Class List Method List File List

# Class: Vertx::Vertx

Inherits:
  Object
  - Object
  - Vertx::Vertx
  show all
Includes:
  Measured
Defined in:
  /Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb

## Overview

The entry point into the Vert.x Core API.

You use an instance of this class for functionality including:

- Creating TCP clients and servers
- Creating HTTP clients and servers
- Creating DNS clients
- Creating Datagram sockets
- Setting and cancelling periodic and one-shot timers
- Getting a reference to the event bus API
- Getting a reference to the file system API
- Getting a reference to the shared data API
- Deploying and undeploying verticles

Most functionality in Vert.x core is fairly low level.

To create an instance of this class you can use the static factory methods: #vertx, #vertx and #clustered_vertx.

Please see the user manual for more detailed usage information.

## Constant Summary

@@j_api_type =

      Object.new

## Class Method Summary (collapse)

- + (Boolean) accept?(obj)
- + (void) clustered_vertx(options = nil) { ... }
  Creates a clustered instance using the specified options.
- + (::Vertx::Context) current_context
  Gets the current context.
- + (Object) j_api_type
- + (Object) j_class
- + (Object) unwrap(obj)
- + (::Vertx::Vertx) vertx(options = nil)
  Creates a non clustered instance using the specified options.
- + (Object) wrap(obj)

## Instance Method Summary (collapse)

- - (true, false) cancel_timer(id = nil)
  Cancels the timer with the specified id.
- - (void) close { ... }
  Like #close but the completionHandler will be called when the close is complete.
- - (true, false) clustered?
  Is this Vert.x instance clustered?.
- - (::Vertx::DatagramSocket) create_datagram_socket(options = nil)
  Create a datagram socket using the specified options.
- - (::Vertx::DnsClient) create_dns_client(port = nil, host = nil)
  Create a DNS client to connect to a DNS server at the specified host and port.
- - (::Vertx::HttpClient) create_http_client(options = nil)
  Create a HTTP/HTTPS client using the specified options.
- - (::Vertx::HttpServer) create_http_server(options = nil)
  Create an HTTP/HTTPS server using the specified options.
- - (::Vertx::NetClient) create_net_client(options = nil)
  Create a TCP/SSL client using the specified options.
- - (::Vertx::NetServer) create_net_server(options = nil)
  Create a TCP/SSL server using the specified options.
- - (::Vertx::WorkerExecutor) create_shared_worker_executor(name = nil, poolSize = nil, maxExecuteTime = nil)
  Create a named worker executor, the executor should be closed when it's not needed anymore to release resources.
- - (void) deploy_verticle(name = nil, options = nil) { ... }
  Like #deploy_verticle but Hash are provided to configure the deployment.
- - (Set<String>) deployment_i_ds
  Return a Set of deployment IDs for the currently deployed deploymentIDs.
- - (::Vertx::EventBus) event_bus
  Get the event bus object.
- - (self) exception_handler { ... }
  Set a default exception handler for Context, set on at creation.
- - (void) execute_blocking(blockingCodeHandler = nil, ordered = nil) { ... }
  Safely execute some blocking code.
- - (::Vertx::FileSystem) file_system
  Get the filesystem object.
- - (::Vertx::Context) get_or_create_context
  Gets the current context, or creates one if there isn't one.
- - (true, false) metrics_enabled?
  Whether the metrics are enabled for this measured object.
- - (::Vertx::TimeoutStream) periodic_stream(delay = nil)
  Returns a periodic timer as a read stream.
- - (void) run_on_context { ... }
  Puts the handler on the event queue for the current context so it will be run asynchronously ASAP after all preceeding events have been handled.
- - (Fixnum) set_periodic(delay = nil) { ... }
  Set a periodic timer to fire every delay milliseconds, at which point handler will be called with the id of the timer.
- - (Fixnum) set_timer(delay = nil) { ... }
  Set a one-shot timer to fire after delay milliseconds, at which point handler will be called with the id of the timer.
- - (::Vertx::SharedData) shared_data
  Get the shared data object.
- - (::Vertx::TimeoutStream) timer_stream(delay = nil)
  Returns a one-shot timer as a read stream.
- - (void) undeploy(deploymentID = nil) { ... }
  Like #undeploy(String) but the completionHandler will be notified when the undeployment is complete.

