taverna-localworker-activity-ui/src/main/resources/net.sourceforge.taverna.scuflworkers.ui.SelectFileWorker

<activity xmlns="http://taverna.sf.net/2008/xml/t2flow"><class>net.sf.taverna.t2.activities.localworker.LocalworkerActivity</class><inputMap /><outputMap /><configBean encoding="xstream"><net.sf.taverna.t2.activities.localworker.LocalworkerActivityConfigurationBean xmlns="">
  <script>import java.awt.CardLayout;
import java.awt.Image;
import java.awt.Toolkit;
import java.io.File;
import java.util.HashMap;
import java.util.Map;

import javax.swing.ImageIcon;
import javax.swing.JEditorPane;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.filechooser.FileFilter;

class FileExtFilter extends FileFilter {

	public FileExtFilter(String ext, String label, boolean includeDir) {
		this.ext = ext;
		this.label = label;
		this.includeDir = includeDir;
	}

	public String getDescription() {
		return this.label;
	}

	public boolean accept(File file) {
		if (file.isDirectory() &amp;&amp; includeDir) {
			return true;
		} else {
			return file.getName().endsWith(this.ext);
		}
	}

	String ext, label;

	boolean includeDir;
}

if (title == void) {
	title = null;
}

if ((fileExtensions == void) || (fileExtensions == null)) {
	fileExtensions = "";
}

if ((fileExtLabels == void) || (fileExtLabels == null)) {
	fileExtLabels = "";
}

JFileChooser chooser = new JFileChooser();
chooser.setDialogTitle(title);

String[] fileTypeList = fileExtensions.split(",");
String[] filterLabelList = fileExtLabels.split(",");

if (fileTypeList != null &amp;&amp; filterLabelList != null &amp;&amp; fileTypeList.length != filterLabelList.length) {
	throw new RuntimeException("The list of extensions and file filter labels must be the same length");
}

// create the file filters
for (int i = 0; i &lt; fileTypeList.length; i++) {
	FileExtFilter filter = new FileExtFilter(fileTypeList[i], filterLabelList[i], true);
	chooser.setFileFilter(filter);
}

chooser.showOpenDialog(null);
File file = chooser.getSelectedFile();
selectedFile = file.getAbsolutePath();
</script>
  <dependencies />
  <inputs>
    <net.sf.taverna.t2.workflowmodel.processor.activity.config.ActivityInputPortDefinitionBean>
      <handledReferenceSchemes />
      <translatedElementType>java.lang.String</translatedElementType>
      <allowsLiteralValues>true</allowsLiteralValues>
      <name>title</name>
      <depth>0</depth>
      <mimeTypes>
        <string>'text/plain'</string>
      </mimeTypes>
    </net.sf.taverna.t2.workflowmodel.processor.activity.config.ActivityInputPortDefinitionBean>
    <net.sf.taverna.t2.workflowmodel.processor.activity.config.ActivityInputPortDefinitionBean>
      <handledReferenceSchemes />
      <translatedElementType>java.lang.String</translatedElementType>
      <allowsLiteralValues>true</allowsLiteralValues>
      <name>fileExtensions</name>
      <depth>0</depth>
      <mimeTypes>
        <string>'text/plain'</string>
      </mimeTypes>
    </net.sf.taverna.t2.workflowmodel.processor.activity.config.ActivityInputPortDefinitionBean>
    <net.sf.taverna.t2.workflowmodel.processor.activity.config.ActivityInputPortDefinitionBean>
      <handledReferenceSchemes />
      <translatedElementType>java.lang.String</translatedElementType>
      <allowsLiteralValues>true</allowsLiteralValues>
      <name>fileExtLabels</name>
      <depth>0</depth>
      <mimeTypes>
        <string>'text/plain'</string>
      </mimeTypes>
    </net.sf.taverna.t2.workflowmodel.processor.activity.config.ActivityInputPortDefinitionBean>
  </inputs>
  <outputs>
    <net.sf.taverna.t2.workflowmodel.processor.activity.config.ActivityOutputPortDefinitionBean>
      <granularDepth>0</granularDepth>
      <name>selectedFile</name>
      <depth>0</depth>
      <mimeTypes>
        <string>'text/plain'</string>
      </mimeTypes>
    </net.sf.taverna.t2.workflowmodel.processor.activity.config.ActivityOutputPortDefinitionBean>
  </outputs>
</net.sf.taverna.t2.activities.localworker.LocalworkerActivityConfigurationBean></configBean></activity>