Example usage for java.util List toArray

Introduction

In this page you can find the example usage for java.util List toArray.

Prototype

<T> T[] toArray(T[] a);

Source Link

Document

Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.

Usage

From source file:com.jayway.jaxrs.hateoas.HateoasVerbosity.java

/**
 * Get a HateoasVerbosity corresponding to the comma-delimited String of {@link HateoasOption} values.
 *
 * @param optionsString comma-delimited (,) or semi-colon (;) String of {@link HateoasOption} values
 * @return a HateoasVerbosity instance wrapping all the specified options,
 *         or the default verbosity if an empty string is specified.
 * @throws IllegalArgumentException if an invalid option is supplied
 *//*from w w  w  .j  a v  a  2 s.c o m*/
public static HateoasVerbosity valueOf(String optionsString) {
    if (StringUtils.isNotBlank(optionsString)) {
        String[] headerSplit;
        if (optionsString.contains(",")) {
            headerSplit = StringUtils.split(optionsString, ",");
        } else {
            headerSplit = StringUtils.split(optionsString, ";");
        }
        List<HateoasOption> options = new LinkedList<HateoasOption>();
        for (String oneOption : headerSplit) {
            options.add(HateoasOption.valueOf(oneOption.trim()));
        }

        return new HateoasVerbosity(options.toArray(new HateoasOption[0]));
    } else {
        return defaultVerbosity;
    }

}

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From source file:com.netflix.genie.core.jpa.specifications.JpaCommandSpecs.java

/**
 * Get a specification using the specified parameters.
 *
 * @param name     The name of the command
 * @param user     The name of the user who created the command
 * @param statuses The status of the command
 * @param tags     The set of tags to search the command for
 * @return A specification object used for querying
 *//* w  ww  .  j  a v  a  2 s  .c  o m*/
public static Specification<CommandEntity> find(final String name, final String user,
        final Set<CommandStatus> statuses, final Set<String> tags) {
    return (final Root<CommandEntity> root, final CriteriaQuery<?> cq, final CriteriaBuilder cb) -> {
        final List<Predicate> predicates = new ArrayList<>();
        if (StringUtils.isNotBlank(name)) {
            predicates.add(JpaSpecificationUtils.getStringLikeOrEqualPredicate(cb,
                    root.get(CommandEntity_.name), name));
        }
        if (StringUtils.isNotBlank(user)) {
            predicates.add(JpaSpecificationUtils.getStringLikeOrEqualPredicate(cb,
                    root.get(CommandEntity_.user), user));
        }
        if (statuses != null && !statuses.isEmpty()) {
            final List<Predicate> orPredicates = statuses.stream()
                    .map(status -> cb.equal(root.get(CommandEntity_.status), status))
                    .collect(Collectors.toList());
            predicates.add(cb.or(orPredicates.toArray(new Predicate[orPredicates.size()])));
        }
        if (tags != null && !tags.isEmpty()) {
            predicates
                    .add(cb.like(root.get(CommandEntity_.tags), JpaSpecificationUtils.getTagLikeString(tags)));
        }
        return cb.and(predicates.toArray(new Predicate[predicates.size()]));
    };
}

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From source file:com.bosscs.spark.commons.utils.AnnotationUtils.java

/**
 * Utility method that filters out all the fields _not_ annotated
 * with the {@link com.bosscs.spark.commons.annotations.HadoopField} annotation.
 *
 * @param clazz the Class object for which we want to resolve deep fields.
 * @return an array of deep Field(s)./*w w w . j a v a 2  s .c  o m*/
 */
public static Field[] filterDeepFields(Class clazz) {
    Field[] fields = Utils.getAllFields(clazz);
    List<Field> filtered = new ArrayList<>();
    for (Field f : fields) {
        if (f.isAnnotationPresent(HadoopField.class)) {
            filtered.add(f);
        }
    }
    return filtered.toArray(new Field[filtered.size()]);
}

---

From source file:com.mxep.web.common.persistence.DynamicSpecifications.java

public static <T> Specification<T> bySearchFilter(final Collection<SearchFilter> filters,
        final Class<T> entityClazz) {
    return new Specification<T>() {
        @Override//  w ww . j  a va2s.  c  o m
        public Predicate toPredicate(Root<T> root, CriteriaQuery<?> query, CriteriaBuilder builder) {
            if (Collections3.isNotEmpty(filters)) {
                List<Predicate> predicates = getPredicate(filters, root, query, builder);
                // ? and ???
                if (!predicates.isEmpty()) {
                    return builder.and(predicates.toArray(new Predicate[predicates.size()]));
                }
            }
            return builder.conjunction();
        }
    };
}

---

From source file:com.norconex.jefmon.model.ConfigurationDAO.java

private static String[] loadRemoteUrls(XMLConfiguration xml) {
    List<HierarchicalConfiguration> nodes = xml.configurationsAt("remote-instances.url");
    List<String> urls = new ArrayList<String>();
    for (HierarchicalConfiguration node : nodes) {
        urls.add(node.getString(""));
    }/*from  w w w  .j  a va2s  .  c om*/
    return urls.toArray(ArrayUtils.EMPTY_STRING_ARRAY);
}

---

From source file:com.bluexml.xforms.messages.DefaultMessages.java

private static String[] getPropertiesAsStringArray(String fileName) {
    String[] lines = null;/*from  w  w w  . j  av  a  2 s .  co m*/

    // get file stream from classPath
    InputStream in = DefaultMessages.class.getResourceAsStream(fileName);
    List<?> l = null;
    try {
        l = IOUtils.readLines(in);
    } catch (IOException e) {
        l = new ArrayList<String>();
        System.err.println("Stream for default file " + fileName + " can't be oppened :" + e);
    }
    lines = l.toArray(new String[l.size()]);
    return lines;
}

