Example usage for java.lang Class getDeclaredField

List of usage examples for java.lang Class getDeclaredField

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Introduction

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

Prototype

@CallerSensitive
public Field getDeclaredField(String name) throws NoSuchFieldException, SecurityException

Source Link

Document

Returns a Field object that reflects the specified declared field of the class or interface represented by this Class object.

Usage

From source file:com.github.gekoh.yagen.api.DefaultNamingStrategy.java

@Override
public String classToTableShortName(String className) {
    try {//from w  ww .  j av  a2s.  c  o m
        Class<?> aClass = Class.forName(className);
        String tableShortName = null;
        if (aClass.isAnnotationPresent(Table.class)) {
            tableShortName = aClass.getAnnotation(Table.class).shortName();
        }
        if (StringUtils.isEmpty(tableShortName)) {
            try {
                Field tblShortNameField = aClass.getDeclaredField("TABLE_NAME_SHORT");
                if (tblShortNameField != null) {
                    tableShortName = tblShortNameField.get(null).toString();
                }
            } catch (Exception ignore) {
            }
        }
        if (StringUtils.isEmpty(tableShortName)) {
            tableShortName = tableShortNameFromTableName(classToTableName(className));
        }
        return tableShortName(tableShortName);
    } catch (ClassNotFoundException e) {
        throw new IllegalStateException("cannot get table short name from class " + className, e);
    }
}

From source file:org.jsonschema2pojo.integration.config.IncludeAccessorsIT.java

@Test
public void beansOmitGettersAndSettersWhenAccessorsAreDisabled()
        throws ClassNotFoundException, SecurityException, NoSuchMethodException, NoSuchFieldException {

    ClassLoader resultsClassLoader = schemaRule.generateAndCompile(
            "/schema/properties/primitiveProperties.json", "com.example", config("includeAccessors", false));

    Class generatedType = resultsClassLoader.loadClass("com.example.PrimitiveProperties");

    try {/*from  ww w.  ja  va 2  s. c o m*/
        generatedType.getDeclaredMethod("getA");
        fail("Disabled accessors but getter was generated");
    } catch (NoSuchMethodException e) {
    }

    try {
        generatedType.getDeclaredMethod("setA", Integer.class);
        fail("Disabled accessors but getter was generated");
    } catch (NoSuchMethodException e) {
    }

    assertThat(generatedType.getDeclaredField("a").getModifiers(), is(Modifier.PUBLIC));

}

From source file:gov.nih.nci.iso21090.hibernate.tuple.IsoConstantTuplizerHelper.java

/**
 * Finds field in class by going to super class.
 * @param klass klass in which the filedName is to be searched
 * @param fieldName name of the field to be retrieved
 * @return Field or exception/*from  w ww  . j  ava  2  s.  c o m*/
 */
@SuppressWarnings("PMD.EmptyCatchBlock")
public Field findFieldInClass(Class klass, String fieldName) {
    Class tempKlass = klass;
    while (tempKlass != null && Object.class != tempKlass) {
        try {
            Field field = tempKlass.getDeclaredField(fieldName);
            if (field != null) {
                return field;
            }
        } catch (SecurityException e) {
            //No operation
        } catch (NoSuchFieldException e) {
            //No operation                
        }

        tempKlass = tempKlass.getSuperclass();
    }
    throw new HibernateException("No field found in class " + klass.getName() + " for " + fieldName);
}

From source file:net.chaosserver.timelord.swingui.engine.BringToFrontThread.java

/**
 * Trigger an annoy by un-minimizing the window and bringing it to the
 * front./*from w  w w  .  j a  v  a  2s . c om*/
 */
protected void annoy() {
    lastAnnoy = System.currentTimeMillis();
    getFrame().setExtendedState(Frame.NORMAL);
    getFrame().toFront();
    getTimelord().showTodayTab();

    // This bounces the Dock in Panther/Tiger
    try {
        Class<?> nsApplicationClass = Class.forName("com.apple.cocoa.application.NSApplication");

        Method sharedAppMethod = nsApplicationClass.getDeclaredMethod("sharedApplication", new Class[] {});

        Object nsApplicationObject = sharedAppMethod.invoke(null, new Object[] {});

        Field userAttentionRequestCriticalField = nsApplicationClass
                .getDeclaredField("UserAttentionRequestCritical");

        Method requestUserAttentionMethod = nsApplicationClass.getDeclaredMethod("requestUserAttention",
                new Class[] { userAttentionRequestCriticalField.getType() });

        requestUserAttentionMethod.invoke(nsApplicationObject,
                new Object[] { userAttentionRequestCriticalField.get(null) });
    } catch (Exception e) {
        if (log.isDebugEnabled()) {
            log.debug("Issue bouncing dock", e);
        }
    }

    if (log.isTraceEnabled()) {
        log.trace("Bringing Window to Front");
    }
}

From source file:com.github.sakserv.minicluster.impl.KdcLocalCluster.java

protected void refreshDefaultRealm() throws Exception {
    // Config is statically initialized at this point. But the above configuration results in a different
    // initialization which causes the tests to fail. So the following two changes are required.

