Coverage Report

Coverage Report - org.kuali.student.core.statement.ui.client.widgets.rules.RuleInfo

Classes in this File

Line Coverage

Branch Coverage

Complexity

RuleInfo

0/182

0/152

4.478

 /**
  * 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.core.statement.ui.client.widgets.rules;
 
 import java.util.List;
 
 import org.kuali.student.core.statement.dto.StatementInfo;
 import org.kuali.student.core.statement.dto.StatementOperatorTypeKey;
 import org.kuali.student.core.statement.ui.client.widgets.table.Node;
 
 public class RuleInfo {
 
     private StatementVO statementVO;        //top-level statement (tree ROOT)
     private EditHistory editHistory;
     private boolean simplifying;
 
     public RuleInfo() {
         setEditHistory(new EditHistory(statementVO));
         setStatementVO(createNewStatementVO());
     }
 
     public StatementVO createNewStatementVO() {
         StatementInfo newStatementTree = new StatementInfo();
         newStatementTree.setOperator(StatementOperatorTypeKey.AND);
         newStatementTree.setType(getStatementTypeKey());
         StatementVO statementVO = new StatementVO();                            
         statementVO.setStatementInfo(newStatementTree);
         return statementVO;
     }
     
     public Node getStatementTree() {
         return (statementVO != null ? statementVO.getTree() : null);
     }
     
     public EditHistory getEditHistory() {
         return editHistory;
     }
 
     public void setEditHistory(EditHistory editHistory) {
         this.editHistory = editHistory;
     }
     
     private boolean statementVOIsGroupAble(List<StatementVO> selectedStatementVOs, List<ReqComponentVO> selectedReqComponentVOs) {
         boolean orable = false;
         StatementVO enclosingStatement = null;
         boolean reqComponentsInSameGroup = true;
         int numStatementsSelection = (selectedStatementVOs == null)? 0 : selectedStatementVOs.size();
         int numReqComponentSelection = (selectedReqComponentVOs == null)? 0 : selectedReqComponentVOs.size();
         int numSelection = numStatementsSelection + numReqComponentSelection;
         
         // At least 2 items (StatementVO or RC) must be selected.
         if (numSelection >= 2) {
             if (numStatementsSelection > 0) {
                 enclosingStatement = this.statementVO.getParentStatementVO(this.statementVO, selectedStatementVOs.get(0));
             } else {
                 enclosingStatement = this.statementVO.getEnclosingStatementVO(this.statementVO, selectedReqComponentVOs.get(0));
             }
             
             if (numStatementsSelection > 0) {
                 for (StatementVO selectedStatementVO : selectedStatementVOs) {
                     StatementVO enclosingStatement2 = this.statementVO.getParentStatementVO(this.statementVO, selectedStatementVO);
                     if (enclosingStatement != enclosingStatement2) {
                         reqComponentsInSameGroup = false;
                         break;
                     }
                 }
             }
             if (numReqComponentSelection > 0) {
                 for (ReqComponentVO selectedReqCompoentVO : selectedReqComponentVOs) {
                     StatementVO enclosingStatement2 = this.statementVO.getEnclosingStatementVO(this.statementVO, selectedReqCompoentVO);
                     if (enclosingStatement != enclosingStatement2) {
                         reqComponentsInSameGroup = false;
                         break;
                     }
                 }
             }
             
             // the items selected must all belong to the same group
             if (!reqComponentsInSameGroup) return false;
             
             int childCount = (enclosingStatement == null)? 0 : enclosingStatement.getChildCount();
             
             // number of selected requirement components must be less the the total number of
             // requirement components of the enclosing statement
             if (selectedReqComponentVOs != null && !selectedReqComponentVOs.isEmpty() && childCount > numSelection) {
                 orable = true;
             } else {
                 orable = false;
             }
         } else {
             orable = false;
         }
 
         return orable;
     }
 
     public boolean statementVOIsGroupAble() {
         List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
         List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
         return statementVOIsGroupAble(selectedStatementVOs, selectedReqComponentVOs);
     }
     
     public void insertOR() {
         List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
         List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
 
         // check if the selections can be grouped by OR operator.
         if (!statementVOIsGroupAble(selectedStatementVOs, selectedReqComponentVOs)) return;
         StatementVO enclosingStatementVO = statementVO.getEnclosingStatementVO(statementVO, selectedReqComponentVOs.get(0));
 