## Class Method Details

### + (`Boolean`) accept?(obj)

Returns:

- (`Boolean`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 52

    def @@j_api_type.accept?(obj)
      obj.class == Vertx
    end

### + (`void`) clustered_vertx(options = nil) { ... }

This method returns an undefined value.

Creates a clustered instance using the specified options.

The instance is created asynchronously and the resultHandler is called with the result when it is ready.

Parameters:

- options (`Hash`) (defaults to: `nil`) —
  the options to use

Yields:

- the result handler that will receive the result

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 92

    def self.clustered_vertx(options=nil)
      if options.class == Hash && block_given?
        return Java::IoVertxCore::Vertx.java_method(:clusteredVertx, [Java::IoVertxCore::VertxOptions.java_class,Java::IoVertxCore::Handler.java_class]).call(Java::IoVertxCore::VertxOptions.new(::Vertx::Util::Utils.to_json_object(options)),(Proc.new { |ar| yield(ar.failed ? ar.cause : nil, ar.succeeded ? ::Vertx::Util::Utils.safe_create(ar.result,::Vertx::Vertx) : nil) }))
      end
      raise ArgumentError, "Invalid arguments when calling clustered_vertx(#{options})"
    end

### + (`::Vertx::Context`) current_context

Gets the current context

Returns:

- (`::Vertx::Context`) —
  The current context or null if no current context

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 100

    def self.current_context
      if !block_given?
        return ::Vertx::Util::Utils.safe_create(Java::IoVertxCore::Vertx.java_method(:currentContext, []).call(),::Vertx::Context)
      end
      raise ArgumentError, "Invalid arguments when calling current_context()"
    end

### + (`Object`) j_api_type

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 61

    def self.j_api_type
      @@j_api_type
    end

### + (`Object`) j_class

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 64

    def self.j_class
      Java::IoVertxCore::Vertx.java_class
    end

### + (`Object`) unwrap(obj)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 58

    def @@j_api_type.unwrap(obj)
      obj.j_del
    end

### + (`::Vertx::Vertx`) vertx(options = nil)

Creates a non clustered instance using the specified options

Parameters:

- options (`Hash`) (defaults to: `nil`) —
  the options to use

Returns:

- (`::Vertx::Vertx`) —
  the instance

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 78

    def self.vertx(options=nil)
      if !block_given? && options == nil
        return ::Vertx::Util::Utils.safe_create(Java::IoVertxCore::Vertx.java_method(:vertx, []).call(),::Vertx::Vertx)
      elsif options.class == Hash && !block_given?
        return ::Vertx::Util::Utils.safe_create(Java::IoVertxCore::Vertx.java_method(:vertx, [Java::IoVertxCore::VertxOptions.java_class]).call(Java::IoVertxCore::VertxOptions.new(::Vertx::Util::Utils.to_json_object(options))),::Vertx::Vertx)
      end
      raise ArgumentError, "Invalid arguments when calling vertx(#{options})"
    end

### + (`Object`) wrap(obj)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 55

    def @@j_api_type.wrap(obj)
      Vertx.new(obj)
    end

## Instance Method Details

### - (`true`, `false`) cancel_timer(id = nil)

Cancels the timer with the specified `id`.

Parameters:

- id (`Fixnum`) (defaults to: `nil`) —
  The id of the timer to cancel

Returns:

- (`true`, `false`) —
  true if the timer was successfully cancelled, or false if the timer does not exist.

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 257

    def cancel_timer(id=nil)
      if id.class == Fixnum && !block_given?
        return @j_del.java_method(:cancelTimer, [Java::long.java_class]).call(id)
      end
      raise ArgumentError, "Invalid arguments when calling cancel_timer(#{id})"
    end

### - (`void`) close { ... }

This method returns an undefined value.

