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 .

        }
        if ((name.equals(INSERT_ELEMENT) && this.state == STATE_INSERT)
            || (name.equals(WRITE_ELEMENT) && this.state == STATE_WRITE)) {


            // get the information from the stack
            DocumentFragment fragment  = null;
            String tag;
            String sourceName    = null;
            String path        = (this.state == STATE_INSERT ? null : "/");
                                 // source:write's path can be empty
            String replacePath = null;

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        try {
            source = SourceUtil.getSource(location, typeParameters,
                                          parameters, resolver);
            Document doc = SourceUtil.toDOM(source);
            DocumentFragment fragment = doc.createDocumentFragment();


            fragment.appendChild(doc.getDocumentElement());


            return fragment;
        } catch (SourceException se) {
            throw SourceUtil.handle(se);
        } catch (IOException ce) {

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        builder.endElement("", "cocoon", "cocoon");
        builder.endDocument();


        // Create Document Fragment
        final Document doc = builder.getDocument();
        final DocumentFragment recordedDocFrag = doc.createDocumentFragment();
        final Node root = doc.getDocumentElement();
        root.normalize();
        Node child;
        boolean appendedNode = false;
        while (root.hasChildNodes() == true) {
            child = root.getFirstChild();
            root.removeChild(child);
            // Leave out empty text nodes before any other node
            if (appendedNode == true
                || child.getNodeType() != Node.TEXT_NODE
                || child.getNodeValue().trim().length() > 0) {
                recordedDocFrag.appendChild(child);
                appendedNode = true;
            }
        }


        if (this.getLogger().isDebugEnabled() == true) {

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    public String endSerializedXMLRecording()
    throws SAXException, ProcessingException {
        if (this.getLogger().isDebugEnabled() == true) {
            this.getLogger().debug("BEGIN endSerializedXMLRecording");
        }
        DocumentFragment fragment = this.endRecording();
        String text = XMLUtils.serializeNode(fragment, (Properties)this.stack.pop());
        if (this.getLogger().isDebugEnabled() == true) {
            this.getLogger().debug("END endSerializedXMLRecording xml="+text);
        }
        return text;

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    /**
     * Get the xml fragment
     */
    public synchronized DocumentFragment getXML(String path)
    throws ProcessingException {
        DocumentFragment result = null;


        if (path.startsWith("/") == true) path = path.substring(1);
        NodeList list = null;


        if (path == null || path.equals("") == true) {
            Document doc = DOMUtil.createDocument();
            result = doc.createDocumentFragment();
            this.getLayoutDOM();
            if (this.layoutDOM != null) {
                result.appendChild(doc.importNode(this.layoutDOM.getDocumentElement(), true));
            }
            if (this.configurationDOM != null) {
                result.appendChild(doc.importNode(this.configurationDOM.getDocumentElement(), true));
            }


            if (this.statusProfile != null) {
                if (this.copletID != null && this.copletNumber != null) {
                    String statusPath = "customization/coplet[@id='"+copletID+"' and @number='"+copletNumber+"']";
                    try {
                        Node node = DOMUtil.getSingleNode(this.statusProfile, statusPath);
                        if (node != null) {
                            Element copletData = doc.createElementNS(null, "coplet-data");
                            NodeList childs = node.getChildNodes();
                            if (childs != null) {
                                for(int l=0; l<childs.getLength(); l++) {
                                    copletData.appendChild(doc.importNode(childs.item(l), true));
                                }
                            }
                            result.appendChild(copletData);
                        }
                    } catch (javax.xml.transform.TransformerException localException) {
                        throw new ProcessingException("TransformerException: " + localException, localException);
                    }
                }
            }
        }


        if (path.equals("layout") == true
            || path.startsWith("layout/") == true) {
            try {
                this.getLayoutDOM();
                if (this.layoutDOM != null) list = DOMUtil.selectNodeList(this.layoutDOM, path);
            } catch (javax.xml.transform.TransformerException localException) {
                throw new ProcessingException("TransformerException: " + localException, localException);
            }
        }


        if (path.equals("configuration") == true
            || path.startsWith("configuration/") == true) {
            try {
                if (this.configurationDOM != null) list = DOMUtil.selectNodeList(this.configurationDOM, path);
            } catch (javax.xml.transform.TransformerException localException) {
                throw new ProcessingException("TransformerException: " + localException, localException);
            }
        }


