processing4/app/src/processing/app/Platform.java at main · processing/processing4 · GitHub

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/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */

Part of the Processing project - http://processing.org

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.

This program 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 for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software Foundation,

Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

package processing.app;

import com.sun.jna.platform.FileUtils;

import processing.app.platform.DefaultPlatform;

import processing.core.PApplet;

import processing.core.PConstants;

import processing.data.StringDict;

import java.io.File;

import java.io.IOException;

import java.lang.management.ManagementFactory;

import java.net.URISyntaxException;

import java.net.URL;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

public class Platform extends processing.utils.Platform {

static DefaultPlatform inst;

static Map<Integer, String> platformNames = new HashMap<>();

static {

platformNames.put(PConstants.WINDOWS, "windows"); //$NON-NLS-1$

platformNames.put(PConstants.MACOS, "macos"); //$NON-NLS-1$

platformNames.put(PConstants.LINUX, "linux"); //$NON-NLS-1$

}

// TODO only used in one place, probably overkill for this to be a map

static Map<String, Integer> platformIndices = new HashMap<>();

static {

platformIndices.put("windows", PConstants.WINDOWS); //$NON-NLS-1$

platformIndices.put("macos", PConstants.MACOS); //$NON-NLS-1$

platformIndices.put("linux", PConstants.LINUX); //$NON-NLS-1$

}

/** How many bits this machine is */

static int nativeBits;

static {

nativeBits = 32; // perhaps start with 32

String bits = System.getProperty("sun.arch.data.model"); //$NON-NLS-1$

if (bits != null) {

if (bits.equals("64")) { //$NON-NLS-1$

nativeBits = 64;

}

} else {

// if some other strange vm, maybe try this instead

if (System.getProperty("java.vm.name").contains("64")) { //$NON-NLS-1$ //$NON-NLS-2$

nativeBits = 64;

}

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

static public boolean isAvailable() {

return inst != null;

}

static {

init();

}

static public void init() {

try {

// Start with DefaultPlatform, but try to upgrade to a known platform

final String packageName = DefaultPlatform.class.getPackageName();

Class<?> platformClass =

Class.forName(packageName + ".DefaultPlatform");

if (Platform.isMacOS()) {

platformClass = Class.forName(packageName + ".MacPlatform");

} else if (Platform.isWindows()) {

platformClass = Class.forName(packageName + ".WindowsPlatform");

} else if (Platform.isLinux()) {

platformClass = Class.forName(packageName + ".LinuxPlatform");

}

inst = (DefaultPlatform) platformClass.getDeclaredConstructor().newInstance();

} catch (Exception e) {

Messages.showError("Problem Setting the Platform",

"An unknown error occurred while trying to load\n" +

"platform-specific code for your machine.", e);

}

// Fix the issue where `java.home` points to the JRE instead of the JDK. processing/processing4#1163

System.setProperty("java.home", getJavaHome().getAbsolutePath());

}

static public void initBase(Base base) throws Exception {

inst.initBase(base);

}

static public void setLookAndFeel() throws Exception {

inst.setLookAndFeel();

}

static public void setInterfaceZoom() throws Exception {

inst.setInterfaceZoom();

}

static public float getSystemZoom() {

return inst == null ? 1 : inst.getSystemZoom();

}

static public File getDefaultSketchbookFolder() throws Exception {

return inst.getDefaultSketchbookFolder();

}

static public void saveLanguage(String languageCode) {

inst.saveLanguage(languageCode);

}

/**

* Implements the cross-platform headache of opening URLs.

* <p>

* Since 2.0a8, this requires the parameter to be an actual URL,

* meaning that you can't send it a file:// path without a prefix.

* It also just calls into Platform, which now uses java.awt.Desktop

* (where possible). The URL must also be properly URL-encoded.

static public void openURL(String url) {

try {

inst.openURL(url);

} catch (Exception e) {

Messages.showWarning("Problem Opening URL",

"Could not open the URL\n" + url, e);

}

/**

* Used to determine whether to disable the "Show Sketch Folder" option.

