Java Code Examples for org.dom4j.Element#attribute()

@SuppressWarnings("unchecked")
public Element getNodeByActionName(String actionName) {
    // 取得所有节点
    List<Node> nodeList = doc.selectNodes(DEFAULT_ACTION_PATH);
    // 遍历所有的Node节点
    System.out.println(nodeList.size());
    for (Node node : nodeList) {
        Element e = (Element) node;
        Attribute a = e.attribute("name");
        // 找到名字匹配的action
        if (a.getText().equals(actionName)) {
            return e;
        }
    }
    return null;
}
 

/**
*/
  @Override
  public Object parse(final Element element) {
      // assert element.getName().equalsIgnoreCase("material");

      final List materials = element.elements();
      if (materials.size() == 0) {
          return null;
      }

      final Material material = new Material();
      // ATTRIBUTES
      final Attribute label = element.attribute("label");
      if (label != null) {
          material.setLable(label.getValue());
      }

      // ELEMENTS
      for (final Iterator i = materials.iterator(); i.hasNext();) {
          final QTIObject obj = (QTIObject) parserManager.parse((Element) i.next());
          if (obj != null) {
              material.getElements().add(obj);
          }
      }
      return material;
  }
 

public Object get(Object owner) throws HibernateException {
	Element ownerElement = (Element) owner;
	
	Element element = ownerElement.element(elementName);
	
	if ( element==null ) {
		return null;
	}
	else {
		Attribute attribute = element.attribute(attributeName);
		if (attribute==null) {
			return null;
		}
		else {
			return super.propertyType.fromXMLNode(attribute, super.factory);
		}
	}
}
 

/**
 * Receive and process acknowledgement packet from client
 * @param ack XEP-0198 acknowledgement <a /> stanza to process
 */
private void processClientAcknowledgement(Element ack) {
    if(isEnabled()) {
        if (ack.attribute("h") != null) {
            final long h = Long.valueOf(ack.attributeValue("h"));

            Log.debug( "Received acknowledgement from client: h={}", h );

            if (!validateClientAcknowledgement(h)) {
                Log.warn( "Closing client session. Client acknowledges stanzas that we didn't send! Client Ack h: {}, our last stanza: {}, affected session: {}", h, unacknowledgedServerStanzas.getLast().x, session );
                final StreamError error = new StreamError( StreamError.Condition.undefined_condition, "You acknowledged stanzas that we didn't send. Your Ack h: " + h + ", our last stanza: " + unacknowledgedServerStanzas.getLast().x );
                session.deliverRawText( error.toXML() );
                session.close();
                return;
            }

            processClientAcknowledgement(h);
        }
    }
}
 

private static void bindColumnsOrFormula(Element node, SimpleValue simpleValue, String path,
		boolean isNullable, Mappings mappings) {
	Attribute formulaNode = node.attribute( "formula" );
	if ( formulaNode != null ) {
		Formula f = new Formula();
		f.setFormula( formulaNode.getText() );
		simpleValue.addFormula( f );
	}
	else {
		bindColumns( node, simpleValue, isNullable, true, path, mappings );
	}
}
 

protected void loadCaption(Component.HasCaption component, Element element) {
    if (element.attribute("caption") != null) {
        String caption = element.attributeValue("caption");

        caption = loadResourceString(caption);
        component.setCaption(caption);

        if (component instanceof HasHtmlCaption) {
            loadCaptionAsHtml((HasHtmlCaption) component, element);
        }
    }
}
 

protected void loadDescription(Component.HasDescription component, Element element) {
    if (element.attribute("description") != null) {
        String description = element.attributeValue("description");

        description = loadResourceString(description);
        component.setDescription(description);

        if (component instanceof HasHtmlDescription) {
            loadDescriptionAsHtml((HasHtmlDescription) component, element);
        }
    }
}
 

/**
 * Returns true if the specified property is included in the XML hierarchy. A property could
 * have a value associated or not. If the property has an associated value then
 *
 * @param element the element to check
 * @param name the name of the property to find out.
 * @return true if the specified property is included in the XML hierarchy.
 */
public static boolean includesProperty(Element element, String name) {
    String[] propName = parsePropertyName(name);

    // Grab the attribute if there is one
    String lastName = propName[propName.length - 1];
    String attName = null;
    int attributeIndex = lastName.indexOf(':');
    if (attributeIndex >= 0) {
        propName[propName.length - 1] = lastName.substring(0, attributeIndex);
        attName = lastName.substring(attributeIndex + 1);
    }

