Examples with XPath org.dom4j.XPath used on opensource projects

Example 11 with XPath

use of org.dom4j.XPath in project tdi-studio-se by Talend.

the class DocumentExtractor method getStructureResult.

public List<String> getStructureResult(String structureName, List<String> names) {
    final String finalStructureName = replaceNamespace(structureName);
    XPath xpath = org.dom4j.DocumentHelper.createXPath(sb.append("/").append(finalFunction).append("/OUTPUT/").append(finalStructureName).append("|").append("/").append(finalFunction).append("/CHANGING/").append(finalStructureName).toString());
    sb.setLength(0);
    Node node = xpath.selectSingleNode(doc);
    if (node == null) {
        return null;
    }
    List<String> result = new ArrayList<String>();
    for (String name : names) {
        final String finalName = replaceNamespace(name);
        Node subNode = node.selectSingleNode(finalName);
        if (subNode == null) {
            result.add(null);
        } else {
            result.add(subNode.getText());
        }
    }
    return result;
}

Example 12 with XPath

use of org.dom4j.XPath in project OpenOLAT by OpenOLAT.

the class ItemContext method shuffle.

/**
 * Method shuffle. shuffle clones the current item (since the whole qti tree
 * is readonly) and shuffles it
 *
 * @param item
 * @return Element
 */
private Element shuffle(Element item) {
    // get the render_choice
    XPath choice = DocumentHelper.createXPath(".//render_choice[@shuffle=\"Yes\"]");
    Element tel_rendchoice = (Element) choice.selectSingleNode(item);
    // if shuffle is disable, just return the item
    if (tel_rendchoice == null)
        return item;
    // else: we have to shuffle
    // assume: all response_label have same parent: either render_choice or a
    // flow_label
    Element shuffleItem = item.createCopy();
    // clone the whole item
    Element el_rendchoice = (Element) choice.selectSingleNode(shuffleItem);
    // <!ELEMENT render_choice ((material | material_ref | response_label |
    // flow_label)* ,response_na?)>
    // <!ATTLIST response_label rshuffle (Yes | No ) 'Yes' .....
    List el_labels = el_rendchoice.selectNodes(".//response_label[@rshuffle=\"Yes\"]");
    int shusize = el_labels.size();
    // set up a list of children with their parents and the position of the
    // child (in case several children have the same parent
    List<Element> respList = new ArrayList<>(shusize);
    List<Element> parentList = new ArrayList<>(shusize);
    int[] posList = new int[shusize];
    int j = 0;
    for (Iterator responses = el_labels.iterator(); responses.hasNext(); ) {
        Element response = (Element) responses.next();
        Element parent = response.getParent();
        int pos = parent.indexOf(response);
        posList[j++] = pos;
        // need to use clones so they are not
        respList.add((Element) response.clone());
        // attached anymore
        parentList.add(parent);
    }
    Collections.shuffle(respList);
    // put the children back to the parents
    for (int i = 0; i < parentList.size(); i++) {
        Element parent = parentList.get(i);
        int pos = posList[i];
        Element child = respList.get(i);
        parent.elements().set(pos, child);
    }
    return shuffleItem;
}

Example 13 with XPath

use of org.dom4j.XPath in project OpenOLAT by OpenOLAT.

the class ScormCPFileResource method validateImsManifest.

