Example usage for java.lang Class cast

List of usage examples for java.lang Class cast

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Introduction

In this page you can find the example usage for java.lang Class cast.

Prototype

@SuppressWarnings("unchecked")
@HotSpotIntrinsicCandidate
public T cast(Object obj)

Source Link

Document

Casts an object to the class or interface represented by this Class object.

Usage

From source file:com.opencsv.bean.BeanFieldDate.java

/**
 * Converts the input to/from a calendar object.
 * <p>This method should work for any type that implements
 * {@link java.util.Calendar} or is derived from
 * {@link javax.xml.datatype.XMLGregorianCalendar}. The following types are
 * explicitly supported://from w  w w  .ja  v  a 2s.  com
 * <ul><li>Calendar (always a GregorianCalendar)</li>
 * <li>GregorianCalendar</li>
 * <li>XMLGregorianCalendar</li></ul>
 * It is also known to work with
 * org.apache.xerces.jaxp.datatype.XMLGregorianCalendarImpl.</p>
 *
 * @param <U> The type to be converted to
 * @param value The string to be converted into a date/time type or vice
 *   versa
 * @param fieldType The class of the destination field
 * @return The object resulting from the conversion
 * @throws CsvDataTypeMismatchException If the conversion fails
 */
private <U> U convertCalendar(Object value, Class<U> fieldType) throws CsvDataTypeMismatchException {
    U o;

    if (value instanceof String) {
        // Parse input
        Date d;
        try {
            d = getFormat().parse((String) value);
        } catch (ParseException e) {
            CsvDataTypeMismatchException csve = new CsvDataTypeMismatchException(value, fieldType);
            csve.initCause(e);
            throw csve;
        }

        // Make a GregorianCalendar out of it, because this works for all
        // supported types, at least as an intermediate step.
        GregorianCalendar gc = new GregorianCalendar();
        gc.setTime(d);

        // XMLGregorianCalendar requires special processing.
        if (fieldType == XMLGregorianCalendar.class) {
            try {
                o = fieldType.cast(DatatypeFactory.newInstance().newXMLGregorianCalendar(gc));
            } catch (DatatypeConfigurationException e) {
                // I've never known how to handle this exception elegantly,
                // especially since I can't conceive of the circumstances
                // under which it is thrown.
                CsvDataTypeMismatchException ex = new CsvDataTypeMismatchException(
                        "It was not possible to initialize an XMLGregorianCalendar.");
                ex.initCause(e);
                throw ex;
            }
        } else {
            o = fieldType.cast(gc);
        }
    } else {
        Calendar c;
        if (value instanceof XMLGregorianCalendar) {
            c = ((XMLGregorianCalendar) value).toGregorianCalendar();
        } else if (value instanceof Calendar) {
            c = (Calendar) value;
        } else {
            throw new CsvDataTypeMismatchException(value, fieldType, NOT_DATE);
        }
        o = fieldType.cast(getFormat().format(c.getTime()));
    }

    return o;
}

From source file:edu.umn.msi.tropix.persistence.service.impl.TropixObjectServiceImpl.java

public TropixObject load(final String userId, final String objectId, final TropixObjectType type) {
    final Class<? extends TropixObject> clazz = PersistenceModelUtils.getClass(type);
    final TropixObject object = getTropixObjectDao().loadTropixObject(objectId, clazz);
    clazz.cast(object); // I cannot believe this needs to be here, try removing it.
    return object;
}

From source file:org.bytesoft.openjtcc.supports.spring.PropagateBeanFactoryImpl.java

@SuppressWarnings("unchecked")
public <T> T getBean(Class<T> interfaceClass, String beanId) {
    Object beanInst = this.applicationContext.getBean(beanId);
    if (interfaceClass.isInstance(beanInst) //
            && Compensable.class.isInstance(beanInst)//
    ) {/* w w w.java 2  s  .c om*/
        PropagateCompensableProxy<Serializable> proxy = new PropagateCompensableProxy<Serializable>();
        proxy.setBeanName(beanId);
        proxy.setTarget((Compensable<Serializable>) beanInst);
        proxy.setProxyId(atomic.incrementAndGet());
        proxy.setTransactionManager(this.transactionManager);

