Examples with Node org.w3c.dom.Node used on opensource projects

Example 26 with Node

use of org.w3c.dom.Node in project hadoop by apache.

the class QueueConfigurationParser method createHierarchy.

/**
   * @param parent Name of the parent queue
   * @param queueNode
   * @return
   */
private Queue createHierarchy(String parent, Element queueNode) {
    if (queueNode == null) {
        return null;
    }
    //Name of the current queue.
    //Complete qualified queue name.
    String name = "";
    Queue newQueue = new Queue();
    Map<String, AccessControlList> acls = new HashMap<String, AccessControlList>();
    NodeList fields = queueNode.getChildNodes();
    validate(queueNode);
    List<Element> subQueues = new ArrayList<Element>();
    String submitKey = "";
    String adminKey = "";
    for (int j = 0; j < fields.getLength(); j++) {
        Node fieldNode = fields.item(j);
        if (!(fieldNode instanceof Element)) {
            continue;
        }
        Element field = (Element) fieldNode;
        if (QUEUE_NAME_TAG.equals(field.getTagName())) {
            String nameValue = field.getTextContent();
            if (field.getTextContent() == null || field.getTextContent().trim().equals("") || field.getTextContent().contains(NAME_SEPARATOR)) {
                throw new RuntimeException("Improper queue name : " + nameValue);
            }
            if (!parent.equals("")) {
                name += parent + NAME_SEPARATOR;
            }
            //generate the complete qualified name
            //parent.child
            name += nameValue;
            newQueue.setName(name);
            submitKey = toFullPropertyName(name, QueueACL.SUBMIT_JOB.getAclName());
            adminKey = toFullPropertyName(name, QueueACL.ADMINISTER_JOBS.getAclName());
        }
        if (QUEUE_TAG.equals(field.getTagName()) && field.hasChildNodes()) {
            subQueues.add(field);
        }
        if (isAclsEnabled()) {
            if (ACL_SUBMIT_JOB_TAG.equals(field.getTagName())) {
                acls.put(submitKey, new AccessControlList(field.getTextContent()));
            }
            if (ACL_ADMINISTER_JOB_TAG.equals(field.getTagName())) {
                acls.put(adminKey, new AccessControlList(field.getTextContent()));
            }
        }
        if (PROPERTIES_TAG.equals(field.getTagName())) {
            Properties properties = populateProperties(field);
            newQueue.setProperties(properties);
        }
        if (STATE_TAG.equals(field.getTagName())) {
            String state = field.getTextContent();
            newQueue.setState(QueueState.getState(state));
        }
    }
    if (!acls.containsKey(submitKey)) {
        acls.put(submitKey, new AccessControlList(" "));
    }
    if (!acls.containsKey(adminKey)) {
        acls.put(adminKey, new AccessControlList(" "));
    }
    //Set acls
    newQueue.setAcls(acls);
    for (Element field : subQueues) {
        newQueue.addChild(createHierarchy(newQueue.getName(), field));
    }
    return newQueue;
}

Example 27 with Node

use of org.w3c.dom.Node in project hadoop by apache.

the class QueueConfigurationParser method populateProperties.

/**
   * Populate the properties for Queue
   *
   * @param field
   * @return
   */
private Properties populateProperties(Element field) {
    Properties props = new Properties();
    NodeList propfields = field.getChildNodes();
    for (int i = 0; i < propfields.getLength(); i++) {
        Node prop = propfields.item(i);
        //skip this.
        if (!(prop instanceof Element)) {
            continue;
        }
        if (PROPERTY_TAG.equals(prop.getNodeName())) {
            if (prop.hasAttributes()) {
                NamedNodeMap nmp = prop.getAttributes();
                if (nmp.getNamedItem(KEY_TAG) != null && nmp.getNamedItem(VALUE_TAG) != null) {
                    props.setProperty(nmp.getNamedItem(KEY_TAG).getTextContent(), nmp.getNamedItem(VALUE_TAG).getTextContent());
                }
            }
        }
    }
    return props;
}

Example 28 with Node

use of org.w3c.dom.Node in project hadoop by apache.

the class AllocationFileLoaderService method loadQueue.

