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test/tools/javah/compareTest/FindNativeFiles.java@959103a6100f (annotated)

test/tools/javah/compareTest/FindNativeFiles.java

Wed, 27 Apr 2016 01:34:52 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:34:52 +0800

changeset 0

959103a6100f

child 2525

2eb010b6cb22

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	import java.io.IOException;
aoqi@0	25	import java.io.InputStream;
aoqi@0	26	import java.util.Enumeration;
aoqi@0	27	import java.util.jar.JarEntry;
aoqi@0	28	import java.util.jar.JarFile;
aoqi@0	29
aoqi@0	30	import com.sun.tools.classfile.AccessFlags;
aoqi@0	31	import com.sun.tools.classfile.ClassFile;
aoqi@0	32	import com.sun.tools.classfile.ConstantPoolException;
aoqi@0	33	import com.sun.tools.classfile.Method;
aoqi@0	34	import java.util.Comparator;
aoqi@0	35	import java.util.Set;
aoqi@0	36	import java.util.TreeSet;
aoqi@0	37
aoqi@0	38	public class FindNativeFiles {
aoqi@0	39	public static void main(String[] args) throws IOException, ConstantPoolException {
aoqi@0	40	new FindNativeFiles().run(args);
aoqi@0	41	}
aoqi@0	42
aoqi@0	43	public void run(String[] args) throws IOException, ConstantPoolException {
aoqi@0	44	JarFile jar = new JarFile(args[0]);
aoqi@0	45	Set<JarEntry> entries = getNativeClasses(jar);
aoqi@0	46	for (JarEntry e: entries) {
aoqi@0	47	String name = e.getName();
aoqi@0	48	String className = name.substring(0, name.length() - 6).replace("/", ".");
aoqi@0	49	System.out.println(className);
aoqi@0	50	}
aoqi@0	51	}
aoqi@0	52
aoqi@0	53	Set<JarEntry> getNativeClasses(JarFile jar) throws IOException, ConstantPoolException {
aoqi@0	54	Set<JarEntry> results = new TreeSet<JarEntry>(new Comparator<JarEntry>() {
aoqi@0	55	public int compare(JarEntry o1, JarEntry o2) {
aoqi@0	56	return o1.getName().compareTo(o2.getName());
aoqi@0	57	}
aoqi@0	58	});
aoqi@0	59	Enumeration<JarEntry> e = jar.entries();
aoqi@0	60	while (e.hasMoreElements()) {
aoqi@0	61	JarEntry je = e.nextElement();
aoqi@0	62	if (isNativeClass(jar, je))
aoqi@0	63	results.add(je);
aoqi@0	64	}
aoqi@0	65	return results;
aoqi@0	66	}
aoqi@0	67
aoqi@0	68	boolean isNativeClass(JarFile jar, JarEntry entry) throws IOException, ConstantPoolException {
aoqi@0	69	String name = entry.getName();
aoqi@0	70	if (name.startsWith("META-INF") || !name.endsWith(".class"))
aoqi@0	71	return false;
aoqi@0	72	//String className = name.substring(0, name.length() - 6).replace("/", ".");
aoqi@0	73	//System.err.println("check " + className);
aoqi@0	74	InputStream in = jar.getInputStream(entry);
aoqi@0	75	ClassFile cf = ClassFile.read(in);
aoqi@0	76	in.close();
aoqi@0	77	for (int i = 0; i < cf.methods.length; i++) {
aoqi@0	78	Method m = cf.methods[i];
aoqi@0	79	if (m.access_flags.is(AccessFlags.ACC_NATIVE)) {
aoqi@0	80	// System.err.println(className);
aoqi@0	81	return true;
aoqi@0	82	}
aoqi@0	83	}
aoqi@0	84	return false;
aoqi@0	85	}
aoqi@0	86	}