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com.codename1.tools.translator.ByteCodeTranslator Maven / Gradle / Ivy
/*
* Copyright (c) 2012, Codename One 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. Codename One 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 Codename One through http://www.codenameone.com/ if you
* need additional information or have any questions.
*/
package com.codename1.tools.translator;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.FilenameFilter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
*
* @author Shai Almog
*/
public class ByteCodeTranslator {
public static enum OutputType {
OUTPUT_TYPE_IOS {
@Override
public String extension() {
return "m";
}
},
OUTPUT_TYPE_CSHARP {
@Override
public String extension() {
return "cs";
}
};
public abstract String extension();
};
public static OutputType output = OutputType.OUTPUT_TYPE_IOS;
public static boolean verbose = true;
ByteCodeTranslator() {
}
/**
* Recursively parses the files in the hierarchy to the output directory
*/
void execute(File[] sourceDirs, File outputDir) throws Exception {
for(File f : sourceDirs) {
execute(f, outputDir);
}
}
void execute(File sourceDir, File outputDir) throws Exception {
File[] directoryList = sourceDir.listFiles(new FileFilter() {
@Override
public boolean accept(File pathname) {
return !pathname.isHidden() && !pathname.getName().startsWith(".") && pathname.isDirectory();
}
});
File[] fileList = sourceDir.listFiles(new FileFilter() {
@Override
public boolean accept(File pathname) {
return !pathname.isHidden() && !pathname.getName().startsWith(".") && !pathname.isDirectory();
}
});
if(fileList != null) {
for(File f : fileList) {
if (f.getName().equals("module-info.class")) {
// Remove module-info.class that might have been added by jdk9 compile
System.out.println("WARNING: Found module-info.class file at "+f+". One or more of your jars must have been built for JDK9 or higher. -target 8 or lower is required.");
System.out.println(" Will ignore this warning and attempt build anyways.");
continue;
}
if(f.getName().endsWith(".class")) {
Parser.parse(f);
} else {
if(!f.isDirectory()) {
// copy the file to the dest dir
copy(new FileInputStream(f), new FileOutputStream(new File(outputDir, f.getName())));
}
}
}
}
if(directoryList != null) {
for(File f : directoryList) {
if(f.getName().endsWith(".bundle") || f.getName().endsWith(".xcdatamodeld")) {
copyDir(f, outputDir);
continue;
}
execute(f, outputDir);
}
}
}
private void copyDir(File source, File destDir) throws IOException {
File destFile = new File(destDir, source.getName());
destFile.mkdirs();
File[] files = source.listFiles();
for(File f : files) {
if(f.isDirectory()) {
copyDir(f, destFile);
} else {
copy(new FileInputStream(f), new FileOutputStream(new File(destFile, f.getName())));
}
}
}
//
// make sure a directory is clean. This is applied
// to output directories, and should normally be a no-op
// .. except if some accident occurred or this is a reliberate
// re-run of a failed build.
// the underlying purpose is to make repeated builds produce the same result.
//
/*private static void cleanDir(File dir)
{ //
// this recursively deletes everything, so be cautious about this!
// this is called only on directories we supposedly have just created.