Like #close but the completionHandler will be called when the close is complete

Yields:

- The handler will be notified when the close is complete.

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 276

    def close
      if !block_given?
        return @j_del.java_method(:close, []).call()
      elsif block_given?
        return @j_del.java_method(:close, [Java::IoVertxCore::Handler.java_class]).call((Proc.new { |ar| yield(ar.failed ? ar.cause : nil) }))
      end
      raise ArgumentError, "Invalid arguments when calling close()"
    end

### - (`true`, `false`) clustered?

Is this Vert.x instance clustered?

Returns:

- (`true`, `false`) —
  true if clustered

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 324

    def clustered?
      if !block_given?
        return @j_del.java_method(:isClustered, []).call()
      end
      raise ArgumentError, "Invalid arguments when calling clustered?()"
    end

### - (`::Vertx::DatagramSocket`) create_datagram_socket(options = nil)

Create a datagram socket using the specified options

Parameters:

- options (`Hash`) (defaults to: `nil`) —
  the options to use

Returns:

- (`::Vertx::DatagramSocket`) —
  the socket

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 161

    def create_datagram_socket(options=nil)
      if !block_given? && options == nil
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createDatagramSocket, []).call(),::Vertx::DatagramSocket)
      elsif options.class == Hash && !block_given?
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createDatagramSocket, [Java::IoVertxCoreDatagram::DatagramSocketOptions.java_class]).call(Java::IoVertxCoreDatagram::DatagramSocketOptions.new(::Vertx::Util::Utils.to_json_object(options))),::Vertx::DatagramSocket)
      end
      raise ArgumentError, "Invalid arguments when calling create_datagram_socket(#{options})"
    end

### - (`::Vertx::DnsClient`) create_dns_client(port = nil, host = nil)

Create a DNS client to connect to a DNS server at the specified host and port

Parameters:

- port (`Fixnum`) (defaults to: `nil`) —
  the port
- host (`String`) (defaults to: `nil`) —
  the host

Returns:

- (`::Vertx::DnsClient`) —
  the DNS client

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 195

    def create_dns_client(port=nil,host=nil)
      if port.class == Fixnum && host.class == String && !block_given?
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createDnsClient, [Java::int.java_class,Java::java.lang.String.java_class]).call(port,host),::Vertx::DnsClient)
      end
      raise ArgumentError, "Invalid arguments when calling create_dns_client(#{port},#{host})"
    end

### - (`::Vertx::HttpClient`) create_http_client(options = nil)

Create a HTTP/HTTPS client using the specified options

Parameters:

- options (`Hash`) (defaults to: `nil`) —
  the options to use

Returns:

- (`::Vertx::HttpClient`) —
  the client

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 150

    def create_http_client(options=nil)
      if !block_given? && options == nil
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createHttpClient, []).call(),::Vertx::HttpClient)
      elsif options.class == Hash && !block_given?
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createHttpClient, [Java::IoVertxCoreHttp::HttpClientOptions.java_class]).call(Java::IoVertxCoreHttp::HttpClientOptions.new(::Vertx::Util::Utils.to_json_object(options))),::Vertx::HttpClient)
      end
      raise ArgumentError, "Invalid arguments when calling create_http_client(#{options})"
    end

### - (`::Vertx::HttpServer`) create_http_server(options = nil)

Create an HTTP/HTTPS server using the specified options

Parameters:

- options (`Hash`) (defaults to: `nil`) —
  the options to use

Returns:

- (`::Vertx::HttpServer`) —
  the server

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 139

    def create_http_server(options=nil)
      if !block_given? && options == nil
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createHttpServer, []).call(),::Vertx::HttpServer)
      elsif options.class == Hash && !block_given?
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createHttpServer, [Java::IoVertxCoreHttp::HttpServerOptions.java_class]).call(Java::IoVertxCoreHttp::HttpServerOptions.new(::Vertx::Util::Utils.to_json_object(options))),::Vertx::HttpServer)
      end
      raise ArgumentError, "Invalid arguments when calling create_http_server(#{options})"
    end

