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/*
* Copyright 2000-2014 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.ui.declarative.converters;
import java.util.Locale;
import java.util.TimeZone;
import com.vaadin.data.util.converter.Converter;
import com.vaadin.ui.declarative.DesignAttributeHandler;
/**
* Utility class for {@link DesignAttributeHandler} that deals with converting
* various TimeZones to string.
*
* @since 7.4
* @author Vaadin Ltd
*/
public class DesignTimeZoneConverter implements Converter<String, TimeZone> {
@Override
public TimeZone convertToModel(String value,
Class<? extends TimeZone> targetTimeZone, Locale locale)
throws Converter.ConversionException {
if (value == null || value.isEmpty()) {
return null;
}
return TimeZone.getTimeZone(value);
}
@Override
public String convertToPresentation(TimeZone value,
Class<? extends String> targetTimeZone, Locale locale)
throws Converter.ConversionException {
if (value == null) {
return "";
} else {
return value.getID();
}
}
@Override
public Class<TimeZone> getModelType() {
return TimeZone.class;
}
@Override
public Class<String> getPresentationType() {
return String.class;
}
}
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