Example usage for org.jdom2 Document getRootElement

Introduction

In this page you can find the example usage for org.jdom2 Document getRootElement.

Prototype

public Element getRootElement() 

Source Link

Document

This will return the root Element for this Document

Usage

From source file:ca.nrc.cadc.uws.JobReader.java

License:Open Source License

private List<Parameter> parseParametersList(Document doc) {
    List<Parameter> rtn = null;
    Element root = doc.getRootElement();
    Element elementParameters = root.getChild(JobAttribute.PARAMETERS.getAttributeName(), UWS.NS);
    if (elementParameters != null) {
        rtn = new ArrayList<Parameter>();

        Parameter par = null;/*  www.  j  av  a 2  s  .  c om*/
        List<?> listElement = elementParameters.getChildren(JobAttribute.PARAMETER.getAttributeName(), UWS.NS);
        for (Object obj : listElement) {
            Element e = (Element) obj;
            String id = e.getAttributeValue("id");
            String value = e.getText();
            par = new Parameter(id, value);
            rtn.add(par);
        }
    }
    return rtn;
}

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From source file:ca.nrc.cadc.uws.JobReader.java

License:Open Source License

private List<Result> parseResultsList(Document doc) {
    List<Result> rtn = null;
    Element root = doc.getRootElement();
    Element e = root.getChild(JobAttribute.RESULTS.getAttributeName(), UWS.NS);
    if (e != null) {
        rtn = new ArrayList<Result>();

        Result rs = null;/*  ww  w  .  j ava  2s.c  om*/
        List<?> listE = e.getChildren(JobAttribute.RESULT.getAttributeName(), UWS.NS);
        for (Object obj : listE) {
            Element eRs = (Element) obj;
            String id = eRs.getAttributeValue("id");
            String href = eRs.getAttributeValue("href", UWS.XLINK_NS);
            try {
                rs = new Result(id, new URI(href));
                rtn.add(rs);
            } catch (URISyntaxException ex) {
                // do nothing; just do not add rs to list
                log.debug(ex.getMessage());
            }
        }
    }
    return rtn;
}

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From source file:ca.nrc.cadc.uws.JobReader.java

License:Open Source License

private ErrorSummary parseErrorSummary(Document doc) {
    ErrorSummary rtn = null;/*from   ww  w  . j  ava2s . co m*/
    Element root = doc.getRootElement();
    Element e = root.getChild(JobAttribute.ERROR_SUMMARY.getAttributeName(), UWS.NS);
    if (e != null) {
        ErrorType errorType = null;
        String strType = e.getAttributeValue("type");
        if (strType.equalsIgnoreCase(ErrorType.FATAL.toString()))
            errorType = ErrorType.FATAL;
        else if (strType.equalsIgnoreCase(ErrorType.TRANSIENT.toString()))
            errorType = ErrorType.TRANSIENT;

        boolean hasDetail = false;
        String strDetail = e.getAttributeValue("hasDetail");
        if (strDetail.equalsIgnoreCase("true"))
            hasDetail = true;

        String summaryMessage = e.getChildText(JobAttribute.ERROR_SUMMARY_MESSAGE.getAttributeName(), UWS.NS);
        rtn = new ErrorSummary(summaryMessage, errorType, hasDetail);
    }
    return rtn;
}

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From source file:ca.nrc.cadc.uws.JobReader.java

License:Open Source License

private JobInfo parseJobInfo(Document doc) {
    JobInfo rtn = null;/*from   w  w  w. ja v  a2 s.  c o  m*/
    Element root = doc.getRootElement();
    Element e = root.getChild(JobAttribute.JOB_INFO.getAttributeName(), UWS.NS);
    if (e != null) {
        log.debug("found jobInfo element");
        String content = e.getText();
        List children = e.getChildren();
        if (content != null)
            content = content.trim();
        if (content.length() > 0) // it was text content
        {
            rtn = new JobInfo(content, null, null);
        } else if (children != null) {
            if (children.size() == 1) {
                try {
                    Element ce = (Element) children.get(0);
                    Document jiDoc = new Document((Element) ce.detach());
                    XMLOutputter outputter = new XMLOutputter();
                    StringWriter sw = new StringWriter();
                    outputter.output(jiDoc, sw);
                    sw.close();
                    rtn = new JobInfo(sw.toString(), null, null);

                } catch (IOException ex) {
                    throw new RuntimeException("BUG while writing element to string", ex);
                }
            }
        }
    }
    log.debug("parseJobInfo: " + rtn);
    return rtn;
}

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From source file:ca.nrc.cadc.uws.JobWriter.java

