src/main/java/net/sf/taverna/t2/activities/xpath/ui/config/XPathActivityConfigurationPanelProvider.java - incubator-taverna-workbench-common-activities - Git at Google

 package net.sf.taverna.t2.activities.xpath.ui.config;

 import java.awt.BorderLayout;
 import java.util.ArrayList;
 import java.util.List;

 import javax.swing.BorderFactory;
 import javax.swing.JOptionPane;

 import net.sf.taverna.t2.workbench.ui.views.contextualviews.activity.ActivityConfigurationPanel;

 import net.sf.taverna.t2.activities.xpath.XPathActivity;
 import net.sf.taverna.t2.activities.xpath.XPathActivityConfigurationBean;

 @SuppressWarnings("serial")
 /**
  *
  * @author Sergejs Aleksejevs
  */
 public class XPathActivityConfigurationPanelProvider
 		extends
 		ActivityConfigurationPanel<XPathActivity, XPathActivityConfigurationBean> {
 	private XPathActivity activity;
 	private XPathActivityConfigurationBean configBean;

 	private XPathActivityConfigurationPanel configPanel;

 	public XPathActivityConfigurationPanelProvider(XPathActivity activity) {
 		this.activity = activity;
 		initGui();
 	}

 	protected void initGui() {
 		removeAll();
 		setLayout(new BorderLayout());

 		// create view title
 		// ShadedLabel slConfigurationLabel = new
 		// ShadedLabel("Configuration options for this XPath service",
 		// ShadedLabel.ORANGE);
 		// JPanel jpConfigurationLabel = new JPanel(new GridLayout(1,1));
 		// jpConfigurationLabel.add(slConfigurationLabel);
 		// jpConfigurationLabel.setBorder(BorderFactory.createEmptyBorder(10,
 		// 10, 0, 10));
 		// add(jpConfigurationLabel, BorderLayout.NORTH);

 		// create actual contents of the config panel
 		this.configPanel = new XPathActivityConfigurationPanel();
 		add(configPanel, BorderLayout.CENTER);

 		// place the whole configuration panel into a raised area, so that
 		// automatically added 'Apply' / 'Close' buttons visually apply to
 		// the whole of the panel, not just part of it
 		this.setBorder(BorderFactory.createCompoundBorder(BorderFactory
 				.createEmptyBorder(12, 12, 2, 12), BorderFactory
 				.createRaisedBevelBorder()));

 		// set preferred size for the panel (otherwise it will be way too small)
 		//this.setMinimumSize(new Dimension(800, 600));
 		//this.setPreferredSize(new Dimension(950, 650));

 		// Populate fields from activity configuration bean
 		refreshConfiguration();
 	}

 	/**
 	 * Check that user values in the UI are valid.
 	 */
 	@Override
 	public boolean checkValues() {
 		// the only validity condition is the correctness of the XPath
 		// expression -- so checking that
 		int xpathExpressionStatus = XPathActivityConfigurationBean
 				.validateXPath(this.configPanel.getCurrentXPathExpression());

 		// show an explicit warning message to explain the problem
 		if (xpathExpressionStatus == XPathActivityConfigurationBean.XPATH_EMPTY) {
 			JOptionPane.showMessageDialog(this,
 					"XPath expression should not be empty", "XPath Activity",
 					JOptionPane.WARNING_MESSAGE);
 		} else if (xpathExpressionStatus == XPathActivityConfigurationBean.XPATH_INVALID) {
 			JOptionPane
 					.showMessageDialog(
 							this,
 							"<html><center>XPath expression is invalid - hover the mouse over the XPath status<br>"
 									+ "icon to get more information</center></html>",
 							"XPath Activity", JOptionPane.WARNING_MESSAGE);
 		}

 		return (xpathExpressionStatus == XPathActivityConfigurationBean.XPATH_VALID);
 	}

 	/**
 	 * Return configuration bean generated from user interface last time
 	 * noteConfiguration() was called.
 	 */
 	@Override
 	public XPathActivityConfigurationBean getConfiguration() {
 		// Should already have been made by noteConfiguration()
 		return configBean;
 	}

 	/**
 	 * Check if the user has changed the configuration from the original
 	 */
 	@Override
 	public boolean isConfigurationChanged() {
 		boolean xmlDocumentHasNotChanged = (configPanel.getCurrentXMLTree() == null && configBean
 				.getXmlDocument() == null)
 				|| (configPanel.getCurrentXMLTree() != null
 						&& configBean.getXmlDocument() != null && configPanel
 						.getCurrentXMLTree().getDocumentUsedToPopulateTree()
 						.asXML().equals(configBean.getXmlDocument()));
 		boolean xpathExpressionHasNotChanged = configPanel
 				.getCurrentXPathExpression().equals(
 						configBean.getXpathExpression());
 		boolean xpathNamespaceMapHasNotChanged = configPanel
 				.getCurrentXPathNamespaceMap().equals(
 						configBean.getXpathNamespaceMap());

