taverna-xpath-activity-ui/src/main/java/org/apache/taverna/activities/xpath/ui/config/XPathActivityConfigurationPanelProvider.java - incubator-taverna-workbench-common-activities - Git at Google

 package org.apache.taverna.activities.xpath.ui.config;

 import java.awt.BorderLayout;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;

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

 import org.apache.taverna.activities.xpath.XPathActivityConfigurationBean;
 import org.apache.taverna.workbench.ui.views.contextualviews.activity.ActivityConfigurationPanel;
 import org.apache.taverna.services.ServiceRegistry;
 import org.apache.taverna.scufl2.api.activity.Activity;

 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.ArrayNode;

 /**
  *
  * @author Sergejs Aleksejevs
  * @author David Withers
  */
 @SuppressWarnings("serial")
 public class XPathActivityConfigurationPanelProvider extends ActivityConfigurationPanel {

 	private XPathActivityConfigurationPanel configPanel;
 	private final ServiceRegistry serviceRegistry;

 	public XPathActivityConfigurationPanelProvider(Activity activity, ServiceRegistry serviceRegistry) {
 		super(activity);
 		this.serviceRegistry = serviceRegistry;
 		initialise();
 	}

 	@Override
 	protected void initialise() {
 		super.initialise();
 		removeAll();
 		setLayout(new BorderLayout());

 		// 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()));

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

 	/**
 	 * Prepare a new configuration bean from the UI, to be returned with
 	 * getConfiguration()
 	 */
 	@Override
 	public void noteConfiguration() {
 		if (configPanel.getCurrentXMLTree() != null) {
 			setProperty("exampleXmlDocument", configPanel.getCurrentXMLTree()
 					.getDocumentUsedToPopulateTree().asXML());
 		}
 		setProperty("xpathExpression", configPanel.getCurrentXPathExpression());

 		Map<String, String> xPathNamespaceMap = configPanel.getCurrentXPathNamespaceMap();
 		if (xPathNamespaceMap.isEmpty()) {
 			json.remove("xpathNamespaceMap");
 		} else {
 			ArrayNode namespaceMapNode = json.arrayNode();
 			for (Entry<String, String> namespaceMapping : xPathNamespaceMap.entrySet()) {
 				namespaceMapNode.addObject().put("prefix", namespaceMapping.getKey()).put("uri", namespaceMapping.getValue());
 			}
 			json.set("xpathNamespaceMap", namespaceMapNode);
 		}

 		configureInputPorts(serviceRegistry);
 		configureOutputPorts(serviceRegistry);
 }

 	/**
 	 * 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);
 	}

 	/**
 	 * Update GUI from a changed configuration bean (perhaps by undo / redo).
 	 */
 	@Override
 	public void refreshConfiguration() {
 		if (json.has("exampleXmlDocument")) {
 			configPanel.setSourceXML(getProperty("exampleXmlDocument"));
 			configPanel.parseXML();
 		}

 		configPanel.setCurrentXPathExpression(getProperty("xpathExpression"));

 		Map<String, String> xpathNamespaceMap = new HashMap<>();
 		if (json.has("xpathNamespaceMap")) {
 			for (JsonNode namespaceMapping : json.get("xpathNamespaceMap")) {
 				xpathNamespaceMap.put(namespaceMapping.get("prefix").asText(), namespaceMapping.get("uri").asText());
 			}
 		}
 		configPanel.setCurrentXPathNamespaceMapValues(xpathNamespaceMap);
 		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 = getProperty("xpathExpression").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 org.apache.taverna.activities.xpath.ui.config;

	import java.awt.BorderLayout;
	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;
	import java.util.Map.Entry;

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

	import org.apache.taverna.activities.xpath.XPathActivityConfigurationBean;
	import org.apache.taverna.workbench.ui.views.contextualviews.activity.ActivityConfigurationPanel;
	import org.apache.taverna.services.ServiceRegistry;
	import org.apache.taverna.scufl2.api.activity.Activity;

	import com.fasterxml.jackson.databind.JsonNode;
	import com.fasterxml.jackson.databind.node.ArrayNode;

	/**
	*
	* @author Sergejs Aleksejevs
	* @author David Withers
	*/
	@SuppressWarnings("serial")
	public class XPathActivityConfigurationPanelProvider extends ActivityConfigurationPanel {

	private XPathActivityConfigurationPanel configPanel;
	private final ServiceRegistry serviceRegistry;

	public XPathActivityConfigurationPanelProvider(Activity activity, ServiceRegistry serviceRegistry) {
	super(activity);
	this.serviceRegistry = serviceRegistry;
	initialise();
	}

	@Override
	protected void initialise() {
	super.initialise();
	removeAll();
	setLayout(new BorderLayout());

	// 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()));

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

	/**
	* Prepare a new configuration bean from the UI, to be returned with
	* getConfiguration()
	*/
	@Override
	public void noteConfiguration() {
	if (configPanel.getCurrentXMLTree() != null) {
	setProperty("exampleXmlDocument", configPanel.getCurrentXMLTree()
	.getDocumentUsedToPopulateTree().asXML());
	}
	setProperty("xpathExpression", configPanel.getCurrentXPathExpression());

	Map<String, String> xPathNamespaceMap = configPanel.getCurrentXPathNamespaceMap();
	if (xPathNamespaceMap.isEmpty()) {
	json.remove("xpathNamespaceMap");
	} else {
	ArrayNode namespaceMapNode = json.arrayNode();
	for (Entry<String, String> namespaceMapping : xPathNamespaceMap.entrySet()) {
	namespaceMapNode.addObject().put("prefix", namespaceMapping.getKey()).put("uri", namespaceMapping.getValue());
	}
	json.set("xpathNamespaceMap", namespaceMapNode);
	}

	configureInputPorts(serviceRegistry);
	configureOutputPorts(serviceRegistry);
	}

	/**
	* 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);
	}

	/**
	* Update GUI from a changed configuration bean (perhaps by undo / redo).
	*/
	@Override
	public void refreshConfiguration() {
	if (json.has("exampleXmlDocument")) {
	configPanel.setSourceXML(getProperty("exampleXmlDocument"));
	configPanel.parseXML();
	}

	configPanel.setCurrentXPathExpression(getProperty("xpathExpression"));

	Map<String, String> xpathNamespaceMap = new HashMap<>();
	if (json.has("xpathNamespaceMap")) {
	for (JsonNode namespaceMapping : json.get("xpathNamespaceMap")) {
	xpathNamespaceMap.put(namespaceMapping.get("prefix").asText(), namespaceMapping.get("uri").asText());
	}
	}
	configPanel.setCurrentXPathNamespaceMapValues(xpathNamespaceMap);
	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 = getProperty("xpathExpression").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);
	}

	}
	}