com.jogamp.common.util.IOUtil Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of gluegen-rt Show documentation
Show all versions of gluegen-rt Show documentation
JNI binding generator (runtime)
/**
* Copyright 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package com.jogamp.common.util;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.Closeable;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FilePermission;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.lang.ref.WeakReference;
import java.lang.reflect.Constructor;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLConnection;
import java.nio.ByteBuffer;
import java.util.regex.Pattern;
import jogamp.common.Debug;
import jogamp.common.os.AndroidUtils;
import jogamp.common.os.PlatformPropsImpl;
import com.jogamp.common.net.AssetURLContext;
import com.jogamp.common.net.Uri;
import com.jogamp.common.nio.Buffers;
import com.jogamp.common.os.MachineDataInfo;
import com.jogamp.common.os.Platform;
public class IOUtil {
public static final boolean DEBUG = Debug.debug("IOUtil");
/** Std. temporary directory property key java.io.tmpdir. */
private static final String java_io_tmpdir_propkey = "java.io.tmpdir";
private static final String user_home_propkey = "user.home";
private static final String XDG_CACHE_HOME_envkey = "XDG_CACHE_HOME";
/** Subdirectory within platform's temporary root directory where all JogAmp related temp files are being stored: {@code jogamp} */
public static final String tmpSubDir = "jogamp";
private IOUtil() {}
/**
* Since usage of {@link java.io.FileOutputStream} is considered security critical,
* we need to check it's availability for each use.
*
* In case a SecurityManager is installed, privileged access is required.
*
*
* @return the constructor of {@link java.io.FileOutputStream} if available and
* no SecurityManager is installed or privileged access is granted.
* Otherwise null.
*
*/
private static final Constructor getFOSCtor() {
Constructor _fosCtor;
Throwable _t;
try {
_fosCtor = ReflectionUtil.getConstructor("java.io.FileOutputStream", new Class[] { File.class }, true, IOUtil.class.getClassLoader());
_t = null;
} catch (final Throwable t) {
_fosCtor = null;
_t = t;
}
if(DEBUG) {
System.err.println("IOUtil: java.io.FileOutputStream available: "+(null != _fosCtor));
if(null!=_t) {
_t.printStackTrace();
}
}
return _fosCtor;
}
/***
*
* STREAM COPY STUFF
*
*/
/**
* Copy the specified URL resource to the specified output file. The total
* number of bytes written is returned.
*
* @param conn the open URLConnection
* @param outFile the destination
* @return
* @throws IOException
*/
public static int copyURLConn2File(final URLConnection conn, final File outFile) throws IOException {
conn.connect(); // redundant
int totalNumBytes = 0;
final InputStream in = new BufferedInputStream(conn.getInputStream());
try {
totalNumBytes = copyStream2File(in, outFile, conn.getContentLength());
} finally {
in.close();
}
return totalNumBytes;
}
/**
* Copy the specified input stream to the specified output file. The total
* number of bytes written is returned.
*
* @param in the source
* @param outFile the destination
* @param totalNumBytes informal number of expected bytes, maybe used for user feedback while processing. -1 if unknown
* @return
* @throws IOException
*/
public static int copyStream2File(final InputStream in, final File outFile, int totalNumBytes) throws IOException {
final OutputStream out = new BufferedOutputStream(new FileOutputStream(outFile));
try {
totalNumBytes = copyStream2Stream(in, out, totalNumBytes);
} finally {
out.close();
}
return totalNumBytes;
}
/**
* Copy the specified input stream to the specified output stream. The total
* number of bytes written is returned.
*
* @param in the source
* @param out the destination
* @param totalNumBytes informal number of expected bytes, maybe used for user feedback while processing. -1 if unknown
* @return
* @throws IOException
*/
public static int copyStream2Stream(final InputStream in, final OutputStream out, final int totalNumBytes) throws IOException {
return copyStream2Stream(Platform.getMachineDataInfo().pageSizeInBytes(), in, out, totalNumBytes);
}
/**
* Copy the specified input stream to the specified output stream. The total
* number of bytes written is returned.
*
* @param bufferSize the intermediate buffer size, should be {@link MachineDataInfo#pageSizeInBytes()} for best performance.
* @param in the source
* @param out the destination
* @param totalNumBytes informal number of expected bytes, maybe used for user feedback while processing. -1 if unknown
* @return
* @throws IOException
*/
public static int copyStream2Stream(final int bufferSize, final InputStream in, final OutputStream out, final int totalNumBytes) throws IOException {
final byte[] buf = new byte[bufferSize];
int numBytes = 0;
while (true) {
int count;
if ((count = in.read(buf)) == -1) {
break;
}
out.write(buf, 0, count);
numBytes += count;
}
return numBytes;
}
/**
* Copy the specified input stream to a byte array, which is being returned.
