Example usage for java.util Set size

Introduction

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

Prototype

int size();

Source Link

Document

Returns the number of elements in this set (its cardinality).

Usage

From source file:edu.oregonstate.eecs.mcplan.abstraction.WekaUtil.java

public static Instances powerSet(final Instances D, final int n) {
    final Attribute class_attr = D.classAttribute();

    final ImmutableSet.Builder<Integer> b = new ImmutableSet.Builder<Integer>();
    final int Nattr = class_attr != null ? D.numAttributes() - 1 : D.numAttributes();
    for (final int i : Fn.range(1, Nattr)) {
        b.add(i);//from   w w w.ja va2  s.  c o  m
    }
    final Set<Set<Integer>> index = Sets.powerSet(b.build());

    final ArrayList<Attribute> attributes = new ArrayList<Attribute>();
    for (final Set<Integer> subset : index) {
        if (subset.isEmpty() || subset.size() > n) {
            continue;
        }

        final StringBuilder attr_name = new StringBuilder();
        int count = 0;
        for (final Integer i : subset) {
            if (count++ > 0) {
                attr_name.append("_x_");
            }
            attr_name.append(D.attribute(i).name());
        }

        attributes.add(new Attribute(attr_name.toString()));
    }
    if (class_attr != null) {
        assert (class_attr.isNominal());
        attributes.add(WekaUtil.createNominalAttribute(class_attr.name(), class_attr.numValues()));
    }

    final String Pname = "P" + n + "_" + D.relationName();
    final Instances P = new Instances(Pname, attributes, 0);
    if (class_attr != null) {
        P.setClassIndex(attributes.size() - 1);
    }

    for (final Instance inst : D) {
        final double[] xp = new double[attributes.size()];
        int idx = 0;
        for (final Set<Integer> subset : index) {
            if (subset.isEmpty() || subset.size() > n) {
                continue;
            }

            double p = 1.0;
            for (final Integer i : subset) {
                p *= inst.value(i);
            }
            xp[idx++] = p;
        }
        if (class_attr != null) {
            xp[idx++] = inst.classValue();
        }

        WekaUtil.addInstance(P, new DenseInstance(inst.weight(), xp));
    }

    return P;
}

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From source file:com.act.lcms.db.analysis.Utils.java

/**
 * Filters a set of metlin masses by include/exclude ion names.
 * @param metlinMassesPreFilter A map of ion names to masses.
 * @param includeIons A set of ion names to include (all others will be excluded).
 * @param excludeIons A set of ion names to exclude.  Exclusion takes priority over inclusion.
 * @return A map of ion names to masses filtered by the include/exclude sets.
 *//*from   w ww.j av a  2  s  .  c  om*/
public static Map<String, Double> filterMasses(Map<String, Double> metlinMassesPreFilter,
        Set<String> includeIons, Set<String> excludeIons) {
    // Don't filter if there's nothing by which to filter.
    if ((includeIons == null || includeIons.size() == 0) && (excludeIons == null || excludeIons.size() == 0)) {
        return metlinMassesPreFilter;
    }
    // Create a fresh map and add from the old one as we go.  (Could also copy and remove, but that seems weird.)
    Map<String, Double> metlinMasses = new HashMap<>(metlinMassesPreFilter.size());
    /* Iterate over the old copy to reduce the risk of concurrent modification exceptions.
     * Note: this is not thread safe. */
    for (Map.Entry<String, Double> entry : metlinMassesPreFilter.entrySet()) {
        // Skip all exclude values immediately.
        if (excludeIons != null && excludeIons.contains(entry.getKey())) {
            continue;
        }
        // If includeIons is defined, only keep those
        if (includeIons == null || includeIons.contains(entry.getKey())) {
            metlinMasses.put(entry.getKey(), entry.getValue());
        }
    }

    return metlinMasses;
}

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From source file:info.magnolia.importexport.Bootstrapper.java

/**
 * Bootstrap a specific repository.//from ww  w  .j a  v  a  2  s  . c  o  m
 */
public static boolean bootstrapRepository(String[] bootdirs, String repositoryName, BootstrapFilter filter) {
    Set<File> xmlfileset = getBootstrapFiles(bootdirs, repositoryName, filter);

    if (xmlfileset.isEmpty()) {
        log.debug("No bootstrap files found for repository [{}], skipping...", repositoryName);
        return true;
    }

    log.info("Trying to import content from {} files into repository [{}]", Integer.toString(xmlfileset.size()),
            repositoryName);

    final File[] files = xmlfileset.toArray(new File[xmlfileset.size()]);
    return bootstrapFiles(repositoryName, files);
}

