scala.Option.getOrElse()方法的使用及代码示例

x33g5p2x  于2022-01-25 转载在 其他  
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本文整理了Java中scala.Option.getOrElse()方法的一些代码示例，展示了Option.getOrElse()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Option.getOrElse()方法的具体详情如下：
包路径：scala.Option
类名称：Option
方法名：getOrElse

Option.getOrElse介绍

暂无

代码示例

代码示例来源：origin: apache/servicemix-bundles

@Nullable
  @Override
  public Object convert(Object source) {
    return source instanceof Option ? ((Option<?>) source).getOrElse(alternative) : source;
  }
}

代码示例来源：origin: com.davidbracewell/mango

@Override
public Optional<String> name() {
 try {
   return Optional.ofNullable(accumulatorV2.name().getOrElse(new AbstractFunction0<String>() {
    @Override
    public String apply() {
      return null;
    }
   }));
 } catch (IllegalAccessError e) {
   return Optional.empty();
 }
}

代码示例来源：origin: traneio/ndbc

private final io.trane.ndbc.DataSource<P, R> current() {
 return currentTransaction.apply().getOrElse(() -> underlying);
}

代码示例来源：origin: play/play-test

public static Result route(Application app, FakeRequest fakeRequest) {
 final scala.Option<play.api.mvc.Result> opt = play.api.test.Helpers.jRoute(app.getWrappedApplication(), fakeRequest.fake);
 final play.api.mvc.Result r = opt.getOrElse(null);
 if(r != null){
  return new Result() {
   public play.api.mvc.Result getWrappedResult(){
    return r;
   }
  };
 }
 return null;
}

代码示例来源：origin: apache/samza

retryBackoff.run(fetchMetadataOperation, onExceptionRetryOperation).getOrElse(fallbackOperation);
return result;

代码示例来源：origin: kframework/k

@Override
public void apply(KToken k) {
  sb.append("\\dv{");
  convert(k.sort(), false);
  sb.append("}(");
  if (module.sortAttributesFor().get(k.sort()).getOrElse(() -> Att.empty()).getOptional("hook").orElse("").equals("STRING.String")) {
    sb.append(k.s());
  } else {
    sb.append(StringUtil.enquoteKString(k.s()));
  }
  sb.append(")");
}

代码示例来源：origin: org.cogchar/org.cogchar.bundle.bind.mechio

public void fastCueAndPlayFromMediaHandle(MediaHandle<Animation> handle) {
    
    Animation anim = null;
    try{
      anim = handle.getMedia().getOrElse(null);
    }catch(Exception ex){}
    // TODO:  Get a proper performance set up for monitor + cancel, possibly based on the Media.Framed type.handle
    if(anim == null){
//            anim = new Animation();
//            Channel c = new Channel(100, "waist");
//            MotionPath mp = new MotionPath();
//            mp.addPoint(0, 0.5);
//            mp.addPoint(1500, 1.0);
//            mp.addPoint(3000, 0.5);
//            mp.addPoint(4500, 0.0);
//            mp.addPoint(6000, 0.5);
//            c.addPath(mp);
//            anim.addChannel(c);
      return;
    }
    FancyPerformance perf = null;
    launchFullAnimJobNow(anim, perf);
  }

代码示例来源：origin: play/play-test

public static <T> Result route(Application app, FakeRequest fakeRequest, byte[] body) {
 final play.api.mvc.Result r = play.api.test.Helpers.jRoute(app.getWrappedApplication(), fakeRequest.getWrappedRequest(), body).getOrElse(null);
 if(r != null){
  return new Result() {
   public play.api.mvc.Result getWrappedResult(){
    return r;
   }
  };
 }
 return null;
}

