# Uses of Package
org.apache.nutch.protocol

- Packages that use org.apache.nutch.protocol
  Package | Description
  --- | ---
  org.apache.nutch.analysis.lang | Text document language identifier.
  org.apache.nutch.any23 | This packages uses the Apache Any23 library for parsing and extracting structured data in RDF format from a variety of Web documents.
  org.apache.nutch.crawl | Crawl control code and tools to run the crawler.
  org.apache.nutch.microformats.reltag | A microformats Rel-Tag Parser/Indexer/Querier plugin.
  org.apache.nutch.parse | The `Parse` interface and related classes.
  org.apache.nutch.parse.ext | Parse wrapper to run external command to do the parsing.
  org.apache.nutch.parse.feed | Parse RSS feeds.
  org.apache.nutch.parse.headings | Parse filter to extract headings (h1, h2, etc.) from DOM parse tree.
  org.apache.nutch.parse.html | An HTML document parsing plugin.
  org.apache.nutch.parse.js | Parser and parse filter plugin to extract all (possible) links from JavaScript files and embedded JavaScript code snippets.
  org.apache.nutch.parse.metatags | Parse filter to extract meta tags: keywords, description, etc.
  org.apache.nutch.parse.swf | Parse Flash SWF files.
  org.apache.nutch.parse.tika | Parse various document formats with help of Apache Tika.
  org.apache.nutch.parse.zip | Parse ZIP files: embedded files are recursively passed to appropriate parsers.
  org.apache.nutch.parsefilter.naivebayes | Html Parse filter that classifies the outlinks from the parseresult as relevant or irrelevant based on the parseText's relevancy (using a training file where you can give positive and negative example texts see the description of parsefilter.naivebayes.trainfile) and if found irrelevent it gives the link a second chance if it contains any of the words from the list given in parsefilter.naivebayes.wordlist.
  org.apache.nutch.parsefilter.regex | RegexParseFilter.
  org.apache.nutch.protocol | Classes related to the `Protocol` interface, see also `org.apache.nutch.net.protocols`.
  org.apache.nutch.protocol.file | Protocol plugin which supports retrieving local file resources.
  org.apache.nutch.protocol.ftp | Protocol plugin which supports retrieving documents via the ftp protocol.
  org.apache.nutch.protocol.htmlunit | Protocol plugin which supports retrieving documents via the http protocol.
  org.apache.nutch.protocol.http.api | Common API used by HTTP plugins (`http`, `httpclient`)
  org.apache.nutch.protocol.okhttp | Protocol plugin based on okhttp, supports http, https, http/2.
  org.apache.nutch.scoring | The `ScoringFilter` interface.
  org.apache.nutch.scoring.depth | Scoring filter to stop crawling at a configurable depth (number of "hops" from seed URLs).
  org.apache.nutch.scoring.link | Scoring filter used in conjunction with `WebGraph`.
  org.apache.nutch.scoring.opic | Scoring filter implementing a variant of the Online Page Importance Computation (OPIC) algorithm.
  org.apache.nutch.scoring.similarity |
  org.apache.nutch.scoring.similarity.cosine | Implements the cosine similarity metric for scoring relevant documents
  org.apache.nutch.scoring.tld | Top Level Domain Scoring plugin.
  org.apache.nutch.scoring.urlmeta | URL Meta Tag Scoring Plugin
  org.apache.nutch.segment | A segment stores all data from on generate/fetch/update cycle: fetch list, protocol status, raw content, parsed content, and extracted outgoing links.
  org.apache.nutch.tools | Miscellaneous tools.
  org.apache.nutch.util | Miscellaneous utility classes.
  org.creativecommons.nutch | Sample plugins that parse and index Creative Commons medadata.

- Classes in org.apache.nutch.protocol used by org.apache.nutch.analysis.lang
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.any23
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.crawl
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.microformats.reltag
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parse
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parse.ext
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parse.feed
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parse.headings
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parse.html
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parse.js
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parse.metatags
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parse.swf
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parse.tika
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parse.zip
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parsefilter.naivebayes
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.parsefilter.regex
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.protocol
  Class and Description
  Content
  Protocol A retriever of url content.
  ProtocolException
  ProtocolNotFound
  ProtocolOutput Simple aggregate to pass from protocol plugins both content and protocol status.
  ProtocolStatus

- Classes in org.apache.nutch.protocol used by org.apache.nutch.protocol.file
  Class and Description
  Content
  Protocol A retriever of url content.
  ProtocolException
  ProtocolOutput Simple aggregate to pass from protocol plugins both content and protocol status.

- Classes in org.apache.nutch.protocol used by org.apache.nutch.protocol.ftp
  Class and Description
  Content
  Protocol A retriever of url content.
  ProtocolException
  ProtocolOutput Simple aggregate to pass from protocol plugins both content and protocol status.
  RobotRulesParser This class uses crawler-commons for handling the parsing of `robots.txt` files.

- Classes in org.apache.nutch.protocol used by org.apache.nutch.protocol.htmlunit
  Class and Description
  Protocol A retriever of url content.
  ProtocolException

- Classes in org.apache.nutch.protocol used by org.apache.nutch.protocol.http.api
  Class and Description
  Content
  Protocol A retriever of url content.
  ProtocolException
  ProtocolOutput Simple aggregate to pass from protocol plugins both content and protocol status.
  RobotRulesParser This class uses crawler-commons for handling the parsing of `robots.txt` files.

- Classes in org.apache.nutch.protocol used by org.apache.nutch.protocol.okhttp
  Class and Description
  Protocol A retriever of url content.
  ProtocolException

- Classes in org.apache.nutch.protocol used by org.apache.nutch.scoring
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.scoring.depth
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.scoring.link
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.scoring.opic
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.scoring.similarity
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.scoring.similarity.cosine
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.scoring.tld
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.scoring.urlmeta
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.segment
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.tools
  Class and Description
  Content

- Classes in org.apache.nutch.protocol used by org.apache.nutch.util
  Class and Description
  Content
  ProtocolOutput Simple aggregate to pass from protocol plugins both content and protocol status.

- Classes in org.apache.nutch.protocol used by org.creativecommons.nutch
  Class and Description
  Content

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