| /******************************************************************************* |
| * Copyright (c) 2000, 2013 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.internal; |
| |
| import java.io.*; |
| import java.net.*; |
| import java.util.jar.*; |
| |
| public class Library { |
| |
| /* SWT Version - Mmmm (M=major, mmm=minor) */ |
| |
| /** |
| * SWT Major version number (must be >= 0) |
| */ |
| static int MAJOR_VERSION = 4; |
| |
| /** |
| * SWT Minor version number (must be in the range 0..999) |
| */ |
| static int MINOR_VERSION = 731; |
| |
| /** |
| * SWT revision number (must be >= 0) |
| */ |
| static int REVISION = 0; |
| |
| /** |
| * The JAVA and SWT versions |
| */ |
| public static final int JAVA_VERSION, SWT_VERSION; |
| |
| static final String SEPARATOR; |
| static final String DELIMITER; |
| |
| /* 64-bit support */ |
| static final boolean IS_64 = longConst() == (long /*int*/)longConst(); |
| static final String SUFFIX_64 = "-64"; //$NON-NLS-1$ |
| static final String SWT_LIB_DIR; |
| |
| static { |
| DELIMITER = System.getProperty("line.separator"); //$NON-NLS-1$ |
| SEPARATOR = System.getProperty("file.separator"); //$NON-NLS-1$ |
| SWT_LIB_DIR = ".swt" + SEPARATOR + "lib" + SEPARATOR + os() + SEPARATOR + arch(); //$NON-NLS-1$ $NON-NLS-2$ |
| JAVA_VERSION = parseVersion(System.getProperty("java.version")); //$NON-NLS-1$ |
| SWT_VERSION = SWT_VERSION(MAJOR_VERSION, MINOR_VERSION); |
| } |
| |
| static String arch() { |
| String osArch = System.getProperty("os.arch"); //$NON-NLS-1$ |
| if (osArch.equals ("i386") || osArch.equals ("i686")) return "x86"; //$NON-NLS-1$ $NON-NLS-2$ $NON-NLS-3$ |
| if (osArch.equals ("amd64")) return "x86_64"; //$NON-NLS-1$ $NON-NLS-2$ |
| if (osArch.equals ("IA64N")) return "ia64_32"; //$NON-NLS-1$ $NON-NLS-2$ |
| if (osArch.equals ("IA64W")) return "ia64"; //$NON-NLS-1$ $NON-NLS-2$ |
| return osArch; |
| } |
| |
| static String os() { |
| String osName = System.getProperty("os.name"); //$NON-NLS-1$ |
| if (osName.equals ("Linux")) return "linux"; //$NON-NLS-1$ $NON-NLS-2$ |
| if (osName.equals ("AIX")) return "aix"; //$NON-NLS-1$ $NON-NLS-2$ |
| if (osName.equals ("Solaris") || osName.equals ("SunOS")) return "solaris"; //$NON-NLS-1$ $NON-NLS-2$ $NON-NLS-3$ |
| if (osName.equals ("HP-UX")) return "hpux"; //$NON-NLS-1$ $NON-NLS-2$ |
| if (osName.equals ("Mac OS X")) return "macosx"; //$NON-NLS-1$ $NON-NLS-2$ |
| if (osName.startsWith ("Win")) return "win32"; //$NON-NLS-1$ $NON-NLS-2$ |
| return osName; |
| } |
| |
| static void chmod(String permision, String path) { |
| if (Platform.PLATFORM.equals ("win32")) return; //$NON-NLS-1$ |
| try { |
| Runtime.getRuntime ().exec (new String []{"chmod", permision, path}).waitFor(); //$NON-NLS-1$ |
| } catch (Throwable e) {} |
| } |
| |
| /* Use method instead of in-lined constants to avoid compiler warnings */ |
| static long longConst() { |
| return 0x1FFFFFFFFL; |
| } |
| |
| static int parseVersion(String version) { |
| if (version == null) return 0; |
| int major = 0, minor = 0, micro = 0; |
| int length = version.length(), index = 0, start = 0; |
| while (index < length && Character.isDigit(version.charAt(index))) index++; |
| try { |
| if (start < length) major = Integer.parseInt(version.substring(start, index)); |
| } catch (NumberFormatException e) {} |
| start = ++index; |
| while (index < length && Character.isDigit(version.charAt(index))) index++; |
| try { |
| if (start < length) minor = Integer.parseInt(version.substring(start, index)); |
| } catch (NumberFormatException e) {} |
| start = ++index; |
| while (index < length && Character.isDigit(version.charAt(index))) index++; |
| try { |
| if (start < length) micro = Integer.parseInt(version.substring(start, index)); |
| } catch (NumberFormatException e) {} |
| return JAVA_VERSION(major, minor, micro); |
| } |
| |
| /** |
| * Returns the Java version number as an integer. |
| * |
| * @param major |
| * @param minor |
| * @param micro |
| * @return the version |
| */ |
| public static int JAVA_VERSION (int major, int minor, int micro) { |
