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

Example 21 with XPath

use of org.dom4j.XPath in project pentaho-kettle by pentaho.

the class GetXMLData method applyXPath.

@SuppressWarnings("unchecked")
private boolean applyXPath() {
    try {
        XPath xpath = data.document.createXPath(data.PathValue);
        if (meta.isNamespaceAware()) {
            xpath = data.document.createXPath(addNSPrefix(data.PathValue, data.PathValue));
            xpath.setNamespaceURIs(data.NAMESPACE);
        }
        // get nodes list
        data.an = xpath.selectNodes(data.document);
        data.nodesize = data.an.size();
        data.nodenr = 0;
    } catch (Exception e) {
        logError(BaseMessages.getString(PKG, "GetXMLData.Log.ErrorApplyXPath", e.getMessage()));
        return false;
    }
    return true;
}

Example 22 with XPath

use of org.dom4j.XPath in project openolat by klemens.

the class ImsCPFileResource method validateImsManifest.

private 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;
        // get all organization elements. need to set namespace
        Element rootElement = doc.getRootElement();
        String nsuri = rootElement.getNamespace().getURI();
        Map<String, String> nsuris = new HashMap<>(1);
        nsuris.put("ns", nsuri);
        // Check for organiztaion element. Must provide at least one... title gets ectracted 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>, which will serve as an entry point.
        // This is mandatory, as we need an entry point as the user has the option of setting
        // CPDisplayController to not display a menu at all, in which case the first <item>/<resource>
        // element pair gets displayed.
        XPath resourcesXPath = rootElement.createXPath("//ns:resources");
        resourcesXPath.setNamespaceURIs(nsuris);
        Element elResources = (Element) resourcesXPath.selectSingleNode(rootElement);
        if (elResources == null) {
            // no <resources> element.
            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;
        }
        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;
            }
            if (elResource.attribute("scormtype") != null) {
                return false;
            }
            if (elResource.attribute("scormType") != null) {
                return false;
            }
            if (elResource.attribute("SCORMTYPE") != null) {
                return false;
            }
            if (elResource.attributeValue("href") != null) {
                // success.
                return true;
            }
        }
    } catch (Exception e) {
        log.warn("", e);
    }
    return false;
}

Example 23 with XPath

use of org.dom4j.XPath in project openolat by klemens.

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 24 with XPath

use of org.dom4j.XPath in project openolat by klemens.

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 25 with XPath

use of org.dom4j.XPath in project openolat by klemens.

the class ResultsBuilder method getResDoc.

