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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.axis2.databinding.utils;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMAttribute;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMFactory;
import org.apache.axiom.om.OMText;
import org.apache.axiom.om.impl.builder.StAXOMBuilder;
import org.apache.axiom.om.impl.llom.factory.OMXMLBuilderFactory;
import org.apache.axiom.om.util.Base64;
import org.apache.axis2.AxisFault;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.databinding.typemapping.SimpleTypeMapper;
import org.apache.axis2.databinding.utils.reader.ADBXMLStreamReaderImpl;
import org.apache.axis2.deployment.util.BeanExcludeInfo;
import org.apache.axis2.deployment.util.ExcludeInfo;
import org.apache.axis2.description.AxisService;
import org.apache.axis2.description.java2wsdl.TypeTable;
import org.apache.axis2.engine.ObjectSupplier;
import org.apache.axis2.util.Loader;
import org.apache.axis2.util.StreamWrapper;
import org.codehaus.jam.JClass;
import org.codehaus.jam.JProperty;
import org.codehaus.jam.JamClassIterator;
import org.codehaus.jam.JamService;
import org.codehaus.jam.JamServiceFactory;
import org.codehaus.jam.JamServiceParams;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamReader;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Array;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Locale;
public class BeanUtil {
private static int nsCount = 1;
/**
* To Serilize Bean object this method is used, this will create an object array using given
* bean object
*
*/
public static XMLStreamReader getPullParser(Object beanObject,
QName beanName,
TypeTable typeTable,
boolean qualified,
boolean processingDocLitBare) {
try {
JamServiceFactory factory = JamServiceFactory.getInstance();
JamServiceParams jam_service_parms = factory.createServiceParams();
ClassLoader cl = beanObject.getClass().getClassLoader();
if (cl == null)
cl = ClassLoader.getSystemClassLoader();
jam_service_parms.addClassLoader(cl);
jam_service_parms.includeClass(beanObject.getClass().getName());
JamService service = factory.createService(jam_service_parms);
JamClassIterator jClassIter = service.getClasses();
JClass jClass;
if (jClassIter.hasNext()) {
jClass = (JClass)jClassIter.next();
} else {
throw new AxisFault("No service class found , exception from JAM");
}
QName elemntNameSpace = null;
if (typeTable != null && qualified) {
QName qNamefortheType =
typeTable.getQNamefortheType(beanObject.getClass().getName());
if (qNamefortheType == null) {
qNamefortheType = typeTable.getQNamefortheType(
beanObject.getClass().getPackage().getName());
}
if (qNamefortheType == null) {
throw new AxisFault("Mapping qname not fond for the package: " +
beanObject.getClass().getPackage().getName());
}
elemntNameSpace = new QName(qNamefortheType.getNamespaceURI(),
"elementName");
}
AxisService axisService = null;
if (MessageContext.getCurrentMessageContext() != null) {
axisService = MessageContext.getCurrentMessageContext().getAxisService();
}
BeanExcludeInfo beanExcludeInfo = null;
if (axisService != null && axisService.getExcludeInfo() != null) {
beanExcludeInfo = axisService.getExcludeInfo().getBeanExcludeInfoForClass(
jClass.getQualifiedName());
}
// properties from JAM
ArrayList propertyList = new ArrayList();
JProperty properties [] = jClass.getDeclaredProperties();
for (int i = 0; i < properties.length; i++) {
JProperty property = properties[i];
String propertyName = getCorrectName(property.getSimpleName());
if ((beanExcludeInfo == null) || !beanExcludeInfo.isExcludedProperty(propertyName)){
propertyList.add(property);
}
}
JClass supClass = jClass.getSuperclass();
