/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2004 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 javax.el;
import java.lang.reflect.
Array;
import java.lang.reflect.
Constructor;
import java.lang.reflect.
InvocationTargetException;
import java.lang.reflect.
Method;
import java.lang.reflect.
Modifier;
import java.text.
MessageFormat;
import java.util.
ArrayList;
import java.util.
HashMap;
import java.util.
Iterator;
import java.util.
List;
import java.util.
Locale;
import java.util.
Map;
import java.util.
MissingResourceException;
import java.util.
ResourceBundle;
/**
*
* <p>Utility methods for this portion of the EL implementation</p>
*
* <p>Methods on this class use a Map instance stored in ThreadLocal storage
* to minimize the performance impact on operations that take place multiple
* times on a single Thread. The keys and values of the Map
* are implementation private.</p>
*
* @author edburns
* @author Kin-man Chung
* @author Dongbin Nie
*/
class
ELUtil {
/**
* <p>This class may not be constructed.</p>
*/
private
ELUtil() {
}
/* For testing Backward Compatibility option
static java.util.Properties properties = new java.util.Properties();
static {
properties.setProperty("javax.el.bc2.2", "true");
}
*/
public static
ExpressionFactory exprFactory =
ExpressionFactory.
newInstance(/*properties*/);
/**
* <p>The <code>ThreadLocal</code> variable used to record the
* {@link javax.faces.context.FacesContext} instance for each
* processing thread.</p>
*/
private static
ThreadLocal<
Map<
String,
ResourceBundle>>
instance =
new
ThreadLocal<
Map<
String,
ResourceBundle>>() {
protected
Map<
String,
ResourceBundle>
initialValue() {
return (null);
}
};
/**
* @return a Map stored in ThreadLocal storage. This may
* be used by methods of this class to minimize the performance
* impact for operations that may take place multiple times on a given
* Thread instance.
*/
private static
Map<
String,
ResourceBundle>
getCurrentInstance() {
Map<
String,
ResourceBundle>
result =
instance.
get();
if (null ==
result) {
result = new
HashMap<
String,
ResourceBundle>();
setCurrentInstance(
result);
}
return
result;
}
/**
* <p>Replace the Map with the argument context.</p>
*
* @param context the Map to be stored in ThreadLocal storage.
*/
private static void
setCurrentInstance(
Map<
String,
ResourceBundle>
context) {
instance.
set(
context);
}
/*
* <p>Convenience method, calls through to
* {@link #getExceptionMessageString(javax.el.ELContext,java.lang.String,Object []).
* </p>
*
* @param context the ELContext from which the Locale for this message
* is extracted.
*
* @param messageId the messageId String in the ResourceBundle
*
* @return a localized String for the argument messageId
*/
public static
String getExceptionMessageString(
ELContext context,
String messageId) {
return
getExceptionMessageString(
context,
messageId, null);
}
/*
* <p>Return a Localized message String suitable for use as an Exception message.
* Examine the argument <code>context</code> for a <code>Locale</code>. If
* not present, use <code>Locale.getDefault()</code>. Load the
* <code>ResourceBundle</code> "javax.el.Messages" using that locale. Get
* the message string for argument <code>messageId</code>. If not found
* return "Missing Resource in EL implementation ??? messageId ???"
* with messageId substituted with the runtime
* value of argument <code>messageId</code>. If found, and argument
* <code>params</code> is non-null, format the message using the
* params. If formatting fails, return a sensible message including
* the <code>messageId</code>. If argument <code>params</code> is
* <code>null</code>, skip formatting and return the message directly, otherwise
* return the formatted message.</p>
*
* @param context the ELContext from which the Locale for this message
* is extracted.