    // Search for this property by traversing down the XML hierarchy.
    int i = propName[0].equals(element.getName()) ? 1 : 0;
    for (; i < propName.length; i++) {
        element = element.element(propName[i]);
        if (element == null) {
            break;
        }
    }

    if (element != null) {
        if (attName == null){
            // The property exists so return true
            return true;
        } else {
            // The property exists if the attribute exists in the element
            return element.attribute(attName) != null;
        }
    }
    else {
        // The property does not exist so return false
        return false;
    }
}
 

@Nullable
protected String loadCaption(Element element) {
    if (element.attribute("caption") != null) {
        String caption = element.attributeValue("caption");

        return loadResourceString(caption);
    }
    return null;
}
 

private IdClass getIdClass(Element tree, XMLContext.Default defaults) {
	Element element = tree == null ? null : tree.element( "id-class" );
	if ( element != null ) {
		Attribute attr = element.attribute( "class" );
		if ( attr != null ) {
			AnnotationDescriptor ad = new AnnotationDescriptor( IdClass.class );
			Class clazz;
			try {
				clazz = classLoaderAccess.classForName( XMLContext.buildSafeClassName( attr.getValue(), defaults )
				);
			}
			catch ( ClassLoadingException e ) {
				throw new AnnotationException( "Unable to find id-class: " + attr.getValue(), e );
			}
			ad.setValue( "value", clazz );
			return AnnotationFactory.create( ad );
		}
		else {
			throw new AnnotationException( "id-class without class. " + SCHEMA_VALIDATION );
		}
	}
	else if ( defaults.canUseJavaAnnotations() ) {
		return getPhysicalAnnotation( IdClass.class );
	}
	else {
		return null;
	}
}
 

private static void bindSimpleValueType(Element node, SimpleValue simpleValue, Mappings mappings)
		throws MappingException {
	String typeName = null;

	Properties parameters = new Properties();

	Attribute typeNode = node.attribute( "type" );
	if ( typeNode == null ) typeNode = node.attribute( "id-type" ); // for an any
	if ( typeNode != null ) typeName = typeNode.getValue();

	Element typeChild = node.element( "type" );
	if ( typeName == null && typeChild != null ) {
		typeName = typeChild.attribute( "name" ).getValue();
		Iterator typeParameters = typeChild.elementIterator( "param" );

		while ( typeParameters.hasNext() ) {
			Element paramElement = (Element) typeParameters.next();
			parameters.setProperty(
					paramElement.attributeValue( "name" ),
					paramElement.getTextTrim()
				);
		}
	}

	TypeDef typeDef = mappings.getTypeDef( typeName );
	if ( typeDef != null ) {
		typeName = typeDef.getTypeClass();
		// parameters on the property mapping should
		// override parameters in the typedef
		Properties allParameters = new Properties();
		allParameters.putAll( typeDef.getParameters() );
		allParameters.putAll( parameters );
		parameters = allParameters;
	}

	if ( !parameters.isEmpty() ) simpleValue.setTypeParameters( parameters );

	if ( typeName != null ) simpleValue.setTypeName( typeName );
}
 

public void set(Object target, Object value, SessionFactoryImplementor factory) 
throws HibernateException {
	Element owner = ( Element ) target;
	Attribute attribute = owner.attribute(attributeName);
	if (value==null) {
		if (attribute!=null) attribute.detach();
	}
	else {
		if (attribute==null) {
			owner.addAttribute(attributeName, "null");
			attribute = owner.attribute(attributeName);
		}
		super.propertyType.setToXMLNode(attribute, value, factory);
	}
}
 

protected void setName(Element traceEventElement) {

        Element element = traceEventElement.element("EventKey");

        if (element != null) {
            name = element.getText();
        } else {
            element = traceEventElement.element("InstanceName");

            if (element != null) {
                name = element.getText();
            }
        }

        if ((name != null) && (!"".equals(name))) {

            if (isInstanceHandle(name)) {

                Attribute attribute = traceEventElement.attribute("inskey");

                if (attribute != null) {

                    attribute = traceEventElement.attribute("keyname");

                    if (attribute != null) {

                        name = attribute.getText();

                        if (isDataPageEventKey()) {
                            name = buildActivityName(name);
                            name = buildDataPageDisplayName(name);
                        }
                    }

                } else {
                    name = buildActivityName(name);
                }
            } else if (!isInstanceWithKeys(name)) {
                name = buildActivityName(name);
            }
        }
    }
 

public void initialise(Element element, NamespacePrefixResolver nspr, PermissionModel permissionModel)
{
    name = element.attributeValue(NAME);
    
    for (Iterator rpit = element.elementIterator(REQUIRED_PERMISSION); rpit.hasNext(); /**/)
    {
        QName qName;
        Element requiredPermissionElement = (Element) rpit.next();
        Attribute typeAttribute = requiredPermissionElement.attribute(RP_TYPE);
        if (typeAttribute != null)
        {
            qName = QName.createQName(typeAttribute.getStringValue(), nspr);
        }
        else
        {
            qName = typeQName;
        }

