org.apache.lucene.benchmark.byTask.feeds

## Class ContentSource

- java.lang.Object
- - org.apache.lucene.benchmark.byTask.feeds.ContentItemsSource
  - - org.apache.lucene.benchmark.byTask.feeds.ContentSource

- All Implemented Interfaces:
    Closeable, AutoCloseable
  Direct Known Subclasses:
    DirContentSource, EnwikiContentSource, LineDocSource, LongToEnglishContentSource, ReutersContentSource, SingleDocSource, TrecContentSource

      public abstract class ContentSource
      extends ContentItemsSource

  Represents content from a specified source, such as TREC, Reuters etc. A `ContentSource` is responsible for creating `DocData` objects for its documents to be consumed by `DocMaker`. It also keeps track of various statistics, such as how many documents were generated, size in bytes etc.

  For supported configuration parameters see `ContentItemsSource`.

- - ### Field Summary

    - ### Fields inherited from class org.apache.lucene.benchmark.byTask.feeds.ContentItemsSource

      `encoding, forever, logStep, verbose`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `ContentSource()`

  - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `abstract DocData` | `getNextDocData(DocData docData)` Returns the next `DocData` from the content source.

    - ### Methods inherited from class org.apache.lucene.benchmark.byTask.feeds.ContentItemsSource

      `addBytes, addItem, close, collectFiles, getBytesCount, getConfig, getItemsCount, getTotalBytesCount, getTotalItemsCount, printStatistics, resetInputs, setConfig, shouldLog`

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

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

- - ### Constructor Detail

    - #### ContentSource

          public ContentSource()

  - ### Method Detail

    - #### getNextDocData

          public abstract DocData getNextDocData(DocData docData)
                                          throws NoMoreDataException,
                                                 IOException

      Returns the next `DocData` from the content source. Implementations must account for multi-threading, as multiple threads can call this method simultaneously.
      Throws:
        `NoMoreDataException`
        `IOException`

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