Example usage for java.lang.reflect Constructor setAccessible

Introduction

In this page you can find the example usage for java.lang.reflect Constructor setAccessible.

Prototype

@Override
@CallerSensitive
public void setAccessible(boolean flag) 

Source Link

Document

A SecurityException is also thrown if this object is a Constructor object for the class Class and flag is true.

Usage

From source file:org.omnaest.utils.reflection.ReflectionUtils.java

/**
 * Creates a new instance of a given {@link Class} using a constructor which has the same parameter signature as the provided
 * arguments. <br>/*from  w  w  w .j  a  v  a2  s  .  c  om*/
 * <br>
 * Primitive arguments will be matched to their java wrapper types.<br>
 * <br>
 * This method never throws an {@link Exception} instead null is returned.
 * 
 * @see #newInstanceByValueOf(Class, Object...)
 * @param type
 *          {@link Class}
 * @param arguments
 */
public static <B> B newInstanceOf(Class<? extends B> type, Object... arguments) {
    //
    B retval = null;

    //
    if (type != null) {
        //
        try {
            //
            Constructor<? extends B> constructor = constructorFor(type, arguments);
            constructor.setAccessible(true);

            //
            retval = constructor.newInstance(arguments);
        } catch (Exception e) {
        }
    }

    //
    return retval;
}

---

From source file:eu.tripledframework.eventstore.infrastructure.ReflectionObjectConstructor.java

private T createInstance(DomainEvent event) {
    Constructor constructor = getEventHandlerConstructor(event);
    if (constructor == null) {
        throw new AggregateRootReconstructionException(
                String.format("Could not find a suitable constructor for event %s", event));
    }//from ww  w.j a  v a2  s.c  o  m
    try {
        constructor.setAccessible(true);
        Object[] parameters = getParametersValues(constructor.getParameterAnnotations(), event);
        return (T) constructor.newInstance(parameters);
    } catch (InstantiationException | IllegalAccessException | InvocationTargetException e) {
        throw new AggregateRootReconstructionException(
                String.format("Could not create object using constructor %s", constructor), e);
    }
}

---

From source file:org.blocks4j.reconf.client.config.update.ConfigurationRepositoryUpdater.java

private void sync(Class<? extends RuntimeException> cls) {
    LoggerHolder.getLog().info(msg.format("sync.start", getName()));
    List<ConfigurationUpdater> toExecute = new ArrayList<ConfigurationUpdater>();
    CountDownLatch latch = new CountDownLatch(data.getAll().size());
    Map<Method, ConfigurationItemUpdateResult> updateAtomic = new ConcurrentHashMap<Method, ConfigurationItemUpdateResult>();

    try {// ww w  .  j  a va  2  s  .  c  o m
        for (MethodConfiguration config : data.getAll()) {
            toExecute.add(locator.configurationUpdaterFactory().syncRemote(updateAtomic, config, latch));
        }
        for (Thread thread : toExecute) {
            thread.start();
        }
        waitFor(latch);

    } catch (Exception ignored) {
        LoggerHolder.getLog().error(msg.format("sync.error", getName()), ignored);

    } finally {
        interruptAll(toExecute);
    }

    if (ConfigurationItemUpdateResult.countSuccess(updateAtomic.values()) != data.getAll().size()) {
        String error = msg.format("sync.error", getName());
        try {
            Constructor<?> constructor = null;
            constructor = cls.getConstructor(String.class);
            constructor.setAccessible(true);
            throw cls.cast(constructor.newInstance(error));

        } catch (NoSuchMethodException ignored) {
            throw new UpdateConfigurationRepositoryException(error);
        } catch (InvocationTargetException ignored) {
            throw new UpdateConfigurationRepositoryException(error);
        } catch (InstantiationException ignored) {
            throw new UpdateConfigurationRepositoryException(error);
        } catch (IllegalAccessException ignored) {
            throw new UpdateConfigurationRepositoryException(error);
        }
    }
    finishSync(updateAtomic);
    Notifier.notify(listeners, toExecute, getName());
    LoggerHolder.getLog().info(msg.format("sync.end", getName()));
}

