logviewerdialog.java

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    private void clearHandler() {
        int result = JOptionPane.showConfirmDialog(null, resources.getString("sureClearLog"), resources.getString("clearLogs"),
                JOptionPane.YES_NO_OPTION);

        if (result == 0) {
            if (caller != null) {
                caller.closeLog();
                caller.startLog();
            }

            for (int i = 0; i < fileList.length; i++) {
                fileList[i].delete();
            }
            DialogTracker.removeDialog(this);
        }
    }


    /**
     *  Returns a list of all available log entries
     *
     */
    private void loadLogFiles() {
        if (!logDirectoryFile.isDirectory()) {
            return;
        }

        // opens the directory and lists the files
        fileList = logDirectoryFile.listFiles(new LogFileFilter());

        logView.setText("");
        Arrays.sort(fileList, Collections.reverseOrder());

        if (!searchField.getText().equals("")) {
            ArrayList list = new ArrayList();
            for (int i = 0; i < fileList.length; i++) {
                if (fileContainsText(fileList[i], searchField.getText())) {
                    list.add(fileList[i]);
                }
            }

            fileList = (File[]) list.toArray(new File[list.size()]);
        }

        if (fileList.length == 0) {
            logView.setText("No logs found");
            model.setLogs(fileList);
            validate();
            return;
        }

        logView.append(getFileContents(fileList[0]));

        new java.util.Timer().schedule(new Scroller(logView.getTextPane()), 100);

        logList.setSelectedIndex(0);
        model.setLogs(fileList);
        validate();
    }


    /**
     *  Description of the Class
     *
     *@author     synic
     *@created    April 20, 2005
     */
    class SearchActionListener implements ActionListener {
        /**
         *  Description of the Method
         *
         *@param  e  Description of the Parameter
         */
        public void actionPerformed(ActionEvent e) {
            loadLogFiles();
        }
    }

    private String getFileContents(File file)
    {
        String html = "";
        try {
            FileInputStream in = new FileInputStream(file);
            byte[] contents = new byte[in.available()];
            in.read(contents);
            in.close();
            String logEnc =
                    Settings.getInstance().getProperty("keepLogsEncoding");
            try {
                if (logEnc != null) {
                    html = new String(contents, logEnc);
                } else {
                    html = new String(contents);
                }
            } catch (UnsupportedEncodingException ex) {
            } catch (NullPointerException ex) {
            }

        } catch (FileNotFoundException fnfe) {
        } catch (IOException ioe) {
        }

        return html;
    }

    /**
     *  Description of the Method
     *
     *@param  file  Description of the Parameter
     *@param  text  Description of the Parameter
     *@return       Description of the Return Value
     */
    private boolean fileContainsText(File file, String text) {
        text = text.toLowerCase();
        String html = getFileContents(file);
        html = html.toLowerCase();
        if (html.indexOf(text) > -1) {
            return true;
        } else {
            return false;
        }
    }


    /**
     *  The model that represents the list of buddies in the room
     *
     *@author     Adam Olsen
     *@created    April 20, 2005
     *@version    1.0
     */
    class LogListModel extends AbstractListModel {
        private Vector logs = new Vector();


        /**
         *  Sets the logs attribute of the LogListModel object
         *
         *@param  list  The new logs value
         */
        public void setLogs(File[] list) {
            logs.clear();
            for (int i = 0; i < list.length; i++) {
                logs.add(list[i]);
            }

            fireChanged();
        }


        /**
         *@return    the number of elements in the list
         */
        public int getSize() {
            return logs.size();
        }


        /**
         *@param  row  the element you want to get
         *@return      the Object at <tt>row</tt>
         */
        public Object getElementAt(int row) {
            return logs.get(row);
        }


        /**
         *@param  log    The feature to be added to the Log attribute
         */
        public void addLog(File log) {
            logs.add(log);
            fireChanged();
        }


        /**
         *  Removes a buddy from the list
         *
         *@param  log  Description of the Parameter
         */
        public void removeLog(File log) {
            logs.remove(log);
            fireChanged();
        }



        /**
         *  Fires a change of the list
         */
        private synchronized void fireChanged() {
            SwingUtilities.invokeLater(
                new Runnable() {
                    public void run() {
                        fireContentsChanged(LogListModel.this, 0, logs.size());
                        logList.validate();
                    }
                });
        }
    }
}

/**
 *  Displays each log entry as a date and time
 *
 *@author     Adam Olsen
 *@created    April 20, 2005
 *@version    1.0
 */

class LogListRenderer extends JLabel implements ListCellRenderer {


    /**
     *  Sets the background to opaque
     */
    public LogListRenderer() {
        setOpaque(true);
    }


    /**
     *  Renders each entry
     *
     *@param  list          Description of the Parameter
     *@param  value         Description of the Parameter
     *@param  index         Description of the Parameter
     *@param  isSelected    Description of the Parameter
     *@param  cellHasFocus  Description of the Parameter
     *@return               The listCellRendererComponent value
     */
    public Component getListCellRendererComponent(JList list, Object value,
            int index, boolean isSelected, boolean cellHasFocus) {
        File file = (File) value;

        String dateString[] = file.toString().replaceAll(
                ".*\\" + File.separatorChar, "")
                .replaceAll("\\.log", "").split("\\-");

        try {
            setText(dateString[1] + "-" + dateString[2] + "-" + dateString[0]
                     + " " + dateString[3] + ":" + dateString[4] + ":"
                     + dateString[5]);
        } catch (Exception e) {
            setText("Invalid Date");
        }

        setBackground(isSelected ? list.getSelectionBackground() : list.getBackground());
        setForeground(isSelected ? list.getSelectionForeground() : list.getForeground());
        list.validate();

        return this;
    }
}

/**
 *  A filter to only accept html files
 *
 *@author     Adam Olsen
 *@created    April 20, 2005
 *@version    1.0
 */

class LogFileFilter implements FileFilter {

    // accept html files

    /**
     *  Description of the Method
     *
     *@param  f  Description of the Parameter
     *@return    Description of the Return Value
     */
    public boolean accept(File f) {
        if (f.isDirectory()) {
            return false;
        }

        if (f.length() <= 0.0) {
            return false;
        }

        String extension = Utils.getExtension(f);

        if (extension != null) {
            if (extension.equals(Utils.log)) {
                return true;
            } else {
                return false;
            }
        }

        return false;
    }
}