Examples of org.w3c.dom.DocumentFragment

org.w3c.dom.DocumentFragment
DocumentFragment is a "lightweight" or "minimal" Document object. It is very common to want to be able to extract a portion of a document's tree or to create a new fragment of a document. Imagine implementing a user command like cut or rearranging a document by moving fragments around. It is desirable to have an object which can hold such fragments and it is quite natural to use a Node for this purpose. While it is true that a Document object could fulfill this role, a Document object can potentially be a heavyweight object, depending on the underlying implementation. What is really needed for this is a very lightweight object. DocumentFragment is such an object.
Furthermore, various operations -- such as inserting nodes as children of another Node -- may take DocumentFragment objects as arguments; this results in all the child nodes of the DocumentFragment being moved to the child list of this node.
The children of a DocumentFragment node are zero or more nodes representing the tops of any sub-trees defining the structure of the document. DocumentFragment nodes do not need to be well-formed XML documents (although they do need to follow the rules imposed upon well-formed XML parsed entities, which can have multiple top nodes). For example, a DocumentFragment might have only one child and that child node could be a Text node. Such a structure model represents neither an HTML document nor a well-formed XML document.
When a DocumentFragment is inserted into a Document (or indeed any other Node that may take children) the children of the DocumentFragment and not the DocumentFragment itself are inserted into the Node . This makes the DocumentFragment very useful when the user wishes to create nodes that are siblings; the DocumentFragment acts as the parent of these nodes so that the user can use the standard methods from the Node interface, such as insertBefore and appendChild .

        }


        Map    originalProfile;
        Map    baseProfile;
        String baseType, baseRole, baseID, rootElementName;
        DocumentFragment originalFragment;
        DocumentFragment delta;
        SessionContext context = this.getContext(true);


        originalProfile = this.retrieveProfile(this.getProfileID(type, role, id, adminProfile));
        if (originalProfile == null) {
            throw new ProcessingException("buildProfileDelta: no profile found for " +
                   type + " - " + role + " - " + id + ".");
        }


        if (type.equals(PortalManager.BUILDTYPE_VALUE_ID) == true) {
            baseType = PortalManager.BUILDTYPE_VALUE_ROLE;
            baseRole = role;
            baseID   = null;
            rootElementName = "user-delta";
        } else if (type.equals(PortalManager.BUILDTYPE_VALUE_ROLE) == true) {
            baseType = PortalManager.BUILDTYPE_VALUE_GLOBAL;
            baseRole = null;
            baseID   = null;
            rootElementName = "role-delta";
        } else if (type.equals(PortalManager.BUILDTYPE_VALUE_GLOBAL) == true) {
            baseType = PortalManager.BUILDTYPE_VALUE_BASIC;
            baseRole = null;
            baseID   = null;
            rootElementName = "global-delta";
        } else {
            throw new ProcessingException("buildProfileDelta: type '"+type+"' not allowed.");
        }


        // the profile is created as we dont want to use any memory representation!
        this.createProfile(context, baseType, baseRole, baseID, adminProfile);
        baseProfile = this.retrieveProfile(this.getProfileID(baseType, baseRole, baseID, adminProfile));
        if (baseProfile == null) {
            throw new ProcessingException("buildProfileDelta: no baseProfile found.");
        }


        originalFragment = (DocumentFragment)originalProfile.get(PortalConstants.PROFILE_PROFILE);
        delta = originalFragment.getOwnerDocument().createDocumentFragment();
        delta.appendChild(delta.getOwnerDocument().createElementNS(null, rootElementName));


        // Copy portal content
        Node profileDelta = DOMUtil.getFirstNodeFromPath(originalFragment, new String[] {"profile","portal-profile"}, false).cloneNode(true);
        delta.getFirstChild().appendChild(profileDelta);


        // Diff layout profile, coplet profile, personal profile but not status profile!
        this.diff(originalFragment,
                 (DocumentFragment)baseProfile.get(PortalConstants.PROFILE_PROFILE),
                  "profile/layout-profile",
                  (Element)delta.getFirstChild());
        this.diff(originalFragment,
                  (DocumentFragment)baseProfile.get(PortalConstants.PROFILE_PROFILE),
                  "profile/coplets-profile",
                  (Element)delta.getFirstChild());
        if (type.equals(PortalManager.BUILDTYPE_VALUE_GLOBAL) == true) {
            profileDelta = DOMUtil.getFirstNodeFromPath(originalFragment, new String[] {"profile","personal-profile"}, false).cloneNode(true);
            delta.getFirstChild().appendChild(profileDelta);
        } else {
            this.diff(originalFragment,
                  (DocumentFragment)baseProfile.get(PortalConstants.PROFILE_PROFILE),
                  "profile/personal-profile",
                  (Element)delta.getFirstChild());
        }


