/*
 * Copyright 2013-2020 the original author or authors.
 *
 * 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
 *
 *      https://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.springframework.cloud.contract.verifier.messaging.internal;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * Wrapper over {@link ObjectMapper} that won't try to parse String but will directly
 * return it.
 *
 * @author Marcin Grzejszczak
 */
public class ContractVerifierObjectMapper {

	private final ObjectMapper objectMapper;

	public ContractVerifierObjectMapper(ObjectMapper objectMapper) {
		this.objectMapper = objectMapper;
	}

	public ContractVerifierObjectMapper() {
		this.objectMapper = new ObjectMapper();
	}

	public String writeValueAsString(Object payload) throws JsonProcessingException {
		if (payload instanceof String) {
			return payload.toString();
		}
		else if (payload instanceof byte[]) {
			return new String((byte[]) payload);
		}
		return this.objectMapper.writeValueAsString(payload);
	}

	public byte[] writeValueAsBytes(Object payload) throws JsonProcessingException {
		if (payload instanceof String) {
			return payload.toString().getBytes();
		}
		else if (payload instanceof byte[]) {
			return (byte[]) payload;
		}
		return this.objectMapper.writeValueAsBytes(payload);
	}

}
