---
apiVersion: v1
kind: List
items:
- apiVersion: v1
  kind: ConfigMap
  metadata:
    labels:
      funktion.fabric8.io/kind: Connector
      provider: fabric8
      project: connector-hdfs2
      version: 1.1.55
      group: io.fabric8.funktion.connector
    name: hdfs2
  data:
    deployment.yml: |
      ---
      apiVersion: extensions/v1beta1
      kind: Deployment
      metadata:
        labels:
          funktion.fabric8.io/kind: Subscription
          connector: hdfs2
      spec:
        replicas: 1
        template:
          metadata:
            labels:
              funktion.fabric8.io/kind: Subscription
              connector: hdfs2
          spec:
            containers:
            - image: funktion/connector-hdfs2:1.1.55
              name: connector
    schema.yml: |
      ---
      component:
        kind: component
        scheme: hdfs2
        syntax: hdfs2:hostName:port/path
        title: HDFS2
        description: For reading/writing from/to an HDFS filesystem using Hadoop 2.x.
        label: hadoop,file
        deprecated: false
        async: false
        javaType: org.apache.camel.component.hdfs2.HdfsComponent
        groupId: org.apache.camel
        artifactId: camel-hdfs2
        version: 2.18.1
      componentProperties:
        jAASConfiguration:
          kind: property
          type: object
          javaType: javax.security.auth.login.Configuration
          deprecated: false
          secret: false
          description: To use the given configuration for security with JAAS.
          order: 0
      properties:
        hostName:
          kind: path
          group: common
          required: true
          type: string
          javaType: java.lang.String
          deprecated: false
          secret: false
          description: HDFS host to use
          order: 0
        port:
          kind: path
          group: common
          type: integer
          javaType: int
          deprecated: false
          secret: false
          defaultValue: "8020"
          description: HDFS port to use
          order: 1
        path:
          kind: path
          group: common
          required: true
          type: string
          javaType: java.lang.String
          deprecated: false
          secret: false
          description: The directory path to use
          order: 2
        connectOnStartup:
          kind: parameter
          group: common
          type: boolean
          javaType: boolean
          deprecated: false
          secret: false
          defaultValue: true
          description: Whether to connect to the HDFS file system on starting the producer/consumer. If false then the connection is created on-demand. Notice that HDFS may take up till 15 minutes to establish a connection as it has hardcoded 45 x 20 sec redelivery. By setting this option to false allows your application to startup and not block for up till 15 minutes.
          order: 3
        fileSystemType:
          kind: parameter
          group: common
          type: string
          javaType: org.apache.camel.component.hdfs2.HdfsFileSystemType
          enum:
          - LOCAL
          - HDFS
          deprecated: false
          secret: false
          defaultValue: HDFS
          description: Set to LOCAL to not use HDFS but local java.io.File instead.
          order: 4
        fileType:
          kind: parameter
          group: common
          type: string
          javaType: org.apache.camel.component.hdfs2.HdfsFileType
          enum:
          - NORMAL_FILE
          - SEQUENCE_FILE
          - MAP_FILE
          - BLOOMMAP_FILE
          - ARRAY_FILE
          deprecated: false
          secret: false
          defaultValue: NORMAL_FILE
          description: The file type to use. For more details see Hadoop HDFS documentation about the various files types.
          order: 5
        keyType:
          kind: parameter
          group: common
          type: string
          javaType: org.apache.camel.component.hdfs2.WritableType
          enum:
          - NULL
          - BOOLEAN
          - BYTE
          - INT
          - FLOAT
          - LONG
          - DOUBLE
          - TEXT
          - BYTES
          deprecated: false
          secret: false
          defaultValue: NULL
          description: The type for the key in case of sequence or map files.
          order: 6
        owner:
          kind: parameter
          group: common
          type: string
          javaType: java.lang.String
          deprecated: false
          secret: false
          description: The file owner must match this owner for the consumer to pickup the file. Otherwise the file is skipped.
          order: 7
        valueType:
          kind: parameter
          group: common
          type: string
          javaType: org.apache.camel.component.hdfs2.WritableType
          enum:
          - NULL
          - BOOLEAN
          - BYTE
          - INT
          - FLOAT
          - LONG
          - DOUBLE
          - TEXT
          - BYTES
          deprecated: false
          secret: false
          defaultValue: BYTES
          description: The type for the key in case of sequence or map files
          order: 8
        bridgeErrorHandler:
          kind: parameter
          group: consumer
          label: consumer
          type: boolean
          javaType: boolean
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          defaultValue: false
          description: Allows for bridging the consumer to the Camel routing Error Handler which mean any exceptions occurred while the consumer is trying to pickup incoming messages or the likes will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions that will be logged at WARN/ERROR level and ignored.
          order: 9
        delay:
          kind: parameter
          group: consumer
          label: consumer
          type: integer
          javaType: long
          deprecated: false
          secret: false
          defaultValue: "1000"
          description: The interval (milliseconds) between the directory scans.
          order: 10
        initialDelay:
          kind: parameter
          group: consumer
          label: consumer
          type: integer
          javaType: long
          deprecated: false
          secret: false
          description: For the consumer how much to wait (milliseconds) before to start scanning the directory.
          order: 11
        pattern:
          kind: parameter
