Example usage for java.lang.reflect Field set

List of usage examples for java.lang.reflect Field set

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Introduction

In this page you can find the example usage for java.lang.reflect Field set.

Prototype

@CallerSensitive
@ForceInline 
public void set(Object obj, Object value) throws IllegalArgumentException, IllegalAccessException

Source Link

Document

Sets the field represented by this Field object on the specified object argument to the specified new value.

Usage

From source file:com.linkedin.pinot.transport.common.routing.RandomRoutingTableTest.java

@Test
public void testHelixExternalViewBasedRoutingTable() throws Exception {
    String tableName = "testTable_OFFLINE";
    String fileName = RandomRoutingTableTest.class.getClassLoader().getResource("SampleExternalView.json")
            .getFile();//from  www . j  a  v a  2s  .c  om
    System.out.println(fileName);
    InputStream evInputStream = new FileInputStream(fileName);
    ZNRecordSerializer znRecordSerializer = new ZNRecordSerializer();
    ZNRecord externalViewRecord = (ZNRecord) znRecordSerializer.deserialize(IOUtils.toByteArray(evInputStream));
    int totalRuns = 10000;
    RoutingTableBuilder routingStrategy = new BalancedRandomRoutingTableBuilder(10);
    HelixExternalViewBasedRouting routingTable = new HelixExternalViewBasedRouting(null, null);
    Field offlineRTBField = HelixExternalViewBasedRouting.class.getDeclaredField("_offlineRoutingTableBuilder");
    offlineRTBField.setAccessible(true);
    offlineRTBField.set(routingTable, routingStrategy);

    ExternalView externalView = new ExternalView(externalViewRecord);

    routingTable.markDataResourceOnline(tableName, externalView, getInstanceConfigs(externalView));

    double[] globalArrays = new double[9];

    for (int numRun = 0; numRun < totalRuns; ++numRun) {
        RoutingTableLookupRequest request = new RoutingTableLookupRequest(tableName);
        Map<ServerInstance, SegmentIdSet> serversMap = routingTable.findServers(request);
        TreeSet<ServerInstance> serverInstances = new TreeSet<ServerInstance>(serversMap.keySet());

        int i = 0;

        double[] arrays = new double[9];
        for (ServerInstance serverInstance : serverInstances) {
            globalArrays[i] += serversMap.get(serverInstance).getSegments().size();
            arrays[i++] = serversMap.get(serverInstance).getSegments().size();
        }
        for (int j = 0; i < arrays.length; ++j) {
            Assert.assertTrue(arrays[j] / totalRuns <= 31);
            Assert.assertTrue(arrays[j] / totalRuns >= 28);
        }
        //System.out.println(Arrays.toString(arrays) + " : " + new StandardDeviation().evaluate(arrays) + " : " + new Mean().evaluate(arrays));
    }
    for (int i = 0; i < globalArrays.length; ++i) {
        Assert.assertTrue(globalArrays[i] / totalRuns <= 31);
        Assert.assertTrue(globalArrays[i] / totalRuns >= 28);
    }
    System.out.println(Arrays.toString(globalArrays) + " : " + new StandardDeviation().evaluate(globalArrays)
            + " : " + new Mean().evaluate(globalArrays));
}

From source file:com.thoughtworks.xstream.benchmark.reflection.targets.AbstractReflectionTarget.java

protected void fill(final Object o) {
    final char[] zero = new char[8];
    Arrays.fill(zero, '0');
    for (Class cls = o.getClass(); cls != Object.class; cls = cls.getSuperclass()) {
        final Field[] fields = cls.getDeclaredFields();
        for (int i = 0; i < fields.length; i++) {
            final Field field = fields[i];
            field.setAccessible(true);//from www.  ja  v  a 2s. c o  m
            if (field.getType() == String.class) {
                final String hex = Integer.toHexString(i);
                try {
                    field.set(o, new String(zero, 0, zero.length - hex.length()) + hex);
                } catch (final IllegalAccessException e) {
                    throw new RuntimeException(e);
                }
            }
        }
    }
}

