Groovy example source code file (ReflectionCache.java)

This example Groovy source code file (ReflectionCache.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Groovy tags/keywords

cachedclass, cachedclass, class, class, hashmap, map, object, object_array_class, reflectioncache, string, string, string_class, triplekeyhashmap, triplekeyhashmap, util

The Groovy ReflectionCache.java source code

/*
 * Copyright 2003-2007 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.codehaus.groovy.reflection;

import org.codehaus.groovy.util.TripleKeyHashMap;

import java.util.HashMap;
import java.util.Map;

public class ReflectionCache {
    private static Map primitiveTypesMap = new HashMap();

    static {
        primitiveTypesMap.put(byte.class, Byte.class);
        primitiveTypesMap.put(boolean.class, Boolean.class);
        primitiveTypesMap.put(char.class, Character.class);
        primitiveTypesMap.put(double.class, Double.class);
        primitiveTypesMap.put(float.class, Float.class);
        primitiveTypesMap.put(int.class, Integer.class);
        primitiveTypesMap.put(long.class, Long.class);
        primitiveTypesMap.put(short.class, Short.class);
    }

    public static Class autoboxType(Class type) {
        final Class res = (Class) primitiveTypesMap.get(type);
        return res == null ? type : res;
    }

    static TripleKeyHashMap mopNames = new TripleKeyHashMap();

    public static String getMOPMethodName(CachedClass declaringClass, String name, boolean useThis) {
        TripleKeyHashMap.Entry mopNameEntry = mopNames.getOrPut(declaringClass, name, Boolean.valueOf(useThis));
        if (mopNameEntry.value == null) {
            mopNameEntry.value = new StringBuffer().append(useThis ? "this$" : "super$").append(declaringClass.getSuperClassDistance()).append("$").append(name).toString();
        }
        return (String) mopNameEntry.value;
    }
    
    static final CachedClass STRING_CLASS = getCachedClass(String.class);

    public static boolean isArray(Class klazz) {
      return klazz.getName().charAt(0) == '[';
    }

    static void setAssignableFrom(Class klazz, Class aClass) {
//        SoftDoubleKeyMap.Entry val = (SoftDoubleKeyMap.Entry) assignableMap.getOrPut(klazz, aClass, null);
//        if (val.getValue() == null) {
//            val.setValue(Boolean.TRUE);
//        }
    }

    public static boolean isAssignableFrom(Class klazz, Class aClass) {
        if (klazz == aClass)
          return true;

//        SoftDoubleKeyMap.Entry val = (SoftDoubleKeyMap.Entry) assignableMap.getOrPut(klazz, aClass, null);
//        if (val.getValue() == null) {
//            val.setValue(Boolean.valueOf(klazz.isAssignableFrom(aClass)));
//        }
//        return ((Boolean)val.getValue()).booleanValue();
        return klazz.isAssignableFrom(aClass);
    }

    static boolean arrayContentsEq(Object[] a1, Object[] a2) {
        if (a1 == null) {
            return a2 == null || a2.length == 0;
        }

        if (a2 == null) {
            return a1.length == 0;
        }

        if (a1.length != a2.length) {
            return false;
        }

        for (int i = 0; i < a1.length; i++) {
            if (a1[i] != a2[i]) {
                return false;
            }
        }

        return true;
    }

    public static final CachedClass OBJECT_CLASS = getCachedClass(Object.class);

    public static final CachedClass OBJECT_ARRAY_CLASS = getCachedClass(Object[].class);

    public static CachedClass getCachedClass(Class klazz) {
        if (klazz == null)
          return null;
        
        return ClassInfo.getClassInfo(klazz).getCachedClass ();
    }

}