Example usage for org.apache.commons.lang3 ClassUtils isInnerClass

Introduction

In this page you can find the example usage for org.apache.commons.lang3 ClassUtils isInnerClass.

Prototype

public static boolean isInnerClass(final Class<?> cls) 

Source Link

Document

Is the specified class an inner class or static nested class.

Usage

From source file:org.datavec.api.transform.TransformProcess.java

private static ObjectMapper reinitializeMapperWithSubtypes(ObjectMapper mapper) {
    //Register concrete subtypes for JSON serialization

    List<Class<?>> classes = Arrays.<Class<?>>asList(Transform.class, Condition.class, Filter.class,
            IReducer.class);
    List<String> classNames = new ArrayList<>(6);
    for (Class<?> c : classes)
        classNames.add(c.getName());//from   w ww.j  a v  a 2s. c  o m

    // First: scan the classpath and find all instances of the 'baseClasses' classes

    if (subtypesClassCache == null) {
        List<Class<?>> interfaces = Arrays.<Class<?>>asList(Transform.class, Condition.class, Filter.class,
                IReducer.class);
        List<Class<?>> classesList = Arrays.<Class<?>>asList();

        Collection<URL> urls = ClasspathHelper.forClassLoader();
        List<URL> scanUrls = new ArrayList<>();
        for (URL u : urls) {
            String path = u.getPath();
            if (!path.matches(".*/jre/lib/.*jar")) { //Skip JRE/JDK JARs
                scanUrls.add(u);
            }
        }

        Reflections reflections = new Reflections(
                new ConfigurationBuilder().filterInputsBy(new FilterBuilder().exclude("^(?!.*\\.class$).*$") //Consider only .class files (to avoid debug messages etc. on .dlls, etc
                        //Exclude the following: the assumption here is that no custom functionality will ever be present
                        // under these package name prefixes.
                        .exclude("^org.nd4j.*").exclude("^org.bytedeco.*") //JavaCPP
                        .exclude("^com.fasterxml.*")//Jackson
                        .exclude("^org.apache.*") //Apache commons, Spark, log4j etc
                        .exclude("^org.projectlombok.*").exclude("^com.twelvemonkeys.*").exclude("^org.joda.*")
                        .exclude("^org.slf4j.*").exclude("^com.google.*").exclude("^org.reflections.*")
                        .exclude("^ch.qos.*") //Logback
                ).addUrls(scanUrls).setScanners(new DataVecSubTypesScanner(interfaces, classesList)));
        org.reflections.Store store = reflections.getStore();

        Iterable<String> subtypesByName = store.getAll(DataVecSubTypesScanner.class.getSimpleName(),
                classNames);

        Set<? extends Class<?>> subtypeClasses = Sets.newHashSet(ReflectionUtils.forNames(subtypesByName));
        subtypesClassCache = new HashSet<>();
        for (Class<?> c : subtypeClasses) {
            if (Modifier.isAbstract(c.getModifiers()) || Modifier.isInterface(c.getModifiers())) {
                //log.info("Skipping abstract/interface: {}",c);
                continue;
            }
            subtypesClassCache.add(c);
        }
    }

    //Second: get all currently registered subtypes for this mapper
    Set<Class<?>> registeredSubtypes = new HashSet<>();
    for (Class<?> c : classes) {
        AnnotatedClass ac = AnnotatedClass.construct(c,
                mapper.getSerializationConfig().getAnnotationIntrospector(), null);
        Collection<NamedType> types = mapper.getSubtypeResolver().collectAndResolveSubtypes(ac,
                mapper.getSerializationConfig(), mapper.getSerializationConfig().getAnnotationIntrospector());
        for (NamedType nt : types) {
            registeredSubtypes.add(nt.getType());
        }
    }

    //Third: register all _concrete_ subtypes that are not already registered
    List<NamedType> toRegister = new ArrayList<>();
    for (Class<?> c : subtypesClassCache) {
        //Check if it's concrete or abstract...
        if (Modifier.isAbstract(c.getModifiers()) || Modifier.isInterface(c.getModifiers())) {
            //log.info("Skipping abstract/interface: {}",c);
            continue;
        }

        if (!registeredSubtypes.contains(c)) {
            String name;
            if (ClassUtils.isInnerClass(c)) {
                Class<?> c2 = c.getDeclaringClass();
                name = c2.getSimpleName() + "$" + c.getSimpleName();
            } else {
                name = c.getSimpleName();
            }
            toRegister.add(new NamedType(c, name));
            if (log.isDebugEnabled()) {
                for (Class<?> baseClass : classes) {
                    if (baseClass.isAssignableFrom(c)) {
                        log.debug("Registering class for JSON serialization: {} as subtype of {}", c.getName(),
                                baseClass.getName());
                        break;
                    }
                }
            }
        }
    }

    mapper.registerSubtypes(toRegister.toArray(new NamedType[toRegister.size()]));
    //Recreate the mapper (via copy), as mapper won't use registered subtypes after first use
    mapper = mapper.copy();
    return mapper;
}

