Actionable


1   package hudson.model;
2   
3   import org.kohsuke.stapler.StaplerRequest;
4   import org.kohsuke.stapler.StaplerResponse;
5   
6   import java.util.List  ;
7   import java.util.Vector  ;
8   
9   /**
10   * {@link ModelObject} that can have additional {@link Action}s.
11   *
12   * @author Kohsuke Kawaguchi
13   */
14  public abstract class Actionable extends AbstractModelObject {
15      /**
16       * Actions contributed to this model object.
17       */
18      private List  <Action> actions;
19  
20      /**
21       * Gets actions contributed to this build.
22       *
23       * <p>
24       * A new {@link Action} can be added by {@code getActions().add(...)}.
25       *
26       * @return
27       *      may be empty but never null.
28       */
29      public synchronized List  <Action> getActions() {
30          if(actions==null)
31              actions = new Vector  <Action>();
32          return actions;
33      }
34  
35      public Action getAction(int index) {
36          if(actions==null)   return null;
37          return actions.get(index);
38      }
39  
40      public <T extends Action> T getAction(Class  <T> type) {
41          for (Action a : getActions())
42              if (type.isInstance(a))
43                  return type.cast(a);
44          return null;
45      }
46  
47      public Object   getDynamic(String   token, StaplerRequest req, StaplerResponse rsp) {
48          for (Action a : getActions()) {
49              if(a.getUrlName().equals(token))
50                  return a;
51          }
52          return null;
53      }
54  }
55
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