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Direct Project policy enablement engine
/*
Copyright (c) 2010, NHIN Direct Project
All rights reserved.
Authors:
Greg Meyer [email protected]
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the distribution. Neither the name of the The NHIN Direct Project (nhindirect.org).
nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.nhindirect.policy.tools.policybuild;
import java.awt.BorderLayout;
import java.awt.Color;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import javax.swing.BorderFactory;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import javax.swing.border.BevelBorder;
import javax.swing.border.CompoundBorder;
import javax.swing.border.EmptyBorder;
import javax.swing.border.EtchedBorder;
import javax.swing.border.SoftBevelBorder;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.nhindirect.policy.PolicyLexicon;
import org.nhindirect.policy.PolicyLexiconParser;
import org.nhindirect.policy.PolicyLexiconParserFactory;
import org.nhindirect.policy.PolicyParseException;
import org.nhindirect.policy.tools.policyvalidate.ValidatePanel;
///CLOVER:OFF
/**
* Editor panel for policy builder tool.
* @author Greg Meyuer
* @since 1.0
*/
public class EditorPanel extends JPanel
{
private static final long serialVersionUID = 414048933382044206L;
protected JLabel fileNameLabel;
protected JTextArea policyText;
protected ScheduledExecutorService buildTaskSchedule;
protected Boolean needsBuilding = false;
protected File currentFile;
protected ValidatePanel validatePanel;
public EditorPanel()
{
super();
initUI();
addActions();
buildTaskSchedule = Executors.newSingleThreadScheduledExecutor();
buildTaskSchedule.scheduleAtFixedRate(new BuildTask(), 3, 1, TimeUnit.SECONDS);
}
protected void initUI()
{
setLayout(new BorderLayout());
setBorder(new CompoundBorder(
new SoftBevelBorder(BevelBorder.LOWERED), new EmptyBorder(5,5,5,5)) );
policyText = new JTextArea();
policyText.setLineWrap(true);
policyText.setWrapStyleWord(true);
policyText.setEditable(true);
final JScrollPane scrollPane = new JScrollPane(policyText);
scrollPane.setVerticalScrollBarPolicy(
JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
scrollPane.setBorder(BorderFactory.createEtchedBorder(EtchedBorder.LOWERED));
fileNameLabel = new JLabel("*New File*");
final JPanel reportPanel = new JPanel(new BorderLayout());
reportPanel.add(fileNameLabel, BorderLayout.NORTH);
reportPanel.add(scrollPane, BorderLayout.CENTER);
//this.add(reportPanel, BorderLayout.CENTER);
validatePanel = new ValidatePanel();
validatePanel.setFeedMode(PolicyLexicon.SIMPLE_TEXT_V1, policyText.getDocument());
final JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT,
reportPanel, validatePanel);
splitPane.setDividerLocation(400);
this.add(splitPane, BorderLayout.CENTER);
}
private void addActions()
{
policyText.getDocument().addDocumentListener(new DocumentListener() {
public void insertUpdate(DocumentEvent e)
{
setBuildingNeeded(true);
}
public void removeUpdate(DocumentEvent e)
{
setBuildingNeeded(true);
}
public void changedUpdate(DocumentEvent e)
{
setBuildingNeeded(true);
}
});
}
@SuppressWarnings("deprecation")
public void loadFromFile(File file)
{
try
{
final String text = FileUtils.readFileToString(file);
policyText.setText(text);
currentFile = file;
fileNameLabel.setText(file.getPath());
}
catch (Exception e)
{
e.printStackTrace();
}
}
@SuppressWarnings("deprecation")
public void savePolicyFile()
{
if (currentFile == null)
{
savePolicyFileAs();
return;
}
try
{
FileUtils.writeStringToFile(currentFile, policyText.getText());
}
catch (IOException e)
{
JOptionPane.showMessageDialog(this,"Error saving to file: " + e.getMessage(),
"File Save Error", JOptionPane.ERROR_MESSAGE );
return;
}
}
@SuppressWarnings("deprecation")
public void savePolicyFileAs()
{
final JFileChooser fc = new JFileChooser();
int returnVal = fc.showSaveDialog(this);
if (returnVal == JFileChooser.APPROVE_OPTION)
{
final File selectedFile = fc.getSelectedFile();
if (selectedFile.exists())
{
int selection = JOptionPane.showConfirmDialog(this, "This file already exists. Do you wish to overwrite it?",
"Existing File", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
if (selection == JOptionPane.NO_OPTION)
return;
}
// write the file
try
{
FileUtils.writeStringToFile(selectedFile, policyText.getText());
this.loadFromFile(selectedFile);
}
catch (IOException e)
{
JOptionPane.showMessageDialog(this,"Error saving to file: " + e.getMessage(),
"File Save Error", JOptionPane.ERROR_MESSAGE );
return;
}
}
}
protected class BuildTask implements Runnable
{
protected PolicyLexiconParser parser;
public BuildTask()
{
try
{
parser = PolicyLexiconParserFactory.getInstance(PolicyLexicon.SIMPLE_TEXT_V1);
}
catch (Exception e)
{
}
}
@SuppressWarnings("deprecation")
@Override
public void run()
{
if (isBuildingNeeded())
{
// build
if (!policyText.getText().isEmpty())
{
final InputStream stream = IOUtils.toInputStream(policyText.getText());
try
{
parser.parse(stream);
policyText.setForeground(Color.BLACK);
}
catch (PolicyParseException e)
{
policyText.setForeground(Color.RED);
}
catch (Exception e)
{
e.printStackTrace();
}
IOUtils.closeQuietly(stream);
}
setBuildingNeeded(false);
}
}
}
protected boolean isBuildingNeeded()
{
synchronized(needsBuilding)
{
return needsBuilding;
}
}
protected void setBuildingNeeded(boolean buildingNeeded)
{
synchronized(needsBuilding)
{
needsBuilding = buildingNeeded;
}
}
}
///CLOVER:ON