        ClassLoader classLoader = beanInst.getClass().getClassLoader();
        Class<?>[] interfaces = null;
        if (Compensable.class.equals(interfaceClass)) {
            interfaces = new Class[] { interfaceClass };
        } else {
            interfaces = new Class[] { interfaceClass, Compensable.class };
        }
        Object proxyInst = Proxy.newProxyInstance(classLoader, interfaces, proxy);

        proxy.setFacade((Compensable<Serializable>) proxyInst);

        return interfaceClass.cast(proxyInst);
    }
    throw new RuntimeException();
}

From source file:com.snaplogic.snaps.uniteller.BaseService.java

@Override
protected void process(Document document, String inputViewName) {
    try {// w  w  w  .j av a 2 s . co m
        AccountBean bean = account.connect();
        String UFSConfigFilePath = urlEncoder.validateAndEncodeURI(bean.getConfigFilePath(), PATTERN, null)
                .toString();
        String UFSSecurityFilePath = urlEncoder
                .validateAndEncodeURI(bean.getSecurityPermFilePath(), PATTERN, null).toString();
        /* instantiating USFCreationClient */
        Class<?> CustomUSFCreationClient = Class.forName(UFS_FOLIO_CREATION_CLIENT_PKG_URI);
        Constructor<?> constructor = CustomUSFCreationClient
                .getDeclaredConstructor(new Class[] { IUFSConfigMgr.class, IUFSSecurityMgr.class });
        Object USFCreationClientObj = constructor.newInstance(CustomUFSConfigMgr.getInstance(UFSConfigFilePath),
                CustomUFSSecurityMgr.getInstance(UFSSecurityFilePath));
        Method setAutoUpdatePsw = CustomUSFCreationClient.getDeclaredMethod("setAutoUpdatePsw", Boolean.TYPE);
        setAutoUpdatePsw.invoke(USFCreationClientObj, autoUpdatePsw);
        /* Preparing the request for USF */
        Object data;
        if (document != null && (data = document.get()) != null) {
            if (data instanceof Map) {
                Map<String, Object> map = (Map<String, Object>) data;
                Class<?> UFSRequest = Class.forName(getUFSReqClassType());
                Object UFSRequestObj = UFSRequest.newInstance();
                Object inputFieldValue = null;
                Calendar cal = Calendar.getInstance();
                for (Method method : UFSRequest.getDeclaredMethods()) {
                    if (isSetter(method)
                            && (inputFieldValue = map.get(method.getName().substring(3))) != null) {
                        try {
                            String paramType = method.getParameterTypes()[0].getName();
                            if (paramType.equalsIgnoreCase(String.class.getName())) {
                                method.invoke(UFSRequest.cast(UFSRequestObj), String.valueOf(inputFieldValue));
                            } else if (paramType.equalsIgnoreCase(Double.class.getSimpleName())) {
                                method.invoke(UFSRequest.cast(UFSRequestObj),
                                        Double.parseDouble(String.valueOf(inputFieldValue)));
                            } else if (paramType.equalsIgnoreCase(INT)) {
                                method.invoke(UFSRequest.cast(UFSRequestObj),
                                        Integer.parseInt(String.valueOf(inputFieldValue)));
                            } else if (paramType.equalsIgnoreCase(Calendar.class.getName())) {
                                try {
                                    cal.setTime(sdtf.parse(String.valueOf(inputFieldValue)));
                                } catch (ParseException pe1) {
                                    try {
                                        cal.setTime(sdf.parse(String.valueOf(inputFieldValue)));
                                    } catch (ParseException pe) {
                                        writeToErrorView(
                                                String.format(DATE_PARSER_ERROR, DATETIME_FORMAT, DATE_FORMAT),
                                                pe.getMessage(), ERROR_RESOLUTION, pe);
                                    }
                                }
                                method.invoke(UFSRequest.cast(UFSRequestObj), cal);
                            }
                        } catch (IllegalArgumentException iae) {
                            writeToErrorView(String.format(ILLEGAL_ARGS_EXE, method.getName()),
                                    iae.getMessage(), ERROR_RESOLUTION, iae);
                        } catch (InvocationTargetException ite) {
                            writeToErrorView(ite.getTargetException().getMessage(), ite.getMessage(),
                                    ERROR_RESOLUTION, ite);
                        }
                    }
                }
                /* Invoking the request over USFCreationClient */
                Object UFSResponseObj = null;
                Method creationClientMethod = CustomUSFCreationClient
                        .getMethod(getCamelCaseForMethod(resourceType), UFSRequest);
                try {
                    UFSResponseObj = creationClientMethod.invoke(USFCreationClientObj,
                            UFSRequest.cast(UFSRequestObj));
                } catch (IllegalArgumentException iae) {
                    writeToErrorView(String.format(ILLEGAL_ARGS_EXE, creationClientMethod.getName()),
                            iae.getMessage(), ERROR_RESOLUTION, iae);
                } catch (InvocationTargetException ite) {
                    writeToErrorView(ite.getTargetException().getMessage(), ite.getMessage(), ERROR_RESOLUTION,
                            ite);
                }
                if (null != UFSResponseObj) {
                    outputViews.write(documentUtility.newDocument(processResponseObj(UFSResponseObj)));
                    counter.inc();
                }
            } else {
                writeToErrorView(NO_DATA_ERRMSG, NO_DATA_WARNING, NO_DATA_REASON, NO_DATA_RESOLUTION);
            }
        }
    } catch (Exception ex) {
        writeToErrorView(ERRORMSG, ex.getMessage(), ERROR_RESOLUTION, ex);
    }
}

