Example usage for java.util Set isEmpty

Introduction

In this page you can find the example usage for java.util Set isEmpty.

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this set contains no elements.

Usage

From source file:ch.digitalfondue.jfiveparse.TreeConstructionTest.java

private static void renderNode(Node node, int depth, StringBuilder sb) {

    int spaces = depth == 0 ? 1 : depth * 2 + 1;
    sb.append("|").append(StringUtils.repeat(' ', spaces));

    int depthsForTemplatesChilds = 0;

    if (node instanceof Element) {
        Element elem = (Element) node;
        sb.append("<");
        if (Node.NAMESPACE_MATHML.equals(elem.getNamespaceURI())) {
            sb.append("math ");
        } else if (Node.NAMESPACE_SVG.equals(elem.getNamespaceURI())) {
            sb.append("svg ");
        }/*  www  .j a  v a 2  s.co m*/

        sb.append(elem.getNodeName()).append(">");

        Set<String> attributesName = new TreeSet<>(elem.getAttributes().keySet());
        if (!attributesName.isEmpty()) {
            sb.append("\n");
            for (String k : attributesName) {
                sb.append("|").append(StringUtils.repeat(' ', spaces + 2));

                AttributeNode attribute = elem.getAttributes().get(k);
                if (attribute.getNamespace() != null) {
                    if (Node.NAMESPACE_XLINK.equals(attribute.getNamespace())) {
                        sb.append("xlink ");
                    } else if (Node.NAMESPACE_XML.equals(attribute.getNamespace())) {
                        sb.append("xml ");
                    } else if (Node.NAMESPACE_XMLNS.equals(attribute.getNamespace())) {
                        sb.append("xmlns ");
                    }
                }

                sb.append(k).append("=\"").append(attribute.getValue()).append("\"\n");
            }
            sb.deleteCharAt(sb.length() - 1);
        }

        if (elem.is("template", Node.NAMESPACE_HTML)) {
            sb.append("\n|").append(StringUtils.repeat(' ', spaces + 2)).append("content");
            depthsForTemplatesChilds += 1;
        }

    } else if (node instanceof Text) {
        sb.append("\"").append(((Text) node).getData()).append("\"");
    } else if (node instanceof Comment) {
        sb.append("<!-- ").append(((Comment) node).getData()).append(" -->");
    } else if (node instanceof DocumentType) {

        DocumentType dt = (DocumentType) node;
        sb.append("<!DOCTYPE ");
        sb.append(dt.getName());
        if (StringUtils.isNotBlank(dt.getPublicId()) || StringUtils.isNotBlank(dt.getSystemId())) {
            sb.append(" ");
            sb.append("\"").append(dt.getPublicId()).append("\"");
            sb.append(" ");
            sb.append("\"").append(dt.getSystemId()).append("\"");
        }
        sb.append(">");
    }

    sb.append("\n");

    for (Node childNode : node.getChildNodes()) {
        renderNode(childNode, depth + 1 + depthsForTemplatesChilds, sb);
    }

}

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From source file:ezbake.security.permissions.PermissionUtils.java

/**
 * Validate Accumulo-style visibility expression against a set of authorizations.
 *
 * @param auths Formal authorizations of the user
 * @param visibilityExpression Accumulo-style visibility expression
 * @return true if validation authorizations against visibility expression, false otherwise
 *//*from  w  ww.  j a  v  a 2 s  .c o m*/
public static boolean validateVisibilityExpression(Set<String> auths, String visibilityExpression) {
    if (StringUtils.isBlank(visibilityExpression)) {
        return true; // No visibility to check
    }

    if (auths == null || auths.isEmpty()) {
        return false; // Has visibility but no auths
    }

    final VisibilityEvaluator visEval = new VisibilityEvaluator(
            new org.apache.accumulo.core.security.Authorizations(auths.toArray(new String[] {})));

    try {
        return visEval.evaluate(new ColumnVisibility(visibilityExpression));
    } catch (final VisibilityParseException e) {
        return false;
    }
}