/**
 * Method getResDoc.
 *
 * @param ai The assessment instance
 * @param locale The users locale
 * @param identity
 * @return Document The XML document
 */
public Document getResDoc(AssessmentInstance ai, Locale locale, Identity identity) {
    AssessmentContext ac = ai.getAssessmentContext();
    DocumentFactory df = DocumentFactory.getInstance();
    Document res_doc = df.createDocument();
    Element root = df.createElement("qti_result_report");
    res_doc.setRootElement(root);
    Element result = root.addElement("result");
    Element extension_result = result.addElement("extension_result");
    String baseUrl = ai.getResolver().getStaticsBaseURI() + "/";
    // extension_result.
    for (int i = 0; i < ac.getSectionContextCount(); i++) {
        SectionContext sectionCtx = ac.getSectionContext(i);
        for (int j = 0; j < sectionCtx.getItemContextCount(); j++) {
            // OO-148
            // on some occasions this did throw an IllegalAddException
            // because el_item had already a parent.
            // make a clone for adding to extension_result
            Element el_item = (Element) sectionCtx.getItemContext(j).getEl_item().clone();
            recurseMattextForMediaURLFiltering(baseUrl, el_item);
            extension_result.add(el_item);
        }
    }
    // add ims cp id for any media references
    addStaticsPath(extension_result, ai);
    // add assessment_result
    // Add User information
    Element context = result.addElement("context");
    User user = identity.getUser();
    String name = user.getProperty(UserConstants.FIRSTNAME, locale) + " " + user.getProperty(UserConstants.LASTNAME, locale);
    String instId = user.getProperty(UserConstants.INSTITUTIONALUSERIDENTIFIER, locale);
    String instName = user.getProperty(UserConstants.INSTITUTIONALNAME, locale);
    if (instId == null)
        instId = "N/A";
    context.addElement("name").addText(name);
    String institution;
    if (instName == null) {
        institution = "N/A";
    } else {
        institution = instName;
    }
    // Add institutional identifier (e.g. Matrikelnummer)
    Element generic_identifier = context.addElement("generic_identifier");
    generic_identifier.addElement("type_label").addText(institution);
    generic_identifier.addElement("identifier_string").addText(instId);
    // Add start and stop date formatted as datetime
    Element beginDate = context.addElement("date");
    beginDate.addElement("type_label").addText("Start");
    beginDate.addElement("datetime").addText(Formatter.formatDatetime(new Date(ac.getTimeOfStart())));
    Element stopDate = context.addElement("date");
    stopDate.addElement("type_label").addText("Stop");
    stopDate.addElement("datetime").addText(Formatter.formatDatetime(new Date(ac.getTimeOfStop())));
    Element ares = result.addElement("assessment_result");
    ares.addAttribute("ident_ref", ac.getIdent());
    if (ac.getTitle() != null) {
        ares.addAttribute("asi_title", ac.getTitle());
    }
    // process assessment score
    Element a_score = ares.addElement("outcomes").addElement("score");
    a_score.addAttribute("varname", "SCORE");
    String strVal = StringHelper.formatFloat(ac.getScore(), 2);
    a_score.addElement("score_value").addText(strVal);
    strVal = ac.getMaxScore() == -1.0f ? "N/A" : StringHelper.formatFloat(ac.getMaxScore(), 2);
    a_score.addElement("score_max").addText(strVal);
    strVal = ac.getCutvalue() == -1.0f ? "N/A" : StringHelper.formatFloat(ac.getCutvalue(), 2);
    a_score.addElement("score_cut").addText(strVal);
    addElementText(ares, "duration", QTIHelper.getISODuration(ac.getDuration()));
    addElementText(ares, "num_sections", "" + ac.getSectionContextCount());
    addElementText(ares, "num_sections_presented", "0");
    addElementText(ares, "num_items", "" + ac.getItemContextCount());
    addElementText(ares, "num_items_presented", "" + ac.getItemsPresentedCount());
    addElementText(ares, "num_items_attempted", "" + ac.getItemsAttemptedCount());
    // add section_result
    int secnt = ac.getSectionContextCount();
    for (int i = 0; i < secnt; i++) {
        SectionContext secc = ac.getSectionContext(i);
        Element secres = ares.addElement("section_result");
        secres.addAttribute("ident_ref", secc.getIdent());
        if (secc.getTitle() != null) {
            secres.addAttribute("asi_title", secc.getTitle());
        }
        addElementText(secres, "duration", QTIHelper.getISODuration(secc.getDuration()));
        addElementText(secres, "num_items", "" + secc.getItemContextCount());
        addElementText(secres, "num_items_presented", "" + secc.getItemsPresentedCount());
        addElementText(secres, "num_items_attempted", "" + secc.getItemsAttemptedCount());
        // process section score
        Element sec_score = secres.addElement("outcomes").addElement("score");
        sec_score.addAttribute("varname", "SCORE");
        strVal = secc.getScore() == -1.0f ? "N/A" : "" + StringHelper.formatFloat(secc.getScore(), 2);
        sec_score.addElement("score_value").addText(strVal);
        strVal = secc.getMaxScore() == -1.0f ? "N/A" : "" + StringHelper.formatFloat(secc.getMaxScore(), 2);