        if (path.startsWith("coplet-data/") == true
            || path.equals("coplet-data") == true) {


            if (this.statusProfile != null) {
                if (this.copletID != null && this.copletNumber != null) {
                    String statusPath = "customization/coplet[@id='"+copletID+"' and @number='"+copletNumber+"']";
                    if (path.startsWith("coplet-data/") == true) {
                        statusPath = statusPath + path.substring(11);
                    }
                    try {
                        list = DOMUtil.selectNodeList(this.statusProfile, statusPath);
                    } catch (javax.xml.transform.TransformerException localException) {
                        throw new ProcessingException("TransformerException: " + localException, localException);
                    }
                }
            }
        }


        if (list != null && list.getLength() > 0) {
            Document doc = DOMUtil.createDocument();
            result = doc.createDocumentFragment();


            for(int i = 0; i < list.getLength(); i++) {


                // the found node is either an attribute or an element
                if (list.item(i).getNodeType() == Node.ATTRIBUTE_NODE) {
                    // if it is an attribute simple create a new text node with the value of the attribute
                    result.appendChild(doc.createTextNode(list.item(i).getNodeValue()));
                } else {
                    // now we have an element
                    // copy all children of this element in the resulting tree
                    NodeList childs = list.item(i).getChildNodes();
                    if (childs != null) {
                        for(int m = 0; m < childs.getLength(); m++) {
                            result.appendChild(doc.importNode(childs.item(m), true));
                        }
                    }
                }
            }
        }

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    public synchronized boolean streamXML(String path,
                           ContentHandler contentHandler,
                           LexicalHandler lexicalHandler)
    throws SAXException, ProcessingException {
        boolean  streamed = false;
        DocumentFragment fragment = this.getXML(path);
        if (fragment != null) {
            streamed = true;
            IncludeXMLConsumer.includeNode(fragment, contentHandler, lexicalHandler);
        }
        return streamed;

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            SessionContext context = this.getContext(true);


            Map configuration = this.getConfiguration();


            DocumentFragment copletsFragment = (DocumentFragment)context.getAttribute(ATTRIBUTE_ADMIN_COPLETS);
            String command = this.request.getParameter(PortalManager.REQ_PARAMETER_ADMIN_COPLETS);
            if (command != null && copletsFragment != null) {
                try {
                    this.getSessionManager().startWritingTransaction(context);
                    // save : save coplets base
                    // new  : new coplet
                    // delete : use id to delete coplet
                    // change : change the coplet
                    //        cache : cleans the cache
                    if (command.equals("delete") == true && copletID != null) {
                        Node coplet = DOMUtil.getSingleNode(copletsFragment, "coplets-profile/coplets/coplet[@id='"+copletID+"']");
                        if (coplet != null) {
                            coplet.getParentNode().removeChild(coplet);
                        }
                    } else if (command.equals("change") == true && copletID != null) {
                        Node coplet = DOMUtil.getSingleNode(copletsFragment, "coplets-profile/coplets/coplet[@id='"+copletID+"']");
                        if (coplet != null) {
                            // now get the information
                            String value;


                            value = this.request.getParameter("portaladmin_title");
                            if (value != null) DOMUtil.setValueOfNode(DOMUtil.getSingleNode(coplet, "title"), value);


                            value = this.request.getParameter("portaladmin_mand");
                            if (value != null) DOMUtil.setValueOfNode(DOMUtil.getSingleNode(coplet, "configuration/mandatory"), value);


                            value = this.request.getParameter("portaladmin_sizable");
                            if (value != null) DOMUtil.setValueOfNode(DOMUtil.getSingleNode(coplet, "configuration/sizable"), value);


                            value = this.request.getParameter("portaladmin_active");
                            if (value != null) DOMUtil.setValueOfNode(DOMUtil.getSingleNode(coplet, "configuration/active"), value);


                            value = this.request.getParameter("portaladmin_handsize");
                            if (value != null) DOMUtil.setValueOfNode(DOMUtil.selectSingleNode(coplet, "configuration/handlesSizable"), value);