*/
public static byte[] copyStream2ByteArray(InputStream stream) throws IOException {
if( !(stream instanceof BufferedInputStream) ) {
stream = new BufferedInputStream(stream);
}
int totalRead = 0;
int avail = stream.available();
byte[] data = new byte[avail];
int numRead = 0;
do {
if (totalRead + avail > data.length) {
final byte[] newData = new byte[totalRead + avail];
System.arraycopy(data, 0, newData, 0, totalRead);
data = newData;
}
numRead = stream.read(data, totalRead, avail);
if (numRead >= 0) {
totalRead += numRead;
}
avail = stream.available();
} while (avail > 0 && numRead >= 0);
// just in case the announced avail > totalRead
if (totalRead != data.length) {
final byte[] newData = new byte[totalRead];
System.arraycopy(data, 0, newData, 0, totalRead);
data = newData;
}
return data;
}
/**
* Copy the specified input stream to a NIO ByteBuffer w/ native byte order, which is being returned.
* The implementation creates the ByteBuffer w/ {@link #copyStream2ByteArray(InputStream)}'s returned byte array.
*
* @param stream input stream, which will be wrapped into a BufferedInputStream, if not already done.
*/
public static ByteBuffer copyStream2ByteBuffer(final InputStream stream) throws IOException {
return copyStream2ByteBuffer(stream, -1);
}
/**
* Copy the specified input stream to a NIO ByteBuffer w/ native byte order, which is being returned.
* The implementation creates the ByteBuffer w/ {@link #copyStream2ByteArray(InputStream)}'s returned byte array.
*
* @param stream input stream, which will be wrapped into a BufferedInputStream, if not already done.
* @param initialCapacity initial buffer capacity in bytes, if > available bytes
*/
public static ByteBuffer copyStream2ByteBuffer(InputStream stream, int initialCapacity) throws IOException {
if( !(stream instanceof BufferedInputStream) ) {
stream = new BufferedInputStream(stream);
}
int avail = stream.available();
if( initialCapacity < avail ) {
initialCapacity = avail;
}
final MachineDataInfo machine = Platform.getMachineDataInfo();
ByteBuffer data = Buffers.newDirectByteBuffer( machine.pageAlignedSize( initialCapacity ) );
final byte[] chunk = new byte[machine.pageSizeInBytes()];
int chunk2Read = Math.min(machine.pageSizeInBytes(), avail);
int numRead = 0;
do {
if (avail > data.remaining()) {
final ByteBuffer newData = Buffers.newDirectByteBuffer(
machine.pageAlignedSize(data.position() + avail) );
newData.put(data);
data = newData;
}
numRead = stream.read(chunk, 0, chunk2Read);
if (numRead > 0) {
data.put(chunk, 0, numRead);
}
avail = stream.available();
chunk2Read = Math.min(machine.pageSizeInBytes(), avail);
} while ( numRead > 0 ); // EOS: -1 == numRead, EOF maybe reached earlier w/ 0 == numRead
data.flip();
return data;
}
/***
*
* RESOURCE / FILE NAME STUFF
*
*/
private static final Pattern patternSingleBS = Pattern.compile("\\\\{1}");
/**
*
* @param path
* @param startWithSlash
* @param endWithSlash
* @return
* @throws URISyntaxException if path is empty or has no parent directory available while resolving ../
*/
public static String slashify(final String path, final boolean startWithSlash, final boolean endWithSlash) throws URISyntaxException {
String p = patternSingleBS.matcher(path).replaceAll("/");
if (startWithSlash && !p.startsWith("/")) {
p = "/" + p;
}
if (endWithSlash && !p.endsWith("/")) {
p = p + "/";
}
return cleanPathString(p);
}
/**
* Returns the lowercase suffix of the given file name (the text
* after the last '.' in the file name). Returns null if the file
* name has no suffix. Only operates on the given file name;
* performs no I/O operations.
*
* @param file name of the file
* @return lowercase suffix of the file name
* @throws NullPointerException if file is null
*/
public static String getFileSuffix(final File file) {
return getFileSuffix(file.getName());
}
/**
* Returns the lowercase suffix of the given file name (the text
* after the last '.' in the file name). Returns null if the file
* name has no suffix. Only operates on the given file name;
* performs no I/O operations.
*
* @param filename name of the file
* @return lowercase suffix of the file name
* @throws NullPointerException if filename is null
*/
public static String getFileSuffix(final String filename) {
final int lastDot = filename.lastIndexOf('.');
if (lastDot < 0) {
return null;
}
return toLowerCase(filename.substring(lastDot + 1));
}
private static String toLowerCase(final String arg) {
if (arg == null) {
return null;
}
return arg.toLowerCase();
}
/***
* @param file
* @param allowOverwrite
* @return outputStream The resulting output stream
* @throws IOException if the file already exists and allowOverwrite is false,
* the class {@link java.io.FileOutputStream} is not accessible or
* the user does not have sufficient rights to access the local filesystem.