         // create new statement to hold the new OR group
         StatementVO newStatementVO = createNewStatementVO();
         StatementInfo newLuStatementInfo = newStatementVO.getStatementInfo();
         newLuStatementInfo.setOperator(StatementOperatorTypeKey.OR);
         newStatementVO.setStatementInfo(newLuStatementInfo);
 
         // remove the selected RCs from original statement and move them into the new StatementVO
         for (ReqComponentVO selectedReqComponentVO : selectedReqComponentVOs) {
             enclosingStatementVO.removeReqComponentVO(selectedReqComponentVO);
             newStatementVO.addReqComponentVO(selectedReqComponentVO);
         }
 
         // remove the selected StatementVOs from original statement and move them into the new StatementVO
         for (StatementVO selectedStatementVO : selectedStatementVOs) {
             enclosingStatementVO.removeStatementVO(selectedStatementVO);
             newStatementVO.addStatementVO(selectedStatementVO);
         }
         enclosingStatementVO.addStatementVO(newStatementVO);
     }
     
     public void insertAND() {
         List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
         List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
 
         // check if the selections can be grouped by OR operator.
         if (!statementVOIsGroupAble(selectedStatementVOs, selectedReqComponentVOs)) return;
 
         StatementVO enclosingStatementVO = statementVO.getEnclosingStatementVO(statementVO, selectedReqComponentVOs.get(0));
         // create new statement to hold the new OR group
         StatementVO newStatementVO = createNewStatementVO();
         StatementInfo newLuStatementInfo = newStatementVO.getStatementInfo();
         newLuStatementInfo.setOperator(StatementOperatorTypeKey.AND);
         newStatementVO.setStatementInfo(newLuStatementInfo);
 
         // remove the selected RCs from original statement and move them into the new StatementVO
         for (ReqComponentVO selectedReqComponentVO : selectedReqComponentVOs) {
             enclosingStatementVO.removeReqComponentVO(selectedReqComponentVO);
             newStatementVO.addReqComponentVO(selectedReqComponentVO);
         }
 
         // remove the selected StatementVOs from original statement and move them into the new StatementVO
         for (StatementVO selectedStatementVO : selectedStatementVOs) {
             enclosingStatementVO.removeStatementVO(selectedStatementVO);
             newStatementVO.addStatementVO(selectedStatementVO);
         }
         
         enclosingStatementVO.addStatementVO(newStatementVO);
     }
     
     public boolean statementVOIsDegroupAble() {
         List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
         List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
         return statementVOIsDegroupAble(selectedStatementVOs, selectedReqComponentVOs);
     }
     
     private boolean statementVOIsDegroupAble(List<StatementVO> selectedStatementVOs, List<ReqComponentVO> selectedReqComponentVOs) {
         boolean degroupAble = false;
         boolean selectedRootStatementVO = false;
         boolean otherItemsExist = false;
 
         // at least one item is selected
         if ((selectedStatementVOs != null && !selectedStatementVOs.isEmpty()) || 
             (selectedReqComponentVOs != null && !selectedReqComponentVOs.isEmpty())) {
             degroupAble = true;
         } else {
             return false;
         }
         
         // root statement should not be selected if there are other items.
         for (StatementVO selectedStatement : selectedStatementVOs) {
             if (selectedStatement == this.statementVO) {
                 selectedRootStatementVO = true;
                 break;
             }
         }
 
         otherItemsExist = this.statementVO.getChildCount() > 0;
         if (selectedRootStatementVO && otherItemsExist) {
             degroupAble = degroupAble && false;
         } else{
             degroupAble = degroupAble && true;
         }
         