          group: consumer
          label: consumer
          type: string
          javaType: java.lang.String
          deprecated: false
          secret: false
          defaultValue: '*'
          description: The pattern used for scanning the directory
          order: 12
        sendEmptyMessageWhenIdle:
          kind: parameter
          group: consumer
          label: consumer
          type: boolean
          javaType: boolean
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          defaultValue: false
          description: If the polling consumer did not poll any files you can enable this option to send an empty message (no body) instead.
          order: 13
        exceptionHandler:
          kind: parameter
          group: consumer (advanced)
          label: consumer,advanced
          type: object
          javaType: org.apache.camel.spi.ExceptionHandler
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          description: To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this options is not in use. By default the consumer will deal with exceptions that will be logged at WARN/ERROR level and ignored.
          order: 14
        exchangePattern:
          kind: parameter
          group: consumer (advanced)
          label: consumer,advanced
          type: string
          javaType: org.apache.camel.ExchangePattern
          enum:
          - InOnly
          - RobustInOnly
          - InOut
          - InOptionalOut
          - OutOnly
          - RobustOutOnly
          - OutIn
          - OutOptionalIn
          deprecated: false
          secret: false
          description: Sets the exchange pattern when the consumer creates an exchange.
          order: 15
        pollStrategy:
          kind: parameter
          group: consumer (advanced)
          label: consumer,advanced
          type: object
          javaType: org.apache.camel.spi.PollingConsumerPollStrategy
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          description: A pluggable org.apache.camel.PollingConsumerPollingStrategy allowing you to provide your custom implementation to control error handling usually occurred during the poll operation before an Exchange have been created and being routed in Camel.
          order: 16
        append:
          kind: parameter
          group: producer
          label: producer
          type: boolean
          javaType: boolean
          deprecated: false
          secret: false
          defaultValue: false
          description: Append to existing file. Notice that not all HDFS file systems support the append option.
          order: 17
        overwrite:
          kind: parameter
          group: producer
          label: producer
          type: boolean
          javaType: boolean
          deprecated: false
          secret: false
          defaultValue: true
          description: Whether to overwrite existing files with the same name
          order: 18
        blockSize:
          kind: parameter
          group: advanced
          label: advanced
          type: integer
          javaType: long
          deprecated: false
          secret: false
          defaultValue: "67108864"
          description: The size of the HDFS blocks
          order: 19
        bufferSize:
          kind: parameter
          group: advanced
          label: advanced
          type: integer
          javaType: int
          deprecated: false
          secret: false
          defaultValue: "4096"
          description: The buffer size used by HDFS
          order: 20
        checkIdleInterval:
          kind: parameter
          group: advanced
          label: advanced
          type: integer
          javaType: int
          deprecated: false
          secret: false
          defaultValue: "500"
          description: How often (time in millis) in to run the idle checker background task. This option is only in use if the splitter strategy is IDLE.
          order: 21
        chunkSize:
          kind: parameter
          group: advanced
          label: advanced
          type: integer
          javaType: int
          deprecated: false
          secret: false
          defaultValue: "4096"
          description: When reading a normal file this is split into chunks producing a message per chunk.
          order: 22
        compressionCodec:
          kind: parameter
          group: advanced
          label: advanced
          type: string
          javaType: org.apache.camel.component.hdfs2.HdfsCompressionCodec
          enum:
          - DEFAULT
          - GZIP
          - BZIP2
          deprecated: false
          secret: false
          defaultValue: DEFAULT
          description: The compression codec to use
          order: 23
        compressionType:
          kind: parameter
          group: advanced
          label: advanced
          type: object
          javaType: org.apache.hadoop.io.SequenceFile.CompressionType
          deprecated: false
          secret: false
          defaultValue: NONE
          description: The compression type to use (is default not in use)
          order: 24
        openedSuffix:
          kind: parameter
          group: advanced
          label: advanced
          type: string
          javaType: java.lang.String
          deprecated: false
          secret: false
          defaultValue: opened
          description: When a file is opened for reading/writing the file is renamed with this suffix to avoid to read it during the writing phase.
          order: 25
        readSuffix:
          kind: parameter
          group: advanced
          label: advanced
          type: string
          javaType: java.lang.String
          deprecated: false
          secret: false
          defaultValue: read
          description: Once the file has been read is renamed with this suffix to avoid to read it again.
          order: 26
        replication:
          kind: parameter
          group: advanced
          label: advanced
          type: integer
          javaType: short
          deprecated: false
          secret: false
          defaultValue: "3"
          description: The HDFS replication factor
          order: 27
        splitStrategy:
          kind: parameter
          group: advanced
          label: advanced
          type: string
          javaType: java.lang.String
          deprecated: false
          secret: false
          description: 'In the current version of Hadoop opening a file in append mode is
