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Split URL

The SPLIT-URL directive splits a URL into protocol, authority, host, port, path, filename, and query.

Syntax

split-url <column>

The <column> is a column containing the URL.

Usage Notes

The SPLIT-URL directive will parse the URL into its constituents. Upon splitting the URL, the directive creates seven new columns by appending to the original column name:

  • column_protocol
  • column_authority
  • column_host
  • column_port
  • column_path
  • column_filename
  • column_query

If the URL cannot be parsed correctly, an exception is throw. If the URL column does not exist, columns with a null value are added to the record.

Examples

Using this record as an example:

{
  "url": "http://example.com:80/docs/books/tutorial/index.html?name=networking#DOWNLOADING"
}

Applying this directive:

split-url url

would result in this record:

{
  "url": "http://example.com:80/docs/books/tutorial/index.html?name=networking#DOWNLOADING",
  "url_protocol": "http",
  "url_authority": "example.com:80",
  "url_host": "example.com",
  "url_port": 80,
  "url_path": "/docs/books/tutorial/index.html",
  "url_filename": "/docs/books/tutorial/index.html?name=networking",
  "url_query": "name=networking"
}

When the URL field in the record is null:

{
  "url": null
}

the directive will generate:

{
  "url": null,
  "url_protocol": null,
  "url_authority": null,
  "url_host": null,
  "url_port": null,
  "url_path": null,
  "url_filename": null,
  "url_query": null
}