/*
 * $Id$ [18-Apr-2004]
 *
 * Copyright (c) 2004, Ben Fortuna
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  o Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 *  o 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.
 *
 *  o Neither the name of Ben Fortuna nor the names of any other contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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 COPYRIGHT OWNER OR
 * CONTRIBUTORS 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 net.fortuna.ical4j.model.parameter;

import net.fortuna.ical4j.model.Escapable;
import net.fortuna.ical4j.model.Parameter;
import net.fortuna.ical4j.util.Strings;

/**
 * Defines a Time Zone Identifier parameter.
 * 
 * @author benfortuna
 */
public class TzId extends Parameter implements Escapable {
    
    private static final long serialVersionUID = 2366516258055857879L;

    private static final boolean COMPATIBILITY_MODE_ENABLED = "true".equals(System.getProperty("ical4j.tzid.compatibility"));

    public static final String PREFIX = "/";

    private String value;

    /**
     * @param aValue a string representation of a time zone identifier
     */
    public TzId(final String aValue) {
        super(TZID);
        // Work around a Microsoft Bug
        // (Not conforming to rfc2445, Microsoft Exchange quotes timezone references.)
        if (COMPATIBILITY_MODE_ENABLED) {
            this.value = Strings.unquote(aValue);
        }
        else {
            this.value = aValue;
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see net.fortuna.ical4j.model.Parameter#getValue()
     */
    public final String getValue() {
        return value;
    }
}

@@ -1976,135 +1976,8 @@
 L;%0A%0A
-    private static final boolean COMPATIBILITY_MODE_ENABLED = %22true%22.equals(System.getProperty(%22ical4j.tzid.compatibility%22));%0A%0A
     
@@ -2334,34 +2334,70 @@
 if (
-COMPATIBILITY_MODE_ENABLED
+%22true%22.equals(System.getProperty(%22ical4j.tzid.compatibility%22))
 ) %7B%0A

Check compatibility system property on construction to allow property to be set programmatically after jvm startup