*/
public static FileOutputStream getFileOutputStream(final File file, final boolean allowOverwrite) throws IOException {
final Constructor fosCtor = getFOSCtor();
if(null == fosCtor) {
throw new IOException("Cannot open file (" + file + ") for writing, FileOutputStream feature not available.");
}
if (file.exists() && !allowOverwrite) {
throw new IOException("File already exists (" + file + ") and overwrite=false");
}
try {
return (FileOutputStream) fosCtor.newInstance(new Object[] { file });
} catch (final Exception e) {
throw new IOException("error opening " + file + " for write. ", e);
}
}
public static String getClassFileName(final String clazzBinName) {
// or return clazzBinName.replace('.', File.separatorChar) + ".class"; ?
return clazzBinName.replace('.', '/') + ".class";
}
/**
* @param clazzBinName com.jogamp.common.util.cache.TempJarCache
* @param cl ClassLoader to locate the JarFile
* @return jar:file:/usr/local/projects/JOGL/gluegen/build-x86_64/gluegen-rt.jar!/com/jogamp/common/util/cache/TempJarCache.class
* @throws IOException if the jar file could not been found by the ClassLoader
*/
public static URL getClassURL(final String clazzBinName, final ClassLoader cl) throws IOException {
final URL url = cl.getResource(getClassFileName(clazzBinName));
if(null == url) {
throw new IOException("Cannot not find: "+clazzBinName);
}
return url;
}
/**
* Returns the basename of the given fname w/o directory part
* @throws URISyntaxException if path is empty or has no parent directory available while resolving ../
*/
public static String getBasename(String fname) throws URISyntaxException {
fname = slashify(fname, false /* startWithSlash */, false /* endWithSlash */);
final int lios = fname.lastIndexOf('/'); // strip off dirname
if(lios>=0) {
fname = fname.substring(lios+1);
}
return fname;
}
/**
* Returns unified '/' dirname including the last '/'
* @throws URISyntaxException if path is empty or has no parent directory available while resolving ../
*/
public static String getDirname(String fname) throws URISyntaxException {
fname = slashify(fname, false /* startWithSlash */, false /* endWithSlash */);
final int lios = fname.lastIndexOf('/'); // strip off dirname
if(lios>=0) {
fname = fname.substring(0, lios+1);
}
return fname;
}
/***
*
* RESOURCE LOCATION STUFF
*
*/
/**
* Helper compound associating a class instance and resource paths
* to be {@link #resolve(int) resolved} at a later time.
*/
public static class ClassResources {
/** Class instance used to {@link #resolve(int)} the {@link #resourcePaths}. */
public final Class contextCL;
/** Resource paths, see {@link #resolve(int)}. */
public final String[] resourcePaths;
/** Returns the number of resources, i.e. resourcePaths.length. */
public final int resourceCount() { return resourcePaths.length; }
/**
* @param contextCL class instance to {@link #resolve(int)} {@link #resourcePaths}.
* @param resourcePaths array of strings denominating multiple resource paths. None shall be null.
*/
public ClassResources(final Class contextCL, final String[] resourcePaths) {
for(int i=resourcePaths.length-1; i>=0; i--) {
if( null == resourcePaths[i] ) {
throw new IllegalArgumentException("resourcePath["+i+"] is null");
}
}
this.contextCL = contextCL;
this.resourcePaths = resourcePaths;
}
/**
* Resolving one of the {@link #resourcePaths} indexed by uriIndex using {@link #contextCL} and {@link IOUtil#getResource(Class, String)}.
* @throws ArrayIndexOutOfBoundsException if uriIndex is < 0 or >= {@link #resourceCount()}.
*/
public URLConnection resolve(final int uriIndex) throws ArrayIndexOutOfBoundsException {
return getResource(contextCL, resourcePaths[uriIndex]);
}
}
/**
* Locating a resource using {@link #getResource(String, ClassLoader)}:
*
* - relative:
context's package name-path plus resourcePath via context's ClassLoader.
* This allows locations relative to JAR- and other URLs.
* The resourcePath may start with ../ to navigate to parent folder.
* - absolute:
context's ClassLoader and the resourcePath as is (filesystem)
*
*
*
* Returns the resolved and open URLConnection or null if not found.
*
*
* @see #getResource(String, ClassLoader)
* @see ClassLoader#getResource(String)
* @see ClassLoader#getSystemResource(String)
*/
public static URLConnection getResource(final Class context, final String resourcePath) {
if(null == resourcePath) {
return null;
}
final ClassLoader contextCL = (null!=context)?context.getClassLoader():IOUtil.class.getClassLoader();
URLConnection conn = null;
if(null != context) {
// scoping the path within the class's package
final String className = context.getName().replace('.', '/');
final int lastSlash = className.lastIndexOf('/');
if (lastSlash >= 0) {
final String pkgName = className.substring(0, lastSlash + 1);
conn = getResource(pkgName + resourcePath, contextCL);
if(DEBUG) {
System.err.println("IOUtil: found <"+resourcePath+"> within class package <"+pkgName+"> of given class <"+context.getName()+">: "+(null!=conn));
}
}
} else if(DEBUG) {
System.err.println("IOUtil: null context");
}
if(null == conn) {
conn = getResource(resourcePath, contextCL);
if(DEBUG) {
System.err.println("IOUtil: found <"+resourcePath+"> by classloader: "+(null!=conn));
}
}
return conn;
}
/**
* Locating a resource using the ClassLoader's facilities.
