List of usage examples for java.lang Class newInstance
@CallerSensitive @Deprecated(since = "9") public T newInstance() throws InstantiationException, IllegalAccessException
From source file:com.sqewd.open.dal.core.persistence.db.EntityHelper.java
@SuppressWarnings({ "unchecked", "rawtypes" })
public static void setColumnValue(final ResultSet rs, final StructAttributeReflect attr,
final AbstractEntity entity, final AbstractJoinGraph gr, final Stack<KeyValuePair<Class<?>>> path)
throws Exception {
KeyValuePair<String> alias = gr.getAliasFor(path, attr.Column, 0);
String tabprefix = alias.getKey();
if (EnumPrimitives.isPrimitiveType(attr.Field.getType())) {
EnumPrimitives prim = EnumPrimitives.type(attr.Field.getType());
switch (prim) {
case ECharacter:
String sv = rs.getString(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), sv.charAt(0));
}// www . ja v a 2 s .c om
break;
case EShort:
short shv = rs.getShort(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), shv);
}
break;
case EInteger:
int iv = rs.getInt(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), iv);
}
break;
case ELong:
long lv = rs.getLong(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), lv);
}
break;
case EFloat:
float fv = rs.getFloat(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), fv);
}
break;
case EDouble:
double dv = rs.getDouble(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), dv);
}
break;
default:
throw new Exception("Unsupported Data type [" + prim.name() + "]");
}
} else if (attr.Convertor != null) {
String value = rs.getString(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
attr.Convertor.load(entity, attr.Column, value);
}
} else if (attr.Field.getType().equals(String.class)) {
String value = rs.getString(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), value);
}
} else if (attr.Field.getType().equals(Date.class)) {
long value = rs.getLong(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
Date dt = new Date(value);
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), dt);
}
} else if (attr.Field.getType().isEnum()) {
String value = rs.getString(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
Class ecls = attr.Field.getType();
Object evalue = Enum.valueOf(ecls, value);
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), evalue);
}
} else if (attr.Reference != null) {
Class<?> rt = Class.forName(attr.Reference.Class);
Object obj = rt.newInstance();
if (!(obj instanceof AbstractEntity))
throw new Exception("Unsupported Entity type [" + rt.getCanonicalName() + "]");
AbstractEntity rentity = (AbstractEntity) obj;
if (path.size() > 0) {
path.peek().setKey(attr.Column);
}
KeyValuePair<Class<?>> cls = new KeyValuePair<Class<?>>();
cls.setValue(rentity.getClass());
path.push(cls);
setEntity(rentity, rs, gr, path);
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), rentity);
path.pop();
}
}
From source file:com.asakusafw.testdriver.tools.runner.BatchTestTruncator.java
private static void resolveBatch(Conf conf, Class<? extends BatchDescription> aClass) { LOG.debug("analyzing batch: {}", aClass.getName()); //$NON-NLS-1$ List<Class<? extends FlowDescription>> flows = new ArrayList<>(); try {// w w w .j a v a 2 s. c o m BatchDescription batch = aClass.newInstance(); batch.start(); for (Work work : batch.getWorks()) { WorkDescription desc = work.getDescription(); if (desc instanceof JobFlowWorkDescription) { Class<? extends FlowDescription> flow = ((JobFlowWorkDescription) desc).getFlowClass(); flows.add(flow); } } } catch (ReflectiveOperationException e) { throw new IllegalArgumentException( MessageFormat.format(Messages.getString("BatchTestTruncator.errorInvalidBatchClass"), //$NON-NLS-1$ aClass.getName())); } for (Class<? extends FlowDescription> flow : flows) { resolveFlow(conf, flow); } }
From source file:com.ixcode.framework.model.lookup.LookupHandler.java
private static IPagedQuery instantiateQuery(Class serverQueryClass, IServerQueryParameters serverQueryParameters, int serverPageSize, int displayPageSize) throws ServletException { try {/*from www . j av a2 s .c o m*/ IServerQuery serverQuery = (IServerQuery) serverQueryClass.newInstance(); return new PagedQuery(serverQuery, serverPageSize, displayPageSize, serverQueryParameters); } catch (IllegalAccessException e) { throw new ServletExceptionWrapper(e); } catch (InstantiationException e) { throw new ServletExceptionWrapper(e); } }
From source file:com.sqewd.open.dal.core.persistence.db.EntityHelper.java
@SuppressWarnings({ "rawtypes", "unchecked" })
public static Object getColumnValue(final ResultSet rs, final StructAttributeReflect attr,
final AbstractEntity entity, final AbstractJoinGraph gr, final Stack<KeyValuePair<Class<?>>> path)
throws Exception {
Object value = null;//from w w w . j ava 2 s. c o m
KeyValuePair<String> alias = gr.getAliasFor(path, attr.Column, 0);
String tabprefix = alias.getKey();
if (EnumPrimitives.isPrimitiveType(attr.Field.getType())) {
EnumPrimitives prim = EnumPrimitives.type(attr.Field.getType());
switch (prim) {
case ECharacter:
String sv = rs.getString(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), sv.charAt(0));
}
break;
case EShort:
short shv = rs.getShort(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), shv);
}
break;
case EInteger:
int iv = rs.getInt(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), iv);
}
break;
case ELong:
long lv = rs.getLong(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), lv);
}
break;
case EFloat:
float fv = rs.getFloat(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), fv);
}
break;
case EDouble:
double dv = rs.getDouble(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
PropertyUtils.setSimpleProperty(entity, attr.Field.getName(), dv);
}
break;
default:
throw new Exception("Unsupported Data type [" + prim.name() + "]");
}
} else if (attr.Convertor != null) {
// TODO : Not supported at this time.
