groovy.lang.Closure Java Examples

private void breadthFirstRest(boolean preorder, int level, Closure c) {
    Stack<Tuple2<Object, Integer>> stack = new Stack<Tuple2<Object, Integer>>();
    List nextLevelChildren = preorder ? getDirectChildren() : DefaultGroovyMethods.reverse(getDirectChildren());
    while (!nextLevelChildren.isEmpty()) {
        List working = new NodeList(nextLevelChildren);
        nextLevelChildren = new NodeList();
        for (Object child : working) {
            if (preorder) {
                callClosureForNode(c, child, level);
            } else {
                stack.push(new Tuple2<Object, Integer>(child, level));
            }
            if (child instanceof Node) {
                Node childNode = (Node) child;
                List children = childNode.getDirectChildren();
                if (children.size() > 1 || (children.size() == 1 && !(children.get(0) instanceof String))) nextLevelChildren.addAll(preorder ? children : DefaultGroovyMethods.reverse(children));
            }
        }
        level++;
    }
    while (!stack.isEmpty()) {
        Tuple2<Object, Integer> next = stack.pop();
        callClosureForNode(c, next.getV1(), next.getV2());
    }
}
 

public DependencyResolver mavenRepo(Map<String, ?> args, Closure configClosure) {
    DeprecationLogger.nagUserOfReplacedMethod("RepositoryHandler.mavenRepo()", "maven()");
    Map<String, Object> modifiedArgs = new HashMap<String, Object>(args);
    if (modifiedArgs.containsKey("urls")) {
        List<?> urls = flattenCollections(modifiedArgs.remove("urls"));
        if (!urls.isEmpty()) {
            modifiedArgs.put("url", urls.get(0));
            List<?> extraUrls = urls.subList(1, urls.size());
            modifiedArgs.put("artifactUrls", extraUrls);
        }
    }

    MavenArtifactRepository repository = repositoryFactory.createMavenRepository();
    ConfigureUtil.configureByMap(modifiedArgs, repository);
    DependencyResolver resolver = repositoryFactory.toResolver(repository);
    ConfigureUtil.configure(configClosure, resolver);
    addRepository(repositoryFactory.createResolverBackedRepository(resolver), "mavenRepo");
    return resolver;
}
 

/**
 * Resumes this program by either returning the value from {@link Continuable#suspend(Object)} or
 * throwing an exception
 */
public Outcome run0(final Outcome cn, List<Class> categories) {
    return GroovyCategorySupport.use(categories, new Closure<Outcome>(null) {
        @Override
        public Outcome call() {
            Next n = cn.resumeFrom(e,k);

            while(n.yield==null) {
                if (interrupt!=null) {
                    // TODO: correctly reporting a source location requires every block to have the line number
                    n = new Next(new ThrowBlock(UNKNOWN, new ConstantBlock(interrupt), true),n.e,n.k);
                    interrupt = null;
                }
                n = n.step();
            }

            e = n.e;
            k = n.k;

            return n.yield;
        }
    });
}
 

/**
 * @deprecated since 0.11.0; explicit groovy utilities/support will be deleted.
 */
@Deprecated
public static <T,V> Task<V> attributePostProcessedWhenReady(Entity source, AttributeSensor<T> sensor, Closure<Boolean> ready, Closure<V> postProcess) {
    Predicate<? super T> readyPredicate = (ready != null) ? GroovyJavaMethods.predicateFromClosure(ready) : JavaGroovyEquivalents.groovyTruthPredicate();
    Function<? super T, V> postProcessFunction = GroovyJavaMethods.<T,V>functionFromClosure(postProcess);
    return attributePostProcessedWhenReady(source, sensor, readyPredicate, postProcessFunction);
}
 

public TaskInternal createTask(Map<String, ?> args) {
    Map<String, Object> actualArgs = new HashMap<String, Object>(args);
    checkTaskArgsAndCreateDefaultValues(actualArgs);

    String name = actualArgs.get(Task.TASK_NAME).toString();
    if (!GUtil.isTrue(name)) {
        throw new InvalidUserDataException("The task name must be provided.");
    }