        String requiredName = requiredPermissionElement.attributeValue(RP_NAME);

        RequiredPermission.On on;
        String onString = requiredPermissionElement.attributeValue(RP_ON);
        if (onString.equalsIgnoreCase(NODE_ENTRY))
        {
            on = RequiredPermission.On.NODE;
        }
        else if (onString.equalsIgnoreCase(PARENT_ENTRY))
        {
            on = RequiredPermission.On.PARENT;
        }
        else if (onString.equalsIgnoreCase(CHILDREN_ENTRY))
        {
            on = RequiredPermission.On.CHILDREN;
        }
        else
        {
            throw new PermissionModelException("Required permission must specify parent or node for the on attribute.");
        }
        
        boolean implies = false;
        Attribute impliesAttribute = requiredPermissionElement.attribute(RP_IMPLIES);
        if (impliesAttribute != null)
        {
            implies = Boolean.parseBoolean(impliesAttribute.getStringValue());
        }
        
        RequiredPermission rq = new RequiredPermission(qName, requiredName, on, implies);
        
        requiredPermissions.add(rq);
    }
}
 

private static void makeIdentifier(Element node, SimpleValue model, Mappings mappings) {

		// GENERATOR
		Element subnode = node.element( "generator" );
		if ( subnode != null ) {
			model.setIdentifierGeneratorStrategy( subnode.attributeValue( "class" ) );

			Properties params = new Properties();

			if ( mappings.getSchemaName() != null ) {
				params.setProperty( PersistentIdentifierGenerator.SCHEMA, mappings.getSchemaName() );
			}
			if ( mappings.getCatalogName() != null ) {
				params.setProperty( PersistentIdentifierGenerator.CATALOG, mappings.getCatalogName() );
			}

			Iterator iter = subnode.elementIterator( "param" );
			while ( iter.hasNext() ) {
				Element childNode = (Element) iter.next();
				params.setProperty( childNode.attributeValue( "name" ), childNode.getText() );
			}

			model.setIdentifierGeneratorProperties( params );
		}

		model.getTable().setIdentifierValue( model );

		// ID UNSAVED-VALUE
		Attribute nullValueNode = node.attribute( "unsaved-value" );
		if ( nullValueNode != null ) {
			model.setNullValue( nullValueNode.getValue() );
		}
		else {
			if ( "assigned".equals( model.getIdentifierGeneratorStrategy() ) ) {
				model.setNullValue( "undefined" );
			}
			else {
				model.setNullValue( null );
			}
		}
	}
 

/**
*/
  @Override
  public List<TextMarker> loadTextMarkerList(VFSLeaf textMarkerFile) {
      if (textMarkerFile == null) {
          // filename not defined at all
          return new ArrayList<TextMarker>();
      }
      XMLParser parser = new XMLParser();
      InputStream stream = textMarkerFile.getInputStream();
      if (stream == null) {
          // e.g. file was removed
          return new ArrayList<TextMarker>();
      }
      Document doc = parser.parse(stream, false);
      Element root = doc.getRootElement();
      if (root == null) {
          // file was empty;
          return new ArrayList<TextMarker>();
      }
      // Do version check. Not needed now, for future lazy migration code...
      Attribute versionAttribute = root.attribute(XML_VERSION_ATTRIBUTE);
      int version = (versionAttribute == null ? 1 : Integer.parseInt(versionAttribute.getStringValue()));
      if (version != VERSION) {
          // complain about version conflict or solve it
          throw new OLATRuntimeException("Could not load glossary entries due to version conflict. Loaded version was::" + version, null);
      }
      // parse text marker objects and put them into a list
      List markersElements = root.elements("textMarker");
      List<TextMarker> markers = new ArrayList<TextMarker>();
      Iterator iter = markersElements.iterator();
      while (iter.hasNext()) {
          Element textMarkerElement = (Element) iter.next();
          TextMarker textMarker = new TextMarker(textMarkerElement);
          markers.add(textMarker);
      }
      try {
          stream.close();
      } catch (IOException e) {
          throw new OLATRuntimeException(this.getClass(), "Error while closing text marker file stream", e);
      }
      return markers;
  }
 

protected String parseString(Element element, String name) {
    Attribute attribute = element.attribute(name);
    return attribute == null ? null : attribute.getValue();
}
 

