/*
* @(#)BackEnd.java 1.7 06/10/10
*
* Copyright 1990-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* 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 GNU
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package sun.tools.javazic;
/**
* <code>BackEnd</code> is an abstract base class for a back-end of compiling
* Olson's zoneinfo database and generating Java zoneinfo database.
*
* @since 1.4
*/
abstract class BackEnd {
/**
* Receives each zone's TimeZone information which was created by
* {@link Zoneinfo#parse} in class <code>Zoneinfo</code>,
* and processes it.
* @param tz Timezone object for each zone
* @return 0 if no error occurred, otherwise 1.
*/
abstract int processZoneinfo(Timezone tz);
/**
* Receives whole information which is generated by JavaZic's front-end
* in the form of Mapping object and generates total Java zone information
* file.
* @param m Mappings object which is generated by {@link Main#compile Main.compile()}.
* @return 0 if no error occurred, otherwise 1.
*/
abstract int generateSrc(Mappings m);
/**
* Decides which backend class should be used and returns its instance.
* @return an instance of backend class
*/
static BackEnd getBackEnd() {
if (Zoneinfo.isYearForTimeZoneDataSpecified) {
return new Simple();
} else if (Main.outputSrc) {
return new GenSrc();
} else if (Main.outputDoc) {
return new GenDoc();
} else {
return new Gen();
}
}
}