/*
* Copyright 2002-2006,2009 The Apache Software Foundation.
*
* Licensed 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 com.opensymphony.xwork2.validator;
import com.opensymphony.xwork2.validator.annotations.*;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* <code>AnnotationValidationConfigurationBuilder</code>
*
* @author Rainer Hermanns
* @author jepjep
* @version $Id$
*/
public class AnnotationValidationConfigurationBuilder {
private static final Pattern SETTER_PATTERN = Pattern.compile("set([A-Z][A-Za-z0-9]*)$");
private static final Pattern GETTER_PATTERN = Pattern.compile("(get|is|has)([A-Z][A-Za-z0-9]*)$");
private ValidatorFactory validatorFactory;
public AnnotationValidationConfigurationBuilder(ValidatorFactory fac) {
this.validatorFactory = fac;
}
private List<ValidatorConfig> processAnnotations(Object o) {
List<ValidatorConfig> result = new ArrayList<ValidatorConfig>();
String fieldName = null;
String methodName = null;
Annotation[] annotations = null;
if (o instanceof Class) {
Class clazz = (Class) o;
annotations = clazz.getAnnotations();
}
if (o instanceof Method) {
Method method = (Method) o;
fieldName = resolvePropertyName(method);
methodName = method.getName();
annotations = method.getAnnotations();
}
if (annotations != null) {
for (Annotation a : annotations) {
// Process collection of custom validations
if (a instanceof Validations) {
processValidationAnnotation(a, fieldName, methodName, result);
}
// Process single custom validator
if (a instanceof Validation) {
Validation v = (Validation) a;
if ( v.validations() != null ) {
for ( Validations val: v.validations()) {
processValidationAnnotation(val , fieldName, methodName, result);
}
}
}
// Process single custom validator
else if (a instanceof ExpressionValidator) {
ExpressionValidator v = (ExpressionValidator) a;
ValidatorConfig temp = processExpressionValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
// Process single custom validator
else if (a instanceof CustomValidator) {
CustomValidator v = (CustomValidator) a;
ValidatorConfig temp = processCustomValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
// Process ConversionErrorFieldValidator
else if ( a instanceof ConversionErrorFieldValidator) {
ConversionErrorFieldValidator v = (ConversionErrorFieldValidator) a;
ValidatorConfig temp = processConversionErrorFieldValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process DateRangeFieldValidator
else if ( a instanceof DateRangeFieldValidator) {
DateRangeFieldValidator v = (DateRangeFieldValidator) a;
ValidatorConfig temp = processDateRangeFieldValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process EmailValidator
else if ( a instanceof EmailValidator) {
EmailValidator v = (EmailValidator) a;
ValidatorConfig temp = processEmailValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process FieldExpressionValidator
else if ( a instanceof FieldExpressionValidator) {
FieldExpressionValidator v = (FieldExpressionValidator) a;
ValidatorConfig temp = processFieldExpressionValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process IntRangeFieldValidator
else if ( a instanceof IntRangeFieldValidator) {
IntRangeFieldValidator v = (IntRangeFieldValidator) a;
ValidatorConfig temp = processIntRangeFieldValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process DoubleRangeFieldValidator
else if ( a instanceof DoubleRangeFieldValidator) {
DoubleRangeFieldValidator v = (DoubleRangeFieldValidator) a;
ValidatorConfig temp = processDoubleRangeFieldValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process RequiredFieldValidator
else if ( a instanceof RequiredFieldValidator) {
RequiredFieldValidator v = (RequiredFieldValidator) a;
ValidatorConfig temp = processRequiredFieldValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process RequiredStringValidator
else if ( a instanceof RequiredStringValidator) {
RequiredStringValidator v = (RequiredStringValidator) a;
ValidatorConfig temp = processRequiredStringValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process StringLengthFieldValidator
else if ( a instanceof StringLengthFieldValidator) {
StringLengthFieldValidator v = (StringLengthFieldValidator) a;
ValidatorConfig temp = processStringLengthFieldValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process UrlValidator
else if ( a instanceof UrlValidator) {
UrlValidator v = (UrlValidator) a;
ValidatorConfig temp = processUrlValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process ConditionalVisitorFieldValidator
else if ( a instanceof ConditionalVisitorFieldValidator) {
ConditionalVisitorFieldValidator v = (ConditionalVisitorFieldValidator) a;
ValidatorConfig temp = processConditionalVisitorFieldValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process VisitorFieldValidator
else if ( a instanceof VisitorFieldValidator) {
VisitorFieldValidator v = (VisitorFieldValidator) a;
ValidatorConfig temp = processVisitorFieldValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
// Process RegexFieldValidator
else if ( a instanceof RegexFieldValidator) {
RegexFieldValidator v = (RegexFieldValidator) a;
ValidatorConfig temp = processRegexFieldValidatorAnnotation(v, fieldName, methodName);
if ( temp != null) {
result.add(temp);
}
}
}
}
return result;
}
private void processValidationAnnotation(Annotation a, String fieldName, String methodName, List<ValidatorConfig> result) {
Validations validations = (Validations) a;
CustomValidator[] cv = validations.customValidators();