/**
 * Check for title and at least one resource.
 * 
 * @param unzippedDir
 * @return True if is of type.
 */
public static boolean validate(final File unzippedDir) throws AddingResourceException {
    final File fManifest = new File(unzippedDir, "imsmanifest.xml");
    final Document doc = IMSLoader.loadIMSDocument(fManifest);
    // do not throw exception already here, as it might be only a generic zip file
    if (doc == null) {
        return false;
    }

    // get all organization elements. need to set namespace
    final Element rootElement = doc.getRootElement();
    final String nsuri = rootElement.getNamespace().getURI();
    final Map nsuris = new HashMap(1);
    nsuris.put("ns", nsuri);

    // Check for organiztaion element. Must provide at least one... title gets ectracted from either
    // the (optional) <title> element or the mandatory identifier attribute.
    // This makes sure, at least a root node gets created in CPManifestTreeModel.
    final XPath meta = rootElement.createXPath("//ns:organization");
    meta.setNamespaceURIs(nsuris);
    final Element orgaEl = (Element) meta.selectSingleNode(rootElement); // TODO: accept several organizations?
    if (orgaEl == null) {
        throw new AddingResourceException("resource.no.organisation");
    }

    // Check for at least one <item> element referencing a <resource>, which will serve as an entry point.
    // This is mandatory, as we need an entry point as the user has the option of setting
    // CPDisplayController to not display a menu at all, in which case the first <item>/<resource>
    // element pair gets displayed.
    final XPath resourcesXPath = rootElement.createXPath("//ns:resources");
    resourcesXPath.setNamespaceURIs(nsuris);
    final Element elResources = (Element) resourcesXPath.selectSingleNode(rootElement);
    if (elResources == null) {
        throw new AddingResourceException("resource.no.resource"); // no <resources> element.
    }
    final XPath itemsXPath = rootElement.createXPath("//ns:item");
    itemsXPath.setNamespaceURIs(nsuris);
    final List items = itemsXPath.selectNodes(rootElement);
    if (items.size() == 0) {
        throw new AddingResourceException("resource.no.item"); // no <item> element.
    }
    for (final Iterator iter = items.iterator(); iter.hasNext();) {
        final Element item = (Element) iter.next();
        final String identifierref = item.attributeValue("identifierref");
        if (identifierref == null) {
            continue;
        }
        final XPath resourceXPath = rootElement.createXPath("//ns:resource[@identifier='" + identifierref + "']");
        resourceXPath.setNamespaceURIs(nsuris);
        final Element elResource = (Element) resourceXPath.selectSingleNode(elResources);
        if (elResource == null) {
            throw new AddingResourceException("resource.no.matching.resource");
        }
        if (elResource.attribute("scormtype") != null) {
            return false;
        }
        if (elResource.attribute("scormType") != null) {
            return false;
        }
        if (elResource.attribute("SCORMTYPE") != null) {
            return false;
        }
        if (elResource.attributeValue("href") != null) {
            return true; // success.
        }
    }
    return false;
    // throw new AddingResourceException("resource.general.error");
}
 

protected void setRuleSet(Element traceEventElement) {

        Attribute attribute = traceEventElement.attribute("rsname");

        if (attribute != null) {
            ruleSet = attribute.getText();
        }

        attribute = traceEventElement.attribute("rsvers");

        if (attribute != null) {
            ruleSet = ruleSet + " " + attribute.getText();
        }

    }
 

public static void bindOneToOne(Element node, OneToOne oneToOne, String path, boolean isNullable,
		Mappings mappings) throws MappingException {

	bindColumns( node, oneToOne, isNullable, false, null, mappings );

	Attribute constrNode = node.attribute( "constrained" );
	boolean constrained = constrNode != null && constrNode.getValue().equals( "true" );
	oneToOne.setConstrained( constrained );

	oneToOne.setForeignKeyType( constrained ?
			ForeignKeyDirection.FOREIGN_KEY_FROM_PARENT :
			ForeignKeyDirection.FOREIGN_KEY_TO_PARENT );

	initOuterJoinFetchSetting( node, oneToOne );
	initLaziness( node, oneToOne, mappings, true );

	oneToOne.setEmbedded( "true".equals( node.attributeValue( "embed-xml" ) ) );

	Attribute fkNode = node.attribute( "foreign-key" );
	if ( fkNode != null ) oneToOne.setForeignKeyName( fkNode.getValue() );

	Attribute ukName = node.attribute( "property-ref" );
	if ( ukName != null ) oneToOne.setReferencedPropertyName( ukName.getValue() );

	oneToOne.setPropertyName( node.attributeValue( "name" ) );

	oneToOne.setReferencedEntityName( getEntityName( node, mappings ) );

	validateCascade( node, path );
}