---

From source file:com.netflix.genie.core.jpa.specifications.JpaJobSpecs.java

/**
 * Generate a criteria query predicate for a where clause based on the given parameters.
 *
 * @param root        The root to use/* www.  ja  v  a 2  s .c  o m*/
 * @param cb          The criteria builder to use
 * @param id          The job id
 * @param name        The job name
 * @param user        The user who created the job
 * @param statuses    The job statuses
 * @param tags        The tags for the jobs to find
 * @param clusterName The cluster name
 * @param cluster     The cluster the job should have been run on
 * @param commandName The command name
 * @param command     The command the job should have been run with
 * @param minStarted  The time which the job had to start after in order to be return (inclusive)
 * @param maxStarted  The time which the job had to start before in order to be returned (exclusive)
 * @param minFinished The time which the job had to finish after in order to be return (inclusive)
 * @param maxFinished The time which the job had to finish before in order to be returned (exclusive)
 * @return The specification
 */
public static Predicate getFindPredicate(final Root<JobEntity> root, final CriteriaBuilder cb, final String id,
        final String name, final String user, final Set<JobStatus> statuses, final Set<String> tags,
        final String clusterName, final ClusterEntity cluster, final String commandName,
        final CommandEntity command, final Date minStarted, final Date maxStarted, final Date minFinished,
        final Date maxFinished) {
    final List<Predicate> predicates = new ArrayList<>();
    if (StringUtils.isNotBlank(id)) {
        predicates.add(JpaSpecificationUtils.getStringLikeOrEqualPredicate(cb, root.get(JobEntity_.id), id));
    }
    if (StringUtils.isNotBlank(name)) {
        predicates
                .add(JpaSpecificationUtils.getStringLikeOrEqualPredicate(cb, root.get(JobEntity_.name), name));
    }
    if (StringUtils.isNotBlank(user)) {
        predicates
                .add(JpaSpecificationUtils.getStringLikeOrEqualPredicate(cb, root.get(JobEntity_.user), user));
    }
    if (statuses != null && !statuses.isEmpty()) {
        final List<Predicate> orPredicates = statuses.stream()
                .map(status -> cb.equal(root.get(JobEntity_.status), status)).collect(Collectors.toList());
        predicates.add(cb.or(orPredicates.toArray(new Predicate[orPredicates.size()])));
    }
    if (tags != null && !tags.isEmpty()) {
        predicates.add(cb.like(root.get(JobEntity_.tags), JpaSpecificationUtils.getTagLikeString(tags)));
    }
    if (cluster != null) {
        predicates.add(cb.equal(root.get(JobEntity_.cluster), cluster));
    }
    if (StringUtils.isNotBlank(clusterName)) {
        predicates.add(JpaSpecificationUtils.getStringLikeOrEqualPredicate(cb, root.get(JobEntity_.clusterName),
                clusterName));
    }
    if (command != null) {
        predicates.add(cb.equal(root.get(JobEntity_.command), command));
    }
    if (StringUtils.isNotBlank(commandName)) {
        predicates.add(JpaSpecificationUtils.getStringLikeOrEqualPredicate(cb, root.get(JobEntity_.commandName),
                commandName));
    }
    if (minStarted != null) {
        predicates.add(cb.greaterThanOrEqualTo(root.get(JobEntity_.started), minStarted));
    }
    if (maxStarted != null) {
        predicates.add(cb.lessThan(root.get(JobEntity_.started), maxStarted));
    }
    if (minFinished != null) {
        predicates.add(cb.greaterThanOrEqualTo(root.get(JobEntity_.finished), minFinished));
    }
    if (maxFinished != null) {
        predicates.add(cb.lessThan(root.get(JobEntity_.finished), maxFinished));
    }
    return cb.and(predicates.toArray(new Predicate[predicates.size()]));
}

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From source file:org.eclipse.virgo.snaps.SnapsTagTests.java

private static final String[] toArray(Enumeration<?> enumeration) {
    List<String> list = new ArrayList<String>();
    while (enumeration.hasMoreElements()) {
        String element = enumeration.nextElement().toString();
        list.add(element);/* w  ww .j  a  v  a 2 s . c  o  m*/
    }
    return list.toArray(new String[list.size()]);
}

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From source file:com.googlecode.jtiger.modules.ecside.core.TableModelUtils.java

/**
 * The value needs to be a String[]. A String, Null, or List will be
 * converted to a String[]. In addition it will attempt to do a String
 * conversion for other object types./*from  w  w w.  ja va 2s . com*/
 * 
 * @param value The value to convert to an String[]
 * @return A String[] value.
 */
public static String[] getValueAsArray(Object value) {
    if (value == null) {
        return new String[] {}; // put in a placeholder
    }

    if (value instanceof String[]) {
        return (String[]) value;
    } else if (value instanceof List) {
        List valueList = (List) value;
        return (String[]) valueList.toArray(new String[valueList.size()]);
    }

    return new String[] { value.toString() };
}

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From source file:kieker.tools.opad.timeseries.forecast.mean.MeanForecasterJava.java

/**
 *
 * @param allHistory// w ww  . j av  a 2 s .  c  om
 *            List there null values should deltet in this function
 * @return List/Array with no NullValues
 */
public static Double[] removeNullValues(final List<Double> allHistory) {
    final List<Double> newList = new ArrayList<Double>();

    for (final Object obj : allHistory) {
        if ((null != obj) && (obj instanceof Double) && !Double.isNaN((Double) obj)) {
            newList.add((Double) obj);
        }
    }
    return newList.toArray(new Double[newList.size()]);
}

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