/*
* Copyright (C) 2012-2014 DuyHai DOAN
*
* 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 info.archinnov.achilles.json;
import java.io.IOException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import info.archinnov.achilles.type.Counter;
import info.archinnov.achilles.type.CounterBuilder;
public final class CounterDeserializer extends JsonDeserializer<Counter> {
@Override
public Counter deserialize(JsonParser parser, DeserializationContext context) throws IOException {
Counter counter = null;
String value = parser.getText();
if (value != null && !"".equals(value.trim())) {
try {
counter = CounterBuilder.incr(Long.parseLong(value));
} catch (NumberFormatException e) {
throw new IllegalArgumentException("Cannot deserialize '" + value + "' as Long for Counter ");
}
}
return counter;
}
}