Example usage for java.util Collection isEmpty

List of usage examples for java.util Collection isEmpty

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Introduction

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

Prototype

boolean isEmpty();

Source Link

Document

Returns true if this collection contains no elements.

Usage

From source file:com.opengamma.util.test.DbTest.java

private static boolean isScriptPublished() {
    String zipPath = getZipPath();
    if (zipPath == null) {
        throw new OpenGammaRuntimeException("missing test.sqlZip.path property in test properties file");
    }//w w  w  .j a  v  a 2  s  .  c o  m
    File zipScriptPath = new File(DbTool.getWorkingDirectory(), zipPath);
    boolean result = false;
    if (zipScriptPath.exists()) {
        @SuppressWarnings("rawtypes")
        Collection zipfiles = FileUtils.listFiles(zipScriptPath, new String[] { "zip" }, false);
        result = !zipfiles.isEmpty();
    }
    return result;
}

From source file:com.silverpeas.util.MapUtil.java

/**
 * Centralizes the map adding that containing list collections
 * @param <K>/* w  w  w  . ja va 2  s  . com*/
 * @param <V>
 * @param setClass
 * @param map
 * @param key
 * @param values
 * @return
 */
public static <K, V> Set<V> putAddAllSet(final Class<? extends Set> setClass, Map<K, Set<V>> map, final K key,
        final Collection<V> values) {
    Set<V> result = null;

    if (values != null && !values.isEmpty()) {
        for (V value : values) {
            result = putAddSet(setClass, map, key, value);
        }
    } else {
        result = putAddSet(setClass, map, key, null);
    }

    // map result (never null)
    return result;
}

From source file:com.silverpeas.util.MapUtil.java

/**
 * Centralizes the map adding that containing list collections
 * @param <K>/*w w w . j  a va 2 s  . co  m*/
 * @param <V>
 * @param listClass
 * @param map
 * @param key
 * @param values
 * @return
 */
public static <K, V> List<V> putAddAllList(final Class<? extends List> listClass, Map<K, List<V>> map,
        final K key, final Collection<V> values) {
    List<V> result = null;

    if (values != null && !values.isEmpty()) {
        for (V value : values) {
            result = putAddList(listClass, map, key, value);
        }
    } else {
        result = putAddList(listClass, map, key, null);
    }

    // map result (never null)
    return result;
}

From source file:com.jalios.ejpt.sync.utils.IOUtil.java

public static File findPluginXMLFile(File directory) throws FileNotFoundException {
    Collection<File> files = FileUtils.listFiles(directory,
            FileFilterUtils.nameFileFilter(ParseConstants.PLUGIN_XML), TrueFileFilter.INSTANCE);

    if (!files.isEmpty() && files.size() == 1) {
        return files.iterator().next();
    }//from   w  ww  .  j a va  2  s .co  m

    throw new FileNotFoundException("'plugin.xml' not found in " + directory);

}

From source file:com.silverpeas.util.MapUtil.java

/**
 * Centralizes the map adding that containing collections
 *
 * @param <K>/*  w  w w  .  j a  va  2  s  . c om*/
 * @param <V>
 * @param map
 * @param key
 * @param values
 * @return
 */
public static <K, V> Collection<V> putAddAll(final Class<? extends Collection> collectionClass,
        Map<K, Collection<V>> map, final K key, final Collection<V> values) {
    Collection<V> result = null;

    if (values != null && !values.isEmpty()) {
        for (V value : values) {
            result = putAdd(collectionClass, map, key, value);
        }
    } else {
        result = putAdd(collectionClass, map, key, null);
    }

    // map result (never null)
    return result;
}

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

private static void initPluginManager() {
    if (pm == null) {
        pm = PluginManagerFactory.createPluginManager();
        File classesDir = ClasspathUtils.getClassesDir();

        pm.addPluginsFrom(classesDir.toURI());

        File pluginsDir = getPluginsDir();
        File[] pluginDirs = pluginsDir.listFiles(new FileFilter() {
            @Override//from  w  ww  .  j  av  a2s. com
            public boolean accept(File pathname) {
                boolean accept;
                if (pathname.isFile()) {
                    accept = false;
                } else if (DefaultConstellioPlugin.NAME.equals(pathname)) {
                    accept = true;
                } else {
                    List<String> availablePluginNames = ConstellioSpringUtils.getAvailablePluginNames();
                    accept = availablePluginNames.contains(pathname.getName());
                }
                return accept;
            }
        });
        if (pluginDirs == null) {
            return;
        }
        for (File pluginDir : pluginDirs) {
            // Plugin root dir jars
            Collection<File> pluginJarFiles = FileUtils.listFiles(pluginDir, new String[] { "jar" }, false);
            // Accept only one root dir jar
            File pluginJarFile = pluginJarFiles.isEmpty() ? null : pluginJarFiles.iterator().next();
            if (pluginJarFile != null) {
                URI pluginJarFileURI = pluginJarFile.toURI();
                pm.addPluginsFrom(pluginJarFileURI);