From source file:com.oculusinfo.factory.ConfigurableFactory.java

/**
 * Get one of the goods managed by this factory.
 * //from  w ww  .  j  a  va  2 s  .com
 * This version returns a new instance each time it is called.
 * 
 * @param name The name of the factory from which to obtain the needed
 *            goods. Null indicates that the factory name doesn't matter.
 * @param goodsType The type of goods desired.
 */
public <GT> GT produce(String name, Class<GT> goodsType) throws ConfigurationException {
    if (!_configured) {
        throw new ConfigurationException("Attempt to get value from uninitialized factory");
    }
    if ((null == name || name.equals(_name)) && goodsType.equals(_factoryType)) {
        if (_isSingleton) {
            if (null == _singletonProduct) {
                synchronized (this) {
                    if (null == _singletonProduct) {
                        _singletonProduct = create();
                    }
                }
            }
            return goodsType.cast(_singletonProduct);
        } else {
            return goodsType.cast(create());
        }
    } else {
        for (ConfigurableFactory<?> child : _children) {
            GT result = child.produce(name, goodsType);
            if (null != result)
                return result;
        }
    }
    return null;
}

From source file:com.mac.tarchan.desktop.event.EventQuery.java

/**
 * ??????????//from  ww  w.  j  av a 2s.  co  m
 * 
 * @param type ???
 * @return ????
 */
public <T> List<T> list(Class<T> type) {
    ArrayList<T> sublist = new ArrayList<T>();
    for (Component child : list) {
        if (type.isInstance(child)) {
            sublist.add(type.cast(child));
        }
    }

    return sublist;
}

From source file:de.zib.gndms.infra.system.GNDMSystem.java

public void initialize() throws RuntimeException {
    try {/*from   w  w w  .  j  av a2  s. c o m*/
        printVersion();
        containerHome = new File(System.getenv("GLOBUS_LOCATION")).getAbsoluteFile();
        logger.info("Container home directory is '" + containerHome.toString() + '\'');
        initSharedDir();
        createDirectories();
        prepareDbStorage();
        emf = createEMF();
        restrictedEmf = emf;
        tryTxExecution();
        // initialization intentionally deferred to initialize
        instanceDir = new GNDMSystemDirectory(getSystemName(), uuidGenDelegate,
                new DefaultWrapper<SystemHolder, Object>(SystemHolder.class) {

                    @Override
                    protected <Y> Y wrapInterfaceInstance(final Class<Y> wrapClass,
                            @NotNull final SystemHolder wrappedParam) {
                        wrappedParam.setSystem(GNDMSystem.this);
                        return wrapClass.cast(wrappedParam);
                    }
                }, this);
        instanceDir.addInstance("sys", this);
        instanceDir.reloadConfiglets(restrictedEmf);
        // Bad style, usually would be an inner class but
        // removed it from this source file to reduce source file size
        actionCaller = new ConfigActionCaller(this);
        logger.info("getSubGridName() /* gridconfig subGridName */ is '" + getInstanceDir().getSubGridName()
                + '\'');
    } catch (Exception e) {
        logger.error("Initialization failed", e);
        throw new RuntimeException(e);
    }
}