* @return true If a means of opening a folder is known to be available.

static public boolean openFolderAvailable() {

return inst.openFolderAvailable();

}

/**

* Implements the other cross-platform headache of opening

* a folder in the machine's native file browser.

static public void openFolder(File file) {

try {

inst.openFolder(file);

} catch (Exception e) {

Messages.showWarning("Problem Opening Folder",

"Could not open the folder\n" + file.getAbsolutePath(), e);

}

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

// /**

// * Return whether sketches will run as 32- or 64-bits based

// * on the JVM that's in use.

// */

// static public int getNativeBits() {

// return nativeBits;

// }

/**

* Return the value of the os.arch property

static public String getNativeArch() {

// This will return "arm" for 32-bit ARM on Linux,

// and "aarch64" for 64-bit ARM on Linux (rpi) and Apple Silicon

// (the latter only when using a native 64-bit ARM VM on macOS,

// which as of 4.0 alpha 5 is not being used b/c of missing libs).

return System.getProperty("os.arch");

}

static public String getVariant() {

return getName() + "-" + getNativeArch();

}

static StringDict supportedVariants = new StringDict(new String[][] {

{ "macos-x86_64", "macOS (Intel 64-bit)" },

{ "macos-aarch64", "macOS (Apple Silicon)" },

{ "windows-amd64", "Windows (Intel 64-bit)" },

{ "linux-amd64", "Linux (Intel 64-bit)" },

{ "linux-arm", "Linux (Raspberry Pi 32-bit)" },

{ "linux-aarch64", "Linux (Raspberry Pi 64-bit)" }

});

/**

* List of variants that are supported by this release of the PDE.

static public StringDict getSupportedVariants() {

return supportedVariants;

}

// /*

// * Return a string that identifies the variant of a platform

// * e.g. "32" or "64" on Intel

// */

static public String getVariant() {

return getVariant(PApplet.platform, getNativeArch(), getNativeBits());

}

static public String getVariant(int platform, String arch, int bits) {

if (platform == PConstants.LINUX &&

bits == 32 && "arm".equals(Platform.getNativeArch())) {

return "armv6hf"; // assume armv6hf

} else if (platform == PConstants.LINUX &&

bits == 64 && "aarch64".equals(Platform.getNativeArch())) {

return "arm64";

}

return Integer.toString(bits); // 32 or 64

}

/**

* Returns one of macos, windows, linux, or other.

* Changed in 4.0b4 to return macos instead of macosx.

* Only used inside processing.app.java.

static public String getName() {

return PConstants.platformNames[PApplet.platform];

}

static public String getPrettyName() {

return supportedVariants.get(getVariant());

}

// /**

// * Map a platform constant to its name.

// * @param which PConstants.WINDOWS, PConstants.MACOSX, PConstants.LINUX

// * @return one of "windows", "macosx", or "linux"

// */

// static public String getName(int which) {

// return platformNames.get(which);

// }

static public int getIndex(String platformName) {

// if this has os.arch at the end, remove it

int index = platformName.indexOf('-');

if (index != -1) {

platformName = platformName.substring(0, index);

}

return platformIndices.getOrDefault(platformName, -1);

}

// These were changed to no longer rely on PApplet and PConstants because

// of conflicts that could happen with older versions of core.jar, where

// the MACOSX constant would instead read as the LINUX constant.

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

static protected File processingRoot;

/**

* Get reference to a file adjacent to the executable on Windows and Linux,

* or inside Contents/Resources/Java on Mac OS X. This will return the local

* JRE location, *whether or not it is the active JRE*.

* @deprecated start using the build in JAR Resources system instead.

