package org.exist.client.xacml;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.URI;
import java.net.URISyntaxException;
import javax.swing.BorderFactory;
import javax.swing.ComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.Spring;
import javax.swing.SpringLayout;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import org.exist.client.ClientFrame;
import com.sun.xacml.UnknownIdentifierException;
import com.sun.xacml.combine.CombiningAlgorithm;
import com.sun.xacml.combine.StandardCombiningAlgFactory;
public abstract class PolicyElementEditor extends AbstractNodeEditor implements ActionListener, DocumentListener
{
protected Abbreviator abbrev;
protected PolicyElementNode node;
private JTextField idText;
private JLabel invalidLabel;
private JTextArea descriptionArea;
private JLabel comboLabel;
private JComboBox comboBox;
private JPanel comp;
public PolicyElementEditor()
{
abbrev = new Abbreviator();
setup();
}
public JComponent getComponent()
{
return comp;
}
private void setup()
{
SpringLayout layout = new SpringLayout();
comp = new JPanel(layout);
comp.setBorder(BorderFactory.createEmptyBorder(6,6,6,6));
comp.setOpaque(true);
Spring constant6 = Spring.constant(6);
Spring constant0 = Spring.constant(0);
Spring glue12 = Spring.constant(12,12,Short.MAX_VALUE);
JLabel label = new JLabel("ID: ");
invalidLabel = new JLabel("Invalid URI");
invalidLabel.setForeground(new Color(225, 25, 25));
idText = new JTextField(19);
idText.getDocument().addDocumentListener(this);
idText.setMaximumSize(new Dimension(Short.MAX_VALUE, idText.getPreferredSize().height));
comp.add(label);
comp.add(idText);
comp.add(invalidLabel);
layout.putConstraint(SpringLayout.WEST, idText, constant6, SpringLayout.EAST, label);
layout.putConstraint(SpringLayout.WEST, invalidLabel, constant6, SpringLayout.EAST, idText);
Spring nextY = Spring.max(layout.getConstraint(SpringLayout.SOUTH, idText), layout.getConstraint(SpringLayout.SOUTH, label));
nextY = Spring.sum(nextY, constant6);
comboLabel = new JLabel();
comboBox = new JComboBox();
comboBox.addActionListener(this);
comboBox.setEditable(false);
comp.add(comboLabel);
comp.add(comboBox);
SpringLayout.Constraints constraints = layout.getConstraints(comboLabel);
constraints.setHeight(Spring.max(constraints.getHeight(), layout.getConstraints(comboBox).getHeight()));
layout.putConstraint(SpringLayout.NORTH, comboBox, constant0, SpringLayout.NORTH, comboLabel);
layout.putConstraint(SpringLayout.NORTH, comboLabel, nextY, SpringLayout.NORTH, comp);
layout.putConstraint(SpringLayout.WEST, comboBox, constant6, SpringLayout.EAST, comboLabel);
nextY = layout.getConstraint(SpringLayout.SOUTH, comboBox);
nextY = Spring.max(nextY, layout.getConstraint(SpringLayout.SOUTH, comboLabel));
nextY = Spring.sum(nextY, constant6);
Spring right = layout.getConstraint(SpringLayout.EAST, comboBox);
JLabel descriptionLabel = new JLabel("Description");
descriptionArea = new JTextArea(4, 35);
descriptionArea.setWrapStyleWord(true);
descriptionArea.setLineWrap(true);
descriptionArea.getDocument().addDocumentListener(this);
JScrollPane scroll = new JScrollPane(descriptionArea);
comp.add(descriptionLabel);
comp.add(scroll);
layout.putConstraint(SpringLayout.NORTH, descriptionLabel, nextY, SpringLayout.NORTH, comp);
layout.putConstraint(SpringLayout.WEST, scroll, constant0, SpringLayout.WEST, idText);
Spring idTextWidth = layout.getConstraints(idText).getWidth();
layout.getConstraints(scroll).setWidth(Spring.sum(idTextWidth, idTextWidth));
layout.putConstraint(SpringLayout.NORTH, scroll, constant6, SpringLayout.SOUTH, descriptionLabel);
right = Spring.max(right, layout.getConstraint(SpringLayout.EAST, scroll));
nextY = Spring.sum(layout.getConstraint(SpringLayout.SOUTH, scroll), glue12);
right = Spring.sum(constant6, right);
layout.putConstraint(SpringLayout.SOUTH, comp, nextY, SpringLayout.NORTH, comp);
layout.putConstraint(SpringLayout.EAST, comp, right, SpringLayout.WEST, comp);
}
protected abstract String getComboLabel();
protected abstract ComboBoxModel getComboModel();
protected abstract Object getComboPrototype();
protected void setSelectedItem(Object value)
{
comboBox.setSelectedItem(value);
}
protected Object getSelectedItem()
{
return comboBox.getSelectedItem();
}
public String getDescription()
{
return descriptionArea.getText();
}
public String getIDString()
{
return idText.getText();
}
public URI getID()
{
String IDStr = getIDString();
if(IDStr == null)
return null;
try
{
return new URI(IDStr);
}
catch (URISyntaxException e)
{
ClientFrame.showErrorMessage("Invalid policy ID '" + IDStr + "'", e);
return null;
}
}
public CombiningAlgorithm getAlgorithm()
{
URI algURI = abbrev.getFullCombiningURI((String)comboBox.getSelectedItem(), (node instanceof PolicyNode));
try
{
return StandardCombiningAlgFactory.getInstance().createAlgorithm(algURI);
}
catch (UnknownIdentifierException e)
{
ClientFrame.showErrorMessage("Invalid rule combining algorithm '" + algURI + "'", e);
return null;
}
}
public void setNode(XACMLTreeNode treeNode)
{
if(!(treeNode instanceof PolicyElementNode))
throw new IllegalArgumentException("PolicyElementEditor can only edit PolicyElementNodes");
this.node = (PolicyElementNode)treeNode;
if(node == null)
setValues(null, null);
else
setValues(node.getId(), node.getDescription());
setupCombo();
}
protected void setupCombo()
{
comboLabel.setText(getComboLabel());
comboBox.setModel(getComboModel());
comboBox.setPrototypeDisplayValue(getComboPrototype());
comboBox.setMaximumSize(comboBox.getPreferredSize());
}
protected void setValues(URI id, String description)
{
idText.setText((id == null) ? "" : id.toString());
descriptionArea.setText((description == null) ? "" : description);
}
public void pushChanges()
{
String description = descriptionArea.getText();
node.setDescription((description.length() == 0) ? null : description);
URI id = getId();
if(id != null)
node.setId(id);
}
public URI getId()
{
try
{
return new URI(idText.getText());
}
catch (URISyntaxException e)
{
return null;
}
}
public void changedUpdate(DocumentEvent event)
{
documentUpdated(event);
}
public void insertUpdate(DocumentEvent event)
{
documentUpdated(event);
}
public void removeUpdate(DocumentEvent event)
{
documentUpdated(event);
}
protected void documentUpdated(DocumentEvent event)
{
URI id = getId();
if(id == null)
{
idText.setForeground(Color.red);
invalidLabel.setVisible(true);
}
else
{
idText.setForeground(null);
invalidLabel.setVisible(false);
node.setId(id);
}
fireChanged();
}
public void actionPerformed(ActionEvent event)
{
fireChanged();
}
}