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Corrected PMD violations

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This commit is contained in:
Abhinav Sarkar 2010-05-27 21:56:11 +05:30
parent ffebf29ec3
commit 555b0cc383
6 changed files with 50 additions and 42 deletions
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1
.gitignore vendored
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@ -1 +1,2 @@
target/*
.pmd

25
src/main/java/net/abhinavsarkar/spelhelper/ImplicitMethodResolver.java
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@ -30,7 +30,7 @@ import org.springframework.expression.spel.support.ReflectiveMethodResolver;
final class ImplicitMethodResolver implements MethodResolver {
private static final ConcurrentHashMap<String, MethodExecutor> cache =
private static final ConcurrentHashMap<String, MethodExecutor> CACHE =
new ConcurrentHashMap<String, MethodExecutor>();
private static final MethodExecutor NULL_ME = new MethodExecutor() {
@ -44,7 +44,7 @@ final class ImplicitMethodResolver implements MethodResolver {
MethodExecutor {
private final MethodExecutor executor;
private ImplicitMethodExecutor(final MethodExecutor executor) {
public ImplicitMethodExecutor(final MethodExecutor executor) {
this.executor = executor;
}
@ -65,8 +65,8 @@ final class ImplicitMethodResolver implements MethodResolver {
}
Class<?> type = targetObject.getClass();
String cacheKey = type.getName() + "." + name;
if (cache.containsKey(cacheKey)) {
MethodExecutor executor = cache.get(cacheKey);
if (CACHE.containsKey(cacheKey)) {
MethodExecutor executor = CACHE.get(cacheKey);
return executor == NULL_ME ? null : executor;
}
@ -75,25 +75,24 @@ final class ImplicitMethodResolver implements MethodResolver {
int modifiers = method.getModifiers();
if (Modifier.isPublic(modifiers) && Modifier.isStatic(modifiers)) {
Class<?>[] parameterTypes = method.getParameterTypes();
Class<?> firstParameterType = parameterTypes[0];
Class<?> firstParamType = parameterTypes[0];
if (parameterTypes.length > 0
&& firstParameterType.isAssignableFrom(type)) {
Class<?>[] modifiedArgumentTypes = new Class[argumentTypes.length + 1];
modifiedArgumentTypes[0] = firstParameterType;
System.arraycopy(argumentTypes, 0, modifiedArgumentTypes,
&& firstParamType.isAssignableFrom(type)) {
Class<?>[] newArgumentTypes = new Class[argumentTypes.length + 1];
newArgumentTypes[0] = firstParamType;
System.arraycopy(argumentTypes, 0, newArgumentTypes,
1, argumentTypes.length);
MethodExecutor executor = new ReflectiveMethodResolver()
.resolve(context, method.getDeclaringClass(), name,
modifiedArgumentTypes);
newArgumentTypes);
MethodExecutor wrappedExecutor = executor == null ? null
: new ImplicitMethodExecutor(executor);
cache.putIfAbsent(cacheKey, wrappedExecutor);
CACHE.putIfAbsent(cacheKey, wrappedExecutor);
return wrappedExecutor;
}
}
}
cache.putIfAbsent(cacheKey, NULL_ME);
CACHE.putIfAbsent(cacheKey, NULL_ME);
return null;
}

3
src/main/java/net/abhinavsarkar/spelhelper/ImplicitMethods.java
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@ -33,6 +33,9 @@ import java.util.Set;
*/
public final class ImplicitMethods {
private ImplicitMethods() {
}
/**
* Provides implicit method `distinct` on the {@link List} class.
*

12
src/main/java/net/abhinavsarkar/spelhelper/ImplicitPropertyAccessor.java
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@ -29,7 +29,7 @@ import org.springframework.util.Assert;
final class ImplicitPropertyAccessor extends ReadOnlyGenericPropertyAccessor {
private static final ConcurrentHashMap<String, MethodExecutor> cache =
private static final ConcurrentHashMap<String, MethodExecutor> CACHE =
new ConcurrentHashMap<String, MethodExecutor>();
public boolean canRead(final EvaluationContext context,
@ -37,19 +37,19 @@ final class ImplicitPropertyAccessor extends ReadOnlyGenericPropertyAccessor {
throws AccessException {
Assert.notNull(target, "target is null");
String cacheKey = target.getClass().getName() + "." + name;
if (cache.containsKey(cacheKey)) {
return cache.get(cacheKey) != null;
if (CACHE.containsKey(cacheKey)) {
return CACHE.get(cacheKey) != null;
}
for (MethodResolver mr : context.getMethodResolvers()) {
MethodExecutor me = mr.resolve(context, target, name, new Class[0]);
if (me != null) {
cache.putIfAbsent(cacheKey, me);
CACHE.putIfAbsent(cacheKey, me);
return true;
}
}
cache.putIfAbsent(cacheKey, null);
CACHE.putIfAbsent(cacheKey, null);
return false;
}
@ -58,7 +58,7 @@ final class ImplicitPropertyAccessor extends ReadOnlyGenericPropertyAccessor {
throws AccessException {
if (canRead(context, target, name)) {
String cacheKey = target.getClass().getName() + "." + name;
return cache.get(cacheKey).execute(context, target, new Object[0]);
return CACHE.get(cacheKey).execute(context, target, new Object[0]);
}
throw new AccessException(MessageFormat.format(
"Cannot read property: {0} of target: {1}", name, target));

