| 1 | package atg.adapter.gsa; |
| 2 | |
| 3 | import java.lang.reflect.Field; |
| 4 | import java.util.List; |
| 5 | |
| 6 | import org.apache.log4j.Logger; |
| 7 | |
| 8 | /** |
| 9 | * This class uses reflection to allow access to private member variables |
| 10 | * withing a GSA Table class. |
| 11 | * |
| 12 | * @author adamb |
| 13 | */ |
| 14 | public class AccessibleTableColumns { |
| 15 | public Logger mLogger = Logger.getLogger(this.getClass()); |
| 16 | public TableColumns mTableColumns; |
| 17 | |
| 18 | public AccessibleTableColumns(TableColumns pTable) { |
| 19 | mTableColumns = pTable; |
| 20 | } |
| 21 | |
| 22 | // ------------------------ |
| 23 | /** |
| 24 | * Returns the mHead field of the Table class passed to the constructor of |
| 25 | * this class. |
| 26 | * |
| 27 | * @return |
| 28 | */ |
| 29 | public ColumnDefinitionNode getHead() { |
| 30 | String fieldName = "mHead"; |
| 31 | ColumnDefinitionNode node = (ColumnDefinitionNode) getPrivateField(fieldName); |
| 32 | return node; |
| 33 | } |
| 34 | |
| 35 | // ------------------------ |
| 36 | /** |
| 37 | * Returns the mTail field of the Table class passed to the constructor of |
| 38 | * this class. |
| 39 | * |
| 40 | * @return |
| 41 | */ |
| 42 | public ColumnDefinitionNode getTail() { |
| 43 | String fieldName = "mTail"; |
| 44 | ColumnDefinitionNode node = (ColumnDefinitionNode) getPrivateField(fieldName); |
| 45 | return node; |
| 46 | } |
| 47 | |
| 48 | // ------------------------ |
| 49 | /** |
| 50 | * Returns the mPrimaryKeys field of the Table class passed to the constructor of |
| 51 | * this class. |
| 52 | * |
| 53 | * @return |
| 54 | */ |
| 55 | public List getPrimaryKeys() { |
| 56 | String fieldName = "mPrimaryKeys"; |
| 57 | List node = (List) getPrivateField(fieldName); |
| 58 | return node; |
| 59 | } |
| 60 | |
| 61 | //------------------------ |
| 62 | /** |
| 63 | * Returns the mForeignKeys field of the Table class passed to the constructor of |
| 64 | * this class. |
| 65 | * |
| 66 | * @return |
| 67 | */ |
| 68 | public List getForeignKeys() { |
| 69 | String fieldName = "mForeignKeys"; |
| 70 | List node = (List) getPrivateField(fieldName); |
| 71 | return node; |
| 72 | } |
| 73 | |
| 74 | // ------------------------ |
| 75 | /** |
| 76 | * Returns the mMultiColumnName field of the Table class passed to the |
| 77 | * constructor of this class. |
| 78 | * |
| 79 | * @return |
| 80 | */ |
| 81 | public String getMultiColumnName() { |
| 82 | String fieldName = "mMultiColumnName"; |
| 83 | String node = (String) getPrivateField(fieldName); |
| 84 | return node; |
| 85 | } |
| 86 | |
| 87 | // ------------------------ |
| 88 | public Object getPrivateField(String fieldName) { |
| 89 | Field columnDefinitionNode = null; |
| 90 | Object field = null; |
| 91 | try { |
| 92 | columnDefinitionNode = mTableColumns.getClass().getDeclaredField( |
| 93 | fieldName); |
| 94 | columnDefinitionNode.setAccessible(true); |
| 95 | field = columnDefinitionNode.get(mTableColumns); |
| 96 | } catch (SecurityException e) { |
| 97 | mLogger.error(e); |
| 98 | } catch (NoSuchFieldException e) { |
| 99 | mLogger.error(e); |
| 100 | } catch (IllegalArgumentException e) { |
| 101 | mLogger.error(e); |
| 102 | } catch (IllegalAccessException e) { |
| 103 | mLogger.error(e); |
| 104 | } |
| 105 | return field; |
| 106 | } |
| 107 | |
| 108 | } |