 		// true (changed) unless all fields match the originals
 		return !(xmlDocumentHasNotChanged && xpathExpressionHasNotChanged && xpathNamespaceMapHasNotChanged);
 	}

 	/**
 	 * Prepare a new configuration bean from the UI, to be returned with
 	 * getConfiguration()
 	 */
 	@Override
 	public void noteConfiguration() {
 		configBean = new XPathActivityConfigurationBean();

 		if (configPanel.getCurrentXMLTree() != null) {
 			configBean.setXmlDocument(configPanel.getCurrentXMLTree()
 					.getDocumentUsedToPopulateTree().asXML());
 		}
 		configBean.setXpathExpression(configPanel.getCurrentXPathExpression());
 		configBean.setXpathNamespaceMap(configPanel
 				.getCurrentXPathNamespaceMap());
 	}

 	/**
 	 * Update GUI from a changed configuration bean (perhaps by undo / redo).
 	 */
 	@Override
 	public void refreshConfiguration() {
 		configBean = activity.getConfiguration();

 		if (configBean.getXmlDocument() != null) {
 			configPanel.setSourceXML(configBean.getXmlDocument());
 			configPanel.parseXML();
 		}

 		configPanel.setCurrentXPathExpression(configBean.getXpathExpression());

 		configPanel.setCurrentXPathNamespaceMapValues(configBean
 				.getXpathNamespaceMap());
 		configPanel.reloadNamespaceMappingTableFromLocalMap();

 		// if the XML tree was populated, (re-)run the XPath expression
 		// and restore selection of nodes in the tree, if possible
 		if (configPanel.getCurrentXMLTree() != null) {
 			configPanel.runXPath(true);

 			// convert the XPath expression into the required list form;
 			// discard the first 'leg', as it's a side effect of
 			// "String.split()" -
 			// non-existent string to the left of the first "/"
 			String[] xpathLegs = configBean.getXpathExpression().split("/");
 			List<String> xpathLegList = new ArrayList<String>();
 			for (int i = 1; i < xpathLegs.length; i++) {
 				xpathLegList.add("/" + xpathLegs[i]);
 			}

 			// if nothing was obtained, we should be looking at the root node -
 			// but add the actual expression as it was, just in case
 			if (xpathLegList.size() == 0) {
 				xpathLegList.add(configPanel.getCurrentXPathExpression());
 			}

 			// invoke selection handler of the XML tree to do the job
 			configPanel.getCurrentXMLTree().getXMLTreeSelectionHandler()
 					.selectAllNodesThatMatchTheCurrentXPath(xpathLegList, null);
 		}

 	}
 }
	package net.sf.taverna.t2.activities.xpath.ui.config;

	import java.awt.BorderLayout;
	import java.util.ArrayList;
	import java.util.List;

	import javax.swing.BorderFactory;
	import javax.swing.JOptionPane;

	import net.sf.taverna.t2.workbench.ui.views.contextualviews.activity.ActivityConfigurationPanel;

	import net.sf.taverna.t2.activities.xpath.XPathActivity;
	import net.sf.taverna.t2.activities.xpath.XPathActivityConfigurationBean;

	@SuppressWarnings("serial")
	/**
	*
	* @author Sergejs Aleksejevs
	*/
	public class XPathActivityConfigurationPanelProvider
	extends
	ActivityConfigurationPanel<XPathActivity, XPathActivityConfigurationBean> {
	private XPathActivity activity;
	private XPathActivityConfigurationBean configBean;

	private XPathActivityConfigurationPanel configPanel;

	public XPathActivityConfigurationPanelProvider(XPathActivity activity) {
	this.activity = activity;
	initGui();
	}

	protected void initGui() {
	removeAll();
	setLayout(new BorderLayout());

	// create view title
	// ShadedLabel slConfigurationLabel = new
	// ShadedLabel("Configuration options for this XPath service",
	// ShadedLabel.ORANGE);
	// JPanel jpConfigurationLabel = new JPanel(new GridLayout(1,1));
	// jpConfigurationLabel.add(slConfigurationLabel);
	// jpConfigurationLabel.setBorder(BorderFactory.createEmptyBorder(10,
	// 10, 0, 10));
	// add(jpConfigurationLabel, BorderLayout.NORTH);

	// create actual contents of the config panel
	this.configPanel = new XPathActivityConfigurationPanel();
	add(configPanel, BorderLayout.CENTER);

	// place the whole configuration panel into a raised area, so that
	// automatically added 'Apply' / 'Close' buttons visually apply to
	// the whole of the panel, not just part of it
	this.setBorder(BorderFactory.createCompoundBorder(BorderFactory
	.createEmptyBorder(12, 12, 2, 12), BorderFactory
	.createRaisedBevelBorder()));