*
* @param messageId the messageId String in the ResourceBundle
*
* @param params parameters to the message
*
* @return a localized String for the argument messageId
*/
public static
String getExceptionMessageString(
ELContext context,
String messageId,
Object []
params) {
String result = "";
Locale locale = null;
if (null ==
context || null ==
messageId) {
return
result;
}
if (null == (
locale =
context.
getLocale())) {
locale =
Locale.
getDefault();
}
if (null !=
locale) {
Map<
String,
ResourceBundle>
threadMap =
getCurrentInstance();
ResourceBundle rb = null;
if (null == (
rb = (
ResourceBundle)
threadMap.
get(
locale.
toString()))) {
rb =
ResourceBundle.
getBundle("javax.el.PrivateMessages",
locale);
threadMap.
put(
locale.
toString(),
rb);
}
if (null !=
rb) {
try {
result =
rb.
getString(
messageId);
if (null !=
params) {
result =
MessageFormat.
format(
result,
params);
}
} catch (
IllegalArgumentException iae) {
result = "Can't get localized message: parameters to message appear to be incorrect. Message to format: " +
messageId;
} catch (
MissingResourceException mre) {
result = "Missing Resource in EL implementation: ???" +
messageId + "???";
} catch (
Exception e) {
result = "Exception resolving message in EL implementation: ???" +
messageId + "???";
}
}
}
return
result;
}
static
ExpressionFactory getExpressionFactory() {
return
exprFactory;
}
static
Constructor<?>
findConstructor(
Class<?>
klass,
Class<?>[]
paramTypes,
Object[]
params) {
String methodName = "<init>";
if (
klass == null) {
throw new
MethodNotFoundException("Method not found: "
+
klass + "." +
methodName + "(" +
paramString(
paramTypes) + ")");
}
if (
paramTypes == null) {
paramTypes =
getTypesFromValues(
params);
}
Constructor<?>[]
constructors =
klass.
getConstructors();
List<
Wrapper>
wrappers =
Wrapper.
wrap(
constructors);
Wrapper result =
findWrapper(
klass,
wrappers,
methodName,
paramTypes,
params);
if (
result == null) {
return null;
}
return
getConstructor(
klass, (
Constructor<?>)
result.
unWrap());
}
static
Object invokeConstructor(
ELContext context,
Constructor<?>
c,
Object[]
params) {
Object[]
parameters =
buildParameters(
context,
c.
getParameterTypes(),
c.
isVarArgs(),
params);;
try {
return
c.
newInstance(
parameters);
} catch (
IllegalAccessException iae) {
throw new
ELException(
iae);
} catch (
IllegalArgumentException iae) {
throw new
ELException(
iae);
} catch (
InvocationTargetException ite) {
throw new
ELException(
ite.
getCause());
} catch (
InstantiationException ie) {
throw new
ELException(
ie.
getCause());
}
}
static
Method findMethod(
Class<?>
klass,
String method,
Class<?>[]
paramTypes,
Object[]
params,
boolean
staticOnly) {
Method m =
findMethod(
klass,
method,
paramTypes,
params);
if (
staticOnly && !
Modifier.
isStatic(
m.
getModifiers())) {
throw new
MethodNotFoundException("Method " +
method + "for class "
+
klass + " not found or accessible");
}
return
m;
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
static
Object invokeMethod(
ELContext context,
Method m,
Object base,
Object[]
params) {
Object[]
parameters =
buildParameters(
context,
m.
getParameterTypes(),
m.
isVarArgs(),
params);
try {
return
m.
invoke(
base,
parameters);
} catch (
IllegalAccessException iae) {
throw new
ELException(
iae);
} catch (
IllegalArgumentException iae) {
throw new
ELException(
iae);
} catch (
InvocationTargetException ite) {
throw new
ELException(
ite.
getCause());
}
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
static
Method findMethod(
Class<?>
clazz,
String methodName,
Class<?>[]
paramTypes,
Object[]
paramValues) {
if (
clazz == null ||
methodName == null) {
throw new
MethodNotFoundException("Method not found: " +
clazz + "." +
methodName + "(" +
paramString(
paramTypes) + ")");
}
if (
paramTypes == null) {
paramTypes =
getTypesFromValues(
paramValues);
}
Method[]
methods =
clazz.