License:Open Source License

/**
 * Get an Element representing the Job jobInfo.
 *
 * @return The Job jobInfo Element./* w ww  . j  a  v a2 s  . c  om*/
 */
public Element getJobInfo(Job job) {
    Element element = null;
    JobInfo jobInfo = job.getJobInfo();
    if (jobInfo != null) {

        if (jobInfo.getContent() != null && jobInfo.getValid() != null && jobInfo.getValid()) {
            element = new Element(JobAttribute.JOB_INFO.getAttributeName(), UWS.NS);
            try {
                // The JobInfo content can't be validated since the schema(s) aren't known
                // but we still need to parse and extract the root/document element
                Document doc = XmlUtil.buildDocument(jobInfo.getContent());
                element.addContent(doc.getRootElement().detach());
            } catch (Exception e) {
                element = null;
            }
        }
    }
    return element;
}

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From source file:ca.nrc.cadc.uws.sample.HelloWorld.java

License:Open Source License

public void run() {
    log.debug("run: " + job.getID());
    try {//from  w w w.j a  va 2 s .c o  m
        ExecutionPhase ep = jobUpdater.setPhase(job.getID(), ExecutionPhase.QUEUED, ExecutionPhase.EXECUTING,
                new Date());
        if (!ExecutionPhase.EXECUTING.equals(ep)) {
            ep = jobUpdater.getPhase(job.getID());
            log.debug(job.getID() + ": QUEUED -> EXECUTING [FAILED] -- DONE");
            return;
        }
        log.info(job.getID() + ": QUEUED -> EXECUTING [OK]");

        String passValue = null;
        String streamValue = null;
        String runforValue = null;

        boolean pass = false;
        boolean stream = false;
        long runfor = 1;

        // JobInfo input (XML)
        if (job.getJobInfo() != null) {
            // TODO: content type/error handling here
            JobInfo ji = job.getJobInfo();
            if (ji.getValid() != null && ji.getValid()) {
                Document document = XmlUtil.buildDocument(ji.getContent());
                Element root = document.getRootElement();
                passValue = root.getChildText("pass");
                streamValue = root.getChildText("stream");
                runforValue = root.getChildText("runfor");
            }
        } else // parameter list input
        {
            passValue = ParameterUtil.findParameterValue(PASS, job.getParameterList());
            streamValue = ParameterUtil.findParameterValue(STREAM, job.getParameterList());
            runforValue = ParameterUtil.findParameterValue(RUNFOR, job.getParameterList());
        }

        if (passValue != null)
            try {
                pass = Boolean.parseBoolean(passValue);
            } catch (Exception ignore) {
                log.debug("invalid boolean value: " + PASS + "=" + passValue);
            }
        if (streamValue != null)
            try {
                stream = Boolean.parseBoolean(streamValue);
            } catch (Exception ignore) {
                log.debug("invalid boolean value: " + STREAM + "=" + streamValue);
            }
        if (runforValue != null)
            try {
                runfor = Long.parseLong(runforValue);
            } catch (Exception ignore) {
                log.debug("invalid long value: " + RUNFOR + "=" + runforValue);
            }

        // sanity check
        runfor *= 1000L; // convert to milliseconds
        if (runfor < MIN_RUNFOR)
            runfor = MIN_RUNFOR;
        else if (runfor > MAX_RUNFOR)
            runfor = MAX_RUNFOR;

        log.debug("pass: " + pass + ", stream: " + stream + ", duration: " + runfor);
        Thread.sleep(runfor);

