org.apache.torque.generator.source.stream

## Class FileSourceProvider

- java.lang.Object
- - org.apache.torque.generator.source.SourceProvider
  - - org.apache.torque.generator.source.stream.FileSourceProvider

- All Implemented Interfaces:
    Iterator<Source>

      public class FileSourceProvider
      extends SourceProvider

  Contains sources which are read from files in the file system. $Id: FileSourceProvider.java 1839288 2018-08-27 09:48:33Z tv $

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `FileSourceProvider(StreamSourceFormat sourceFormat, Fileset sourceFileset, Boolean combineFiles)` Constructor.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `SourceProvider` | `copy()` Returns a copy of this source provider in its initial state.
    `void` | `copyNotSetSettingsFrom(SourceProvider sourceProvider)` Copies settings which are not set in this source provider from another source provider.
    `Boolean` | `getCombineFiles()` Returns whether source files are combined into one source tree.
    `List<File>` | `getPaths()` Returns all paths in the source Fileset.
    `Fileset` | `getSourceFileset()` Returns the fileset which determines the source files to read.
    `StreamSourceFormat` | `getSourceFormat()` Returns the source format for this provider.
    `boolean` | `hasNext()`
    `protected void` | `initInternal(ConfigurationHandlers configurationHandlers, ControllerState controllerState)` Determines the files which match the source fileset.
    `Source` | `next()`
    `void` | `remove()`
    `void` | `resetInternal(ConfigurationHandlers configurationHandlers, ControllerState controllerState)` Resets the sources provided by this SourceProvider.
    `void` | `setSourceFileset(Fileset sourceFileset)` Sets the fileset which determines the source files to read.
    `String` | `toString()`

    - ### Methods inherited from class org.apache.torque.generator.source.SourceProvider

      `init, isInit, reset`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

    - ### Methods inherited from interface java.util.Iterator

      `forEachRemaining`

- - ### Constructor Detail

    - #### FileSourceProvider

          public FileSourceProvider(StreamSourceFormat sourceFormat,
                                    Fileset sourceFileset,
                                    Boolean combineFiles)
                             throws ConfigurationException

      Constructor.
      Parameters:
        `sourceFormat` - the source format, or null if the source format should be determined from the file extension.
        `sourceFileset` - the fileset defining the source files, not null.
        `combineFiles` - whether all files should be combined into one source tree.
      Throws:
        `IllegalArgumentException` - if the source type is unknown.
        `NullPointerException` - if path is null.
        `ConfigurationException` - if the source filter cannot be instantiated.

  - ### Method Detail

    - #### initInternal

          protected void initInternal(ConfigurationHandlers configurationHandlers,
                                      ControllerState controllerState)
                               throws ConfigurationException

      Determines the files which match the source fileset.
      Specified by:
        `initInternal` in class `SourceProvider`
      Parameters:
        `configurationHandlers` - the configuration handlers, not null.
        `controllerState` - the current controller state, not null.
      Throws:
        `ConfigurationException` - if the sourceFileset has no basedir or if the files cannot be determined.

    - #### resetInternal

          public void resetInternal(ConfigurationHandlers configurationHandlers,
                                    ControllerState controllerState)

      Description copied from class: `SourceProvider`
      Resets the sources provided by this SourceProvider.
      Specified by:
        `resetInternal` in class `SourceProvider`
      Parameters:
        `configurationHandlers` - the configuration handlers, not null.
        `controllerState` - the current controller state, not null.

    - #### hasNext

          public boolean hasNext()

    - #### next

          public Source next()

    - #### remove

          public void remove()

    - #### toString

          public String toString()

      Overrides:
        `toString` in class `Object`

    - #### getSourceFormat

          public StreamSourceFormat getSourceFormat()

      Returns the source format for this provider.
      Returns:
        the source format, or null if the format is determined from file extensions.

    - #### getSourceFileset

          public Fileset getSourceFileset()

      Returns the fileset which determines the source files to read.
      Returns:
        the fileset which determines the source files to read.

    - #### setSourceFileset

          public void setSourceFileset(Fileset sourceFileset)

      Sets the fileset which determines the source files to read.
      Parameters:
        `sourceFileset` - the new source fileset, not null.
      Throws:
        `NullPointerException` - if sourceFileset is null.
        `IllegalStateException` - if init() was called before.

    - #### getPaths

          public List<File> getPaths()

      Returns all paths in the source Fileset. The method init() must be called beforehand.
      Returns:
        all Paths in the source fileset, not null.
      Throws:
        `IllegalStateException` - if the init method was not yet called.

    - #### getCombineFiles

          public Boolean getCombineFiles()

      Returns whether source files are combined into one source tree.
      Returns:
        true if the source files are combined into one source tree, false otherwise, null to allow overriding this property (but will count as false if not overridden).

    - #### copy

          public SourceProvider copy()
                              throws ConfigurationException

      Returns a copy of this source provider in its initial state. This means the `SourceProvider.init(ConfigurationHandlers, ControllerState)` method of the new source provider must be called before it can be used.
      Specified by:
        `copy` in class `SourceProvider`
      Returns:
        the SourceProvider
      Throws:
        `ConfigurationException` - if the new SourceProvider cannot be initialized.

    - #### copyNotSetSettingsFrom

          public void copyNotSetSettingsFrom(SourceProvider sourceProvider)

      Copies settings which are not set in this source provider from another source provider. This only works if the type of the other source provider is known to this source provider. Only a subset of all properties are typically used for overwriting. No Properties which are already set are overwritten.
      Specified by:
        `copyNotSetSettingsFrom` in class `SourceProvider`
      Parameters:
        `sourceProvider` - the source provoder to copy the settings from.

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