/**
    * Copyright 2005-2012 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.opensource.org/licenses/ecl2.php
    *
   * 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.rice.krad.uif.util;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.krad.web.form.UifFormBase;
  
  import java.io.Serializable;
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * Manages Uif form objects for a session
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class UifFormManager implements Serializable {
      private static final long serialVersionUID = -6323378881342207080L;
  
      private UifFormBase currentForm;
      private Map<String, UifFormBase> uifForms;
  
      public UifFormManager() {
          this.uifForms = new HashMap<String, UifFormBase>();
      }
  
      public UifFormBase getCurrentForm() {
          return currentForm;
      }
  
      public void setCurrentForm(UifFormBase currentForm) {
          this.currentForm = currentForm;
          addForm(currentForm);
      }
  
      public void addForm(UifFormBase form) {
          if (form == null) {
              return;
          }
  
          uifForms.put(form.getFormKey(), form);
      }
  
      public UifFormBase getForm(String formKey) {
          if (uifForms.containsKey(formKey)) {
              return uifForms.get(formKey);
          }
  
          return null;
      }
  
      public void removeForm(UifFormBase form) {
          if (form == null) {
              return;
          }
  
          removeFormByKey(form.getFormKey());
      }
  
      public void removeFormByKey(String formKey) {
          if (uifForms.containsKey(formKey)) {
              uifForms.remove(formKey);
          }
  
          if ((currentForm != null) && StringUtils.equals(currentForm.getFormKey(), formKey)) {
              currentForm = null;
          }
      }
  }