Examples of org.apache.commons.configuration2.interpol.InterpolatorSpecification

Package org.apache.commons.configuration2.interpol

Examples of org.apache.commons.configuration2.interpol.InterpolatorSpecification

org.apache.commons.configuration2.io.FileHandler
A simple value class defining a {@link ConfigurationInterpolator}.

Objects of this class can be used for creating new {@code ConfigurationInterpolator} instances; they contain all requiredproperties. It is either possible to set a fully initialized {@code ConfigurationInterpolator} directly which can be used as is.Alternatively, some or all properties of an instance to be newly created can be set. These properties include
- a map with {@code Lookup} objects associated with a specific prefix
- a collection with default {@code Lookup} objects (without a prefix)
- a parent {@code ConfigurationInterpolator}
When setting up a configuration it is possible to define the {@code ConfigurationInterpolator} in terms of this class. The configurationwill then either use the {@code ConfigurationInterpolator} instanceexplicitly defined in the {@code InterpolatorSpecification} instance orcreate a new one.

Instances are not created directly, but using the nested {@code Builder}class. They are then immutable.
@version $Id: InterpolatorSpecification.java 1624601 2014-09-12 18:04:36Z oheger $ @since 2.0

    @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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        Collection<Lookup> defLookups = Collections.singleton(l3);
        params.setParentInterpolator(parent);
        params.setPrefixLookups(prefixLookups);
        params.setDefaultLookups(defLookups);
        Map<String, Object> map = params.getParameters();
        InterpolatorSpecification spec =
                BasicBuilderParameters.fetchInterpolatorSpecification(map);
        assertSame("Wrong parent", parent, spec.getParentInterpolator());
        assertEquals("Wrong prefix lookups", prefixLookups,
                spec.getPrefixLookups());
        assertEquals("Wrong number of default lookups", 1, spec
                .getDefaultLookups().size());
        assertTrue("Wrong default lookup", spec.getDefaultLookups()
                .contains(l3));
    }

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    public void testFetchInterpolatorSpecificationWithInterpolator()
    {
        ConfigurationInterpolator ci =
                EasyMock.createMock(ConfigurationInterpolator.class);
        params.setInterpolator(ci);
        InterpolatorSpecification spec =
                BasicBuilderParameters.fetchInterpolatorSpecification(params
                        .getParameters());
        assertSame("Wrong interpolator", ci, spec.getInterpolator());
        assertNull("Got a parent", spec.getParentInterpolator());
    }

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     * Tests that an empty map does not cause any problems.
     */
    @Test
    public void testFetchInterpolatorSpecificationEmpty()
    {
        InterpolatorSpecification spec =
                BasicBuilderParameters.fetchInterpolatorSpecification(params
                        .getParameters());
        assertNull("Got an interpolator", spec.getInterpolator());
        assertTrue("Got lookups", spec.getDefaultLookups().isEmpty());
    }

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     *
     * @return the {@code ConfigurationInterpolator} to be used
     */
    protected ConfigurationInterpolator createInterpolator()
    {
        InterpolatorSpecification spec =
                BasicBuilderParameters
                        .fetchInterpolatorSpecification(getParameters());
        return ConfigurationInterpolator.fromSpecification(spec);
    }

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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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