            disabled since it''s not very reliable. So for the moment it''s only possible
            to create new files. The Camel HDFS endpoint tries to solve this problem in
            this way: If the split strategy option has been defined the hdfs path will be
            used as a directory and files will be created using the configured UuidGenerator.
            Every time a splitting condition is met a new file is created. The splitStrategy
            option is defined as a string with the following syntax: splitStrategy=ST:valueST:value...
            where ST can be: BYTES a new file is created and the old is closed when the
            number of written bytes is more than value MESSAGES a new file is created and
            the old is closed when the number of written messages is more than value IDLE
            a new file is created and the old is closed when no writing happened in the
            last value milliseconds'
          order: 28
        synchronous:
          kind: parameter
          group: advanced
          label: advanced
          type: boolean
          javaType: boolean
          deprecated: false
          secret: false
          defaultValue: false
          description: Sets whether synchronous processing should be strictly used or Camel is allowed to use asynchronous processing (if supported).
          order: 29
        backoffErrorThreshold:
          kind: parameter
          group: scheduler
          label: consumer,scheduler
          type: integer
          javaType: int
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          description: The number of subsequent error polls (failed due some error) that should happen before the backoffMultipler should kick-in.
          order: 30
        backoffIdleThreshold:
          kind: parameter
          group: scheduler
          label: consumer,scheduler
          type: integer
          javaType: int
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          description: The number of subsequent idle polls that should happen before the backoffMultipler should kick-in.
          order: 31
        backoffMultiplier:
          kind: parameter
          group: scheduler
          label: consumer,scheduler
          type: integer
          javaType: int
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          description: To let the scheduled polling consumer backoff if there has been a number of subsequent idles/errors in a row. The multiplier is then the number of polls that will be skipped before the next actual attempt is happening again. When this option is in use then backoffIdleThreshold and/or backoffErrorThreshold must also be configured.
          order: 32
        greedy:
          kind: parameter
          group: scheduler
          label: consumer,scheduler
          type: boolean
          javaType: boolean
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          defaultValue: false
          description: If greedy is enabled then the ScheduledPollConsumer will run immediately again if the previous run polled 1 or more messages.
          order: 33
        runLoggingLevel:
          kind: parameter
          group: scheduler
          label: consumer,scheduler
          type: string
          javaType: org.apache.camel.LoggingLevel
          enum:
          - TRACE
          - DEBUG
          - INFO
          - WARN
          - ERROR
          - OFF
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          defaultValue: TRACE
          description: The consumer logs a start/complete log line when it polls. This option allows you to configure the logging level for that.
          order: 34
        scheduledExecutorService:
          kind: parameter
          group: scheduler
          label: consumer,scheduler
          type: object
          javaType: java.util.concurrent.ScheduledExecutorService
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          description: Allows for configuring a custom/shared thread pool to use for the consumer. By default each consumer has its own single threaded thread pool.
          order: 35
        scheduler:
          kind: parameter
          group: scheduler
          label: consumer,scheduler
          type: string
          javaType: org.apache.camel.spi.ScheduledPollConsumerScheduler
          enum:
          - none
          - spring
          - quartz2
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          defaultValue: none
          description: To use a cron scheduler from either camel-spring or camel-quartz2 component
          order: 36
        schedulerProperties:
          kind: parameter
          group: scheduler
          label: consumer,scheduler
          type: object
          javaType: java.util.Map<java.lang.String,java.lang.Object>
          prefix: scheduler.
          multiValue: true
          deprecated: false
          secret: false
          description: To configure additional properties when using a custom scheduler or any of the Quartz2 Spring based scheduler.
          order: 37
        startScheduler:
          kind: parameter
          group: scheduler
          label: consumer,scheduler
          type: boolean
          javaType: boolean
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          defaultValue: true
          description: Whether the scheduler should be auto started.
          order: 38
        timeUnit:
          kind: parameter
          group: scheduler
          label: consumer,scheduler
          type: string
          javaType: java.util.concurrent.TimeUnit
          enum:
          - NANOSECONDS
          - MICROSECONDS
          - MILLISECONDS
          - SECONDS
          - MINUTES
          - HOURS
          - DAYS
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          defaultValue: MILLISECONDS
          description: Time unit for initialDelay and delay options.
          order: 39
        useFixedDelay:
          kind: parameter
          group: scheduler
          label: consumer,scheduler
          type: boolean
          javaType: boolean
          optionalPrefix: consumer.
          deprecated: false
          secret: false
          defaultValue: true
          description: Controls if fixed delay or fixed rate is used. See ScheduledExecutorService in JDK for details.
          order: 40
    documentation.adoc: |
      [[HDFS2-HDFS2Component]]
      HDFS2 Component
      ~~~~~~~~~~~~~~~

