/*
    * Copyright 2010 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.osedu.org/licenses/ECL-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.
   */
  package org.kuali.student.contract.model.impl;
  
  import java.util.List;
  
  import org.kuali.student.contract.model.MessageStructure;
  import org.kuali.student.contract.model.Service;
  import org.kuali.student.contract.model.ServiceContractModel;
  import org.kuali.student.contract.model.ServiceMethod;
  import org.kuali.student.contract.model.XmlType;
  
  /**
   * This reads the supplied spreadsheet but then caches it so it doesn't have to
   * re-read it again.
   * @author nwright
   */
  public class ServiceContractModelCache implements ServiceContractModel {
  
      private ServiceContractModel model;
  
      public ServiceContractModelCache(ServiceContractModel model) {
          this.model = model;
      }
      private List<ServiceMethod> serviceMethods = null;
  
      @Override
      public List<ServiceMethod> getServiceMethods() {
          if (serviceMethods == null) {
              serviceMethods = model.getServiceMethods();
          }
          return serviceMethods;
      }
      private List<XmlType> xmlTypes;
  
      @Override
      public List<XmlType> getXmlTypes() {
          if (xmlTypes == null) {
              xmlTypes = model.getXmlTypes();
          }
          return xmlTypes;
      }
      private List<MessageStructure> messageStructures = null;
  
      @Override
      public List<MessageStructure> getMessageStructures() {
          if (messageStructures == null) {
              messageStructures = model.getMessageStructures();
          }
          return messageStructures;
      }
      private List<Service> services = null;
  
      @Override
      public List<Service> getServices() {
          if (services == null) {
              services = model.getServices();
          }
          return services;
      }
  
      @Override
      public List<String> getSourceNames() {
          return model.getSourceNames();
      }
  }