---

From source file:org.apache.hadoop.hbase.thrift2.client.ThriftConnection.java

public ThriftConnection(Configuration conf, ExecutorService pool, final User user) throws IOException {
    this.conf = conf;
    this.user = user;
    this.host = conf.get(Constants.HBASE_THRIFT_SERVER_NAME);
    this.port = conf.getInt(Constants.HBASE_THRIFT_SERVER_PORT, -1);
    Preconditions.checkArgument(port > 0);
    Preconditions.checkArgument(host != null);
    this.isFramed = conf.getBoolean(Constants.FRAMED_CONF_KEY, Constants.FRAMED_CONF_DEFAULT);
    this.isCompact = conf.getBoolean(Constants.COMPACT_CONF_KEY, Constants.COMPACT_CONF_DEFAULT);
    this.operationTimeout = conf.getInt(HConstants.HBASE_CLIENT_OPERATION_TIMEOUT,
            HConstants.DEFAULT_HBASE_CLIENT_OPERATION_TIMEOUT);
    this.connectTimeout = conf.getInt(SOCKET_TIMEOUT_CONNECT, DEFAULT_SOCKET_TIMEOUT_CONNECT);

    String className = conf.get(Constants.HBASE_THRIFT_CLIENT_BUIDLER_CLASS,
            DefaultThriftClientBuilder.class.getName());
    try {//from   ww  w . j  ava  2 s  .c o  m
        Class<?> clazz = Class.forName(className);
        Constructor<?> constructor = clazz.getDeclaredConstructor(ThriftConnection.class);
        constructor.setAccessible(true);
        clientBuilder = (ThriftClientBuilder) constructor.newInstance(this);
    } catch (Exception e) {
        throw new IOException(e);
    }
}

---

From source file:ae.config.Project.java

private ActiveEntity loadModelDefinitionAt(final Class<?> aClass) {
    assert aClass != null : "aClass is null";
    final Object declaredModel;
    final Constructor<?> constructor;

    try {// w ww .  j  av a2  s . c  om
        constructor = aClass.getDeclaredConstructor(getClass());
    } catch (final SecurityException e) {
        throw new IllegalStateException(e);
    } catch (final NoSuchMethodException e) {
        throw new IllegalStateException(e);
    }
    constructor.setAccessible(true);
    try {
        declaredModel = constructor.newInstance(this);
    } catch (final InstantiationException e) {
        throw new IllegalStateException(e);
    } catch (final IllegalAccessException e) {
        throw new IllegalStateException(e);
    } catch (final InvocationTargetException e) {
        throw new IllegalStateException(e);
    }
    return (ActiveEntity) declaredModel;
}

---

From source file:org.silverpeas.core.test.extention.SilverTestEnv.java

private <T> T instantiate(final Class<? extends T> beanType) {
    T bean;/*from   w w w  . jav a2s.  co m*/
    try {
        Constructor<? extends T> constructor = beanType.getDeclaredConstructor();
        constructor.setAccessible(true);
        bean = constructor.newInstance();
    } catch (NoSuchMethodException | InvocationTargetException | InstantiationException
            | IllegalAccessException e) {
        bean = null;
    }
    return bean;
}

---

From source file:org.cruk.genologics.api.GenologicsAPIPaginatedBatchTest.java

@Test
public void testMultipageFetchListSome() throws Exception {
    // Note - reusing the files from above means that the subsequent pages
    // with have "&projectname=Run+1030" as part of the URL. This can be ignored
    // for this test.

    // Part one - mock the rest template to return the already parsed objects.

    RestOperations restMock = EasyMock.createStrictMock(RestOperations.class);

    EasyMock.expect(restMock.getForEntity("http://lims.cri.camres.org:8080/api/v2/samples?start-index=0",
            Samples.class)).andReturn(response1).once();
    EasyMock.expect(restMock.getForEntity(
            new URI("http://lims.cri.camres.org:8080/api/v2/samples?start-index=500&projectname=Run+1030"),
            Samples.class)).andReturn(response2).once();
    // Should get as far as response 3 in this test.