                            value = this.request.getParameter("portaladmin_handpar");
                            if (value != null) DOMUtil.setValueOfNode(DOMUtil.selectSingleNode(coplet, "configuration/handlesParameters"), value);


                            value = this.request.getParameter("portaladmin_timeout");
                            if (value != null) DOMUtil.setValueOfNode(DOMUtil.selectSingleNode(coplet, "configuration/timeout"), value);


                            value = this.request.getParameter("portaladmin_customizable");
                            if (value != null) DOMUtil.setValueOfNode(DOMUtil.selectSingleNode(coplet, "configuration/customizable"), value);


                            value = this.request.getParameter("portaladmin_persistent");
                            if (value != null) DOMUtil.setValueOfNode(DOMUtil.selectSingleNode(coplet, "configuration/persistent"), value);


                            String resource = this.request.getParameter("portaladmin_resource");
                            if (resource != null) {
                                Element resourceNode = (Element)DOMUtil.getSingleNode(coplet, "resource");
                                resourceNode.getParentNode().removeChild(resourceNode);
                                resourceNode = coplet.getOwnerDocument().createElementNS(null, "resource");
                                resourceNode.setAttributeNS(null, "uri", resource);
                                coplet.appendChild(resourceNode);
                            }
                            resource = this.request.getParameter("portaladmin_cust");
                            boolean isCustom = DOMUtil.getValueAsBooleanOf(coplet, "configuration/customizable", false);
                            if (resource != null && isCustom == true) {
                                Element resourceNode = (Element)DOMUtil.getSingleNode(coplet, "customization");
                                if (resourceNode != null) resourceNode.getParentNode().removeChild(resourceNode);
                                resourceNode = coplet.getOwnerDocument().createElementNS(null, "customization");
                                resourceNode.setAttributeNS(null, "uri", resource);
                                coplet.appendChild(resourceNode);
                            }
                            if (isCustom == false) {
                                Element resourceNode = (Element)DOMUtil.getSingleNode(coplet, "customization");
                                if (resourceNode != null) resourceNode.getParentNode().removeChild(resourceNode);
                            }


                            // transformations
                            value = this.request.getParameter("portaladmin_newxsl");
                            if (value != null) {
                                Element tNode = (Element)DOMUtil.selectSingleNode(coplet, "transformation");
                                Element sNode = tNode.getOwnerDocument().createElementNS(null, "stylesheet");
                                tNode.appendChild(sNode);
                                sNode.appendChild(sNode.getOwnerDocument().createTextNode(value));
                            }


                            // now get all transformation stylesheets, mark
                            // all stylesheets which should be deleted with
                            // an attribute delete
                            Enumeration keys = this.request.getParameterNames();
                            Element sNode;
                            String key;
                            while (keys.hasMoreElements() == true) {
                                key = (String)keys.nextElement();
                                if (key.startsWith("portaladmin_xsl_") == true) {
                                    value = key.substring(key.lastIndexOf('_')+ 1);
                                    sNode = (Element)DOMUtil.getSingleNode(coplet, "transformation/stylesheet[position()="+value+"]");
                                    if (sNode != null) {
                                        String xslName = this.request.getParameter(key);
                                        if (xslName.equals("true") == true) xslName = "**STYLESHEET**";
                                        DOMUtil.setValueOfNode(sNode, xslName);
                                    }
                                } else if (key.startsWith("portaladmin_delxsl_") == true) {
                                    value = key.substring(key.lastIndexOf('_')+ 1);
                                    sNode = (Element)DOMUtil.getSingleNode(coplet, "transformation/stylesheet[position()="+value+"]");
                                    if (sNode != null) {
                                        sNode.setAttributeNS(null, "delete", "true");
                                    }
                                }
                            }
                            NodeList delete = DOMUtil.selectNodeList(coplet, "transformation/stylesheet[@delete]");
                            if (delete != null) {
                                for(int i=0; i < delete.getLength(); i++) {
                                    delete.item(i).getParentNode().removeChild(delete.item(i));
                                }
                            }
                        }
                    } else if (command.equals("new") == true) {
                        // first we have to invent a new coplet id!
                        int index = 0;
                        boolean found = false;
                        Element coplet;
                        Element subNode;


