Examples of org.apache.commons.configuration2.builder.BuilderConfigurationWrapperFactory

Package org.apache.commons.configuration2.builder

Examples of org.apache.commons.configuration2.builder.BuilderConfigurationWrapperFactory

org.apache.commons.configuration2.io.FileHandler

A class that allows the creation of configuration objects wrapping a {@link ConfigurationBuilder}.

Using this class special {@code Configuration} proxies can be created thatdelegate all method invocations to another {@code Configuration} obtainedfrom a {@code ConfigurationBuilder}. For instance, if there is a configuration {@code c} wrapping the builder {@code builder}, the call {@code c.getString(myKey)} is transformed to{@code builder.getConfiguration().getString(myKey)}.

There are multiple use cases for such a constellation. One example is that client code can continue working with {@code Configuration} objects whileunder the hood builders are used. Another example is that dynamic configurations can be realized in a transparent way: a client holds a single configuration (proxy) object, but the underlying builder may return a different data object on each call.
@version $Id: BuilderConfigurationWrapperFactory.java 1624601 2014-09-12 18:04:36Z oheger $ @since 2.0

    public void setParentInterpolator(ConfigurationInterpolator parent)
    {
        boolean success;
        do
        {
            ConfigurationInterpolator ciOld = getInterpolator();
            ConfigurationInterpolator ciNew =
                    (ciOld != null) ? ciOld : new ConfigurationInterpolator();
            ciNew.setParentInterpolator(parent);
            success = interpolator.compareAndSet(ciOld, ciNew);
        } while (!success);
    }

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     * @since 2.0
     */
    protected void cloneInterpolator(AbstractConfiguration orgConfig)
    {
        interpolator = new AtomicReference<ConfigurationInterpolator>();
        ConfigurationInterpolator orgInterpolator = orgConfig.getInterpolator();
        List<Lookup> defaultLookups = orgInterpolator.getDefaultLookups();
        Lookup lookup = findConfigurationLookup(orgInterpolator, orgConfig);
        if (lookup != null)
        {
            defaultLookups.remove(lookup);
        }


        installInterpolator(orgInterpolator.getLookups(), defaultLookups);
    }

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    }


    @Override
    public <T> T to(Object src, Class<T> targetCls, ConfigurationInterpolator ci)
    {
        ConfigurationInterpolator interpolator = fetchInterpolator(ci);
        return convert(interpolator.interpolate(src), targetCls, interpolator);
    }

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        if (isEmptyElement(src))
        {
            return Array.newInstance(elemClass, 0);
        }


        ConfigurationInterpolator interpolator = fetchInterpolator(ci);
        return elemClass.isPrimitive() ? toPrimitiveArray(src, elemClass,
                interpolator) : toObjectArray(src, elemClass, interpolator);
    }

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    @Override
    public final void installInterpolator(
            Map<String, ? extends Lookup> prefixLookups,
            Collection<? extends Lookup> defLookups)
    {
        InterpolatorSpecification spec =
                new InterpolatorSpecification.Builder()
                        .withPrefixLookups(prefixLookups)
                        .withDefaultLookups(defLookups)
                        .withDefaultLookup(new ConfigurationLookup(this))
                        .create();

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        parent.addProperty("tablespaces.tablespace.name", "default");
        parent.addProperty("tablespaces.tablespace(-1).name", "test");
        parent.addProperty("tables.table(0).var", "${brackets:x}");


        ConfigurationInterpolator interpolator = parent.getInterpolator();
        interpolator.registerLookup("brackets", new Lookup() {


            public String lookup(String key) {
                return "(" + key + ")";
            }

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        do
        {
            ConfigurationInterpolator ciOld = getInterpolator();
            ConfigurationInterpolator ciNew =
                    (ciOld != null) ? ciOld : new ConfigurationInterpolator();
            Lookup confLookup = findConfigurationLookup(ciNew);
            if (confLookup == null)
            {
                confLookup = new ConfigurationLookup(this);
            }
            else

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    protected void cloneInterpolator(AbstractConfiguration orgConfig)
    {
        interpolator = new AtomicReference<ConfigurationInterpolator>();
        ConfigurationInterpolator orgInterpolator = orgConfig.getInterpolator();
        List<Lookup> defaultLookups = orgInterpolator.getDefaultLookups();
        Lookup lookup = findConfigurationLookup(orgInterpolator, orgConfig);
        if (lookup != null)
        {
            defaultLookups.remove(lookup);
        }

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    @Before
    public void setUp() throws Exception
    {
        // any concrete class will do
        PropertiesConfiguration c = new PropertiesConfiguration();
        new FileHandler(c).load(ConfigurationAssert
                .getTestFile("test.properties"));
        sync = new SynchronizerTestImpl();
        c.setSynchronizer(sync);
        config = c;
    }

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    @Before
    public void setUp() throws Exception
    {
        CompositeConfiguration cc = new CompositeConfiguration();
        PropertiesConfiguration pc = new PropertiesConfiguration();
        FileHandler handler = new FileHandler(pc);
        handler.setFileName(testProperties);
        handler.load();
        cc.addConfiguration(pc);
        conf = cc;
        nonStringTestHolder.setConfiguration(conf);
    }

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