---

From source file:com.fanfou.app.opensource.api.ApiParser.java

public static <T> ContentValues[] toContentValuesArray(final Set<? extends Storable<T>> t) {
    if ((t == null) || (t.size() == 0)) {
        return null;
    }// ww w  . j  a  v  a 2  s.com

    final ArrayList<Storable<T>> s = new ArrayList<Storable<T>>();
    s.addAll(t);
    return ApiParser.toContentValuesArray(s);

    // ArrayList<ContentValues> values=new ArrayList<ContentValues>();
    // Iterator<? extends Storable<T>> i=t.iterator();
    // while (i.hasNext()) {
    // Storable<T> st=i.next();
    // values.add(st.toContentValues());
    // }
    // return (ContentValues[]) values.toArray(new
    // ContentValues[values.size()]);

}

---

From source file:org.tec.webapp.jdbc.entity.support.PreparedStatementBuilder.java

/**
 * Build prepared statement for Select/* w  ww  .  j  a va2s  .  c o m*/
 *
 * @param tablename the table to select from
 * @param columns the set of column names
 * @param whereParams the map of where params
 * @param whereClause the string where clause
 * @return PreparedStatementBuilder to select
 */
public static PreparedStatementBuilder getSelectBuilder(String tablename, Set<String> columns,
        ParameterMap whereParams, String whereClause) {
    // Nothing to update
    if (0 == columns.size()) {
        throw new RuntimeException("No columns provided to select. " + tablename);
    }

    // Build the actual prepared statement
    StringBuilder buf = new StringBuilder();
    buf.append("SELECT ");

    for (Iterator<String> itCol = columns.iterator(); itCol.hasNext();) {
        buf.append(itCol.next());
        if (itCol.hasNext()) {
            buf.append(',');
        }
    }

    buf.append(" FROM ");
    buf.append(tablename);

    if (whereClause != null && whereClause.length() > 0) {
        buf.append(" WHERE ").append(whereClause);
    }

    return new PreparedStatementBuilder(buf.toString(), null, whereParams, 0);
}

---

From source file:net.big_oh.common.utils.CollectionsUtil.java

/**
 * /*from w w w  .j a  v a2  s  .  c  o m*/
 * @param <T>
 * @param originalSet
 *            The set of original objects from which combinations of size k
 *            will be generated.
 * @param k
 *            The size of combinations to be generated.
 * @return Returns the set of all size k sets (or combinations) that can be
 *         constructed from the originalSet
 * @throws IllegalArgumentException
 *             thrown if k is less than zero of greater than the size of the
 *             original set.
 */
@SuppressWarnings("unchecked")
public static <T> Set<Set<T>> getCombinations(Set<T> originalSet, int k) throws IllegalArgumentException {

    // sanity check
    if (k < 0) {
        throw new IllegalArgumentException("The value of the k parameter cannot be less than zero.");
    }
    if (k > originalSet.size()) {
        throw new IllegalArgumentException(
                "The value of the k parameter cannot be greater than the size of originalSet.");
    }

    // base case ... k == 0
    if (k == 0) {
        Set<Set<T>> combinations = new HashSet<Set<T>>();
        combinations.add(new HashSet<T>());
        return combinations;
    }

    // base case ... k == 1
    if (k == 1) {
        Set<Set<T>> combinations = new HashSet<Set<T>>();
        for (T t : originalSet) {
            Set<T> combination = new HashSet<T>();
            combination.add(t);
            combinations.add(combination);
        }
        return combinations;
    }

    // recursive case
    T arbitraryElement = (T) CollectionUtils.get(originalSet, 0);

    Set<T> everythingElse = new HashSet<T>(originalSet);
    everythingElse.remove(arbitraryElement);

    Set<Set<T>> combinations = new HashSet<Set<T>>();

    // pair arbitraryElelement with combinations of size k-1 from the
    // everythingElse collection
    for (Set<T> combinationForEverythingElse : getCombinations(everythingElse, k - 1)) {
        combinationForEverythingElse.add(arbitraryElement);
        combinations.add(combinationForEverythingElse);
    }