public static boolean validateImsManifest(Document doc) {
    try {
        // do not throw exception already here, as it might be only a generic zip file
        if (doc == null)
            return false;
        String adluri = null;
        String seqencingUri = null;
        String simpleSeqencingUri = null;
        // get all organization elements. need to set namespace
        Element rootElement = doc.getRootElement();
        String nsuri = rootElement.getNamespace().getURI();
        // look for the adl cp namespace that differs a scorm package from a normal cp package
        Namespace nsADL = rootElement.getNamespaceForPrefix("adlcp");
        if (nsADL != null)
            adluri = nsADL.getURI();
        Namespace nsADLSeq = rootElement.getNamespaceForPrefix("adlseq");
        if (nsADLSeq != null)
            seqencingUri = nsADLSeq.getURI();
        Namespace nsADLSS = rootElement.getNamespaceForPrefix("imsss");
        if (nsADLSS != null)
            simpleSeqencingUri = nsADLSS.getURI();
        // we can only support scorm 1.2 so far.
        if (adluri != null && !((adluri.indexOf("adlcp_rootv1p2") != -1) || (adluri.indexOf("adlcp_rootv1p3") != -1))) {
            // we dont have have scorm 1.2 or 1.3 namespace so it can't be a scorm package
            return false;
        }
        Map<String, Object> nsuris = new HashMap<>(5);
        nsuris.put("ns", nsuri);
        // we might have a scorm 2004 which we do not yet support
        if (seqencingUri != null)
            nsuris.put("adlseq", seqencingUri);
        if (simpleSeqencingUri != null)
            nsuris.put("imsss", simpleSeqencingUri);
        // Check for organization element. Must provide at least one... title gets extracted from either
        // the (optional) <title> element or the mandatory identifier attribute.
        // This makes sure, at least a root node gets created in CPManifestTreeModel.
        XPath meta = rootElement.createXPath("//ns:organization");
        meta.setNamespaceURIs(nsuris);
        // TODO: accept several organizations?
        Element orgaEl = (Element) meta.selectSingleNode(rootElement);
        if (orgaEl == null) {
            return false;
        }
        // Check for at least one <item> element referencing a <resource> of adlcp:scormtype="sco" or "asset",
        // which will serve as an entry point.
        XPath resourcesXPath = rootElement.createXPath("//ns:resources");
        resourcesXPath.setNamespaceURIs(nsuris);
        Element elResources = (Element) resourcesXPath.selectSingleNode(rootElement);
        if (elResources == null) {
            return false;
        }
        XPath itemsXPath = rootElement.createXPath("//ns:item");
        itemsXPath.setNamespaceURIs(nsuris);
        List items = itemsXPath.selectNodes(rootElement);
        if (items.size() == 0) {
            // no <item> element.
            return false;
        }
        // check for scorm 2004 simple sequencing stuff which we do not yet support
        if (seqencingUri != null) {
            XPath seqencingXPath = rootElement.createXPath("//ns:imsss");
            List sequences = seqencingXPath.selectNodes(rootElement);
            if (sequences.size() > 0) {
                // seqencing elements found -> scorm 2004
                return false;
            }
        }
        Set<String> set = new HashSet<String>();
        for (Iterator iter = items.iterator(); iter.hasNext(); ) {
            Element item = (Element) iter.next();
            String identifier = item.attributeValue("identifier");
            // check if identifiers are unique, reject if not so
            if (!set.add(identifier)) {
                // TODO:create special error message for non unique ids
                return false;
            }
        }
        for (Iterator iter = items.iterator(); iter.hasNext(); ) {
            Element item = (Element) iter.next();
            String identifierref = item.attributeValue("identifierref");
            if (identifierref == null)
                continue;
            XPath resourceXPath = rootElement.createXPath("//ns:resource[@identifier='" + identifierref + "']");
            resourceXPath.setNamespaceURIs(nsuris);
            Element elResource = (Element) resourceXPath.selectSingleNode(elResources);
            if (elResource == null) {
                return false;
            }
            // check for scorm attribute
            Attribute scormAttr = elResource.attribute("scormtype");
            // some packages have attribute written like "scormType"
            Attribute scormAttrUpper = elResource.attribute("scormType");
            if (scormAttr == null && scormAttrUpper == null) {
                return false;
            }
            String attr = "";
            if (scormAttr != null)
                attr = scormAttr.getStringValue();
            if (scormAttrUpper != null)
                attr = scormAttrUpper.getStringValue();
            if (attr == null) {
                return false;
            }
            if (elResource.attributeValue("href") != null && (attr.equalsIgnoreCase("sco") || attr.equalsIgnoreCase("asset"))) {
                // success.
                return true;
            }
        }
        return false;
    } catch (Exception e) {
        log.warn("Not a valid SCORM package", e);
        return false;
    }
}

Example 14 with XPath

use of org.dom4j.XPath in project OpenOLAT by OpenOLAT.

the class CPManifestTreeModel method buildNode.

