Example usage for com.google.common.base Optional of

Introduction

In this page you can find the example usage for com.google.common.base Optional of.

Prototype

public static <T> Optional<T> of(T reference)

Source Link

Document

Returns an Optional instance containing the given non-null reference.

Usage

From source file:org.deephacks.confit.spi.CacheManager.java

/**
 * Lookup the most suitable CacheManager available.
 *
 * @return CacheManager./*  ww w .jav  a 2 s .  co m*/
 */
public static Optional<CacheManager> lookup() {
    CacheManager manager = lookup.lookup(CacheManager.class);
    if (manager != null) {
        return Optional.of(manager);
    } else {
        return Optional.absent();
    }
}

From source file:com.kegare.friendlymobs.util.Version.java

private static void initialize() {
    CURRENT = Optional.of(Strings.nullToEmpty(FriendlyMobs.metadata.version));
    LATEST = Optional.fromNullable(CURRENT.orNull());

    File file = FriendlyUtils.getModContainer().getSource();

    if (file != null && file.exists()) {
        if (file.isFile()) {
            if (StringUtils.endsWithIgnoreCase(FilenameUtils.getBaseName(file.getName()), "dev")) {
                DEV_DEBUG = true;/*from w ww .  ja v  a2s  .  c om*/
            }
        } else {
            DEV_DEBUG = true;
        }
    } else if (!FMLForgePlugin.RUNTIME_DEOBF) {
        DEV_DEBUG = true;
    }

    if (StringUtils.endsWithIgnoreCase(getCurrent(), "dev")) {
        DEV_DEBUG = true;
    } else if (DEV_DEBUG) {
        FriendlyMobs.metadata.version += "-dev";
    }
}

From source file:li.klass.fhem.domain.MAXMode.java

public static Optional<MAXMode> modeFor(String value) {
    if (NumberUtil.isDecimalNumber(value)) {
        int mode = ValueExtractUtil.extractLeadingInt(value);
        switch (mode) {
        case 0://from   w  ww  . j  av a2  s . co  m
            return Optional.of(MAXMode.AUTO);
        case 1:
            return Optional.of(MAXMode.MANUAL);
        case 2:
            return Optional.of(MAXMode.TEMPORARY);
        case 3:
            return Optional.of(MAXMode.BOOST);
        default:
            throw new IllegalArgumentException("don't know how to handle heating mode " + mode);
        }
    } else {
        try {
            return Optional.of(MAXMode.valueOf(value.toUpperCase(Locale.getDefault())));
        } catch (Exception e) {
            Log.e(MAXMode.class.getName(), "cannot set heating mode from value " + value, e);
            return Optional.absent();
        }
    }
}

From source file:it.kytech.bowwarfare.utils.LogHelper.java

public static Optional<LogHelper> getInstance() {
    return (instance == null) ? Optional.<LogHelper>absent() : Optional.of(instance);
}

From source file:org.geogit.api.hooks.Hookables.java

/**
 * Returns the filename to be used for a script corresponding to the hook for a given GeoGit
 * operation. Returns {@link Optional.absent} if the specified operation does not allows hooks
 * /* w ww .  jav a  2  s .  c o m*/
 * @param class the operation
 * @return the string to be used as filename for storing the script files for the corresponding
 *         hook
 */
public static Optional<String> getFilename(Class<? extends AbstractGeoGitOp> clazz) {
    Hookable annotation = clazz.getAnnotation(Hookable.class);
    if (annotation != null) {
        return Optional.of(annotation.name());
    } else {
        return Optional.absent();
    }
}

From source file:org.eclipse.buildship.ui.view.task.FaultyProjectNode.java

public FaultyProjectNode(IProject project) {
    super(Optional.of(project));
}

From source file:com.kegare.caveworld.util.Version.java

private static void initialize() {
    CURRENT = Optional.of(Strings.nullToEmpty(Caveworld.metadata.version));
    LATEST = Optional.fromNullable(CURRENT.orNull());

    ModContainer mod = CaveUtils.getModContainer();
    File file = mod == null ? null : mod.getSource();

    if (file != null && file.exists()) {
        if (file.isFile()) {
            String name = FilenameUtils.getBaseName(file.getName());

            if (StringUtils.endsWithIgnoreCase(name, "dev")) {
                DEV_DEBUG = true;/*from w w  w. ja va  2  s. com*/
            }
        } else if (file.isDirectory()) {
            DEV_DEBUG = true;
        }
    } else if (!FMLForgePlugin.RUNTIME_DEOBF) {
        DEV_DEBUG = true;
    }

    if (Caveworld.metadata.version.endsWith("dev")) {
        DEV_DEBUG = true;
    } else if (DEV_DEBUG) {
        Caveworld.metadata.version += "-dev";
    }
}

From source file:org.apache.james.mailbox.model.MailboxAnnotation.java

public static MailboxAnnotation newInstance(MailboxAnnotationKey key, String value) {
    return new MailboxAnnotation(key, Optional.of(value));
}

From source file:ca.loganspeck.cortex.ViewingRule.java

public static Optional<ViewingRule> fromString(String name) {
    ViewingRule viewingRule = null;//from ww w  .ja  v a  2 s.c o  m

    for (ViewingRule rstr : values()) {
        if (rstr.toString().equalsIgnoreCase(name)) {
            viewingRule = rstr;
            break;
        }
    }

    return Optional.of(viewingRule);
}

From source file:eu.europa.ec.grow.espd.domain.enums.criteria.CriteriaList.java

public static Optional<CcvCriterion> findById(String uuid) {
    if (CRITERIA.get(uuid) != null) {
        return Optional.of(CRITERIA.get(uuid));
    }//  w  w  w  .  ja  va  2s.  co  m
    return Optional.absent();
}