    GenologicsAPIImpl localApi = context.getBean("genologicsAPI", GenologicsAPIImpl.class);
    localApi.setRestClient(restMock);/*from   w ww  .ja  v a 2s.  c  om*/
    localApi.setServer(new URL("http://lims.cri.camres.org:8080"));

    EasyMock.replay(restMock);

    List<LimsLink<Sample>> links = localApi.listSome(Sample.class, 0, 750);

    EasyMock.verify(restMock);

    assertEquals("Expected 750 sample links returned", 750, links.size());

    // Part two - mock the HTTP client and request factory to ensure that the URIs are
    // being presented as expected without character cludging.

    HttpContext httpContext = HttpClientContext.create();
    HttpClient mockHttpClient = EasyMock.createMock(HttpClient.class);
    ClientHttpRequestFactory mockRequestFactory = EasyMock.createMock(ClientHttpRequestFactory.class);

    RestTemplate restTemplate = context.getBean("genologicsRestTemplate", RestTemplate.class);
    restTemplate.setRequestFactory(mockRequestFactory);

    localApi.setHttpClient(mockHttpClient);
    localApi.setRestClient(restTemplate);

    URI pageOne = new URI("http://lims.cri.camres.org:8080/api/v2/samples?start-index=0");
    URI pageTwo = new URI(
            "http://lims.cri.camres.org:8080/api/v2/samples?start-index=500&projectname=Run+1030");

    HttpGet getOne = new HttpGet(pageOne);
    HttpGet getTwo = new HttpGet(pageTwo);

    HttpResponse responseOne = createMultipageFetchResponse(pageFiles[0]);
    HttpResponse responseTwo = createMultipageFetchResponse(pageFiles[1]);

    Class<?> requestClass = Class.forName("org.springframework.http.client.HttpComponentsClientHttpRequest");
    Constructor<?> constructor = requestClass.getDeclaredConstructor(HttpClient.class, HttpUriRequest.class,
            HttpContext.class);
    constructor.setAccessible(true);

    ClientHttpRequest reqOne = (ClientHttpRequest) constructor.newInstance(mockHttpClient, getOne, httpContext);
    ClientHttpRequest reqTwo = (ClientHttpRequest) constructor.newInstance(mockHttpClient, getTwo, httpContext);

    EasyMock.expect(mockRequestFactory.createRequest(pageOne, HttpMethod.GET)).andReturn(reqOne).once();
    EasyMock.expect(mockRequestFactory.createRequest(pageTwo, HttpMethod.GET)).andReturn(reqTwo).once();

    EasyMock.expect(mockHttpClient.execute(getOne, httpContext)).andReturn(responseOne).once();
    EasyMock.expect(mockHttpClient.execute(getTwo, httpContext)).andReturn(responseTwo).once();

    EasyMock.replay(mockHttpClient, mockRequestFactory);

    links = localApi.listSome(Sample.class, 0, 750);

    EasyMock.verify(mockHttpClient, mockRequestFactory);

    assertEquals("Expected 750 sample links returned", 750, links.size());
}

---

From source file:code.elix_x.excore.utils.nbt.mbt.encoders.NBTClassEncoder.java

@Override
public Object fromNBT(MBT mbt, NBTTagCompound nbt, Class clazz, Class... tsclasses) {
    try {// www .  j  a  v a  2  s . c  om
        Constructor constructor;
        if (encodeClass)
            clazz = Class.forName(nbt.getString(CLASS));
        try {
            constructor = clazz.getConstructor();
        } catch (NoSuchMethodException e) {
            constructor = clazz.getDeclaredConstructor();
        }
        constructor.setAccessible(true);
        Object o = constructor.newInstance();
        populate(mbt, nbt, o);
        return o;
    } catch (InstantiationException e) {
        throw Throwables.propagate(e);
    } catch (IllegalAccessException e) {
        throw Throwables.propagate(e);
    } catch (NoSuchMethodException e) {
        throw Throwables.propagate(e);
    } catch (SecurityException e) {
        throw Throwables.propagate(e);
    } catch (IllegalArgumentException e) {
        throw Throwables.propagate(e);
    } catch (InvocationTargetException e) {
        throw Throwables.propagate(e);
    } catch (ClassNotFoundException e) {
        throw Throwables.propagate(e);
    }
}

