Example usage for org.jdom2 Element getChild

Introduction

In this page you can find the example usage for org.jdom2 Element getChild.

Prototype

public Element getChild(final String cname, final Namespace ns) 

Source Link

Document

This returns the first child element within this element with the given local name and belonging to the given namespace.

Usage

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

License:Open Source License

private Job parseJob(Document doc) throws ParseException, DataConversionException {
    Element root = doc.getRootElement();

    String jobID = root.getChildText(JobAttribute.JOB_ID.getAttributeName(), UWS.NS);
    if (jobID != null && jobID.trim().length() == 0)
        jobID = null;// www  .  j av  a  2  s.  co m
    String runID = parseStringContent(root.getChild(JobAttribute.RUN_ID.getAttributeName(), UWS.NS));
    String ownerID = parseStringContent(root.getChild(JobAttribute.OWNER_ID.getAttributeName(), UWS.NS));
    Date quote = parseDate(parseStringContent(root.getChild(JobAttribute.QUOTE.getAttributeName(), UWS.NS)));
    Date startTime = parseDate(
            parseStringContent(root.getChild(JobAttribute.START_TIME.getAttributeName(), UWS.NS)));
    Date endTime = parseDate(
            parseStringContent(root.getChild(JobAttribute.END_TIME.getAttributeName(), UWS.NS)));
    Date creationTime = parseDate(
            parseStringContent(root.getChild(JobAttribute.CREATION_TIME.getAttributeName(), UWS.NS)));
    Date destructionTime = parseDate(
            parseStringContent(root.getChild(JobAttribute.DESTRUCTION_TIME.getAttributeName(), UWS.NS)));
    Long executionDuration = new Long(
            parseStringContent(root.getChild(JobAttribute.EXECUTION_DURATION.getAttributeName(), UWS.NS)));

    ExecutionPhase executionPhase = parseExecutionPhase(doc);

    ErrorSummary errorSummary = null;
    if (executionPhase.equals(ExecutionPhase.ERROR))
        errorSummary = parseErrorSummary(doc);

    List<Result> resultsList = parseResultsList(doc);

    List<Parameter> parameterList = parseParametersList(doc);

    JobInfo jobInfo = parseJobInfo(doc);

    Job job = new Job(jobID, executionPhase, executionDuration, destructionTime, quote, startTime, endTime,
            creationTime, errorSummary, ownerID, runID, null, null, jobInfo, parameterList, resultsList);

    return job;
}

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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;//from w w  w  .j  av a2s .  c o  m
        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;
}

---

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;//from  w ww.ja  v  a  2s .co  m
        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;
}

---

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

License:Open Source License

private ErrorSummary parseErrorSummary(Document doc) {
    ErrorSummary rtn = null;//from  w ww.j  ava2s . c o 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;
}

---

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

License:Open Source License

private JobInfo parseJobInfo(Document doc) {
    JobInfo rtn = null;//from   ww  w.j  a  va  2 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;
}

---

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

License:Open Source License

/**
 * Constructs a LinkNode from the given root Element of the
 * Document, Document Namespace, and Node path.
 *
 * @param el a node Element in the Document.
 * @param namespace Document Namespace./*from w  w w.  j  av a  2s.c o  m*/
 * @param uri Node uri attribute.
 * @param target Target resource pointed to by the LinkNode
 * @return LinkNode.
 * @throws NodeParsingException if there is an error parsing the XML.
 * @throws URISyntaxException 
 */
protected Node buildLinkNode(Element el, Namespace namespace, String uri)
        throws NodeParsingException, URISyntaxException {
    // Instantiate a LinkNode class
    LinkNode node;
    VOSURI vosuri;

    // target element in the node element
    Element target = el.getChild("target", namespace);
    if (target == null) {
        String error = "target element not found in node element";
        throw new NodeParsingException(error);
    }
    log.debug("node target: " + target.getText());

    try {
        vosuri = new VOSURI(uri);
    } catch (URISyntaxException e) {
        String error = "invalid node uri " + uri;
        throw new NodeParsingException(error, e);
    }

    try {
        node = new LinkNode(vosuri, new URI(target.getText()));
    } catch (URISyntaxException e) {
        String error = "invalid node target " + target.getText();
        throw new NodeParsingException(error, e);
    }

    // properties element
    node.setProperties(getProperties(el, namespace));

    return node;
}

---

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

License:Open Source License

/**
 * Constructs a ContainerNode from the given Element of the
 * Document, Document Namespace, and Node path.
 *
 * @param el a node Element of the Document.
 * @param namespace Document Namespace./*from  w ww  .  ja v  a2 s.  co m*/
 * @param uri Node uri attribute.
 * @return ContainerNode
 * @throws NodeParsingException if there is an error parsing the XML.
 * @throws URISyntaxException 
 */
protected Node buildContainerNode(Element el, Namespace namespace, String uri)
        throws NodeParsingException, URISyntaxException {
    // Instantiate a ContainerNode class
    ContainerNode node;
    try {
        node = new ContainerNode(new VOSURI(uri));
    } catch (URISyntaxException e) {
        String error = "invalid node uri " + uri;
        throw new NodeParsingException(error, e);
    }

    // properties element
    node.setProperties(getProperties(el, namespace));

    // nodes element
    Element nodes = el.getChild("nodes", namespace);
    if (nodes == null) {
        String error = "nodes element not found in node";
        throw new NodeParsingException(error);
    }