    // get combinations of size k from the everythingElse collection
    if (k <= everythingElse.size()) {
        for (Set<T> combinationForEverythingElse : getCombinations(everythingElse, k)) {
            combinations.add(combinationForEverythingElse);
        }
    }

    return combinations;
}

---

From source file:com.github.gdfm.shobaidogu.StatsUtils.java

/**
 * Computes the fraction of source elements that are also in target.
 * //from w ww  .  j a va  2  s.  c o m
 * @param source
 *          the source set.
 * @param target
 *          the target set.
 * @return the fraction.
 */
public static <T> double hitPercent(Set<T> source, Set<T> target) {
    checkNotNull(source);
    checkNotNull(target);
    if (source.isEmpty() || target.isEmpty())
        return 0;
    double intersectSize = Sets.intersection(source, target).size();
    return intersectSize / source.size();
}

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From source file:com.jsen.javascript.java.HostedJavaObject.java

/**
 * Returns merged enumerable properties from given object members and already known super IDs.
 * //from   www .  j  a  v a  2s  . co m
 * @param objectMembers Object members that might have some enumerable properties.
 * @param superIds IDs that should be included into result array.
 * @return Array of the enumerable properties.
 */
public static Object[] getIds(ObjectMembers objectMembers, Object[] superIds) {
    Set<String> membersNames = objectMembers.getEnumerableMemberNames();

    Object[] returnIds = new Object[membersNames.size() + superIds.length];

    int i = 0;
    for (; i < superIds.length; i++) {
        returnIds[i] = superIds[i];
    }

    for (String name : membersNames) {
        returnIds[i] = name;
        i++;
    }

    return returnIds;
}

---

From source file:com.gargoylesoftware.htmlunit.runners.TestCaseCorrector.java

private static void removeNotYetImplemented(final List<String> lines, final int i, final String browserString) {
    final String previous = lines.get(i - 1);
    if (previous.contains("@NotYetImplemented")) {
        if (previous.indexOf('(') != -1) {
            final int p0 = previous.indexOf('(') + 1;
            final int p1 = previous.lastIndexOf(')');
            String browsers = previous.substring(p0, p1);
            if (browsers.indexOf('{') != -1) {
                browsers = browsers.substring(1, browsers.length() - 1).trim();
            }//from  w w w .  jav a 2 s .  c  om
            final Set<String> browserSet = new HashSet<>();
            for (final String browser : browsers.split(",")) {
                browserSet.add(browser.trim());
            }
            browserSet.remove(browserString);
            if (browserSet.size() == 1) {
                lines.set(i - 1, "    @NotYetImplemented(" + browserSet.iterator().next() + ")");
            } else if (browserSet.size() > 1) {
                lines.set(i - 1, "    @NotYetImplemented({ " + StringUtils.join(browserSet, ", ") + " })");
            } else {
                lines.remove(i - 1);
            }
        } else {
            final List<String> allBrowsers = new ArrayList<>(
                    Arrays.asList("CHROME", "IE11", "FF31", "FF38", "EDGE"));
            for (final Iterator<String> it = allBrowsers.iterator(); it.hasNext();) {
                if (it.next().equals(browserString)) {
                    it.remove();
                }
            }
            lines.set(i - 1, "    @NotYetImplemented({ " + StringUtils.join(allBrowsers, ", ") + " })");
        }
    }
}

---

From source file:com.gemstone.gemfire.internal.security.GeodeSecurityUtil.java

/**
 * It first looks the shiro subject in AccessControlContext since JMX will
 * use multiple threads to process operations from the same client, then it
 * looks into Shiro's thead context.//from   www.j  a v  a2 s  .c o m
 *
 * @return the shiro subject, null if security is not enabled
 */
public static Subject getSubject() {
    if (!isIntegratedSecurity) {
        return null;
    }

    Subject currentUser = null;

    // First try get the principal out of AccessControlContext instead of Shiro's Thread context
    // since threads can be shared between JMX clients.
    javax.security.auth.Subject jmxSubject = javax.security.auth.Subject
            .getSubject(AccessController.getContext());

    if (jmxSubject != null) {
        Set<ShiroPrincipal> principals = jmxSubject.getPrincipals(ShiroPrincipal.class);
        if (principals.size() > 0) {
            ShiroPrincipal principal = principals.iterator().next();
            currentUser = principal.getSubject();
            ThreadContext.bind(currentUser);
            return currentUser;
        }
    }

    // in other cases like admin rest call or pulse authorization
    currentUser = SecurityUtils.getSubject();

    if (currentUser == null || currentUser.getPrincipal() == null) {
        throw new GemFireSecurityException("Error: Anonymous User");
    }

    return currentUser;
}

---

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