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/*
* ============LICENSE_START=======================================================
* VES-OPENAPI-MANAGER
* ================================================================================
* Copyright (C) 2021 Nokia. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.ves.openapi.manager.service.serialization;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.log4j.Log4j2;
import org.onap.ves.openapi.manager.model.SchemaMap;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
/**
* SchemaMapDeserializer - Deserializer of JSON file contents to SchemaMap objects
*/
@Log4j2
@Service
public class SchemaMapDeserializer {
private static final String COULD_NOT_READ_SCHEMA_MAP_MESSAGE = "Couldn't read schema map from path: ";
private final ObjectMapper objectMapper;
/**
* Constructor of SchemaMapDeserializer
* @param objectMapper ObjectMapper for YAML parsing
*/
@Autowired
public SchemaMapDeserializer(ObjectMapper objectMapper) {
this.objectMapper = objectMapper;
}
/**
* Deserializes file content to SchemaMap object
* @param schemaMapPath Path to file containing JSON formatted SchemaMap
* @return SchemaMap
*/
public SchemaMap getSchemaMapFromFile(String schemaMapPath) {
SchemaMap schemaMap;
try {
File file = new File(schemaMapPath);
List<SchemaMap.Mapping> mappings = Arrays.asList(objectMapper.readValue(file, SchemaMap.Mapping[].class));
schemaMap = new SchemaMap(mappings);
} catch (IOException e) {
schemaMap = new SchemaMap(Collections.emptyList());
log.error(COULD_NOT_READ_SCHEMA_MAP_MESSAGE + schemaMapPath, e);
}
return schemaMap;
}
}
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