Example usage for java.util List isEmpty

Introduction

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

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this list contains no elements.

Usage

From source file:net.sourceforge.fenixedu.presentationTier.backBeans.coordinator.ListStudentThesis.java

private static List run(String degreeCurricularPlanID) throws FenixServiceException {

    DegreeCurricularPlan degreeCurricularPlan = FenixFramework.getDomainObject(degreeCurricularPlanID);

    List masterDegreeThesisDataVersions = degreeCurricularPlan.readActiveMasterDegreeThesisDataVersions();

    if (masterDegreeThesisDataVersions == null || masterDegreeThesisDataVersions.isEmpty()) {
        throw new NonExistingServiceException("error.exception.masterDegree.nonExistingMasterDegreeThesis");
    }//from w  w w  . ja v  a  2s. c o m

    CollectionUtils.transform(masterDegreeThesisDataVersions, new Transformer() {
        @Override
        public Object transform(Object arg0) {
            MasterDegreeThesisDataVersion masterDegreeThesisDataVersion = (MasterDegreeThesisDataVersion) arg0;
            return InfoMasterDegreeThesisDataVersionWithGuidersAndRespAndThesis
                    .newInfoFromDomain(masterDegreeThesisDataVersion);
        }
    });

    return masterDegreeThesisDataVersions;
}

From source file:Main.java

public static <T> List<List<T>> innerJoin(List<T> l1, List<T> l2, BiFunction<T, T, T> function) {
    if (l1 == null || l2 == null) {
        throw new NullPointerException("inner join arrays must not be null");
    }//from   w  w w .ja  va2  s.c o m

    if (l1.isEmpty() && l2.isEmpty()) {
        return Collections.emptyList();
    } else if (l1.isEmpty()) {
        return Collections.singletonList(l2);
    } else if (l2.isEmpty()) {
        return Collections.singletonList(l1);
    }

    List<List<T>> result = new ArrayList<>(l1.size() * l2.size());
    l1.stream().forEach(t1 -> {
        List<T> l = new ArrayList<>();
        l2.stream().forEach(t2 -> l.add(function.apply(t1, t2)));
        result.add(l);
    });
    return result;
}

From source file:com.clustercontrol.accesscontrol.factory.LoginUserSelector.java

/**
 * ??<BR>//from w  w  w  . j  a  va 2 s  .c  o  m
 * 
 * @return ?
 * @throws UserNotFound
 * @throws HinemosUnknown
 */
public static ArrayList<UserInfo> getUserInfoList() {
    m_log.debug("getting all user...");

    // ?
    List<UserInfo> users = QueryUtil.getAllShowUser();

    m_log.debug("successful in getting all user.");

    if (users == null || users.isEmpty()) {
        return new ArrayList<>();
    } else {
        return new ArrayList<UserInfo>(users);
    }
}

From source file:com.hybris.mobile.app.commerce.helper.ProductHelper.java

/**
 * Fill Spinner list with arraylist of variantMatrixElement
 *
 * @param context/*from   w  ww.  j  a  v a  2s  .  co m*/
 * @param spinner
 * @param variants
 * @param position
 */
public static void populateSpinner(Context context, Spinner spinner, List<VariantOption> variants,
        int position) {
    if (spinner != null && variants != null && !variants.isEmpty()) {
        VariantAdapter mVariantAdapter = new VariantAdapter(context, R.layout.item_product_variant, variants);
        spinner.setAdapter(mVariantAdapter);
        spinner.setPrompt(context.getString(R.string.choose_variant,
                ((List<VariantOptionQualifier>) variants.get(0).getVariantOptionQualifiers()).get(0)
                        .getName()));
        spinner.setVisibility(View.VISIBLE);
        spinner.setSelection(position < variants.size() ? position : 0);
    }
}

From source file:com.tealcube.minecraft.bukkit.mythicdrops.utils.SocketGemUtil.java

public static Material getRandomSocketGemMaterial() {
    List<Material> materialDatas = MythicDropsPlugin.getInstance().getSockettingSettings()
            .getSocketGemMaterials();//from  w  w  w .  java 2 s.com
    if (materialDatas == null || materialDatas.isEmpty()) {
        return null;
    }
    return materialDatas.get(RandomUtils.nextInt(materialDatas.size()));
}

From source file:jp.ikedam.jenkins.plugins.extensible_choice_parameter.utility.TextareaStringListUtility.java

/**
 * Returns a list of string parsed from a input of textarea.
 * /*from   w w w. jav a  2s .  co m*/
 * @param choiceListText the input of a textarea
 * @return a list of string.
 */
public static List<String> stringListFromTextarea(String choiceListText) {
    List<String> stringList = (choiceListText != null) ? Arrays.asList(choiceListText.split("\\r?\\n", -1))
            : new ArrayList<String>(0);
    if (!stringList.isEmpty() && StringUtils.isEmpty(stringList.get(stringList.size() - 1))) {
        // The last empty line will be ignored.
        // The list object returned from asList() does not support remove,
        // so use subList().
        stringList = stringList.subList(0, stringList.size() - 1);
    }

    return stringList;
}

From source file:grandroid.geo.Geocoder.java

public static String convertAddress(double lat, double lng) throws Exception {
    List<Address> adds = getFromLocation(lat, lng, 1);
    if (adds == null || adds.isEmpty()) {
        throw new Exception("no address can be found");
    } else {//from   www  .  ja  va  2  s. com
        Address add = adds.get(0);
        if (add.getFeatureName() == null) {
            return add.getAdminArea() + add.getLocality() + add.getAddressLine(0);
        } else {
            return add.getFeatureName();
        }
    }
}

From source file:com.doculibre.constellio.plugins.PluginFactory.java

private static <P extends ConstellioPlugin> P getPlugin(Class<P> pluginClass, boolean onlyDefault) {
    List<P> matches = getPlugins(pluginClass, onlyDefault);
    return !matches.isEmpty() ? matches.get(0) : null;
}

From source file:com.hybris.mobile.app.commerce.helper.ProductHelper.java

/**
 * Use variantValueCategory code to find the default variant value with the category code
 *
 * @return default variant position//from  w w  w.  ja v a2s  .  co  m
 */
public static int findVariantPosition(List<VariantOption> options, VariantOption selected) {
    int position = 0;
    if (options != null && !options.isEmpty() && selected != null) {
        for (VariantOption variantOption : options) {
            if (StringUtils.equals(variantOption.getCode(), selected.getCode())) {
                return position;
            }
            position++;
        }
    }
    return position;
}

From source file:Main.java

public static <T> List<T> innerJoin(List<List<T>> list, BiFunction<T, T, T> function) {
    if (list == null || function == null) {
        throw new NullPointerException("list or function must not be null");
    }// w ww  .j  a  v  a 2 s.com
    if (list.isEmpty()) {
        return Collections.emptyList();
    }
    if (list.size() == 1) {
        return list.get(0);
    }

    List<List<T>> result = innerJoin(list.get(0), list.get(1), function);
    if (list.size() == 2) {
        return merge(result);
    } else {
        for (int i = 2; i < list.size(); i++) {
            List<T> l1 = list.get(i);
            List<List<T>> temp = new ArrayList<>();
            result.stream().forEach(l -> temp.addAll(innerJoin(l, l1, function)));
            result = temp;
        }
        return merge(result);
    }
}