Transformers transform data to and from various formats.

The current Transformers do not support Non-Western Characters (e.g. Hebrew). If the data being transformed contains these characters, they may not be displayed properly. For example, the characters after transformation are not displayed properly (e.g. the word will show up as squares). In other words, Transformers only work for UTF-8. It is recommend not to use international character sets.

Communication Diagram

The Catalog includes the following types of Transformers:

XSLT Transformer — allows developers to create light-weight Query Response Transformers and Metacard Transformers using only a bundle header and XSLT files.
Included Input Transformers — transforms raw data (text/binary) into a Metacard
- Tika Input Transformer — transforms a Microsoft Office, PDF, and OpenOffice documents into a Catalog Metacard
- GeoJSON Input Transformer — transforms GeoJSON into a Catalog Metacard
Included Metacard Transformers — transforms a Metacard into a text/binary format
- XML Metacard Transformer — transforms a Metacard into an XML formatted document
- HTML Metacard Transformer — transforms a Metacard into an HTML formatted document
- Thumbnail Metacard Transformer — retrieves the thumbnail bytes of a Metacard
- GeoJSON Metacard Transformer — transforms a Metacard into GeoJSON text
- Metadata Metacard Transformer — returns the Metacard.METADATA attribute value when given a Metacard.
- Resource Metacard Transformer — retrieves the resource bytes of a Metacard product
Included Query Response Transformers — transforms a query response containing multiple Metacards into a text/binary format
- XML Query Response Transformer — transforms a Query Response into an XML formatted document
- Atom Query Response Transformer — transforms a Query Response into an Atom 1.0 http://tools.ietf.org/html/rfc4287 feed
- SearchUI — a QueryResponseTransformer that not only provides results in a html format but also provides a convenient, simple querying user interface

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