/*
* Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 in the LICENSE file that
* accompanied this code).
*
* 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* <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 all Java zone information
* files.
*
* @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.outputDoc) {
return new GenDoc();
} else {
return new Gen();
}
}
}