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/**
* ============LICENSE_START===================================================
* SPARKY (AAI UI service)
* ============================================================================
* Copyright © 2017 AT&T Intellectual Property.
* Copyright © 2017 Amdocs
* 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=====================================================
*
* ECOMP and OpenECOMP are trademarks
* and service marks of AT&T Intellectual Property.
*/
package org.openecomp.sparky.inventory;
import javax.json.Json;
import javax.json.JsonArray;
import javax.json.JsonArrayBuilder;
import javax.json.JsonObject;
import javax.json.JsonObjectBuilder;
/**
* The Class EntityHistoryQueryBuilder.
*/
public class EntityHistoryQueryBuilder {
private static final String TABLE = "table";
private static final String GRAPH = "graph";
/**
* Gets the query.
*
* @param type the type
* @return the query
*/
public static JsonObject getQuery(String type) {
if (type.equalsIgnoreCase(TABLE)) {
return createTableQuery();
} else if (type.equalsIgnoreCase(GRAPH)) {
return createGraphQuery();
} else {
return null;
}
}
/**
* Creates the graph query.
*
* @return the json object
*/
public static JsonObject createGraphQuery() {
JsonObjectBuilder jsonBuilder = Json.createObjectBuilder();
jsonBuilder.add("aggs",
Json.createObjectBuilder().add("group_by_entityType",
Json.createObjectBuilder()
.add("terms", Json.createObjectBuilder().add("field", "entityType").add("size", 0))
.add("aggs", Json.createObjectBuilder().add("group_by_date",
Json.createObjectBuilder().add("date_histogram", createDateHistogram())
.add("aggs", Json.createObjectBuilder().add("sort_by_date",
Json.createObjectBuilder().add("top_hits", createTopHitsBlob())))))));
jsonBuilder.add("size", 0);
return jsonBuilder.build();
}
/**
* Creates the table query.
*
* @return the json object
*/
public static JsonObject createTableQuery() {
JsonObjectBuilder jsonBuilder = Json.createObjectBuilder();
jsonBuilder.add("aggs",
Json.createObjectBuilder().add("group_by_entityType",
Json.createObjectBuilder()
.add("terms", Json.createObjectBuilder().add("field", "entityType").add("size", 0))
.add("aggs", Json.createObjectBuilder().add("sort_by_date",
Json.createObjectBuilder().add("top_hits", createTopHitsBlob())))));
jsonBuilder.add("size", 0);
return jsonBuilder.build();
}
/**
* Creates the date histogram.
*
* @return the json object
*/
private static JsonObject createDateHistogram() {
JsonObjectBuilder jsonBuilder = Json.createObjectBuilder();
jsonBuilder.add("field", "timestamp");
jsonBuilder.add("min_doc_count", 1);
jsonBuilder.add("interval", "day");
jsonBuilder.add("format", "epoch_millis");
return jsonBuilder.build();
}
/**
* Creates the top hits blob.
*
* @return the json object
*/
private static JsonObject createTopHitsBlob() {
JsonObjectBuilder builder = Json.createObjectBuilder();
builder.add("size", 1);
builder.add("sort", getSortCriteria());
return builder.build();
}
public static JsonArray getSortCriteria() {
JsonArrayBuilder jsonBuilder = Json.createArrayBuilder();
jsonBuilder.add(Json.createObjectBuilder().add("timestamp",
Json.createObjectBuilder().add("order", "desc")));
return jsonBuilder.build();
}
/**
* The main method.
*
* @param args the arguments
*/
public static void main(String[] args) {
System.out.println("TABLE-QUERY: " + createTableQuery().toString());
System.out.println("GRAPH_QUERY: " + createGraphQuery().toString());
}
}
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