private GenericTreeNode buildNode(Element item) {
    GenericTreeNode gtn = new GenericTreeNode();
    // fxdiff VCRP-13: cp navigation
    treeNodes.add(gtn);
    // extract title
    String title = item.elementText("title");
    if (title == null)
        title = item.attributeValue("identifier");
    String identifier = item.attributeValue("identifier");
    gtn.setAltText(title);
    gtn.setTitle(title);
    if (item.getName().equals("organization")) {
        // Add first level item for organization
        gtn.setIconCssClass("o_cp_org");
        gtn.setAccessible(false);
        // Special case check: CP with only one page: hide the page and show it directly under the organization element
        @SuppressWarnings("unchecked") List<Element> chds = item.elements("item");
        if (chds.size() == 1) {
            // check 1: only one child
            Element childitem = chds.get(0);
            @SuppressWarnings("unchecked") List<Element> grandChds = childitem.elements("item");
            if (grandChds.size() == 0) {
                // check 2: no grand children
                String identifierref = childitem.attributeValue("identifierref");
                String href = resources.get(identifierref);
                if (href != null) {
                    // check 3: a resource is attached to the child
                    // = success, we have a CP with only one page. Use this page and exit
                    XPath meta = rootElement.createXPath("//ns:resource[@identifier='" + identifierref + "']");
                    meta.setNamespaceURIs(nsuris);
                    gtn.setAccessible(true);
                    gtn.setUserObject(href);
                    if (hrefToTreeNode.containsKey(href)) {
                        log.debug("Duplicate href::" + href + " for identifierref::" + identifierref + " and identifier::" + identifier + ", use first one");
                    } else {
                        hrefToTreeNode.put(href, gtn);
                    }
                    return gtn;
                }
            }
        }
    } else if (item.getName().equals("item")) {
        gtn.setIconCssClass("o_cp_item");
        // set resolved file path directly
        String identifierref = item.attributeValue("identifierref");
        if (identifierref != null) {
            gtn.setIdent("cp" + Encoder.md5hash(identPrefix + identifierref));
        }
        XPath meta = rootElement.createXPath("//ns:resource[@identifier='" + identifierref + "']");
        meta.setNamespaceURIs(nsuris);
        String href = resources.get(identifierref);
        if (href != null) {
            gtn.setUserObject(href);
            // allow lookup of a treenode given a href so we can quickly adjust the menu if the user clicks on hyperlinks within the text
            if (hrefToTreeNode.containsKey(href)) {
                log.debug("Duplicate href::" + href + " for identifierref::" + identifierref + " and identifier::" + identifier + ", use first one");
            } else {
                hrefToTreeNode.put(href, gtn);
            }
        } else {
            gtn.setAccessible(false);
        }
    }
    @SuppressWarnings("unchecked") List<Element> chds = item.elements("item");
    int childcnt = chds.size();
    for (int i = 0; i < childcnt; i++) {
        Element childitem = chds.get(i);
        GenericTreeNode gtnchild = buildNode(childitem);
        gtn.addChild(gtnchild);
        // set the first accessible child in the hierarchy as delegate when the node itself is not accessible
        if (gtn.isAccessible() == false) {
            GenericTreeNode nextHierarchyChild = gtnchild;
            while (gtn.getDelegate() == null && nextHierarchyChild != null) {
                if (nextHierarchyChild.isAccessible()) {
                    gtn.setDelegate(nextHierarchyChild);
                } else {
                    if (nextHierarchyChild.getChildCount() > 0) {
                        nextHierarchyChild = (GenericTreeNode) nextHierarchyChild.getChildAt(0);
                    } else {
                        nextHierarchyChild = null;
                    }
                }
            }
            if (!gtn.isAccessible()) {
                log.debug("No accessible child found that could be used as delegate for identifier::" + identifier);
            }
        }
    }
    return gtn;
}

Example 15 with XPath

use of org.dom4j.XPath in project archiva by apache.

the class XMLReader method getElement.

public Element getElement(String xpathExpr) throws XMLException {
    XPath xpath = createXPath(xpathExpr);
    Object evaluated = xpath.selectSingleNode(document);
    if (evaluated == null) {
        return null;
    }
    if (evaluated instanceof Element) {
        return (Element) evaluated;
    } else {
        // Unknown evaluated type.
        throw new XMLException(".getElement( Expr: " + xpathExpr + " ) resulted in non-Element type -> (" + evaluated.getClass().getName() + ") " + evaluated);
    }
}