        // check for the highes coplet number
        Node[] miscNodes = (Node[])originalProfile.get(PortalConstants.PROFILE_MISC_POINTER);
        Element lastCoplet = (Element)miscNodes[PortalConstants.PROFILE_MISC_LAST_COPLET_NODE];

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    throws ProcessingException {
        // calling method is synced
        if (this.getLogger().isDebugEnabled() == true) {
            this.getLogger().debug("BEGIN buildGlobalProfile profileRoot="+profileRoot+", config="+config+", adminProfile="+adminProfile);
        }
        DocumentFragment globalFragment;
        String res = (String)config.get(PortalConstants.CONF_GLOBALDELTA_LOADRESOURCE);
        if (res == null) {
            throw new ProcessingException("No configuration for portal-role delta profile found.");
        }
        SourceParameters pars = new SourceParameters();

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                                            String role,
                                            boolean adminProfile)
    throws ProcessingException {
        // calling method is synced


        DocumentFragment roleFragment;
        SourceParameters pars;
        pars = new SourceParameters();
        pars.setSingleParameterValue("role", role);
        pars.setSingleParameterValue("application", this.getAuthenticationManager().getApplicationName());
        pars.setSingleParameterValue("handler", this.getAuthenticationManager().getHandlerName());

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                                String role,
                                String id,
                                boolean adminProfile)
    throws ProcessingException {
        // calling method is synced
        DocumentFragment userFragment;
        SourceParameters pars;
        pars = new SourceParameters();
        pars.setSingleParameterValue("ID", id);
        pars.setSingleParameterValue("role", role);
        pars.setSingleParameterValue("application", this.getAuthenticationManager().getApplicationName());

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        if (statusProfile != null) {
            profileRoot.removeChild(statusProfile);
        }


        if (res != null) {
            DocumentFragment userFragment;
            SourceParameters pars;
            pars = new SourceParameters();
            pars.setSingleParameterValue("ID", id);
            pars.setSingleParameterValue("role", role);
            pars.setSingleParameterValue("application", this.getAuthenticationManager().getApplicationName());

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        // calling method is synced
        String res = (String)config.get(PortalConstants.CONF_STATUS_SAVERESOURCE);
        Element statusProfile = (Element)DOMUtil.getFirstNodeFromPath((DocumentFragment)profile.get(PortalConstants.PROFILE_PROFILE),
                         new String[] {"profile","status-profile"}, false);
        if (res != null && statusProfile != null) {
            DocumentFragment userFragment = statusProfile.getOwnerDocument().createDocumentFragment();
            Element saveStatus = (Element)statusProfile.cloneNode(true);
            userFragment.appendChild(saveStatus);
            // now filter all not persistent coplets!
            NodeList list = DOMUtil.getNodeListFromPath(saveStatus, new String[] {"customization","coplet"});
            String copletID;
            Element coplet;
            Element copletConfig;
            Map copletConfigs = (Map)profile.get(PortalConstants.PROFILE_DEFAULT_COPLETS);
            Map mediaCopletConfigs = (Map)profile.get(PortalConstants.PROFILE_MEDIA_COPLETS);
            boolean isPersistent;
            for(int i = 0; i < list.getLength(); i++) {
                coplet = (Element)list.item(i);
                copletID = coplet.getAttributeNS(null, "id");
                copletConfig = this.getCopletConfiguration(copletID, copletConfigs, mediaCopletConfigs);
                isPersistent = DOMUtil.getValueAsBooleanOf(copletConfig, "configuration/persistent", false);
                if (isPersistent == false) {
                    coplet.getParentNode().removeChild(coplet);
                }
            }


            try {


                SourceParameters pars;
                pars = new SourceParameters();
                pars.setSingleParameterValue("ID", id);
                pars.setSingleParameterValue("role", role);
                pars.setSingleParameterValue("application", this.getAuthenticationManager().getApplicationName());
                pars.setSingleParameterValue("handler", this.getAuthenticationManager().getHandlerName());
                pars.setSingleParameterValue("profile", "user-status");


