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/**
* Copyright (c) 2012, 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.property;
import net.fortuna.ical4j.model.*;
import java.io.IOException;
import java.net.URISyntaxException;
import java.text.ParseException;
/**
* $Id$
*
* Created: [Apr 6, 2004]
*
* Defines a VERSION iCalendar property. When creating a new calendar you should always add a version property with
* value "2.0". There is actually a constant defined in the Version class for this. e.g:
* Calendar calendar = new Calendar();
* calendar.getProperties().add(Version.VERSION_2_0);
*
* @author Ben Fortuna
*/
public class Version extends Property {
private static final long serialVersionUID = 8872508067309087704L;
/**
* iCalendar version 2.0.
*/
public static final Version VERSION_2_0 = new ImmutableVersion("2.0");
/**
* @author Ben Fortuna An immutable instance of Version.
*/
private static final class ImmutableVersion extends Version {
private static final long serialVersionUID = -5040679357859594835L;
private ImmutableVersion(final String value) {
super(new ParameterList(true), value);
}
public void setValue(final String aValue) {
throw new UnsupportedOperationException(
"Cannot modify constant instances");
}
public void setMaxVersion(final String maxVersion) {
throw new UnsupportedOperationException(
"Cannot modify constant instances");
}
public void setMinVersion(final String minVersion) {
throw new UnsupportedOperationException(
"Cannot modify constant instances");
}
}
private String minVersion;
private String maxVersion;
/**
* Default constructor.
*/
public Version() {
super(VERSION, PropertyFactoryImpl.getInstance());
}
/**
* @param aList a list of parameters for this component
* @param aValue a value string for this component
*/
public Version(final ParameterList aList, final String aValue) {
super(VERSION, aList, PropertyFactoryImpl.getInstance());
if (aValue.indexOf(';') >= 0) {
this.minVersion = aValue.substring(0, aValue.indexOf(';') - 1);
this.maxVersion = aValue.substring(aValue.indexOf(';'));
} else {
this.maxVersion = aValue;
}
}
/**
* @param minVersion a string representation of the minimum version
* @param maxVersion a string representation of the maximum version
*/
public Version(final String minVersion, final String maxVersion) {
super(VERSION, PropertyFactoryImpl.getInstance());
this.minVersion = minVersion;
this.maxVersion = maxVersion;
}
/**
* @param aList a list of parameters for this component
* @param aVersion1 a string representation of the minimum version
* @param aVersion2 a string representation of the maximum version
*/
public Version(final ParameterList aList, final String aVersion1,
final String aVersion2) {
super(VERSION, aList, PropertyFactoryImpl.getInstance());
minVersion = aVersion1;
maxVersion = aVersion2;
}
/**
* @return Returns the maxVersion.
*/
public final String getMaxVersion() {
return maxVersion;
}
/**
* @return Returns the minVersion.
*/
public final String getMinVersion() {
return minVersion;
}
/**
* {@inheritDoc}
*/
public void setValue(final String aValue) {
if (aValue.indexOf(';') >= 0) {
this.minVersion = aValue.substring(0, aValue.indexOf(';') - 1);
this.maxVersion = aValue.substring(aValue.indexOf(';'));
} else {
this.maxVersion = aValue;
}
}
/**
* {@inheritDoc}
*/
public final String getValue() {
final StringBuilder b = new StringBuilder();
if (getMinVersion() != null) {
b.append(getMinVersion());
if (getMaxVersion() != null) {
b.append(';');
}
}
if (getMaxVersion() != null) {
b.append(getMaxVersion());
}
return b.toString();
}
/**
* @param maxVersion The maxVersion to set.
*/
public void setMaxVersion(final String maxVersion) {
this.maxVersion = maxVersion;
}
/**
* @param minVersion The minVersion to set.
*/
public void setMinVersion(final String minVersion) {
this.minVersion = minVersion;
}
public static class Factory extends Content.Factory implements PropertyFactory {
private static final long serialVersionUID = 1L;
public Factory() {
super(VERSION);
}
public Property createProperty(final ParameterList parameters, final String value)
throws IOException, URISyntaxException, ParseException {
return new Version(parameters, value);
}
public Property createProperty() {
return new Version();
}
}
}