        ExecutionPhase expected = null;
        ep = null;
        if (pass) {
            expected = ExecutionPhase.COMPLETED;
            List<Result> results = generateResults();
            if (syncOutput != null) {
                if (stream) {
                    syncOutput.setHeader("Content-Type", "text/plain");
                    PrintWriter w = new PrintWriter(syncOutput.getOutputStream());
                    w.println(RESULT);
                    w.close();
                    ep = jobUpdater.setPhase(job.getID(), ExecutionPhase.EXECUTING, ExecutionPhase.COMPLETED,
                            new Date());
                } else {
                    syncOutput.setResponseCode(303);
                    syncOutput.setHeader("Location", results.get(0).getURI().toASCIIString());
                    ep = jobUpdater.setPhase(job.getID(), ExecutionPhase.EXECUTING, ExecutionPhase.COMPLETED,
                            new Date());
                }
            } else // async
            {
                ep = jobUpdater.setPhase(job.getID(), ExecutionPhase.EXECUTING, ExecutionPhase.COMPLETED,
                        results, new Date());
            }
        } else {
            expected = ExecutionPhase.ERROR;
            ErrorSummary error = generateError();
            if (syncOutput != null) {
                if (stream) {
                    syncOutput.setHeader("Content-Type", "text/plain");
                    PrintWriter w = new PrintWriter(syncOutput.getOutputStream());
                    w.println(ERROR);
                    w.close();
                    ep = jobUpdater.setPhase(job.getID(), ExecutionPhase.EXECUTING, ExecutionPhase.COMPLETED,
                            new Date());
                } else {
                    syncOutput.setResponseCode(303);
                    syncOutput.setHeader("Location", error.getDocumentURL().toExternalForm());
                    ep = jobUpdater.setPhase(job.getID(), ExecutionPhase.EXECUTING, ExecutionPhase.ERROR, error,
                            new Date());
                }
            } else // async
            {
                ep = jobUpdater.setPhase(job.getID(), ExecutionPhase.EXECUTING, ExecutionPhase.ERROR, error,
                        new Date());
            }
        }
        if (expected.equals(ep))
            log.info(job.getID() + ": EXECUTING -> " + expected.name() + " [OK]");
        else
            log.info(job.getID() + ": EXECUTING -> " + expected.name() + " [FAILED]");
    }
    //catch(JobNotFoundException ex) { } // either a bug or someone deleted the job after executing it
    //catch(JobPersistenceException ex) { } // back end persistence is failing
    catch (Throwable t) {
        log.error("unexpected failure", t);
        ErrorSummary error = new ErrorSummary(t.toString(), ErrorType.FATAL);
        if (syncOutput != null) {
            try {
                PrintWriter pw = new PrintWriter(syncOutput.getOutputStream());
                pw.println(t.getMessage());
                pw.close();
            } catch (IOException ex) {
                log.error("failed to write unexpected failure message to output", ex);
            }
        }
        try {
            jobUpdater.setPhase(job.getID(), ExecutionPhase.EXECUTING, ExecutionPhase.ERROR, error, new Date());
        } catch (Exception ex) {
            log.error("failed to set unexpected error state: " + ex);
        }
    }
}

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From source file:ca.nrc.cadc.vos.NodeReader.java

License:Open Source License

/**
 *  Construct a Node from a Reader./*ww  w  .java2  s .c  o m*/
 *
 * @param reader Reader.
 * @return Node Node.
 * @throws NodeParsingException if there is an error parsing the XML.
 */
public Node read(Reader reader) throws NodeParsingException, IOException {
    if (reader == null)
        throw new IllegalArgumentException("reader must not be null");

    // Create a JDOM Document from the XML
    Document document;
    try {
        // TODO: investigate creating a SAXBuilder once and re-using it
        // as long as we can detect concurrent access (a la java collections)
        document = XmlUtil.validateXml(reader, schemaMap);
    } catch (JDOMException jde) {
        String error = "XML failed schema validation: " + jde.getMessage();
        throw new NodeParsingException(error, jde);
    }

    // Root element and namespace of the Document
    Element root = document.getRootElement();
    Namespace namespace = root.getNamespace();
    log.debug("node namespace uri: " + namespace.getURI());
    log.debug("node namespace prefix: " + namespace.getPrefix());

    /* Node base elements */
    // uri attribute of the node element
    String uri = root.getAttributeValue("uri");
    if (uri == null) {
        String error = "uri attribute not found in root element";
        throw new NodeParsingException(error);
    }
    log.debug("node uri: " + uri);

    // Get the xsi:type attribute which defines the Node class
    String xsiType = root.getAttributeValue("type", xsiNamespace);
    if (xsiType == null) {
        String error = "xsi:type attribute not found in node element " + uri;
        throw new NodeParsingException(error);
    }

    // Split the type attribute into namespace and Node type
    String[] types = xsiType.split(":");
    String type = types[1];
    log.debug("node type: " + type);

    try {
        if (type.equals(ContainerNode.class.getSimpleName()))
            return buildContainerNode(root, namespace, uri);
        else if (type.equals(DataNode.class.getSimpleName()))
            return buildDataNode(root, namespace, uri);
        else if (type.equals(UnstructuredDataNode.class.getSimpleName()))
            return buildUnstructuredDataNode(root, namespace, uri);
        else if (type.equals(LinkNode.class.getSimpleName()))
            return buildLinkNode(root, namespace, uri);
        else if (type.equals(StructuredDataNode.class.getSimpleName()))
            return buildStructuredDataNode(root, namespace, uri);
        else
            throw new NodeParsingException("unsupported node type " + type);
    } catch (URISyntaxException e) {
        throw new NodeParsingException("invalid uri in xml: " + e.getMessage());
    }
}

---

From source file:ca.nrc.cadc.vos.TransferReader.java

License:Open Source License

private Transfer parseTransfer(Document document) throws URISyntaxException {
    Element root = document.getRootElement();

    Direction direction = parseDirection(root);
    // String serviceUrl; // not in XML yet
    VOSURI target = new VOSURI(root.getChildText("target", VOS_NS));