getMethods();
List<
Wrapper>
wrappers =
Wrapper.
wrap(
methods,
methodName);
Wrapper result =
findWrapper(
clazz,
wrappers,
methodName,
paramTypes,
paramValues);
if (
result == null) {
return null;
}
return
getMethod(
clazz, (
Method)
result.
unWrap());
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private static
Wrapper findWrapper(
Class<?>
clazz,
List<
Wrapper>
wrappers,
String name,
Class<?>[]
paramTypes,
Object[]
paramValues) {
List<
Wrapper>
assignableCandidates = new
ArrayList<
Wrapper>();
List<
Wrapper>
coercibleCandidates = new
ArrayList<
Wrapper>();
List<
Wrapper>
varArgsCandidates = new
ArrayList<
Wrapper>();
int
paramCount;
if (
paramTypes == null) {
paramCount = 0;
} else {
paramCount =
paramTypes.length;
}
for (
Wrapper w :
wrappers) {
Class<?>[]
mParamTypes =
w.
getParameterTypes();
int
mParamCount;
if (
mParamTypes == null) {
mParamCount = 0;
} else {
mParamCount =
mParamTypes.length;
}
// Check the number of parameters
if (!(
paramCount ==
mParamCount ||
(
w.
isVarArgs() &&
paramCount >=
mParamCount - 1))) {
// Method has wrong number of parameters
continue;
}
// Check the parameters match
boolean
assignable = false;
boolean
coercible = false;
boolean
varArgs = false;
boolean
noMatch = false;
for (int
i = 0;
i <
mParamCount;
i++) {
if (
i == (
mParamCount - 1) &&
w.
isVarArgs()) {
varArgs = true;
// exact var array type match
if (
mParamCount ==
paramCount) {
if (
mParamTypes[
i] ==
paramTypes[
i]) {
continue;
}
}
// unwrap the array's component type
Class<?>
varType =
mParamTypes[
i].
getComponentType();
for (int
j =
i;
j <
paramCount;
j++) {
if (!
isAssignableFrom(
paramTypes[
j],
varType)
&& !(
paramValues != null &&
j <
paramValues.length &&
isCoercibleFrom(
paramValues[
j],
varType))) {
noMatch = true;
break;
}
}
} else if (
mParamTypes[
i].
equals(
paramTypes[
i])) {
} else if (
isAssignableFrom(
paramTypes[
i],
mParamTypes[
i])) {
assignable = true;
} else {
if (
paramValues == null ||
i >=
paramValues.length) {
noMatch = true;
break;
} else {
if (
isCoercibleFrom(
paramValues[
i],
mParamTypes[
i])) {
coercible = true;
} else {
noMatch = true;
break;
}
}
}
}
if (
noMatch) {
continue;
}
if (
varArgs) {
varArgsCandidates.
add(
w);
} else if (
coercible) {
coercibleCandidates.
add(
w);
} else if (
assignable) {
assignableCandidates.
add(
w);
} else {
// If a method is found where every parameter matches exactly,
// return it
return
w;
}
}
String errorMsg = "Unable to find unambiguous method: " +
clazz + "." +
name + "(" +
paramString(
paramTypes) + ")";
if (!
assignableCandidates.
isEmpty()) {
return
findMostSpecificWrapper(
assignableCandidates,
paramTypes, false,
errorMsg);
} else if (!
coercibleCandidates.
isEmpty()) {
return
findMostSpecificWrapper(
coercibleCandidates,
paramTypes, true,
errorMsg);
} else if (!
varArgsCandidates.
isEmpty()) {
return
findMostSpecificWrapper(
varArgsCandidates,
paramTypes, true,
errorMsg);
} else {
throw new
MethodNotFoundException("Method not found: " +
clazz + "." +
name + "(" +
paramString(
paramTypes) + ")");
}
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private static
Wrapper findMostSpecificWrapper(
List<
Wrapper>
candidates,
Class<?>[]
matchingTypes, boolean
elSpecific,
String errorMsg) {
List<
Wrapper>
ambiguouses = new
ArrayList<
Wrapper>();
for (
Wrapper candidate :
candidates) {
boolean
lessSpecific = false;
Iterator<
Wrapper>
it =
ambiguouses.
