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Admin > Search

Intended audience: developers administrators

AO Platform: 4.4

Overview

The Search pages enable users to configure options specific to Elasticsearch and Solr integration.

Most of the pages in this section offer the following general actions:

  • Search/Filter - use a search term to find an entry from existing configurations.

  • Delete - batch deletion of any/all selected items.

  • Add New - create a new entry on the page.

  • Refresh - refreshes the page.

  • Import from Excel - allows the provision to import the configuration of one or more entries of the selected configuration page.

  • Download Data - exports the content of the page to a CSV or Excel file.

  • Settings - allows configuration of which columns can be seen on the page.

  • Go to (or select by page number) - allows moving to another page in case of too many entries for one page.

Additionally, these are the actions on individual entries:

  • View - views the properties of an entry in read-only mode.

  • Edit - allows the properties of an entry to be edited.

  • Delete - deletes an entry.

  • Add to Transport - adds the configuration record to Transport.

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Elasticsearch > Analyzers

The Analyzers page includes a list of Standard or Custom Analyzers that can be used to create search indices. Text analysis enables Elasticsearch to perform full-text search, where the search returns all relevant results rather than just exact matches.

For a full Analyzer reference for Elasticsearch, see https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-analyzers.html.

Configuration details include Properties for these categories: General and Analyzer.

Elasticsearch > Tokenizers

The Tokenizers page includes a list of Standard or Custom Tokenizers.

A Tokenizer receives a stream of characters, breaks it up into individual tokens (usually individual words), and outputs a stream of tokens. For instance, a whitespace tokenizer breaks text into tokens whenever it sees any whitespace. It would convert the text "Quick brown fox!" into the terms [Quick, brown, fox!].

The Tokenizer is also responsible for recording the following:

  • Order or position of each term (used for phrase and word proximity queries)

  • Start and end character offsets of the original word which the term represents (used for highlighting search snippets).

  • Token type, a classification of each term produced, such as <ALPHANUM>, <HANGUL>, or <NUM>. Simpler analyzers only produce the word token type.

For a full Tokenizer reference for Elasticsearch, see https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-tokenizers.html.

Configuration details include Properties for these categories: General, Tokenizer, and Additional Properties.

Elasticsearch > Character Filters

The Character Filters page includes a list of Standard or Custom Character Filters.

Character Filters are used to preprocess the stream of characters before it is passed to the tokenizer.

A Character Filter receives the original text as a stream of characters and can transform the stream by adding, removing, or changing characters. For instance, a character filter could be used to convert Hindu-Arabic numerals (٠‎١٢٣٤٥٦٧٨‎٩‎) into their Arabic-Latin equivalents (0123456789), or to strip HTML elements like <b> from the stream.

For a full Character Filters reference for Elasticsearch, see https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-charfilters.html.

Configuration details include Properties for these categories: General, Char Filter, and Additional Properties.

Elasticsearch > Token Filters

The Token Filters page includes a list of Standard or Custom Token Filters.

Token Filters accept a stream of tokens from a tokenizer and can modify tokens (eg lowercasing), delete tokens (eg remove stopwords) or add tokens (eg synonyms).

For a full Token Filters reference for Elasticsearch, see https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-tokenfilters.html.

Configuration details include Properties for these categories: General, Token Filter, and Additional Properties.

Solr > Analyzers

The Analyzers page includes a list of Standard or Custom Analyzers that can be used to create search indices. An Analyzer examines the text of fields and generates a token stream.

For a full Analyzer reference for Solr, see https://solr.apache.org/guide/6_6/analyzers.html.

Configuration details include Properties for these categories: General and Analyzer.

Solr > Tokenizers

The Tokenizers page includes a list of Standard or Custom Tokenizers. Tokenizers are responsible for breaking field data into lexical units, or tokens.

For a full Tokenizer reference for Solr, see https://solr.apache.org/guide/6_6/tokenizers.html.

Configuration details include Properties for these categories: General, Tokenizer, and Additional Properties.

Solr > Character Filters

The Character Filters page includes a list of Standard or Custom Character Filters. Character Filters are components that pre-processes input characters.

For a full Character Filters reference for Solr, see https://solr.apache.org/guide/6_6/charfilterfactories.html.

Configuration details include Properties for these categories: General, Char Filter, and Additional Properties.

Solr > Token Filters

The Token Filters page includes a list of Standard or Custom Token Filters. Token Filters examine a stream of tokens and keep them, transform them or discard them, depending on the filter type being used.

For a full Token Filters reference for Solr, see https://solr.apache.org/guide/6_6/filter-descriptions.html.

Configuration details include Properties for these categories: General, Token Filter, and Additional Properties.





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