      *Available as of Camel 2.13*

      The *hdfs2* component enables you to read and write messages from/to an
      HDFS file system using Hadoop 2.x. HDFS is the distributed file system
      at the heart of http://hadoop.apache.org[Hadoop].

      Maven users will need to add the following dependency to their `pom.xml`
      for this component:

      [source,xml]
      ------------------------------------------------------------
      <dependency>
          <groupId>org.apache.camel</groupId>
          <artifactId>camel-hdfs2</artifactId>
          <version>x.x.x</version>
          <!-- use the same version as your Camel core version -->
      </dependency>
      ------------------------------------------------------------

      [[HDFS2-URIformat]]
      URI format
      ^^^^^^^^^^

      [source,java]
      ----------------------------------------
      hdfs2://hostname[:port][/path][?options]
      ----------------------------------------

      You can append query options to the URI in the following format,
      `?option=value&option=value&...` +
       The path is treated in the following way:

      1.  as a consumer, if it's a file, it just reads the file, otherwise if
      it represents a directory it scans all the file under the path
      satisfying the configured pattern. All the files under that directory
      must be of the same type.
      2.  as a producer, if at least one split strategy is defined, the path
      is considered a directory and under that directory the producer creates
      a different file per split named using the configured
      link:uuidgenerator.html[UuidGenerator].


      When consuming from hdfs2 then in normal mode, a file is split into
      chunks, producing a message per chunk. You can configure the size of the
      chunk using the chunkSize option. If you want to read from hdfs and
      write to a regular file using the file component, then you can use the
      fileMode=Append to append each of the chunks together.

      [[HDFS2-Options]]
      Options
      ^^^^^^^





      // component options: START
      The HDFS2 component supports 1 options which are listed below.