iterator();
while(
it.
hasNext()) {
int
result =
isMoreSpecific(
candidate,
it.
next(),
matchingTypes,
elSpecific);
if (
result == 1) {
it.
remove();
} else if (
result == -1) {
lessSpecific = true;
}
}
if (!
lessSpecific) {
ambiguouses.
add(
candidate);
}
}
if (
ambiguouses.
size() > 1) {
throw new
MethodNotFoundException(
errorMsg);
}
return
ambiguouses.
get(0);
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private static int
isMoreSpecific(
Wrapper wrapper1,
Wrapper wrapper2,
Class<?>[]
matchingTypes, boolean
elSpecific) {
Class<?>[]
paramTypes1 =
wrapper1.
getParameterTypes();
Class<?>[]
paramTypes2 =
wrapper2.
getParameterTypes();
if (
wrapper1.
isVarArgs()) {
//JLS8 15.12.2.5 Choosing the Most Specific Method
int
length =
Math.
max(
Math.
max(
paramTypes1.length,
paramTypes2.length),
matchingTypes.length);
paramTypes1 =
getComparingParamTypesForVarArgsMethod(
paramTypes1,
length);
paramTypes2 =
getComparingParamTypesForVarArgsMethod(
paramTypes2,
length);
if (
length >
matchingTypes.length) {
Class<?>[]
matchingTypes2 = new
Class<?>[
length];
System.
arraycopy(
matchingTypes, 0,
matchingTypes2, 0,
matchingTypes.length);
matchingTypes =
matchingTypes2;
}
}
int
result = 0;
for (int
i = 0;
i <
paramTypes1.length;
i++) {
if (
paramTypes1[
i] !=
paramTypes2[
i]) {
int
r2 =
isMoreSpecific(
paramTypes1[
i],
paramTypes2[
i],
matchingTypes[
i],
elSpecific);
if (
r2 == 1) {
if (
result == -1) {
return 0;
}
result = 1;
} else if (
r2 == -1) {
if (
result == 1) {
return 0;
}
result = -1;
} else {
return 0;
}
}
}
if (
result == 0) {
// The nature of bridge methods is such that it actually
// doesn't matter which one we pick as long as we pick
// one. That said, pick the 'right' one (the non-bridge
// one) anyway.
result =
Boolean.
compare(
wrapper1.
isBridge(),
wrapper2.
isBridge());
}
return
result;
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private static int
isMoreSpecific(
Class<?>
type1,
Class<?>
type2,
Class<?>
matchingType, boolean
elSpecific) {
type1 =
getBoxingTypeIfPrimitive(
type1);
type2 =
getBoxingTypeIfPrimitive(
type2);
if (
type2.
isAssignableFrom(
type1)) {
return 1;
} else if (
type1.
isAssignableFrom(
type2)) {
return -1;
} else {
if (
elSpecific) {
/*
* Number will be treated as more specific
*
* ASTInteger only return Long or BigInteger, no Byte / Short / Integer.
* ASTFloatingPoint also.
*
*/
if (
matchingType != null &&
Number.class.
isAssignableFrom(
matchingType)) {
boolean
b1 =
Number.class.
isAssignableFrom(
type1) ||
type1.
isPrimitive();
boolean
b2 =
Number.class.
isAssignableFrom(
type2) ||
type2.
isPrimitive();
if (
b1 && !
b2) {
return 1;
} else if (
b2 && !
b1) {
return -1;
} else {
return 0;
}
}
return 0;
} else {
return 0;
}
}
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private static
Class<?>
getBoxingTypeIfPrimitive(
Class<?>
clazz) {
if (
clazz.
isPrimitive()) {
if (
clazz ==
Boolean.