### - (`::Vertx::NetClient`) create_net_client(options = nil)

Create a TCP/SSL client using the specified options

Parameters:

- options (`Hash`) (defaults to: `nil`) —
  the options to use

Returns:

- (`::Vertx::NetClient`) —
  the client

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 128

    def create_net_client(options=nil)
      if !block_given? && options == nil
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createNetClient, []).call(),::Vertx::NetClient)
      elsif options.class == Hash && !block_given?
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createNetClient, [Java::IoVertxCoreNet::NetClientOptions.java_class]).call(Java::IoVertxCoreNet::NetClientOptions.new(::Vertx::Util::Utils.to_json_object(options))),::Vertx::NetClient)
      end
      raise ArgumentError, "Invalid arguments when calling create_net_client(#{options})"
    end

### - (`::Vertx::NetServer`) create_net_server(options = nil)

Create a TCP/SSL server using the specified options

Parameters:

- options (`Hash`) (defaults to: `nil`) —
  the options to use

Returns:

- (`::Vertx::NetServer`) —
  the server

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 117

    def create_net_server(options=nil)
      if !block_given? && options == nil
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createNetServer, []).call(),::Vertx::NetServer)
      elsif options.class == Hash && !block_given?
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createNetServer, [Java::IoVertxCoreNet::NetServerOptions.java_class]).call(Java::IoVertxCoreNet::NetServerOptions.new(::Vertx::Util::Utils.to_json_object(options))),::Vertx::NetServer)
      end
      raise ArgumentError, "Invalid arguments when calling create_net_server(#{options})"
    end

### - (`::Vertx::WorkerExecutor`) create_shared_worker_executor(name = nil, poolSize = nil, maxExecuteTime = nil)

Create a named worker executor, the executor should be closed when it's not needed anymore to release resources.

This method can be called mutiple times with the same `name`. Executors with the same name will share the same worker pool. The worker pool size and max execute time are set when the worker pool is created and won't change after.

The worker pool is released when all the WorkerExecutor sharing the same name are closed.

Parameters:

- name (`String`) (defaults to: `nil`) —
  the name of the worker executor
- poolSize (`Fixnum`) (defaults to: `nil`) —
  the size of the pool
- maxExecuteTime (`Fixnum`) (defaults to: `nil`) —
  the value of max worker execute time, in ns

Returns:

- (`::Vertx::WorkerExecutor`) —
  the named worker executor

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 367

    def create_shared_worker_executor(name=nil,poolSize=nil,maxExecuteTime=nil)
      if name.class == String && !block_given? && poolSize == nil && maxExecuteTime == nil
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createSharedWorkerExecutor, [Java::java.lang.String.java_class]).call(name),::Vertx::WorkerExecutor)
      elsif name.class == String && poolSize.class == Fixnum && !block_given? && maxExecuteTime == nil
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createSharedWorkerExecutor, [Java::java.lang.String.java_class,Java::int.java_class]).call(name,poolSize),::Vertx::WorkerExecutor)
      elsif name.class == String && poolSize.class == Fixnum && maxExecuteTime.class == Fixnum && !block_given?
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:createSharedWorkerExecutor, [Java::java.lang.String.java_class,Java::int.java_class,Java::long.java_class]).call(name,poolSize,maxExecuteTime),::Vertx::WorkerExecutor)
      end
      raise ArgumentError, "Invalid arguments when calling create_shared_worker_executor(#{name},#{poolSize},#{maxExecuteTime})"
    end

### - (`void`) deploy_verticle(name = nil, options = nil) { ... }

This method returns an undefined value.

Like #deploy_verticle but Hash are provided to configure the deployment.

Parameters:

- name (`String`) (defaults to: `nil`) —
  the name
- options (`Hash`) (defaults to: `nil`) —
  the deployment options.

