Examples of org.apache.commons.digester.NodeCreateRule

org.apache.commons.digester.NodeCreateRule
A rule implementation that creates a DOM {@link org.w3c.dom.Node Node} containing the XML at the element that matchedthe rule. Two concrete types of nodes can be created by this rule:
- the default is to create an {@link org.w3c.dom.Element Element} node.The created element will correspond to the element that matched the rule, containing all XML content underneath that element.
- alternatively, this rule can create nodes of type {@link org.w3c.dom.DocumentFragment DocumentFragment}, which will contain only the XML content under the element the rule was trigged on.
The created node will be normalized, meaning it will not contain text nodes that only contain white space characters.
The created Node will be pushed on Digester's object stack when done. To use it in the context of another DOM {@link org.w3c.dom.Document Document}, it must be imported first, using the Document method {@link org.w3c.dom.Document#importNode(org.w3c.dom.Node,boolean) importNode()}.

Important Note: This is implemented by replacing the SAX {@link org.xml.sax.ContentHandler ContentHandler} in the parser used by Digester, and resetting it when the matched element is closed. As a side effect, rules that would match XML nodes under the element that matches a NodeCreateRule will never be triggered by Digester, which usually is the behavior one would expect.

Note that the current implementation does not set the namespace prefixes in the exported nodes. The (usually more important) namespace URIs are set, of course.
@since Digester 1.4


            String nodeType = attributes.getValue("type");
            if (nodeType == null || "".equals(nodeType)) {


                // uses Node.ELEMENT_NODE
                return new NodeCreateRule();
            } else if ("element".equals(nodeType)) {


                return new NodeCreateRule(Node.ELEMENT_NODE);
            } else if ("fragment".equals(nodeType)) {


                return new NodeCreateRule(Node.DOCUMENT_FRAGMENT_NODE);
            } else {


                throw new RuntimeException(
                        "Unrecognized node type: "
                                + nodeType

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            String nodeType = attributes.getValue("type");
            if (nodeType == null || "".equals(nodeType)) {


                // uses Node.ELEMENT_NODE
                return new NodeCreateRule();
            } else if ("element".equals(nodeType)) {


                return new NodeCreateRule(Node.ELEMENT_NODE);
            } else if ("fragment".equals(nodeType)) {


                return new NodeCreateRule(Node.DOCUMENT_FRAGMENT_NODE);
            } else {


                throw new RuntimeException(
                        "Unrecognized node type: "
                                + nodeType

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            String nodeType = attributes.getValue("type");
            if (nodeType == null || "".equals(nodeType)) {


                // uses Node.ELEMENT_NODE
                return new NodeCreateRule();
            } else if ("element".equals(nodeType)) {


                return new NodeCreateRule(Node.ELEMENT_NODE);
            } else if ("fragment".equals(nodeType)) {


                return new NodeCreateRule(Node.DOCUMENT_FRAGMENT_NODE);
            } else {


                throw new RuntimeException(
                        "Unrecognized node type: "
                                + nodeType

View Full Code Here

        try {
            //tested with digester: XML displayed as a jhoveTreeNode 
            XMPasString = XMPasString.substring(1, XMPasString.length() - 1);
            
            Digester digester=new Digester();
            digester.addRule("XMPInfo", new NodeCreateRule());
            
            Node rootNode = (Node)digester.parse(
                    new StringReader("<XMPInfo>" + XMPasString + "</XMPInfo>"));
            
            return getJHoveTreeNodeFromXPathNode(rootNode);

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            try {
                // object-create rules are called at the beginning element-tags, in the same order as defined 
                // first create the wrapper
                digester.addObjectCreate("*/plan/executablePlan/planWorkflow", NodeContentWrapper.class);
                // then an element for workflowConf
                digester.addRule("*/plan/executablePlan/planWorkflow/workflowConf", new NodeCreateRule()); 
                
                // CallMethod and SetNext rules are called at closing element-tags, (last in - first out!)
                
                CallMethodRule rr = new CallMethodRule(1, "setNodeContent", 2);
                digester.addRule("*/plan/executablePlan/planWorkflow/workflowConf", rr);
                // right below the wrapper is an instance of ExecutablePlanDefinition  
                digester.addCallParam("*/plan/executablePlan/planWorkflow/workflowConf", 0 , 1);
                // provide the name of the setter method
                digester.addObjectParam("*/plan/executablePlan/planWorkflow/workflowConf", 1, "setExecutablePlan");
    
                // the generated node is not accessible as CallParam (why?!?), but available for addSetNext
                digester.addSetNext("*/plan/executablePlan/planWorkflow/workflowConf", "setNode");


            } catch (ParserConfigurationException e) {
                PlatoLogger.getLogger(this.getClass()).error(e.getMessage(),e);
            }


            //
            // Import EPrints executable plan if present
            //
            try {
                
                digester.addObjectCreate("*/plan/executablePlan/eprintsPlan", NodeContentWrapper.class);
                // then an element for workflowConf
                digester.addRule("*/plan/executablePlan/eprintsPlan", new NodeCreateRule());
                
                CallMethodRule rr2 = new CallMethodRule(1, "setNodeContentEPrintsPlan", 2);
                digester.addRule("*/plan/executablePlan/eprintsPlan", rr2);
                // right below the wrapper is an instance of ExecutablePlanDefinition  
                digester.addCallParam("*/plan/executablePlan/eprintsPlan", 0 , 1);

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Related Classes of org.apache.commons.digester.NodeCreateRule

eu.planets_project.pp.plato.services.characterisation.jhove.JHoveAdaptor

eu.planets_project.pp.plato.xml.ProjectImporter

org.apache.commons.digester.xmlrules.DigesterRuleParser$NodeCreateRuleFactory

org.xml.sax.XMLReader

org.xml.sax.SAXException

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