/*
* Copyright (c) 2010-2014. Axon Framework
*
* 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 org.axonframework.serializer.json;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import org.axonframework.common.AxonConfigurationException;
import org.axonframework.serializer.SerializationException;
import java.io.IOException;
import java.lang.reflect.Constructor;
/**
* Jackson Serializer used to serialize and deserialize Joda DateTime classes. These classes use the convention that
* the toString() method returns an ISO8601 formatted string, while a constructor accepting an Object will allow
* one to reconstruct the instant from this String.
*
* @param <T> The type of Joda object to serialize
* @author Allard Buijze
* @since 2.2
*/
public class JodaDeserializer<T> extends JsonDeserializer<T> {
private final Constructor<T> constructor;
/**
* @param instantType The type of object to serialize into
* @throws org.axonframework.common.AxonConfigurationException if the given <code>instantType</code> is
* incompatible with this serializer
*/
public JodaDeserializer(Class<T> instantType) {
try {
this.constructor = instantType.getConstructor(Object.class);
} catch (NoSuchMethodException e) {
throw new AxonConfigurationException(
"The type " + instantType.getName() + " isn't compatible with the JodaDeserializer", e);
}
}
@Override
public T deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
try {
return constructor.newInstance(jp.readValueAs(String.class));
} catch (Exception e) {
throw new SerializationException("Unable to read instant from JSON document", e);
}
}
}