TYPE) {
return
Boolean.class;
} else if (
clazz ==
Character.
TYPE) {
return
Character.class;
} else if (
clazz ==
Byte.
TYPE) {
return
Byte.class;
} else if (
clazz ==
Short.
TYPE) {
return
Short.class;
} else if (
clazz ==
Integer.
TYPE) {
return
Integer.class;
} else if (
clazz ==
Long.
TYPE) {
return
Long.class;
} else if (
clazz ==
Float.
TYPE) {
return
Float.class;
} else {
return
Double.class;
}
} else {
return
clazz;
}
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private static
Class<?>[]
getComparingParamTypesForVarArgsMethod(
Class<?>[]
paramTypes, int
length) {
Class<?>[]
result = new
Class<?>[
length];
System.
arraycopy(
paramTypes, 0,
result, 0,
paramTypes.length - 1);
Class<?>
type =
paramTypes[
paramTypes.length - 1].
getComponentType();
for (int
i =
paramTypes.length - 1;
i <
length;
i++) {
result[
i] =
type;
}
return
result;
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private static final
String paramString(
Class<?>[]
types) {
if (
types != null) {
StringBuilder sb = new
StringBuilder();
for (int
i = 0;
i <
types.length;
i++) {
if (
types[
i] == null) {
sb.
append("null, ");
} else {
sb.
append(
types[
i].
getName()).
append(", ");
}
}
if (
sb.
length() > 2) {
sb.
setLength(
sb.
length() - 2);
}
return
sb.
toString();
}
return null;
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
static boolean
isAssignableFrom(
Class<?>
src,
Class<?>
target) {
// src will always be an object
// Short-cut. null is always assignable to an object and in EL null
// can always be coerced to a valid value for a primitive
if (
src == null) {
return true;
}
target =
getBoxingTypeIfPrimitive(
target);
return
target.
isAssignableFrom(
src);
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private static boolean
isCoercibleFrom(
Object src,
Class<?>
target) {
// TODO: This isn't pretty but it works. Significant refactoring would
// be required to avoid the exception.
try {
getExpressionFactory().
coerceToType(
src,
target);
} catch (
Exception e) {
return false;
}
return true;
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private static
Class<?>[]
getTypesFromValues(
Object[]
values) {
if (
values == null) {
return null;
}
Class<?>
result[] = new
Class<?>[
values.length];
for (int
i = 0;
i <
values.length;
i++) {
if (
values[
i] == null) {
result[
i] = null;
} else {
result[
i] =
values[
i].
getClass();
}
}
return
result;
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*
* Get a public method form a public class or interface of a given method.
* Note that if a PropertyDescriptor is obtained for a non-public class that
* implements a public interface, the read/write methods will be for the
* class, and therefore inaccessible. To correct this, a version of the
* same method must be found in a superclass or interface.
*
*/
static
Method getMethod(
Class<?>
type,
Method m) {
if (
m == null ||
Modifier.
isPublic(
type.
getModifiers())) {
return
m;
}
Class<?>[]
inf =
type.
getInterfaces();
Method mp = null;
for (int
i = 0;
i <
inf.length;
i++) {
try {
mp =
inf[
i].
getMethod(
m.
getName(),
m.
getParameterTypes());
mp =
getMethod(
mp.
getDeclaringClass(),
mp);
if (
mp != null) {
return
mp;
}
} catch (
NoSuchMethodException e) {
// Ignore
}
}
Class<?>
sup =
type.
getSuperclass();
if (
sup != null) {
try {
mp =
sup.
getMethod(
m.
getName(),
m.
getParameterTypes());
mp =
getMethod(
mp.
getDeclaringClass(),
mp);
if (
mp != null) {
return
mp;
}
} catch (
NoSuchMethodException e) {
// Ignore
}
}
return null;
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
static
Constructor<?>
getConstructor(
Class<?>
type,
Constructor<?>
c) {
if (
c == null ||
Modifier.
