Example usage for org.apache.commons.lang3.reflect FieldUtils getDeclaredField

Introduction

In this page you can find the example usage for org.apache.commons.lang3.reflect FieldUtils getDeclaredField.

Prototype

public static Field getDeclaredField(final Class<?> cls, final String fieldName, final boolean forceAccess) 

Source Link

Document

Gets an accessible Field by name, breaking scope if requested.

Usage

From source file:com.garethahealy.jolokiajvmhawkular.core.EmbeddedHawkularMetricsAgent.java

public static void premain(String agentArgs) {
    CustomJvmAgent.premain(agentArgs);/* w w w. j av  a 2  s.  co m*/

    try {
        LOG.info("About to load BackendManager...");

        Field jolokiaHttpHandlerField = FieldUtils.getDeclaredField(server.getClass(), "jolokiaHttpHandler",
                true);
        JolokiaHttpHandler jolokiaHttpHandler = (JolokiaHttpHandler) jolokiaHttpHandlerField.get(server);

        Field backendManagerField = FieldUtils.getDeclaredField(jolokiaHttpHandler.getClass(), "backendManager",
                true);
        BackendManager backendManager = (BackendManager) backendManagerField.get(jolokiaHttpHandler);

        HawkularClient client = getHawkularClient();
        if (client == null) {
            LOG.error(
                    "HawkularClient is null. Not starting HawkularMetricsService via ScheduledExecutorService.");
        } else {
            BasicThreadFactory factory = new BasicThreadFactory.Builder().namingPattern("hawkular-metrics-%d")
                    .daemon(true).priority(Thread.MAX_PRIORITY).build();

            ScheduledExecutorService exec = Executors.newSingleThreadScheduledExecutor(factory);
            exec.scheduleAtFixedRate(
                    new HawkularMetricsRunnable(new HawkularMetricsService(backendManager, client)), 15, 15,
                    TimeUnit.SECONDS);

            LOG.info("Started HawkularMetricsService via ScheduledExecutorService.");
        }
    } catch (IllegalAccessException e) {
        LOG.error("{}", e);
    }
}

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From source file:me.bird.util.Reflections.java

/**
 * ?, private/protected, ??getter.//from  w ww . j a va 2 s .c  o m
 */
public static Object getFieldValue(final Object obj, final String fieldName) {
    Field field = FieldUtils.getDeclaredField(obj.getClass(), fieldName, true);

    if (field == null) {
        throw new IllegalArgumentException("Could not find field [" + fieldName + "] on target [" + obj + "]");
    }

    Object result = null;
    try {
        result = field.get(obj);
    } catch (IllegalAccessException e) {
        logger.error("??", e);
    }
    return result;
}

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From source file:com.nortal.petit.beanmapper.BeanMappingReflectionUtils.java

private static void readAnnotations(List<Annotation> l, Class<?> type, String name) {
    Column ao = getAttributeOverride(type, name);
    if (ao != null) {
        l.add(ao);//from www.ja  v  a  2s .c om
    }
    Field field = FieldUtils.getDeclaredField(type, name, true);
    if (field != null) {
        addAll(l, field.getAnnotations());
    }
    PropertyDescriptor pd = BeanUtils.getPropertyDescriptor(type, name);
    if (pd != null) {
        if (pd.getReadMethod() != null) {
            addAll(l, pd.getReadMethod().getAnnotations());
        }
    }
    if (type.getSuperclass() != null) {
        readAnnotations(l, type.getSuperclass(), name);
    }
}

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From source file:com.android.build.gradle.internal.pipeline.InjectTransformManager.java