      {% raw %}
      [width="100%",cols="2,1m,7",options="header"]
      |=======================================================================
      | Name | Java Type | Description
      | jAASConfiguration | Configuration | To use the given configuration for security with JAAS.
      |=======================================================================
      {% endraw %}
      // component options: END






      // endpoint options: START
      The HDFS2 component supports 41 endpoint options which are listed below:

      {% raw %}
      [width="100%",cols="2,1,1m,1m,5",options="header"]
      |=======================================================================
      | Name | Group | Default | Java Type | Description
      | hostName | common |  | String | *Required* HDFS host to use
      | port | common | 8020 | int | HDFS port to use
      | path | common |  | String | *Required* The directory path to use
      | connectOnStartup | common | true | boolean | Whether to connect to the HDFS file system on starting the producer/consumer. If false then the connection is created on-demand. Notice that HDFS may take up till 15 minutes to establish a connection as it has hardcoded 45 x 20 sec redelivery. By setting this option to false allows your application to startup and not block for up till 15 minutes.
      | fileSystemType | common | HDFS | HdfsFileSystemType | Set to LOCAL to not use HDFS but local java.io.File instead.
      | fileType | common | NORMAL_FILE | HdfsFileType | The file type to use. For more details see Hadoop HDFS documentation about the various files types.
      | keyType | common | NULL | WritableType | The type for the key in case of sequence or map files.
      | owner | common |  | String | The file owner must match this owner for the consumer to pickup the file. Otherwise the file is skipped.
      | valueType | common | BYTES | WritableType | The type for the key in case of sequence or map files
      | bridgeErrorHandler | consumer | false | boolean | Allows for bridging the consumer to the Camel routing Error Handler which mean any exceptions occurred while the consumer is trying to pickup incoming messages or the likes will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions that will be logged at WARN/ERROR level and ignored.
      | delay | consumer | 1000 | long | The interval (milliseconds) between the directory scans.
      | initialDelay | consumer |  | long | For the consumer how much to wait (milliseconds) before to start scanning the directory.
      | pattern | consumer | * | String | The pattern used for scanning the directory
      | sendEmptyMessageWhenIdle | consumer | false | boolean | If the polling consumer did not poll any files you can enable this option to send an empty message (no body) instead.
      | exceptionHandler | consumer (advanced) |  | ExceptionHandler | To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this options is not in use. By default the consumer will deal with exceptions that will be logged at WARN/ERROR level and ignored.
      | exchangePattern | consumer (advanced) |  | ExchangePattern | Sets the exchange pattern when the consumer creates an exchange.
      | pollStrategy | consumer (advanced) |  | PollingConsumerPollStrategy | A pluggable org.apache.camel.PollingConsumerPollingStrategy allowing you to provide your custom implementation to control error handling usually occurred during the poll operation before an Exchange have been created and being routed in Camel.
      | append | producer | false | boolean | Append to existing file. Notice that not all HDFS file systems support the append option.
      | overwrite | producer | true | boolean | Whether to overwrite existing files with the same name
      | blockSize | advanced | 67108864 | long | The size of the HDFS blocks
      | bufferSize | advanced | 4096 | int | The buffer size used by HDFS
      | checkIdleInterval | advanced | 500 | int | How often (time in millis) in to run the idle checker background task. This option is only in use if the splitter strategy is IDLE.
      | chunkSize | advanced | 4096 | int | When reading a normal file this is split into chunks producing a message per chunk.
      | compressionCodec | advanced | DEFAULT | HdfsCompressionCodec | The compression codec to use
      | compressionType | advanced | NONE | CompressionType | The compression type to use (is default not in use)
      | openedSuffix | advanced | opened | String | When a file is opened for reading/writing the file is renamed with this suffix to avoid to read it during the writing phase.
      | readSuffix | advanced | read | String | Once the file has been read is renamed with this suffix to avoid to read it again.
      | replication | advanced | 3 | short | The HDFS replication factor
      | splitStrategy | advanced |  | String | In the current version of Hadoop opening a file in append mode is disabled since it's not very reliable. So for the moment it's only possible to create new files. The Camel HDFS endpoint tries to solve this problem in this way: If the split strategy option has been defined the hdfs path will be used as a directory and files will be created using the configured UuidGenerator. Every time a splitting condition is met a new file is created. The splitStrategy option is defined as a string with the following syntax: splitStrategy=ST:valueST:value... where ST can be: BYTES a new file is created and the old is closed when the number of written bytes is more than value MESSAGES a new file is created and the old is closed when the number of written messages is more than value IDLE a new file is created and the old is closed when no writing happened in the last value milliseconds
      | synchronous | advanced | false | boolean | Sets whether synchronous processing should be strictly used or Camel is allowed to use asynchronous processing (if supported).
      | backoffErrorThreshold | scheduler |  | int | The number of subsequent error polls (failed due some error) that should happen before the backoffMultipler should kick-in.
      | backoffIdleThreshold | scheduler |  | int | The number of subsequent idle polls that should happen before the backoffMultipler should kick-in.
      | backoffMultiplier | scheduler |  | int | To let the scheduled polling consumer backoff if there has been a number of subsequent idles/errors in a row. The multiplier is then the number of polls that will be skipped before the next actual attempt is happening again. When this option is in use then backoffIdleThreshold and/or backoffErrorThreshold must also be configured.
      | greedy | scheduler | false | boolean | If greedy is enabled then the ScheduledPollConsumer will run immediately again if the previous run polled 1 or more messages.
      | runLoggingLevel | scheduler | TRACE | LoggingLevel | The consumer logs a start/complete log line when it polls. This option allows you to configure the logging level for that.
      | scheduledExecutorService | scheduler |  | ScheduledExecutorService | Allows for configuring a custom/shared thread pool to use for the consumer. By default each consumer has its own single threaded thread pool.
      | scheduler | scheduler | none | ScheduledPollConsumerScheduler | To use a cron scheduler from either camel-spring or camel-quartz2 component
      | schedulerProperties | scheduler |  | Map | To configure additional properties when using a custom scheduler or any of the Quartz2 Spring based scheduler.
      | startScheduler | scheduler | true | boolean | Whether the scheduler should be auto started.
      | timeUnit | scheduler | MILLISECONDS | TimeUnit | Time unit for initialDelay and delay options.
      | useFixedDelay | scheduler | true | boolean | Controls if fixed delay or fixed rate is used. See ScheduledExecutorService in JDK for details.
      |=======================================================================
      {% endraw %}
      // endpoint options: END