*
* Returns the resolved and connected URLConnection or null if not found.
*
*
* @see ClassLoader#getResource(String)
* @see ClassLoader#getSystemResource(String)
* @see URL#URL(String)
* @see File#File(String)
*/
public static URLConnection getResource(final String resourcePath, final ClassLoader cl) {
if(null == resourcePath) {
return null;
}
if(DEBUG) {
System.err.println("IOUtil: locating <"+resourcePath+">, has cl: "+(null!=cl));
}
if(resourcePath.startsWith(AssetURLContext.asset_protocol_prefix)) {
try {
return AssetURLContext.createURL(resourcePath, cl).openConnection();
} catch (final IOException ioe) {
if(DEBUG) {
System.err.println("IOUtil: Caught Exception:");
ioe.printStackTrace();
}
return null;
}
} else {
try {
return AssetURLContext.resolve(resourcePath, cl);
} catch (final IOException ioe) {
if(DEBUG) {
System.err.println("IOUtil: Caught Exception:");
ioe.printStackTrace();
}
}
}
return null;
}
/**
* Generates a path for the 'relativeFile' relative to the 'baseLocation'.
*
* @param baseLocation denotes a directory
* @param relativeFile denotes a relative file to the baseLocation
* @throws URISyntaxException if path is empty or has no parent directory available while resolving ../
*/
public static String getRelativeOf(final File baseLocation, final String relativeFile) throws URISyntaxException {
if(null == relativeFile) {
return null;
}
if (baseLocation != null) {
final File file = new File(baseLocation, relativeFile);
// Handle things on Windows
return slashify(file.getPath(), false /* startWithSlash */, false /* endWithSlash */);
}
return null;
}
/**
* @param path assuming a slashified path beginning with "/" as it's root directory, either denotes a file or directory.
* @return parent of path
* @throws URISyntaxException if path is empty or has no parent directory available
*/
public static String getParentOf(final String path) throws URISyntaxException {
final int pl = null!=path ? path.length() : 0;
if(pl == 0) {
throw new IllegalArgumentException("path is empty <"+path+">");
}
final int e = path.lastIndexOf("/");
if( e < 0 ) {
throw new URISyntaxException(path, "path contains no '/'");
}
if( e == 0 ) {
// path is root directory
throw new URISyntaxException(path, "path has no parents");
}
if( e < pl - 1 ) {
// path is file, return it's parent directory
return path.substring(0, e+1);
}
final int j = path.lastIndexOf("!") + 1; // '!' Separates JARFile entry -> local start of path
// path is a directory ..
final int p = path.lastIndexOf("/", e-1);
if( p >= j) {
return path.substring(0, p+1);
}
throw new URISyntaxException(path, "parent of path contains no '/'");
}
/**
* @param path assuming a slashified path beginning with "/" as it's root directory, either denotes a file or directory.
* @return clean path string where ../ and ./ is resolved.
* @throws URISyntaxException if path is empty or has no parent directory available while resolving ../
*/
public static String cleanPathString(String path) throws URISyntaxException {
int idx;
while ( ( idx = path.indexOf("../") ) >= 0 ) {
path = getParentOf(path.substring(0, idx)) + path.substring(idx+3);
}
while ( ( idx = path.indexOf("./") ) >= 0 ) {
path = path.substring(0, idx) + path.substring(idx+2);
}
return path;
}
public static final Pattern patternSpaceEnc = Pattern.compile("%20");
/**
* If uri is a file scheme
* implementation returns {@link Uri#toFile()}.{@link File#getPath()}.
*
* Otherwise it returns the {@link URI#toASCIIString()} encoded URI.
