/*

 * Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved.

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

 *

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

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

 * published by the Free Software Foundation.

 *

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

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

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

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

 * accompanied this code).

 *

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

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

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

 *

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

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

 * questions.

 *

 */

import sun.jvm.hotspot.tools.*;

import sun.jvm.hotspot.runtime.*;

import java.io.*;

import java.util.*;

import java.util.jar.*;

/**

This is a sanity checking tool for Serviceability Agent. To use this class,

refer to sasanity.sh script in the current directory.

*/

public class SASanityChecker extends Tool {

  private static final String saJarName;

  private static final Map c2types;

  static {

     saJarName = System.getProperty("SASanityChecker.SAJarName", "sa-jdi.jar");

     c2types = new HashMap();

     Object value = new Object();

     c2types.put("sun.jvm.hotspot.code.ExceptionBlob", value);

     c2types.put("sun.jvm.hotspot.code.DeoptimizationBlob", value);

     c2types.put("sun.jvm.hotspot.code.UncommonTrapBlob", value);

  }

  public void run() {

     String classPath = System.getProperty("java.class.path");

     StringTokenizer st = new StringTokenizer(classPath, File.pathSeparator);

     String saJarPath = null;

     while (st.hasMoreTokens()) {

        saJarPath = st.nextToken();

        if (saJarPath.endsWith(saJarName)) {

           break;

        }

     }

     if (saJarPath == null) {

        throw new RuntimeException(saJarName + " is not the CLASSPATH");

     }

     String cpuDot = "." + VM.getVM().getCPU() + ".";

     String platformDot = "." + VM.getVM().getOS() + "_" + VM.getVM().getCPU() + ".";

     boolean isClient = VM.getVM().isClientCompiler();

     try {

        FileInputStream fis = new FileInputStream(saJarPath);

        JarInputStream jis = new JarInputStream(fis);

        JarEntry je = null;

        while ( (je = jis.getNextJarEntry()) != null) {

           String entryName = je.getName();

           int dotClassIndex = entryName.indexOf(".class");

           if (dotClassIndex == -1) {

              // skip non-.class stuff

              continue;

           }

           entryName = entryName.substring(0, dotClassIndex).replace('/', '.');

           // skip debugger, asm classes, type classes and jdi binding classes

           if (entryName.startsWith("sun.jvm.hotspot.debugger.") ||

               entryName.startsWith("sun.jvm.hotspot.asm.") ||

               entryName.startsWith("sun.jvm.hotspot.type.") ||

               entryName.startsWith("sun.jvm.hotspot.jdi.") ) {

              continue;

           }

           String runtimePkgPrefix = "sun.jvm.hotspot.runtime.";

           int runtimeIndex = entryName.indexOf(runtimePkgPrefix);

           if (runtimeIndex != -1) {

              // look for further dot. if there, it has to be sub-package.

              // in runtime sub-packages include only current platform classes.

              if (entryName.substring(runtimePkgPrefix.length() + 1, entryName.length()).indexOf('.') != -1) {

                 if (entryName.indexOf(cpuDot) == -1 &&

                     entryName.indexOf(platformDot) == -1) {

                    continue;

                 }

              }

           }

           if (isClient) {

              if (c2types.get(entryName) != null) {

                 continue;

              }

           } else {

              if (entryName.equals("sun.jvm.hotspot.c1.Runtime1")) {

                 continue;

              }

           }

           System.out.println("checking " + entryName + " ..");

           // force init of the class to uncover any vmStructs mismatch

           Class.forName(entryName);

        }

     } catch (Exception exp) {

        System.out.println();

        System.out.println("FAILED");

        System.out.println();

        throw new RuntimeException(exp.getMessage());

     }

     System.out.println();

     System.out.println("PASSED");

     System.out.println();

  }

  public static void main(String[] args) {

     SASanityChecker checker = new SASanityChecker();

     checker.start(args);

     checker.stop();

  }

}