while (!supClass.getQualifiedName().startsWith("java.")) {
properties = supClass.getDeclaredProperties();
ExcludeInfo excludeInfo = axisService.getExcludeInfo();
if (excludeInfo != null) {
beanExcludeInfo = excludeInfo.getBeanExcludeInfoForClass(supClass.getQualifiedName());
}
for (int i = 0; i < properties.length; i++) {
JProperty property = properties[i];
String propertyName = getCorrectName(property.getSimpleName());
if ((beanExcludeInfo == null) || !beanExcludeInfo.isExcludedProperty(propertyName)) {
propertyList.add(property);
}
}
supClass = supClass.getSuperclass();
}
properties = new JProperty[propertyList.size()];
for (int i = 0; i < propertyList.size(); i++) {
JProperty jProperty = (JProperty)propertyList.get(i);
properties[i] = jProperty;
}
Arrays.sort(properties);
BeanInfo beanInfo = Introspector.getBeanInfo(beanObject.getClass());
PropertyDescriptor [] propDescs = beanInfo.getPropertyDescriptors();
HashMap propertMap = new HashMap();
for (int i = 0; i < propDescs.length; i++) {
PropertyDescriptor propDesc = propDescs[i];
if (propDesc.getName().equals("class")) {
continue;
}
propertMap.put(propDesc.getName(), propDesc);
}
ArrayList object = new ArrayList();
for (int i = 0; i < properties.length; i++) {
JProperty property = properties[i];
PropertyDescriptor propDesc = (PropertyDescriptor)propertMap.get(
getCorrectName(property.getSimpleName()));
if (propDesc == null) {
propDesc = (PropertyDescriptor)propertMap.get(
(property.getSimpleName()));
}
if (propDesc == null) {
continue;
}
Class ptype = propDesc.getPropertyType();
if (propDesc.getName().equals("class")) {
continue;
}
if (SimpleTypeMapper.isSimpleType(ptype)) {
Method readMethod = propDesc.getReadMethod();
Object value;
if(readMethod!=null){
if (property.getGetter() !=null && property.getGetter().isPublic()){
readMethod.setAccessible(true);
}
value = readMethod.invoke(beanObject, null);
} else {
throw new AxisFault("can not find read method for : " + propDesc.getName());
}
addTypeQname(elemntNameSpace, object, propDesc, beanName,processingDocLitBare);
object.add(value == null ? null : SimpleTypeMapper.getStringValue(value));
} else if (ptype.isArray()) {
if (SimpleTypeMapper.isSimpleType(ptype.getComponentType())) {
Method readMethod = propDesc.getReadMethod();
Object value;
if(readMethod!=null){
if (property.getGetter() !=null && property.getGetter().isPublic()){
readMethod.setAccessible(true);
}
value = readMethod.invoke(beanObject,null);
} else {
throw new AxisFault("can not find read method for : " + propDesc.getName());
}
if (value != null) {
if("byte".equals(ptype.getComponentType().getName())) {
addTypeQname(elemntNameSpace, object, propDesc, beanName,processingDocLitBare);
object.add(Base64.encode((byte[]) value));
} else {
int i1 = Array.getLength(value);
for (int j = 0; j < i1; j++) {
Object o = Array.get(value, j);
addTypeQname(elemntNameSpace, object, propDesc, beanName,processingDocLitBare);
object.add(o == null ? null : SimpleTypeMapper.getStringValue(o));
}
}
} else {
addTypeQname(elemntNameSpace, object, propDesc, beanName,processingDocLitBare);
object.add(value);
}
} else {
Method readMethod = propDesc.getReadMethod();
Object value [] = null;
if(readMethod!=null){
if (property.getGetter() !=null && property.getGetter().isPublic()){
readMethod.setAccessible(true);
}
value = (Object[])propDesc.getReadMethod().invoke(beanObject,
null);
}
if (value != null) {
for (int j = 0; j < value.length; j++) {
Object o = value[j];
addTypeQname(elemntNameSpace, object, propDesc, beanName,processingDocLitBare);
object.add(o);
}
} else {
addTypeQname(elemntNameSpace, object, propDesc, beanName,processingDocLitBare);
object.add(value);