*
*/
public static String getUriFilePathOrASCII(final Uri uri) {
if( uri.isFileScheme() ) {
return uri.toFile().getPath();
} else {
return uri.toASCIIString().get();
}
}
/**
* Returns the connected URLConnection, or null if not url is not available
*/
public static URLConnection openURL(final URL url) {
return openURL(url, ".");
}
/**
* Returns the connected URLConnection, or null if not url is not available
*/
public static URLConnection openURL(final URL url, final String dbgmsg) {
if(null!=url) {
try {
final URLConnection c = url.openConnection();
c.connect(); // redundant
if(DEBUG) {
System.err.println("IOUtil: urlExists("+url+") ["+dbgmsg+"] - true");
}
return c;
} catch (final IOException ioe) {
if(DEBUG) {
System.err.println("IOUtil: urlExists("+url+") ["+dbgmsg+"] - false - "+ioe.getClass().getSimpleName()+": "+ioe.getMessage());
ioe.printStackTrace();
}
}
} else if(DEBUG) {
System.err.println("IOUtil: no url - urlExists(null) ["+dbgmsg+"]");
}
return null;
}
private static String getExeTestFileSuffix() {
switch(PlatformPropsImpl.OS_TYPE) {
case WINDOWS:
if( Platform.CPUFamily.X86 == PlatformPropsImpl.CPU_ARCH.family ) {
return ".exe";
} else {
return ".bat";
}
default:
return ".sh";
}
}
private static String getExeTestShellCode() {
switch(PlatformPropsImpl.OS_TYPE) {
case WINDOWS:
return "echo off"+PlatformPropsImpl.NEWLINE;
default:
return null;
}
}
private static String[] getExeTestCommandArgs(final String scriptFile) {
switch(PlatformPropsImpl.OS_TYPE) {
case WINDOWS:
// return new String[] { "cmd", "/c", scriptFile };
default:
return new String[] { scriptFile };
}
}
private static final byte[] getBytesFromRelFile(final byte[] res, final String fname, final int size) throws IOException {
final URLConnection con = IOUtil.getResource(IOUtil.class, fname);
final InputStream in = con.getInputStream();
int numBytes = 0;
try {
while (true) {
final int remBytes = size - numBytes;
int count;
if ( 0 >= remBytes || (count = in.read(res, numBytes, remBytes)) == -1 ) {
break;
}
numBytes += count;
}
} finally {
in.close();
}
if( size != numBytes ) {
throw new IOException("Got "+numBytes+" bytes != expected "+size);
}
return res;
}
private static final Object exeTestBytesLock = new Object();
private static WeakReference exeTestBytesRef = null;
private static void fillExeTestFile(final File exefile) throws IOException {
if( Platform.OSType.WINDOWS == PlatformPropsImpl.OS_TYPE &&
Platform.CPUFamily.X86 == PlatformPropsImpl.CPU_ARCH.family
) {
final int codeSize = 268;
final byte[] code;
synchronized ( exeTestBytesLock ) {
byte[] _code;
if( null == exeTestBytesRef || null == ( _code = exeTestBytesRef.get() ) ) {
code = getBytesFromRelFile(new byte[512], "bin/exe-windows-i586-268b.bin", codeSize);
exeTestBytesRef = new WeakReference(code);
} else {
code = _code;
}
}
final OutputStream out = new FileOutputStream(exefile);
try {
out.write(code, 0, codeSize);
} finally {
out.close();
}
} else {
final String shellCode = getExeTestShellCode();
if( isStringSet(shellCode) ) {
final FileWriter fout = new FileWriter(exefile);
try {
fout.write(shellCode);
} finally {
fout.close();
}
}
}
}
private static boolean getOSHasNoexecFS() {
switch(PlatformPropsImpl.OS_TYPE) {
case OPENKODE:
return false;
default:
return true;
}
}
/**
* @see Free-Desktop - XDG Base Directory Specification
*/
private static boolean getOSHasFreeDesktopXDG() {
switch(PlatformPropsImpl.OS_TYPE) {
case ANDROID:
case MACOS:
case WINDOWS:
case OPENKODE:
return false;
default:
return true;
}
}
/**
* Test whether {@code file} exists and matches the given requirements
*
* @param file
* @param shallBeDir
* @param shallBeWritable
* @return
*/
public static boolean testFile(final File file, final boolean shallBeDir, final boolean shallBeWritable) {
if (!file.exists()) {
if(DEBUG) {
System.err.println("IOUtil.testFile: <"+file.getAbsolutePath()+">: does not exist");
}
return false;
}
if (shallBeDir && !file.isDirectory()) {
if(DEBUG) {
System.err.println("IOUtil.testFile: <"+file.getAbsolutePath()+">: is not a directory");
}
return false;
}
if (shallBeWritable && !file.canWrite()) {
if(DEBUG) {
System.err.println("IOUtil.testFile: <"+file.getAbsolutePath()+">: is not writable");
}
return false;
}
return true;
}
public static class StreamMonitor implements Runnable {
private final InputStream[] istreams;
private final PrintStream ostream;
private final String prefix;
public StreamMonitor(final InputStream[] streams, final PrintStream ostream, final String prefix) {
this.istreams = streams;
this.ostream = ostream;
this.prefix = prefix;
new Thread(this, "StreamMonitor-"+Thread.currentThread().getName()).start();
}
@Override
public void run()
{
final byte[] buffer = new byte[4096];
try {
int numRead;
do {
numRead = 0;
for(int i=0; i 0) {
if( null != ostream ) {
if( null != prefix ) {
ostream.write(prefix.getBytes());
}
ostream.write(buffer, 0, numReadI);
}
numRead += numReadI;
}
}
if( null != ostream ) {
ostream.flush();
}
} while (numRead >= 0);
}
catch (final IOException e) {
for(int i=0; i
* exists, and
* is a directory, and
* is writeable, and
* files can be executed from the directory
*
*
* @throws SecurityException if file creation and process execution is not allowed within the current security context
* @param dir
*/
public static boolean testDirExec(final File dir)
throws SecurityException
{
if (!testFile(dir, true, true)) {
if(DEBUG) {
System.err.println("IOUtil.testDirExec: <"+dir.getAbsolutePath()+">: Not writeable dir");
}
return false;
}
if(!getOSHasNoexecFS()) {
if(DEBUG) {
System.err.println("IOUtil.testDirExec: <"+dir.getAbsolutePath()+">: Always executable");
}
return true;
}
final long t0 = DEBUG ? System.currentTimeMillis() : 0;
final File exeTestFile;
try {
exeTestFile = File.createTempFile("jogamp_exe_tst", getExeTestFileSuffix(), dir);
} catch (final SecurityException se) {
throw se; // fwd Security exception
} catch (final IOException e) {
if(DEBUG) {
e.printStackTrace();
}
return false;
}
final long t1 = DEBUG ? System.currentTimeMillis() : 0;
int res = -1;
if(exeTestFile.setExecutable(true /* exec */, true /* ownerOnly */)) {
try {
fillExeTestFile(exeTestFile);
// Using 'Process.exec(String[])' avoids StringTokenizer of 'Process.exec(String)'
// and hence splitting up command by spaces!
