org.apache.lucene.benchmark.byTask.tasks

## Class AddIndexesTask

- java.lang.Object
- - org.apache.lucene.benchmark.byTask.tasks.PerfTask
  - - org.apache.lucene.benchmark.byTask.tasks.AddIndexesTask

- All Implemented Interfaces:
    Cloneable

      public class AddIndexesTask
      extends PerfTask

  Adds an input index to an existing index, using `IndexWriter.addIndexes(Directory...)` or `IndexWriter.addIndexes(IndexReader...)`. The location of the input index is specified by the parameter `ADDINDEXES_INPUT_DIR` and is assumed to be a directory on the file system.

  Takes optional parameter `useAddIndexesDir` which specifies which addIndexes variant to use (defaults to true, to use addIndexes(Directory)).

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static String` | `ADDINDEXES_INPUT_DIR`

    - ### Fields inherited from class org.apache.lucene.benchmark.byTask.tasks.PerfTask

      `logStep, NEW_LINE, params, stopNow`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `AddIndexesTask(PerfRunData runData)`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `int` | `doLogic()` Perform the task once (ignoring repetitions specification) Return number of work items done by this task.
    `void` | `setParams(String params)` Set the params (useAddIndexesDir only)
    `void` | `setup()` Task setup work that should not be measured for that specific task.
    `boolean` | `supportsParams()` Sub classes that support parameters must override this method to return true.
    `void` | `tearDown()` Task tearDown work that should not be measured for that specific task.

    - ### Methods inherited from class org.apache.lucene.benchmark.byTask.tasks.PerfTask

      `clone, close, getAlgLineNum, getBackgroundDeltaPriority, getDepth, getLogMessage, getName, getParams, getRunData, getRunInBackground, isDisableCounting, runAndMaybeStats, setAlgLineNum, setDepth, setDisableCounting, setName, setRunInBackground, shouldNeverLogAtStart, shouldNotRecordStats, stopNow, toString`

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

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

- - ### Field Detail

    - #### ADDINDEXES_INPUT_DIR

          public static final String ADDINDEXES_INPUT_DIR

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### AddIndexesTask

          public AddIndexesTask(PerfRunData runData)

  - ### Method Detail

    - #### setup

          public void setup()
                     throws Exception

      Description copied from class: `PerfTask`
      Task setup work that should not be measured for that specific task. By default it does nothing, but tasks can implement this, moving work from `PerfTask.doLogic()` to this method. Only the work done in `PerfTask.doLogic()` is measured for this task. Notice that higher level (sequence) tasks containing this task would then measure larger time than the sum of their contained tasks.
      Overrides:
        `setup` in class `PerfTask`
      Throws:
        `Exception`

    - #### doLogic

          public int doLogic()
                      throws Exception

      Description copied from class: `PerfTask`
      Perform the task once (ignoring repetitions specification) Return number of work items done by this task. For indexing that can be number of docs added. For warming that can be number of scanned items, etc.
      Specified by:
        `doLogic` in class `PerfTask`
      Returns:
        number of work items done by this task.
      Throws:
        `Exception`

    - #### setParams

          public void setParams(String params)

      Set the params (useAddIndexesDir only)
      Overrides:
        `setParams` in class `PerfTask`
      Parameters:
        `params` - `useAddIndexesDir=true` for using `IndexWriter.addIndexes(Directory...)` or `false` for using `IndexWriter.addIndexes(IndexReader...)`. Defaults to `true`.

    - #### supportsParams

          public boolean supportsParams()

      Description copied from class: `PerfTask`
      Sub classes that support parameters must override this method to return true.
      Overrides:
        `supportsParams` in class `PerfTask`
      Returns:
        true iff this task supports command line params.

    - #### tearDown

          public void tearDown()
                        throws Exception

      Description copied from class: `PerfTask`
      Task tearDown work that should not be measured for that specific task. By default it does nothing, but tasks can implement this, moving work from `PerfTask.doLogic()` to this method. Only the work done in `PerfTask.doLogic()` is measured for this task. Notice that higher level (sequence) tasks containing this task would then measure larger time than the sum of their contained tasks.
      Overrides:
        `tearDown` in class `PerfTask`
      Throws:
        `Exception`

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