        sec_score.addElement("score_max").addText(strVal);
        strVal = secc.getCutValue() == -1 ? "N/A" : "" + secc.getCutValue();
        sec_score.addElement("score_cut").addText(strVal);
        // iterate over all items in this section context
        List<ItemContext> itemsc = secc.getSectionItemContexts();
        for (Iterator<ItemContext> it_it = itemsc.iterator(); it_it.hasNext(); ) {
            ItemContext itemc = it_it.next();
            Element itres = secres.addElement("item_result");
            itres.addAttribute("ident_ref", itemc.getIdent());
            itres.addAttribute("asi_title", itemc.getEl_item().attributeValue("title"));
            Element it_duration = itres.addElement("duration");
            it_duration.addText(QTIHelper.getISODuration(itemc.getTimeSpent()));
            // process item score
            DecimalVariable scoreVar = (DecimalVariable) (itemc.getVariables().getSCOREVariable());
            Element it_score = itres.addElement("outcomes").addElement("score");
            it_score.addAttribute("varname", "SCORE");
            it_score.addElement("score_value").addText(StringHelper.formatFloat(scoreVar.getTruncatedValue(), 2));
            strVal = scoreVar.hasMinValue() ? "" + scoreVar.getMinValue() : "0.0";
            it_score.addElement("score_min").addText(strVal);
            strVal = scoreVar.hasMaxValue() ? "" + scoreVar.getMaxValue() : "N/A";
            it_score.addElement("score_max").addText(strVal);
            strVal = scoreVar.hasCutValue() ? "" + scoreVar.getCutValue() : "N/A";
            it_score.addElement("score_cut").addText(strVal);
            Element el_item = itemc.getEl_item();
            Map<String, Element> res_responsehash = new HashMap<>(3);
            // iterate over all responses of this item
            List resps = el_item.selectNodes(".//response_lid|.//response_xy|.//response_str|.//response_num|.//response_grp");
            for (Iterator it_resp = resps.iterator(); it_resp.hasNext(); ) {
                Element resp = (Element) it_resp.next();
                String ident = resp.attributeValue("ident");
                String rcardinality = resp.attributeValue("rcardinality");
                String rtiming = resp.attributeValue("rtiming");
                // add new response
                Element res_response = itres.addElement("response");
                res_response.addAttribute("ident_ref", ident);
                // enable lookup of
                res_responsehash.put(ident, res_response);
                // @identref of <response>
                // (needed with <varequal>
                // elements
                // add new response_form
                // <response_lid ident="MR01" rcardinality="Multiple" rtiming="No">
                Element res_responseform = res_response.addElement("response_form");
                res_responseform.addAttribute("cardinality", rcardinality);
                res_responseform.addAttribute("timing", rtiming);
                String respName = resp.getName();
                String type = respName.substring(respName.indexOf("_") + 1);
                res_responseform.addAttribute("response_type", type);
                // add user answer
                ItemInput itemInp = itemc.getItemInput();
                Translator trans = Util.createPackageTranslator(QTIModule.class, locale);
                if (itemInp == null) {
                    // user did not answer this question at all
                    res_response.addElement("response_value").addText(trans.translate("ResBuilder.NoAnswer"));
                } else {
                    List<String> userAnswer = itemInp.getAsList(ident);
                    if (userAnswer == null) {
                        // user did not answer this question at
                        // all
                        res_response.addElement("response_value").addText(trans.translate("ResBuilder.NoAnswer"));
                    } else {
                        // simply click send)
                        for (Iterator<String> it_ans = userAnswer.iterator(); it_ans.hasNext(); ) {
                            res_response.addElement("response_value").addText(it_ans.next());
                        }
                    }
                }
            }
            /*
				 * The simple element correct_response can only list correct elements,
				 * that is, no "or" or "and" elements may be in the conditionvar.
				 * Pragmatic solution: if condition has ors or ands, then put whole
				 * conditionvar into <extension_response> (proprietary), and for easier
				 * cases (just "varequal" "not" elements) use correct_response.
				 */
            // keys: respIdents, values: HashSet
            Map<String, Set<String>> corr_answers = new HashMap<>();
            // of correct answers for this
            // respIdent
            List respconds = el_item.selectNodes(".//respcondition");
            for (Iterator it_respc = respconds.iterator(); it_respc.hasNext(); ) {
                Element el_respc = (Element) it_respc.next();
                // check for add/set in setvar elements (check for single instance
                // only -> spec allows for multiple instances)