Yields:

- a handler which will be notified when the deployment is complete

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 290

    def deploy_verticle(name=nil,options=nil)
      if name.class == String && !block_given? && options == nil
        return @j_del.java_method(:deployVerticle, [Java::java.lang.String.java_class]).call(name)
      elsif name.class == String && block_given? && options == nil
        return @j_del.java_method(:deployVerticle, [Java::java.lang.String.java_class,Java::IoVertxCore::Handler.java_class]).call(name,(Proc.new { |ar| yield(ar.failed ? ar.cause : nil, ar.succeeded ? ar.result : nil) }))
      elsif name.class == String && options.class == Hash && !block_given?
        return @j_del.java_method(:deployVerticle, [Java::java.lang.String.java_class,Java::IoVertxCore::DeploymentOptions.java_class]).call(name,Java::IoVertxCore::DeploymentOptions.new(::Vertx::Util::Utils.to_json_object(options)))
      elsif name.class == String && options.class == Hash && block_given?
        return @j_del.java_method(:deployVerticle, [Java::java.lang.String.java_class,Java::IoVertxCore::DeploymentOptions.java_class,Java::IoVertxCore::Handler.java_class]).call(name,Java::IoVertxCore::DeploymentOptions.new(::Vertx::Util::Utils.to_json_object(options)),(Proc.new { |ar| yield(ar.failed ? ar.cause : nil, ar.succeeded ? ar.result : nil) }))
      end
      raise ArgumentError, "Invalid arguments when calling deploy_verticle(#{name},#{options})"
    end

### - (`Set<String>`) deployment_i_ds

Return a Set of deployment IDs for the currently deployed deploymentIDs.

Returns:

- (`Set<String>`) —
  Set of deployment IDs

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 316

    def deployment_i_ds
      if !block_given?
        return ::Vertx::Util::Utils.to_set(@j_del.java_method(:deploymentIDs, []).call()).map! { |elt| elt }
      end
      raise ArgumentError, "Invalid arguments when calling deployment_i_ds()"
    end

### - (`::Vertx::EventBus`) event_bus

Get the event bus object. There is a single instance of EventBus per Vertx instance.

Returns:

- (`::Vertx::EventBus`) —
  the event bus object

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 182

    def event_bus
      if !block_given?
        if @cached_event_bus != nil
          return @cached_event_bus
        end
        return @cached_event_bus = ::Vertx::Util::Utils.safe_create(@j_del.java_method(:eventBus, []).call(),::Vertx::EventBus)
      end
      raise ArgumentError, "Invalid arguments when calling event_bus()"
    end

### - (`self`) exception_handler { ... }

Set a default exception handler for Context, set on at creation.

Yields:

- the exception handler

Returns:

- (`self`)

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 380

    def exception_handler
      if block_given?
        @j_del.java_method(:exceptionHandler, [Java::IoVertxCore::Handler.java_class]).call((Proc.new { |event| yield(::Vertx::Util::Utils.from_throwable(event)) }))
        return self
      end
      raise ArgumentError, "Invalid arguments when calling exception_handler()"
    end

### - (`void`) execute_blocking(blockingCodeHandler = nil, ordered = nil) { ... }

This method returns an undefined value.

Safely execute some blocking code.

Executes the blocking code in the handler `blockingCodeHandler` using a thread from the worker pool.

When the code is complete the handler `resultHandler` will be called with the result on the original context (e.g. on the original event loop of the caller).

A `Future` instance is passed into `blockingCodeHandler`. When the blocking code successfully completes, the handler should call the Future#complete or Future#complete method, or the Future#fail method if it failed.

In the `blockingCodeHandler` the current context remains the original context and therefore any task scheduled in the `blockingCodeHandler` will be executed on the this context and not on the worker thread.