	// set preferred size for the panel (otherwise it will be way too small)
	//this.setMinimumSize(new Dimension(800, 600));
	//this.setPreferredSize(new Dimension(950, 650));

	// Populate fields from activity configuration bean
	refreshConfiguration();
	}

	/**
	* Check that user values in the UI are valid.
	*/
	@Override
	public boolean checkValues() {
	// the only validity condition is the correctness of the XPath
	// expression -- so checking that
	int xpathExpressionStatus = XPathActivityConfigurationBean
	.validateXPath(this.configPanel.getCurrentXPathExpression());

	// show an explicit warning message to explain the problem
	if (xpathExpressionStatus == XPathActivityConfigurationBean.XPATH_EMPTY) {
	JOptionPane.showMessageDialog(this,
	"XPath expression should not be empty", "XPath Activity",
	JOptionPane.WARNING_MESSAGE);
	} else if (xpathExpressionStatus == XPathActivityConfigurationBean.XPATH_INVALID) {
	JOptionPane
	.showMessageDialog(
	this,
	"<html><center>XPath expression is invalid - hover the mouse over the XPath status<br>"
	+ "icon to get more information</center></html>",
	"XPath Activity", JOptionPane.WARNING_MESSAGE);
	}

	return (xpathExpressionStatus == XPathActivityConfigurationBean.XPATH_VALID);
	}

	/**
	* Return configuration bean generated from user interface last time
	* noteConfiguration() was called.
	*/
	@Override
	public XPathActivityConfigurationBean getConfiguration() {
	// Should already have been made by noteConfiguration()
	return configBean;
	}

	/**
	* Check if the user has changed the configuration from the original
	*/
	@Override
	public boolean isConfigurationChanged() {
	boolean xmlDocumentHasNotChanged = (configPanel.getCurrentXMLTree() == null && configBean
	.getXmlDocument() == null)
	\|\| (configPanel.getCurrentXMLTree() != null
	&& configBean.getXmlDocument() != null && configPanel
	.getCurrentXMLTree().getDocumentUsedToPopulateTree()
	.asXML().equals(configBean.getXmlDocument()));
	boolean xpathExpressionHasNotChanged = configPanel
	.getCurrentXPathExpression().equals(
	configBean.getXpathExpression());
	boolean xpathNamespaceMapHasNotChanged = configPanel
	.getCurrentXPathNamespaceMap().equals(
	configBean.getXpathNamespaceMap());

	// true (changed) unless all fields match the originals
	return !(xmlDocumentHasNotChanged && xpathExpressionHasNotChanged && xpathNamespaceMapHasNotChanged);
	}

	/**
	* Prepare a new configuration bean from the UI, to be returned with
	* getConfiguration()
	*/
	@Override
	public void noteConfiguration() {
	configBean = new XPathActivityConfigurationBean();

	if (configPanel.getCurrentXMLTree() != null) {
	configBean.setXmlDocument(configPanel.getCurrentXMLTree()
	.getDocumentUsedToPopulateTree().asXML());
	}
	configBean.setXpathExpression(configPanel.getCurrentXPathExpression());
	configBean.setXpathNamespaceMap(configPanel
	.getCurrentXPathNamespaceMap());
	}

	/**
	* Update GUI from a changed configuration bean (perhaps by undo / redo).
	*/
	@Override
	public void refreshConfiguration() {
	configBean = activity.getConfiguration();

	if (configBean.getXmlDocument() != null) {
	configPanel.setSourceXML(configBean.getXmlDocument());
	configPanel.parseXML();
	}

	configPanel.setCurrentXPathExpression(configBean.getXpathExpression());

	configPanel.setCurrentXPathNamespaceMapValues(configBean
	.getXpathNamespaceMap());
	configPanel.reloadNamespaceMappingTableFromLocalMap();

	// if the XML tree was populated, (re-)run the XPath expression
	// and restore selection of nodes in the tree, if possible
	if (configPanel.getCurrentXMLTree() != null) {
	configPanel.runXPath(true);

	// convert the XPath expression into the required list form;
	// discard the first 'leg', as it's a side effect of
	// "String.split()" -
	// non-existent string to the left of the first "/"
	String[] xpathLegs = configBean.getXpathExpression().split("/");
	List<String> xpathLegList = new ArrayList<String>();
	for (int i = 1; i < xpathLegs.length; i++) {
	xpathLegList.add("/" + xpathLegs[i]);
	}

	// if nothing was obtained, we should be looking at the root node -
	// but add the actual expression as it was, just in case
	if (xpathLegList.size() == 0) {
	xpathLegList.add(configPanel.getCurrentXPathExpression());
	}

	// invoke selection handler of the XML tree to do the job
	configPanel.getCurrentXMLTree().getXMLTreeSelectionHandler()
	.selectAllNodesThatMatchTheCurrentXPath(xpathLegList, null);
	}

	}
	}