      [[HDFS2-KeyTypeandValueType]]
      KeyType and ValueType
      +++++++++++++++++++++

      * NULL it means that the key or the value is absent
      * BYTE for writing a byte, the java Byte class is mapped into a BYTE
      * BYTES for writing a sequence of bytes. It maps the java ByteBuffer
      class
      * INT for writing java integer
      * FLOAT for writing java float
      * LONG for writing java long
      * DOUBLE for writing java double
      * TEXT for writing java strings

      BYTES is also used with everything else, for example, in Camel a file is
      sent around as an InputStream, int this case is written in a sequence
      file or a map file as a sequence of bytes.

      [[HDFS2-SplittingStrategy]]
      Splitting Strategy
      ^^^^^^^^^^^^^^^^^^

      In the current version of Hadoop opening a file in append mode is
      disabled since it's not very reliable. So, for the moment, it's only
      possible to create new files. The Camel HDFS endpoint tries to solve
      this problem in this way:

      * If the split strategy option has been defined, the hdfs path will be
      used as a directory and files will be created using the configured
      link:uuidgenerator.html[UuidGenerator]
      * Every time a splitting condition is met, a new file is created. +
       The splitStrategy option is defined as a string with the following
      syntax: splitStrategy=<ST>:<value>,<ST>:<value>,*

      where <ST> can be:

      * BYTES a new file is created, and the old is closed when the number of
      written bytes is more than <value>
      * MESSAGES a new file is created, and the old is closed when the number
      of written messages is more than <value>
      * IDLE a new file is created, and the old is closed when no writing
      happened in the last <value> milliseconds

      note that this strategy currently requires either setting an IDLE value
      or setting the HdfsConstants.HDFS_CLOSE header to false to use the
      BYTES/MESSAGES configuration...otherwise, the file will be closed with
      each message

      for example:

      [source,java]
      -----------------------------------------------------------------
      hdfs2://localhost/tmp/simple-file?splitStrategy=IDLE:1000,BYTES:5
      -----------------------------------------------------------------

      it means: a new file is created either when it has been idle for more
      than 1 second or if more than 5 bytes have been written. So, running
      `hadoop fs -ls /tmp/simple-file` you'll see that multiple files have
      been created.

