Package org.apache.nutch.parse.ext

## Class ExtParser

- java.lang.Object
- - org.apache.nutch.parse.ext.ExtParser

- All Implemented Interfaces:
    `Configurable`, `Parser`, `Pluggable`

      public class ExtParser
      extends Object
      implements Parser

  A wrapper that invokes external command to do real parsing job.
  Author:
    John Xing

- - ### Field Summary

    - ### Fields inherited from interface org.apache.nutch.parse.Parser

      `X_POINT_ID`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `ExtParser()` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `Configuration` | `getConf()` |
    `ParseResult` | `getParse​(Content content)` | This method parses the given content and returns a map of <key, parse> pairs.
    `void` | `setConf​(Configuration conf)` |

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

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

- - ### Constructor Detail

    - #### ExtParser

          public ExtParser()

  - ### Method Detail

    - #### getParse

          public ParseResult getParse​(Content content)

      Description copied from interface: `Parser`

      This method parses the given content and returns a map of <key, parse> pairs. `Parse` instances will be persisted under the given key.

      Note: Meta-redirects should be followed only when they are coming from the original URL. That is:
      Assume fetcher is in parsing mode and is currently processing foo.bar.com/redirect.html. If this url contains a meta redirect to another url, fetcher should only follow the redirect if the map contains an entry of the form <"foo.bar.com/redirect.html", `Parse` with a `ParseStatus` indicating the redirect>.

      Specified by:
        `getParse` in interface `Parser`
      Parameters:
        `content` - Content to be parsed
      Returns:
        a map containing <key, parse> pairs

    - #### setConf

          public void setConf​(Configuration conf)

      Specified by:
        `setConf` in interface `Configurable`

    - #### getConf

          public Configuration getConf()

      Specified by:
        `getConf` in interface `Configurable`