Examples of org.apache.commons.configuration2.SubsetConfiguration

Package org.apache.commons.configuration2

Examples of org.apache.commons.configuration2.SubsetConfiguration

org.apache.commons.configuration2.tree.ImmutableNode

A subset of another configuration. The new Configuration object contains every key from the parent Configuration that starts with prefix. The prefix is removed from the keys in the subset.

It is usually not necessary to use this class directly. Instead the {@link Configuration#subset(String)} method should be used,which will return a correctly initialized instance.
@author Emmanuel Bourg @version $Id: SubsetConfiguration.java 1624601 2014-09-12 18:04:36Z oheger $

     *
     * @return the new key object
     */
    private static DefaultConfigurationKey createConfigurationKey()
    {
        return new DefaultConfigurationKey(DefaultExpressionEngine.INSTANCE);
    }

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        assertTrue(prop instanceof Collection);
        assertEquals(5, ((Collection<?>) prop).size());


        for (int i = 0; i < NodeStructureHelper.fieldsLength(0); i++)
        {
            DefaultConfigurationKey key = createConfigurationKey();
            key.append("fields").append("field").appendIndex(i);
            key.append("name");
            assertEquals(NodeStructureHelper.field(0, i), subset.getProperty(key.toString()));
        }


        // test the subset on the second table
        assertTrue("subset is not empty", config.subset("tables.table(2)").isEmpty());

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            {
                return null;
            }


            Collection<String> result = new ArrayList<String>();
            DefaultConfigurationKey.KeyIterator it = new DefaultConfigurationKey(
                    AT_ENGINE, at).iterator();
            while (it.hasNext())
            {
                result.add(it.nextKey());
            }

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    public void process(Configuration config)
    {
        if (config != null)
        {
            DefaultExpressionEngine exprEngine = DefaultExpressionEngine.INSTANCE;
            DefaultConfigurationKey keyEmpty =
                    new DefaultConfigurationKey(exprEngine);
            DefaultConfigurationKey keyLast = keyEmpty;
            Set<String> keySet = new HashSet<String>();


            for (Iterator<String> it = config.getKeys(); it.hasNext();)
            {
                String key = it.next();
                if (keySet.contains(key))
                {
                    // this key has already been processed by openElements
                    continue;
                }
                DefaultConfigurationKey keyAct =
                        new DefaultConfigurationKey(exprEngine, key);
                closeElements(keyLast, keyAct);
                String elem = openElements(keyLast, keyAct, config, keySet);
                fireValue(elem, config.getProperty(key));
                keyLast = keyAct;
            }

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     * @param keyLast the last processed key
     * @param keyAct the actual key
     */
    protected void closeElements(DefaultConfigurationKey keyLast, DefaultConfigurationKey keyAct)
    {
        DefaultConfigurationKey keyDiff = keyAct.differenceKey(keyLast);
        Iterator<String> it = reverseIterator(keyDiff);
        if (it.hasNext())
        {
            // Skip first because it has already been closed by fireValue()
            it.next();

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     */
    protected String openElements(DefaultConfigurationKey keyLast, DefaultConfigurationKey keyAct,
            Configuration config, Set<String> keySet)
    {
        DefaultConfigurationKey.KeyIterator it = keyLast.differenceKey(keyAct).iterator();
        DefaultConfigurationKey k = keyLast.commonKey(keyAct);
        for (it.nextKey(); it.hasNext(); it.nextKey())
        {
            k.append(it.currentKey(true));
            elementStart(it.currentKey(true), config.getProperty(k.toString()));
            keySet.add(k.toString());
        }
        return it.currentKey(true);
    }

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     */
    public void process(Configuration config)
    {
        if (config != null)
        {
            DefaultExpressionEngine exprEngine = DefaultExpressionEngine.INSTANCE;
            DefaultConfigurationKey keyEmpty =
                    new DefaultConfigurationKey(exprEngine);
            DefaultConfigurationKey keyLast = keyEmpty;
            Set<String> keySet = new HashSet<String>();

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    {
        PropertiesConfiguration child = new PropertiesConfiguration();
        child.setListDelimiterHandler(new DefaultListDelimiterHandler(','));
        child.addProperty("test(a)", "1,2,3");
        config.addConfiguration(child);
        DefaultExpressionEngine engineQuery =
                new DefaultExpressionEngine(
                        new DefaultExpressionEngineSymbols.Builder(
                                DefaultExpressionEngineSymbols.DEFAULT_SYMBOLS)
                                .setIndexStart("<").setIndexEnd(">").create());
        config.setExpressionEngine(engineQuery);
        DefaultExpressionEngine engineConvert =
                new DefaultExpressionEngine(
                        new DefaultExpressionEngineSymbols.Builder(
                                DefaultExpressionEngineSymbols.DEFAULT_SYMBOLS)
                                .setIndexStart("[").setIndexEnd("]").create());
        config.setConversionExpressionEngine(engineConvert);
        assertEquals("Wrong property 1", "1", config.getString("test(a)<0>"));

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     */
    @Test
    public void testSetConversionExpressionEngineSynchronized()
    {
        SynchronizerTestImpl sync = setUpSynchronizerTest();
        config.setConversionExpressionEngine(new DefaultExpressionEngine(
                DefaultExpressionEngineSymbols.DEFAULT_SYMBOLS));
        sync.verify(Methods.BEGIN_WRITE, Methods.END_WRITE);
        checkCombinedRootNotConstructed();
    }

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        BufferedReader bufferedReader = new BufferedReader(in);
        Map<String, ImmutableNode.Builder> sectionBuilders = new LinkedHashMap<String, ImmutableNode.Builder>();
        ImmutableNode.Builder rootBuilder = new ImmutableNode.Builder();


        createNodeBuilders(bufferedReader, rootBuilder, sectionBuilders);
        ImmutableNode rootNode = createNewRootNode(rootBuilder, sectionBuilders);
        addNodes(null, rootNode.getChildren());
    }

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