                PluginManagerImpl pmImpl = (PluginManagerImpl) pm;
                ClassPathManager classPathManager = pmImpl.getClassPathManager();
                ClassLoader classLoader = ClassPathManagerUtils.getClassLoader(classPathManager, pluginJarFile);
                classLoaders.add(classLoader);

                File pluginLibDir = new File(pluginDir, "lib");
                if (pluginLibDir.exists() && pluginLibDir.isDirectory()) {
                    Collection<File> pluginDependencies = FileUtils.listFiles(pluginLibDir,
                            new String[] { "jar" }, false);
                    ClassPathManagerUtils.addJarDependencies(classPathManager, pluginJarFile,
                            pluginDependencies);
                }
            }
        }

        File webInfDir = ClasspathUtils.getWebinfDir();
        File libDir = new File(webInfDir, "lib");
        File[] contellioJarFiles = libDir.listFiles(new FileFilter() {
            @Override
            public boolean accept(File pathname) {
                boolean accept;
                if (pathname.isDirectory()) {
                    accept = false;
                } else {
                    List<String> availablePluginNames = ConstellioSpringUtils.getAvailablePluginNames();
                    String jarNameWoutExtension = FilenameUtils.removeExtension(pathname.getName());
                    accept = availablePluginNames.contains(jarNameWoutExtension);
                }
                return accept;
            }
        });
        for (File constellioJarFile : contellioJarFiles) {
            URI constellioJarFileURI = constellioJarFile.toURI();
            pm.addPluginsFrom(constellioJarFileURI);
        }
    }
}

From source file:de.iteratec.iteraplan.common.GeneralHelper.java

/**
 * Returns a String made from the concatenation of names of the given Collection of Building Block Types,
 * separated by the standard {@link Constants#BUILDINGBLOCKSEP}.
 * @param bbts//  www  .j  a  v a  2s  . c o m
 *          Collection of Building Block Types
 * @return Concatenated names of the Building Block Types
 */
public static String makeConcatenatedNameStringForBbtCollection(Collection<BuildingBlockType> bbts) {
    if (bbts == null || bbts.isEmpty()) {
        return " ";
    }

    return Joiner.on(Constants.BUILDINGBLOCKSEP)
            .join(Iterables.transform(bbts, new BBTLocalizedNameFunction()));
}

From source file:at.ac.uniklu.mobile.sportal.util.Utils.java

public static String getCSV(Collection<String> collection, String separator) {
    if (collection == null || collection.isEmpty()) {
        return null;
    }//from w  w w.  j a  v  a  2  s.co m
    StringBuffer sb = new StringBuffer();
    for (String s : collection) {
        sb.append(separator).append(s);
    }
    return sb.toString();
}

From source file:de.iteratec.iteraplan.common.GeneralHelper.java

/**
 * Returns a set of integers containing the IDs of the given collection of {@link IdEntity}s.
 * //from w  w w . j a v a2 s  .c om
 * @param col 
 *    A set of {@link IdEntity}s.
 * 
 * @return 
 *    A set of integers containing the IDs of the given collection. If the collection is 
 *    {@code null} or empty, an empty set is returned.
 */
public static Set<Integer> createIdSetFromIdEntities(Collection<? extends IdEntity> col) {
    if (col == null || col.isEmpty()) {
        return Sets.newHashSet();
    }

    EntityToIdFunction<IdEntity, Integer> entityToIdFunction = new EntityToIdFunction<IdEntity, Integer>();
    Iterable<Integer> ids = Iterables.transform(col, entityToIdFunction);

    return Sets.newHashSet(ids);
}

From source file:de.iteratec.iteraplan.common.GeneralHelper.java

/**
 * Returns a String made from the concatenation of names of the given Collection of Building Blocks,
 * separated by the standard {@link Constants#BUILDINGBLOCKSEP}.
 * @param bbs//from  w ww .jav a 2 s. co m
 *          Collection of Building Blocks
 * @return Concatenated names of the Building Blocks
 */
public static String makeConcatenatedNameStringForBbCollection(Collection<? extends BuildingBlock> bbs) {
    if (bbs == null || bbs.isEmpty()) {
        return " ";
    }

    Function<BuildingBlock, String> toNameFuntion = new Function<BuildingBlock, String>() {
        public String apply(BuildingBlock bb) {
            return bb.getNonHierarchicalName();
        }
    };
    return Joiner.on(Constants.BUILDINGBLOCKSEP).join(Iterables.transform(bbs, toNameFuntion));
}