Parameters:

- blockingCodeHandler (`Proc`) (defaults to: `nil`) —
  handler representing the blocking code to run
- ordered (`true`, `false`) (defaults to: `nil`) —
  if true then if executeBlocking is called several times on the same context, the executions for that context will be executed serially, not in parallel. if false then they will be no ordering guarantees

Yields:

- handler that will be called when the blocking code is complete

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 347

    def execute_blocking(blockingCodeHandler=nil,ordered=nil)
      if blockingCodeHandler.class == Proc && block_given? && ordered == nil
        return @j_del.java_method(:executeBlocking, [Java::IoVertxCore::Handler.java_class,Java::IoVertxCore::Handler.java_class]).call((Proc.new { |event| blockingCodeHandler.call(::Vertx::Util::Utils.safe_create(event,::Vertx::Future, nil)) }),(Proc.new { |ar| yield(ar.failed ? ar.cause : nil, ar.succeeded ? ::Vertx::Util::Utils.from_object(ar.result) : nil) }))
      elsif blockingCodeHandler.class == Proc && (ordered.class == TrueClass || ordered.class == FalseClass) && block_given?
        return @j_del.java_method(:executeBlocking, [Java::IoVertxCore::Handler.java_class,Java::boolean.java_class,Java::IoVertxCore::Handler.java_class]).call((Proc.new { |event| blockingCodeHandler.call(::Vertx::Util::Utils.safe_create(event,::Vertx::Future, nil)) }),ordered,(Proc.new { |ar| yield(ar.failed ? ar.cause : nil, ar.succeeded ? ::Vertx::Util::Utils.from_object(ar.result) : nil) }))
      end
      raise ArgumentError, "Invalid arguments when calling execute_blocking(#{blockingCodeHandler},#{ordered})"
    end

### - (`::Vertx::FileSystem`) file_system

Get the filesystem object. There is a single instance of FileSystem per Vertx instance.

Returns:

- (`::Vertx::FileSystem`) —
  the filesystem object

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 171

    def file_system
      if !block_given?
        if @cached_file_system != nil
          return @cached_file_system
        end
        return @cached_file_system = ::Vertx::Util::Utils.safe_create(@j_del.java_method(:fileSystem, []).call(),::Vertx::FileSystem)
      end
      raise ArgumentError, "Invalid arguments when calling file_system()"
    end

### - (`::Vertx::Context`) get_or_create_context

Gets the current context, or creates one if there isn't one

Returns:

- (`::Vertx::Context`) —
  The current context (created if didn't exist)

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 108

    def get_or_create_context
      if !block_given?
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:getOrCreateContext, []).call(),::Vertx::Context)
      end
      raise ArgumentError, "Invalid arguments when calling get_or_create_context()"
    end

### - (`true`, `false`) metrics_enabled?

Whether the metrics are enabled for this measured object

Returns:

- (`true`, `false`) —
  true if the metrics are enabled

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 69

    def metrics_enabled?
      if !block_given?
        return @j_del.java_method(:isMetricsEnabled, []).call()
      end
      raise ArgumentError, "Invalid arguments when calling metrics_enabled?()"
    end

### - (`::Vertx::TimeoutStream`) periodic_stream(delay = nil)

Returns a periodic timer as a read stream. The timer will be fired every `delay` milliseconds after the has been called.

Parameters:

- delay (`Fixnum`) (defaults to: `nil`) —
  the delay in milliseconds, after which the timer will fire

Returns:

- (`::Vertx::TimeoutStream`) —
  the periodic stream

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 248

    def periodic_stream(delay=nil)
      if delay.class == Fixnum && !block_given?
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:periodicStream, [Java::long.java_class]).call(delay),::Vertx::TimeoutStream)
      end
      raise ArgumentError, "Invalid arguments when calling periodic_stream(#{delay})"
    end

### - (`void`) run_on_context { ... }

This method returns an undefined value.

Puts the handler on the event queue for the current context so it will be run asynchronously ASAP after all preceeding events have been handled.

Yields:

- - a handler representing the action to execute

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 267

    def run_on_context
      if block_given?
        return @j_del.java_method(:runOnContext, [Java::IoVertxCore::Handler.java_class]).call(Proc.new { yield })
      end
      raise ArgumentError, "Invalid arguments when calling run_on_context()"
    end

### - (`Fixnum`) set_periodic(delay = nil) { ... }

Set a periodic timer to fire every `delay` milliseconds, at which point `handler` will be called with the id of the timer.