//
File [] current = dir.listFiles();
if(current.length>0) { // unusual and worth a mention
System.out.println("cleanup before build, removing "+current.length+" files in "+dir);
for(File cf : current)
{ if(cf.isDirectory()) { cleanDir(cf); }
cf.delete();
}
}
}*/
/**
* @param args the command line arguments
*/
public static void main(String[] args) throws Exception {
if(args.length == 0) {
new File("build/kitchen").mkdirs();
args = new String[] {"ios", "/Users/shai/dev/CodenameOne/ByteCodeTranslator/tmp;/Users/shai/dev/cn1/vm/JavaAPI/build/classes;/Users/shai/dev/cn1/Ports/iOSPort/build/classes;/Users/shai/dev/cn1/Ports/iOSPort/nativeSources;/Users/shai/dev/cn1/CodenameOne/build/classes;/Users/shai/dev/codenameone-demos/KitchenSink/build/classes",
"build/kitchen", "KitchenSink", "com.codename1.demos.kitchen", "Kitchen Sink", "1.0", "ios", "none"};
}
if(args.length != 9) {
System.out.println("We accept 9 arguments output type (ios, csharp), input directory, output directory, app name, package name, app dispaly name, version, type (ios/iphone/ipad) and additional frameworks");
System.exit(1);
return;
}
final String appName = args[3];
final String appPackageName = args[4];
final String appDisplayName = args[5];
final String appVersion = args[6];
final String appType = args[7];
final String addFrameworks = args[8];
// we accept 3 arguments output type, input directory & output directory
if (System.getProperty("saveUnitTests", "false").equals("true")) {
System.out.println("Generating Unit Tests");
ByteCodeClass.setSaveUnitTests(true);
}
if(args[0].equalsIgnoreCase("csharp")) {
output = OutputType.OUTPUT_TYPE_CSHARP;
}
String[] sourceDirectories = args[1].split(";");
File[] sources = new File[sourceDirectories.length];
for(int iter = 0 ; iter < sourceDirectories.length ; iter++) {
sources[iter] = new File(sourceDirectories[iter]);
if(!sources[iter].exists() && sources[iter].isDirectory()) {
System.out.println("Source directory doesn't exist: " + sources[iter].getAbsolutePath());
System.exit(2);
return;
}
}
File dest = new File(args[2]);
if(!dest.exists() && dest.isDirectory()) {
System.out.println("Dest directory doesn't exist: " + dest.getAbsolutePath());
System.exit(3);
return;
}
ByteCodeTranslator b = new ByteCodeTranslator();
if(output == OutputType.OUTPUT_TYPE_IOS) {
File root = new File(dest, "dist");
root.mkdirs();
System.out.println("Root is: " + root.getAbsolutePath());
File srcRoot = new File(root, appName + "-src");
srcRoot.mkdirs();
//cleanDir(srcRoot);
System.out.println("srcRoot is: " + srcRoot.getAbsolutePath() );
File imagesXcassets = new File(srcRoot, "Images.xcassets");
imagesXcassets.mkdirs();
//cleanDir(imagesXcassets);
File launchImageLaunchimage = new File(imagesXcassets, "LaunchImage.launchimage");
launchImageLaunchimage.mkdirs();
//cleanDir(launchImageLaunchimage);
copy(ByteCodeTranslator.class.getResourceAsStream("/LaunchImages.json"), new FileOutputStream(new File(launchImageLaunchimage, "Contents.json")));
File appIconAppiconset = new File(imagesXcassets, "AppIcon.appiconset");
appIconAppiconset.mkdirs();
//cleanDir(appIconAppiconset);
copy(ByteCodeTranslator.class.getResourceAsStream("/Icons.json"), new FileOutputStream(new File(appIconAppiconset, "Contents.json")));
File xcproj = new File(root, appName + ".xcodeproj");
xcproj.mkdirs();
//cleanDir(xcproj);
File projectXCworkspace = new File(xcproj, "project.xcworkspace");
projectXCworkspace.mkdirs();
//cleanDir(projectXCworkspace);
/*File xcsharedData = new File(projectXCworkspace, "xcshareddata");
xcsharedData.mkdirs();*/
b.execute(sources, srcRoot);
File cn1Globals = new File(srcRoot, "cn1_globals.h");