final Process pr = Runtime.getRuntime().exec( getExeTestCommandArgs( exeTestFile.getCanonicalPath() ) );
/**
* Disable StreamMonitor, which throttles exec-test performance a lot!
*
* if( isStringSet(shellCode) ) {
new StreamMonitor(new InputStream[] { pr.getInputStream(), pr.getErrorStream() }, System.err, "Exe-Tst: ");
}
*/
pr.waitFor() ;
res = pr.exitValue();
} catch (final SecurityException se) {
throw se; // fwd Security exception
} catch (final Throwable t) {
res = -2;
if(DEBUG) {
System.err.println("IOUtil.testDirExec: <"+exeTestFile.getAbsolutePath()+">: Caught "+t.getClass().getSimpleName()+": "+t.getMessage());
t.printStackTrace();
}
}
}
final boolean ok = 0 == res;
final long t2 = DEBUG ? System.currentTimeMillis() : 0;
exeTestFile.delete();
if( DEBUG) {
System.err.println("IOUtil.testDirExec(): <"+dir.getAbsolutePath()+">: res "+res+" -> "+ok);
System.err.println("IOUtil.testDirExec(): total "+(t2-t0)+"ms, create "+(t1-t0)+"ms, execute "+(t2-t1)+"ms");
}
return ok;
}
private static File testDirImpl(final File dir, final boolean create, final boolean executable, final String dbgMsg)
throws SecurityException
{
final File res;
if (create && !dir.exists()) {
dir.mkdirs();
}
if( executable ) {
res = testDirExec(dir) ? dir : null;
} else {
res = testFile(dir, true, true) ? dir : null;
}
if(DEBUG) {
System.err.println("IOUtil.testDirImpl("+dbgMsg+"): <"+dir.getAbsolutePath()+">, create "+create+", exec "+executable+": "+(null != res));
}
return res;
}
/**
* Returns the directory {@code dir}, which is processed and tested as described below.
*
* - If {@code create} is {@code true} and the directory does not exist yet, it is created incl. all sub-directories.
* - If {@code dirName} exists, but is not a directory, {@code null} is being returned.
* - If the directory does not exist or is not writeable, {@code null} is being returned.
* - If {@code executable} is {@code true} and files cannot be executed from the directory, {@code null} is being returned.
*
*
* @param dir the directory to process
* @param create true if the directory shall be created if not existing
* @param executable true if the user intents to launch executables from the temporary directory, otherwise false.
* @throws SecurityException if file creation and process execution is not allowed within the current security context
*/
public static File testDir(final File dir, final boolean create, final boolean executable)
throws SecurityException
{
return testDirImpl(dir, create, executable, "testDir");
}
private static boolean isStringSet(final String s) { return null != s && 0 < s.length(); }
/**
* This methods finds [and creates] an available temporary sub-directory:
*
File tmpBaseDir = null;
if(null != testDir(tmpRoot, true, executable)) { // check tmpRoot first
for(int i = 0; null == tmpBaseDir && i<=9999; i++) {
final String tmpDirSuffix = String.format("_%04d", i); // 4 digits for iteration
tmpBaseDir = testDir(new File(tmpRoot, tmpSubDirPrefix+tmpDirSuffix), true, executable);
}
} else {
tmpBaseDir = null;
}
return tmpBaseDir;
*
*
* The iteration through [0000-9999] ensures that the code is multi-user save.
