kalumet-modules/console/src/main/java/org/apache/kalumet/console/app/HomePageWindow.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.kalumet.console.app;

import nextapp.echo2.app.Button;
import nextapp.echo2.app.Extent;
import nextapp.echo2.app.Insets;
import nextapp.echo2.app.Label;
import nextapp.echo2.app.Row;
import nextapp.echo2.app.SplitPane;
import nextapp.echo2.app.TextArea;
import nextapp.echo2.app.TextField;
import nextapp.echo2.app.WindowPane;
import nextapp.echo2.app.event.ActionEvent;
import nextapp.echo2.app.event.ActionListener;
import org.apache.kalumet.FileManipulator;
import org.apache.kalumet.model.Archive;
import org.apache.kalumet.model.JEEApplication;
import org.apache.kalumet.model.JEEApplicationServer;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Iterator;

/**
 * Environment home page window.
 */
public class HomePageWindow
    extends WindowPane
{

    private static final String TEMPLATE_LOCATION =
        "/org/apache/kalumet/console/app/resources/templates/environment-homepage.html";

    private EnvironmentWindow parent;

    private TextArea area;

    private TextField locationField;

    // refresh
    private ActionListener refresh = new ActionListener()
    {
        public void actionPerformed( ActionEvent event )
        {
            HomePageWindow.this.update();
        }
    };

    // close
    private ActionListener close = new ActionListener()
    {
        public void actionPerformed( ActionEvent event )
        {
            HomePageWindow.this.userClose();
        }
    };

    // copy
    private ActionListener copy = new ActionListener()
    {
        public void actionPerformed( ActionEvent event )
        {
            // get the home page location
            String homePageLocation = locationField.getText();
            if ( homePageLocation == null || homePageLocation.trim().length() < 1 )
            {
                KalumetConsoleApplication.getApplication().getLogPane().addWarning(
                    Messages.getString( "homepage.warn.mandatory" ) );
                return;
            }
            FileManipulator fileManipulator = null;
            try
            {
                // init a file manipulator
                fileManipulator = new FileManipulator();
                // write the homepage area in the output stream
                PrintWriter writer = new PrintWriter( fileManipulator.write( homePageLocation ) );
                writer.print( area.getText() );
                writer.flush();
                writer.close();
            }
            catch ( Exception e )
            {
                KalumetConsoleApplication.getApplication().getLogPane().addWarning(
                    Messages.getString( "homepage.warn.error" ) + ": " + e.getMessage() );
                return;
            }
            finally
            {
                if ( fileManipulator != null )
                {
                    fileManipulator.close();
                }
            }
            KalumetConsoleApplication.getApplication().getLogPane().addConfirm(
                Messages.getString( "homepage.generated" ) );
        }
    };

    /**
     * Create environment home page window.
     *
     * @param parent the parent <code>EnvironmentWindow</code>.
     */
    public HomePageWindow( EnvironmentWindow parent )
    {
        super();

        // update parent
        this.parent = parent;

        setTitle( parent.getEnvironmentName() + " " + Messages.getString( "homepage" ) );
        setId( "homepagewindow_" + parent.getEnvironmentName() );
        setStyleName( "default" );
        setWidth( new Extent( 800, Extent.PX ) );
        setHeight( new Extent( 600, Extent.PX ) );
        setModal( false );
        setDefaultCloseOperation( WindowPane.DISPOSE_ON_CLOSE );

        // create a split pane for the control button
        SplitPane splitPane = new SplitPane( SplitPane.ORIENTATION_VERTICAL_BOTTOM_TOP, new Extent( 32 ) );
        add( splitPane );

        // add the control pane
        Row controlRow = new Row();
        controlRow.setStyleName( "control" );
        splitPane.add( controlRow );
        // add the refresh button
        Button refreshButton = new Button( Messages.getString( "reload" ), Styles.DATABASE_REFRESH );
        refreshButton.setStyleName( "control" );
        refreshButton.addActionListener( refresh );
        controlRow.add( refreshButton );
        // add the close button
        Button closeButton = new Button( Messages.getString( "close" ), Styles.CROSS );
        closeButton.setStyleName( "control" );
        closeButton.addActionListener( close );
        controlRow.add( closeButton );

