src/net/fortuna/ical4j/model/TimeZoneRegistryFactory.java

Tue, 10 Feb 2015 18:12:00 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 10 Feb 2015 18:12:00 +0100
changeset 0
fb9019fb1bf7
permissions
-rw-r--r--

Import initial revisions of existing project AndroidCaldavSyncAdapater,
forked from upstream repository at 27e8a0f8495c92e0780d450bdf0c7cec77a03a55.

     1 /**
     2  * Copyright (c) 2012, Ben Fortuna
     3  * All rights reserved.
     4  *
     5  * Redistribution and use in source and binary forms, with or without
     6  * modification, are permitted provided that the following conditions
     7  * are met:
     8  *
     9  *  o Redistributions of source code must retain the above copyright
    10  * notice, this list of conditions and the following disclaimer.
    11  *
    12  *  o Redistributions in binary form must reproduce the above copyright
    13  * notice, this list of conditions and the following disclaimer in the
    14  * documentation and/or other materials provided with the distribution.
    15  *
    16  *  o Neither the name of Ben Fortuna nor the names of any other contributors
    17  * may be used to endorse or promote products derived from this software
    18  * without specific prior written permission.
    19  *
    20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
    24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
    25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    31  */
    32 package net.fortuna.ical4j.model;
    34 import net.fortuna.ical4j.util.Configurator;
    36 /**
    37  * $Id$
    38  *
    39  * Created on 18/09/2005
    40  *
    41  * Provides access to the configured <code>TimeZoneRegistry</code> instance.
    42  * Alternative factory implementations may be specified via the following
    43  * system property:
    44  * <pre>net.fortuna.ical4j.timezone.registry=&lt;factory_class_name&gt;</pre>
    45  * @author Ben Fortuna
    46  */
    47 public abstract class TimeZoneRegistryFactory {
    49     /**
    50      * The system property used to specify an alternate
    51      * <code>TimeZoneRegistryFactory</code> implementation.
    52      */
    53     public static final String KEY_FACTORY_CLASS = "net.fortuna.ical4j.timezone.registry";
    55     private static TimeZoneRegistryFactory instance;
    56     static {
    57         try {
    58             final Class factoryClass = Class.forName(Configurator.getProperty(KEY_FACTORY_CLASS));
    59             instance = (TimeZoneRegistryFactory) factoryClass.newInstance();
    60         }
    61         catch (Exception e) {
    62             instance = new DefaultTimeZoneRegistryFactory();
    63         }
    64     }
    66     /**
    67      * @return a shared factory instance
    68      */
    69     public static TimeZoneRegistryFactory getInstance() {
    70         return instance;
    71     }
    73     /**
    74      * Returns a new instance of the configured <code>TimeZoneRegistry</code>.
    75      * @return a timezone registry instance
    76      */
    77     public abstract TimeZoneRegistry createRegistry();
    78 }

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