    // TODO: get view nodes and uri attribute
    View view = null;//from ww w  . j  ava 2s . c  om
    Parameter param = null;
    List views = root.getChildren("view", VOS_NS);
    if (views != null && views.size() > 0) {
        Element v = (Element) views.get(0);
        view = new View(new URI(v.getAttributeValue("uri")));
        List params = v.getChildren("param", VOS_NS);
        if (params != null) {
            for (Object o : params) {
                Element p = (Element) o;
                param = new Parameter(new URI(p.getAttributeValue("uri")), p.getText());
                view.getParameters().add(param);
            }
        }
    }
    List<Protocol> protocols = parseProtocols(root);
    String keepBytesStr = root.getChildText("keepBytes", VOS_NS);

    if (keepBytesStr != null) {
        boolean keepBytes = true;
        keepBytes = keepBytesStr.equalsIgnoreCase("true");
        return new Transfer(target, direction, view, protocols, keepBytes);
    }
    return new Transfer(target, direction, view, protocols);
}

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From source file:ca.nrc.cadc.vosi.avail.CheckWebService.java

License:Open Source License

void checkReturnedXml(String strXml) throws CheckException {
    Document doc;
    String xpathStr;/*from  w w w  . ja  v a  2s . c  o m*/

    try {
        StringReader reader = new StringReader(strXml);
        doc = XmlUtil.buildDocument(reader, schemaMap);

        //get namespace and/or prefix from Document, then create xpath based on the prefix
        String nsp = doc.getRootElement().getNamespacePrefix(); //Namespace Prefix
        if (nsp != null && nsp.length() > 0)
            nsp = nsp + ":";
        else
            nsp = "";
        xpathStr = "/" + nsp + "availability/" + nsp + "available";
        XPathBuilder<Element> builder = new XPathBuilder<Element>(xpathStr, Filters.element());
        Namespace ns = Namespace.getNamespace(VOSI.NS_PREFIX, VOSI.AVAILABILITY_NS_URI);
        builder.setNamespace(ns);
        XPathExpression<Element> xpath = builder.compileWith(XPathFactory.instance());
        Element eleAvail = xpath.evaluateFirst(doc);
        log.debug(eleAvail);
        String textAvail = eleAvail.getText();

        // TODO: is this is actually valid? is the content not constrained by the schema?
        if (textAvail == null)
            throw new CheckException(wsURL + " output is invalid: no content in <available> element", null);

        if (!textAvail.equalsIgnoreCase("true")) {
            xpathStr = "/" + nsp + "availability/" + nsp + "note";
            builder = new XPathBuilder<Element>(xpathStr, Filters.element());
            builder.setNamespace(ns);
            xpath = builder.compileWith(XPathFactory.instance());
            Element eleNotes = xpath.evaluateFirst(doc);

            String textNotes = eleNotes.getText();
            throw new CheckException("service " + wsURL + " is not available, reported reason: " + textNotes,
                    null);
        }
    } catch (IOException e) {
        // probably an incorrect setup or bug in the checks
        throw new RuntimeException("failed to test " + wsURL, e);
    } catch (JDOMException e) {
        throw new CheckException(wsURL + " output is invalid", e);
    }
}

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From source file:ca.nrc.cadc.vosi.Availability.java

License:Open Source License

public AvailabilityStatus fromXmlDocument(Document doc) throws ParseException {
    Namespace vosi = Namespace.getNamespace("vosi", VOSI.AVAILABILITY_NS_URI);
    Element availability = doc.getRootElement();
    if (!availability.getName().equals("availability"))
        throw new IllegalArgumentException("missing root element 'availability'");

    Element elemAvailable = availability.getChild("available", vosi);
    if (elemAvailable == null)
        throw new IllegalArgumentException("missing element 'available'");
    boolean available = elemAvailable.getText().equalsIgnoreCase("true");

    DateFormat df = DateUtil.getDateFormat(DateUtil.IVOA_DATE_FORMAT, DateUtil.UTC);

    Element elemUpSince = availability.getChild("upSince", vosi);
    Element elemDownAt = availability.getChild("downAt", vosi);
    Element elemBackAt = availability.getChild("backAt", vosi);
    Element elemNote = availability.getChild("note", vosi);

    Date upSince = null;//  ww  w .  j a  v a  2 s .  co  m
    Date downAt = null;
    Date backAt = null;
    String note = null;

    if (elemUpSince != null)
        upSince = df.parse(elemUpSince.getText());
    if (elemDownAt != null)
        downAt = df.parse(elemDownAt.getText());
    if (elemBackAt != null)
        backAt = df.parse(elemBackAt.getText());
    if (elemNote != null)
        note = elemNote.getText();

    return new AvailabilityStatus(available, upSince, downAt, backAt, note);
}

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