adminmgr.java

实现了Jms的服务器源码,支持多种适配器,DB,FTP,支持多种数据库

     */
    private void onlineConnect(ActionEvent evt) {
        try {
            // if online.
            new OnlineConnection(this);
            setConnected(true, "Connected - Online Mode");
        } catch (Exception err) {
            JOptionPane.showMessageDialog
                (this, err.getMessage(), "Online Connection Error",
                    JOptionPane.ERROR_MESSAGE);
        }
    }


    /**
     * Connect to the database in offline mode. This action causes
     * the file chooser to be displayed, and the user must select an existing
     * database, or enter a new name to create a new database.
     *
     * All databases are suffixed with a ".db".
     *
     * @param evt The event that triggered this operation.
     *
     */
    private void offlineConnect(ActionEvent evt) {
        try {
            // if online.
            new OfflineConnection(this);
            setConnected(true, "Connected - OFFLine Mode");
        } catch (Exception err) {
            JOptionPane.showMessageDialog
                (this, err.getMessage(), "Database Error",
                    JOptionPane.ERROR_MESSAGE);
        }
    }

    /**
     * Disconnect from a connected OpenJMSServer. Close the database, set the
     * connected flag to false, stop displaying the OpenJMS folder.
     *
     * @param evt The event that triggered this operation.
     *
     */
    private void disconnect(ActionEvent evt) {
        try {
            AdminConnection.instance().close();
            setConnected(false, null);
        } catch (Exception e) {
            JOptionPane.showMessageDialog
                (this, e.getMessage(), "Database Close Error",
                    JOptionPane.ERROR_MESSAGE);
        }
    }

    /**
     * A conveniance routine to open/close all database connections,
     * and fix up the display.
     *
     * <P>When disconnecting, turn off the root, destroy all Gui objects
     * close the db connection, turn off all context sensitive menus,
     * disable disconnection menu and enable connection. Set the message
     * text to disconnected.
     *
     * @param c a flag inidication if this is a connection or disconnection.
     *
     */

    private void setConnected(boolean c, String st) {
        if (c) {
            serverProperties_.setRootVisible(true);
            ((OpenJMSServer)
                (serverProperties_.getModel().getRoot())).displayContexts();
            connections_.setEnabled(false);
            refresh_.setEnabled(true);
            disconnect_.setEnabled(true);
            messageArea_.setForeground(java.awt.Color.green.darker().darker());
            messageArea_.setText(st);
            connected_ = true;
        } else {
            serverProperties_.setRootVisible(false);
            OpenJMSServer root =
                (OpenJMSServer) serverProperties_.getModel().getRoot();
            root.removeAllChildren();
            DefaultTreeModel model =
                (DefaultTreeModel) serverProperties_.getModel();
            model.nodeStructureChanged((DefaultMutableTreeNode) root);
            connections_.setEnabled(true);
            refresh_.setEnabled(false);
            disconnect_.setEnabled(false);
            messageArea_.setForeground(java.awt.Color.red);
            messageArea_.setText("Not Connected");
            connected_ = false;
        }
    }


    /**
     * Set up all Action menu callbacks, and mouse events for the tree and its
     * nodes. Check all mose 2 key presses on a node, select the node,
     * then call the nodes appropriate display methos to display its
     * specific popup menus.
     *
     */
    private void setupCallbacks() {

        addWindowListener(new WindowAdapter() {

            public void windowClosing(WindowEvent evt) {
                exitForm(evt);
            }
        }
        );


        serverProperties_.addMouseListener(new MouseAdapter() {

            public void mousePressed(MouseEvent e) {
                if (!connected_) {
                    return;
                }

                if (SwingUtilities.isRightMouseButton(e)) {
                    int selRow = serverProperties_.getRowForLocation
                        (e.getX(), e.getY());

                    serverProperties_.setSelectionRow(selRow);
                    Object loc =
                        serverProperties_.getLastSelectedPathComponent();
                    if (loc instanceof OpenJMSNode) {
                        OpenJMSNode node = (OpenJMSNode) loc;
                        node.displayCommands
                            (serverProperties_.getRowBounds(selRow));
                    } else if (loc instanceof OpenJMSServer) {
                        ((OpenJMSServer) loc).displayCommands
                            (serverProperties_.getRowBounds(selRow));
                    }
                }
            }
        }
        );

        serverProperties_.addTreeExpansionListener(new TreeExpansionListener() {

            public void treeCollapsed(TreeExpansionEvent e) {
                // todo Anything.....
            }

            public void treeExpanded(TreeExpansionEvent e) {
                TreePath path = e.getPath();
                Object loc = path.getLastPathComponent();
                if (loc instanceof OpenJMSNode) {
                    OpenJMSNode node = (OpenJMSNode) loc;
                    node.update();
                }
            }
        }
        );

        exit_.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent evt) {
                exitAdmin(evt);
            }
        }
        );


        refresh_.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent evt) {
                refresh(evt);
            }
        }
        );


        online_.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent evt) {
                onlineConnect(evt);
            }
        }
        );

        offline_.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent evt) {
                offlineConnect(evt);
            }
        }
        );

        disconnect_.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent evt) {
                disconnect(evt);
            }
        }
        );

    }


    /**
     * The main entry point for this admin gui.
     * The main form and any support dialogs are created.
     * An initial size is given, and the gui placed in the middle of the screen
     *
     * @param args the command line arguments
     *
     */
    public static void main(String args[]) {
        try {
            CommandLine cmdline = new CommandLine(args);
            if (cmdline.exists("help")) {
                // print the usage information
                usage();
            } else if (cmdline.exists("config")) {
                ConfigurationManager.setConfig(cmdline.value("config"));
                Configuration config = ConfigurationManager.getConfig();

                AdminMgr admin = new AdminMgr();
                QueryDialog.create(admin);
                ObjectDialog.create(admin);
                Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
                // About center of screen
                admin.setLocation(screen.width / 2 - 150, screen.height / 2 - 150);
                admin.setSize(300, 300);
                admin.invalidate();
                admin.show();
            } else {
                // anything else print the usage message
                usage();
            }
        } catch (Exception err) {
            err.printStackTrace();
            System.err.println("Failed to initialize JNDI AdminMgr.\nExiting....");
        }
    }

    /**
     * Print out information on running this sevice
     */
    static protected void usage() {
        PrintStream out = System.out;

        out.println("\n\n");
        out.println("=====================================================");
        out.println("Usage information for org.exolab.jms." +
            "jndiadministration.AdminMgr");
        out.println("=====================================================");
        out.println("\norg.exolab.jms.jndiadministration.AdminMgr");
        out.println("    [-help | -config <xml config file>]\n");
        out.println("\t-help   displays this screen\n");
        out.println("\t-config file name of xml-based config file\n");
    }

} // End AdminMgr