if ( cv != null ) {
for (CustomValidator v : cv) {
ValidatorConfig temp = processCustomValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
ExpressionValidator[] ev = validations.expressions();
if ( ev != null ) {
for (ExpressionValidator v : ev) {
ValidatorConfig temp = processExpressionValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
ConversionErrorFieldValidator[] cef = validations.conversionErrorFields();
if ( cef != null ) {
for (ConversionErrorFieldValidator v : cef) {
ValidatorConfig temp = processConversionErrorFieldValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
DateRangeFieldValidator[] drfv = validations.dateRangeFields();
if ( drfv != null ) {
for (DateRangeFieldValidator v : drfv) {
ValidatorConfig temp = processDateRangeFieldValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
EmailValidator[] emv = validations.emails();
if ( emv != null ) {
for (EmailValidator v : emv) {
ValidatorConfig temp = processEmailValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
FieldExpressionValidator[] fev = validations.fieldExpressions();
if ( fev != null ) {
for (FieldExpressionValidator v : fev) {
ValidatorConfig temp = processFieldExpressionValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
IntRangeFieldValidator[] irfv = validations.intRangeFields();
if ( irfv != null ) {
for (IntRangeFieldValidator v : irfv) {
ValidatorConfig temp = processIntRangeFieldValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
RegexFieldValidator[] rfv = validations.regexFields();
if ( rfv != null ) {
for (RegexFieldValidator v : rfv) {
ValidatorConfig temp = processRegexFieldValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
RequiredFieldValidator[] rv = validations.requiredFields();
if ( rv != null ) {
for (RequiredFieldValidator v : rv) {
ValidatorConfig temp = processRequiredFieldValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
RequiredStringValidator[] rsv = validations.requiredStrings();
if ( rsv != null ) {
for (RequiredStringValidator v : rsv) {
ValidatorConfig temp = processRequiredStringValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
StringLengthFieldValidator[] slfv = validations.stringLengthFields();
if ( slfv != null ) {
for (StringLengthFieldValidator v : slfv) {
ValidatorConfig temp = processStringLengthFieldValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
UrlValidator[] uv = validations.urls();
if ( uv != null ) {
for (UrlValidator v : uv) {
ValidatorConfig temp = processUrlValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
ConditionalVisitorFieldValidator[] cvfv = validations.conditionalVisitorFields();
if ( cvfv != null ) {
for (ConditionalVisitorFieldValidator v : cvfv) {
ValidatorConfig temp = processConditionalVisitorFieldValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
VisitorFieldValidator[] vfv = validations.visitorFields();
if ( vfv != null ) {
for (VisitorFieldValidator v : vfv) {
ValidatorConfig temp = processVisitorFieldValidatorAnnotation(v, fieldName, methodName);
if (temp != null) {
result.add(temp);
}
}
}
}
private ValidatorConfig processExpressionValidatorAnnotation(ExpressionValidator v, String fieldName, String methodName) {
String validatorType = "expression";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
}
params.put("expression", v.expression());
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processCustomValidatorAnnotation(CustomValidator v, String fieldName, String methodName) {
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
String validatorType = v.type();
validatorFactory.lookupRegisteredValidatorType(validatorType);
Annotation[] recursedAnnotations = v.parameters();
if ( recursedAnnotations != null ) {
for (Annotation a2 : recursedAnnotations) {
if (a2 instanceof ValidationParameter) {
ValidationParameter parameter = (ValidationParameter) a2;
String parameterName = parameter.name();
String parameterValue = parameter.value();
params.put(parameterName, parameterValue);
}
}
}
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processRegexFieldValidatorAnnotation(RegexFieldValidator v, String fieldName, String methodName) {
String validatorType = "regex";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
params.put("expression", v.expression());
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processConditionalVisitorFieldValidatorAnnotation(ConditionalVisitorFieldValidator v, String fieldName, String methodName) {
String validatorType = "conditionalvisitor";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
params.put("expression", v.expression());
params.put("context", v.context());
params.put("appendPrefix", String.valueOf(v.appendPrefix()));
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processVisitorFieldValidatorAnnotation(VisitorFieldValidator v, String fieldName, String methodName) {
String validatorType = "visitor";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
params.put("context", v.context());
params.put("appendPrefix", String.valueOf(v.appendPrefix()));
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processUrlValidatorAnnotation(UrlValidator v, String fieldName, String methodName) {
String validatorType = "url";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processStringLengthFieldValidatorAnnotation(StringLengthFieldValidator v, String fieldName, String methodName) {
String validatorType = "stringlength";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