35
src/main/java/net/abhinavsarkar/spelhelper/InheritenceUtil.java
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@ -22,39 +22,42 @@ import java.util.Set;
final class InheritenceUtil {
public static Set<Class<?>> getInheritance(final Class<?> in) {
private InheritenceUtil() {
}
public static Set<Class<?>> getInheritance(final Class<?> clazz) {
LinkedHashSet<Class<?>> result = new LinkedHashSet<Class<?>>();
result.add(in);
getInheritance(in, result);
result.add(clazz);
getInheritance(clazz, result);
return result;
}
/**
* Get inheritance of type.
*
* @param in
* @param clazz
* @param result
*/
private static void getInheritance(final Class<?> in, final Set<Class<?>> result) {
Class<?> superclass = getSuperclass(in);
private static void getInheritance(final Class<?> clazz, final Set<Class<?>> result) {
Class<?> superclass = getSuperclass(clazz);
if (superclass != null) {
result.add(superclass);
getInheritance(superclass, result);
}
getInterfaceInheritance(in, result);
getInterfaceInheritance(clazz, result);
}
/**
* Get interfaces that the type inherits from.
*
* @param in
* @param clazz
* @param result
*/
private static void getInterfaceInheritance(final Class<?> in,
private static void getInterfaceInheritance(final Class<?> clazz,
final Set<Class<?>> result) {
for (Class<?> c : in.getInterfaces()) {
for (Class<?> c : clazz.getInterfaces()) {
result.add(c);
getInterfaceInheritance(c, result);
}
@ -63,21 +66,21 @@ final class InheritenceUtil {
/**
* Get superclass of class.
*
* @param in
* @param clazz
* @return
*/
private static Class<?> getSuperclass(final Class<?> in) {
if (in == null) {
private static Class<?> getSuperclass(final Class<?> clazz) {
if (clazz == null) {
return null;
}
if (in.isArray() && in != Object[].class) {
Class<?> type = in.getComponentType();
if (clazz.isArray() && clazz != Object[].class) {
Class<?> type = clazz.getComponentType();
while (type.isArray()) {
type = type.getComponentType();
}
return type;
}
return in.getSuperclass();
return clazz.getSuperclass();
}
}

16
src/main/java/net/abhinavsarkar/spelhelper/SpelHelper.java
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@ -126,10 +126,10 @@ public final class SpelHelper {
static final String CONTEXT_LOOKUP_KEY = SpelHelper.class.getName();
private static final ExpressionParser PARSER = new SpelExpressionParser();
private static final ThreadLocal<EvaluationContext> currentContext =
private static final ThreadLocal<EvaluationContext> CURRENT_CONTEXT =
new ThreadLocal<EvaluationContext>();
private volatile EvaluationContext context;
private EvaluationContext context;
private final Set<Method> registeredFunctions = new HashSet<Method>();
private final Map<String,Method> registeredMethods =
new ConcurrentHashMap<String, Method>();
@ -177,7 +177,9 @@ public final class SpelHelper {
*/
public SpelHelper registerFunctionsFromClass(final Class<?> clazz) {
registeredFunctions.addAll(filterFunctions(clazz));
context = null;
synchronized (PARSER) {
context = null;
}
return this;
}
@ -214,9 +216,9 @@ public final class SpelHelper {
public <T> T evalExpression(final String expressionString,
final Object rootElement, final Class<T> desiredType) {
EvaluationContext evaluationContext = getEvaluationContext(rootElement);
currentContext.set(evaluationContext);
CURRENT_CONTEXT.set(evaluationContext);
T value = evalExpression(expressionString, evaluationContext, desiredType);
currentContext.set(null);
CURRENT_CONTEXT.set(null);
return value;
}
@ -320,7 +322,7 @@ public final class SpelHelper {
* Looks up an implicit constructor registered with this instance.
* @param lookup key to lookup which should be of form:
* `constructor.getDeclaringClass().getSimpleName()`
* `+ Arrays.toString(constructor.getParameterTypes())`
* `+ Arrays.toString(constructor.getParameterTypes())`
* @return The registered constructor if found, else null.
*/
public Constructor<?> lookupImplicitConstructor(final String lookup) {
@ -333,7 +335,7 @@ public final class SpelHelper {
* @return The current evaluation context.
*/
public static EvaluationContext getCurrentContext() {
return currentContext.get();
return CURRENT_CONTEXT.get();
}
private static List<Method> filterMethods(final Class<?> clazz) {