/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.usergrid.corepersistence.pipeline.cursor;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
/**
* Abstract serializer other serializers should inherit from makes serialization easier
*/
public abstract class AbstractCursorSerializer<T> implements CursorSerializer<T> {
/**
* Intentionally protected. Subclasses should be singletons
*/
protected AbstractCursorSerializer() {
}
@Override
public T fromJsonNode( final JsonNode node, final ObjectMapper objectMapper ) {
try {
final Class<? extends T> classType = getType();
return objectMapper.treeToValue( node, classType );
}
catch ( JsonProcessingException e ) {
throw new CursorParseException( "Unable to deserialize value", e );
}
}
@Override
public JsonNode toNode( final ObjectMapper objectMapper, final T value ) {
return objectMapper.valueToTree( value );
}
protected abstract Class<? extends T> getType();
}