---

From source file:de.matzefratze123.heavyspleef.core.flag.FlagRegistry.java

public void registerFlag(Class<? extends AbstractFlag<?>> clazz) {
    Validate.notNull(clazz, "clazz cannot be null");
    Validate.isTrue(!registeredFlagsMap.containsValue(clazz), "Cannot register flag twice");

    /* Check if the class provides the required Flag annotation */
    Validate.isTrue(clazz.isAnnotationPresent(Flag.class),
            "Flag-Class must be annotated with the @Flag annotation");

    Flag flagAnnotation = clazz.getAnnotation(Flag.class);
    String name = flagAnnotation.name();

    Validate.isTrue(!name.isEmpty(),//  w ww. ja v  a 2  s . c  o m
            "name() of annotation of flag for class " + clazz.getCanonicalName() + " cannot be empty");

    /* Generate a path */
    StringBuilder pathBuilder = new StringBuilder();
    Flag parentFlagData = flagAnnotation;

    do {
        pathBuilder.insert(0, parentFlagData.name());

        Class<? extends AbstractFlag<?>> parentFlagClass = parentFlagData.parent();
        parentFlagData = parentFlagClass.getAnnotation(Flag.class);

        if (parentFlagData != null && parentFlagClass != NullFlag.class) {
            pathBuilder.insert(0, FLAG_PATH_SEPERATOR);
        }
    } while (parentFlagData != null);

    String path = pathBuilder.toString();

    /* Check for name collides */
    for (String flagPath : registeredFlagsMap.primaryKeySet()) {
        if (flagPath.equalsIgnoreCase(path)) {
            throw new IllegalArgumentException(
                    "Flag " + clazz.getName() + " collides with " + registeredFlagsMap.get(flagPath).getName());
        }
    }

    /* Check if the class can be instantiated */
    try {
        Constructor<? extends AbstractFlag<?>> constructor = clazz.getDeclaredConstructor();

        //Make the constructor accessible for future uses
        constructor.setAccessible(true);
    } catch (NoSuchMethodException | SecurityException e) {
        throw new IllegalArgumentException("Flag-Class must provide an empty constructor");
    }

    HookManager hookManager = heavySpleef.getHookManager();
    boolean allHooksPresent = true;
    for (HookReference ref : flagAnnotation.depend()) {
        if (!hookManager.getHook(ref).isProvided()) {
            allHooksPresent = false;
        }
    }

    if (allHooksPresent) {
        for (Method method : clazz.getDeclaredMethods()) {
            if (!method.isAnnotationPresent(FlagInit.class)) {
                continue;
            }

            if ((method.getModifiers() & Modifier.STATIC) == 0) {
                throw new IllegalArgumentException("Flag initialization method " + method.getName()
                        + " in type " + clazz.getCanonicalName() + " is not declared as static");
            }

            queuedInitMethods.add(method);
        }

        if (flagAnnotation.hasCommands()) {
            CommandManager manager = heavySpleef.getCommandManager();
            manager.registerSpleefCommands(clazz);
        }
    }

    registeredFlagsMap.put(path, flagAnnotation, clazz);
}

---

From source file:org.cruk.genologics.api.GenologicsAPIPaginatedBatchTest.java

@Test
public void testMultipageFetchFind() throws Exception {
    // Part one - mock the rest template to return the already parsed objects.