代码示例来源：origin: com.lightbend.akka.grpc/akka-grpc-play-testkit

/** Creates a GrpcClientSettings from the given HTTP/2 endpoint and ActorSystem. */
public static GrpcClientSettings grpcClientSettings(
  final ServerEndpoint http2Endpoint,
  final ActorSystem actorSystem
) {
 final ServerEndpoint.ClientSsl clientSsl = http2Endpoint.ssl().getOrElse(func(() -> {
  throw new IllegalArgumentException(
    "GrpcClientSettings requires a server endpoint with ssl, but non provided");
 }));
 return grpcClientSettings(http2Endpoint, clientSsl.sslContext(), actorSystem);
}

代码示例来源：origin: org.cogchar/org.cogchar.bundle.bind.robokind

public void fastCueAndPlayFromMediaHandle(MediaHandle<Animation> handle) {
    
    Animation anim = null;
    try{
      anim = handle.getMedia().getOrElse(null);
    }catch(Exception ex){}
    // TODO:  Get a proper performance set up for monitor + cancel, possibly based on the Media.Framed type.handle
    if(anim == null){
//            anim = new Animation();
//            Channel c = new Channel(100, "waist");
//            MotionPath mp = new MotionPath();
//            mp.addPoint(0, 0.5);
//            mp.addPoint(1500, 1.0);
//            mp.addPoint(3000, 0.5);
//            mp.addPoint(4500, 0.0);
//            mp.addPoint(6000, 0.5);
//            c.addPath(mp);
//            anim.addChannel(c);
      return;
    }
    FancyPerformance perf = null;
    launchFullAnimJobNow(anim, perf);
  }

代码示例来源：origin: kframework/k

@Override
  public void apply(KApply k) {
    String hook = module.attributesFor().get(k.klabel()).getOrElse(() -> Att.empty()).getOptional("hook").orElse("");
    if (hook.equals("SET.element")
        || hook.equals("LIST.element")
        || hook.equals("LIST.concat")
        || hook.equals("MAP.concat")
        || hook.equals("SET.concat")) {
      return;
    }
    if (hook.equals("MAP.element")) {
      apply(k.items().get(1));
      return;
    }
    super.apply(k);
  }
}.apply(term);

代码示例来源：origin: com.lightbend.play/play-grpc-testkit

/** Creates a GrpcClientSettings from the given HTTP/2 endpoint and ActorSystem. */
public static GrpcClientSettings grpcClientSettings(
  final ServerEndpoint http2Endpoint,
  final ActorSystem actorSystem
) {
 final ServerEndpoint.ClientSsl clientSsl = http2Endpoint.ssl().getOrElse(func(() -> {
  throw new IllegalArgumentException(
    "GrpcClientSettings requires a server endpoint with ssl, but non provided");
 }));
 return grpcClientSettings(http2Endpoint, clientSsl.sslContext(), actorSystem);
}

代码示例来源：origin: apache/samza

/**
  * Creates the {@link SamzaApplication} object from the task or application class name specified in {@code config}
  *
  * @param config the configuration of the application
  * @return the {@link SamzaApplication} object
  */
 public static SamzaApplication fromConfig(Config config) {
  String appClassName = new ApplicationConfig(config).getAppClass();
  if (StringUtils.isNotBlank(appClassName)) {
   // app.class is configured
   try {
    Class<SamzaApplication> appClass = (Class<SamzaApplication>) Class.forName(appClassName);
    if (StreamApplication.class.isAssignableFrom(appClass) || TaskApplication.class.isAssignableFrom(appClass)) {
     return appClass.newInstance();
    }
   } catch (IllegalAccessException | InstantiationException | ClassNotFoundException e) {
    throw new ConfigException(String.format("Loading app.class %s failed. The user application has to implement "
      + "StreamApplication or TaskApplication.", appClassName), e);
   }
  }
  // no app.class defined. It has to be a legacy application with task.class configuration
  Option<String> taskClassOption = new TaskConfig(config).getTaskClass();
  if (!taskClassOption.isDefined() || !StringUtils.isNotBlank(taskClassOption.getOrElse(null))) {
   // no task.class defined either. This is wrong.
   throw new ConfigException("Legacy task applications must set a non-empty task.class in configuration.");
  }
  return new LegacyTaskApplication(taskClassOption.get());
 }
}