if ( v.maxLength() != null && v.maxLength().length() > 0) {
params.put("maxLength", v.maxLength());
}
if ( v.minLength() != null && v.minLength().length() > 0) {
params.put("minLength", v.minLength());
}
params.put("trim", String.valueOf(v.trim()));
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private Date parseDateString(String value) {
SimpleDateFormat d1 = (SimpleDateFormat) DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.LONG, Locale.getDefault());
SimpleDateFormat d2 = (SimpleDateFormat)DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.MEDIUM, Locale.getDefault());
SimpleDateFormat d3 = (SimpleDateFormat)DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, Locale.getDefault());
SimpleDateFormat[] dfs = {d1, d2, d3};
DateFormat df = null;
for (SimpleDateFormat df1 : dfs) {
try {
Date check = df1.parse(value);
df = df1;
if (check != null) {
return check;
}
}
catch (ParseException ignore) {
}
}
return null;
}
private ValidatorConfig processRequiredStringValidatorAnnotation(RequiredStringValidator v, String fieldName, String methodName) {
String validatorType = "requiredstring";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
params.put("trim", String.valueOf(v.trim()));
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processRequiredFieldValidatorAnnotation(RequiredFieldValidator v, String fieldName, String methodName) {
String validatorType = "required";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processIntRangeFieldValidatorAnnotation(IntRangeFieldValidator v, String fieldName, String methodName) {
String validatorType = "int";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
if ( v.min() != null && v.min().length() > 0) {
params.put("min", v.min());
}
if ( v.max() != null && v.max().length() > 0) {
params.put("max", v.max());
}
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processDoubleRangeFieldValidatorAnnotation(DoubleRangeFieldValidator v, String fieldName, String methodName) {
String validatorType = "double";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
if ( v.minInclusive() != null && v.minInclusive().length() > 0) {
params.put("minInclusive", v.minInclusive());
}
if ( v.maxInclusive() != null && v.maxInclusive().length() > 0) {
params.put("maxInclusive", v.maxInclusive());
}
if ( v.minExclusive() != null && v.minExclusive().length() > 0) {
params.put("minExclusive", v.minExclusive());
}
if ( v.maxExclusive() != null && v.maxExclusive().length() > 0) {
params.put("maxExclusive", v.maxExclusive());
}
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processFieldExpressionValidatorAnnotation(FieldExpressionValidator v, String fieldName, String methodName) {
String validatorType = "fieldexpression";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
params.put("expression", v.expression());
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processEmailValidatorAnnotation(EmailValidator v, String fieldName, String methodName) {
String validatorType = "email";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processDateRangeFieldValidatorAnnotation(DateRangeFieldValidator v, String fieldName, String methodName) {
String validatorType = "date";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
if ( v.min() != null && v.min().length() > 0) {
final Date minDate = parseDateString(v.min());
params.put("min", String.valueOf(minDate == null ? v.min() : minDate));
}
if ( v.max() != null && v.max().length() > 0) {
final Date maxDate = parseDateString(v.max());
params.put("max", String.valueOf(maxDate == null ? v.max() : maxDate));
}
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
private ValidatorConfig processConversionErrorFieldValidatorAnnotation(ConversionErrorFieldValidator v, String fieldName, String methodName) {
String validatorType = "conversion";
Map<String, String> params = new HashMap<String, String>();
if (fieldName != null) {
params.put("fieldName", fieldName);
} else if (v.fieldName() != null && v.fieldName().length() > 0 ) {
params.put("fieldName", v.fieldName());
}
validatorFactory.lookupRegisteredValidatorType(validatorType);
return new ValidatorConfig.Builder(validatorType)
.addParams(params)
.addParam("methodName", methodName)
.shortCircuit(v.shortCircuit())
.defaultMessage(v.message())
.messageKey(v.key())
.build();
}
public List<ValidatorConfig> buildAnnotationClassValidatorConfigs(Class aClass) {
List<ValidatorConfig> result = new ArrayList<ValidatorConfig>();
List<ValidatorConfig> temp = processAnnotations(aClass);
if (temp != null) {
result.addAll(temp);
}
Method[] methods = aClass.getDeclaredMethods();
if ( methods != null ) {
for (Method method : methods) {
temp = processAnnotations(method);
if (temp != null) {
result.addAll(temp);
}
}
}
return result;
}
/**
* Returns the property name for a method.
* This method is independant from property fields.
*
* @param method The method to get the property name for.
* @return the property name for given method; null if non could be resolved.
*/
public String resolvePropertyName(Method method) {
Matcher matcher = SETTER_PATTERN.matcher(method.getName());
if (matcher.matches() && method.getParameterTypes().length == 1) {
String raw = matcher.group(1);
return raw.substring(0, 1).toLowerCase() + raw.substring(1);
}
matcher = GETTER_PATTERN.matcher(method.getName());
if (matcher.matches() && method.getParameterTypes().length == 0) {
String raw = matcher.group(2);
return raw.substring(0, 1).toLowerCase() + raw.substring(1);
}
return null;
}
}