         // must leave at least 2 children in a group unselected or all children are RCs and are selected.
         // Except for root.  For root, if root statement does not have any sub statements then it is okay to delete
         for (ReqComponentVO selectedRC : selectedReqComponentVOs) {
             StatementVO parentStatementVO = this.statementVO.getEnclosingStatementVO(this.statementVO, selectedRC);
             int numSelectedChildren = 0;
             int numSelectedChildrenRC = 0;
             if (parentStatementVO.getStatementVOCount() > 0) {
                 for (StatementVO subStatementVO : 
                     parentStatementVO.getStatementVOs()) {
                     if (subStatementVO.isWrapperStatementVO() &&
                             subStatementVO.getReqComponentVOs().get(0).isCheckBoxOn()) {
                         numSelectedChildren++;
                     } else if (subStatementVO.isCheckBoxOn()) {
                         numSelectedChildren++;
                     }
                 }
             } else if (parentStatementVO.getReqComponentVOCount() > 0) {
                 for (ReqComponentVO rcVO : parentStatementVO.getReqComponentVOs()) {
                     if (rcVO.isCheckBoxOn()) {
                         numSelectedChildren++;
                         numSelectedChildrenRC++;
                     }
                 }
             }
             if (parentStatementVO.getChildCount() - numSelectedChildren > 1) {
                 degroupAble = degroupAble && true;
             } else if (numSelectedChildrenRC == parentStatementVO.getChildCount()) {
                 degroupAble = degroupAble && true;
             } else if (parentStatementVO == this.statementVO && parentStatementVO.getStatementVOCount() == 0) {
                 degroupAble = degroupAble && true;
             } else {
                 degroupAble = false;
             }
         }
         return degroupAble;
     }
     
     public void deleteItem() {
         List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
         List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
 
         if (!statementVOIsDegroupAble(selectedStatementVOs, selectedReqComponentVOs)) return;
 
         // remove the selected RCs
         for (ReqComponentVO selectedReqComponent : selectedReqComponentVOs) {
             StatementVO parentStatementVO = null;
             parentStatementVO = this.statementVO.getEnclosingStatementVO(this.statementVO, selectedReqComponent);
             parentStatementVO.removeReqComponentVO(selectedReqComponent);
         }
 
         // remove the selected operator cells/statements.
         for (StatementVO selectedStatement : selectedStatementVOs) {
             StatementVO parentStatementVO = null; 
             parentStatementVO = this.statementVO.getParentStatementVO(this.statementVO, selectedStatement);
             
             if (selectedStatement == statementVO) {
                 statementVO = null;
             } else if (parentStatementVO != null) {
                 parentStatementVO.removeStatementVO(selectedStatement);
                 if (selectedStatement.getStatementVOCount() > 0) {
                     for (StatementVO subStatement : selectedStatement.getStatementVOs()) {
                         parentStatementVO.addStatementVO(subStatement);
                     }
                 } else if (selectedStatement.getReqComponentVOCount() > 0) {
                     for (ReqComponentVO leafReqComponent : selectedStatement.getReqComponentVOs()) {
                         parentStatementVO.addReqComponentVO(leafReqComponent);
                     }
                 }
             }
         }
 
         // clears off the root if the root no longer has any children after the deletions
      //   if (statementVO.getChildCount() == 0) {
      //       statementVO = null;
      //   }
     }
 
     public boolean isAddToGroupOK() {
         List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
         List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
         return isAddToGroupOK(selectedStatementVOs, selectedReqComponentVOs);
     }
 
     private boolean isAddToGroupOK(List<StatementVO> selectedStatementVOs, List<ReqComponentVO> selectedReqComponentVOs) {
         int numSelectedS = (selectedStatementVOs == null)? 0 : selectedStatementVOs.size();
         int numSelectedRC = (selectedReqComponentVOs == null)? 0 : selectedReqComponentVOs.size();
         // one or more rules are selected as well as a single AND or OR cell
         return (numSelectedS == 1 && numSelectedRC > 0);
     }
     
     public void addToGroup() {
         List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
         List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
         StatementVO selectedS = null;
 
         if (!isAddToGroupOK(selectedStatementVOs, selectedReqComponentVOs)) return;
 
         selectedS = selectedStatementVOs.get(0);
         if (selectedReqComponentVOs != null && !selectedReqComponentVOs.isEmpty()) {
             for (ReqComponentVO selectedRC : selectedReqComponentVOs) {
                 StatementVO parentS = this.statementVO.getEnclosingStatementVO(this.statementVO, selectedRC);
                 if (parentS == null) continue;
 
                 parentS.removeReqComponentVO(selectedRC);
                 // The following if else statement cleans up parent statements that
                 // has no more children other than the selectedS
                 if (parentS.getChildCount() == 1 &&
                         parentS.getSelectedStatementVOs() != null &&
                         parentS.getSelectedStatementVOs().contains(selectedS)) {
                     // if parent is root replace the current root with the selected statement.
                     // otherwise remove the parent from grand parent and add the selected statement
                     if (parentS == statementVO) {
                         this.statementVO = selectedS;
                     } else {
                         StatementVO grandParentS = this.statementVO.getParentStatementVO(this.statementVO, parentS);
                         grandParentS.removeStatementVO(parentS);
                         grandParentS.addStatementVO(selectedS);
                     }
                 }
                 selectedS.addReqComponentVO(selectedRC);
             }
             statementVO.simplify();
         }
     }
     