}
}
} else if (SimpleTypeMapper.isCollection(ptype)) {
Method readMethod = propDesc.getReadMethod();
if (property.getGetter() !=null && property.getGetter().isPublic()){
readMethod.setAccessible(true);
}
Object value = readMethod.invoke(beanObject,
null);
Collection objList = (Collection)value;
if (objList != null && objList.size() > 0) {
//this was given error , when the array.size = 0
// and if the array contain simple type , then the ADBPullParser asked
// PullParser from That simpel type
for (Iterator j = objList.iterator(); j.hasNext();) {
Object o = j.next();
if (SimpleTypeMapper.isSimpleType(o)) {
addTypeQname(elemntNameSpace, object, propDesc, beanName,processingDocLitBare);
object.add(o);
} else {
addTypeQname(elemntNameSpace, object, propDesc, beanName ,processingDocLitBare);
object.add(o);
}
}
} else {
addTypeQname(elemntNameSpace, object, propDesc, beanName,processingDocLitBare);
object.add(value);
}
} else {
addTypeQname(elemntNameSpace, object, propDesc, beanName,processingDocLitBare);
Method readMethod = propDesc.getReadMethod();
if (property.getGetter() !=null && property.getGetter().isPublic()){
readMethod.setAccessible(true);
}
Object value = readMethod.invoke(beanObject,
null);
if ("java.lang.Object".equals(ptype.getName())){
if ((value instanceof Integer ) ||
(value instanceof Short) ||
(value instanceof Long) ||
(value instanceof Float)) {
object.add(value.toString());
continue;
}
}
object.add(value);
}
}
// Added objectAttributes as a fix for issues AXIS2-2055 and AXIS2-1899 to
// support polymorphism in POJO approach.
// For some reason, using QName(Constants.XSI_NAMESPACE, "type", "xsi") does not generate
// an xsi:type attribtue properly for inner objects. So just using a simple QName("type").
ArrayList objectAttributes = new ArrayList();
objectAttributes.add(new QName("type"));
objectAttributes.add(beanObject.getClass().getName());
return new ADBXMLStreamReaderImpl(beanName, object.toArray(), objectAttributes.toArray(),
typeTable, qualified);
} catch (java.io.IOException e) {
throw new RuntimeException(e);
} catch (java.beans.IntrospectionException e) {
throw new RuntimeException(e);
} catch (java.lang.reflect.InvocationTargetException e) {
throw new RuntimeException(e);
} catch (java.lang.IllegalAccessException e) {
throw new RuntimeException(e);
}
}
private static void addTypeQname(QName elemntNameSpace,
ArrayList object,
PropertyDescriptor propDesc,
QName beanName,
boolean processingDocLitBare) {
if (elemntNameSpace != null) {
object.add(new QName(elemntNameSpace.getNamespaceURI(),
getCorrectName(propDesc.getName()) , elemntNameSpace.getPrefix()));
} else {
if(processingDocLitBare){
object.add(new QName(getCorrectName(propDesc.getName())));
} else {
object.add(new QName(beanName.getNamespaceURI(),
getCorrectName(propDesc.getName()), beanName.getPrefix()));
}
}
}
/**
* to get the pull parser for a given bean object , generate the wrpper element using class
* name
*
* @param beanObject
*/
public static XMLStreamReader getPullParser(Object beanObject) {
String className = beanObject.getClass().getName();
if (className.indexOf(".") > 0) {
className = className.substring(className.lastIndexOf('.') + 1,
className.length());
}
return getPullParser(beanObject, new QName(className), null, false, false);
}
public static Object deserialize(Class beanClass,
OMElement beanElement,
ObjectSupplier objectSupplier,
String arrayLocalName)
throws AxisFault {
Object beanObj =null;
try {
// Added this block as a fix for issues AXIS2-2055 and AXIS2-1899
// to support polymorphism in POJO approach.
// Retrieve the type name of the instance from the 'type' attribute
// and retrieve the class.