Parameters:

- delay (`Fixnum`) (defaults to: `nil`) —
  the delay in milliseconds, after which the timer will fire

Yields:

- the handler that will be called with the timer ID when the timer fires

Returns:

- (`Fixnum`) —
  the unique ID of the timer

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 238

    def set_periodic(delay=nil)
      if delay.class == Fixnum && block_given?
        return @j_del.java_method(:setPeriodic, [Java::long.java_class,Java::IoVertxCore::Handler.java_class]).call(delay,(Proc.new { |event| yield(event) }))
      end
      raise ArgumentError, "Invalid arguments when calling set_periodic(#{delay})"
    end

### - (`Fixnum`) set_timer(delay = nil) { ... }

Set a one-shot timer to fire after `delay` milliseconds, at which point `handler` will be called with the id of the timer.

Parameters:

- delay (`Fixnum`) (defaults to: `nil`) —
  the delay in milliseconds, after which the timer will fire

Yields:

- the handler that will be called with the timer ID when the timer fires

Returns:

- (`Fixnum`) —
  the unique ID of the timer

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 217

    def set_timer(delay=nil)
      if delay.class == Fixnum && block_given?
        return @j_del.java_method(:setTimer, [Java::long.java_class,Java::IoVertxCore::Handler.java_class]).call(delay,(Proc.new { |event| yield(event) }))
      end
      raise ArgumentError, "Invalid arguments when calling set_timer(#{delay})"
    end

### - (`::Vertx::SharedData`) shared_data

Get the shared data object. There is a single instance of SharedData per Vertx instance.

Returns:

- (`::Vertx::SharedData`) —
  the shared data object

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 203

    def shared_data
      if !block_given?
        if @cached_shared_data != nil
          return @cached_shared_data
        end
        return @cached_shared_data = ::Vertx::Util::Utils.safe_create(@j_del.java_method(:sharedData, []).call(),::Vertx::SharedData)
      end
      raise ArgumentError, "Invalid arguments when calling shared_data()"
    end

### - (`::Vertx::TimeoutStream`) timer_stream(delay = nil)

Returns a one-shot timer as a read stream. The timer will be fired after `delay` milliseconds after the has been called.

Parameters:

- delay (`Fixnum`) (defaults to: `nil`) —
  the delay in milliseconds, after which the timer will fire

Returns:

- (`::Vertx::TimeoutStream`) —
  the timer stream

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 227

    def timer_stream(delay=nil)
      if delay.class == Fixnum && !block_given?
        return ::Vertx::Util::Utils.safe_create(@j_del.java_method(:timerStream, [Java::long.java_class]).call(delay),::Vertx::TimeoutStream)
      end
      raise ArgumentError, "Invalid arguments when calling timer_stream(#{delay})"
    end

### - (`void`) undeploy(deploymentID = nil) { ... }

This method returns an undefined value.

Like #undeploy(String) but the completionHandler will be notified when the undeployment is complete.

Parameters:

- deploymentID (`String`) (defaults to: `nil`) —
  the deployment ID

Yields:

- a handler which will be notified when the undeployment is complete

Raises:

- (`ArgumentError`)

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    # File '/Users/julien/java/vertx-stack/stack-docs/target/rb/vertx/vertx.rb', line 306

    def undeploy(deploymentID=nil)
      if deploymentID.class == String && !block_given?
        return @j_del.java_method(:undeploy, [Java::java.lang.String.java_class]).call(deploymentID)
      elsif deploymentID.class == String && block_given?
        return @j_del.java_method(:undeploy, [Java::java.lang.String.java_class,Java::IoVertxCore::Handler.java_class]).call(deploymentID,(Proc.new { |ar| yield(ar.failed ? ar.cause : nil) }))
      end
      raise ArgumentError, "Invalid arguments when calling undeploy(#{deploymentID})"
    end