/**
   * Loads a queue from a queue element in the configuration file
   */
private void loadQueue(String parentName, Element element, Map<String, Resource> minQueueResources, Map<String, Resource> maxQueueResources, Map<String, Resource> maxChildQueueResources, Map<String, Integer> queueMaxApps, Map<String, Integer> userMaxApps, Map<String, Float> queueMaxAMShares, Map<String, ResourceWeights> queueWeights, Map<String, SchedulingPolicy> queuePolicies, Map<String, Long> minSharePreemptionTimeouts, Map<String, Long> fairSharePreemptionTimeouts, Map<String, Float> fairSharePreemptionThresholds, Map<String, Map<AccessType, AccessControlList>> queueAcls, Map<String, Map<ReservationACL, AccessControlList>> resAcls, Map<FSQueueType, Set<String>> configuredQueues, Set<String> reservableQueues, Set<String> nonPreemptableQueues) throws AllocationConfigurationException {
    String queueName = CharMatcher.WHITESPACE.trimFrom(element.getAttribute("name"));
    if (queueName.contains(".")) {
        throw new AllocationConfigurationException("Bad fair scheduler config " + "file: queue name (" + queueName + ") shouldn't contain period.");
    }
    if (queueName.isEmpty()) {
        throw new AllocationConfigurationException("Bad fair scheduler config " + "file: queue name shouldn't be empty or " + "consist only of whitespace.");
    }
    if (parentName != null) {
        queueName = parentName + "." + queueName;
    }
    Map<AccessType, AccessControlList> acls = new HashMap<>();
    Map<ReservationACL, AccessControlList> racls = new HashMap<>();
    NodeList fields = element.getChildNodes();
    boolean isLeaf = true;
    boolean isReservable = false;
    for (int j = 0; j < fields.getLength(); j++) {
        Node fieldNode = fields.item(j);
        if (!(fieldNode instanceof Element))
            continue;
        Element field = (Element) fieldNode;
        if ("minResources".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData().trim();
            Resource val = FairSchedulerConfiguration.parseResourceConfigValue(text);
            minQueueResources.put(queueName, val);
        } else if ("maxResources".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData().trim();
            Resource val = FairSchedulerConfiguration.parseResourceConfigValue(text);
            maxQueueResources.put(queueName, val);
        } else if ("maxChildResources".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData().trim();
            Resource val = FairSchedulerConfiguration.parseResourceConfigValue(text);
            maxChildQueueResources.put(queueName, val);
        } else if ("maxRunningApps".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData().trim();
            int val = Integer.parseInt(text);
            queueMaxApps.put(queueName, val);
        } else if ("maxAMShare".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData().trim();
            float val = Float.parseFloat(text);
            val = Math.min(val, 1.0f);
            queueMaxAMShares.put(queueName, val);
        } else if ("weight".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData().trim();
            double val = Double.parseDouble(text);
            queueWeights.put(queueName, new ResourceWeights((float) val));
        } else if ("minSharePreemptionTimeout".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData().trim();
            long val = Long.parseLong(text) * 1000L;
            minSharePreemptionTimeouts.put(queueName, val);
        } else if ("fairSharePreemptionTimeout".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData().trim();
            long val = Long.parseLong(text) * 1000L;
            fairSharePreemptionTimeouts.put(queueName, val);
        } else if ("fairSharePreemptionThreshold".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData().trim();
            float val = Float.parseFloat(text);
            val = Math.max(Math.min(val, 1.0f), 0.0f);
            fairSharePreemptionThresholds.put(queueName, val);
        } else if ("schedulingPolicy".equals(field.getTagName()) || "schedulingMode".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData().trim();
            SchedulingPolicy policy = SchedulingPolicy.parse(text);
            queuePolicies.put(queueName, policy);
        } else if ("aclSubmitApps".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData();
            acls.put(AccessType.SUBMIT_APP, new AccessControlList(text));
        } else if ("aclAdministerApps".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData();
            acls.put(AccessType.ADMINISTER_QUEUE, new AccessControlList(text));
        } else if ("aclAdministerReservations".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData();
            racls.put(ReservationACL.ADMINISTER_RESERVATIONS, new AccessControlList(text));
        } else if ("aclListReservations".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData();
            racls.put(ReservationACL.LIST_RESERVATIONS, new AccessControlList(text));
        } else if ("aclSubmitReservations".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData();
            racls.put(ReservationACL.SUBMIT_RESERVATIONS, new AccessControlList(text));
        } else if ("reservation".equals(field.getTagName())) {
            isReservable = true;
            reservableQueues.add(queueName);
            configuredQueues.get(FSQueueType.PARENT).add(queueName);
        } else if ("allowPreemptionFrom".equals(field.getTagName())) {
            String text = ((Text) field.getFirstChild()).getData().trim();
            if (!Boolean.parseBoolean(text)) {
                nonPreemptableQueues.add(queueName);
            }
        } else if ("queue".endsWith(field.getTagName()) || "pool".equals(field.getTagName())) {
            loadQueue(queueName, field, minQueueResources, maxQueueResources, maxChildQueueResources, queueMaxApps, userMaxApps, queueMaxAMShares, queueWeights, queuePolicies, minSharePreemptionTimeouts, fairSharePreemptionTimeouts, fairSharePreemptionThresholds, queueAcls, resAcls, configuredQueues, reservableQueues, nonPreemptableQueues);
            isLeaf = false;
        }
    }
    // then store it as a parent queue
    if (isLeaf && !"parent".equals(element.getAttribute("type"))) {
        configuredQueues.get(FSQueueType.LEAF).add(queueName);
    } else {
        if (isReservable) {
            throw new AllocationConfigurationException("The configuration settings" + " for " + queueName + " are invalid. A queue element that " + "contains child queue elements or that has the type='parent' " + "attribute cannot also include a reservation element.");
        }
        configuredQueues.get(FSQueueType.PARENT).add(queueName);
    }
    // The root queue defaults to all access
    for (QueueACL acl : QueueACL.values()) {
        AccessType accessType = SchedulerUtils.toAccessType(acl);
        if (acls.get(accessType) == null) {
            AccessControlList defaultAcl = queueName.equals(ROOT) ? EVERYBODY_ACL : NOBODY_ACL;
            acls.put(accessType, defaultAcl);
        }
    }
    queueAcls.put(queueName, acls);
    resAcls.put(queueName, racls);
    if (maxQueueResources.containsKey(queueName) && minQueueResources.containsKey(queueName) && !Resources.fitsIn(minQueueResources.get(queueName), maxQueueResources.get(queueName))) {
        LOG.warn(String.format("Queue %s has max resources %s less than " + "min resources %s", queueName, maxQueueResources.get(queueName), minQueueResources.get(queueName)));
    }
}

