hermes.browser.components.WatchTable.java Source code

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Here is the source code for hermes.browser.components.WatchTable.java

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/* 
 * Copyright 2003, 2004, 2005 Colin Crist
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package hermes.browser.components;

import hermes.browser.model.QueueWatchTableModel;
import hermes.browser.model.WatchInfo;
import hermes.util.TextUtils;

import java.awt.Color;
import java.awt.Component;
import java.util.Date;

import javax.swing.JTable;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellRenderer;

import org.apache.commons.lang.time.FastDateFormat;
import org.apache.log4j.Logger;

import com.jidesoft.grid.ExpandablePanel;
import com.jidesoft.grid.HierarchicalTable;

/**
 * @author colincrist@hermesjms.com
 */
public class WatchTable extends HierarchicalTable {
    /**
     * 
     */
    private static final long serialVersionUID = -1072138733454263145L;
    private static final Logger log = Logger.getLogger(WatchTable.class);
    private QueueWatchTableModel watchModel;

    public WatchTable(QueueWatchTableModel model, final boolean showAge) {
        super(model);

        this.watchModel = model;

        DefaultTableCellRenderer dateRenderer = new DefaultTableCellRenderer() {
            /**
            * 
            */
            private static final long serialVersionUID = 2791021835238102467L;
            private FastDateFormat formatter = FastDateFormat.getInstance("EEE, d MMM yyyy HH:mm:ss");

            public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
                    boolean hasFocus, int row, int column) {
                super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);

                if (value == null) {
                    setText("");
                } else if (value instanceof Date) {

                    if (showAge) {
                        super.setText(TextUtils.getAge((Date) value));
                    } else {
                        String strDate = formatter.format((Date) value);

                        super.setText(strDate);

                    }

                }
                return this;
            }

            protected void setValueXXX(Object value) {
                if (value == null) {
                    super.setText("");

                } else if (showAge) {
                    super.setText(TextUtils.getAge((Date) value));
                } else {
                    super.setText(value.toString());

                }
            }
        };

        setDefaultRenderer(Date.class, dateRenderer);

    }

    /**
     * Rows are: Color.RED if an alert level has been breached. Color.ORANGE if
     * an exception has occured gathering the data
     */
    public Component prepareRenderer(TableCellRenderer renderer, int y, int x) {
        final Component rval = super.prepareRenderer(renderer, y, x);
        final int originalY = y;
        y = getActualRowAt(y);

        final WatchInfo info = watchModel.getRow(y);
        Component c = null;

        /*
         * I don't understand this bit - unless I get the actual renderer when the
         * component is an ExpandablePanel the first column shades incorrectly.
         */

        if (rval instanceof ExpandablePanel) {
            ExpandablePanel ep = (ExpandablePanel) rval;
            c = ep.getActualRenderer();
        } else {
            c = rval;
        }

        boolean previousInAlert = info.isInAlert();

        if (info != null) {
            if (info.getE() != null) {
                info.setInAlert(true);
                c.setBackground(new Color(255, 255, 153));
                c.setForeground(Color.BLACK);
            } else if (info.getDepthAlert() != 0 && (info.getDepth() > info.getDepthAlert())) {
                info.setInAlert(true);
                c.setBackground(new Color(255, 204, 153));
                c.setForeground(Color.BLACK);
            } else if (info.getAgeAlert() != 0
                    && (System.currentTimeMillis() - info.getAgeAlert() > info.getAgeAlert())) {
                info.setInAlert(true);
                c.setBackground(new Color(255, 204, 153));
                c.setForeground(Color.BLACK);
            } else if (originalY % 2 == 0 && !isCellSelected(originalY, x)) {
                info.setInAlert(false);
                c.setBackground(Color.LIGHT_GRAY);
                c.setForeground(Color.BLACK);

            } else if (!isCellSelected(originalY, x)) {
                //
                // If not shaded, match the table's background

                info.setInAlert(false);
                c.setBackground(Color.WHITE);
                c.setForeground(Color.BLACK);
            }
        }

        return rval;
    }

}