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/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2019 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.sdc.dcae.catalog.commons;

import java.util.Iterator;

import com.google.common.base.Predicate;
import com.google.common.collect.Iterators;

import org.json.JSONObject;


public class Neo {

  /*
   */
  public static String literalMap(JSONObject theProps,
                                  String theNameAlias,
                                  String theValueAlias,
                                  String theAssignmentOp,
																	String theRelationOp,
                                  Predicate theFieldFilter) {
    if(theProps.length() == 0)
      return "";
    StringBuilder sb = new StringBuilder("");
    for (Iterator i = Iterators.filter(theProps.keys(),
                                       theFieldFilter);
         i.hasNext();) {
      String propName = (String)i.next();

      if (theNameAlias != null) {
        sb.append(theNameAlias)
          .append('.');
      }
      sb.append('`')
        .append(propName)
        .append('`')
        .append(theAssignmentOp)
        .append(" {")
        .append(theValueAlias)
        .append("}.")
        .append('`')
        .append(propName)
        .append('`')
        .append(theRelationOp);
    }
    return sb.substring(0, sb.length() - theRelationOp.length());
  }

  public static String literalMap(JSONObject theProps,
                                  String theAlias) {
    return literalMap(theProps, null, theAlias, ":", ",", f -> true);
  }

}