代码示例来源：origin: org.apache.samza/samza-core_2.11

/**
  * Creates the {@link SamzaApplication} object from the task or application class name specified in {@code config}
  *
  * @param config the configuration of the application
  * @return the {@link SamzaApplication} object
  */
 public static SamzaApplication fromConfig(Config config) {
  String appClassName = new ApplicationConfig(config).getAppClass();
  if (StringUtils.isNotBlank(appClassName)) {
   // app.class is configured
   try {
    Class<SamzaApplication> appClass = (Class<SamzaApplication>) Class.forName(appClassName);
    if (StreamApplication.class.isAssignableFrom(appClass) || TaskApplication.class.isAssignableFrom(appClass)) {
     return appClass.newInstance();
    }
   } catch (IllegalAccessException | InstantiationException | ClassNotFoundException e) {
    throw new ConfigException(String.format("Loading app.class %s failed. The user application has to implement "
      + "StreamApplication or TaskApplication.", appClassName), e);
   }
  }
  // no app.class defined. It has to be a legacy application with task.class configuration
  Option<String> taskClassOption = new TaskConfig(config).getTaskClass();
  if (!taskClassOption.isDefined() || !StringUtils.isNotBlank(taskClassOption.getOrElse(null))) {
   // no task.class defined either. This is wrong.
   throw new ConfigException("Legacy task applications must set a non-empty task.class in configuration.");
  }
  return new LegacyTaskApplication(taskClassOption.get());
 }
}

代码示例来源：origin: org.apache.samza/samza-core

/**
  * Creates the {@link SamzaApplication} object from the task or application class name specified in {@code config}
  *
  * @param config the configuration of the application
  * @return the {@link SamzaApplication} object
  */
 public static SamzaApplication fromConfig(Config config) {
  String appClassName = new ApplicationConfig(config).getAppClass();
  if (StringUtils.isNotBlank(appClassName)) {
   // app.class is configured
   try {
    Class<SamzaApplication> appClass = (Class<SamzaApplication>) Class.forName(appClassName);
    if (StreamApplication.class.isAssignableFrom(appClass) || TaskApplication.class.isAssignableFrom(appClass)) {
     return appClass.newInstance();
    }
   } catch (IllegalAccessException | InstantiationException | ClassNotFoundException e) {
    throw new ConfigException(String.format("Loading app.class %s failed. The user application has to implement "
      + "StreamApplication or TaskApplication.", appClassName), e);
   }
  }
  // no app.class defined. It has to be a legacy application with task.class configuration
  Option<String> taskClassOption = new TaskConfig(config).getTaskClass();
  if (!taskClassOption.isDefined() || !StringUtils.isNotBlank(taskClassOption.getOrElse(null))) {
   // no task.class defined either. This is wrong.
   throw new ConfigException("Legacy task applications must set a non-empty task.class in configuration.");
  }
  return new LegacyTaskApplication(taskClassOption.get());
 }
}

代码示例来源：origin: org.apache.samza/samza-core_2.12

/**
  * Creates the {@link SamzaApplication} object from the task or application class name specified in {@code config}
  *
  * @param config the configuration of the application
  * @return the {@link SamzaApplication} object
  */
 public static SamzaApplication fromConfig(Config config) {
  String appClassName = new ApplicationConfig(config).getAppClass();
  if (StringUtils.isNotBlank(appClassName)) {
   // app.class is configured
   try {
    Class<SamzaApplication> appClass = (Class<SamzaApplication>) Class.forName(appClassName);
    if (StreamApplication.class.isAssignableFrom(appClass) || TaskApplication.class.isAssignableFrom(appClass)) {
     return appClass.newInstance();
    }
   } catch (IllegalAccessException | InstantiationException | ClassNotFoundException e) {
    throw new ConfigException(String.format("Loading app.class %s failed. The user application has to implement "
      + "StreamApplication or TaskApplication.", appClassName), e);
   }
  }
  // no app.class defined. It has to be a legacy application with task.class configuration
  Option<String> taskClassOption = new TaskConfig(config).getTaskClass();
  if (!taskClassOption.isDefined() || !StringUtils.isNotBlank(taskClassOption.getOrElse(null))) {
   // no task.class defined either. This is wrong.
   throw new ConfigException("Legacy task applications must set a non-empty task.class in configuration.");
  }
  return new LegacyTaskApplication(taskClassOption.get());
 }
}