                SourceUtil.writeDOM(res, 
                                   null, 
                                   pars,
                                   userFragment, 
                                   this.resolver, 
                                   "xml");


            } finally {
                userFragment.removeChild(saveStatus);
            }
        }
    }

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   *
   * @return the objec as a result tree fragment.
   */
  public DocumentFragment rtree(XPathContext support)
  {
    DocumentFragment docFrag = null;
    int result = rtf();


    if (DTM.NULL == result)
    {
      DTM frag = support.createDocumentFragment();

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                forPattern( "root" ).createNode().ofType( NodeType.DOCUMENT_FRAGMENT );
            }


        }).newDigester();


        DocumentFragment fragment = digester.parse( new StringReader( TEST_XML ) );


        assertNotNull( fragment );
        assertEquals( 4, fragment.getChildNodes().getLength() );


        Node rootBody = fragment.getFirstChild();
        assertEquals( Node.TEXT_NODE, rootBody.getNodeType() );
        assertEquals( "ROOT BODY", rootBody.getNodeValue() );


        Node alpha = fragment.getChildNodes().item( 1 );
        assertEquals( Node.ELEMENT_NODE, alpha.getNodeType() );
        assertEquals( "alpha", alpha.getNodeName() );
        assertNull( ( (Element) alpha ).getLocalName() );
        assertNull( ( (Element) alpha ).getNamespaceURI() );
        assertEquals( 1, alpha.getChildNodes().getLength() );
        assertEquals( "ALPHA BODY", alpha.getFirstChild().getNodeValue() );


        Node beta = fragment.getChildNodes().item( 2 );
        assertEquals( Node.ELEMENT_NODE, beta.getNodeType() );
        assertEquals( "beta", beta.getNodeName() );
        assertNull( ( (Element) beta ).getLocalName() );
        assertNull( ( (Element) beta ).getNamespaceURI() );
        assertEquals( 1, beta.getChildNodes().getLength() );
        assertEquals( "BETA BODY", beta.getFirstChild().getNodeValue() );


        Node gamma = fragment.getChildNodes().item( 3 );
        assertEquals( Node.ELEMENT_NODE, gamma.getNodeType() );
        assertEquals( "gamma", gamma.getNodeName() );
        assertNull( ( (Element) gamma ).getLocalName() );
        assertNull( ( (Element) gamma ).getNamespaceURI() );
        assertEquals( 1, gamma.getChildNodes().getLength() );

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        assertNotNull( list );
        assertEquals( 2, list.size() );


        assertTrue( list.get( 0 ) instanceof DocumentFragment );
        DocumentFragment fragment = (DocumentFragment) list.get( 0 );


        assertEquals( Node.ELEMENT_NODE, fragment.getFirstChild().getNodeType() );
        Element a = (Element) fragment.getFirstChild();
        assertEquals( "a", a.getNodeName() );
        assertEquals( 1, a.getAttributes().getLength() );
        assertEquals( "THREE", a.getAttribute( "name" ) );


        assertTrue( list.get( 1 ) instanceof String );

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                forPattern( "employee" ).createNode().ofType( NodeType.DOCUMENT_FRAGMENT );
            }


        }).newDigester();


        DocumentFragment fragment = digester.parse( getInputStream( "Test1.xml" ) );


        assertNotNull( fragment );
        assertEquals( 2, fragment.getChildNodes().getLength() );


        assertEquals( Node.ELEMENT_NODE, fragment.getFirstChild().getNodeType() );
        Element address1 = (Element) fragment.getFirstChild();
        assertEquals( "address", address1.getNodeName() );
        assertEquals( 5, address1.getAttributes().getLength() );
        assertEquals( "home", address1.getAttribute( "type" ) );
        assertEquals( "Home Street", address1.getAttribute( "street" ) );
        assertEquals( "Home City", address1.getAttribute( "city" ) );
        assertEquals( "HS", address1.getAttribute( "state" ) );
        assertEquals( "HmZip", address1.getAttribute( "zipCode" ) );


        assertEquals( Node.ELEMENT_NODE, fragment.getLastChild().getNodeType() );
        Element address2 = (Element) fragment.getLastChild();
        assertEquals( "address", address2.getNodeName() );
        assertEquals( 5, address2.getAttributes().getLength() );
        assertEquals( "office", address2.getAttribute( "type" ) );
        assertEquals( "Office Street", address2.getAttribute( "street" ) );
        assertEquals( "Office City", address2.getAttribute( "city" ) );

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