Java Reflection Method Getter Invoke invokeGetterSafe(Object o, String name, boolean forceAccess)

Description

invoke Getter Safe

License

Apache License

Declaration

public static Object invokeGetterSafe(Object o, String name, boolean forceAccess) 

Method Source Code

//package com.java2s;
/*//from www. j  a  v  a2 s  . com
   Copyright 2013, 2016-2017 Nationale-Nederlanden
    
   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.
*/

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class Main {
    public static Object invokeGetterSafe(Object o, String name, boolean forceAccess) {
        try {
            return invokeGetter(o, name, forceAccess);
        } catch (Exception e) {
            return nameOf(o) + "." + name + "() " + nameOf(e) + ": " + e.getMessage();
        }
    }

    public static Object invokeGetter(Object o, String name, boolean forceAccess) throws SecurityException,
            NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException {
        Method getterMtd = o.getClass().getMethod(name, null);
        if (forceAccess) {
            getterMtd.setAccessible(true);
        }
        return getterMtd.invoke(o, null);
    }

    public static Object invokeGetter(Object o, String name) throws SecurityException, NoSuchMethodException,
            IllegalArgumentException, IllegalAccessException, InvocationTargetException {
        return invokeGetter(o, name, false);
    }

    /**
     * returns the classname of the object, without the pacakge name.
     */
    public static String nameOf(Object o) {
        if (o == null) {
            return "<null>";
        }
        String name = o.getClass().getName();
        int pos = name.lastIndexOf('.');
        if (pos < 0) {
            return name;
        } else {
            return name.substring(pos + 1);
        }
    }
}

Related

1. invokeGetter(Object obj, String methodName)
2. invokeGetter(Object obj, String methodName, int defaultValue)
3. invokeGetter(Object object, String field)
4. invokeGetter(Object target, Method getter)
5. invokeGetterMethod(final Method method, final Object object)
6. invokeSetter(Object target, Class clazz, String methodName, String getterMethod, Object param)
7. invokeStringGetterSafe(Object o, String name)