| return (major << 16) + (minor << 8) + micro; |
| } |
| |
| /** |
| * Returns the SWT version number as an integer. |
| * |
| * @param major |
| * @param minor |
| * @return the version |
| */ |
| public static int SWT_VERSION (int major, int minor) { |
| return major * 1000 + minor; |
| } |
| |
| static boolean extract (String fileName, String mappedName, StringBuffer message) { |
| FileOutputStream os = null; |
| InputStream is = null; |
| File file = new File(fileName); |
| boolean extracted = false; |
| try { |
| if (!file.exists ()) { |
| is = Library.class.getResourceAsStream ("/" + mappedName); //$NON-NLS-1$ |
| if (is != null) { |
| extracted = true; |
| int read; |
| byte [] buffer = new byte [4096]; |
| os = new FileOutputStream (fileName); |
| while ((read = is.read (buffer)) != -1) { |
| os.write(buffer, 0, read); |
| } |
| os.close (); |
| is.close (); |
| chmod ("755", fileName); |
| if (load (fileName, message)) return true; |
| } |
| } |
| } catch (Throwable e) { |
| try { |
| if (os != null) os.close (); |
| } catch (IOException e1) {} |
| try { |
| if (is != null) is.close (); |
| } catch (IOException e1) {} |
| if (extracted && file.exists ()) file.delete (); |
| } |
| return false; |
| } |
| |
| static boolean isLoadable () { |
| URL url = Platform.class.getClassLoader ().getResource ("org/eclipse/swt/internal/Library.class"); //$NON-NLS-1$ |
| if (!url.getProtocol ().equals ("jar")) { //$NON-NLS-1$ |
| /* SWT is presumably running in a development environment */ |
| return true; |
| } |
| |
| Attributes attributes = null; |
| try { |
| URLConnection connection = url.openConnection(); |
| if (!(connection instanceof JarURLConnection)) { |
| /* should never happen for a "jar:" url */ |
| return false; |
| } |
| JarURLConnection jc = (JarURLConnection) connection; |
| attributes = jc.getMainAttributes(); |
| } catch (IOException e) { |
| /* should never happen for a valid SWT jar with the expected manifest values */ |
| return false; |
| } |
| |
| String os = os (); |
| String arch = arch (); |
| String manifestOS = attributes.getValue ("SWT-OS"); //$NON-NLS-1$ |
| String manifestArch = attributes.getValue ("SWT-Arch"); //$NON-NLS-1$ |
| if (arch.equals (manifestArch) && os.equals (manifestOS)) { |
| return true; |
| } |
| |
| /* |
| * Mac has a special case since SWT's 32-bit libraries on Mac contain natives |
| * for both the x86 and PPC architectures. For this reason SWT's manifest file |
| * for 32-bit Mac does not specify a value for SWT-Arch. |
| */ |
| if (os.equals ("macosx") && os.equals (manifestOS)) { //$NON-NLS-1$ |
| return manifestArch.length () == 0 && (arch.equals ("ppc") || arch.equals ("x86")); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| return false; |
| } |
| |
| static boolean load (String libName, StringBuffer message) { |
| try { |
| if (libName.indexOf (SEPARATOR) != -1) { |
| System.load (libName); |
| } else { |
| System.loadLibrary (libName); |
| } |
| return true; |
| } catch (UnsatisfiedLinkError e) { |
| if (message.length() == 0) message.append(DELIMITER); |
| message.append('\t'); |
| message.append(e.getMessage()); |
| message.append(DELIMITER); |
| } |
| return false; |
| } |
| |
| /** |
| * Loads the shared library that matches the version of the |
| * Java code which is currently running. SWT shared libraries |
| * follow an encoding scheme where the major, minor and revision |
| * numbers are embedded in the library name and this along with |
| * <code>name</code> is used to load the library. If this fails, |
| * <code>name</code> is used in another attempt to load the library, |
| * this time ignoring the SWT version encoding scheme. |
| * |
| * @param name the name of the library to load |
| */ |
| public static void loadLibrary (String name) { |
| loadLibrary (name, true); |
| } |
| |
| /** |
| * Loads the shared library that matches the version of the |
| * Java code which is currently running. SWT shared libraries |
| * follow an encoding scheme where the major, minor and revision |
