PDF Reporting

c2cgeoportal offers a pdfreport webservice that can be used to generate advanced PDF reports about a given feature.

It is based upon Mapfish Print version 3 and Jasper Reports.

The webservice is called using the following URL schema: https://<host><entrypoint>/pdfreport/<layername>/<featureid>.

Configuration

The service is configured in the main vars.yaml file of the project, as shown in the following example:

vars:
    ...
    pdfreport:
        print_url: '{print_url}'
        layer-defaults: &pdfreport-layer-default
            ogcserver: source for image/png
            check_credentials: True
            srs: EPSG:21781
            map:
                backgroundlayers: [grp_ly_tilegenerierung_landeskarte]
                imageformat: image/png
        map-defaults: &pdfreport-map-default
            backgroundlayers: []
            imageformat: image/png
            zoomType: extent
            minScale: 1000
            style:
                fillColor: red
                fillOpacity: 0.2
                symbolizers:
                -   strokeColor: red
                    strokeWidth: 1
                    type: point
                    pointRadius: 10
        layers:
            ly_a020_belastete_standorte_point:
                <<: *pdfreport-layer-default
                map:
                    <<: *pdfreport-map-default
                    backgroundlayers:
                        - grp_ly_tilegenerierung_landeskarte
                        - ly_a020_belastete_standorte_point
                    imageformat: image/jpeg
            some_template_with_no_map:
                <<: *pdfreport-layer-default
                spec:
                    layout: some_template_name
                    outputFormat: pdf
                    attributes:
                        ids: %(ids)s
            some_template_with_multi_map:
                <<: *pdfreport-layer-default
                maps:
                    -   <<: *pdfreport-map-default
                        backgroundlayers:
                            - grp_ly_tilegenerierung_landeskarte
                    -   <<: *pdfreport-map-default
                        backgroundlayers:
                            - ly_a020_belastete_standorte_point
update_paths:
    - pdfreport

Regarding the configuration parameters,

• print_url is the local URL of the MapFish Print instance.
• defaults contains the default values of parameters not provided explicitly for a given layer.
• layers is an optional per-layer list of settings specific to the listed layers. The entries of the list are the layernames provided as argument of the webservice. If a layer is not listed, the default parameters above are used.

defaults and layers-specific parameters are:

• ogcserver: the name of OGC server to use.
• check_credentials: boolean, defines whether layer credentials are checked before generating the report. Defaults to True.
• srs: projection code (required when showing the map).
• spec: optional template used to build the spec argument sent to the MapFish Print webapp.
• map: optional, the map configuration.
• maps: optional, a list of map configurations.

The map configuration can contains the following:

• backgroundlayers: string containing a comma-separated list of WMS layers that should be displayed on the map. If the current layer must also be displayed, it should be added to the list. Please note that layernames must be embedded in double-quotes (“). Defaults to "".

• imageformat: format of the generated map. Defaults to image/png.

• zoomType: The type of zoom, default is extent.

• minScale: The minimum zoom scale, default is 1000.

• style: The style used, default is:

  fillColor: red
  fillOpacity: 0.2
  symbolizers:
  - strokeColor: red
    strokeWidth: 1
    type: point
    pointRadius: 10
  

The variables are passed to the spec template using the %(<variable name>)s syntax:

• layername: name of the layer.
• ids: JSON representation of the features id.
• srs: projection code.
• mapserv_url: URL of the MapServer proxy.
• vector_request_url: URL of the WFS GetFeature request retrieving the feature geometry in GML.

Configuration of the reports

If you use the ids in an SQL query, you should use $X{IN, <column_name>, $P{ids}} to avoid SQL injection, see also the JasperReports documentation.