    // (1) Refresh Kerberos config.
    // refresh the config
    Class<?> configClass;/* w w  w .  j av  a2s.c  om*/
    if (System.getProperty("java.vendor").contains("IBM")) {
        configClass = Class.forName("com.ibm.security.krb5.internal.Config");
    } else {
        configClass = Class.forName("sun.security.krb5.Config");
    }
    Method refreshMethod = configClass.getMethod("refresh", new Class[0]);
    refreshMethod.invoke(configClass, new Object[0]);
    // (2) Reset the default realm.
    try {
        Class<?> hadoopAuthClass = Class.forName("org.apache.hadoop.security.authentication.util.KerberosName");
        Field defaultRealm = hadoopAuthClass.getDeclaredField("defaultRealm");
        defaultRealm.setAccessible(true);
        defaultRealm.set(null, KerberosUtil.getDefaultRealm());
        LOG.info("HADOOP: Using default realm " + KerberosUtil.getDefaultRealm());
    } catch (ClassNotFoundException e) {
        // Don't care
        LOG.info(
                "Class org.apache.hadoop.security.authentication.util.KerberosName not found, Kerberos default realm not updated");
    }

    try {
        Class<?> zookeeperAuthClass = Class.forName("org.apache.zookeeper.server.auth.KerberosName");
        Field defaultRealm = zookeeperAuthClass.getDeclaredField("defaultRealm");
        defaultRealm.setAccessible(true);
        defaultRealm.set(null, KerberosUtil.getDefaultRealm());
        LOG.info("ZOOKEEPER: Using default realm " + KerberosUtil.getDefaultRealm());
    } catch (ClassNotFoundException e) {
        // Don't care
        LOG.info(
                "Class org.apache.zookeeper.server.auth.KerberosName not found, Kerberos default realm not updated");
    }
}

From source file:org.suren.autotest.web.framework.data.ExcelDataSource.java

/**
 * ??/*from  w  ww . j  ava2 s  .  c om*/
 * @param row
 */
private void cellParse(Row row) {
    Class<?> targetCls = targetPage.getClass();

    Cell nameCell = row.getCell(0);
    Cell dataCell = row.getCell(1);

    if (nameCell == null || dataCell == null) {
        return;
    }

    try {
        String fieldName = getStrFromCell(nameCell);
        if (StringUtils.isBlank(fieldName)) {
            return;
        }

        Field field = targetCls.getDeclaredField(fieldName);
        field.setAccessible(true);

        setValue(field, targetPage, getStrFromCell(dataCell));
    } catch (NoSuchFieldException | SecurityException e) {
        e.printStackTrace();
    } catch (IllegalArgumentException e) {
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        e.printStackTrace();
    } catch (NoSuchMethodException e) {
        e.printStackTrace();
    } catch (InvocationTargetException e) {
        e.printStackTrace();
    }
}

From source file:org.grails.orm.hibernate.SessionFactoryProxy.java

private void updateCurrentSessionContext(SessionFactory sessionFactory) {
    // patch the currentSessionContext variable of SessionFactoryImpl to use this proxy as the key
    CurrentSessionContext ssc = createCurrentSessionContext();
    if (ssc instanceof GrailsSessionContext) {
        ((GrailsSessionContext) ssc).initJta();
    }/*from  w ww  . j  av a 2s . c  o m*/

    try {
        Class<? extends SessionFactory> sessionFactoryClass = sessionFactory.getClass();
        Field currentSessionContextField = sessionFactoryClass.getDeclaredField("currentSessionContext");
        if (currentSessionContextField != null) {
            ReflectionUtils.makeAccessible(currentSessionContextField);
            currentSessionContextField.set(sessionFactory, ssc);
        }
    } catch (NoSuchFieldException e) {
        // ignore
    } catch (SecurityException e) {
        // ignore
    } catch (IllegalArgumentException e) {
        // ignore
    } catch (IllegalAccessException e) {
        // ignore
    }
}

From source file:com.bfd.harpc.config.ServerConfig.java

/**
 * ??iface//from  w w w  . j a v  a 2 s . c  om
 * <p>
 * 
 * @return {@link Responder}
 */
@SuppressWarnings("rawtypes")
protected Class reflectProtocolClass() {
    Class serviceClass = getRef().getClass();
    Class<?>[] interfaces = serviceClass.getInterfaces();
    if (interfaces.length == 0) {
        throw new RpcException("Service class should implements avro's interface!");
    }

