Observation store configuration (workspace/datasources/observation)

Contents

Basics
Schema location
Configuration details
1. Continuous observation store
  1. ContSQL example
2. Simple observation store
  1. SimpleSQL example
Further workspace configuration

First ideas on the configuration concept for all types of datasources and datastores are described in the deegree3/DatastoreConfigurationConcepts.

1. Basics

Observation store configurations are defined independant of the application using it.
Each observation store configuration may be used by multiple deegree 3 applications.
Each observation store configuration has its own configuration file.
Each configuration file contains exactly one observation store configuration.
Observation store configuration files are located in the datasources/observation/ directory of the deegree workspace. See the workspace directory layout for details.
The name of the configuration file (without the file ending) determins the identifier for this observation store configuration.
Configuration files need to refer to a specific schema version.

2. Schema location

The schemas for defining deegree 3 observation store data sources may be found at http://schemas.deegree.org/datasource/observation/. Each kind of observation store has its own schema definition. It is mandatory to refer to a specific version of the schemas, as the schema may change over time.

3. Configuration details

3.1. Continuous observation store

Current Version ContSQL: 3.0.0 (valid since 2010-11-15)

3.1.1. ContSQL example

<?xml version="1.0" encoding="UTF-8"?>
<ContinuousObservationStore
  configVersion="3.0.0"
  xmlns="http://www.deegree.org/datasource/observation/contsql"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.deegree.org/datasource/observation/contsql http://schemas.deegree.org/datasource/observation/contsql/3.0.0/contsql.xsd">

  <!-- [1] Identifier of the JDBC connection -->
  <JDBCConnId>postgres</JDBCConnId>

  <!-- [1] Name of table with observations -->
  <Table>earthquake_data_istambul</Table>

  <!-- [1] Time Interval at which observations are recorded -->
  <TimeInterval uom="seconds">0.5</TimeInterval>

  <!-- [0..n] Column definitions -->

  <!-- [0..n] Option definitions -->

  <!-- [1..n] Property definitions -->
  <Property href="urn:ogc:def:phenomenon:OGC:earthquake_magnitude">
    <Column name="magnitude" type="property"></Column>
    <Option name="uom" value="richter"></Option>
  </Property>
</ContinuousObservationStore>

3.2. Simple observation store

Current Version SimpleSQL: 3.0.0 (valid since 2010-11-15)

3.2.1. SimpleSQL example

<?xml version="1.0" encoding="UTF-8"?>
<SimpleObservationStore
  configVersion="3.0.0"
  xmlns="http://www.deegree.org/datasource/observation/simplesql"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.deegree.org/datasource/observation/simplesql http://schemas.deegree.org/datasource/observation/simplesql/3.0.0/simplesql.xsd">

  <!-- [1] Identifier of the JDBC connection -->
  <JDBCConnId>derby</JDBCConnId>

  <!-- [1] Name of table with observations -->
  <Table>weather_data_bonn</Table>

  <!-- [0..n] Column definitions -->

  <!-- [0..n] Option definitions -->

  <!-- [1..n] Property definitions -->
  <Property href="urn:ogc:def:phenomenon:OGC:temperature_average">
    <Column name="temp_avg" type="property"></Column>
    <Option name="uom" value="celsius"></Option>
  </Property>
</SimpleObservationStore>

4. Further workspace configuration

For other parts of the workspace configuration please consult the following pages:

CategoryDeegree3 CategoryWorkspaceConfiguration