copy(ByteCodeTranslator.class.getResourceAsStream("/cn1_globals.h"), new FileOutputStream(cn1Globals));
if (System.getProperty("INCLUDE_NPE_CHECKS", "false").equals("true")) {
replaceInFile(cn1Globals, "//#define CN1_INCLUDE_NPE_CHECKS", "#define CN1_INCLUDE_NPE_CHECKS");
}
File cn1GlobalsM = new File(srcRoot, "cn1_globals.m");
copy(ByteCodeTranslator.class.getResourceAsStream("/cn1_globals.m"), new FileOutputStream(cn1GlobalsM));
File nativeMethods = new File(srcRoot, "nativeMethods.m");
copy(ByteCodeTranslator.class.getResourceAsStream("/nativeMethods.m"), new FileOutputStream(nativeMethods));
if (System.getProperty("USE_RPMALLOC", "false").equals("true")) {
File malloc = new File(srcRoot, "malloc.c");
copy(ByteCodeTranslator.class.getResourceAsStream("/malloc.c"), new FileOutputStream(malloc));
File rpmalloc = new File(srcRoot, "rpmalloc.c");
copy(ByteCodeTranslator.class.getResourceAsStream("/rpmalloc.c"), new FileOutputStream(rpmalloc));
File rpmalloch = new File(srcRoot, "rpmalloc.h");
copy(ByteCodeTranslator.class.getResourceAsStream("/rpmalloc.h"), new FileOutputStream(rpmalloch));
}
Parser.writeOutput(srcRoot);
File templateInfoPlist = new File(srcRoot, appName + "-Info.plist");
copy(ByteCodeTranslator.class.getResourceAsStream("/template/template/template-Info.plist"), new FileOutputStream(templateInfoPlist));
File templatePch = new File(srcRoot, appName + "-Prefix.pch");
copy(ByteCodeTranslator.class.getResourceAsStream("/template/template/template-Prefix.pch"), new FileOutputStream(templatePch));
File xmlvm = new File(srcRoot, "xmlvm.h");
copy(ByteCodeTranslator.class.getResourceAsStream("/xmlvm.h"), new FileOutputStream(xmlvm));
File projectWorkspaceData = new File(projectXCworkspace, "contents.xcworkspacedata");
copy(ByteCodeTranslator.class.getResourceAsStream("/template/template.xcodeproj/project.xcworkspace/contents.xcworkspacedata"), new FileOutputStream(projectWorkspaceData));
replaceInFile(projectWorkspaceData, "KitchenSink", appName);
File projectPbx = new File(xcproj, "project.pbxproj");
copy(ByteCodeTranslator.class.getResourceAsStream("/template/template.xcodeproj/project.pbxproj"), new FileOutputStream(projectPbx));
String[] sourceFiles = srcRoot.list(new FilenameFilter() {
@Override
public boolean accept(File pathname, String string) {
return string.endsWith(".bundle") || string.endsWith(".xcdatamodeld") || !pathname.isHidden() && !string.startsWith(".") && !"Images.xcassets".equals(string);
}
});
StringBuilder fileOneEntry = new StringBuilder();
StringBuilder fileTwoEntry = new StringBuilder();
StringBuilder fileListEntry = new StringBuilder();
StringBuilder fileThreeEntry = new StringBuilder();
StringBuilder frameworks = new StringBuilder();
StringBuilder frameworks2 = new StringBuilder();
StringBuilder resources = new StringBuilder();
List noArcFiles = new ArrayList();
noArcFiles.add("CVZBarReaderViewController.m");
noArcFiles.add("OpenUDID.m");
List includeFrameworks = new ArrayList();
Set optionalFrameworks = new HashSet();
for (String optionalFramework : System.getProperty("optional.frameworks", "").split(";")) {
optionalFramework = optionalFramework.trim();
if (!optionalFramework.isEmpty()) {
optionalFrameworks.add(optionalFramework);
}
}
optionalFrameworks.add("UserNotifications.framework");
includeFrameworks.add("libiconv.dylib");
//includeFrameworks.add("AdSupport.framework");
includeFrameworks.add("AddressBookUI.framework");
includeFrameworks.add("SystemConfiguration.framework");
includeFrameworks.add("MapKit.framework");
includeFrameworks.add("AudioToolbox.framework");
includeFrameworks.add("libxml2.dylib");
includeFrameworks.add("QuartzCore.framework");
