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/*
Copyright (c) 2009-2013 Olivier Chafik, All Rights Reserved
This file is part of JNAerator (http://jnaerator.googlecode.com/).
JNAerator is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
JNAerator 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with JNAerator. If not, see .
*/
package com.ochafik.lang.jnaerator.runtime;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import com.ochafik.net.URLUtils;
import com.sun.jna.Platform;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
/**
* @see SoyLatte: Java 6 Port for Mac OS X
* @author ochafik
*
*/
public class LibraryExtractor {
static {
if (Platform.isWindows()) {
String path = System.getProperty("java.library.path");
String winPath = "c:\\Windows\\" + (Platform.is64Bit() ? "SysWOW64" : "System32");
if (path == null)
path = winPath;
else
path = path + ";" + winPath;
System.setProperty("java.library.path", path);
}
}
public static String getCurrentOSAndArchString() {
String os = System.getProperty("os.name"), arch = System.getProperty("os.arch");
if (os.equals("Mac OS X")) {
os = "darwin";
arch = "fat";
//arch = Platform.is64Bit() ? "64" : "32";
} else if (os.startsWith("Windows")) {
return "win" + (Platform.is64Bit() ? "64" : "32");
} else if (os.matches("SunOS|Solaris"))
os = "solaris";
return os + "-" + arch;
}
public static String getLibraryPath(String libraryName, boolean extractAllLibraries, Class cl) {
try {
String customPath = System.getProperty("library." + libraryName);
if (customPath == null)
customPath = System.getenv(libraryName.toUpperCase() + "_LIBRARY");
if (customPath != null) {
File f = new File(customPath);
if (!f.exists())
System.err.println("Library file '" + customPath + "' does not exist !");
else
return f.getAbsolutePath();
}
//ClassLoader cl = LibraryExtractor.class.getClassLoader();
String prefix = "(?i)" + (Platform.isWindows() || Platform.isWindowsCE() ? "" : "lib") + libraryName + "[^A-Za-z_].*";
String libsuffix = "(?i).*\\.(so|dll|dylib|jnilib)";
//String othersuffix = "(?i).*\\.(pdb)";
URL sourceURL = null;
List otherURLs = new ArrayList();
String arch = getCurrentOSAndArchString();
//System.out.println("libURL = " + libURL);
List list = URLUtils.listFiles(URLUtils.getResource(cl, "libraries/" + arch), null),
noArchList = URLUtils.listFiles(URLUtils.getResource(cl, "libraries/noarch"), null);
Set names = new HashSet();
for (URL url : list) {
String name = getFileName(url);
names.add(name);
}
for (URL url : noArchList) {
String name = getFileName(url);
if (names.add(name))
list.add(url);
}
/*if (list.isEmpty()) {
for (URL u : URLUtils.listFiles(URLUtils.getResource(cl, "libraries"), null)) {
String f = u.getFile();
int i = f.lastIndexOf('/');
if (i >= 0)
f = f.substring(i + 1);
if (arch.startsWith(f)) {
list = URLUtils.listFiles(u, null);
break;
}
}
}*/
for (File f : new File(".").listFiles())
if (f.isFile())
list.add(f.toURI().toURL());
for (URL url : list) {
String name = getFileName(url);
boolean pref = name.matches(prefix), suff = name.matches(libsuffix);
if (pref && suff)
sourceURL = url;
else //if (suff || fileName.matches(othersuffix))
otherURLs.add(url);
}
List files = new ArrayList();
if (extractAllLibraries) {
for (URL url : otherURLs)
files.add(extract(url));
}
if (System.getProperty("javawebstart.version") != null) {
if (Platform.isWindows()) {
//File f = new File("c:\\Windows\\" + (Platform.is64Bit() ? "SysWOW64\\" : "System32\\") + libraryName + ".dll");
File f = new File("c:\\Windows\\" + "System32\\" + libraryName + ".dll");
if (f.exists())
return f.toString();
} else if (Platform.isMac()) {
File f = new File("/System/Library/Frameworks/" + libraryName + ".framework/" + libraryName);
if (f.exists())
return f.toString();
}
}
if (sourceURL == null)
return libraryName;
else {
File file = extract(sourceURL);
files.add(file);
int lastSize;
do {
lastSize = files.size();
for (Iterator it = files.iterator(); it.hasNext();) {
File f = it.next();
if (!f.getName().matches(libsuffix))
continue;
try {
System.load(f.toString());
it.remove();
} catch (Throwable ex) {
System.err.println("Loading " + f.getName() + " failed (" + ex + ")");
}
}
} while (files.size() < lastSize);
return file.getCanonicalPath();
}
} catch (Throwable ex) {
System.err.println("ERROR: Failed to extract library " + libraryName);
ex.printStackTrace();
return libraryName;
}
}
private static File extract(URL url) throws IOException {
File localFile;
if ("file".equals(url.getProtocol()))
localFile = new File(URLDecoder.decode(url.getFile(), "UTF-8"));
else {
File f = new File(System.getProperty("user.home"));
f = new File(f, ".jnaerator");
f = new File(f, "extractedLibraries");
if (!f.exists())
f.mkdirs();
localFile = new File(f, new File(url.getFile()).getName());
URLConnection c = url.openConnection();
if (localFile.exists() && localFile.lastModified() > c.getLastModified()) {
c.getInputStream().close();
} else {
System.out.println("Extracting " + url);
InputStream in = c.getInputStream();
OutputStream out = new FileOutputStream(localFile);
int len;
byte[] b = new byte[1024];
while ((len = in.read(b)) > 0)
out.write(b, 0, len);
out.close();
in.close();
}
}
return localFile;
}
public static void loadLibrary(String libraryName, boolean extractAllLibraries, Class cl) {
System.loadLibrary(getLibraryPath(libraryName, extractAllLibraries, cl));
}
public static boolean shouldTraceCalls(String libraryName) {
return "true".equals(System.getProperty("jna.traceCalls")) || "true".equals(System.getProperty(libraryName.toLowerCase() + ".traceCalls"));
}
public static final Object getTracingLibrary(final Object original, Class libraryClass) {
try {
final String pref = "[" + libraryClass.getSimpleName() + "]";
InvocationHandler handler = new InvocationHandler() {
//@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
StringBuilder b = new StringBuilder(pref);
b.append(method.getDeclaringClass().getName() + "." + method.getName() + "(");
for (int i = 0; i < args.length; i++) {
Object arg = args[i];
if (i != 0)
b.append(", ");
b.append(toString(arg));
}
b.append(")");
System.err.print(b);
Object ret = method.invoke(original, args);
if (method.getReturnType().equals(Void.class))
return null;
System.err.println(" => " + toString(ret));
return ret;
}
String toString(Object arg) {
if (arg instanceof Object[])
return Arrays.toString((Object[])arg);
else
return String.valueOf(arg);
}
};
Class proxyClass = Proxy.getProxyClass(libraryClass.getClassLoader(), libraryClass);
return proxyClass.getConstructor(InvocationHandler.class).newInstance(handler);
} catch (Exception ex) {
throw new RuntimeException("Failed to create trace library");
}
}
public static final Object getLibrary(String name, String path, final Class libraryClass) {
Object original = com.sun.jna.Native.loadLibrary(path, libraryClass, MangledFunctionMapper.DEFAULT_OPTIONS);
return shouldTraceCalls(name) ?
LibraryExtractor.getTracingLibrary(original, libraryClass) : original;
}
private static String getFileName(URL url) {
return new File(url.getFile()).getName();
}
}
