Rev 33 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
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| 31 | PointedEar | 1 | package ch.ffhs.webE.action; |
| 2 | |||
| 3 | import java.util.ArrayList; |
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| 4 | import java.util.List; |
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| 5 | |||
| 6 | import javax.servlet.http.HttpServletRequest; |
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| 7 | |||
| 8 | import org.apache.struts2.StrutsStatics; |
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| 9 | |||
| 10 | import ch.ffhs.webE.dao.TermDAO; |
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| 11 | import ch.ffhs.webE.dao.TermDAOImpl; |
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| 12 | import ch.ffhs.webE.domain.Term; |
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| 13 | |||
| 14 | import com.opensymphony.xwork2.Action; |
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| 15 | import com.opensymphony.xwork2.ActionContext; |
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| 16 | import com.opensymphony.xwork2.ActionSupport; |
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| 17 | import com.opensymphony.xwork2.ModelDriven; |
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| 18 | |||
| 19 | /** |
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| 20 | * Implements actions applicable to term editing |
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| 21 | * |
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| 22 | * @author Thomas Lahn |
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| 23 | */ |
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| 24 | public class TermAction extends ActionSupport implements ModelDriven<Term> |
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| 25 | { |
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| 26 | private static final long serialVersionUID = -6659925652584240539L; |
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| 27 | |||
| 28 | private Term term = new Term(); |
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| 29 | private List<Term> termList = new ArrayList<Term>(); |
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| 30 | private final TermDAO termDAO = new TermDAOImpl(); |
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| 31 | |||
| 32 | /* |
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| 33 | * (non-Javadoc) |
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| 34 | * |
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| 35 | * @see com.opensymphony.xwork2.ModelDriven#getModel() |
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| 36 | */ |
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| 37 | public Term getModel() |
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| 38 | { |
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| 39 | return this.term; |
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| 40 | } |
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| 41 | |||
| 42 | /** |
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| 43 | * Executes the DB query to save the user |
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| 44 | * |
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| 45 | * @return {@link Action#SUCCESS} |
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| 46 | */ |
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| 47 | public String addOrUpdate() |
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| 48 | { |
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| 49 | this.termDAO.saveOrUpdate(this.term); |
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| 50 | return Action.SUCCESS; |
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| 51 | } |
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| 52 | |||
| 53 | /** |
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| 54 | * DB query for userList |
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| 55 | * |
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| 56 | * @return SUCCESS |
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| 57 | */ |
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| 58 | public String list() |
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| 59 | { |
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| 60 | this.termList = this.termDAO.listTerm(); |
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| 61 | return Action.SUCCESS; |
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| 62 | } |
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| 63 | |||
| 64 | /** |
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| 65 | * @return {@link Action#SUCCESS} if <var>id</var> > 0, {@link Action#ERROR} |
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| 66 | * otherwise |
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| 67 | */ |
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| 68 | public String edit() |
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| 69 | { |
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| 70 | int id = this.getIdParameter(); |
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| 71 | |||
| 72 | if (id > 0) |
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| 73 | { |
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| 74 | this.term = this.termDAO.listTermById(id); |
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| 75 | return Action.SUCCESS; |
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| 76 | } |
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| 77 | else |
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| 78 | { |
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| 79 | return Action.ERROR; |
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| 80 | } |
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| 81 | } |
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| 82 | |||
| 83 | /** |
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| 84 | * Gets the ID Parameter for update / delete requests |
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| 85 | * |
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| 86 | * @return int from the ID request. If not set or wrong, it gives back -1 |
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| 87 | */ |
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| 88 | private int getIdParameter() |
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| 89 | { |
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| 90 | HttpServletRequest request = (HttpServletRequest) ActionContext |
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| 91 | .getContext().get(StrutsStatics.HTTP_REQUEST); |
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| 92 | |||
| 93 | int id = -1; |
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| 94 | try |
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| 95 | { |
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| 96 | id = Integer.parseInt(request.getParameter("id")); //$NON-NLS-1$ |
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| 97 | } |
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| 98 | catch (Exception e) |
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| 99 | { |
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| 100 | /* TODO: Logging - wrong parameter set */ |
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| 101 | } |
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| 102 | |||
| 103 | return id; |
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| 104 | } |
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| 105 | |||
| 106 | /** |
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| 107 | * deletes a user, gets the ID from the "id" parameter that was submitted with |
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| 108 | * the HTTP request |
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| 109 | * |
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| 110 | * @return String - either SUCCESS or ERROR constant |
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| 111 | */ |
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| 112 | public String delete() |
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| 113 | { |
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| 114 | |||
| 115 | int id = this.getIdParameter(); |
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| 116 | |||
| 117 | /* Check for malicious ID values */ |
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| 118 | if (id > 0) |
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| 119 | { |
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| 120 | this.termDAO.deleteTerm(id); |
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| 121 | return Action.SUCCESS; |
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| 122 | } |
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| 123 | else |
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| 124 | { |
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| 125 | return Action.ERROR; |
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| 126 | } |
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| 127 | } |
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| 128 | |||
| 129 | /* |
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| 130 | * Standard getters and setters |
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| 131 | */ |
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| 132 | |||
| 133 | /** |
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| 134 | * @return The term edited with this instance |
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| 135 | */ |
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| 136 | public Term getTerm() |
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| 137 | { |
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| 138 | return this.term; |
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| 139 | } |
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| 140 | |||
| 141 | /** |
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| 142 | * @param term |
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| 143 | * The term edited with this instance |
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| 144 | */ |
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| 145 | public void setTerm(Term term) |
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| 146 | { |
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| 147 | this.term = term; |
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| 148 | } |
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| 149 | |||
| 150 | /** |
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| 151 | * @return The list of terms edited with this instance |
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| 152 | */ |
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| 153 | public List<Term> getTermList() |
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| 154 | { |
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| 155 | return this.termList; |
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| 156 | } |
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| 157 | |||
| 158 | /** |
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| 159 | * @param termList |
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| 160 | * The list of terms edited with this instance |
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| 161 | */ |
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| 162 | public void setTermList(List<Term> termList) |
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| 163 | { |
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| 164 | this.termList = termList; |
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| 165 | } |
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| 166 | } |