includeFrameworks.add("AddressBook.framework");
includeFrameworks.add("libsqlite3.dylib");
includeFrameworks.add("libsqlite3.0.dylib");
includeFrameworks.add("GameKit.framework");
includeFrameworks.add("Security.framework");
//includeFrameworks.add("StoreKit.framework");
includeFrameworks.add("CoreMotion.framework");
includeFrameworks.add("CoreLocation.framework");
includeFrameworks.add("MessageUI.framework");
includeFrameworks.add("MediaPlayer.framework");
includeFrameworks.add("AVFoundation.framework");
includeFrameworks.add("CoreVideo.framework");
includeFrameworks.add("QuickLook.framework");
//includeFrameworks.add("iAd.framework");
includeFrameworks.add("CoreMedia.framework");
includeFrameworks.add("libz.dylib");
includeFrameworks.add("MobileCoreServices.framework");
includeFrameworks.add("AVKit.framework");
if(!addFrameworks.equalsIgnoreCase("none")) {
includeFrameworks.addAll(Arrays.asList(addFrameworks.split(";")));
}
int currentValue = 0xF63EAAA;
ArrayList arr = new ArrayList();
arr.addAll(includeFrameworks);
arr.addAll(Arrays.asList(sourceFiles));
for(String file : arr) {
fileListEntry.append(" 0");
currentValue++;
String fileOneValue = Integer.toHexString(currentValue).toUpperCase();
fileListEntry.append(fileOneValue);
fileListEntry.append("18E9ABBC002F3D1D /* ");
fileListEntry.append(file);
fileListEntry.append(" */ = {isa = PBXFileReference; lastKnownFileType = ");
fileListEntry.append(getFileType(file));
if(file.endsWith(".framework") || file.endsWith(".dylib") || file.endsWith(".a")) {
fileListEntry.append("; name = \"");
fileListEntry.append(file);
if(file.endsWith(".dylib")) {
fileListEntry.append("\"; path = \"usr/lib/");
fileListEntry.append(file);
fileListEntry.append("\"; sourceTree = SDKROOT; };\n");
} else {
if(file.endsWith(".a")) {
fileListEntry.append("\"; path = \"");
fileListEntry.append(appName);
fileListEntry.append("-src/");
fileListEntry.append(file);
fileListEntry.append("\"; sourceTree = \"\"; };\n");
} else {
fileListEntry.append("\"; path = System/Library/Frameworks/");
fileListEntry.append(file);
fileListEntry.append("; sourceTree = SDKROOT; };\n");
}
}
} else {
fileListEntry.append("; path = \"");
if(file.endsWith(".m") || file.endsWith(".c") || file.endsWith(".cpp") || file.endsWith(".mm") || file.endsWith(".h") ||
file.endsWith(".bundle") || file.endsWith(".xcdatamodeld") || file.endsWith(".hh") || file.endsWith(".hpp") || file.endsWith(".xib")) {
fileListEntry.append(file);
} else {
fileListEntry.append(appName);
fileListEntry.append("-src/");
fileListEntry.append(file);
}
fileListEntry.append("\"; sourceTree = \"\"; };\n");
}
currentValue++;
fileOneEntry.append(" 0");
String referenceValue = Integer.toHexString(currentValue).toUpperCase();
fileOneEntry.append(referenceValue);
fileOneEntry.append("18E9ABBC002F3D1D /* ");
fileOneEntry.append(file);
fileOneEntry.append(" */ = {isa = PBXBuildFile; fileRef = 0");
fileOneEntry.append(fileOneValue);
fileOneEntry.append("18E9ABBC002F3D1D /* ");
fileOneEntry.append(file);
String injectFileSettings = "";
if (optionalFrameworks.contains(file)) {
injectFileSettings += " ATTRIBUTES = (Weak, );";
}
String fileSettingsDefault = "settings = {"+injectFileSettings.trim()+" }; ";
if(noArcFiles.contains(file)) {
fileOneEntry.append(" */; settings = {COMPILER_FLAGS = \"-fno-objc-arc\";"+injectFileSettings+" }; };\n");
} else {
fileOneEntry.append(" */;"+fileSettingsDefault+" };\n");
}
if(file.endsWith(".m") || file.endsWith(".c") || file.endsWith(".cpp") || file.endsWith(".hh") || file.endsWith(".hpp") ||
file.endsWith(".mm") || file.endsWith(".h") || file.endsWith(".bundle") || file.endsWith(".xcdatamodeld") || file.endsWith(".xib")) {