@Deprecated

static public File getContentFile(String name) {

if (processingRoot == null) {

var resourcesDir = System.getProperty("compose.application.resources.dir");

if(resourcesDir != null) {

var directory = new File(resourcesDir);

if(directory.exists()){

return new File(directory, name);

}

// Get the path to the .jar file that contains Base.class

URL pathURL =

Base.class.getProtectionDomain().getCodeSource().getLocation();

// Decode URL

String decodedPath;

try {

decodedPath = pathURL.toURI().getSchemeSpecificPart();

} catch (URISyntaxException e) {

Messages.showError("Missing File",

"Could not access a required file:\n" +

"<b>" + name + "</b>\n" +

"You may need to reinstall Processing.", e);

return null;

}

if (decodedPath.contains("/app/bin")) { // This means we're in Eclipse

final File build = new File(decodedPath, "../../build").getAbsoluteFile();

if (Platform.isMacOS()) {

processingRoot = new File(build, "macos/work/Processing.app/Contents/Java");

} else if (Platform.isWindows()) {

processingRoot = new File(build, "windows/work");

} else if (Platform.isLinux()) {

processingRoot = new File(build, "linux/work");

}

} else {

// The .jar file will be in the lib folder

File jarFolder = new File(decodedPath).getParentFile();

if (jarFolder.getName().equals("lib")) {

// The main Processing installation directory.

// This works for Windows, Linux, and Apple's Java 6 on OS X.

processingRoot = jarFolder.getParentFile();

} else if (Platform.isMacOS()) {

// This works for Java 8 on OS X. We don't have things inside a 'lib'

// folder on OS X. Adding it caused more problems than it was worth.

processingRoot = jarFolder;

}

if (processingRoot == null || !processingRoot.exists()) {

// Try working directory instead (user.dir, different from user.home)

System.err.println("Could not find lib folder via " +

jarFolder.getAbsolutePath() +

", switching to user.dir");

processingRoot = new File(""); // resolves to "user.dir"

}

return new File(processingRoot, name);

}

static public File getJavaHome() {

// Get the build in JDK location from the Jetpack Compose resources

var resourcesDir = System.getProperty("compose.application.resources.dir");

if(resourcesDir != null) {

var jdkFolder = new File(resourcesDir,"jdk");

if(jdkFolder.exists()){

return jdkFolder;

}

// If the JDK is set in the environment, use that.

var home = System.getProperty("java.home");

if(home != null){

return new File(home);

}

// Otherwise try to use the Ant embedded JDK.

if (Platform.isMacOS()) {

//return "Contents/PlugIns/jdk1.7.0_40.jdk/Contents/Home/jre/bin/java";

File[] plugins = getContentFile("../PlugIns").listFiles((dir, name) -> dir.isDirectory() &&

name.contains("jdk") && !name.startsWith("."));

return new File(plugins[0], "Contents/Home");

}

// On all other platforms, it's the 'java' folder adjacent to Processing

return getContentFile("java");

}

/** Get the path to the embedded Java executable. */

static public String getJavaPath() {

String javaPath = "bin/java" + (Platform.isWindows() ? ".exe" : "");

File javaFile = new File(getJavaHome(), javaPath);

try {

return javaFile.getCanonicalPath();

} catch (IOException e) {

return javaFile.getAbsolutePath();

}

static protected File getProcessingApp() {

File appFile;

if (Platform.isMacOS()) {

// walks up from Processing.app/Contents/Java to Processing.app

// (or whatever the user has renamed it to)

appFile = getContentFile("../..");

} else if (Platform.isWindows()) {

appFile = getContentFile("processing.exe");

} else {

appFile = getContentFile("processing");

}

try {

return appFile.getCanonicalFile();

} catch (Exception e) {

e.printStackTrace();

}

return null;

}

// Not great, shows the crusty Duke icon in the dock.

// Better to just re-launch the .exe instead.

// Hacked up from <a href="https://lewisleo.blogspot.com/2012/08/programmatically-restart-java.html">this code</a>.

static private void restartJavaApplication() {

// System.out.println("java path: " + javaPath);

// String java = System.getProperty("java.home") + "/bin/java";

// Tested and working with JDK 17 [fry 230122]

// System.out.println("sun java command: " + System.getProperty("sun.java.command"));

// System.out.println("class path: " + System.getProperty("java.class.path"));

List<String> cmd = new ArrayList<>();

// Add the path to the current java binary

cmd.add(getJavaPath());

// Get all the VM arguments that are currently in use

List<String> vmArguments =

ManagementFactory.getRuntimeMXBean().getInputArguments();

