Example usage for java.util Collection iterator

Introduction

In this page you can find the example usage for java.util Collection iterator.

Prototype

Iterator<E> iterator();

Source Link

Document

Returns an iterator over the elements in this collection.

Usage

From source file:com.esofthead.mycollab.vaadin.resources.StreamDownloadResourceUtil.java

public static String getDownloadFileName(Collection<Resource> lstRes) {
    if (CollectionUtils.isEmpty(lstRes)) {
        throw new UserInvalidInputException("No selected file to download");
    } else if (lstRes.size() == 1) {
        Resource resource = lstRes.iterator().next();
        return (resource instanceof Folder) ? resource + ".zip" : resource.getName();
    } else {/*w w  w .  j a  v  a 2  s  .  co m*/
        return "out.zip";
    }

}

From source file:ch.admin.suis.msghandler.common.MessageType.java

/**
 * Formats a collection of message types.
 *
 * @param types the collection of message types
 * @return A concatenated string of message types
 *//*from   ww w.j a v a 2s . c  o m*/
public static String collectionToString(Collection<MessageType> types) {
    final StringBuilder typeResult = new StringBuilder();
    if (null != types) {
        for (Iterator<MessageType> i = types.iterator(); i.hasNext();) {
            typeResult.append(i.next().toString());
            if (i.hasNext()) {
                typeResult.append(", ");
            }
        }
    }

    return typeResult.toString();
}

From source file:gaffer.rest.service.SimpleGraphConfigurationService.java

private static void keepPublicConcreteClasses(final Collection<Class> classes) {
    if (null != classes) {
        final Iterator<Class> itr = classes.iterator();
        while (itr.hasNext()) {
            final Class clazz = itr.next();
            if (null != clazz) {
                final int modifiers = clazz.getModifiers();
                if (Modifier.isAbstract(modifiers) || Modifier.isInterface(modifiers)
                        || Modifier.isPrivate(modifiers) || Modifier.isProtected(modifiers)) {
                    itr.remove();/*from  w w  w .  ja  v  a2s .  c  o m*/
                }
            }
        }
    }
}

From source file:apm.common.utils.Collections3.java

/**
 * ?Collectioncollectionnull./* www .  j  a  va2 s.  c  o  m*/
 */
public static <T> T getFirst(Collection<T> collection) {
    if (isEmpty(collection)) {
        return null;
    }

    return collection.iterator().next();
}

From source file:net.sourceforge.jcctray.utils.ObjectPersister.java

private static void saveHosts(Writer writer, Collection hosts) throws IOException {
    writer.write("   <hosts>\n");
    for (Iterator iterator = hosts.iterator(); iterator.hasNext();) {
        Host host = (Host) iterator.next();
        writer.write("      <host");
        writer.write(" cruiseClass=\"" + escape(host.getCruiseClass()) + "\"");
        writer.write(" hostName=\"" + escape(host.getHostName()) + "\"");
        writer.write(" hostString=\"" + escape(host.getHostString()) + "\"");
        if (!StringUtils.isEmptyOrNull(host.getUsername())) {
            writer.write(" username=\"" + escape(host.getUsername()) + "\"");
        }/*  www .j  ava2  s .  c  o  m*/
        if (!StringUtils.isEmptyOrNull(host.getPassword())) {
            writer.write(" password=\"" + escape(host.getPassword()) + "\"");
        }
        writer.write(">\n");
        saveProjects(writer, host.getConfiguredProjects());
        writer.write("      </host>\n");
    }
    writer.write("   </hosts>\n");
}

From source file:Main.java

/**
 * /*from   ww w. java 2 s  . co  m*/
 * @param collection
 * @return int[]
 */
public static int[] toIntArray(final Collection<Integer> collection) {
    final int[] array = new int[collection == null ? 0 : collection.size()];

    if (collection != null) {
        int i = 0;

        for (Iterator<Integer> iterator = collection.iterator(); iterator.hasNext();) {
            array[i++] = iterator.next().intValue();
        }
    }

    return array;
}

From source file:Main.java

/**
 * Convenience method to return a Collection as a delimited (e.g. CSV)
 * String. E.g. useful for toString() implementations.
 *
 * @param coll   Collection to display//  w  w w  . j  a v  a 2s.c o m
 * @param delim  delimiter to use (probably a ",")
 * @param prefix string to start each element with
 * @param suffix string to end each element with
 */
public static String tooDelimitedString(final Collection coll, final String delim, final String prefix,
        final String suffix) {
    if (coll == null) {
        return "";
    }

    final StringBuilder sb = new StringBuilder();
    Iterator it = coll.iterator();
    int i = 0;
    while (it.hasNext()) {
        if (i > 0) {
            sb.append(delim);
        }
        sb.append(prefix).append(it.next()).append(suffix);
        i++;
    }
    return sb.toString();
}