// bundle also needs to be a runtime resource
if(file.endsWith(".bundle") || file.endsWith(".xcdatamodeld")) {
resources.append("\n 0");
resources.append(referenceValue);
resources.append("18E9ABBC002F3D1D /* ");
resources.append(file);
resources.append(" */,");
}
fileTwoEntry.append(" 0");
fileTwoEntry.append(fileOneValue);
fileTwoEntry.append("18E9ABBC002F3D1D /* ");
fileTwoEntry.append(file);
fileTwoEntry.append(" */,\n");
if(!file.endsWith(".h") && !file.endsWith(".hpp") && !file.endsWith(".hh") && !file.endsWith(".bundle")) {
fileThreeEntry.append(" 0");
fileThreeEntry.append(referenceValue);
fileThreeEntry.append("18E9ABBC002F3D1D /* ");
fileThreeEntry.append(file);
fileThreeEntry.append(" */,\n");
}
} else {
if(file.endsWith(".a") || file.endsWith(".framework") || file.endsWith(".dylib") || (file.endsWith("Info.plist") && !"GoogleService-Info.plist".equals(file)) || file.endsWith(".pch")) {
frameworks.append(" 0");
frameworks.append(referenceValue);
frameworks.append("18E9ABBC002F3D1D /* ");
frameworks.append(file);
frameworks.append(" */,\n");
frameworks2.append(" 0");
frameworks2.append(fileOneValue);
frameworks2.append("18E9ABBC002F3D1D /* ");
frameworks2.append(file);
frameworks2.append(" */,\n");
/*
// Removing this because it causes crashes in cocoapods.
// Why was it necessary to add .a files to the same group
// as the sources, if we've already added it to frameworks.
// Related to https://stackoverflow.com/questions/47210585/codename-one-issue-devilering-binary-for-ios
if(file.endsWith(".a")) {
fileTwoEntry.append(" 0");
fileTwoEntry.append(fileOneValue);
fileTwoEntry.append("18E9ABBC002F3D1D /* ");
fileTwoEntry.append(file);
fileTwoEntry.append(" *").append("/,\n");
if(!file.endsWith(".h") && !file.endsWith(".bundle") && !file.endsWith(".xcdatamodeld")) {
fileThreeEntry.append(" 0");
fileThreeEntry.append(referenceValue);
fileThreeEntry.append("18E9ABBC002F3D1D /* ");
fileThreeEntry.append(file);
fileThreeEntry.append(" *").append("/,\n");
}
}*/
} else {
// standard resource file
resources.append("\n 0");
resources.append(referenceValue);
resources.append("18E9ABBC002F3D1D /* ");
resources.append(file);
resources.append(" */,");
}
}
}
if(!appType.equalsIgnoreCase("ios")) {
String devFamily = "TARGETED_DEVICE_FAMILY = \"2\";";
if(appType.equalsIgnoreCase("iphone")) {
devFamily = "TARGETED_DEVICE_FAMILY = \"1\";";
}
replaceInFile(projectPbx, "template", appName, "**ACTUAL_FILES**", fileListEntry.toString(),
"**FILE_LIST**", fileOneEntry.toString(), "** FILE_LIST_2 **", fileTwoEntry.toString(),
"**FILES_3**", fileThreeEntry.toString(), "***FRAMEWORKS***", frameworks.toString(),
"***FRAMEWORKS2***", frameworks2.toString(), "TARGETED_DEVICE_FAMILY = \"1,2\";", devFamily,
"***RESOURCES***", resources.toString());
} else {
replaceInFile(projectPbx, "template", appName, "**ACTUAL_FILES**", fileListEntry.toString(),
"**FILE_LIST**", fileOneEntry.toString(), "** FILE_LIST_2 **", fileTwoEntry.toString(),
"**FILES_3**", fileThreeEntry.toString(), "***FRAMEWORKS***", frameworks.toString(),
"***FRAMEWORKS2***", frameworks2.toString(), "***RESOURCES***", resources.toString());
}
String bundleVersion = System.getProperty("bundleVersionNumber", appVersion);
replaceInFile(templateInfoPlist, "com.codename1pkg", appPackageName, "${PRODUCT_NAME}", appDisplayName, "VERSION_VALUE", appVersion, "VERSION_BUNDLE_VALUE", bundleVersion);
} else {
b.execute(sources, dest);
Parser.writeOutput(dest);
}
}
private static String getFileType(String s) {
if(s.endsWith(".framework")) {
return "wrapper.framework";
}
if(s.endsWith(".a")) {