---

From source file:org.deeplearning4j.nn.conf.ComputationGraphConfiguration.java

/**
 * Create a computation graph configuration from json
 *
 * @param json the neural net configuration from json
 * @return {@link org.deeplearning4j.nn.conf.ComputationGraphConfiguration}
 *///from w w w.  ja  v a  2 s  . com
public static ComputationGraphConfiguration fromJson(String json) {
    //As per MultiLayerConfiguration.fromJson()
    ObjectMapper mapper = NeuralNetConfiguration.mapper();
    try {
        return mapper.readValue(json, ComputationGraphConfiguration.class);
    } catch (IOException e) {
        //No op - try again after adding new subtypes
    }

    //Try: programmatically registering JSON subtypes for GraphVertex classes. This allows users to to add custom GraphVertex
    // implementations without needing to manually register subtypes
    //First: get all registered subtypes
    AnnotatedClass ac = AnnotatedClass.construct(GraphVertex.class,
            mapper.getSerializationConfig().getAnnotationIntrospector(), null);
    Collection<NamedType> types = mapper.getSubtypeResolver().collectAndResolveSubtypes(ac,
            mapper.getSerializationConfig(), mapper.getSerializationConfig().getAnnotationIntrospector());
    Set<Class<?>> registeredSubtypes = new HashSet<>();
    for (NamedType nt : types) {
        registeredSubtypes.add(nt.getType());
    }

    //Second: get all subtypes of GraphVertex using reflection
    Reflections reflections = new Reflections();
    Set<Class<? extends GraphVertex>> subTypes = reflections.getSubTypesOf(GraphVertex.class);

    //Third: register all subtypes that are not already registered
    List<NamedType> toRegister = new ArrayList<>();
    for (Class<? extends GraphVertex> c : subTypes) {
        if (!registeredSubtypes.contains(c)) {
            String name;
            if (ClassUtils.isInnerClass(c)) {
                Class<?> c2 = c.getDeclaringClass();
                name = c2.getSimpleName() + "$" + c.getSimpleName();
            } else {
                name = c.getSimpleName();
            }
            toRegister.add(new NamedType(c, name));
        }
    }
    mapper = NeuralNetConfiguration.reinitMapperWithSubtypes(toRegister);

    try {
        return mapper.readValue(json, ComputationGraphConfiguration.class);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

---

From source file:org.deeplearning4j.nn.conf.NeuralNetConfiguration.java

private static synchronized void registerSubtypes(ObjectMapper mapper) {
    //Register concrete subtypes for JSON serialization

    List<Class<?>> classes = Arrays.<Class<?>>asList(InputPreProcessor.class, ILossFunction.class,
            IActivation.class, Layer.class, GraphVertex.class, ReconstructionDistribution.class);
    List<String> classNames = new ArrayList<>(6);
    for (Class<?> c : classes)
        classNames.add(c.getName());/*from   ww  w .ja  v a 2 s  .c o m*/

    // First: scan the classpath and find all instances of the 'baseClasses' classes
    if (subtypesClassCache == null) {

        //Check system property:
        String prop = System.getProperty(CUSTOM_FUNCTIONALITY);
        if (prop != null && !Boolean.parseBoolean(prop)) {

            subtypesClassCache = Collections.emptySet();
        } else {

            List<Class<?>> interfaces = Arrays.<Class<?>>asList(InputPreProcessor.class, ILossFunction.class,
                    IActivation.class, ReconstructionDistribution.class);
            List<Class<?>> classesList = Arrays.<Class<?>>asList(Layer.class, GraphVertex.class);

            Collection<URL> urls = ClasspathHelper.forClassLoader();
            List<URL> scanUrls = new ArrayList<>();
            for (URL u : urls) {
                String path = u.getPath();
                if (!path.matches(".*/jre/lib/.*jar")) { //Skip JRE/JDK JARs
                    scanUrls.add(u);
                }
            }

            Reflections reflections = new Reflections(
                    new ConfigurationBuilder().filterInputsBy(new FilterBuilder().exclude("^(?!.*\\.class$).*$") //Consider only .class files (to avoid debug messages etc. on .dlls, etc
                            //Exclude the following: the assumption here is that no custom functionality will ever be present
                            // under these package name prefixes. These are all common dependencies for DL4J
                            .exclude("^org.nd4j.*").exclude("^org.datavec.*").exclude("^org.bytedeco.*") //JavaCPP
                            .exclude("^com.fasterxml.*")//Jackson
                            .exclude("^org.apache.*") //Apache commons, Spark, log4j etc
                            .exclude("^org.projectlombok.*").exclude("^com.twelvemonkeys.*")
                            .exclude("^org.joda.*").exclude("^org.slf4j.*").exclude("^com.google.*")
                            .exclude("^org.reflections.*").exclude("^ch.qos.*") //Logback
                    ).addUrls(scanUrls).setScanners(new DL4JSubTypesScanner(interfaces, classesList)));
            org.reflections.Store store = reflections.getStore();

            Iterable<String> subtypesByName = store.getAll(DL4JSubTypesScanner.class.getSimpleName(),
                    classNames);