     public List<StatementVO> getSelectedStatementVOs() {
         return (statementVO == null)? null : statementVO.getSelectedStatementVOs();
     }
     
     public List<ReqComponentVO> getSelectedReqComponentVOs() {
         return (statementVO == null)? null : statementVO.getSelectedReqComponentVOs();
     }
 
     public StatementVO getStatementVO() {
         return statementVO;
     }
 
     public void setStatementVO(StatementVO statementVO) {
         this.statementVO = statementVO;
     }
     
     public String getExpression() {
         return (statementVO == null)? null : statementVO.convertToExpression();
     }
 
     public boolean isSimplifying() {
         return simplifying;
     }
 
     public void setSimplifying(boolean simplifying) {
         this.simplifying = simplifying;
     }
 
     public String getStatementTypeKey() {
         String statementType = (statementVO == null || statementVO.getStatementInfo() == null)? null :
             statementVO.getStatementInfo().getType();
             return statementType;
     }
 }

1		/**
2		* Copyright 2010 The Kuali Foundation Licensed under the
3		* Educational Community License, Version 2.0 (the "License"); you may
4		* not use this file except in compliance with the License. You may
5		* obtain a copy of the License at
6		*
7		* http://www.osedu.org/licenses/ECL-2.0
8		*
9		* Unless required by applicable law or agreed to in writing,
10		* software distributed under the License is distributed on an "AS IS"
11		* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
12		* or implied. See the License for the specific language governing
13		* permissions and limitations under the License.
14		*/
15
16		package org.kuali.student.core.statement.ui.client.widgets.rules;
17
18		import java.util.List;
19
20		import org.kuali.student.core.statement.dto.StatementInfo;
21		import org.kuali.student.core.statement.dto.StatementOperatorTypeKey;
22		import org.kuali.student.core.statement.ui.client.widgets.table.Node;
23
24		public class RuleInfo {
25
26		private StatementVO statementVO; //top-level statement (tree ROOT)
27		private EditHistory editHistory;
28		private boolean simplifying;
29
30	0	public RuleInfo() {
31	0	setEditHistory(new EditHistory(statementVO));
32	0	setStatementVO(createNewStatementVO());
33	0	}
34
35		public StatementVO createNewStatementVO() {
36	0	StatementInfo newStatementTree = new StatementInfo();
37	0	newStatementTree.setOperator(StatementOperatorTypeKey.AND);
38	0	newStatementTree.setType(getStatementTypeKey());
39	0	StatementVO statementVO = new StatementVO();
40	0	statementVO.setStatementInfo(newStatementTree);
41	0	return statementVO;
42		}
43
44		public Node getStatementTree() {
45	0	return (statementVO != null ? statementVO.getTree() : null);
46		}
47
48		public EditHistory getEditHistory() {
49	0	return editHistory;
50		}
51
52		public void setEditHistory(EditHistory editHistory) {
53	0	this.editHistory = editHistory;
54	0	}
55
56		private boolean statementVOIsGroupAble(List<StatementVO> selectedStatementVOs, List<ReqComponentVO> selectedReqComponentVOs) {
57	0	boolean orable = false;
58	0	StatementVO enclosingStatement = null;
59	0	boolean reqComponentsInSameGroup = true;
60	0	int numStatementsSelection = (selectedStatementVOs == null)? 0 : selectedStatementVOs.size();
61	0	int numReqComponentSelection = (selectedReqComponentVOs == null)? 0 : selectedReqComponentVOs.size();
62	0	int numSelection = numStatementsSelection + numReqComponentSelection;
63
64		// At least 2 items (StatementVO or RC) must be selected.
65	0	if (numSelection >= 2) {
66	0	if (numStatementsSelection > 0) {
67	0	enclosingStatement = this.statementVO.getParentStatementVO(this.statementVO, selectedStatementVOs.get(0));
68		} else {
69	0	enclosingStatement = this.statementVO.getEnclosingStatementVO(this.statementVO, selectedReqComponentVOs.get(0));
70		}
71
72	0	if (numStatementsSelection > 0) {
73	0	for (StatementVO selectedStatementVO : selectedStatementVOs) {
