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

Introduction

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

Prototype

public abstract T get();

Source Link

Document

Returns the contained instance, which must be present.

Usage

From source file:io.mesosphere.mesos.frameworks.cassandra.scheduler.util.Env.java

@NotNull
public static String get(@NotNull final String key) {
    final Optional<String> opt = option(key);
    if (opt.isPresent()) {
        return opt.get();
    } else {//  ww w  . j av a  2  s .  c  o  m
        throw new IllegalStateException(String.format("Environment variable %s is not defined", key));
    }
}

From source file:com.facebook.buck.util.Optionals.java

public static <T> void addIfPresent(Optional<T> optional, ImmutableCollection.Builder<T> collection) {
    if (optional.isPresent()) {
        collection.add(optional.get());
    }/*  w w w  . j a  v  a2 s  .  c om*/
}

From source file:info.rynkowski.hamsterclient.ui.utils.TimeConverter.java

public static @NonNull String toString(@NonNull Optional<Calendar> calendar, @NonNull String format) {
    if (calendar.isPresent()) {
        return toString(calendar.get(), format);
    }//  www . jav  a 2s.c o  m
    return "";
}

From source file:org.igov.service.business.object.ObjectPlaceService.java

/**
 * This method allows to swap two entities by Primary Key (PK).
 *
 * @param entity          - entity with new parameters
 * @param persistedEntity - persisted entity with registered PK in DB
 * @param dao             - type-specific dao implementation
 **//*from ww  w .j a v a  2  s  . com*/
@SuppressWarnings("unchecked")
public static <T extends AbstractEntity> boolean swap(T entity, Optional<T> persistedEntity, EntityDao dao) {
    if (persistedEntity.isPresent()) {
        entity.setId(persistedEntity.get().getId());
        dao.saveOrUpdate(entity);
        return true;
    }
    return false;
}

From source file:org.opendaylight.yangtools.yang.data.api.schema.tree.spi.AbstractContainerNode.java

static TreeNode getChildFromData(final NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>> data,
        final PathArgument childId, final Version version) {
    final Optional<NormalizedNode<?, ?>> child = data.getChild(childId);
    return child.isPresent() ? TreeNodeFactory.createTreeNode(child.get(), version) : null;
}

From source file:org.raml.api.RamlTypes.java

public static RamlType fromType(Type type) {
    Optional<ScalarType> scalarTypeOptional = ScalarType.fromType(type);

    if (scalarTypeOptional.isPresent()) {
        return scalarTypeOptional.get();
    }/*from  w  w  w.j a v a 2 s  .c  om*/

    throw new RuntimeException(format("unknown type: %s", type));
}

From source file:com.facebook.buck.util.Optionals.java

public static <K, T> void putIfPresent(Optional<T> optional, K key, ImmutableMap.Builder<K, T> collection) {
    if (optional.isPresent()) {
        collection.put(key, optional.get());
    }/*from ww w  . ja  va  2s  .c  o m*/
}

From source file:org.apache.gobblin.util.JvmUtils.java

/**
 * Formats the specified jvm arguments such that any tokens are replaced with concrete values;
 * @param jvmArguments//from   w w  w  .  j  a va  2  s .  c o  m
 * @return The formatted jvm arguments.
 */
public static String formatJvmArguments(Optional<String> jvmArguments) {
    if (jvmArguments.isPresent()) {
        return PORT_UTILS.replacePortTokens(jvmArguments.get());
    }
    return StringUtils.EMPTY;
}

From source file:org.fabrician.enabler.util.BuildCmdOptions.java

public static String buildAll(RuntimeContext rtc) {
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < rtc.getVariableCount(); i++) {
        RuntimeContextVariable var = rtc.getVariable(i);
        Optional<String> option = build(var);
        if (option.isPresent()) {
            sb.append(option.get());
        }/*from   ww w. j a  v  a 2 s  . co  m*/
    }
    return sb.toString();
}

From source file:org.mayocat.image.ImageDataLoader.java

private static <T> Function<Optional<T>, T> extract() {
    return new Function<Optional<T>, T>() {
        public T apply(Optional<T> optional) {
            return optional.get();
        }//ww  w .j a  va  2s. c  o m
    };
}