String instanceTypeName = beanElement.getAttributeValue(new QName("type"));
if ((instanceTypeName != null) && (! beanClass.isArray())) {
try {
beanClass = Loader.loadClass(beanClass.getClassLoader(), instanceTypeName);
} catch (ClassNotFoundException ce) {
throw AxisFault.makeFault(ce);
}
}
if (beanClass.isArray()) {
ArrayList valueList = new ArrayList();
Class arrayClassType = beanClass.getComponentType();
if ("byte".equals(arrayClassType.getName())) {
return Base64.decode(beanElement.getFirstElement().getText());
} else {
Iterator parts = beanElement.getChildElements();
OMElement omElement;
while (parts.hasNext()) {
Object objValue = parts.next();
if (objValue instanceof OMElement) {
omElement = (OMElement)objValue;
if (!arrayLocalName.equals(omElement.getLocalName())) {
continue;
}
Object obj = deserialize(arrayClassType,
omElement,
objectSupplier, null);
if (obj != null) {
valueList.add(obj);
}
}
}
return ConverterUtil.convertToArray(arrayClassType,
valueList);
}
} else {
if (SimpleTypeMapper.isSimpleType(beanClass)) {
return SimpleTypeMapper.getSimpleTypeObject(beanClass, beanElement);
} else if ("java.lang.Object".equals(beanClass.getName())){
return beanElement.getFirstOMChild();
}
HashMap properties = new HashMap();
BeanInfo beanInfo = Introspector.getBeanInfo(beanClass);
PropertyDescriptor [] propDescs = beanInfo.getPropertyDescriptors();
for (int i = 0; i < propDescs.length; i++) {
PropertyDescriptor proprty = propDescs[i];
properties.put(proprty.getName(), proprty);
}
Iterator elements = beanElement.getChildren();
if (beanObj == null) {
beanObj = objectSupplier.getObject(beanClass);
}
while (elements.hasNext()) {
// the beanClass could be an abstract one.
// so create an instance only if there are elements, in
// which case a concrete subclass is available to instantiate.
OMElement parts;
Object objValue = elements.next();
if (objValue instanceof OMElement) {
parts = (OMElement)objValue;
} else {
continue;
}
OMAttribute attribute = parts.getAttribute(
new QName("http://www.w3.org/2001/XMLSchema-instance", "nil", "xsi"));
// if parts/@href != null then need to find element with id and deserialize.
// before that first check whether we already have it in the hashtable
String partsLocalName = parts.getLocalName();
PropertyDescriptor prty = (PropertyDescriptor)properties.remove(partsLocalName);
if (prty != null) {
Class parameters = prty.getPropertyType();
if (prty.equals("class"))
continue;
Object partObj;
if (attribute != null) {
partObj = null;
} else {
if (SimpleTypeMapper.isSimpleType(parameters)) {
partObj = SimpleTypeMapper.getSimpleTypeObject(parameters, parts);
} else if (SimpleTypeMapper.isCollection(parameters)) {
partObj = SimpleTypeMapper.getArrayList((OMElement)
parts.getParent(), prty.getName());
} else if (SimpleTypeMapper.isDataHandler(parameters)){
partObj = SimpleTypeMapper.getDataHandler(parts);
} else if (parameters.isArray()) {
partObj = deserialize(parameters, (OMElement)parts.getParent(),
objectSupplier, prty.getName());
} else {
partObj = deserialize(parameters, parts, objectSupplier, null);
}
}
Object [] parms = new Object[] { partObj };
Method writeMethod = prty.getWriteMethod();
if (writeMethod != null) {
writeMethod.setAccessible(true);
writeMethod.invoke(beanObj, parms);
}
}
}
return beanObj;
}
} catch (IllegalAccessException e) {
throw new AxisFault("IllegalAccessException : " + e);
} catch (InvocationTargetException e) {
throw new AxisFault("InvocationTargetException : " + e);
} catch (IntrospectionException e) {
throw new AxisFault("IntrospectionException : " + e);
}
}
public static Object deserialize(Class beanClass,
OMElement beanElement,
MultirefHelper helper,
ObjectSupplier objectSupplier) throws AxisFault {
Object beanObj;
try {
HashMap properties = new HashMap();
BeanInfo beanInfo = Introspector.getBeanInfo(beanClass);
PropertyDescriptor [] propDescs = beanInfo.getPropertyDescriptors();
for (int i = 0; i < propDescs.length; i++) {