*
* @param tmpRoot
* @param executable
* @param dbgMsg
* @param tmpDirPrefix
* @return a temporary directory, writable by this user
* @throws SecurityException
*/
private static File getSubTempDir(final File tmpRoot, final String tmpSubDirPrefix, final boolean executable, final String dbgMsg)
throws SecurityException
{
File tmpBaseDir = null;
if(null != testDirImpl(tmpRoot, true /* create */, executable, dbgMsg)) { // check tmpRoot first
for(int i = 0; null == tmpBaseDir && i<=9999; i++) {
final String tmpDirSuffix = String.format("_%04d", i); // 4 digits for iteration
tmpBaseDir = testDirImpl(new File(tmpRoot, tmpSubDirPrefix+tmpDirSuffix), true /* create */, executable, dbgMsg);
}
}
return tmpBaseDir;
}
private static File getFile(final String fname) {
if( isStringSet(fname) ) {
return new File(fname);
} else {
return null;
}
}
/**
* Returns a platform independent writable directory for temporary files
* consisting of the platform's {@code temp-root} + {@link #tmpSubDir},
* e.g. {@code /tmp/jogamp_0000/}.
*
* On standard Java the {@code temp-root} folder is specified by java.io.tempdir.
*
*
* On Android the {@code temp-root} folder is relative to the applications local folder
* (see {@link Context#getDir(String, int)}) is returned, if
* the Android application/activity has registered it's Application Context
* via {@link jogamp.common.os.android.StaticContext.StaticContext#init(Context, ClassLoader) StaticContext.init(..)}.
* This allows using the temp folder w/o the need for sdcard
* access, which would be the java.io.tempdir location on Android!
*
*
* In case {@code temp-root} is the users home folder,
* a dot is being prepended to {@link #tmpSubDir}, i.e.: {@code /home/user/.jogamp_0000/}.
*
* @param executable true if the user intents to launch executables from the temporary directory, otherwise false.
* @throws IOException if no temporary directory could be determined
* @throws SecurityException if access to java.io.tmpdir is not allowed within the current security context
*
* @see PropertyAccess#getProperty(String, boolean)
* @see Context#getDir(String, int)
*/
public static File getTempDir(final boolean executable)
throws SecurityException, IOException
{
if(!tempRootSet) { // volatile: ok
synchronized(IOUtil.class) {
if(!tempRootSet) {
tempRootSet = true;
{
final File ctxTempDir = AndroidUtils.getTempRoot(); // null if ( !Android || no android-ctx )
if(null != ctxTempDir) {
tempRootNoexec = getSubTempDir(ctxTempDir, tmpSubDir, false /* executable, see below */, "Android.ctxTemp");
tempRootExec = tempRootNoexec; // FIXME: Android temp root is always executable (?)
return tempRootExec;
}
}
final File java_io_tmpdir = getFile( PropertyAccess.getProperty(java_io_tmpdir_propkey, false) );
if(DEBUG) {
System.err.println("IOUtil.getTempRoot(): tempX1 <"+java_io_tmpdir+">, used "+(null!=java_io_tmpdir));
}
final File user_tmpdir; // only if diff than java_io_tmpdir
{
String __user_tmpdir = System.getenv("TMPDIR");
if( !isStringSet(__user_tmpdir) ) {
__user_tmpdir = System.getenv("TEMP");
}
final File _user_tmpdir = getFile(__user_tmpdir);
if( null != _user_tmpdir && !_user_tmpdir.equals(java_io_tmpdir) ) {
user_tmpdir = _user_tmpdir;
} else {
user_tmpdir = null;
}
if(DEBUG) {
System.err.println("IOUtil.getTempRoot(): tempX3 <"+_user_tmpdir+">, used "+(null!=user_tmpdir));
}
}
final File user_home = getFile( PropertyAccess.getProperty(user_home_propkey, false) );
if(DEBUG) {
System.err.println("IOUtil.getTempRoot(): tempX4 <"+user_home+">, used "+(null!=user_home));
}
final File xdg_cache_home;
{
String __xdg_cache_home;
if( getOSHasFreeDesktopXDG() ) {
__xdg_cache_home = System.getenv(XDG_CACHE_HOME_envkey);
if( !isStringSet(__xdg_cache_home) && null != user_home ) {
__xdg_cache_home = user_home.getAbsolutePath() + File.separator + ".cache" ; // default
}
} else {
__xdg_cache_home = null;
}
final File _xdg_cache_home = getFile(__xdg_cache_home);
if( null != _xdg_cache_home && !_xdg_cache_home.equals(java_io_tmpdir) ) {
xdg_cache_home = _xdg_cache_home;
} else {
xdg_cache_home = null;
}
if(DEBUG) {
System.err.println("IOUtil.getTempRoot(): tempX2 <"+_xdg_cache_home+">, used "+(null!=xdg_cache_home));
}
}
// 1) java.io.tmpdir/jogamp
if( null == tempRootExec && null != java_io_tmpdir ) {
if( Platform.OSType.MACOS == PlatformPropsImpl.OS_TYPE ) {
// Bug 865: Safari >= 6.1 [OSX] May employ xattr on 'com.apple.quarantine' on 'PluginProcess.app'
// We attempt to fix this issue _after_ gluegen native lib is loaded, see JarUtil.fixNativeLibAttribs(File).