    // list of child nodes
    List<Element> nodesList = nodes.getChildren("node", namespace);
    for (Element childNode : nodesList) {
        String childNodeUri = childNode.getAttributeValue("uri");
        if (childNodeUri == null) {
            String error = "uri attribute not found in nodes node element";
            throw new NodeParsingException(error);
        }
        // Get the xsi:type attribute which defines the Node class
        String xsiType = childNode.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);

        if (type.equals(ContainerNode.class.getSimpleName()))
            node.getNodes().add(buildContainerNode(childNode, namespace, childNodeUri));
        else if (type.equals(DataNode.class.getSimpleName()))
            node.getNodes().add(buildDataNode(childNode, namespace, childNodeUri));
        else if (type.equals(LinkNode.class.getSimpleName()))
            node.getNodes().add(buildLinkNode(childNode, namespace, childNodeUri));
        else
            throw new NodeParsingException("unsupported node type " + type);

        log.debug("added child node: " + childNodeUri);
    }

    return node;
}

---

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

License:Open Source License

/**
 * Builds a List of NodeProperty objects from the Document property Elements.
 *
 * @param el a node Element of the Document.
 * @param namespace Document Namespace.//from w  w w.j  av a2  s  .  co m
 * @return List of NodeProperty objects.
 * @throws NodeParsingException if there is an error parsing the XML.
 */
protected List<NodeProperty> getProperties(Element el, Namespace namespace) throws NodeParsingException {
    // properties element
    Element properties = el.getChild("properties", namespace);
    if (properties == null) {
        String error = "properties element not found";
        throw new NodeParsingException(error);
    }

    // new NodeProperty List
    List<NodeProperty> set = new ArrayList<NodeProperty>();

    // properties property elements
    List<Element> propertyList = properties.getChildren("property", namespace);
    for (Element property : propertyList) {
        String propertyUri = property.getAttributeValue("uri");
        if (propertyUri == null) {
            String error = "uri attribute not found in property element " + property;
            throw new NodeParsingException(error);
        }

        // xsi:nil set to true indicates Property is to be deleted
        String xsiNil = property.getAttributeValue("nil", xsiNamespace);
        boolean markedForDeletion = false;
        if (xsiNil != null)
            markedForDeletion = xsiNil.equalsIgnoreCase("true") ? true : false;

        // if marked for deletetion, property can not contain text content
        String text = property.getText();
        if (markedForDeletion)
            text = "";

        // create new NodeProperty
        NodeProperty nodeProperty = new NodeProperty(propertyUri, text);

        // set readOnly attribute
        String readOnly = property.getAttributeValue("readOnly");
        if (readOnly != null)
            nodeProperty.setReadOnly((readOnly.equalsIgnoreCase("true") ? true : false));

        // markedForDeletion attribute
        nodeProperty.setMarkedForDeletion(markedForDeletion);
        set.add(nodeProperty);
    }

    return set;
}

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

License:Open Source License

protected List<URI> getViewURIs(Element root, Namespace namespace, String parent)
        throws NodeParsingException, URISyntaxException {

    // new View List
    List<URI> list = new ArrayList<URI>();

    // view parent element
    Element parentElement = root.getChild(parent, namespace);
    if (parentElement == null) {
        return list;
    }//w  w w  . ja  va  2s  .  c o m

    // view elements
    List<Element> uriList = parentElement.getChildren("view", namespace);
    for (Element view : uriList) {
        // view uri attribute
        String viewUri = view.getAttributeValue("uri");
        if (viewUri == null) {
            String error = "uri attribute not found in " + parent + " view element";
            throw new NodeParsingException(error);
        }
        log.debug(parent + "view uri: " + viewUri);
        list.add(new URI(viewUri));
    }

    return list;
}

---

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

License:Open Source License

/**
 * Builds a List of View objects from the view elements contained within
 * the given parent element.//from  w  w  w .j a va  2s .c  o  m
 *
 * @param root Root Element of the Document.
 * @param namespace Document Namespace.
 * @param parent View Parent Node.
 * @return List of View objects.
 * @throws NodeParsingException if there is an error parsing the XML.
 */
protected List<View> getViews(Element root, Namespace namespace, String parent) throws NodeParsingException {
    // view parent element
    Element parentElement = root.getChild(parent, namespace);
    if (parentElement == null) {
        String error = parent + " element not found in node";
        throw new NodeParsingException(error);
    }

    // new View List
    List<View> list = new ArrayList<View>();

    // view elements
    List<Element> viewList = parentElement.getChildren("view", namespace);
    for (Element view : viewList) {
        // view uri attribute
        String viewUri = view.getAttributeValue("uri");
        if (viewUri == null) {
            String error = "uri attribute not found in " + parent + " view element";
            throw new NodeParsingException(error);
        }
        log.debug(parent + "view uri: " + viewUri);

        // new View
        //                View acceptsView = new View(viewUri, node);

        // view original attribute
        String original = view.getAttributeValue("original");
        if (original != null) {
            boolean isOriginal = original.equalsIgnoreCase("true") ? true : false;
            //                    view.setOriginal(isOriginal);
            log.debug(parent + " view original: " + isOriginal);
        }

        List<Element> paramList = view.getChildren("param", namespace);
        for (Element param : paramList) {
            String paramUri = param.getAttributeValue("uri");
            if (paramUri == null) {
                String error = "param uri attribute not found in accepts view element";
                throw new NodeParsingException(error);
            }
            log.debug("accepts view param uri: " + paramUri);
            // TODO: what are params???
        }
    }

    return list;
}

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