| * numbers are embedded in the library name and this along with |
| * <code>name</code> is used to load the library. If this fails, |
| * <code>name</code> is used in another attempt to load the library, |
| * this time ignoring the SWT version encoding scheme. |
| * |
| * @param name the name of the library to load |
| * @param mapName true if the name should be mapped, false otherwise |
| */ |
| public static void loadLibrary (String name, boolean mapName) { |
| String prop = System.getProperty ("sun.arch.data.model"); //$NON-NLS-1$ |
| if (prop == null) prop = System.getProperty ("com.ibm.vm.bitmode"); //$NON-NLS-1$ |
| if (prop != null) { |
| if ("32".equals (prop) && IS_64) { //$NON-NLS-1$ |
| throw new UnsatisfiedLinkError ("Cannot load 64-bit SWT libraries on 32-bit JVM"); //$NON-NLS-1$ |
| } |
| if ("64".equals (prop) && !IS_64) { //$NON-NLS-1$ |
| throw new UnsatisfiedLinkError ("Cannot load 32-bit SWT libraries on 64-bit JVM"); //$NON-NLS-1$ |
| } |
| } |
| |
| /* Compute the library name and mapped name */ |
| String libName1, libName2, mappedName1, mappedName2; |
| if (mapName) { |
| String version = System.getProperty ("swt.version"); //$NON-NLS-1$ |
| if (version == null) { |
| version = "" + MAJOR_VERSION; //$NON-NLS-1$ |
| /* Force 3 digits in minor version number */ |
| if (MINOR_VERSION < 10) { |
| version += "00"; //$NON-NLS-1$ |
| } else { |
| if (MINOR_VERSION < 100) version += "0"; //$NON-NLS-1$ |
| } |
| version += MINOR_VERSION; |
| /* No "r" until first revision */ |
| if (REVISION > 0) version += "r" + REVISION; //$NON-NLS-1$ |
| } |
| libName1 = name + "-" + Platform.PLATFORM + "-" + version; //$NON-NLS-1$ //$NON-NLS-2$ |
| libName2 = name + "-" + Platform.PLATFORM; //$NON-NLS-1$ |
| mappedName1 = mapLibraryName (libName1); |
| mappedName2 = mapLibraryName (libName2); |
| } else { |
| libName1 = libName2 = mappedName1 = mappedName2 = name; |
| } |
| |
| StringBuffer message = new StringBuffer(); |
| |
| /* Try loading library from swt library path */ |
| String path = System.getProperty ("swt.library.path"); //$NON-NLS-1$ |
| if (path != null) { |
| path = new File (path).getAbsolutePath (); |
| if (load (path + SEPARATOR + mappedName1, message)) return; |
| if (mapName && load (path + SEPARATOR + mappedName2, message)) return; |
| } |
| |
| /* Try loading library from java library path */ |
| if (load (libName1, message)) return; |
| if (mapName && load (libName2, message)) return; |
| |
| /* Try loading library from the tmp directory if swt library path is not specified */ |
| String fileName1 = mappedName1; |
| String fileName2 = mappedName2; |
| if (path == null) { |
| path = System.getProperty ("user.home"); //$NON-NLS-1$ |
| File dir = new File (path, SWT_LIB_DIR); |
| if ((dir.exists () && dir.isDirectory ()) || dir.mkdirs ()) { |
| path = dir.getAbsolutePath (); |
| } else { |
| /* fall back to using the home dir directory */ |
| if (IS_64) { |
| fileName1 = mapLibraryName (libName1 + SUFFIX_64); |
| fileName2 = mapLibraryName (libName2 + SUFFIX_64); |
| } |
| } |
| if (load (path + SEPARATOR + fileName1, message)) return; |
| if (mapName && load (path + SEPARATOR + fileName2, message)) return; |
| } |
| |
| /* Try extracting and loading library from jar */ |
| if (path != null) { |
| if (extract (path + SEPARATOR + fileName1, mappedName1, message)) return; |
| if (mapName && extract (path + SEPARATOR + fileName2, mappedName2, message)) return; |
| } |
| |
| /* Failed to find the library */ |
| throw new UnsatisfiedLinkError ("Could not load SWT library. Reasons: " + message.toString()); //$NON-NLS-1$ |
| } |
| |
| static String mapLibraryName (String libName) { |
| /* SWT libraries in the Macintosh use the extension .jnilib but the some VMs map to .dylib. */ |
| libName = System.mapLibraryName (libName); |
| String ext = ".dylib"; //$NON-NLS-1$ |
| if (libName.endsWith(ext)) { |
| libName = libName.substring(0, libName.length() - ext.length()) + ".jnilib"; //$NON-NLS-1$ |
| } |
| return libName; |
| } |
| |
| } |