    // ?Responder
    for (Class clazz : interfaces) {
        try {
            clazz.getDeclaredField("PROTOCOL").get(null);
            return clazz;
            // return new SpecificResponder(clazz, ref);
        } catch (Exception e) {
        }
    }
    throw new RpcException("Service class should implements avro's interface!");
}

From source file:com.liferay.portal.configuration.ConfigurationImpl.java

public void addProperties(Properties properties) {
    try {//from w ww. j a v  a  2s.com
        ComponentProperties componentProperties = _componentConfiguration.getProperties();

        AggregatedProperties aggregatedProperties = (AggregatedProperties) componentProperties
                .toConfiguration();

        Field field1 = CompositeConfiguration.class.getDeclaredField("configList");

        field1.setAccessible(true);

        // Add to configList of base conf

        List<Configuration> configurations = (List<Configuration>) field1.get(aggregatedProperties);

        MapConfiguration newConfiguration = new MapConfiguration(properties);

        configurations.add(0, newConfiguration);

        // Add to configList of AggregatedProperties itself

        Class<?> clazz = aggregatedProperties.getClass();

        Field field2 = clazz.getDeclaredField("baseConf");

        field2.setAccessible(true);

        CompositeConfiguration compositeConfiguration = (CompositeConfiguration) field2
                .get(aggregatedProperties);

        configurations = (List<Configuration>) field1.get(compositeConfiguration);

        configurations.add(0, newConfiguration);

        clearCache();
    } catch (Exception e) {
        _log.error("The properties could not be added", e);
    }
}

From source file:io.druid.guice.JsonConfigurator.java

public <T> T configurate(Properties props, String propertyPrefix, Class<T> clazz) throws ProvisionException {
    verifyClazzIsConfigurable(clazz);//w ww . ja  v  a  2  s  . c  o m

    // Make it end with a period so we only include properties with sub-object thingies.
    final String propertyBase = propertyPrefix.endsWith(".") ? propertyPrefix : propertyPrefix + ".";

    Map<String, Object> jsonMap = Maps.newHashMap();
    for (String prop : props.stringPropertyNames()) {
        if (prop.startsWith(propertyBase)) {
            final String propValue = props.getProperty(prop);
            Object value;
            try {
                // If it's a String Jackson wants it to be quoted, so check if it's not an object or array and quote.
                String modifiedPropValue = propValue;
                if (!(modifiedPropValue.startsWith("[") || modifiedPropValue.startsWith("{"))) {
                    modifiedPropValue = String.format("\"%s\"", modifiedPropValue);
                }
                value = jsonMapper.readValue(modifiedPropValue, Object.class);
            } catch (IOException e) {
                log.info(e, "Unable to parse [%s]=[%s] as a json object, using as is.", prop, propValue);
                value = propValue;
            }

            jsonMap.put(prop.substring(propertyBase.length()), value);
        }
    }

    final T config;
    try {
        config = jsonMapper.convertValue(jsonMap, clazz);
    } catch (IllegalArgumentException e) {
        throw new ProvisionException(
                String.format("Problem parsing object at prefix[%s]: %s.", propertyPrefix, e.getMessage()), e);
    }

    final Set<ConstraintViolation<T>> violations = validator.validate(config);
    if (!violations.isEmpty()) {
        List<String> messages = Lists.newArrayList();

        for (ConstraintViolation<T> violation : violations) {
            String path = "";
            try {
                Class<?> beanClazz = violation.getRootBeanClass();
                final Iterator<Path.Node> iter = violation.getPropertyPath().iterator();
                while (iter.hasNext()) {
                    Path.Node next = iter.next();
                    if (next.getKind() == ElementKind.PROPERTY) {
                        final String fieldName = next.getName();
                        final Field theField = beanClazz.getDeclaredField(fieldName);

                        if (theField.getAnnotation(JacksonInject.class) != null) {
                            path = String.format(" -- Injected field[%s] not bound!?", fieldName);
                            break;
                        }

                        JsonProperty annotation = theField.getAnnotation(JsonProperty.class);
                        final boolean noAnnotationValue = annotation == null
                                || Strings.isNullOrEmpty(annotation.value());
                        final String pathPart = noAnnotationValue ? fieldName : annotation.value();
                        if (path.isEmpty()) {
                            path += pathPart;
                        } else {
                            path += "." + pathPart;
                        }
                    }
                }
            } catch (NoSuchFieldException e) {
                throw Throwables.propagate(e);
            }

            messages.add(String.format("%s - %s", path, violation.getMessage()));
        }

        throw new ProvisionException(Iterables.transform(messages, new Function<String, Message>() {
            @Nullable
            @Override
            public Message apply(@Nullable String input) {
                return new Message(String.format("%s%s", propertyBase, input));
            }
        }));
    }

    log.info("Loaded class[%s] from props[%s] as [%s]", clazz, propertyBase, config);

    return config;
}