is missing")
.toFlatSQLException();
}
// allows standard syntax //host:port/....
// and old fb syntax host/port:....
connectString = connectString.trim();
if (connectString.startsWith("//")) {
return parseUrlConnectString(connectString.substring(2));
} else {
return parseLegacyConnectString(connectString);
}
}
private static DbAttachInfo parseUrlConnectString(String connectString) throws SQLException {
// Expect host/filename, host:port/filename, ipv4/filename, ipv4:port/filename, [ipv6]/filename or [ipv6]:port/filename
String server = null;
String fileName = null;
Integer port = null;
int sep = connectString.indexOf('/');
if (sep == 0 || sep == connectString.length() - 1) {
throw new FbExceptionBuilder()
.nonTransientConnectionException(JaybirdErrorCodes.jb_invalidConnectionString)
.messageParameter(connectString)
.messageParameter("Host separator: '/' at beginning or end")
.toFlatSQLException();
} else if (sep > 0) {
server = connectString.substring(0, sep);
fileName = connectString.substring(sep + 1);
if (server.charAt(0) == '[') {
//ipv6
int endIpv6Address = server.indexOf(']');
if (endIpv6Address == -1) {
throw new FbExceptionBuilder()
.nonTransientConnectionException(JaybirdErrorCodes.jb_invalidConnectionString)
.messageParameter(connectString)
.messageParameter("IPv6 address expected, missing closing ']'")
.toFlatSQLException();
}
if (endIpv6Address != server.length() - 1) {
if (server.charAt(endIpv6Address + 1) == ':') {
port = parsePortNumber(connectString, server.substring(endIpv6Address + 2));
} else {
throw new FbExceptionBuilder()
.nonTransientConnectionException(JaybirdErrorCodes.jb_invalidConnectionString)
.messageParameter(connectString)
.messageParameter("Unexpected tokens '" + server.substring(endIpv6Address + 1) + "' after IPv6 address")
.toFlatSQLException();
}
}
server = server.substring(1, endIpv6Address);
} else {
// ipv4 or hostname
int portSep = server.indexOf(':');
if (portSep == 0 || portSep == server.length() - 1) {
throw new FbExceptionBuilder()
.nonTransientConnectionException(JaybirdErrorCodes.jb_invalidConnectionString)
.messageParameter(connectString)
.messageParameter("Port separator: ':' at beginning or end of: " + server)
.toFlatSQLException();
} else if (portSep > 0) {
String portString = server.substring(portSep + 1);
port = parsePortNumber(connectString, portString);
server = server.substring(0, portSep);
}
}
} else if (sep == -1) {
throw new FbExceptionBuilder()
.nonTransientConnectionException(JaybirdErrorCodes.jb_invalidConnectionString)
.messageParameter(connectString)
.messageParameter("null or empty database name in connection string")
.toFlatSQLException();
}
return new DbAttachInfo(server, port, fileName, connectString);
}
private static DbAttachInfo parseLegacyConnectString(String connectString) throws SQLException {
char hostSepChar = ':';
char portSepChar = '/';
String server = null;
String fileName = null;
Integer port = null;
int sep = connectString.indexOf(hostSepChar);
if (sep == 0 || sep == connectString.length() - 1) {
throw new FbExceptionBuilder()
.nonTransientConnectionException(JaybirdErrorCodes.jb_invalidConnectionString)
.messageParameter(connectString)
.messageParameter("Host separator: '" + hostSepChar + "' at beginning or end")
.toFlatSQLException();
} else if (sep > 0) {
server = connectString.substring(0, sep);
fileName = connectString.substring(sep + 1);
int portSep = server.indexOf(portSepChar);
if (portSep == 0 || portSep == server.length() - 1) {
throw new FbExceptionBuilder()
.nonTransientConnectionException(JaybirdErrorCodes.jb_invalidConnectionString)
.messageParameter(connectString)
.messageParameter("Port separator: '" + portSepChar + "' at beginning or end of: " + server)
.toFlatSQLException();
} else if (portSep > 0) {
String portString = server.substring(portSep + 1);
port = parsePortNumber(connectString, portString);
server = server.substring(0, portSep);
}
} else if (sep == -1) {
fileName = connectString;
}
return new DbAttachInfo(server, port, fileName, connectString);
}
private static int parsePortNumber(String connectString, String portString) throws SQLException {
try {
return Integer.parseInt(portString);
} catch (NumberFormatException e) {
throw new FbExceptionBuilder()
.nonTransientConnectionException(JaybirdErrorCodes.jb_invalidConnectionString)
.messageParameter(connectString)
.messageParameter("Bad port: '" + portString + "' is not a number")
.cause(e)
.toFlatSQLException();
}
}
}