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## org.mule.transport.ftp
Class FtpMessageReceiver

    java.lang.Object
      org.mule.transport.AbstractConnectable
          org.mule.transport.AbstractMessageReceiver
              org.mule.transport.AbstractPollingMessageReceiver
                  org.mule.transport.ftp.FtpMessageReceiver

All Implemented Interfaces:
  Disposable, Initialisable, Lifecycle, LifecycleStateEnabled, Startable, Stoppable, MessageSource, Connectable, MessageReceiver

    public class FtpMessageReceiver

extends AbstractPollingMessageReceiver

Field Summary
`protected FtpConnector` | `connector`
`protected Set<String>` | `currentFiles`
`protected FilenameFilter` | `filenameFilter`
`protected Set<String>` | `scheduledFiles`

Fields inherited from class org.mule.transport.AbstractPollingMessageReceiver
`DEFAULT_POLL_FREQUENCY, DEFAULT_POLL_TIMEUNIT, DEFAULT_STARTUP_DELAY, schedules`

Fields inherited from class org.mule.transport.AbstractMessageReceiver
`defaultInboundTransformers, defaultResponseTransformers, flowConstruct, listener, receiverKey`

Fields inherited from class org.mule.transport.AbstractConnectable
`connected, connecting, endpoint, lifecycleManager, logger, muleMessageFactory, retryTemplate, startOnConnect`

Fields inherited from interface org.mule.api.lifecycle.Initialisable
`PHASE_NAME`

Fields inherited from interface org.mule.api.lifecycle.Startable
`PHASE_NAME`

Fields inherited from interface org.mule.api.lifecycle.Stoppable
`PHASE_NAME`

Fields inherited from interface org.mule.api.lifecycle.Disposable
`PHASE_NAME`

Constructor Summary
`FtpMessageReceiver(Connector connector, FlowConstruct flowConstruct, InboundEndpoint endpoint, long frequency)`

Method Summary
`protected FtpMuleMessageFactory` | `createMuleMessageFactory(org.apache.commons.net.ftp.FTPClient client)`
`protected void` | `doConnect()`
`protected void` | `doDisconnect()`
`protected void` | `doDispose()`
`protected void` | `initializeMessageFactory()` Subclasses can override this method to create a custom `MuleMessageFactory` instead of re-using the instance from the connector.
`protected org.apache.commons.net.ftp.FTPFile[]` | `listFiles()`
`void` | `poll()`
`protected void` | `postProcess(org.apache.commons.net.ftp.FTPClient client, org.apache.commons.net.ftp.FTPFile file, MuleMessage message)`
`protected void` | `processFile(org.apache.commons.net.ftp.FTPFile file)`
`RetryContext` | `validateConnection(RetryContext retryContext)` Test whether the connector is able to connect to its resource(s).

Methods inherited from class org.mule.transport.AbstractPollingMessageReceiver
`createWork, doStart, doStop, getFrequency, getTimeUnit, schedule, setFrequency, setTimeUnit, unschedule`

Methods inherited from class org.mule.transport.AbstractMessageReceiver
`applyInboundTransformers, applyResponseTransformers, createLifecycleManager, createMuleEvent, getConnectEventId, getConnectionDescription, getEndpoint, getEndpointURI, getFlowConstruct, getReceiverKey, getWorkManager, handleUnacceptedFilter, initialise, routeMessage, routeMessage, routeMessage, routeMessage, setEndpoint, setListener, setReceiverKey, toString`

Methods inherited from class org.mule.transport.AbstractConnectable
`activate, callDoStartWhenItIsConnected, connect, connectAndThenStart, createMuleMessage, createMuleMessage, createMuleMessage, createMuleMessageFactory, createNullMuleMessage, disconnect, dispose, disposeAndLogException, doInitialise, getConnectEventId, getConnector, getLifecycleState, initializeRetryPolicy, isConnected, isConnecting, isDoThreading, isStarted, passivate, setEndpoint, start, stop, validate`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Methods inherited from interface org.mule.api.transport.MessageReceiver
`createMuleMessage, createMuleMessage`

Methods inherited from interface org.mule.api.transport.Connectable
`connect, disconnect, isConnected`

Methods inherited from interface org.mule.api.lifecycle.Startable
`start`

Methods inherited from interface org.mule.api.lifecycle.Stoppable
`stop`

Methods inherited from interface org.mule.api.lifecycle.Disposable
`dispose`

Field Detail

### connector

    protected final FtpConnector connector

### filenameFilter

    protected final FilenameFilter filenameFilter

### scheduledFiles

    protected final Set<String> scheduledFiles

### currentFiles

    protected final Set<String> currentFiles

Constructor Detail

### FtpMessageReceiver

    public FtpMessageReceiver(Connector connector,
                              FlowConstruct flowConstruct,
                              InboundEndpoint endpoint,
                              long frequency)
                       throws CreateException

Throws:
  `CreateException`

Method Detail

### poll

    public void poll()
              throws Exception

  Specified by:
    `poll` in class `AbstractPollingMessageReceiver`
  Throws:
    `Exception`

### listFiles

    protected org.apache.commons.net.ftp.FTPFile[] listFiles()
                                                      throws Exception

  Throws:
    `Exception`

### processFile

    protected void processFile(org.apache.commons.net.ftp.FTPFile file)
                        throws Exception

  Throws:
    `Exception`

### initializeMessageFactory

    protected void initializeMessageFactory()
                                     throws InitialisationException

  Description copied from class: `AbstractConnectable`
  Subclasses can override this method to create a custom `MuleMessageFactory` instead of re-using the instance from the connector.

  Overrides:
    `initializeMessageFactory` in class `AbstractConnectable`
  Throws:
    `InitialisationException`

### createMuleMessageFactory

    protected FtpMuleMessageFactory createMuleMessageFactory(org.apache.commons.net.ftp.FTPClient client)
                                                      throws CreateException

  Throws:
    `CreateException`

### postProcess

    protected void postProcess(org.apache.commons.net.ftp.FTPClient client,
                               org.apache.commons.net.ftp.FTPFile file,
                               MuleMessage message)
                        throws Exception

  Throws:
    `Exception`

### doConnect

    protected void doConnect()
                      throws Exception

  Overrides:
    `doConnect` in class `AbstractConnectable`
  Throws:
    `Exception`

### validateConnection

    public RetryContext validateConnection(RetryContext retryContext)

  Description copied from interface: `Connectable`
  Test whether the connector is able to connect to its resource(s). This will allow a retry policy to go into effect in the case of failure. Implementations must call either:
  - `RetryContext.setOk()` when no problems found (or no validation required).
  - `RetryContext.setFailed(Throwable)` with a root cause for a connection failure.
  Callers should then check for `RetryContext.isOk()`. The failure, if any, will be provided via the `RetryContext.getLastFailure()`.

  Specified by:
    `validateConnection` in interface `Connectable`
  Overrides:
    `validateConnection` in class `AbstractConnectable`
  Returns:
    same retry context with status info set and any failures populated

### doDisconnect

    protected void doDisconnect()
                         throws Exception

  Overrides:
    `doDisconnect` in class `AbstractConnectable`
  Throws:
    `Exception`

### doDispose

    protected void doDispose()

  Overrides:
    `doDispose` in class `AbstractConnectable`

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