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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 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.onap.aai.rest.search;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.reflect.TypeToken;
public class GetCustomQueryConfig {
private JsonArray storedQueries = null;
private CustomQueryConfig customQueryConfig;
private static final String QUERY_CONFIG = "query";
private static final String REQUIRED_CONFIG = "required-properties";
private static final String OPTIONAL_CONFIG = "optional-properties";
private static final String STORED_QUERIES_CONFIG = "stored-queries";
private static final String STORED_QUERY_CONFIG = "stored-query";
public GetCustomQueryConfig(String customQueryJson) {
init(customQueryJson);
}
private void init(String customQueryJson) {
JsonObject queriesObject = JsonParser.parseString(customQueryJson).getAsJsonObject();
if (queriesObject.has(STORED_QUERIES_CONFIG)) {
storedQueries = queriesObject.getAsJsonArray(STORED_QUERIES_CONFIG);
}
}
private List<String> toStringList(JsonArray array) {
Gson converter = new Gson();
Type listType = new TypeToken<List<String>>() {}.getType();
return converter.fromJson(array, listType);
}
private List<String> getPropertyList(JsonObject configObject, String config) {
JsonElement subqueryConfig;
JsonArray props;
if (configObject.has(config)) {
subqueryConfig = configObject.get(config);
if (subqueryConfig != null && !subqueryConfig.isJsonNull()) {
props = subqueryConfig.getAsJsonArray();
if (props != null) {
return toStringList(props);
}
}
}
return toStringList(null);
}
private void getStoredQueryBlock(JsonObject configObject, String config) {
if (!configObject.has(config)) {
customQueryConfig.setQueryRequiredProperties(new ArrayList<>());
customQueryConfig.setQueryOptionalProperties(new ArrayList<>());
return;
}
JsonElement queryConfig;
JsonObject subObject;
List<String> propertyList;
queryConfig = configObject.get(config);
subObject = queryConfig.getAsJsonObject();
propertyList = getPropertyList(subObject, REQUIRED_CONFIG);
if (propertyList == null) {
propertyList = new ArrayList<>();
}
customQueryConfig.setQueryRequiredProperties(propertyList);
propertyList = getPropertyList(subObject, OPTIONAL_CONFIG);
if (propertyList == null) {
propertyList = new ArrayList<>();
}
customQueryConfig.setQueryOptionalProperties(propertyList);
}
public CustomQueryConfig getStoredQuery(String queryName) {
customQueryConfig = null;
JsonObject configObject;
JsonElement query;
JsonElement queryConfig;
for (JsonElement storedQuery : storedQueries) {
if (storedQuery.isJsonObject()) {
JsonObject queryObject = storedQuery.getAsJsonObject();
query = queryObject.get(queryName);
if (query != null) {
customQueryConfig = new CustomQueryConfig();
configObject = query.getAsJsonObject();
getStoredQueryBlock(configObject, QUERY_CONFIG);
if (configObject.has(STORED_QUERY_CONFIG)) {
queryConfig = configObject.get(STORED_QUERY_CONFIG);
customQueryConfig.setQuery(queryConfig.getAsString());
}
break;
}
}
}
return customQueryConfig;
}
}
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