modules/common-java/src/main/java/org/apache/tuscany/sca/common/java/reflection/JavaIntrospectionHelper.java [349:500]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            Type[] types = var.getBounds();
            return getErasure(types[0]);
        }
        return null;
    }

    public static Class<?> getBaseType(Class<?> cls, Type genericType) {
        if (cls.isArray()) {
            return cls.getComponentType();
        } else if (Collection.class.isAssignableFrom(cls)) {
            if (genericType instanceof ParameterizedType) {
                // Collection<BaseType>
                ParameterizedType parameterizedType = (ParameterizedType)genericType;
                Type baseType = parameterizedType.getActualTypeArguments()[0];
                if (baseType instanceof GenericArrayType) {
                    // Base is array
                    return cls;
                } else {
                    return getErasure(baseType);
                }
            } else {
                return cls;
            }
        } else {
            return cls;
        }
    }

    public static Type getParameterType(Type type) {
        if (type instanceof ParameterizedType) {
            // Collection<BaseType>
            ParameterizedType parameterizedType = (ParameterizedType)type;
            Type baseType = parameterizedType.getActualTypeArguments()[0];
            return baseType;
        } else {
            return Object.class;
        }
    }

    public static Class<?> getBusinessInterface(Class<?> cls, Type callableReferenceType) {
        if (ServiceReference.class.isAssignableFrom(cls) && callableReferenceType instanceof ParameterizedType) {
            // Collection<BaseType>
            ParameterizedType parameterizedType = (ParameterizedType)callableReferenceType;
            Type baseType = parameterizedType.getActualTypeArguments()[0];
            if (baseType instanceof GenericArrayType) {
                // Base is array
                return cls;
            } else {
                return getErasure(baseType);
            }
        }
        return Object.class;
    }

    /**
     * Takes a property name and converts it to a setter method name according
     * to JavaBean conventions. For example, the property
     * <code>foo<code> is returned as <code>setFoo(var)</code>
     */
    public static String toSetter(String name) {
        return "set" + name.toUpperCase().substring(0, 1) + name.substring(1);
    }

    /**
     * Compares a two types, assuming one is a primitive, to determine if the
     * other is its object counterpart
     */
    private static boolean primitiveAssignable(Class<?> memberType, Class<?> param) {
        if (memberType == Integer.class) {
            return param == Integer.TYPE;
        } else if (memberType == Double.class) {
            return param == Double.TYPE;
        } else if (memberType == Float.class) {
            return param == Float.TYPE;
        } else if (memberType == Short.class) {
            return param == Short.TYPE;
        } else if (memberType == Character.class) {
            return param == Character.TYPE;
        } else if (memberType == Boolean.class) {
            return param == Boolean.TYPE;
        } else if (memberType == Byte.class) {
            return param == Byte.TYPE;
        } else if (param == Integer.class) {
            return memberType == Integer.TYPE;
        } else if (param == Double.class) {
            return memberType == Double.TYPE;
        } else if (param == Float.class) {
            return memberType == Float.TYPE;
        } else if (param == Short.class) {
            return memberType == Short.TYPE;
        } else if (param == Character.class) {
            return memberType == Character.TYPE;
        } else if (param == Boolean.class) {
            return memberType == Boolean.TYPE;
        } else if (param == Byte.class) {
            return memberType == Byte.TYPE;
        } else {
            return false;
        }
    }

    /**
     * Returns the generic types represented in the given type. Usage as
     * follows: <code>
     * JavaIntrospectionHelper.getGenerics(field.getGenericType());
     * <p/>
     * JavaIntrospectionHelper.getGenerics(m.getGenericParameterTypes()[0];); </code>
     * 
     * @return the generic types in order of declaration or an empty array if
     *         the type is not genericized
     */
    public static List<? extends Type> getGenerics(Type genericType) {
        List<Type> classes = new ArrayList<Type>();
        if (genericType instanceof ParameterizedType) {
            ParameterizedType ptype = (ParameterizedType)genericType;
            // get the type arguments
            Type[] targs = ptype.getActualTypeArguments();
            for (Type targ : targs) {
                classes.add(targ);
            }
        }
        return classes;
    }

    /**
     * Returns the generic type specified by the class at the given position as
     * in: <p/> <code> public class Foo<Bar,Baz>{ //.. }
     * <p/>
     * JavaIntrospectionHelper.introspectGeneric(Foo.class,1); <code>
     * <p/>
     * will return Baz.
     */
    public static Class introspectGeneric(Class<?> clazz, int pos) {
        assert clazz != null : "No class specified";
        Type type = clazz.getGenericSuperclass();
        if (type instanceof ParameterizedType) {
            Type[] args = ((ParameterizedType)type).getActualTypeArguments();
            if (args.length <= pos) {
                throw new IllegalArgumentException("Invalid index value for generic class " + clazz.getName());
            }
            return (Class)((ParameterizedType)type).getActualTypeArguments()[pos];
        } else {
            Type[] interfaces = clazz.getGenericInterfaces();
            for (Type itype : interfaces) {
                if (!(itype instanceof ParameterizedType)) {
                    continue;
                }
                ParameterizedType interfaceType = (ParameterizedType)itype;
                return (Class)interfaceType.getActualTypeArguments()[0];
            }
        }
        return null;
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