    Class<? extends TaskInternal> type = (Class) actualArgs.get(Task.TASK_TYPE);
    Boolean generateSubclass = Boolean.valueOf(actualArgs.get(GENERATE_SUBCLASS).toString());
    TaskInternal task = createTaskObject(project, type, name, generateSubclass);

    Object dependsOnTasks = actualArgs.get(Task.TASK_DEPENDS_ON);
    if (dependsOnTasks != null) {
        task.dependsOn(dependsOnTasks);
    }
    Object description = actualArgs.get(Task.TASK_DESCRIPTION);
    if (description != null) {
        task.setDescription(description.toString());
    }
    Object group = actualArgs.get(Task.TASK_GROUP);
    if (group != null) {
        task.setGroup(group.toString());
    }
    Object action = actualArgs.get(Task.TASK_ACTION);
    if (action instanceof Action) {
        Action<? super Task> taskAction = (Action<? super Task>) action;
        task.doFirst(taskAction);
    } else if (action != null) {
        Closure closure = (Closure) action;
        task.doFirst(closure);
    }

    return task;
}
 

public DefaultManifest from(Object mergePaths, Closure closure) {
    DefaultManifestMergeSpec mergeSpec = new DefaultManifestMergeSpec();
    mergeSpec.from(mergePaths);
    manifestMergeSpecs.add(mergeSpec);
    ConfigureUtil.configure(closure, mergeSpec);
    return this;
}
 

protected void addHandler(MessageType messageType, String event, String parameter, Closure<?> closure) {
   IpcdDispatchMatcher matcher = new IpcdDispatchMatcher();
   matcher.setType(messageType);
   matcher.setEvent(event);
   matcher.setParameter(parameter);
   matcher.setHandler(DriverBinding.wrapAsHandler(closure));
   binding.getBuilder().addEventMatcher(matcher);
}
 

public ClientModule createModule(Object dependencyNotation, Closure configureClosure) {
    ClientModule clientModule = clientModuleNotationParser.parseNotation(dependencyNotation);
    ModuleFactoryDelegate moduleFactoryDelegate = new ModuleFactoryDelegate(clientModule, this);
    moduleFactoryDelegate.prepareDelegation(configureClosure);
    if (configureClosure != null) {
        configureClosure.call();
    }
    return clientModule;
}
 

private Closure<String> createClosureForFindOrFindAll() {
    return new Closure<String>(this) {
        @Override
        public String call(Object arguments) {
            assertTrue(arguments instanceof List);
            return ((List) arguments).get(2).toString();
        }

        @Override
        public String call(Object... args) {
            return call((Object) args);
        }
    };
}
 

/**
 * Groovy point of entry to build a contract. Left for backward compatibility reasons.
 * @param closure function to manipulate the contract
 * @return manipulated contract
 */
public static Contract make(@DelegatesTo(Contract.class) Closure closure) {
	Contract dsl = new Contract();
	closure.setDelegate(dsl);
	closure.call();
	Contract.assertContract(dsl);
	return dsl;
}
 

/**
 * Filter the lines from this Reader, and return a Writable which can be
 * used to stream the filtered lines to a destination.  The closure should
 * return <code>true</code> if the line should be passed to the writer.
 *
 * @param reader  this reader
 * @param closure a closure used for filtering
 * @return a Writable which will use the closure to filter each line
 *         from the reader when the Writable#writeTo(Writer) is called.
 * @since 1.0
 */
public static Writable filterLine(Reader reader, @ClosureParams(value=SimpleType.class, options="java.lang.String") final Closure closure) {
    final BufferedReader br = new BufferedReader(reader);
    return new Writable() {
        public Writer writeTo(Writer out) throws IOException {
            BufferedWriter bw = new BufferedWriter(out);
            String line;
            BooleanClosureWrapper bcw = new BooleanClosureWrapper(closure);
            while ((line = br.readLine()) != null) {
                if (bcw.call(line)) {
                    bw.write(line);
                    bw.newLine();
                }
            }
            bw.flush();
            return out;
        }

        public String toString() {
            Writer buffer = new StringBuilderWriter();
            try {
                writeTo(buffer);
            } catch (IOException e) {
                throw new StringWriterIOException(e);
            }
            return buffer.toString();
        }
    };
}
 

