1 /*

     2  * Copyright (c) 2009, 2019, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    24 

    25 package shared;

    26 

    27 import java.lang.reflect.InvocationTargetException;

    28 

    29 /*******************************************************************/

    30 // Invoke different target method callers

    31 /*******************************************************************/

    32 

    33 public class Caller {

    34     private ClassLoader loader;

    35     private Class paramClass;

    36     private Class targetClass;

    37     private boolean passed = true;

    38     private Checker checker;

    39 

    40     public Caller(ClassLoader loader, Checker checker,

    41                   Class paramClass, Class targetClass) {

    42         this.loader = loader;

    43         this.paramClass = paramClass;

    44         this.targetClass = targetClass;

    45         this.checker = checker;

    46     }

    47 

    48     public boolean isPassed() {

    49         return passed;

    50     }

    51 

    52     public String call(String invoker) {

    53         try {

    54             Class clazz = loader.loadClass(invoker);

    55 

    56             String expectedBehavior = checker.check(clazz);

    57 

    58             String result = null;

    59             Throwable exc = null;

    60             try {

    61                 java.lang.reflect.Method m = clazz.getDeclaredMethod("call", paramClass);

    62                 result = (String) m.invoke(null, targetClass.newInstance());

    63             } catch (InvocationTargetException e) {

    64                 exc = e.getCause();

    65             } catch (Throwable e) {

    66                 exc = e;

    67             }

    68 

    69             if (result == null) {

    70                 if (exc != null) {

    71                     result = exc.getClass().getName();

    72                 } else {

    73                     result = "null";

    74                 }

    75             }

    76 

    77             if (!(result.equals(expectedBehavior) || "".equals(expectedBehavior)) ) {

    78                 passed = false;

    79                 result = String.format("%s/%s", result, expectedBehavior);

    80             }

    81 

    82             return Checker.abbreviateResult(result);

    83         } catch (Exception e) {

    84             throw new RuntimeException(e);

    85         }

    86     }

    87 }