74	0	StatementVO enclosingStatement2 = this.statementVO.getParentStatementVO(this.statementVO, selectedStatementVO);
75	0	if (enclosingStatement != enclosingStatement2) {
76	0	reqComponentsInSameGroup = false;
77	0	break;
78		}
79	0	}
80		}
81	0	if (numReqComponentSelection > 0) {
82	0	for (ReqComponentVO selectedReqCompoentVO : selectedReqComponentVOs) {
83	0	StatementVO enclosingStatement2 = this.statementVO.getEnclosingStatementVO(this.statementVO, selectedReqCompoentVO);
84	0	if (enclosingStatement != enclosingStatement2) {
85	0	reqComponentsInSameGroup = false;
86	0	break;
87		}
88	0	}
89		}
90
91		// the items selected must all belong to the same group
92	0	if (!reqComponentsInSameGroup) return false;
93
94	0	int childCount = (enclosingStatement == null)? 0 : enclosingStatement.getChildCount();
95
96		// number of selected requirement components must be less the the total number of
97		// requirement components of the enclosing statement
98	0	if (selectedReqComponentVOs != null && !selectedReqComponentVOs.isEmpty() && childCount > numSelection) {
99	0	orable = true;
100		} else {
101	0	orable = false;
102		}
103	0	} else {
104	0	orable = false;
105		}
106
107	0	return orable;
108		}
109
110		public boolean statementVOIsGroupAble() {
111	0	List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
112	0	List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
113	0	return statementVOIsGroupAble(selectedStatementVOs, selectedReqComponentVOs);
114		}
115
116		public void insertOR() {
117	0	List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
118	0	List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
119
120		// check if the selections can be grouped by OR operator.
121	0	if (!statementVOIsGroupAble(selectedStatementVOs, selectedReqComponentVOs)) return;
122	0	StatementVO enclosingStatementVO = statementVO.getEnclosingStatementVO(statementVO, selectedReqComponentVOs.get(0));
123
124		// create new statement to hold the new OR group
125	0	StatementVO newStatementVO = createNewStatementVO();
126	0	StatementInfo newLuStatementInfo = newStatementVO.getStatementInfo();
127	0	newLuStatementInfo.setOperator(StatementOperatorTypeKey.OR);
128	0	newStatementVO.setStatementInfo(newLuStatementInfo);
129
130		// remove the selected RCs from original statement and move them into the new StatementVO
131	0	for (ReqComponentVO selectedReqComponentVO : selectedReqComponentVOs) {
132	0	enclosingStatementVO.removeReqComponentVO(selectedReqComponentVO);
133	0	newStatementVO.addReqComponentVO(selectedReqComponentVO);
134		}
135
136		// remove the selected StatementVOs from original statement and move them into the new StatementVO
137	0	for (StatementVO selectedStatementVO : selectedStatementVOs) {
138	0	enclosingStatementVO.removeStatementVO(selectedStatementVO);
139	0	newStatementVO.addStatementVO(selectedStatementVO);
140		}
141	0	enclosingStatementVO.addStatementVO(newStatementVO);
142	0	}
143
144		public void insertAND() {
145	0	List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
146	0	List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
147
148		// check if the selections can be grouped by OR operator.
149	0	if (!statementVOIsGroupAble(selectedStatementVOs, selectedReqComponentVOs)) return;
150
151	0	StatementVO enclosingStatementVO = statementVO.getEnclosingStatementVO(statementVO, selectedReqComponentVOs.get(0));
152		// create new statement to hold the new OR group
153	0	StatementVO newStatementVO = createNewStatementVO();
154	0	StatementInfo newLuStatementInfo = newStatementVO.getStatementInfo();
155	0	newLuStatementInfo.setOperator(StatementOperatorTypeKey.AND);
156	0	newStatementVO.setStatementInfo(newLuStatementInfo);
157
158		// remove the selected RCs from original statement and move them into the new StatementVO
159	0	for (ReqComponentVO selectedReqComponentVO : selectedReqComponentVOs) {
160	0	enclosingStatementVO.removeReqComponentVO(selectedReqComponentVO);
161	0	newStatementVO.addReqComponentVO(selectedReqComponentVO);
162		}
163
164		// remove the selected StatementVOs from original statement and move them into the new StatementVO