            Set<? extends Class<?>> subtypeClasses = Sets.newHashSet(ReflectionUtils.forNames(subtypesByName));
            subtypesClassCache = new HashSet<>();
            for (Class<?> c : subtypeClasses) {
                if (Modifier.isAbstract(c.getModifiers()) || Modifier.isInterface(c.getModifiers())) {
                    //log.info("Skipping abstract/interface: {}",c);
                    continue;
                }
                subtypesClassCache.add(c);
            }
        }
    }

    //Second: get all currently registered subtypes for this mapper
    Set<Class<?>> registeredSubtypes = new HashSet<>();
    for (Class<?> c : classes) {
        AnnotatedClass ac = AnnotatedClass.construct(c,
                mapper.getSerializationConfig().getAnnotationIntrospector(), null);
        Collection<NamedType> types = mapper.getSubtypeResolver().collectAndResolveSubtypes(ac,
                mapper.getSerializationConfig(), mapper.getSerializationConfig().getAnnotationIntrospector());
        for (NamedType nt : types) {
            registeredSubtypes.add(nt.getType());
        }
    }

    //Third: register all _concrete_ subtypes that are not already registered
    List<NamedType> toRegister = new ArrayList<>();
    for (Class<?> c : subtypesClassCache) {
        //Check if it's concrete or abstract...
        if (Modifier.isAbstract(c.getModifiers()) || Modifier.isInterface(c.getModifiers())) {
            //log.info("Skipping abstract/interface: {}",c);
            continue;
        }

        if (!registeredSubtypes.contains(c)) {
            String name;
            if (ClassUtils.isInnerClass(c)) {
                Class<?> c2 = c.getDeclaringClass();
                name = c2.getSimpleName() + "$" + c.getSimpleName();
            } else {
                name = c.getSimpleName();
            }
            toRegister.add(new NamedType(c, name));
            if (log.isDebugEnabled()) {
                for (Class<?> baseClass : classes) {
                    if (baseClass.isAssignableFrom(c)) {
                        log.debug("Registering class for JSON serialization: {} as subtype of {}", c.getName(),
                                baseClass.getName());
                        break;
                    }
                }
            }
        }
    }

    mapper.registerSubtypes(toRegister.toArray(new NamedType[toRegister.size()]));
}

---

From source file:yoyo.framework.standard.shared.commons.lang.ClassUtilsTest.java

@Test
public void test() throws ClassNotFoundException, SecurityException, NoSuchMethodException {
    List<Class<?>> classes = new ArrayList<Class<?>>() {
        {/* w  w  w .  j  a  v  a2  s .  c o  m*/
            add(Integer.class);
            add(Long.class);
        }
    };
    assertThat(ClassUtils.convertClassesToClassNames(classes).toArray(),
            is(new Object[] { "java.lang.Integer", "java.lang.Long" }));
    List<String> classNames = new ArrayList<String>() {
        {
            add("java.lang.Integer");
            add("java.lang.Long");
        }
    };
    assertThat(ClassUtils.convertClassNamesToClasses(classNames).toArray(), is(classes.toArray()));
    assertThat(ClassUtils.getAllInterfaces(String.class).toArray(), is(new Object[] {
            java.io.Serializable.class, java.lang.Comparable.class, java.lang.CharSequence.class }));
    assertThat(ClassUtils.getAllSuperclasses(HashMap.class).toArray(),
            is(new Object[] { java.util.AbstractMap.class, java.lang.Object.class }));
    assertThat(ClassUtils.getClass("java.lang.String").toString(), is("class java.lang.String"));
    assertThat(ClassUtils.getPackageCanonicalName(String.class), is("java.lang"));
    assertThat(ClassUtils.getPackageName(String.class), is("java.lang"));
    assertThat(ClassUtils.getPublicMethod(String.class, "length", new Class[] {}), is(not(nullValue())));
    assertThat(ClassUtils.getShortCanonicalName(String.class), is("String"));
    assertThat(ClassUtils.getShortClassName(String.class), is("String"));
    assertThat(ClassUtils.getSimpleName(String.class), is("String"));
    assertThat(ClassUtils.isAssignable(String.class, Object.class), is(true));
    assertThat(ClassUtils.isInnerClass(Foo.class), is(true));
    assertThat(ClassUtils.isInnerClass(String.class), is(false));
    assertThat(ClassUtils.isPrimitiveOrWrapper(Integer.class), is(true));
    assertThat(ClassUtils.isPrimitiveOrWrapper(String.class), is(false));
    assertThat(ClassUtils.isPrimitiveWrapper(Integer.class), is(true));
    assertThat(ClassUtils.isPrimitiveWrapper(String.class), is(false));
    assertThat(ClassUtils.primitivesToWrappers(new Class[] { Integer.class, Long.class }),
            is(not(nullValue())));
    assertThat(ClassUtils.primitiveToWrapper(Integer.class), is(not(nullValue())));
    assertThat(ClassUtils.toClass(1L, 2L), is(not(nullValue())));
    assertThat(ClassUtils.wrappersToPrimitives(new Class[] { Integer.class, Long.class }),
            is(not(nullValue())));
    assertThat(ClassUtils.wrapperToPrimitive(Integer.class), is(not(nullValue())));
}

---