        // add split pane content
        SplitPane content = new SplitPane( SplitPane.ORIENTATION_VERTICAL_BOTTOM_TOP, new Extent( 20 ) );
        splitPane.add( content );

        // add the row location
        Row locationRow = new Row();
        locationRow.setInsets( new Insets( 2 ) );
        locationRow.setCellSpacing( new Extent( 2 ) );
        content.add( locationRow );
        // add the copy location label
        Label copyLocationLabel = new Label( Messages.getString( "location" ) );
        copyLocationLabel.setStyleName( "default" );
        locationRow.add( copyLocationLabel );
        // add the environment homepage location field
        locationField = new TextField();
        locationField.setStyleName( "default" );
        locationField.addActionListener( copy );
        locationRow.add( locationField );
        // add the copy button
        Button copyButton = new Button( Messages.getString( "copy" ), Styles.ACCEPT );
        copyButton.addActionListener( copy );
        locationRow.add( copyButton );

        // add the text area
        area = new TextArea();
        area.setStyleName( "default" );
        area.setWidth( new Extent( 98, Extent.PERCENT ) );
        area.setHeight( new Extent( 98, Extent.PERCENT ) );
        content.add( area );

        // update the pane
        update();
    }

    /**
     * Update the pane.
     */
    protected void update()
    {
        // generate replace strings
        String applications = null;
        for ( Iterator applicationServerIterator =
                  parent.getEnvironment().getJEEApplicationServers().getJEEApplicationServers().iterator();
              applicationServerIterator.hasNext(); )
        {
            JEEApplicationServer applicationServer = (JEEApplicationServer) applicationServerIterator.next();
            for ( Iterator applicationIterator = applicationServer.getJEEApplications().iterator();
                  applicationIterator.hasNext(); )
            {
                JEEApplication application = (JEEApplication) applicationIterator.next();
                for ( Iterator archiveIterator = application.getArchives().iterator(); archiveIterator.hasNext(); )
                {
                    Archive archive = (Archive) archiveIterator.next();
                    applications =
                        applications + "&nbsp; &nbsp; <a href=\"" + archive.getContext() + "\">" + archive.getName()
                            + "</a>";
                }
            }
        }
        // change the values in the template
        BufferedReader templateBufferedReader = new BufferedReader(
            new InputStreamReader( HomePageWindow.class.getResourceAsStream( HomePageWindow.TEMPLATE_LOCATION ) ) );
        StringWriter writer = new StringWriter();
        BufferedWriter buffer = new BufferedWriter( writer );
        try
        {
            String templateLine = templateBufferedReader.readLine();
            while ( templateLine != null )
            {
                buffer.write( templateLine );
                buffer.newLine();
                templateLine = templateBufferedReader.readLine();
            }
            buffer.flush();
        }
        catch ( Exception e )
        {
            KalumetConsoleApplication.getApplication().getLogPane().addWarning(
                Messages.getString( "homepage.error" ) + ": " + e.getMessage() );
            return;
        }
        String template = writer.toString();
        template = template.replaceAll( "ENVIRONMENT_NAME", parent.getEnvironmentName() );
        if ( applications != null )
        {
            template = template.replaceAll( "ENVIRONMENT_APPLICATIONS", applications );
        }
        if ( parent.getEnvironment().getWeblinks() != null )
        {
            template = template.replaceAll( "ENVIRONMENT_WEBLINKS", parent.getEnvironment().getWeblinks() );
        }
        if ( parent.getEnvironment().getNotes() != null )
        {
            template = template.replaceAll( "ENVIRONMENT_NOTES", parent.getEnvironment().getNotes() );
        }
        // update the environment homepage area
        area.setText( template );
    }

}