165	0	for (StatementVO selectedStatementVO : selectedStatementVOs) {
166	0	enclosingStatementVO.removeStatementVO(selectedStatementVO);
167	0	newStatementVO.addStatementVO(selectedStatementVO);
168		}
169
170	0	enclosingStatementVO.addStatementVO(newStatementVO);
171	0	}
172
173		public boolean statementVOIsDegroupAble() {
174	0	List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
175	0	List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
176	0	return statementVOIsDegroupAble(selectedStatementVOs, selectedReqComponentVOs);
177		}
178
179		private boolean statementVOIsDegroupAble(List<StatementVO> selectedStatementVOs, List<ReqComponentVO> selectedReqComponentVOs) {
180	0	boolean degroupAble = false;
181	0	boolean selectedRootStatementVO = false;
182	0	boolean otherItemsExist = false;
183
184		// at least one item is selected
185	0	if ((selectedStatementVOs != null && !selectedStatementVOs.isEmpty()) \|\|
186		(selectedReqComponentVOs != null && !selectedReqComponentVOs.isEmpty())) {
187	0	degroupAble = true;
188		} else {
189	0	return false;
190		}
191
192		// root statement should not be selected if there are other items.
193	0	for (StatementVO selectedStatement : selectedStatementVOs) {
194	0	if (selectedStatement == this.statementVO) {
195	0	selectedRootStatementVO = true;
196	0	break;
197		}
198		}
199
200	0	otherItemsExist = this.statementVO.getChildCount() > 0;
201	0	if (selectedRootStatementVO && otherItemsExist) {
202	0	degroupAble = degroupAble && false;
203		} else{
204	0	degroupAble = degroupAble && true;
205		}
206
207		// must leave at least 2 children in a group unselected or all children are RCs and are selected.
208		// Except for root. For root, if root statement does not have any sub statements then it is okay to delete
209	0	for (ReqComponentVO selectedRC : selectedReqComponentVOs) {
210	0	StatementVO parentStatementVO = this.statementVO.getEnclosingStatementVO(this.statementVO, selectedRC);
211	0	int numSelectedChildren = 0;
212	0	int numSelectedChildrenRC = 0;
213	0	if (parentStatementVO.getStatementVOCount() > 0) {
214		for (StatementVO subStatementVO :
215	0	parentStatementVO.getStatementVOs()) {
216	0	if (subStatementVO.isWrapperStatementVO() &&
217		subStatementVO.getReqComponentVOs().get(0).isCheckBoxOn()) {
218	0	numSelectedChildren++;
219	0	} else if (subStatementVO.isCheckBoxOn()) {
220	0	numSelectedChildren++;
221		}
222		}
223	0	} else if (parentStatementVO.getReqComponentVOCount() > 0) {
224	0	for (ReqComponentVO rcVO : parentStatementVO.getReqComponentVOs()) {
225	0	if (rcVO.isCheckBoxOn()) {
226	0	numSelectedChildren++;
227	0	numSelectedChildrenRC++;
228		}
229		}
230		}
231	0	if (parentStatementVO.getChildCount() - numSelectedChildren > 1) {
232	0	degroupAble = degroupAble && true;
233	0	} else if (numSelectedChildrenRC == parentStatementVO.getChildCount()) {
234	0	degroupAble = degroupAble && true;
235	0	} else if (parentStatementVO == this.statementVO && parentStatementVO.getStatementVOCount() == 0) {
236	0	degroupAble = degroupAble && true;
237		} else {
238	0	degroupAble = false;
239		}
240	0	}
241	0	return degroupAble;
242		}
243
244		public void deleteItem() {
245	0	List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
246	0	List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
247
248	0	if (!statementVOIsDegroupAble(selectedStatementVOs, selectedReqComponentVOs)) return;
249
250		// remove the selected RCs
251	0	for (ReqComponentVO selectedReqComponent : selectedReqComponentVOs) {
252	0	StatementVO parentStatementVO = null;
253	0	parentStatementVO = this.statementVO.getEnclosingStatementVO(this.statementVO, selectedReqComponent);
254	0	parentStatementVO.removeReqComponentVO(selectedReqComponent);
255	0	}
256
257		// remove the selected operator cells/statements.
258	0	for (StatementVO selectedStatement : selectedStatementVOs) {
259	0	StatementVO parentStatementVO = null;
260	0	parentStatementVO = this.statementVO.getParentStatementVO(this.statementVO, selectedStatement);
261
262	0	if (selectedStatement == statementVO) {