    RestOperations restMock = EasyMock.createStrictMock(RestOperations.class);

    EasyMock.expect(restMock.getForEntity("http://lims.cri.camres.org:8080/api/v2/samples?projectname=Run 1030",
            Samples.class)).andReturn(response1).once();
    EasyMock.expect(restMock.getForEntity(
            new URI("http://lims.cri.camres.org:8080/api/v2/samples?start-index=500&projectname=Run+1030"),
            Samples.class)).andReturn(response2).once();
    EasyMock.expect(restMock.getForEntity(
            new URI("http://lims.cri.camres.org:8080/api/v2/samples?start-index=1000&projectname=Run+1030"),
            Samples.class)).andReturn(response3).once();

    GenologicsAPIImpl localApi = context.getBean("genologicsAPI", GenologicsAPIImpl.class);
    localApi.setRestClient(restMock);// ww w .  jav  a2 s .  com
    localApi.setServer(new URL("http://lims.cri.camres.org:8080"));

    EasyMock.replay(restMock);

    Map<String, Object> terms = new HashMap<String, Object>();
    terms.put("projectname", "Run 1030");

    List<LimsLink<Sample>> links = localApi.find(terms, Sample.class);

    EasyMock.verify(restMock);

    assertEquals("Expected 1150 sample links returned", 1150, links.size());

    // Part two - mock the HTTP client and request factory to ensure that the URIs are
    // being presented as expected without character cludging.

    HttpContext httpContext = HttpClientContext.create();
    HttpClient mockHttpClient = EasyMock.createMock(HttpClient.class);
    AuthenticatingClientHttpRequestFactory mockRequestFactory = EasyMock
            .createMock(AuthenticatingClientHttpRequestFactory.class);

    RestTemplate restTemplate = context.getBean("genologicsRestTemplate", RestTemplate.class);
    restTemplate.setRequestFactory(mockRequestFactory);

    localApi.setHttpClient(mockHttpClient);
    localApi.setRestClient(restTemplate);

    URI pageOne = new URI("http://lims.cri.camres.org:8080/api/v2/samples?projectname=Run%201030");
    URI pageTwo = new URI(
            "http://lims.cri.camres.org:8080/api/v2/samples?start-index=500&projectname=Run+1030");
    URI pageThree = new URI(
            "http://lims.cri.camres.org:8080/api/v2/samples?start-index=1000&projectname=Run+1030");

    HttpGet getOne = new HttpGet(pageOne);
    HttpGet getTwo = new HttpGet(pageOne);
    HttpGet getThree = new HttpGet(pageOne);

    HttpResponse responseOne = createMultipageFetchResponse(pageFiles[0]);
    HttpResponse responseTwo = createMultipageFetchResponse(pageFiles[1]);
    HttpResponse responseThree = createMultipageFetchResponse(pageFiles[2]);

    Class<?> requestClass = Class.forName("org.springframework.http.client.HttpComponentsClientHttpRequest");
    Constructor<?> constructor = requestClass.getDeclaredConstructor(HttpClient.class, HttpUriRequest.class,
            HttpContext.class);
    constructor.setAccessible(true);

    ClientHttpRequest reqOne = (ClientHttpRequest) constructor.newInstance(mockHttpClient, getOne, httpContext);
    ClientHttpRequest reqTwo = (ClientHttpRequest) constructor.newInstance(mockHttpClient, getTwo, httpContext);
    ClientHttpRequest reqThree = (ClientHttpRequest) constructor.newInstance(mockHttpClient, getThree,
            httpContext);

    EasyMock.expect(mockRequestFactory.createRequest(pageOne, HttpMethod.GET)).andReturn(reqOne).once();
    EasyMock.expect(mockRequestFactory.createRequest(pageTwo, HttpMethod.GET)).andReturn(reqTwo).once();
    EasyMock.expect(mockRequestFactory.createRequest(pageThree, HttpMethod.GET)).andReturn(reqThree).once();

    EasyMock.expect(mockHttpClient.execute(getOne, httpContext)).andReturn(responseOne).once();
    EasyMock.expect(mockHttpClient.execute(getTwo, httpContext)).andReturn(responseTwo).once();
    EasyMock.expect(mockHttpClient.execute(getThree, httpContext)).andReturn(responseThree).once();

    EasyMock.replay(mockHttpClient, mockRequestFactory);

    links = localApi.find(terms, Sample.class);

    EasyMock.verify(mockHttpClient, mockRequestFactory);

    assertEquals("Expected 1150 sample links returned", 1150, links.size());
}

---

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