Example 29 with Node

use of org.w3c.dom.Node in project hadoop by apache.

the class QueuePlacementRule method initializeFromXml.

public void initializeFromXml(Element el) throws AllocationConfigurationException {
    boolean create = true;
    NamedNodeMap attributes = el.getAttributes();
    Map<String, String> args = new HashMap<String, String>();
    for (int i = 0; i < attributes.getLength(); i++) {
        Node node = attributes.item(i);
        String key = node.getNodeName();
        String value = node.getNodeValue();
        if (key.equals("create")) {
            create = Boolean.parseBoolean(value);
        } else {
            args.put(key, value);
        }
    }
    initialize(create, args);
}

Example 30 with Node

use of org.w3c.dom.Node in project hadoop by apache.

the class QueuePlacementPolicy method fromXml.

/**
   * Builds a QueuePlacementPolicy from an xml element.
   */
public static QueuePlacementPolicy fromXml(Element el, Map<FSQueueType, Set<String>> configuredQueues, Configuration conf) throws AllocationConfigurationException {
    List<QueuePlacementRule> rules = new ArrayList<QueuePlacementRule>();
    NodeList elements = el.getChildNodes();
    for (int i = 0; i < elements.getLength(); i++) {
        Node node = elements.item(i);
        if (node instanceof Element) {
            QueuePlacementRule rule = createAndInitializeRule(node);
            rules.add(rule);
        }
    }
    return new QueuePlacementPolicy(rules, configuredQueues, conf);
}