return "archive.ar";
}
if(s.endsWith(".dylib")) {
return "compiled.mach-o.dylib";
}
if(s.endsWith(".h")) {
return "sourcecode.c.h";
}
if(s.endsWith(".pch")) {
return "sourcecode.c.objc.preprocessed";
}
if(s.endsWith(".hh") || s.endsWith(".hpp")) {
return "sourcecode.cpp.h";
}
if(s.endsWith(".plist")) {
return "text.plist.xml";
}
if(s.endsWith(".bundle") || s.endsWith("xcdatamodeld")) {
return "wrapper.plug-in";
}
if(s.endsWith(".m") || s.endsWith(".c")) {
return "sourcecode.c.objc";
}
if(s.endsWith(".xcassets")) {
return "folder.assetcatalog";
}
if(s.endsWith(".mm") || s.endsWith(".cpp")) {
return "sourcecode.cpp.objc";
}
if(s.endsWith(".xib")) {
return "file.xib";
}
if(s.endsWith(".res") || s.endsWith(".ttf") ) {
return "file";
}
if(s.endsWith(".png")) {
return "image.png";
}
if(s.endsWith(".strings")) {
return "text.plist.strings";
}
return "file";
}
//
// Be kind to the GC; read as a StringBuilder, a data type designed
// to be mutated. Also, expire the temporary byte[] buffer so it can
// be collected.
//
private static StringBuilder readFileAsStringBuilder(File sourceFile) throws IOException
{
DataInputStream dis = new DataInputStream(new FileInputStream(sourceFile));
byte[] data = new byte[(int)sourceFile.length()];
dis.readFully(data);
dis.close();
StringBuilder b = new StringBuilder(new String(data));
return b;
}
//
// rewrite 4/2017 by ddyer to use more appropriate data
// structures, minimizing gc thrashing. This avoids a big
// spike in memory and gc usage (and corresponding build
// failures due to OutOfMemoryError) at the very end of the build
// process for large projects.
//
private static void replaceInFile(File sourceFile, String... values) throws IOException {
StringBuilder str = readFileAsStringBuilder(sourceFile);
int totchanges = 0;
// perform the mutations on stringbuilder, which ought to implement
// these operations efficiently.
for (int iter = 0; iter < values.length; iter += 2) {
String target = values[iter];
String replacement = values[iter + 1];
int index = 0;
while ((index = str.indexOf(target, index)) >= 0) {
int targetSize = target.length();
str.replace(index, index + targetSize, replacement);
index += replacement.length();
totchanges++;
}
}
//
// don't start the output file until all the processing is done
//
System.out.println("Rewrite " + sourceFile + " with " + totchanges + " changes");
FileWriter fios = new FileWriter(sourceFile);
fios.write(str.toString());
fios.close();
}
/**
* Copy the input stream into the output stream, closes both streams when finishing or in
* a case of an exception
*
* @param i source
* @param o destination
*/
public static void copy(InputStream i, OutputStream o) throws IOException {
copy(i, o, 8192);
}
/**
* Copy the input stream into the output stream, closes both streams when finishing or in
* a case of an exception
*
* @param i source
* @param o destination
* @param bufferSize the size of the buffer, which should be a power of 2 large enoguh
*/
public static void copy(InputStream i, OutputStream o, int bufferSize) throws IOException {
try {
byte[] buffer = new byte[bufferSize];
int size = i.read(buffer);
while(size > -1) {
o.write(buffer, 0, size);
size = i.read(buffer);
}
} finally {
cleanup(o);
cleanup(i);
}
}
/**
* Closes the object (connection, stream etc.) without throwing any exception, even if the
* object is null
*
* @param o Connection, Stream or other closeable object
*/
public static void cleanup(Object o) {
try {
if(o instanceof OutputStream) {
((OutputStream)o).close();
return;
}
if(o instanceof InputStream) {
((InputStream)o).close();
return;
}
} catch(IOException err) {
err.printStackTrace();
}
}
}
