Über API Formulardefinition eines Feldes auslesen

Zendesk API User

• 17 octobre 2013 10:49

Author: mhenke
Publication Date: 10/17/2013 10:49

Hallo,

gibt es eine einfache Möglichkeit über die API, die Definition eines Feldes aus einem Formular auszulesen ?

Mittels GomSourceProvider.getGomSource() erhalte ich die komplette Definition, welche ich theoretisch selbst parsen könnte.

Es wäre allerdings schön, das Ganze mit einer API-Funktion erledigen zu können.

Tags: api, formular, gom

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  Zendesk API User

  • 21 octobre 2013 11:07

  Author: mhenke - 10/21/2013 11:07
  

  Ich habe es nun selbst mit folgender Klasse gelöst:

  import java.io.ByteArrayInputStream;
  import java.io.IOException;
  import java.io.StringWriter;
  
  import javax.xml.parsers.DocumentBuilder;
  import javax.xml.parsers.DocumentBuilderFactory;
  import javax.xml.parsers.ParserConfigurationException;
  import javax.xml.transform.OutputKeys;
  import javax.xml.transform.Transformer;
  import javax.xml.transform.TransformerException;
  import javax.xml.transform.TransformerFactory;
  import javax.xml.transform.dom.DOMSource;
  import javax.xml.transform.stream.StreamResult;
  import javax.xml.xpath.XPath;
  import javax.xml.xpath.XPathConstants;
  import javax.xml.xpath.XPathExpression;
  import javax.xml.xpath.XPathExpressionException;
  import javax.xml.xpath.XPathFactory;
  
  import org.w3c.dom.Document;
  import org.w3c.dom.Node;
  import org.w3c.dom.NodeList;
  import org.xml.sax.SAXException;
  
  import de.espirit.firstspirit.access.store.templatestore.GomSourceProvider;
  
  public class FormParser {
       private Document document;
  
       private static DocumentBuilderFactory documentFactory;
       private static XPathFactory xPathFactory;
       private static TransformerFactory transformerFactory;
       static {
            documentFactory = DocumentBuilderFactory.newInstance();
            xPathFactory = XPathFactory.newInstance();
            transformerFactory = TransformerFactory.newInstance();
       }
  
       public FormParser(GomSourceProvider gsp) throws ParserConfigurationException, SAXException, IOException {
            String source = gsp.getGomSource();
            DocumentBuilder builder = documentFactory.newDocumentBuilder();
            document = builder.parse(new ByteArrayInputStream(source.getBytes()));
       }
  
       public String getFieldDefinition(String field) throws XPathExpressionException, TransformerException {
            XPath xPath = xPathFactory.newXPath();
            XPathExpression expr = xPath.compile("//*[parent::CMS_MODULE|parent::CMS_GROUP and @name='" + field + "']");
            NodeList nl = (NodeList) expr.evaluate(document, XPathConstants.NODESET);
            if (nl.getLength() == 0) {
                 return null;
            }
            return nodeToString(nl.item(0));
       }
  
       private String nodeToString(Node node) throws TransformerException {
            StringWriter sw = new StringWriter();
            Transformer t = transformerFactory.newTransformer();
            t.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
            t.setOutputProperty(OutputKeys.INDENT, "yes");
            t.transform(new DOMSource(node), new StreamResult(sw));
            return sw.toString();
       }
  }
  

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