// Add all the arguments we're using now, except for -agentlib

for (String arg : vmArguments) {

if (!arg.contains("-agentlib")) {

cmd.add(arg);

}

// Does not work for .jar files, should this be used in a more general way

cmd.add("-cp");

cmd.add(System.getProperty("java.class.path"));

// Finally, add the class that was used to launch the app

// (in our case, this is the Processing splash screen)

String javaCommand = System.getProperty("sun.java.command");

String[] splitCommand = PApplet.split(javaCommand, ' ');

// if (splitCommand.length > 1) {

// try {

// Util.saveFile(javaCommand, PApplet.desktopFile("arrrrrghs.txt"));

// } catch (IOException e) {

// throw new RuntimeException(e);

// }

cmd.add(splitCommand[0]); // should be the main class name

ProcessBuilder builder = new ProcessBuilder(cmd);

StringBuffer vmArgsOneLine = new StringBuffer();

for (String arg : vmArguments) {

// if it's the agent argument : we ignore it otherwise the

// address of the old application and the new one will be in conflict

if (!arg.contains("-agentlib")) {

vmArgsOneLine.append(arg);

vmArgsOneLine.append(" ");

}

// init the command to execute, add the vm args

final StringBuffer cmd = new StringBuffer("\"" + java + "\" " + vmArgsOneLine);

// program main and program arguments (be careful a sun property. might not be supported by all JVM)

String[] mainCommand = System.getProperty("sun.java.command").split(" ");

// program main is a jar

if (mainCommand[0].endsWith(".jar")) {

// if it's a jar, add -jar mainJar

cmd.append("-jar " + new File(mainCommand[0]).getPath());

} else {

// else it's a .class, add the classpath and mainClass

cmd.append("-cp \"" + System.getProperty("java.class.path") + "\" " + mainCommand[0]);

}

// finally add program arguments

for (int i = 1; i < mainCommand.length; i++) {

cmd.append(" ");

cmd.append(mainCommand[i]);

}

// execute the command in a shutdown hook, to be sure that all the

// resources have been disposed before restarting the application

Runtime.getRuntime().addShutdownHook(new Thread(() -> {

try {

// System.out.println(new StringList(cmd).join(" "));

// Runtime.getRuntime().exec(cmd.toArray(new String[0]));

builder.start();

} catch (IOException e) {

e.printStackTrace();

}

}));

System.exit(0);

}

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

/**

* Delete a file or directory in a platform-specific manner. Removes a File

* object (a file or directory) from the system by placing it in the Trash

* or Recycle Bin (if available) or simply deleting it (if not).

* Also tries to find a suitable Trash location on Linux.

* <p>

* When the file/folder is on another file system, it may simply be removed

* immediately, without additional warning. So only use this if you want to,

* you know, "delete" the subject in question.

* @param file the victim (a directory or individual file)

* @return true if all ends well

* @throws IOException what went wrong

static public boolean deleteFile(File file) throws IOException {

try {

FileUtils fu = FileUtils.getInstance();

if (fu.hasTrash()) {

fu.moveToTrash(file);

return true;

}

} catch (Throwable t) {

// On macOS getting NoClassDefFoundError inside JNA on Big Sur.

// (Can't find com.sun.jna.platform.mac.MacFileUtils$FileManager)

// Just adding a catch-all here so that it does the fall-through below.

System.err.println(t.getMessage());

}

if (file.isDirectory()) {

Util.removeDir(file);

return true;

} else {

return file.delete();

}

// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

/**

* These methods were refactored to use the Preferences system instead of

* actual environment variables, since modifying environment variables at runtime

* proved problematic. This approach provides similar functionality

* while being compatible with various platforms and execution environments.

* This abstraction maintains a consistent API for environment-like variable storage

* while implementing it differently under the hood to work around runtime limitations.

static public void setenv(String variable, String value) {

Preferences.set(variable, value);

}

static public String getenv(String variable) {

return Preferences.get(variable);

}

static public int unsetenv(String variable) {

throw new RuntimeException("unsetenv() not yet implemented");

}

processing4/app/src/processing/app/Platform.java at main · processing/processing4 · GitHub

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