tempRootExec = getSubTempDir(java_io_tmpdir, tmpSubDir, false /* executable */, "tempX1");
} else {
tempRootExec = getSubTempDir(java_io_tmpdir, tmpSubDir, true /* executable */, "tempX1");
}
}
// 2) $XDG_CACHE_HOME/jogamp
if( null == tempRootExec && null != xdg_cache_home ) {
tempRootExec = getSubTempDir(xdg_cache_home, tmpSubDir, true /* executable */, "tempX2");
}
// 3) $TMPDIR/jogamp
if( null == tempRootExec && null != user_tmpdir ) {
tempRootExec = getSubTempDir(user_tmpdir, tmpSubDir, true /* executable */, "tempX3");
}
// 4) $HOME/.jogamp
if( null == tempRootExec && null != user_home ) {
tempRootExec = getSubTempDir(user_home, "." + tmpSubDir, true /* executable */, "tempX4");
}
if( null != tempRootExec ) {
tempRootNoexec = tempRootExec;
} else {
// 1) java.io.tmpdir/jogamp
if( null == tempRootNoexec && null != java_io_tmpdir ) {
tempRootNoexec = getSubTempDir(java_io_tmpdir, tmpSubDir, false /* executable */, "temp01");
}
// 2) $XDG_CACHE_HOME/jogamp
if( null == tempRootNoexec && null != xdg_cache_home ) {
tempRootNoexec = getSubTempDir(xdg_cache_home, tmpSubDir, false /* executable */, "temp02");
}
// 3) $TMPDIR/jogamp
if( null == tempRootNoexec && null != user_tmpdir ) {
tempRootNoexec = getSubTempDir(user_tmpdir, tmpSubDir, false /* executable */, "temp03");
}
// 4) $HOME/.jogamp
if( null == tempRootNoexec && null != user_home ) {
tempRootNoexec = getSubTempDir(user_home, "." + tmpSubDir, false /* executable */, "temp04");
}
}
if(DEBUG) {
final String tempRootExecAbsPath = null != tempRootExec ? tempRootExec.getAbsolutePath() : null;
final String tempRootNoexecAbsPath = null != tempRootNoexec ? tempRootNoexec.getAbsolutePath() : null;
System.err.println("IOUtil.getTempRoot(): temp dirs: exec: "+tempRootExecAbsPath+", noexec: "+tempRootNoexecAbsPath);
}
}
}
}
final File r = executable ? tempRootExec : tempRootNoexec ;
if(null == r) {
final String exe_s = executable ? "executable " : "";
throw new IOException("Could not determine a temporary "+exe_s+"directory");
}
final FilePermission fp = new FilePermission(r.getAbsolutePath(), "read,write,delete");
SecurityUtil.checkPermission(fp);
return r;
}
private static File tempRootExec = null; // writeable and executable
private static File tempRootNoexec = null; // writeable, maybe executable
private static volatile boolean tempRootSet = false;
/**
* Utilizing {@link File#createTempFile(String, String, File)} using
* {@link #getTempDir(boolean)} as the directory parameter, ie. location
* of the root temp folder.
*
* @see File#createTempFile(String, String)
* @see File#createTempFile(String, String, File)
* @see #getTempDir(boolean)
*
* @param prefix
* @param suffix
* @param executable true if the temporary root folder needs to hold executable files, otherwise false.
* @return
* @throws IllegalArgumentException
* @throws IOException if no temporary directory could be determined or temp file could not be created
* @throws SecurityException
*/
public static File createTempFile(final String prefix, final String suffix, final boolean executable)
throws IllegalArgumentException, IOException, SecurityException
{
return File.createTempFile( prefix, suffix, getTempDir(executable) );
}
public static void close(final Closeable stream, final boolean throwRuntimeException) throws RuntimeException {
if(null != stream) {
try {
stream.close();
} catch (final IOException e) {
if(throwRuntimeException) {
throw new RuntimeException(e);
} else if(DEBUG) {
System.err.println("Caught Exception: ");
e.printStackTrace();
}
}
}
}
/**
* Helper to simplify closing {@link Closeable}s.
*
* @param stream the {@link Closeable} instance to close
* @param saveOneIfFree cache for one {@link IOException} to store, if not already used (excess)
* @param dumpExcess dump the excess {@link IOException} on this {@link PrintStream}
* @return the excess {@link IOException} or {@code null}.
*/
public static IOException close(final Closeable stream, final IOException[] saveOneIfFree, final PrintStream dumpExcess) {
try {
stream.close();
} catch(final IOException e) {
if( null == saveOneIfFree[0] ) {
saveOneIfFree[0] = e;
} else {
if( null != dumpExcess ) {
dumpExcess.println("Caught "+e.getClass().getSimpleName()+": "+e.getMessage());
e.printStackTrace(dumpExcess);
}
return e;
}
}
return null;
}
}