                Element el_setvar = (Element) el_respc.selectSingleNode(".//setvar");
                if (el_setvar == null)
                    continue;
                if (el_setvar.attributeValue("action").equals("Add") || el_setvar.attributeValue("action").equals("Set")) {
                    // This resrocessing gives points -> assume correct answer
                    float numPoints = 0;
                    try {
                        numPoints = Float.parseFloat(el_setvar.getTextTrim());
                    } catch (NumberFormatException nfe) {
                    // 
                    }
                    if (numPoints <= 0)
                        continue;
                    Element conditionvar = (Element) el_respc.selectSingleNode(".//conditionvar");
                    // there is an evaluation defined (a "resprocessing" element exists)
                    // if (xpath(count(.//varequal) + count(.//not) = count(.//*)) is
                    // true, then there are only "not" and "varequal" elements
                    XPath xCanHandle = DocumentHelper.createXPath("count(.//varequal) + count(.//not) = count(.//*)");
                    boolean canHandle = xCanHandle.matches(conditionvar);
                    if (!canHandle) {
                        // maybe we have <condvar> <and> <...>, try again
                        Element el_and = (Element) conditionvar.selectSingleNode("and");
                        if (el_and != null) {
                            canHandle = xCanHandle.matches(el_and);
                            if (canHandle) {
                                // simultate the el_and to be the conditionvar
                                conditionvar = el_and;
                            }
                        } else {
                            // and finally, maybe we have an <or> element ..
                            Element el_or = (Element) conditionvar.selectSingleNode("or");
                            if (el_or != null) {
                                canHandle = xCanHandle.matches(el_or);
                                if (canHandle) {
                                    // simultate the el_and to be the conditionvar
                                    conditionvar = el_or;
                                }
                            }
                        }
                    }
                    if (!canHandle) {
                        // qti res 1.2.1 can't handle it
                        Element condcopy = conditionvar.createCopy();
                        itres.addElement("extension_item_result").add(condcopy);
                    } else {
                        /*
							 * easy case: get all varequal directly under the conditionvar
							 * element and assume the "not" elements do not contain "not"
							 * elements again... <!ELEMENT response (qti_comment? ,
							 * response_form? , num_attempts? , response_value* ,
							 * extension_response?)> <!ELEMENT response_form
							 * (correct_response* , extension_responseform?)> <!ELEMENT
							 * correct_response (#PCDATA)>
							 */
                        List vareqs = conditionvar.selectNodes("./varequal");
                        for (Iterator it_vareq = vareqs.iterator(); it_vareq.hasNext(); ) {
                            /*
								 * get the identifier of the response, so that we can attach the
								 * <correct_response> to the right <response> element quote: ims
								 * qti asi xml binding :3.6.23.1 <varequal> Element: respident
								 * (required). The identifier of the corresponding
								 * <response_lid>, <response_xy>, etc. element (this was
								 * assigned using its ident attribute).
								 */
                            Element vareq = (Element) it_vareq.next();
                            String respIdent = vareq.attributeValue("respident");
                            Set<String> respIdent_corr_answers = corr_answers.get(respIdent);
                            if (respIdent_corr_answers == null)
                                respIdent_corr_answers = new HashSet<String>(3);
                            respIdent_corr_answers.add(vareq.getText());
                            corr_answers.put(respIdent, respIdent_corr_answers);
                        }
                    // for varequal
                    }
                // else varequal
                }
            // add/set setvar
            }
            // for resprocessing
            Set<String> resp_ids = corr_answers.keySet();
            for (Iterator<String> idents = resp_ids.iterator(); idents.hasNext(); ) {
                String respIdent = idents.next();
                Set<String> respIdent_corr_answers = corr_answers.get(respIdent);
                Element res_response = res_responsehash.get(respIdent);
                Element res_respform = res_response.element("response_form");
                for (Iterator<String> iter = respIdent_corr_answers.iterator(); iter.hasNext(); ) {
                    String answer = iter.next();
                    res_respform.addElement("correct_response").addText(answer);
                }
            }
        }
    // for response_xy
    }
    return res_doc;
}