Introduction

pycsw is an OGC CSW server implementation written in Python.

Features

  • certified OGC Compliant and OGC Reference Implementation for both CSW 2.0.2 and CSW 3.0.0

  • harvesting support for WMS, WFS, WCS, WPS, WAF, CSW, SOS

  • implements INSPIRE Discovery Services 3.0

  • implements ISO Metadata Application Profile 1.0.0

  • implements FGDC CSDGM Application Profile for CSW 2.0

  • implements the Search/Retrieval via URL (SRU) search protocol

  • implements Full Text Search capabilities

  • implements OGC OpenSearch Geo and Time Extensions

  • implements Open Archives Initiative Protocol for Metadata Harvesting

  • supports ISO, Dublin Core, DIF, FGDC, Atom and GM03 metadata models

  • CGI or WSGI deployment

  • simple configuration

  • transactional capabilities (CSW-T)

  • flexible repository configuration

  • GeoNode connectivity

  • HHypermap connectivity

  • Open Data Catalog connectivity

  • CKAN connectivity

  • federated catalogue distributed searching

  • realtime XML Schema validation

  • extensible profile plugin architecture

Standards Support

Standard

Version(s)

OGC CSW

2.0.2, 3.0.0

OGC Filter

1.1.0, 2.0.0

OGC OWS Common

1.0.0, 2.0.0

OGC GML

3.1.1

OGC SFSQL

1.2.1

Dublin Core

1.1

SOAP

1.2

ISO 19115

2003

ISO 19139

2007

ISO 19119

2005

NASA DIF

9.7

FGDC CSDGM

1998

GM03

2.1

SRU

1.1

OGC OpenSearch

1.0

OAI-PMH

2.0

Supported Operations

Request

Optionality

Supported

HTTP method binding(s)

GetCapabilities

mandatory

yes

GET (KVP) / POST (XML) / SOAP

DescribeRecord

mandatory

yes

GET (KVP) / POST (XML) / SOAP

GetRecords

mandatory

yes

GET (KVP) / POST (XML) / SOAP

GetRecordById

optional

yes

GET (KVP) / POST (XML) / SOAP

GetRepositoryItem

optional

yes

GET (KVP)

GetDomain

optional

yes

GET (KVP) / POST (XML) / SOAP

Harvest

optional

yes

GET (KVP) / POST (XML) / SOAP

UnHarvest

optional

no

Transaction

optional

yes

POST (XML) / SOAP

Note

Asynchronous processing supported for GetRecords and Harvest requests (via csw:ResponseHandler)

Note

Supported Harvest Resource Types are listed in Transactions

Supported Output Formats

  • XML (default)

  • JSON

Supported Output Schemas

  • Dublin Core

  • ISO 19139

  • FGDC CSDGM

  • NASA DIF

  • Atom

  • GM03

Supported Sorting Functionality

  • ogc:SortBy

  • ascending or descending

  • aspatial (queryable properties)

  • spatial (geometric area)

Supported Filters

Geometry Operands

  • gml:Point

  • gml:LineString

  • gml:Polygon

  • gml:Envelope

Note

Coordinate transformations are supported

Spatial Operators

  • BBOX

  • Beyond

  • Contains

  • Crosses

  • Disjoint

  • DWithin

  • Equals

  • Intersects

  • Overlaps

  • Touches

  • Within

Logical Operators

  • Between

  • EqualTo

  • LessThanEqualTo

  • GreaterThan

  • Like

  • LessThan

  • GreaterThanEqualTo

  • NotEqualTo

  • NullCheck

Functions

  • length

  • lower

  • ltrim

  • rtrim

  • trim

  • upper