public <U extends T> void registerFactory(Class<U> type, final Closure<? extends U> factory) {
    registerFactory(type, new NamedDomainObjectFactory<U>() {
        public U create(String name) {
            return factory.call(name);
        }
    });
}
 

public CopySpec filter(final Closure closure) {
    actions.add(new Action<FileCopyDetails>() {
        public void execute(FileCopyDetails fileCopyDetails) {
            fileCopyDetails.filter(closure);
        }
    });
    return this;
}
 

public void keepclassmembers(Map     keepClassSpecificationArgs,
                             Closure classMembersClosure)
throws ParseException
{
    configuration.keep =
        extendClassSpecifications(configuration.keep,
        createKeepClassSpecification(false,
                                     false,
                                     false,
                                     keepClassSpecificationArgs,
                                     classMembersClosure));
}
 

public TestFramework testFramework(Closure testFrameworkConfigure) {
    if (testFramework == null) {
        useJUnit(testFrameworkConfigure);
    }

    return testFramework;
}
 

protected void setDefaultLocale(Locale locale) throws Exception {
    assertThat(locale, is(notNullValue()));

    ConfigurationAdmin configAdmin = (ConfigurationAdmin) getService(
            Class.forName("org.osgi.service.cm.ConfigurationAdmin"));
    assertThat(configAdmin, is(notNullValue()));

    LocaleProvider localeProvider = (LocaleProvider) getService(
            Class.forName("org.eclipse.smarthome.core.i18n.LocaleProvider"));
    assertThat(localeProvider, is(notNullValue()));

    Configuration config = configAdmin.getConfiguration("org.eclipse.smarthome.core.i18nprovider", null);
    assertThat(config, is(notNullValue()));

    Dictionary<String, Object> properties = config.getProperties();
    if (properties == null) {
        properties = new Hashtable<>();
    }

    properties.put("language", locale.getLanguage());
    properties.put("script", locale.getScript());
    properties.put("region", locale.getCountry());
    properties.put("variant", locale.getVariant());

    config.update(properties);

    waitForAssert(new Closure<Object>(null) {
        private static final long serialVersionUID = -5083904877474902686L;

        public Object doCall() {
            assertThat(localeProvider.getLocale(), is(locale));
            return null;
        }
    });
}
 

public SourceSet java(Closure configureClosure) {
    ConfigureUtil.configure(configureClosure, getJava());
    return this;
}
 

public void getAttributes(Closure<?> closure) {
   builder.addGetAttributesProvider(closure);
}
 

private void executeRuleClosures(ModuleComponentResolveMetaData metadata, ComponentMetadataDetails details) {
    for (Closure<?> closure : ruleClosures) {
        executeRuleClosure(metadata, details, closure);
    }
}
 

public MavenPom addFilter(String name, Closure filter) {
    return pomFilterContainer.addFilter(name, filter);
}
 

public void repositories(Closure configureClosure) {
    ConfigureUtil.configure(configureClosure, getRepositories());
}
 

public Spec<T> parseNotation(Object notation) throws UnsupportedNotationException {
    if (notation instanceof Closure) {
        return Specs.convertClosureToSpec((Closure) notation);
    }
    throw new UnsupportedNotationException(notation);
}
 

public FileCollection fileCollection(Closure dependencySpecClosure) {
    return new ConfigurationFileCollection(dependencySpecClosure);
}
 

public void allDependencies(Closure closure) {
    resolutionResult.allDependencies(closure);
}
 

public ExecResult exec(Closure<CliExecSpec> closure) {
	CliExecSpec spec = new CliExecSpec();
	project.configure(spec, closure);
	return exec(spec);
}
 

public void whenObjectAdded(Closure action) {
    whenObjectAdded(toAction(action));
}
 

/**
 * {@inheritDoc}
 */
public AbstractCopyTask eachFile(Closure closure) {
    getMainSpec().eachFile(closure);
    return this;
}
 

public void settingsEvaluated(Closure closure) {
    buildListenerBroadcast.add(new ClosureBackedMethodInvocationDispatch("settingsEvaluated", closure));
}
 

public PatternSet include(Closure closure) {
    include(Specs.<FileTreeElement>convertClosureToSpec(closure));
    return this;
}
 

public FileCollection filter(Closure filterClosure) {
    return filter(Specs.convertClosureToSpec(filterClosure));
}