modules/interface-java/src/main/java/org/apache/tuscany/sca/interfacedef/java/impl/JavaIntrospectionHelper.java [402:553]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            Type[] types = var.getBounds();
            return getErasure(types[0]);
        }
        return null;
    }

    public static Class<?> getBaseType(Class<?> cls, Type genericType) {
        if (cls.isArray()) {
            return cls.getComponentType();
        } else if (Collection.class.isAssignableFrom(cls)) {
            if (genericType instanceof ParameterizedType) {
                // Collection<BaseType>
                ParameterizedType parameterizedType = (ParameterizedType)genericType;
                Type baseType = parameterizedType.getActualTypeArguments()[0];
                if (baseType instanceof GenericArrayType) {
                    // Base is array
                    return cls;
                } else {
                    return getErasure(baseType);
                }
            } else {
                return cls;
            }
        } else {
            return cls;
        }
    }

    public static Type getParameterType(Type type) {
        if (type instanceof ParameterizedType) {
            // Collection<BaseType>
            ParameterizedType parameterizedType = (ParameterizedType)type;
            Type baseType = parameterizedType.getActualTypeArguments()[0];
            return baseType;
        } else {
            return Object.class;
        }
    }

    public static Class<?> getBusinessInterface(Class<?> cls, Type callableReferenceType) {
        if (ServiceReference.class.isAssignableFrom(cls) && callableReferenceType instanceof ParameterizedType) {
            // Collection<BaseType>
            ParameterizedType parameterizedType = (ParameterizedType)callableReferenceType;
            Type baseType = parameterizedType.getActualTypeArguments()[0];
            if (baseType instanceof GenericArrayType) {
                // Base is array
                return cls;
            } else {
                return getErasure(baseType);
            }
        }
        return Object.class;
    }

    /**
     * Takes a property name and converts it to a setter method name according
     * to JavaBean conventions. For example, the property
     * <code>foo<code> is returned as <code>setFoo(var)</code>
     */
    public static String toSetter(String name) {
        return "set" + name.toUpperCase().substring(0, 1) + name.substring(1);
    }

    /**
     * Compares a two types, assuming one is a primitive, to determine if the
     * other is its object counterpart
     */
    private static boolean primitiveAssignable(Class<?> memberType, Class<?> param) {
        if (memberType == Integer.class) {
            return param == Integer.TYPE;
        } else if (memberType == Double.class) {
            return param == Double.TYPE;
        } else if (memberType == Float.class) {
            return param == Float.TYPE;
        } else if (memberType == Short.class) {
            return param == Short.TYPE;
        } else if (memberType == Character.class) {
            return param == Character.TYPE;
        } else if (memberType == Boolean.class) {
            return param == Boolean.TYPE;
        } else if (memberType == Byte.class) {
            return param == Byte.TYPE;
        } else if (param == Integer.class) {
            return memberType == Integer.TYPE;
        } else if (param == Double.class) {
            return memberType == Double.TYPE;
        } else if (param == Float.class) {
            return memberType == Float.TYPE;
        } else if (param == Short.class) {
            return memberType == Short.TYPE;
        } else if (param == Character.class) {
            return memberType == Character.TYPE;
        } else if (param == Boolean.class) {
            return memberType == Boolean.TYPE;
        } else if (param == Byte.class) {
            return memberType == Byte.TYPE;
        } else {
            return false;
        }
    }

    /**
     * Returns the generic types represented in the given type. Usage as
     * follows: <code>
     * JavaIntrospectionHelper.getGenerics(field.getGenericType());
     * <p/>
     * JavaIntrospectionHelper.getGenerics(m.getGenericParameterTypes()[0];); </code>
     *
     * @return the generic types in order of declaration or an empty array if
     *         the type is not genericized
     */
    public static List<? extends Type> getGenerics(Type genericType) {
        List<Type> classes = new ArrayList<Type>();
        if (genericType instanceof ParameterizedType) {
            ParameterizedType ptype = (ParameterizedType)genericType;
            // get the type arguments
            Type[] targs = ptype.getActualTypeArguments();
            for (Type targ : targs) {
                classes.add(targ);
            }
        }
        return classes;
    }

    /**
     * Returns the generic type specified by the class at the given position as
     * in: <p/> <code> public class Foo<Bar,Baz>{ //.. }
     * <p/>
     * JavaIntrospectionHelper.introspectGeneric(Foo.class,1); <code>
     * <p/>
     * will return Baz.
     */
    public static Class introspectGeneric(Class<?> clazz, int pos) {
        assert clazz != null : "No class specified";
        Type type = clazz.getGenericSuperclass();
        if (type instanceof ParameterizedType) {
            Type[] args = ((ParameterizedType)type).getActualTypeArguments();
            if (args.length <= pos) {
                throw new IllegalArgumentException("Invalid index value for generic class " + clazz.getName());
            }
            return (Class)((ParameterizedType)type).getActualTypeArguments()[pos];
        } else {
            Type[] interfaces = clazz.getGenericInterfaces();
            for (Type itype : interfaces) {
                if (!(itype instanceof ParameterizedType)) {
                    continue;
                }
                ParameterizedType interfaceType = (ParameterizedType)itype;
                return (Class)interfaceType.getActualTypeArguments()[0];
            }
        }
        return null;
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -