Examples of com.volantis.mcs.eclipse.common.odom.xpath.ODOMXPath.create()

Package com.volantis.mcs.eclipse.common.odom.xpath

Class com.volantis.mcs.eclipse.common.odom.xpath.ODOMXPath

Examples of com.volantis.mcs.eclipse.common.odom.xpath.ODOMXPath.create()

com.volantis.mcs.eclipse.common.odom.xpath.ODOMXPath.create()
This method is used, iteratively, to cause the creation of a given XPath set of ODOM nodes where nodes in the XPath are missing.
Each step in processing the XPath simply takes the first component of the XPath (i.e. up to a '/' or the end of the string) and creates a sub-XPath from it. This is used to access the required node.

If not found, that sub-node is created. This could be an optionally predicated element, an attribute or an optionally predicated text node. The predicate can simply be removed before processing the remainder of the path (the required number of new instances must be created to ensure that the required predicated instance will exist).

Note: The path is for an attribute if it starts with the '@' character, a text node if it is the value "text()" and otherwise is for a named element.
@param context the ODOMElement that serves as the context ('parent'node). @param factory the ODOMFactory that will be used to create a Text,Attribute or Element node. @return the lowest node created in the path. @throws IllegalArgumentException if context is null or factory is null. @throws IllegalStateException if an attempt was made to create a nodeof an unsupported type. @throws com.volantis.mcs.xml.xpath.XPathException if the XPath cannot be applied usingthe given context (the XPath is absolute and the context element doesn't match the root step in the path) or if the XPath is erroneous (e.g. contains path steps after an attribute or text node step).

                     new ODOMXPath(newNode).getExternalForm());


        // Test creation of single additional step
        path = new ODOMXPath("a/text()");


        newNode = path.create(context, factory);


        assertTrue("New node not text (is a " +
                   newNode.getClass().getName() + ")",
                   newNode instanceof Text);

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        // This should cause the creation of a second page with a number
        // attribute
        ODOMXPath path = new ODOMXPath("catalogue/page[2]/@number");


        ODOMObservable newNode = path.create((ODOMElement) root, factory);


        assertTrue("New node not an attribute (is a " +
                   newNode.getClass().getName() + ")",
                   newNode instanceof Attribute);

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        // This should cause the creation of a new item with nested name
        // element
        path = new ODOMXPath("catalogue/page[2]/item/name");


        newNode = path.create((ODOMElement) root, factory);


        assertTrue("New node not an element (is a " +
                   newNode.getClass().getName() + ")",
                   newNode instanceof Element);

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        // This should cause the creation of a text node within the previously
        // created item's name element
        path = new ODOMXPath(path, "text()");


        newNode = path.create((ODOMElement) root, factory);


        assertTrue("New node not a text (is a " +
                   newNode.getClass().getName() + ")",
                   newNode instanceof Text);

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    public void testCreateWithAbsolutePath() throws Exception {
        ODOMXPath path = new ODOMXPath("/catalog/cd[6]/title/text()");


        // This should cause the creation of CD nodes 5 and 6 and a title
        // node within CD 6 with a nested text node
        ODOMObservable newNode = path.create((ODOMElement) root, factory);


        assertTrue("New CD title text not a text (is a " +
                   newNode.getClass().getName() + ")",
                   newNode instanceof Text);

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        // This will demonstrate invalid application of an absolute path
        // (the context is not appropriate to the absolute path because its
        // name doesn't match the first step in the absolute path)
        try {
            ODOMElement cd = (ODOMElement) root.getChild("cd");
            path.create(cd, factory);


            fail("Should have received an XPathException");
        } catch (XPathException e) {
            // Expected condition
        }

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     */
    public void testCreateSimple() throws Exception {
        // Check when element does not exist.
        String elementName = "newElement";
        ODOMXPath path = new ODOMXPath(elementName);
        ODOMObservable result = path.create((ODOMElement) root, factory);
        assertNotNull("Result should not be null", result);
        assertTrue("Type should match", result instanceof Element);
        assertEquals("Value should match", elementName,
                     ((Element) result).getName());

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        assertEquals("Value should match", elementName,
                     ((Element) result).getName());


        // Check when attribute does not exist.
        path = new ODOMXPath("newElement/@attribute");
        result = path.create((ODOMElement) root, factory);
        assertNotNull("Result should not be null", result);
        assertTrue("Type should match", result instanceof Attribute);
        assertEquals("Value should match", "attribute",
                     ((Attribute) result).getName());
        assertEquals("Value should match", "",

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        assertEquals("Value should match", "",
                     ((Attribute) result).getValue());


        // Check when text does not exist.
        path = new ODOMXPath("newElement/text()");
        result = path.create((ODOMElement) root, factory);


        assertNotNull("Result should not be null", result);
        assertTrue("Type should match", result instanceof Text);
        assertEquals("Value should match", "",
                     ((Text) result).getText());

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        // Check when element does not exist.
        String elementName = "ns1:newElement/notNamespaced/ns1:namespaced";
        ODOMXPath path = new ODOMXPath(elementName);
        ODOMObservable result = null;
        try {
            result = path.create((ODOMElement) root, factory);
            fail("Expected IllegalStateException (no namespaces set)");
        } catch (IllegalStateException e) {
        }
        path = new ODOMXPath(elementName, NAMESPACES);
        result = path.create((ODOMElement) root, factory);

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