      [[HDFS2-MessageHeaders]]
      Message Headers
      ^^^^^^^^^^^^^^^

      The following headers are supported by this component:

      [[HDFS2-Produceronly]]
      Producer only
      +++++++++++++

      [width="100%",cols="10%,90%",options="header",]
      |=======================================================================
      |Header |Description

      |`CamelFileName` |*Camel 2.13:* Specifies the name of the file to write (relative to the
      endpoint path). The name can be a `String` or an
      link:expression.html[Expression] object. Only relevant when not using a
      split strategy.
      |=======================================================================

      [[HDFS2-Controllingtoclosefilestream]]
      Controlling to close file stream
      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

      When using the link:hdfs2.html[HDFS2] producer *without* a split
      strategy, then the file output stream is by default closed after the
      write. However you may want to keep the stream open, and only explicitly
      close the stream later. For that you can use the header
      `HdfsConstants.HDFS_CLOSE` (value = `"CamelHdfsClose"`) to control this.
      Setting this value to a boolean allows you to explicit control whether
      the stream should be closed or not.

      Notice this does not apply if you use a split strategy, as there are
      various strategies that can control when the stream is closed.

      [[HDFS2-UsingthiscomponentinOSGi]]
      Using this component in OSGi
      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

      There are some quirks when running this component in an OSGi environment
      related to the mechanism Hadoop 2.x uses to discover different
      `org.apache.hadoop.fs.FileSystem` implementations. Hadoop 2.x uses
      `java.util.ServiceLoader` which looks for
      `/META-INF/services/org.apache.hadoop.fs.FileSystem` files defining
      available filesystem types and implementations. These resources are not
      available when running inside OSGi.

      As with??`camel-hdfs` component, the default configuration files need to
      be visible from the bundle class loader. A typical way to deal with it
      is to keep a copy of??`core-default.xml` (and e.g., `hdfs-default.xml`)
      in your bundle root.

      [[HDFS2-Usingthiscomponentwithmanuallydefinedroutes]]
      Using this component with manually defined routes
      +++++++++++++++++++++++++++++++++++++++++++++++++

      There are two options:

      1.  Package `/META-INF/services/org.apache.hadoop.fs.FileSystem`
      resource with bundle that defines the routes. This resource should list
      all the required Hadoop 2.x filesystem implementations.
      2.  Provide boilerplate initialization code which populates internal,
      static cache inside `org.apache.hadoop.fs.FileSystem` class:

      [source,java]
      ----------------------------------------------------------------------------------------------------
      org.apache.hadoop.conf.Configuration conf = new org.apache.hadoop.conf.Configuration();
      conf.setClass("fs.file.impl", org.apache.hadoop.fs.LocalFileSystem.class, FileSystem.class);
      conf.setClass("fs.hdfs.impl", org.apache.hadoop.hdfs.DistributedFileSystem.class, FileSystem.class);
      ...
      FileSystem.get("file:///", conf);
      FileSystem.get("hdfs://localhost:9000/", conf);
      ...
      ----------------------------------------------------------------------------------------------------

      [[HDFS2-UsingthiscomponentwithBlueprintcontainer]]
      Using this component with Blueprint container
      +++++++++++++++++++++++++++++++++++++++++++++

      Two options:

      1.  Package `/META-INF/services/org.apache.hadoop.fs.FileSystem`
      resource with bundle that contains blueprint definition.
      2.  Add the following to the blueprint definition file:

      [source,java]
      ------------------------------------------------------------------------------------------------------
      <bean id="hdfsOsgiHelper" class="org.apache.camel.component.hdfs2.HdfsOsgiHelper">
         <argument>
            <map>
               <entry key="file:///" value="org.apache.hadoop.fs.LocalFileSystem"  />
               <entry key="hdfs://localhost:9000/" value="org.apache.hadoop.hdfs.DistributedFileSystem" />
               ...
            </map>
         </argument>
      </bean>

      <bean id="hdfs2" class="org.apache.camel.component.hdfs2.HdfsComponent" depends-on="hdfsOsgiHelper" />
      ------------------------------------------------------------------------------------------------------

      This way Hadoop 2.x will have correct mapping of URI schemes to
      filesystem implementations.