From source file:net.sourceforge.jcctray.utils.ObjectPersister.java

private static void saveProjects(Writer writer, Collection projects) throws IOException {
    writer.write("         <projects>\n");
    for (Iterator iterator2 = projects.iterator(); iterator2.hasNext();) {
        DashBoardProject project = (DashBoardProject) iterator2.next();
        writer.write("            <project");
        writer.write(" enabled=\"" + project.isEnabled() + "\"");
        writer.write(" name=\"" + project.getName() + "\"");
        writer.write("/>\n");
    }//from w  w  w  . j  a v a  2  s.  c om
    writer.write("         </projects>\n");
}

From source file:org.shept.util.BeanUtilsExtended.java

@SuppressWarnings({ "rawtypes", "unchecked" })
private static boolean isInstanceVisited(Collection coll, Object value) throws Exception {
    for (Iterator<?> it = coll.iterator(); it.hasNext();) {
        Object v = it.next();/*from  ww w.ja  v  a 2 s .c om*/
        if (v.equals(value)) {
            return true;
        }
    }
    // sometimes ConcurrentModificationExceptions here
    coll.add(value);
    return false;
}

From source file:net.sourceforge.fenixedu.applicationTier.Servico.coordinator.degreeCurricularPlanManagement.ReadCurriculumHistoryByCurricularCourseCodeAndExecutionYearName.java

@Atomic
public static InfoCurriculum run(Integer executionDegreeCode, String curricularCourseCode,
        String stringExecutionYear) throws FenixServiceException {
    check(RolePredicates.COORDINATOR_PREDICATE);
    InfoCurriculum infoCurriculum = null;

    if (curricularCourseCode == null) {
        throw new FenixServiceException("nullCurricularCourse");
    }//  w  w  w  . java2  s. c  om
    if (stringExecutionYear == null || stringExecutionYear.length() == 0) {
        throw new FenixServiceException("nullExecutionYearName");
    }
    CurricularCourse curricularCourse = (CurricularCourse) FenixFramework.getDomainObject(curricularCourseCode);
    if (curricularCourse == null) {
        throw new NonExistingServiceException("noCurricularCourse");
    }

    final ExecutionYear executionYear = ExecutionYear.readExecutionYearByName(stringExecutionYear);
    if (executionYear == null) {
        throw new NonExistingServiceException("noExecutionYear");
    }

    Curriculum curriculumExecutionYear = curricularCourse
            .findLatestCurriculumModifiedBefore(executionYear.getEndDate());
    if (curriculumExecutionYear != null) {
        List allCurricularCourseScopes = new ArrayList();
        List allExecutionCourses = new ArrayList();
        Collection executionPeriods = executionYear.getExecutionPeriodsSet();
        Iterator iterExecutionPeriods = executionPeriods.iterator();
        while (iterExecutionPeriods.hasNext()) {
            ExecutionSemester executionSemester = (ExecutionSemester) iterExecutionPeriods.next();
            Set<CurricularCourseScope> curricularCourseScopes = curricularCourse
                    .findCurricularCourseScopesIntersectingPeriod(executionSemester.getBeginDate(),
                            executionSemester.getEndDate());
            if (curricularCourseScopes != null) {
                List disjunctionCurricularCourseScopes = (List) CollectionUtils
                        .disjunction(allCurricularCourseScopes, curricularCourseScopes);
                List intersectionCurricularCourseScopes = (List) CollectionUtils
                        .intersection(allCurricularCourseScopes, curricularCourseScopes);

                allCurricularCourseScopes = (List) CollectionUtils.union(disjunctionCurricularCourseScopes,
                        intersectionCurricularCourseScopes);
            }
            List associatedExecutionCourses = new ArrayList();
            Collection<ExecutionCourse> executionCourses = curricularCourse.getAssociatedExecutionCoursesSet();
            for (ExecutionCourse executionCourse : executionCourses) {
                if (executionCourse.getExecutionPeriod().equals(executionSemester)) {
                    associatedExecutionCourses.add(executionCourse);
                }
            }

            if (associatedExecutionCourses != null) {
                allExecutionCourses.addAll(associatedExecutionCourses);
            }

        }

        infoCurriculum = createInfoCurriculum(curriculumExecutionYear, allCurricularCourseScopes,
                allExecutionCourses);
    }
    return infoCurriculum;
}