From source file:com.android.tests.lib.LibUnitTest.java

@Test
public void instanceFields() throws Exception {
    SyncResult result = mock(SyncResult.class);
    Field statsField = result.getClass().getField("stats");
    SyncStats syncStats = mock(SyncStats.class);
    statsField.set(result, syncStats);

    syncStats.numDeletes = 42;//w  w w. ja  v  a2  s.c  o  m
    assertEquals(42, result.stats.numDeletes);
}

From source file:com.gargoylesoftware.htmlunit.runners.FrameworkMethodWithParameters.java

/**
 * {@inheritDoc}//from  ww w.  j av a2  s. com
 */
@Override
public Object invokeExplosively(final Object target, final Object... params) throws Throwable {
    if (!parameters_.isEmpty()) {
        final List<FrameworkField> annotatedFieldsByParameter = testClass_.getAnnotatedFields(Parameter.class);
        if (annotatedFieldsByParameter.size() != parameters_.size()) {
            throw new Exception("Wrong number of parameters and @Parameter fields."
                    + " @Parameter fields counted: " + annotatedFieldsByParameter.size()
                    + ", available parameters: " + parameters_.size() + ".");
        }
        for (final FrameworkField each : annotatedFieldsByParameter) {
            final Field field = each.getField();
            final Parameter annotation = field.getAnnotation(Parameter.class);
            final int index = annotation.value();
            try {
                field.set(target, parameters_.get(index));
            } catch (final IllegalArgumentException iare) {
                throw new Exception(testClass_.getName() + ": Trying to set " + field.getName()
                        + " with the value " + parameters_.get(index) + " that is not the right type ("
                        + parameters_.get(index).getClass().getSimpleName() + " instead of "
                        + field.getType().getSimpleName() + ").", iare);
            }
        }
    }
    return super.invokeExplosively(target, params);
}

From source file:com.liferay.portal.template.velocity.internal.LiferayResourceManager.java

@Override
public synchronized void initialize(RuntimeServices runtimeServices) throws Exception {

    ExtendedProperties extendedProperties = runtimeServices.getConfiguration();

    Field field = ReflectionUtil.getDeclaredField(RuntimeInstance.class, "configuration");

    field.set(runtimeServices, new FastExtendedProperties(extendedProperties));

    _macroTemplateIds = StringPlus.asList(extendedProperties.get(VelocityEngine.VM_LIBRARY));
    _resourceModificationCheckInterval = GetterUtil.getInteger(extendedProperties
            .get("liferay." + VelocityEngine.RESOURCE_LOADER + ".resourceModificationCheckInterval"), 60);
    _templateResourceLoader = (TemplateResourceLoader) extendedProperties
            .get(VelocityTemplateResourceLoader.class.getName());

    super.initialize(runtimeServices);
}

From source file:org.brekka.stillingar.spring.pc.ConstructorArgDefChangeListener.java

@Override
protected void onChange(String newValue) {
    ConfigurableListableBeanFactory beanFactory = beanFactoryRef.get();
    if (beanFactory == null) {
        return;/*from  w w w. j ava 2s  . c o  m*/
    }

    BeanDefinition beanDef = beanFactory.getMergedBeanDefinition(beanName);
    ConstructorArgumentValues mutableConstructorValues = beanDef.getConstructorArgumentValues();
    ValueHolder valueHolder = null;
    List<ValueHolder> genericArgumentValues = mutableConstructorValues.getGenericArgumentValues();
    if (constructorArgIndex != null) {
        valueHolder = mutableConstructorValues.getIndexedArgumentValues().get(constructorArgIndex);
        if (valueHolder == null) {
            throw new IllegalStateException(
                    String.format("Failed to find constructor arg at index %d", constructorArgIndex));
        }
    } else if (genericArgumentValues.size() == 1) {
        valueHolder = genericArgumentValues.get(0);
    } else {
        for (ValueHolder vh : genericArgumentValues) {
            if (vh.getType().equals(constructorArgType)) {
                valueHolder = vh;
            }
        }
        if (valueHolder == null) {
            throw new IllegalStateException(
                    String.format("Failed to find constructor arg with type '%s'", constructorArgType));
        }
    }
    if (!ObjectUtils.nullSafeEquals(newValue, valueHolder.getValue())) {
        valueHolder.setValue(newValue);
        try {
            /*
             * Spring implements caching of constructor values, which can be reset by clearing the package-private
             * field 'resolvedConstructorOrFactoryMethod' on RootBeanDefinition. Naturally this will fail if a
             * security manager is present but there doesn't seem to be any other way to do it. Make sure to warn
             * about this in the documentation!
             */
            Field field = beanDef.getClass().getDeclaredField("resolvedConstructorOrFactoryMethod");
            field.setAccessible(true);
            field.set(beanDef, null);
        } catch (Exception e) {
            throw new ConfigurationException(String.format(
                    "Unable to update value for constructor argument '%s'. "
                            + "Failed to reset the cached constructor state for bean '%s'",
                    (constructorArgIndex != null ? constructorArgIndex.toString() : constructorArgType),
                    beanName), e);
        }
    }
}