isPublic(
type.
getModifiers())) {
return
c;
}
Constructor<?>
cp = null;
Class<?>
sup =
type.
getSuperclass();
if (
sup != null) {
try {
cp =
sup.
getConstructor(
c.
getParameterTypes());
cp =
getConstructor(
cp.
getDeclaringClass(),
cp);
if (
cp != null) {
return
cp;
}
} catch (
NoSuchMethodException e) {
// Ignore
}
}
return null;
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
static
Object[]
buildParameters(
ELContext context,
Class<?>[]
parameterTypes,
boolean
isVarArgs,
Object[]
params) {
Object[]
parameters = null;
if (
parameterTypes.length > 0) {
parameters = new
Object[
parameterTypes.length];
int
paramCount =
params == null ? 0 :
params.length;
if (
isVarArgs) {
int
varArgIndex =
parameterTypes.length - 1;
// First argCount-1 parameters are standard
for (int
i = 0; (
i <
varArgIndex &&
i <
paramCount);
i++) {
parameters[
i] =
context.
convertToType(
params[
i],
parameterTypes[
i]);
}
// Last parameter is the varargs
if (
parameterTypes.length ==
paramCount
&&
parameterTypes[
varArgIndex] ==
params[
varArgIndex].
getClass()) {
parameters[
varArgIndex] =
params[
varArgIndex];
} else {
Class<?>
varArgClass =
parameterTypes[
varArgIndex].
getComponentType();
final
Object varargs =
Array.
newInstance(
varArgClass,
(
paramCount -
varArgIndex));
for (int
i = (
varArgIndex);
i <
paramCount;
i++) {
Array.
set(
varargs,
i -
varArgIndex,
context.
convertToType(
params[
i],
varArgClass));
}
parameters[
varArgIndex] =
varargs;
}
} else {
for (int
i = 0;
i <
parameterTypes.length &&
i <
paramCount;
i++) {
parameters[
i] =
context.
convertToType(
params[
i],
parameterTypes[
i]);
}
}
}
return
parameters;
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private abstract static class
Wrapper {
public static
List<
Wrapper>
wrap(
Method[]
methods,
String name) {
List<
Wrapper>
result = new
ArrayList<>();
for (
Method method :
methods) {
if (
method.
getName().
equals(
name)) {
result.
add(new
MethodWrapper(
method));
}
}
return
result;
}
public static
List<
Wrapper>
wrap(
Constructor<?>[]
constructors) {
List<
Wrapper>
result = new
ArrayList<>();
for (
Constructor<?>
constructor :
constructors) {
result.
add(new
ConstructorWrapper(
constructor));
}
return
result;
}
public abstract
Object unWrap();
public abstract
Class<?>[]
getParameterTypes();
public abstract boolean
isVarArgs();
public abstract boolean
isBridge();
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private static class
MethodWrapper extends
Wrapper {
private final
Method m;
public
MethodWrapper(
Method m) {
this.
m =
m;
}
@
Override
public
Object unWrap() {
return
m;
}
@
Override
public
Class<?>[]
getParameterTypes() {
return
m.
getParameterTypes();
}
@
Override
public boolean
isVarArgs() {
return
m.
isVarArgs();
}
@
Override
public boolean
isBridge() {
return
m.
isBridge();
}
}
/*
* This method duplicates code in com.sun.el.util.ReflectionUtil. When
* making changes keep the code in sync.
*/
private static class
ConstructorWrapper extends
Wrapper {
private final
Constructor<?>
c;
public
ConstructorWrapper(
Constructor<?>
c) {
this.
c =
c;
}
@
Override
public
Object unWrap() {
return
c;
}
@
Override
public
Class<?>[]
getParameterTypes() {
return
c.
getParameterTypes();
}
@
Override
public boolean
isVarArgs() {
return
c.
isVarArgs();
}
@
Override
public boolean
isBridge() {
return false;
}
}
}