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/*
 * Copyright The Microcks 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
 *
 *  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 io.github.microcks.util.dispatcher;

import com.fasterxml.jackson.annotation.JsonPropertyOrder;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * Represent the specification of a Fallback evaluation. dispatcher should be the original dispatcher to
 * apply with its dispatcherRules companion. If no response actually found by mock controller, the
 * fallback will be used as the name of response to return in any cases.
 * @author laurent
 */
@JsonPropertyOrder({ "dispatcher", "dispatcherRules", "fallback" })
public class FallbackSpecification {

   private String dispatcher;
   private String dispatcherRules;
   private String fallback;

   public String getDispatcher() {
      return dispatcher;
   }

   public void setDispatcher(String dispatcher) {
      this.dispatcher = dispatcher;
   }

   public String getDispatcherRules() {
      return dispatcherRules;
   }

   public void setDispatcherRules(String dispatcherRules) {
      this.dispatcherRules = dispatcherRules;
   }

   public String getFallback() {
      return fallback;
   }

   public void setFallback(String fallback) {
      this.fallback = fallback;
   }

   /**
    * Build a specification from a JSON string.
    * @param jsonPayload The JSON payload representing valid specification
    * @return a newly built FallbackSpecification
    * @throws JsonMappingException if given JSON string cannot be parsed as a FallbackSpecification
    */
   public static FallbackSpecification buildFromJsonString(String jsonPayload) throws JsonMappingException {
      FallbackSpecification specification = null;
      try {
         ObjectMapper mapper = new ObjectMapper();
         specification = mapper.readValue(jsonPayload, FallbackSpecification.class);
      } catch (Exception e) {
         throw new JsonMappingException("Given JSON string cannot be interpreted as valid FallbackSpecification");
      }
      return specification;
   }
}