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/*
* ===============================LICENSE_START======================================
* dcae-analytics
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. 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.openecomp.dcae.apod.analytics.model.util.json;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Supplier;
import com.jayway.jsonpath.Configuration;
import com.jayway.jsonpath.JsonPath;
import com.jayway.jsonpath.Option;
import com.jayway.jsonpath.spi.json.JacksonJsonProvider;
import com.jayway.jsonpath.spi.json.JsonProvider;
import com.jayway.jsonpath.spi.mapper.JacksonMappingProvider;
import com.jayway.jsonpath.spi.mapper.MappingProvider;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import java.util.EnumSet;
import java.util.Set;
/**
*<p>
* {@link Supplier} that can be used by clients to get Object Mapper which specializes
* in serialize and deserialize - DCAE Analytics Model JSON Objects. Clients can
* choose to memoize this Supplier for performance enhancements
* <br>
* NOTE: This supplier also setups up {@link JsonPath} default
* config to make use of this Supplier object mapper
*</p>
* @author Rajiv Singla . Creation Date: 11/10/2016.
*/
@SuppressFBWarnings("SIC_INNER_SHOULD_BE_STATIC_ANON")
public class AnalyticsModelObjectMapperSupplier implements Supplier<ObjectMapper> {
@Override
public ObjectMapper get() {
final ObjectMapper objectMapper = new ObjectMapper();
// Serialize null values
objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
// Don't fail on unknown properties
objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
// Register Common Event Format Module
objectMapper.registerModule(new CommonEventFormatModule());
// Register TCA Policy Module
objectMapper.registerModule(new TCAPolicyModule());
// Register TCA Facade Module
objectMapper.registerModule(new TCAFacadeModelModule());
// Register TCA Controller App Config Module
objectMapper.registerModule(new TCAControllerConfigModule());
// Setup JsonPath default config
setupJsonPathDefaultConfig(objectMapper);
return objectMapper;
}
/**
* Setups up default Config for {@link JsonPath}
*
* @param objectMapper Jackson object mapper
*/
private void setupJsonPathDefaultConfig(final ObjectMapper objectMapper) {
Configuration.setDefaults(new Configuration.Defaults() {
private final JsonProvider jsonProvider = new JacksonJsonProvider(objectMapper);
private final MappingProvider mappingProvider = new JacksonMappingProvider(objectMapper);
@Override
public JsonProvider jsonProvider() {
return jsonProvider;
}
@Override
public MappingProvider mappingProvider() {
return mappingProvider;
}
@Override
public Set<Option> options() {
// Json Path exceptions are suppressed, also missing properties are tolerated
return EnumSet.of(Option.DEFAULT_PATH_LEAF_TO_NULL, Option.SUPPRESS_EXCEPTIONS,
Option.ALWAYS_RETURN_LIST);
}
});
}
}
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