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JDBC Driver for the Firebird RDBMS
There is a newer version: 2.2.7
/*
 * Public Firebird Java API.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *    1. Redistributions of source code must retain the above copyright notice, 
 *       this list of conditions and the following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright 
 *       notice, this list of conditions and the following disclaimer in the 
 *       documentation and/or other materials provided with the distribution. 
 *    3. The name of the author may not be used to endorse or promote products 
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.firebirdsql.gds.impl;

import java.io.Serializable;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Object representing a Firebird server version. The version string is returned
 * in response to the isc_info_firebird_version information call.
 * Expected version format is:
 * 
 * -... [,]
 * 
 * where platform is a two-character platform identification string,
 * Windows for example is "WI", type is one of the three characters:
 * "V" - production version, "T" - beta version, "X" - development version.
 *
 */
public class GDSServerVersion implements Serializable {

	private static final long serialVersionUID = -153657557318248541L;
	
	public static final String TYPE_PRODUCTION = "V";
    public static final String TYPE_BETA = "T";
    public static final String TYPE_DEVELOPMENT = "X";

    private static final Pattern VERSION_PATTERN = 
    	Pattern.compile("((\\w{2})-(\\w)(\\d+)\\.(\\d+)\\.(\\d+)\\.(\\d+)) ([^-,]+)(?:[-,](.*))?");
    
    private static final int FULL_VERSION_IDX = 1;
    private static final int PLATFORM_IDX = 2;
    private static final int TYPE_IDX = 3;
    private static final int MAJOR_IDX = 4;
    private static final int MINOR_IDX = 5;
    private static final int VARIANT_IDX = 6;
    private static final int BUILD_IDX = 7;
    private static final int SERVER_NAME_IDX = 8;
    private static final int EXTENDED_INFO_IDX = 9;    

    private String rawStr;
    
    private String platform;
    private String type;

    private String fullVersion;
    private int majorVersion;
    private int minorVersion;
    private int variant;
    private int buildNumber;

    private String serverName;
    private String extendedServerName;

    private GDSServerVersion() {
    }

    public int getBuildNumber() {
        return buildNumber;
    }

    public int getMajorVersion() {
        return majorVersion;
    }

    public int getMinorVersion() {
        return minorVersion;
    }

    public String getPlatform() {
        return platform;
    }

    public String getServerName() {
        return serverName;
    }

    public String getType() {
        return type;
    }

    public int getVariant() {
        return variant;
    }

    public String getExtendedServerName() {
        return extendedServerName;
    }
    
    public String getFullVersion() {
    	return fullVersion;
    }

    public int hashCode() {
        return rawStr.hashCode();
    }

    public boolean equals(Object obj) {
        if (obj == this) return true;

        if (!(obj instanceof GDSServerVersion)) return false;

        GDSServerVersion that = (GDSServerVersion) obj;

        return rawStr.equals(that.rawStr);
    }

    public String toString() {
        return rawStr;
    }

    /**
     * Parse the raw version string and create a GDSServerVersion object.
     * 
     * @param versionString string to parse.
     * 
     * @throws GDSServerVersionException if versionString does not match expected pattern
     */
    public static GDSServerVersion parseRawVersion(String versionString) throws GDSServerVersionException {
    	Matcher matcher = VERSION_PATTERN.matcher(versionString);
    	if (!matcher.matches()) {
    		throw new GDSServerVersionException("Version string does not match expected format");
    	}
    	
    	GDSServerVersion version = new GDSServerVersion();
    	
    	version.rawStr = versionString;
    	
    	version.serverName = matcher.group(SERVER_NAME_IDX);
    	version.extendedServerName = matcher.group(EXTENDED_INFO_IDX);
    	version.platform = matcher.group(PLATFORM_IDX);
    	version.type = matcher.group(TYPE_IDX);

    	version.fullVersion = matcher.group(FULL_VERSION_IDX);
    	version.majorVersion = Integer.parseInt(matcher.group(MAJOR_IDX));
    	version.minorVersion = Integer.parseInt(matcher.group(MINOR_IDX));
    	version.variant = Integer.parseInt(matcher.group(VARIANT_IDX));
    	version.buildNumber = Integer.parseInt(matcher.group(BUILD_IDX));
    	
    	return version;
    }
}