---

From source file:org.apache.uima.examples.as.GetMetaRequest.java

/**
 * Creates a connection to an MBean Server identified by
 * <code>remoteJMXServerHostName and remoteJMXServerPort</code>
 * /*from  w ww. j  ava2 s . c o  m*/
 * @param remoteJMXServerHostName
 *          - MBeanServer host name
 * @param remoteJMXServerPort
 *          - MBeanServer port
 * @return - none
 * 
 * @throws Exception
 */
private static void initialize(String jmxDomain, String remoteJMXServerHostname, String remoteJMXServerPort)
        throws Exception {
    // Construct connect string to the JMX MBeanServer
    String remoteJmxUrl = "service:jmx:rmi:///jndi/rmi://" + remoteJMXServerHostname + ":" + remoteJMXServerPort
            + "/jmxrmi";

    try {
        JMXServiceURL url = new JMXServiceURL(remoteJmxUrl);
        jmxc = JMXConnectorFactory.connect(url, null);
        brokerMBeanServer = jmxc.getMBeanServerConnection();
        // Its possible that the above code succeeds even though the broker runs
        // with no JMX Connector. At least on windows the above does not throw an
        // exception as expected. It appears that the broker registers self JVMs MBeanServer
        // but it does *not* register any Connections, nor Queues. The code below 
        // checks if the MBean server we are connected to has any QueueMBeans registered.
        // A broker with jmx connector should have queue mbeans registered and thus
        //  the code below should always succeed. Conversely, a broker with no jmx connector
        // reports no queue mbeans.

        //  Query broker MBeanServer for QueueMBeans
        Set queueSet = brokerMBeanServer.queryNames(new ObjectName(jmxDomain + ":*,Type=Queue"),
                (QueryExp) null);
        if (queueSet.isEmpty()) { //  No QueueMBeans, meaning no JMX support
            throw new JmxException("ActiveMQ Broker Not Configured With JMX Support");
        }
    } catch (Exception e) {
        return;
    }
    // Query JMX Server for Broker MBean. We need the broker's name from an MBean to construct
    // queue query string.

    for (Object nameObject : brokerMBeanServer.queryNames(new ObjectName(jmxDomain + ":*,Type=Broker"),
            (QueryExp) null)) {
        ObjectName brokerObjectName = (ObjectName) nameObject;
        if (brokerObjectName.getCanonicalName().endsWith("Type=Broker")) {
            // Extract just the name from the canonical name
            brokerName = brokerObjectName.getCanonicalName().substring(0,
                    brokerObjectName.getCanonicalName().indexOf(","));
            initialized = true;
            break; // got the broker name
        }
    }
}

---

From source file:org.codehaus.groovy.grails.plugins.springsecurity.AuthorizeTools.java

/**
 * Check if the current user has none of the specified roles.
 * @param roles  a comma-delimited list of role names
 * @return <code>true</code> if the user is authenticated and has none the roles
 *//* w  w w . ja v  a 2s  . c om*/
public static boolean ifNotGranted(final String roles) {
    List<GrantedAuthority> granted = getPrincipalAuthorities();
    Set<String> grantedCopy = retainAll(granted, parseAuthoritiesString(roles));
    return grantedCopy.isEmpty();
}

---

From source file:org.codehaus.groovy.grails.plugins.springsecurity.AuthorizeTools.java

/**
 * Check if the current user has any of the specified roles.
 * @param roles  a comma-delimited list of role names
 * @return <code>true</code> if the user is authenticated and has any the roles
 *//*w  w  w. j av  a 2 s .  com*/
public static boolean ifAnyGranted(final String roles) {
    List<GrantedAuthority> granted = getPrincipalAuthorities();
    Set<String> grantedCopy = retainAll(granted, parseAuthoritiesString(roles));
    return !grantedCopy.isEmpty();
}

