| /* |
| * Copyright (c) 1997, 2008, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| |
| /* |
| * The Original Code is HAT. The Initial Developer of the |
| * Original Code is Bill Foote, with contributions from others |
| * at JavaSoft/Sun. |
| */ |
| |
| package com.sun.tools.hat.internal.server; |
| |
| import com.sun.tools.hat.internal.model.JavaClass; |
| import com.sun.tools.hat.internal.model.Snapshot; |
| |
| import java.util.LinkedList; |
| import java.io.InputStream; |
| import java.io.Reader; |
| import java.io.InputStreamReader; |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| |
| /** |
| * This class is a helper that determines if a class is a "platform" |
| * class or not. It's a platform class if its name starts with one of |
| * the prefixes to be found in /com/sun/tools/hat/resources/platform_names.txt. |
| * |
| * @author Bill Foote |
| */ |
| |
| public class PlatformClasses { |
| |
| static String[] names = null; |
| |
| |
| public static synchronized String[] getNames() { |
| if (names == null) { |
| LinkedList<String> list = new LinkedList<String>(); |
| InputStream str |
| = PlatformClasses.class |
| .getResourceAsStream("/com/sun/tools/hat/resources/platform_names.txt"); |
| if (str != null) { |
| try { |
| BufferedReader rdr |
| = new BufferedReader(new InputStreamReader(str)); |
| for (;;) { |
| String s = rdr.readLine(); |
| if (s == null) { |
| break; |
| } else if (s.length() > 0) { |
| list.add(s); |
| } |
| } |
| rdr.close(); |
| str.close(); |
| } catch (IOException ex) { |
| ex.printStackTrace(); |
| // Shouldn't happen, and if it does, continuing |
| // is the right thing to do anyway. |
| } |
| } |
| names = list.toArray(new String[list.size()]); |
| } |
| return names; |
| } |
| |
| |
| public static boolean isPlatformClass(JavaClass clazz) { |
| // all classes loaded by bootstrap loader are considered |
| // platform classes. In addition, the older name based filtering |
| // is also done for compatibility. |
| if (clazz.isBootstrap()) { |
| return true; |
| } |
| |
| String name = clazz.getName(); |
| // skip even the array classes of the skipped classes. |
| if (name.startsWith("[")) { |
| int index = name.lastIndexOf('['); |
| if (index != -1) { |
| if (name.charAt(index + 1) != 'L') { |
| // some primitive array. |
| return true; |
| } |
| // skip upto 'L' after the last '['. |
| name = name.substring(index + 2); |
| } |
| } |
| String[] nms = getNames(); |
| for (int i = 0; i < nms.length; i++) { |
| if (name.startsWith(nms[i])) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |