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Java > Open Source Codes > org > objectstyle > cayenne > modeler > action > ImportDBAction


1 /* ====================================================================
2  *
3  * The ObjectStyle Group Software License, version 1.1
4  * ObjectStyle Group - http://objectstyle.org/
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6  * Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
7  * of the software. All rights reserved.
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24  * and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
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54  * <http://objectstyle.org/>.
55  */
56 package org.objectstyle.cayenne.modeler.action;
57
58 import java.awt.event.ActionEvent JavaDoc;
59 import java.sql.Connection JavaDoc;
60
61 import org.objectstyle.cayenne.access.DataDomain;
62 import org.objectstyle.cayenne.dba.DbAdapter;
63 import org.objectstyle.cayenne.modeler.Application;
64 import org.objectstyle.cayenne.modeler.dialog.db.ConnectionWizard;
65 import org.objectstyle.cayenne.modeler.dialog.db.DbLoaderHelper;
66 import org.objectstyle.cayenne.modeler.pref.DBConnectionInfo;
67 import org.objectstyle.cayenne.project.ProjectPath;
68
69 /**
70  * Action that imports database structure into a DataMap.
71  */
72 public class ImportDBAction extends DBWizardAction {
73
74     public static String JavaDoc getActionName() {
75         return "Reengineer Database Schema";
76     }
77
78     public ImportDBAction(Application application) {
79         super(getActionName(), application);
80     }
81
82     /**
83      * Connects to DB and delegates processing to DbLoaderController, starting it
84      * asynchronously.
85      */
86     public void performAction(ActionEvent JavaDoc event) {
87
88         // guess node connection
89 DBConnectionInfo nodeInfo = preferredDataSource();
90         String JavaDoc nodeKey = preferredDataSourceLabel(nodeInfo);
91
92         // connect
93 ConnectionWizard connectWizard = new ConnectionWizard(
94                 getProjectController(),
95                 "Reengineer DB Schema: Connect to Database",
96                 nodeKey,
97                 nodeInfo);
98
99         if (!connectWizard.startupAction()) {
100             // canceled
101 return;
102         }
103
104         Connection JavaDoc connection = connectWizard.getConnection();
105         DbAdapter adapter = connectWizard.getAdapter();
106         DBConnectionInfo dataSourceInfo = connectWizard.getConnectionInfo();
107
108         // from here pass control to DbLoaderHelper, running it from a thread separate
109 // from EventDispatch
110
111         final DbLoaderHelper helper = new DbLoaderHelper(
112                 getProjectController(),
113                 connection,
114                 adapter,
115                 dataSourceInfo.getUserName());
116         Thread JavaDoc th = new Thread JavaDoc(new Runnable JavaDoc() {
117
118             public void run() {
119                 helper.execute();
120             }
121         });
122         th.start();
123     }
124
125     /**
126      * Returns <code>true</code> if path contains a DataDomain object.
127      */
128     public boolean enableForPath(ProjectPath path) {
129         if (path == null) {
130             return false;
131         }
132
133         return path.firstInstanceOf(DataDomain.class) != null;
134     }
135 }
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