From source file:co.cask.cdap.file.dropzone.FileDropZoneIT.java

@Test
public void fileDropZoneBasicIT() throws Exception {

    final File configurationFile = getConfigFile();
    PollingServiceManager pollingServiceManager = new PollingServiceManager(configurationFile);
    pollingServiceManager.initManager();

    Field monitor = pollingServiceManager.getClass().getDeclaredField("monitor");
    monitor.setAccessible(true);//from  www .  ja  v a 2  s  .  co  m
    PollingService myMonitor = (PollingService) monitor.get(pollingServiceManager);
    ObserverConfiguration observerConf = loadConfig(configurationFile);
    PollingListener myPollingListener = new PollingListenerImpl(myMonitor, observerConf);
    FileTailerMetricsProcessor metricsProcessor = getMetricsProcessor(observerConf);
    Field metricsProcessorField = myPollingListener.getClass().getDeclaredField("metricsProcessor");
    metricsProcessorField.setAccessible(true);
    metricsProcessorField.set(myPollingListener, metricsProcessor);
    myMonitor.registerDirMonitor(observerConf.getPipeConf().getSourceConfiguration().getWorkDir(),
            myPollingListener);

    createFile(observerConf.getPipeConf().getSourceConfiguration().getWorkDir().getAbsolutePath());
    pollingServiceManager.startMonitor();
    Thread.sleep(SLEEP_TIME);
    pollingServiceManager.stopMonitor();

    Assert.assertEquals(read.get(), ingest.get());
}

From source file:almira.sample.util.LogPostProcessor.java

@Override
public Object postProcessBeforeInitialization(final Object bean, String beanName) {
    ReflectionUtils.doWithFields(bean.getClass(), new FieldCallback() {
        @Override// w  w w.  jav  a  2s. com
        public void doWith(Field field) throws IllegalAccessException {
            ReflectionUtils.makeAccessible(field);
            if (field.getAnnotation(Log.class) != null) {
                Logger logger = LoggerFactory.getLogger(bean.getClass().getName());
                field.set(bean, logger);
            }
        }
    });
    return bean;
}

From source file:com.ngandroid.lib.NgAndroid.java

public <T> T buildModel(Object scope, String fieldName, Class<T> clss) {
    try {//ww w .j a v  a 2 s  . co m
        Field f = scope.getClass().getDeclaredField(fieldName);
        f.setAccessible(true);
        T val = (T) new ModelBuilder(clss).create();
        f.set(scope, val);
        return val;
    } catch (NoSuchFieldException e) {
        //TODO
        throw new RuntimeException(
                "There is no such field '" + fieldName + "' found in " + scope.getClass().getSimpleName());
    } catch (IllegalAccessException e) {
        throw new RuntimeException(
                "Unable to access field '" + fieldName + "' in " + scope.getClass().getSimpleName());
    }
}

From source file:jp.terasoluna.fw.beans.jxpath.JXPATH152PatchActivatorTest.java

/**
 * ??//  w  ww  . j a v  a  2s . c  om
 * @throws Exception ?????
 */
@After
public void tearDown() throws Exception {
    logger.clear();
    Field field = JXPathIntrospector.class.getDeclaredField("byClass");
    field.setAccessible(true);
    field.set(JXPathIntrospector.class, byClassBak);
    field = JXPathIntrospector.class.getDeclaredField("byInterface");
    field.setAccessible(true);
    field.set(JXPathIntrospector.class, byInterfaceBak);
}