/**
 * ============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.parsers.query;

import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.onap.aai.db.props.AAIProperties;
import org.onap.aai.introspection.Loader;
import org.onap.aai.introspection.LoaderFactory;
import org.onap.aai.query.builder.QueryBuilder;

import java.net.URI;

/**
 * The Class QueryParser.
 */
public abstract class QueryParser {

	protected Loader loader = null;
	protected Loader latestLoader = null;
	protected QueryBuilder<Vertex> queryBuilder = null;
	
	protected QueryBuilder<Vertex> parentQueryBuilder = null;
	
	protected URI uri = null;
	
	protected String resultResource = "";
	
	protected String parentResourceType = "";
	
	protected String containerResource = "";
		
	/**
	 * Instantiates a new query parser.
	 *
	 * @param loader the loader
	 * @param queryBuilder the query builder
	 * @param uri the uri
	 */
	protected QueryParser(Loader loader, QueryBuilder<Vertex> queryBuilder, URI uri) {
		this.uri = uri;
		this.queryBuilder = queryBuilder;
		this.loader = loader;
		this.latestLoader = LoaderFactory.createLoaderForVersion(loader.getModelType(), AAIProperties.LATEST);
	}
	
	/**
	 * Instantiates a new query parser.
	 *
	 * @param loader the loader
	 * @param queryBuilder the query builder
	 */
	protected QueryParser(Loader loader, QueryBuilder<Vertex> queryBuilder) {
		this.queryBuilder = queryBuilder;
		this.loader = loader;
		this.latestLoader = LoaderFactory.createLoaderForVersion(loader.getModelType(), AAIProperties.LATEST);
	}
	
	/**
	 * Gets the container type.
	 *
	 * @return the container type
	 */
	public String getContainerType() {
		
		return this.containerResource;
	}
	
	/**
	 * Gets the parent result type.
	 *
	 * @return the parent result type
	 */
	public String getParentResultType() {
		return this.parentResourceType;
	}
	
	/**
	 * Gets the result type.
	 *
	 * @return the result type
	 */
	public String getResultType() {
		return this.resultResource;
	}
	
	/**
	 * Gets the query builder.
	 *
	 * @return the query builder
	 */
	public QueryBuilder<Vertex> getQueryBuilder() {
		return this.queryBuilder;
	}
	
	/**
	 * Gets the uri.
	 *
	 * @return the uri
	 */
	public URI getUri() {
		return this.uri;
	}
	
	/**
	 * Gets the parent query builder.
	 *
	 * @return the parent query builder
	 */
	public QueryBuilder<Vertex> getParentQueryBuilder() {
		if (this.parentQueryBuilder != null) {
			return this.parentQueryBuilder;
		} else {
			return this.queryBuilder;
		}
	}
	
	/**
	 * Checks if is dependent.
	 *
	 * @return true, if is dependent
	 */
	public boolean isDependent() {
		return !this.queryBuilder.getQuery().toString().equals(this.queryBuilder.getParentQuery().getQuery().toString());
	}

}