X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=support%2Fgeneral%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Freflection%2FReflectionUtils.java;h=0da2d1f2ff31fb93e3518a031686b30aff34b239;hb=313c76d2f2ef7da225beaabbb7be8715d018ab4d;hp=a1fa5522b8f68bd0da7a8271a9168ef73421bd7c;hpb=7d65731ca9f92b8b448433389f9ca62aa28081df;p=utils

diff --git a/support/general/src/main/java/org/wamblee/reflection/ReflectionUtils.java b/support/general/src/main/java/org/wamblee/reflection/ReflectionUtils.java
index a1fa5522..0da2d1f2 100644
--- a/support/general/src/main/java/org/wamblee/reflection/ReflectionUtils.java
+++ b/support/general/src/main/java/org/wamblee/reflection/ReflectionUtils.java
@@ -1,5 +1,21 @@
+/*
+ * Copyright 2005-2010 the original author or authors.
+ * 
+ * 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 org.wamblee.reflection;
 
+import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -7,73 +23,148 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+/**
+ * Some utilities for reflection. 
+ * 
+ * @author Erik Brakkee
+ */
 public class ReflectionUtils {
+    
+    public static final List<Class> PRIMITIVE_WRAPPERS =
+        createPrimitiveWrappers();
+    
+    private static final List<Class> createPrimitiveWrappers() { 
+        Class[] vals =   {
+            Boolean.class, Byte.class, Character.class, Short.class, Integer.class, Long.class,
+            Float.class, Double.class };
+        return Arrays.asList(vals);
+    }
+    
+  
+    
+    
+    /**
+     * Wraps a type by the corresponding wrapper type if it is a primitive type.
+     * 
+     * @param aClass
+     *            Type to wrap.
+     * @return Wrapped type for primitives or the provided argument value.
+     */
+    public static Class wrapIfNeeded(Class aClass) {
+        if (aClass == boolean.class) {
+            return Boolean.class;
+        }
 
-	/**
-	 * Wraps a type by the corresponding wrapper type if it is a primitive
-	 * type.
-	 * @param aClass Type to wrap. 
-	 * @return Wrapped type for primitives or the provided argument value. 
-	 */
-	public static Class wrapIfNeeded(Class aClass) {
-
-		if (aClass == boolean.class) {
-			return Boolean.class;
-		}
-		if (aClass == byte.class) {
-			return Byte.class;
-		}
-		if (aClass == char.class) {
-			return Character.class;
-		}
-		if (aClass == short.class) {
-			return Short.class;
-		}
-		if (aClass == int.class) {
-			return Integer.class;
-		}
-		if (aClass == long.class) {
-			return Long.class;
-		}
-		if (aClass == float.class) {
-			return Float.class;
-		}
-		if (aClass == double.class) {
-			return Double.class;
-		}
-		if (aClass == void.class) {
-			return Void.class;
-		}
-		return aClass;
-	}
-	
-	
-	public static List<Method> getAllMethods(Class aClass) {
-		
-		Map<String,Method> found = new HashMap<String, Method>();
-		getAllMethods(aClass, found);
-		return new ArrayList<Method>(found.values());
-	}
-
-	private static void getAllMethods(Class aClass, Map<String,Method> aFound) { 
-		List<Method> declared = Arrays.asList(aClass.getDeclaredMethods());
-		for (Method method: declared) { 
-			Method superMethod = aFound.get(method.getName());
-			if ( superMethod == null ) { 
-				// no superclass method
-				aFound.put(method.getName(), method);
-			}
-			else { 
-				// super class method. Check for override.
-				if ( !Arrays.equals(superMethod.getParameterTypes(), method.getParameterTypes())) { 
-					// parameters differ so this is a new method.
-					aFound.put(method.getName(), method);
-				}
-			}
-		}
-		Class superClass = aClass.getSuperclass();
-		if (superClass != null) {
-			getAllMethods(superClass, aFound);
-		}
-	}
+        if (aClass == byte.class) {
+            return Byte.class;
+        }
+
+        if (aClass == char.class) {
+            return Character.class;
+        }
+
+        if (aClass == short.class) {
+            return Short.class;
+        }
+
+        if (aClass == int.class) {
+            return Integer.class;
+        }
+
+        if (aClass == long.class) {
+            return Long.class;
+        }
+
+        if (aClass == float.class) {
+            return Float.class;
+        }
+
+        if (aClass == double.class) {
+            return Double.class;
+        }
+
+        if (aClass == void.class) {
+            return Void.class;
+        }
+
+        return aClass;
+    }
+
+    public static List<Method> getAllMethods(Class aClass,
+        Class... aExcludedClasses) {
+        if (aClass.isInterface()) {
+            throw new IllegalArgumentException(aClass.getName() +
+                " is not an interface.");
+        }
+        Map<String, Method> found = new HashMap<String, Method>();
+        getAllMethods(aClass, found, Arrays.asList(aExcludedClasses));
+
+        return new ArrayList<Method>(found.values());
+    }
+
+    private static void getAllMethods(Class aClass, Map<String, Method> aFound,
+        List<Class> aExcludedClasses) {
+        List<Method> declared = Arrays.asList(aClass.getDeclaredMethods());
+
+        for (Method method : declared) {
+            Method superMethod = aFound.get(method.getName());
+
+            if (superMethod == null) {
+                // no subclass method
+                aFound.put(method.getName(), method);
+            } else {
+                // subclass method. Check for override.
+                if (!Arrays.equals(superMethod.getParameterTypes(), method
+                    .getParameterTypes())) {
+                    // parameters differ so this is a new method.
+                    aFound.put(method.getName(), method);
+                }
+            }
+        }
+
+        Class superClass = aClass.getSuperclass();
+
+        if (superClass != null && !aExcludedClasses.contains(superClass)) {
+            getAllMethods(superClass, aFound, aExcludedClasses);
+        }
+    }
+
+    public static List<Field> getAllFields(Class aClass,
+        Class... aExcludedClasses) {
+        if (aClass.isInterface()) {
+            throw new IllegalArgumentException(aClass.getName() +
+                " is an interface.");
+        }
+        List<Field> found = new ArrayList<Field>();
+        getAllFields(aClass, found, Arrays.asList(aExcludedClasses));
+
+        return found;
+    }
+
+    private static void getAllFields(Class aClass, List<Field> aFound,
+        List<Class> aExcludedClasses) {
+        List<Field> declared = Arrays.asList(aClass.getDeclaredFields());
+
+        for (Field field : declared) {
+            aFound.add(field);
+        }
+
+        Class superClass = aClass.getSuperclass();
+
+        if (superClass != null && !aExcludedClasses.contains(superClass)) {
+            getAllFields(superClass, aFound, aExcludedClasses);
+        }
+    }
+    
+    /**
+     * Checks if a class is a primitive type or wrapper type.
+     * @param aClass
+     * @return
+     */
+    public static boolean isPrimitive(Class aClass) { 
+        if ( aClass.isPrimitive()) { 
+            return true; 
+        }
+        return PRIMITIVE_WRAPPERS.contains(aClass);
+    }
 }