/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* 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.kie.workbench.common.forms.serialization.impl;
import java.lang.reflect.Type;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import org.apache.commons.lang3.StringUtils;
import org.kie.workbench.common.forms.model.FieldDefinition;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class FieldSerializer implements JsonSerializer<FieldDefinition>,
JsonDeserializer<FieldDefinition> {
private Logger log = LoggerFactory.getLogger(FieldSerializer.class);
@Override
public JsonElement serialize(FieldDefinition field,
Type type,
JsonSerializationContext context) {
JsonElement serializedField = context.serialize(field,
field.getClass());
serializedField.getAsJsonObject().addProperty("code",
field.getFieldType().getTypeName());
serializedField.getAsJsonObject().addProperty("serializedFieldClassName",
field.getClass().getName());
return serializedField;
}
@Override
public FieldDefinition deserialize(JsonElement json,
Type typeOfT,
JsonDeserializationContext context) throws JsonParseException {
JsonObject jsonField = json.getAsJsonObject();
JsonElement jsonClassName = jsonField.get("serializedFieldClassName");
if (jsonClassName != null && !StringUtils.isEmpty(jsonClassName.getAsString())) {
try {
return context.deserialize(json,
Class.forName(jsonClassName.getAsString()));
} catch (Exception ex) {
log.error("Error deserializing field",
ex);
}
}
return null;
}
}