                        while (found == false) {
                            copletID = "S"+index;
                            coplet = (Element)DOMUtil.getSingleNode(copletsFragment, "coplets-profile/coplets/coplet[@id='"+copletID+"']");
                            if (coplet == null) {
                                found = true;
                            } else {
                                index++;
                            }
                        }
                        coplet = copletsFragment.getOwnerDocument().createElementNS(null, "coplet");
                        coplet.setAttributeNS(null, "id", copletID);
                        subNode = coplet.getOwnerDocument().createElementNS(null, "resource");
                        coplet.appendChild(subNode);
                        subNode.setAttributeNS(null, "uri", "uri_in_sitemap");

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                  (String)context.getAttribute(PortalManager.ATTRIBUTE_PORTAL_ID), false);
            storedProfile = this.retrieveProfile(profileID);
        }


        if (storedProfile != null) {
            DocumentFragment profile = (DocumentFragment)storedProfile.get(PortalConstants.PROFILE_PROFILE);
            try {
                statusProfile = (Element)DOMUtil.getSingleNode(profile, "profile/status-profile");
            } catch (javax.xml.transform.TransformerException ignore) {
            }
        }

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                ", profile="+storedProfile);
        }
        try {
            this.getSessionManager().startReadingTransaction(context);


            DocumentFragment profile;
            Map              defaultCoplets;
            Map              mediaCoplets;
            Map              portalLayouts;
            Map              copleyLayouts;
            Node[]           miscNodes;

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                        theProfile = new HashMap(8,2);
                        doBase = true;
                    }


                    Element          profileRoot;
                    DocumentFragment profile;


                    if (doBase == true) {
                        // build the base level
                        profile = this.buildBaseProfile(config, adminProfile);
                        profileRoot = (Element)profile.getFirstChild();
                        theProfile.put(PortalConstants.PROFILE_PROFILE, profile);
                        this.cacheProfile(this.getProfileID(PortalManager.BUILDTYPE_VALUE_BASIC, null, null, adminProfile), theProfile, config);
                    } else {
                        profile = (DocumentFragment)theProfile.get(PortalConstants.PROFILE_PROFILE);
                        profileRoot = (Element)profile.getFirstChild();
                    }


                    // load the global delta if type is global, role or user (but not basic!)
                    if (doGlobal == true) {
                        this.buildGlobalProfile(profileRoot, config, adminProfile);
                        this.cacheProfile(this.getProfileID(PortalManager.BUILDTYPE_VALUE_GLOBAL, null, null, adminProfile), theProfile, config);
                    }


                    // load the role delta if type is role or user
                    if (doRole == true) {
                        this.buildRoleProfile(profileRoot, config, role, adminProfile);
                        this.cacheProfile(this.getProfileID(PortalManager.BUILDTYPE_VALUE_ROLE, role, null, adminProfile), theProfile, config);
                    }


                    // load the user delta if type is user
                    if (doID == true) {
                        this.buildUserProfile(profileRoot, config, role, id, adminProfile);
                    }


                    // load the status profile when type is user
                    if (type.equals(PortalManager.BUILDTYPE_VALUE_ID) == true) {
                        this.buildUserStatusProfile(profileRoot, config, role, id, adminProfile);
                    }


                    if (type.equals(PortalManager.BUILDTYPE_VALUE_BASIC) == false) {
                        this.buildRunProfile(theProfile, context, profile);


                        theProfile.put(PortalConstants.PROFILE_PORTAL_LAYOUTS,
                               this.buildPortalLayouts(context, profile));
                        theProfile.put(PortalConstants.PROFILE_COPLET_LAYOUTS,
                               this.buildcopleyLayouts(context, profile));


                        this.buildTypeProfile(theProfile, context, profile);
                    }


                    // cache the profile, if user
                    if (doID == true) {
                        this.cacheProfile(profileID, theProfile, config);
                    }
                } else {
                    // load the status profile when type is user
                    if (type.equals(PortalManager.BUILDTYPE_VALUE_ID) == true) {
                        DocumentFragment profile = (DocumentFragment)theProfile.get(PortalConstants.PROFILE_PROFILE);
                        Element profileRoot = (Element)profile.getFirstChild();
                        this.buildUserStatusProfile(profileRoot, config, role, id, adminProfile);
                    }
                }


                // store the whole profile

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