263	0	statementVO = null;
264	0	} else if (parentStatementVO != null) {
265	0	parentStatementVO.removeStatementVO(selectedStatement);
266	0	if (selectedStatement.getStatementVOCount() > 0) {
267	0	for (StatementVO subStatement : selectedStatement.getStatementVOs()) {
268	0	parentStatementVO.addStatementVO(subStatement);
269		}
270	0	} else if (selectedStatement.getReqComponentVOCount() > 0) {
271	0	for (ReqComponentVO leafReqComponent : selectedStatement.getReqComponentVOs()) {
272	0	parentStatementVO.addReqComponentVO(leafReqComponent);
273		}
274		}
275		}
276	0	}
277
278		// clears off the root if the root no longer has any children after the deletions
279		// if (statementVO.getChildCount() == 0) {
280		// statementVO = null;
281		// }
282	0	}
283
284		public boolean isAddToGroupOK() {
285	0	List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
286	0	List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
287	0	return isAddToGroupOK(selectedStatementVOs, selectedReqComponentVOs);
288		}
289
290		private boolean isAddToGroupOK(List<StatementVO> selectedStatementVOs, List<ReqComponentVO> selectedReqComponentVOs) {
291	0	int numSelectedS = (selectedStatementVOs == null)? 0 : selectedStatementVOs.size();
292	0	int numSelectedRC = (selectedReqComponentVOs == null)? 0 : selectedReqComponentVOs.size();
293		// one or more rules are selected as well as a single AND or OR cell
294	0	return (numSelectedS == 1 && numSelectedRC > 0);
295		}
296
297		public void addToGroup() {
298	0	List<StatementVO> selectedStatementVOs = getSelectedStatementVOs();
299	0	List<ReqComponentVO> selectedReqComponentVOs = getSelectedReqComponentVOs();
300	0	StatementVO selectedS = null;
301
302	0	if (!isAddToGroupOK(selectedStatementVOs, selectedReqComponentVOs)) return;
303
304	0	selectedS = selectedStatementVOs.get(0);
305	0	if (selectedReqComponentVOs != null && !selectedReqComponentVOs.isEmpty()) {
306	0	for (ReqComponentVO selectedRC : selectedReqComponentVOs) {
307	0	StatementVO parentS = this.statementVO.getEnclosingStatementVO(this.statementVO, selectedRC);
308	0	if (parentS == null) continue;
309
310	0	parentS.removeReqComponentVO(selectedRC);
311		// The following if else statement cleans up parent statements that
312		// has no more children other than the selectedS
313	0	if (parentS.getChildCount() == 1 &&
314		parentS.getSelectedStatementVOs() != null &&
315		parentS.getSelectedStatementVOs().contains(selectedS)) {
316		// if parent is root replace the current root with the selected statement.
317		// otherwise remove the parent from grand parent and add the selected statement
318	0	if (parentS == statementVO) {
319	0	this.statementVO = selectedS;
320		} else {
321	0	StatementVO grandParentS = this.statementVO.getParentStatementVO(this.statementVO, parentS);
322	0	grandParentS.removeStatementVO(parentS);
323	0	grandParentS.addStatementVO(selectedS);
324		}
325		}
326	0	selectedS.addReqComponentVO(selectedRC);
327	0	}
328	0	statementVO.simplify();
329		}
330	0	}
331
332		public List<StatementVO> getSelectedStatementVOs() {
333	0	return (statementVO == null)? null : statementVO.getSelectedStatementVOs();
334		}
335
336		public List<ReqComponentVO> getSelectedReqComponentVOs() {
337	0	return (statementVO == null)? null : statementVO.getSelectedReqComponentVOs();
338		}
339
340		public StatementVO getStatementVO() {
341	0	return statementVO;
342		}
343
344		public void setStatementVO(StatementVO statementVO) {
345	0	this.statementVO = statementVO;
346	0	}
347
348		public String getExpression() {
349	0	return (statementVO == null)? null : statementVO.convertToExpression();
350		}
351
352		public boolean isSimplifying() {
353	0	return simplifying;
354		}
355
356		public void setSimplifying(boolean simplifying) {
357	0	this.simplifying = simplifying;
358	0	}
359
360		public String getStatementTypeKey() {
361	0	String statementType = (statementVO == null \|\| statementVO.getStatementInfo() == null)? null :
362		statementVO.getStatementInfo().getType();
363	0	return statementType;
364		}
365		}