代码示例来源：origin: org.apache.samza/samza-core_2.10

/**
  * Creates the {@link SamzaApplication} object from the task or application class name specified in {@code config}
  *
  * @param config the configuration of the application
  * @return the {@link SamzaApplication} object
  */
 public static SamzaApplication fromConfig(Config config) {
  String appClassName = new ApplicationConfig(config).getAppClass();
  if (StringUtils.isNotBlank(appClassName)) {
   // app.class is configured
   try {
    Class<SamzaApplication> appClass = (Class<SamzaApplication>) Class.forName(appClassName);
    if (StreamApplication.class.isAssignableFrom(appClass) || TaskApplication.class.isAssignableFrom(appClass)) {
     return appClass.newInstance();
    }
   } catch (IllegalAccessException | InstantiationException | ClassNotFoundException e) {
    throw new ConfigException(String.format("Loading app.class %s failed. The user application has to implement "
      + "StreamApplication or TaskApplication.", appClassName), e);
   }
  }
  // no app.class defined. It has to be a legacy application with task.class configuration
  Option<String> taskClassOption = new TaskConfig(config).getTaskClass();
  if (!taskClassOption.isDefined() || !StringUtils.isNotBlank(taskClassOption.getOrElse(null))) {
   // no task.class defined either. This is wrong.
   throw new ConfigException("Legacy task applications must set a non-empty task.class in configuration.");
  }
  return new LegacyTaskApplication(taskClassOption.get());
 }
}

代码示例来源：origin: com.criteo.java/garmadon-frameworks-spark

@Override
public void onApplicationStart(SparkListenerApplicationStart applicationStart) {
  try {
    header = header.cloneAndOverride(Header.newBuilder()
        .withApplicationID(applicationStart.appId().getOrElse(emptyStringScala))
        .withAttemptID(applicationStart.appAttemptId().getOrElse(emptyStringScala))
        .withApplicationName(applicationStart.appName())
        .build())
        .toSerializeHeader();
  } catch (Throwable t) {
    LOGGER.warn("Failed to send event for onApplicationStart", t);
  }
}

代码示例来源：origin: com.criteo.java/garmadon-frameworks-spark

@Override
public void onStageSubmitted(SparkListenerStageSubmitted stageSubmitted) {
  try {
    long submissionTime = stageSubmitted.stageInfo().submissionTime().getOrElse(currentTimeLongScala);
    String name = stageSubmitted.stageInfo().name();
    String stageId = String.valueOf(stageSubmitted.stageInfo().stageId());
    String attemptId = String.valueOf(stageSubmitted.stageInfo().attemptId());
    int numTasks = stageSubmitted.stageInfo().numTasks();
    sendStageStateEvent(submissionTime, State.BEGIN, name, stageId, attemptId, numTasks);
  } catch (Throwable t) {
    LOGGER.warn("Failed to send event for onStageSubmitted", t);
  }
}

代码示例来源：origin: kframework/k

String hookAtt = mod.sortAttributesFor().get(expectedSort).getOrElse(() -> Att()).getOptional("hook").orElse("");
if (hookAtt.equals("MAP.Map") || hookAtt.equals("SET.Set") || hookAtt.equals("LIST.List")) {
  for (KLabel collectionLabel : collectionFor.keySet()) {

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