UndeployTask


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77  
78  package org.apache.tools.ant.taskdefs.optional.sun.appserv;
79  
80  import org.apache.tools.ant.Project;
81  import org.apache.tools.ant.BuildException;
82  
83  /**
84   * This task undeploys J2EE components from the Sun ONE Application Server 7.  
85   * The following components may be undeployed:
86   *   <ul>
87   *     <li>Enterprise application
88   *     <li>Web application 
89   *     <li>Enterprise Java Bean 
90   *     <li>Enterprise connector 
91   *     <li>Application client   
92   *   </ul>
93   * <p>
94   * The archive is not required to undeploy a component -- only the component 
95   * name and type are required.  The component archive may be used, however, as 
96   * it implies the component name.
97   *
98   * @see    AppServerAdmin
99   * @see    ComponentAdmin
100  * @author Greg Nelson <a HREF="mailto:gn@sun.com">gn@sun.com</a>
101  */
102 public class UndeployTask extends ComponentAdmin {
103     private static final String   UNDEPLOY_COMMAND = "undeploy";
104     LocalStringsManager lsm = new LocalStringsManager();
105     private boolean droptables;  // indicates if drop tables at undeploy of an already
106                                  // deployed application with unmapped CMP beans.
107     private boolean droptablesIsSet = false;
108     private boolean cascade;     // if true, it deletes all the connection pools and
109                                  // connector resources associated with the resource
110                                  // adapter.  If false, the undeploy fails if any
111                                  // pools and resources are still associcated with
112                                  // the resource adapter.
113     private boolean cascadeIsSet = false;
114 
115     protected void checkComponentConfig(Server aServer, Component comp) 
116             throws BuildException {
117         super.checkComponentConfig(aServer, comp);
118 
119         // name must be valid string
120         String   theName = comp.getName();
121         if ((theName == null) || (theName.length() == 0)) {
122             final String   msg = lsm.getString("InvalidComponentName", new Object   [] {theName});
123             throw new BuildException(msg, getLocation());
124         }
125     }
126 
127     /**
128      * Drops tables at undeploy of already deployed application with unmapped
129      * CMP beans.
130      *
131      * @param droptables
132      */
133     public void setDroptables(boolean droptables) {
134         this.droptables = droptables;
135         droptablesIsSet = true;
136     }
137 
138     /**
139      * Set cascade.  If true, it deletse all the connection pools and connector
140      * resources associated with the resource adapter.  If false, the undeploy
141      * fails if any pools and resources are still associated with the resource
142      * adapter.
143      *
144      * @param cascade
145      */
146     public void setCascade(boolean casacde) {
147         this.cascade = cascade;
148         cascadeIsSet = true;
149     }
150 
151     protected String   getCommandString(Server server, Component comp) {
152         StringBuffer   cmdString = new StringBuffer  (UNDEPLOY_COMMAND);
153         cmdString.append(server.getCommandParameters(true));
154         if (comp.getType() != null) {
155             log(lsm.getString("DeprecatedTypeAttribute"), Project.MSG_WARN);
156         }
157         if (droptablesIsSet) {
158             cmdString.append(" --droptables=").append(droptables);
159             droptablesIsSet = false;
160         }
161         if (cascade) {
162             cmdString.append(" --cascade=").append(cascade);
163             cascadeIsSet = false;
164         }
165 
166         // check the value and append target
167         String   lTarget = comp.getTarget();
168         if ((lTarget != null) && (lTarget.length() > 0)) {
169                 cmdString.append(" --target ").append(lTarget);
170         }
171 
172         cmdString.append(" ").append(comp.getName());
173 
174         return cmdString.toString();
175     }
176 }
177
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