Package org.apache.lenya.xml

Examples of org.apache.lenya.xml.NamespaceHelper

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     * @throws DocumentException when something went wrong.
     */
    protected void load() throws DocumentException {
        if (!isLoaded) {
            log.debug("Loading: ", new DocumentException());
            NamespaceHelper helper;
            try {
                helper = getNamespaceHelper();

                Element collectionElement = helper.getDocument().getDocumentElement();
                Element[] documentElements =
                    helper.getChildren(collectionElement, ELEMENT_DOCUMENT);

                for (int i = 0; i < documentElements.length; i++) {
                    Element documentElement = documentElements[i];
                    Document document = loadDocument(documentElement);
                    documentsList.add(document);
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     * @throws DocumentException when something went wrong.
     */
    public void save() throws DocumentException {
        try {
           
            NamespaceHelper helper = getNamespaceHelper();
            Element collectionElement = helper.getDocument().getDocumentElement();
            if (collectionElement.getAttributeNS(null, ATTRIBUTE_ID) == null | collectionElement.getAttribute(ATTRIBUTE_ID).equals("")) {
                collectionElement.setAttributeNS(null, ATTRIBUTE_ID, this.getId());
            }                  
            Element[] existingDocumentElements = helper.getChildren(collectionElement, ELEMENT_DOCUMENT);
            for (int i = 0; i < existingDocumentElements.length; i++) {
                collectionElement.removeChild(existingDocumentElements[i]);
            }
           
            collectionElement.normalize();
           
            NodeList emptyTextNodes = XPathAPI.selectNodeList(collectionElement, "text()");
            for (int i = 0; i < emptyTextNodes.getLength(); i++) {
                Node node = emptyTextNodes.item(i);
                collectionElement.removeChild(node);
            }

            Document[] documents = getDocuments();
            for (int i = 0; i < documents.length; i++) {
                Element documentElement = createDocumentElement(documents[i], helper);
                collectionElement.appendChild(documentElement);
            }
            DocumentHelper.writeDocument(helper.getDocument(), getFile());
           
        } catch (DocumentException e) {
            throw e;
        } catch (Exception e) {
            throw new DocumentException(e);
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     * @throws IOException when something went wrong.
     */
    protected NamespaceHelper getNamespaceHelper()
        throws DocumentException, ParserConfigurationException, SAXException, IOException {

        NamespaceHelper helper;

        if (exists()) {
            File file = getFile();
            org.w3c.dom.Document document = DocumentHelper.readDocument(file);
            helper = new NamespaceHelper(Collection.NAMESPACE, Collection.DEFAULT_PREFIX, document);
        } else {
            helper =
                new NamespaceHelper(
                    Collection.NAMESPACE,
                    Collection.DEFAULT_PREFIX,
                    ELEMENT_COLLECTION);
        }
        return helper;
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            throw new IllegalArgumentException();
        }

        String triggerType = element.getAttribute(TRIGGER_TYPE);

        NamespaceHelper helper = SchedulerStore.getNamespaceHelper();

        // SimpleTrigger
        if (triggerType.equals(ONCE)) {
            Element[] parameterElements = helper.getChildren(element, "parameter");
            GregorianCalendar date = new GregorianCalendar();

            for (int i = 0; i < parameterElements.length; i++) {
                String name = parameterElements[i].getAttribute("name");
                String value = parameterElements[i].getAttribute("value");

                if (name.equals(YEAR)) {
                    date.set(Calendar.YEAR, Integer.parseInt(value));
                }

                if (name.equals(MONTH)) {
                    date.set(Calendar.MONTH, Integer.parseInt(value) - 1);
                }

                if (name.equals(DAY)) {
                    date.set(Calendar.DAY_OF_MONTH, Integer.parseInt(value));
                }

                if (name.equals(HOUR)) {
                    date.set(Calendar.HOUR_OF_DAY, Integer.parseInt(value));
                }

                if (name.equals(MINUTE)) {
                    date.set(Calendar.MINUTE, Integer.parseInt(value));
                }

