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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2022 Nordix Foundation
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.cps.utils;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.onap.cps.spi.exceptions.DataValidationException;
import org.springframework.stereotype.Component;
@Slf4j
@RequiredArgsConstructor
@Component
public class JsonObjectMapper {
private final ObjectMapper objectMapper;
/**
* Serializing generic java object to JSON using Jackson.
*
* @param object any java object value
* @return the generated JSON as a string.
*/
public String asJsonString(final Object object) {
try {
return objectMapper.writeValueAsString(object);
} catch (final JsonProcessingException e) {
log.error("Parsing error occurred while converting Object to JSON string.");
throw new DataValidationException("Parsing error occurred while converting given object to JSON string.",
e.getMessage());
}
}
/**
* Constructing JavaType out of given type (typically java.lang.Class).
* Allow efficient value conversions for structurally compatible json objects,
* according to standard Jackson configuration.
*
* @param jsonObject structurally compatible json object
* @param valueType compatible Object class type
* @param <T> type parameter
* @return a class object of specific class type 'T'
*/
public <T> T convertToValueType(final Object jsonObject, final Class<T> valueType) {
try {
return objectMapper.convertValue(jsonObject, valueType);
} catch (final IllegalArgumentException e) {
log.error("Found structurally incompatible object while converting into value type.");
throw new DataValidationException("Found structurally incompatible object while converting "
+ "into value type.", e.getMessage());
}
}
/**
* Deserialize JSON content from given JSON content String.
*
* @param jsonContent JSON content
* @param valueType compatible Object class type
* @param <T> type parameter
* @return a class object of specific class type 'T'
*/
public <T> T convertJsonString(final String jsonContent, final Class<T> valueType) {
try {
return objectMapper.readValue(jsonContent, valueType);
} catch (final JsonProcessingException e) {
log.error("Parsing error occurred while converting JSON content to specific class type.");
throw new DataValidationException("Parsing error occurred while converting "
+ "JSON content to specific class type.", e.getMessage());
}
}
}
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