PropertyDescriptor proprty = propDescs[i];
properties.put(proprty.getName(), proprty);
}
beanObj = objectSupplier.getObject(beanClass);
Iterator elements = beanElement.getChildren();
while (elements.hasNext()) {
Object child = elements.next();
OMElement parts;
if (child instanceof OMElement) {
parts = (OMElement)child;
} else {
continue;
}
String partsLocalName = parts.getLocalName();
PropertyDescriptor prty = (PropertyDescriptor)properties.get(
partsLocalName.toLowerCase());
if (prty != null) {
Class parameters = prty.getPropertyType();
if (prty.equals("class"))
continue;
Object partObj;
OMAttribute attr = MultirefHelper.processRefAtt(parts);
if (attr != null) {
String refId = MultirefHelper.getAttvalue(attr);
partObj = helper.getObject(refId);
if (partObj == null) {
partObj = helper.processRef(parameters, refId, objectSupplier);
}
} else {
partObj = SimpleTypeMapper.getSimpleTypeObject(parameters, parts);
if (partObj == null) {
partObj = deserialize(parameters, parts, objectSupplier, null);
}
}
Object [] parms = new Object[] { partObj };
Method writeMethod = prty.getWriteMethod();
if (writeMethod != null) {
writeMethod.setAccessible(true);
writeMethod.invoke(beanObj, parms);
}
}
}
} catch (IllegalAccessException e) {
throw new AxisFault("IllegalAccessException : " + e);
} catch (InvocationTargetException e) {
throw new AxisFault("InvocationTargetException : " + e);
} catch (IntrospectionException e) {
throw new AxisFault("IntrospectionException : " + e);
}
return beanObj;
}
/**
* To get JavaObjects from XML elemnt , the element most of the time contains only one element
* in that case that element will be converted to the JavaType specified by the javaTypes array
* The algo is as follows, get the childerns of the response element , and if it conatian more
* than one element then check the retuen type of that element and conver that to corresponding
* JavaType
*
* @param response OMElement
* @param javaTypes Array of JavaTypes
* @return Array of objects
* @throws AxisFault
*/
public static Object [] deserialize(OMElement response,
Object [] javaTypes,
ObjectSupplier objectSupplier) throws AxisFault {
/*
* Take the number of parameters in the method and , only take that much of child elements
* from the OMElement , other are ignore , as an example
* if the method is , foo(String a , int b)
* and if the OMElemet
*
* Val1
* Val2
* Val3
*
* only the val1 and Val2 take into account
*/
int length = javaTypes.length;
int count = 0;
Object [] retObjs = new Object[length];
/*
* If the body first child contains , then there can not be any other element withot
* refs , so I can assume if the first child of the body first element has ref then
* the message has to handle as mutiref message.
* as an exmple if the body is like below
*
*
*
*
* then there can not be any element without refs , meaning following we are not handling
*
*
* absbsbs
*
*/
Iterator parts = response.getChildren();
//to handle multirefs
//have to check the instanceof
MultirefHelper helper = new MultirefHelper((OMElement)response.getParent());
//to support array . if the parameter type is array , then all the omelemnts with that paramtre name
// has to get and add to the list
Class classType;
String currentLocalName;
while (parts.hasNext() && count < length) {
Object objValue = parts.next();
OMElement omElement;
if (objValue instanceof OMElement) {
omElement = (OMElement)objValue;
} else {
continue;
}
currentLocalName = omElement.getLocalName();
classType = (Class)javaTypes[count];
omElement = ProcessElement(classType, omElement, helper, parts,
currentLocalName, retObjs, count, objectSupplier);
while (omElement != null) {
count ++;
omElement = ProcessElement((Class)javaTypes[count], omElement,
helper, parts, omElement.getLocalName(), retObjs, count,
objectSupplier);
}
count ++;
}
// Ensure that we have at least a zero element array
for (int i = 0; i < length; i++) {
Class clazz = (Class)javaTypes[i];