                if (name.equals(HOUR)) {
                    date.set(Calendar.HOUR_OF_DAY, Integer.parseInt(value));
                }
            }

            return createSimpleTrigger(jobName, jobGroup, date.getTime());
        }

        // CronTrigger
        if (triggerType.equals(REPEATED)) {
            Element[] parameterElements = helper.getChildren(element, "parameter");
            String name = parameterElements[0].getAttribute("name");
            String value = parameterElements[0].getAttribute("value");
            String cron_expression;

            if (name.equals(CRON_EXPRESSION)) {
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     * @param parent The parent of the task wrapper element.
     * @param helper The namespace helper of the document.
     */
    public void restore(NamespaceHelper helper, Element parent) {
        org.w3c.dom.Document document = helper.getDocument();
        NamespaceHelper taskHelper =
            new NamespaceHelper(Task.NAMESPACE, Task.DEFAULT_PREFIX, document);
        Element taskElement = taskHelper.getFirstChild(parent, ELEMENT_TASK);
        Element[] parameterElements = taskHelper.getChildren(taskElement, ELEMENT_PARAMETER);
        for (int i = 0; i < parameterElements.length; i++) {
            String key = parameterElements[i].getAttribute(ATTRIBUTE_NAME);
            String value = parameterElements[i].getAttribute(ATTRIBUTE_VALUE);
            getParameterObject().put(key, value);
        }
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     * @return An XML document.
     * @exception SchedulerException if an error occurs
     */
    public Document getSnapshot(Publication publication, JobWrapper[] jobs)
        throws SchedulerException {
        NamespaceHelper helper = SchedulerStore.getNamespaceHelper();
        Document document = helper.getDocument();
        Element root = document.getDocumentElement();

        log.debug("Creating job snapshot for publication [" + publication.getId() + "]");
        root.appendChild(createSnapshot(helper, publication, jobs));

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     * Returns a scheduler namespace helper for a document.
     * @param document The XML document.
     * @return a namespace helper.
     */
    public static NamespaceHelper getNamespaceHelper(Document document) {
        return new NamespaceHelper(NAMESPACE, "sch", document);
    }
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     * a &lt;sch:scheduler&gt; element.
     * @return a namespace helper.
     */
    public static NamespaceHelper getNamespaceHelper() {
        try {
            return new NamespaceHelper(NAMESPACE, "sch", "scheduler");
        } catch (Exception e) {
            log.error("Could not create namespace helper: ", e);

            return null;
        }
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            try {
                document = DocumentHelper.readDocument(jobsFile);
            } catch (Exception e) {
                throw new SchedulerException(e);
            }
            NamespaceHelper helper = SchedulerStore.getNamespaceHelper(document);

            for (int i = 0; i < jobElements.length; i++) {
                wrappers.add(restoreJob(helper, jobElements[i], publication));
            }
        }
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        try {
            File jobsFile = getJobsFile(publication);
            if (jobsFile.exists()) {
                Document document = DocumentHelper.readDocument(jobsFile);
                Element schedulerElement = document.getDocumentElement();
                NamespaceHelper helper = SchedulerStore.getNamespaceHelper(document);

                Element jobGroupElement =
                    helper.getFirstChild(schedulerElement, SchedulerStore.ELEMENT_JOB_GROUP);
                if (jobGroupElement == null) {
                    throw new SchedulerException("No <job-group> element found!");
                }

                String jobGroupAttribute = jobGroupElement.getAttribute("name");

                if (!jobGroupAttribute.equals(publication.getId())) {
                    throw new SchedulerException(
                        "The jobs.xml file contains a wrong job group: ["
                            + jobGroupAttribute
                            + "]");
                } else {
                    jobElements = helper.getChildren(jobGroupElement, SchedulerStore.ELEMENT_JOB);

                }
            } else {
                throw new SchedulerException(
                    "The jobs file [" + jobsFile.getAbsolutePath() + "] does not exist!");
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