value = rs.getString(tabprefix + "." + attr.Column);
} else if (attr.Field.getType().equals(String.class)) {
value = rs.getString(tabprefix + "." + attr.Column);
if (rs.wasNull()) {
value = null;
}
} else if (attr.Field.getType().equals(Date.class)) {
long lvalue = rs.getLong(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
Date dt = new Date(lvalue);
value = dt;
}
} else if (attr.Field.getType().isEnum()) {
String svalue = rs.getString(tabprefix + "." + attr.Column);
if (!rs.wasNull()) {
Class ecls = attr.Field.getType();
value = Enum.valueOf(ecls, svalue);
}
} else if (attr.Reference != null) {
Class<?> rt = Class.forName(attr.Reference.Class);
Object obj = rt.newInstance();
if (!(obj instanceof AbstractEntity))
throw new Exception("Unsupported Entity type [" + rt.getCanonicalName() + "]");
AbstractEntity rentity = (AbstractEntity) obj;
if (path.size() > 0) {
path.peek().setKey(attr.Column);
}
KeyValuePair<Class<?>> cls = new KeyValuePair<Class<?>>();
cls.setValue(rentity.getClass());
path.push(cls);
setEntity(rentity, rs, gr, path);
value = rentity;
path.pop();
}
return value;
}
From source file:com.mmj.app.lucene.solr.client.SolrClient.java
public static Object toBean(SolrDocument record, Class<?> clazz) { Object o = null;//from w w w.ja v a2 s. c om try { o = clazz.newInstance(); } catch (InstantiationException e1) { e1.printStackTrace(); } catch (IllegalAccessException e1) { e1.printStackTrace(); } Field[] fields = clazz.getDeclaredFields(); for (Field field : fields) { Object value = record.get(field.getName()); ConvertUtils.register(new DateConverter(null), java.util.Date.class); try { BeanUtils.setProperty(o, field.getName(), value); } catch (IllegalAccessException e) { e.printStackTrace(); } catch (InvocationTargetException e) { e.printStackTrace(); } } return o; }
From source file:com.jhkt.playgroundArena.db.nosql.mongodb.beans.AbstractDocument.java
private final static Object convertBacktoClassInstanceHelper(DBObject dBObject) { Object returnValue = null;// w ww . ja va2s . c o m try { String className = dBObject.get(JPAConstants.CONVERTER_CLASS.CLASS.name()).toString(); Class<?> classCheck = Class.forName(className); if (AbstractDocument.class.isAssignableFrom(classCheck)) { Class<? extends AbstractDocument> classToConvertTo = classCheck.asSubclass(AbstractDocument.class); AbstractDocument dInstance = classToConvertTo.newInstance(); for (String key : dBObject.keySet()) { Object value = dBObject.get(key); char[] propertyChars = key.toCharArray(); String methodMain = String.valueOf(propertyChars[0]).toUpperCase() + key.substring(1); String methodName = "set" + methodMain; String getMethodName = "get" + methodMain; if (key.equals(JPAConstants.CONVERTER_CLASS.CLASS.name())) { continue; } if (value instanceof BasicDBObject) { value = convertBacktoClassInstanceHelper(BasicDBObject.class.cast(value)); } try { Method getMethod = classToConvertTo.getMethod(getMethodName); Class<?> getReturnType = getMethod.getReturnType(); Method method = classToConvertTo.getMethod(methodName, getReturnType); if (getMethod.isAnnotationPresent(IDocumentKeyValue.class)) { method.invoke(dInstance, value); } } catch (NoSuchMethodException nsMe) { _log.warn("Within convertBacktoClassInstance, following method was not found " + methodName, nsMe); } } returnValue = dInstance; } else if (Enum.class.isAssignableFrom(classCheck)) { List<?> constants = Arrays.asList(classCheck.getEnumConstants()); String name = String.class.cast(dBObject.get(JPAConstants.CONVERTER_CLASS.CONTENT.name())); for (Object constant : constants) { if (constant.toString().equals(name)) { returnValue = constant; } } } else if (Collection.class.isAssignableFrom(classCheck)) { @SuppressWarnings("unchecked") Class<? extends Collection<? super Object>> classToConvertTo = (Class<? extends Collection<? super Object>>) classCheck; Collection<? super Object> cInstance = classToConvertTo.newInstance(); BasicDBList bDBList = (BasicDBList) dBObject.get(JPAConstants.CONVERTER_CLASS.CONTENT.name()); cInstance.addAll(bDBList); returnValue = cInstance; } else if (Map.class.isAssignableFrom(classCheck)) { @SuppressWarnings("unchecked") Class<? extends Map<String, ? super Object>> classToConvertTo = (Class<? extends Map<String, ? super Object>>) classCheck; Map<String, ? super Object> mInstance = classToConvertTo.newInstance(); BasicDBObject mapObject = (BasicDBObject) dBObject.get(JPAConstants.CONVERTER_CLASS.CONTENT.name()); mInstance.putAll(mapObject); returnValue = mInstance; } } catch (Exception e) { throw new RuntimeException(e); } return returnValue; }