/**
 * transformTask?/* ww  w .ja  va 2 s.  c  o m*/
 *
 * @param transformTask
 * @param consumedInputStreams
 * @param referencedInputStreams
 * @param outputStream
 */
private void updateTransformTaskConfig(TransformTask transformTask,
        @NonNull Collection<TransformStream> consumedInputStreams,
        @NonNull Collection<TransformStream> referencedInputStreams, @Nullable IntermediateStream outputStream)
        throws IllegalAccessException {
    Field consumedInputStreamsField = FieldUtils.getDeclaredField(StreamBasedTask.class, "consumedInputStreams",
            true);
    Field referencedInputStreamsField = FieldUtils.getDeclaredField(StreamBasedTask.class,
            "referencedInputStreams", true);
    Field outputStreamField = FieldUtils.getDeclaredField(StreamBasedTask.class, "outputStream", true);

    if (null == consumedInputStreamsField || null == referencedInputStreamsField || null == outputStreamField) {
        throw new StopExecutionException(
                "The TransformTask does not has field with name: consumedInputStreams or referencedInputStreams or outputStream! Plugin version does not support!");
    }
    consumedInputStreamsField.set(transformTask, consumedInputStreams);
    referencedInputStreamsField.set(transformTask, referencedInputStreams);
    outputStreamField.set(transformTask, outputStream);
}

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From source file:com.android.build.gradle.internal.pipeline.InjectTransformManager.java

/**
 * ?transformTask?//from   w  w w . j  av a  2 s  . c  o m
 *
 * @param transformTask
 * @return
 * @throws IllegalAccessException
 */
private TransformTaskParam getTransformParam(TransformTask transformTask) throws IllegalAccessException {
    TransformTaskParam transformTaskParam = new TransformTaskParam();
    Field consumedInputStreamsField = FieldUtils.getDeclaredField(StreamBasedTask.class, "consumedInputStreams",
            true);
    Field referencedInputStreamsField = FieldUtils.getDeclaredField(StreamBasedTask.class,
            "referencedInputStreams", true);
    Field outputStreamField = FieldUtils.getDeclaredField(StreamBasedTask.class, "outputStream", true);

    if (null == consumedInputStreamsField || null == referencedInputStreamsField || null == outputStreamField) {
        throw new StopExecutionException(
                "The TransformTask does not has field with name: consumedInputStreams or referencedInputStreams or outputStream! Plugin version does not support!");
    }
    transformTaskParam.consumedInputStreams = (Collection<TransformStream>) consumedInputStreamsField
            .get(transformTask);
    transformTaskParam.referencedInputStreams = (Collection<TransformStream>) referencedInputStreamsField
            .get(transformTask);
    transformTaskParam.outputStream = (IntermediateStream) outputStreamField.get(transformTask);
    return transformTaskParam;
}

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From source file:org.bitbucket.mlopatkin.android.liblogcat.ddmlib.AdbConnectionManager.java

private static boolean isReady(AndroidDebugBridge adb) throws DdmlibUnsupportedException {
    if (adb == null) {
        return false;
    }/*from w ww . j a  va  2s. c  om*/
    // hack below - there is no explicit way to check if the bridge was
    // created succesfully
    try {
        return (Boolean) FieldUtils
                .readField(FieldUtils.getDeclaredField(AndroidDebugBridge.class, "mStarted", true), adb, true);
    } catch (IllegalAccessException e) {
        logger.fatal("The DDMLIB is unsupported", e);
        throw new DdmlibUnsupportedException("The DDMLIB supplied is unsupported: " + System.getenv("DDMLIB"));
    }

}

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From source file:org.gerzog.spock.injectmock.internal.accessors.FieldAccessor.java

@Override
public boolean exists(final Class<?> clazz, final String name, final Class<?> type) {
    final Field field = FieldUtils.getDeclaredField(clazz, name, true);

    boolean result = field != null;

    if ((field != null) && !field.getType().isAssignableFrom(type)) {
        result = false;//  w  w w. j  a va2  s .  c  o  m
    }

    return result;
}

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From source file:org.xwiki.job.internal.xstream.SafeTreeUnmarshaller.java

@Override
protected Object convert(Object parent, Class type, Converter converter) {
    try {/*from   ww w. j av  a2  s .  c  om*/
        return super.convert(parent, type, converter);
    } catch (Throwable e) {
        FastStack types;
        try {
            types = (FastStack) FieldUtils.getDeclaredField(TreeUnmarshaller.class, "types", true).get(this);
            types.popSilently();
        } catch (Exception e1) {
            // Should never happen
            LOGGER.debug("Failed to access private field com.thoughtworks.xstream.core.TreeUnmarshaller#types",
                    type, e1);
        }

        LOGGER.debug("Got unknown exception when converting object of type [{}]", type, e);
    }

    return null;
}

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