Java XML Child Element Create hasActivityChildNodeWithCreateInstanceSet(Node node)

Description

has Activity Child Node With Create Instance Set

License

Open Source License

Declaration

public static boolean hasActivityChildNodeWithCreateInstanceSet(Node node) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.Collection;

import java.util.HashSet;

import org.w3c.dom.Node;
import org.w3c.dom.Text;

public class Main {
    public static final Collection<String> BPEL_ACTIVITIES = new HashSet<String>() {
        private static final long serialVersionUID = -1626491688586809929L;
        {/*from w  w w .  j av a 2s.c o m*/
            add("invoke");
            add("receive");
            add("reply");
            add("wait");
            add("exit");
            add("empty");
            add("throw");
            add("rethrow");
            add("validate");
            add("assign");
            add("compensate");
            add("compensatescope");
            add("pick");
            add("onmessage");
            add("onalarm");
            add("sequence");
            add("while");
            add("repeatuntil");
            add("foreach");
            add("flow");
            add("scope");
        }
    };

    public static boolean hasActivityChildNodeWithCreateInstanceSet(Node node) {
        boolean result = false;
        for (Node child : getAllActivityChildNodesRecursively(node)) {
            if (isCreateInstanceSet(child))
                result = true;
        }
        return result;
    }

    /**
     * Get all child nodes that represent BPEL activities. This function
     * recursively iterates over all child nodes of the given node.
     * 
     * @param node
     * @return 
     */
    public static Collection<Node> getAllActivityChildNodesRecursively(Node node) {
        Collection<Node> returnNodes = new HashSet<Node>();

        if (node == null)
            return returnNodes;

        for (Node child = node.getFirstChild(); child != null; child = child.getNextSibling()) {
            if (!(child instanceof Text)) {
                if (BPEL_ACTIVITIES.contains(child.getNodeName())) {
                    returnNodes.add(child);
                    returnNodes.addAll(getAllActivityChildNodesRecursively(child));
                }
            }
        }

        return returnNodes;
    }

    /**
     * Checks whether the optional attribute createInstance is set for 
     * a specific node. That relates to receive and pick activities.
     * 
     * @param node
     * @return whether the attribute createInstance is set
     */
    public static boolean isCreateInstanceSet(Node node) {
        boolean createInstance = false;
        if (node.getAttributes().getNamedItem("createInstance") != null) {
            if (node.getAttributes().getNamedItem("createInstance").getNodeValue().equalsIgnoreCase("yes"))
                createInstance = true;
        }
        return createInstance;
    }
}

Related

1. createChildElement(String tagName, Element parentElement)
2. createTextChild(Node elem, String elemName, Boolean text)
3. getChildElementByChain(Element element, String[] chain, boolean create)
4. getOrCreateChildNode(IIOMetadataNode parentNode, String name)
5. getOrCreateFirstTextChild(Element node)