if (retObjs[i] == null && clazz.isArray()) {
retObjs[i] = Array.newInstance(clazz.getComponentType(), 0);
}
}
helper.clean();
return retObjs;
}
private static OMElement ProcessElement(Class classType, OMElement omElement,
MultirefHelper helper, Iterator parts,
String currentLocalName,
Object[] retObjs,
int count,
ObjectSupplier objectSupplier) throws AxisFault {
Object objValue;
if (classType.isArray()) {
boolean done = true;
ArrayList valueList = new ArrayList();
Class arrayClassType = classType.getComponentType();
if ("byte".equals(arrayClassType.getName())) {
retObjs[count] =
processObject(omElement, arrayClassType, helper, true, objectSupplier);
return null;
} else {
valueList.add(processObject(omElement, arrayClassType, helper, true,
objectSupplier));
}
while (parts.hasNext()) {
objValue = parts.next();
if (objValue instanceof OMElement) {
omElement = (OMElement)objValue;
} else {
continue;
}
if (!currentLocalName.equals(omElement.getLocalName())) {
done = false;
break;
}
Object o = processObject(omElement, arrayClassType,
helper, true, objectSupplier);
valueList.add(o);
}
if(valueList.get(0)==null){
retObjs[count] = null;
} else {
retObjs[count] = ConverterUtil.convertToArray(arrayClassType,
valueList);
}
if (!done) {
return omElement;
}
} else {
//handling refs
retObjs[count] = processObject(omElement, classType, helper, false, objectSupplier);
}
return null;
}
public static Object processObject(OMElement omElement,
Class classType,
MultirefHelper helper,
boolean isArrayType,
ObjectSupplier objectSupplier) throws AxisFault {
boolean hasRef = false;
OMAttribute omatribute = MultirefHelper.processRefAtt(omElement);
String ref = null;
if (omatribute != null) {
hasRef = true;
ref = MultirefHelper.getAttvalue(omatribute);
}
if (OMElement.class.isAssignableFrom(classType)) {
if (hasRef) {
OMElement elemnt = helper.getOMElement(ref);
if (elemnt == null) {
return helper.processOMElementRef(ref);
} else {
return elemnt;
}
} else
return omElement;
} else {
if (hasRef) {
if (helper.getObject(ref) != null) {
return helper.getObject(ref);
} else {
return helper.processRef(classType, ref, objectSupplier);
}
} else {
OMAttribute attribute = omElement.getAttribute(
new QName("http://www.w3.org/2001/XMLSchema-instance", "nil", "xsi"));
if (attribute != null) {
return null;
}
if (SimpleTypeMapper.isSimpleType(classType)) {
if (isArrayType && "byte".equals(classType.getName())) {
String value = omElement.getText();
return Base64.decode(value);
} else {
return SimpleTypeMapper.getSimpleTypeObject(classType, omElement);
}
} else if (SimpleTypeMapper.isCollection(classType)) {
return SimpleTypeMapper.getArrayList(omElement);
} else if (SimpleTypeMapper.isDataHandler(classType)) {
return SimpleTypeMapper.getDataHandler(omElement);
} else {
return BeanUtil.deserialize(classType, omElement, objectSupplier, null);
}
}
}
}
public static OMElement getOMElement(QName opName,
Object [] args,
QName partName,
boolean qualifed,
TypeTable typeTable) {
ArrayList objects;
objects = new ArrayList();
int argCount = 0;
for (int i = 0; i < args.length; i++) {
Object arg = args[i];
if (arg == null) {
if (partName == null) {
objects.add("item" + argCount);
} else {
objects.add(partName);
}
objects.add(arg);
continue;
}
//todo if the request parameter has name other than argi (0 1000){
nsCount = 1;
}
return "s" + nsCount++;
}
/**
* JAM convert first name of an attribute into UpperCase as an example if there is a instance
* variable called foo in a bean , then Jam give that as Foo so this method is to correct that
* error
*
* @param wrongName
* @return the right name, using english as the locale for case conversion
*/
private static String getCorrectName(String wrongName) {
if (wrongName.length() > 1) {
return wrongName.substring(0, 1).toLowerCase(Locale.ENGLISH)
+ wrongName.substring(1, wrongName.length());
} else {
return wrongName.substring(0, 1).toLowerCase(Locale.ENGLISH);
}
}
}