From source file:bi.meteorite.util.ITestBootstrap.java

protected <T> T getOsgiService(Class<T> type, String filter, long timeout) {
    ServiceTracker tracker = null;/*from   w w w. ja  v a  2s.  c  o m*/
    try {
        String flt;
        if (filter != null) {
            if (filter.startsWith("(")) {
                flt = "(&(" + Constants.OBJECTCLASS + "=" + type.getName() + ")" + filter + ")";
            } else {
                flt = "(&(" + Constants.OBJECTCLASS + "=" + type.getName() + ")(" + filter + "))";
            }
        } else {
            flt = "(" + Constants.OBJECTCLASS + "=" + type.getName() + ")";
        }
        Filter osgiFilter = FrameworkUtil.createFilter(flt);
        tracker = new ServiceTracker(bundleContext, osgiFilter, null);
        tracker.open(true);
        // Note that the tracker is not closed to keep the reference
        // This is buggy, as the service reference may change i think
        Object svc = type.cast(tracker.waitForService(timeout));
        if (svc == null) {
            Dictionary dic = bundleContext.getBundle().getHeaders();
            //System.err.println("Test bundle headers: " + TestUtility.explode(dic));

            //for (ServiceReference ref : TestUtility.asCollection(bundleContext.getAllServiceReferences(null, null))) {
            //System.err.println("ServiceReference: " + ref);
            //}

            //for (ServiceReference ref : TestUtility.asCollection(bundleContext.getAllServiceReferences(null, flt))) {
            //          System.err.println("Filtered ServiceReference: " + ref);
            //      }

            throw new RuntimeException("Gave up waiting for service " + flt);
        }
        return type.cast(svc);
    } catch (InvalidSyntaxException e) {
        throw new IllegalArgumentException("Invalid filter", e);
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
}

From source file:com.sap.core.odata.core.edm.EdmBinary.java

@Override
protected <T> T internalValueOfString(final String value, final EdmLiteralKind literalKind,
        final EdmFacets facets, final Class<T> returnType) throws EdmSimpleTypeException {
    if (!validateLiteral(value, literalKind)) {
        throw new EdmSimpleTypeException(EdmSimpleTypeException.LITERAL_ILLEGAL_CONTENT.addContent(value));
    }/*w  w  w .j  a  v a 2 s . c om*/
    if (!validateMaxLength(value, literalKind, facets)) {
        throw new EdmSimpleTypeException(
                EdmSimpleTypeException.LITERAL_FACETS_NOT_MATCHED.addContent(value, facets));
    }

    byte[] result;
    if (literalKind == EdmLiteralKind.URI) {
        try {
            result = Hex.decodeHex(
                    value.substring(value.startsWith("X") ? 2 : 7, value.length() - 1).toCharArray());
        } catch (final DecoderException e) {
            throw new EdmSimpleTypeException(EdmSimpleTypeException.LITERAL_ILLEGAL_CONTENT.addContent(value),
                    e);
        }
    } else {
        result = Base64.decodeBase64(value);
    }

    if (returnType.isAssignableFrom(byte[].class)) {
        return returnType.cast(result);
    } else if (returnType.isAssignableFrom(Byte[].class)) {
        Byte[] byteArray = new Byte[result.length];
        for (int i = 0; i < result.length; i++) {
            byteArray[i] = result[i];
        }
        return returnType.cast(byteArray);
    } else {
        throw new EdmSimpleTypeException(
                EdmSimpleTypeException.VALUE_TYPE_NOT_SUPPORTED.addContent(returnType));
    }
}

From source file:com.hortonworks.streamline.streams.catalog.topology.component.TopologyComponentFactory.java

private <T extends StreamlineComponent> T getStreamlineComponent(Class<T> clazz,
        TopologyComponent topologyComponent) {
    TopologyComponentBundle topologyComponentBundle = getTopologyComponentBundle(topologyComponent);
    StreamlineComponent component = getProvider(clazz, topologyComponentBundle.getSubType())
            .create(topologyComponent);/*from  w  ww.j  a v a  2  s .  co m*/
    component.setId(topologyComponent.getId().toString());
    component.setName(topologyComponent.getName());
    component.setConfig(topologyComponent.getConfig());
    component.setTopologyComponentBundleId(topologyComponentBundle.getId().toString());
    component.setTransformationClass(topologyComponentBundle.getTransformationClass());
    return clazz.cast(component);
}