---

From source file:com.haulmont.cuba.gui.components.filter.UserSetHelper.java

public static String createIdsString(Set<String> current, Collection entities) {
    Set<String> convertedSet = new HashSet<>();
    for (Object entity : entities) {
        convertedSet.add(((BaseUuidEntity) entity).getId().toString());
    }//from w  w  w.j a  va2s .  co m
    current.addAll(convertedSet);
    if (current.isEmpty()) {
        return "NULL";
    }
    StringBuilder listOfId = new StringBuilder();
    Iterator it = current.iterator();
    while (it.hasNext()) {
        listOfId.append(it.next());
        if (it.hasNext()) {
            listOfId.append(',');
        }
    }
    return listOfId.toString();
}

---

From source file:com.haulmont.cuba.gui.components.filter.UserSetHelper.java

public static String removeIds(Set<String> current, Collection entities) {
    Set<String> convertedSet = new HashSet<>();
    for (Object entity : entities) {
        convertedSet.add(((BaseUuidEntity) entity).getId().toString());
    }/*from  w  ww .  j  a  v  a 2  s  .  c o  m*/
    current.removeAll(convertedSet);
    if (current.isEmpty()) {
        return "NULL";
    }
    StringBuilder listOfId = new StringBuilder();
    Iterator it = current.iterator();
    while (it.hasNext()) {
        listOfId.append(it.next());
        if (it.hasNext()) {
            listOfId.append(',');
        }
    }
    return listOfId.toString();
}

---

From source file:Main.java

/**
 * Get the elements who's tags match those passed in. 
 * @param nodeList - the node list in which to look for elements 
 * @param tags - the tags to match (empty returns all elements).
 * @return The elements that matched.//from  w  w w. j a v  a 2s.com
 */
public static List<Element> getElements(NodeList nodeList, String... tags) {
    int nNodes = nodeList.getLength();
    List<Element> elements = new ArrayList<Element>(nNodes);

    Set<String> tagSet = new HashSet<String>(tags.length);
    for (String tag : tags) {
        tagSet.add(tag);
    }
    for (int i = 0; i < nNodes; ++i) {
        Node node = nodeList.item(i);
        if (node instanceof Element) {
            Element element = (Element) node;
            String tagName = element.getTagName();
            if (tagSet.isEmpty() || tagSet.contains(tagName)) {
                elements.add(element);
            }
        }
    }
    return elements;
}

---

From source file:io.github.lxgaming.teleportbow.managers.CommandManager.java

private static Optional<AbstractCommand> getCommand(AbstractCommand parentCommand, List<String> arguments) {
    Set<AbstractCommand> commands = Toolbox.newLinkedHashSet();
    if (parentCommand != null) {
        commands.addAll(parentCommand.getChildren());
    } else {//w ww  .ja  v a2s. c  om
        commands.addAll(getCommands());
    }

    if (arguments.isEmpty() || commands.isEmpty()) {
        return Optional.ofNullable(parentCommand);
    }

    for (AbstractCommand command : commands) {
        if (Toolbox.containsIgnoreCase(command.getAliases(), arguments.get(0))) {
            arguments.remove(0);
            return getCommand(command, arguments);
        }
    }

    return Optional.ofNullable(parentCommand);
}

---

From source file:com.net2plan.utils.CollectionUtils.java

/**
 * Checks whether all elements of a collection are present in another one.
 *
 * @param <A> Key type// w ww.java 2s.  c o m
 * @param container Container collection
 * @param collection Collection with elements to be checked
 * @return {@code true} if all elements in {@code collection} are present in {@code container}, and {@code false} otherwise. If {@code container} is empty, it will return {@code false}
 */
public static <A> boolean containsAll(Collection<A> container, Collection<A> collection) {
    if (container.isEmpty())
        return false;

    Set<A> set = new LinkedHashSet<A>(container);
    set.removeAll(collection);

    return set.isEmpty();
}

---

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