From source file:org.codehaus.griffon.runtime.spring.GriffonRuntimeConfigurator.java
public static BeanBuilder reloadSpringResourcesConfig(GriffonApplication application, BeanBuilder beanBuilder, Class<?> groovySpringResourcesClass) throws InstantiationException, IllegalAccessException { beanBuilder.setBinding(new Binding(CollectionUtils.newMap("application", application))); Script script = (Script) groovySpringResourcesClass.newInstance(); script.run();/*from ww w. j av a 2s . c om*/ Object beans = script.getProperty("beans"); beanBuilder.beans((Closure<?>) beans); return beanBuilder; }
From source file:edu.vt.middleware.gator.log4j.Log4jConfigUtils.java
/** * Instantiate a new instance of the given class name. * * @param <T> Type of class to instantiate. * @param clazz Class of type to instantiate. * @param name Fully-qualified class name. * * @return New instance of specified class. * * @throws ConfigurationException On configuration errors. *///from w ww .j a v a 2 s .c o m public static <T> T instantiate(final Class<T> clazz, final String name) throws ConfigurationException { Class<?> c; try { LOGGER.trace("Instantiating new instance of " + name); c = Class.forName(name); } catch (ClassNotFoundException e) { throw new ConfigurationException(String.format("Class %s not found.", name)); } try { return clazz.cast(c.newInstance()); } catch (InstantiationException e) { throw new ConfigurationException(String.format("Cannot instantiate %s.", name), e); } catch (IllegalAccessException e) { throw new ConfigurationException( String.format("Cannot instantiate %s -- constructor not accessible.", name), e); } catch (ClassCastException e) { throw new ConfigurationException(String.format("%s is not an instance of %s", name, clazz), e); } }
From source file:com.linkedin.pinot.routing.RoutingTableSelectorFactory.java
public static RoutingTableSelector getRoutingTableSelector(Configuration config) { RoutingTableSelector routingTableSelector = new PercentageBasedRoutingTableSelector(); if (config == null) { LOGGER.warn("No config for routing table selector. Using default"); } else {/*ww w. ja v a 2 s . co m*/ String selectorClassName = null; try { selectorClassName = (String) config.getProperty(CLASSNAME_KEY); } catch (Exception e) { LOGGER.warn("Could not parse property '{}'. Using {}", CLASSNAME_KEY, defaultClasssName, e); } Class<? extends RoutingTableSelector> clazz; if (selectorClassName == null || selectorClassName.isEmpty()) { LOGGER.info("Null or empty selector class name. Using default"); } else { try { clazz = (Class<? extends RoutingTableSelector>) Class.forName(selectorClassName); routingTableSelector = clazz.newInstance(); } catch (ClassNotFoundException e) { LOGGER.warn("Could not load '{}'. Loading {}", selectorClassName, defaultClasssName, e); } catch (InstantiationException e) { LOGGER.warn("Could not instantiate '{}'. Instantiating {}", selectorClassName, defaultClasssName, e); } catch (IllegalAccessException e) { LOGGER.warn("Could not instantiate '{}'. Instantiating {}", selectorClassName, defaultClasssName, e); } } } routingTableSelector.init(config); return routingTableSelector; }
From source file:com.springframework.core.io.support.SpringFactoriesLoader.java
@SuppressWarnings("unchecked") private static <T> T instantiateFactory(String instanceClassName, Class<T> factoryClass, ClassLoader classLoader) { try {//ww w .j a v a2 s . c o m Class<?> instanceClass = ClassUtils.forName(instanceClassName, classLoader); if (!factoryClass.isAssignableFrom(instanceClass)) { throw new IllegalArgumentException( "Class [" + instanceClassName + "] is not assignable to [" + factoryClass.getName() + "]"); } return (T) instanceClass.newInstance(); } catch (Throwable ex) { throw new IllegalArgumentException("Cannot instantiate factory class: " + factoryClass.getName(), ex); } }