Retrieve themes present in a map request or frame

Question

Hi all,
I wanted to know if its possible to retrieve a list of the manually added jdbc themes that are present in a certain map request or map frame? If possible how do we achieve this.
Thanks in advance,
Avinash

Answer 1

Hi Avinash,
MapViewer configuration file (mapViewerConfig.xml located at MapViewer's WEB-INF/conf directory) has a section to set the logging level. Setting it to finest, you can get additional information in the log file. Look for this piece in the configuration file, uncomment it and set log_level to "finest".
    <logging log_level="finest" log_thread_name="false"
             log_time="true">
       <log_output name="System.err" />
       <log_output name="../log/mapviewer.log" />
    </logging>Save the file and start MapViewer again. Run your request, and get from the log file the information generated. You should have the map request and information about the processing of the request themes. Post this information.
I just executed a quick test, using the MVDEMO data, and I did get the correct result for a point theme. You can try it, if you have the MVDEMO data set installed. In this code you should get null for array of theme names. If you increase the size (for example 4.0 to 15.0, you may start to get THEME_DEMO_BIGCITIES in the response themes).
    mapViewer.setMapTitle("Test java");
    mapViewer.deleteAllThemes();
    mapViewer.setCenterAndSize(-98.159,35.936,4.0);
    mapViewer.addPredefinedTheme("THEME_DEMO_BIGCITIES");
    boolean response = mapViewer.run();
    String []respthemes = mapViewer.getMapResponseThemeNames();
    ...Joao