Given a Configuration object, how can I create a PropertiesConfiguration object?

Question

I have a method that returns a Configuration object. I need to instantiate a PropertiesConfig object to save this to disk. How can I do so?

Read the "saving" section here: commons.apache.org/proper/commons-configuration/… — Nir Alfasi
– Nir Alfasi, Commented Aug 6, 2013 at 1:04
Thanks - I've read that, but the Config object I have is actually a CombinedConfiguration, and has no save method. I need to 'converet' it to a properties config and save it as a properties file. — rjurney
– rjurney, Commented Aug 6, 2013 at 23:50

sasha.j · Accepted Answer · 2013-08-07 03:46:43Z

2

Have you tried using copy method? This example works for me:

    XMLConfiguration conf1 = new XMLConfiguration("table1.xml");
    XMLConfiguration conf2 = new XMLConfiguration("table2.xml");

    // Create and initialize the node combiner
    NodeCombiner combiner = new UnionCombiner();
    combiner.addListNode("table");  // mark table as list node
                // this is needed only if there are ambiguities

    // Construct the combined configuration
    CombinedConfiguration cc = new CombinedConfiguration(combiner);
    cc.addConfiguration(conf1, "tab1");
    cc.addConfiguration(conf2);

    PropertiesConfiguration config = new PropertiesConfiguration("usergui.properties");

    config.copy(cc);
    config.save();

answered Aug 7, 2013 at 3:46

sasha.j

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