new pdf-over-install helper added

1 files changed, 133 insertions, 0 deletions

diff --git a/pdf-over-install-helper/src/main/java/at/asit/helper/Main.java b/pdf-over-install-helper/src/main/java/at/asit/helper/Main.java
new file mode 100644
index 00000000..6fd5bdbb
--- /dev/null
+++ b/pdf-over-install-helper/src/main/java/at/asit/helper/Main.java
@@ -0,0 +1,133 @@
+package at.asit.helper;
+
+import java.io.File;
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+
+import org.apache.commons.io.FileUtils;
+
+
+
+
+/***
+ * 
+ * @author aabraham
+ * 
+ * @version 1.0.0 
+ *
+ *	The created jar is used as helper library when installing pdf-over. 
+ *	Basically, the helper determines the java version used including architecture and 
+ *	appends afterwards the right swt library since this swt is platform dependend. 
+ *
+ */
+public class Main {
+	
+	public static void main(String[] args) {
+		
+		System.out.println("start post install task");
+		
+		copyLib();
+
+	}
+	
+
+	public static int getArchBits() {
+		String arch = System.getProperty("os.arch");
+		return arch.contains("64") ? 64 : 32;
+	}
+
+	public static String getSwtJarName() throws SWTLoadFailedException {
+		String os = System.getProperty("os.name").toLowerCase();
+		if (os.contains("win"))
+			os = "windows";
+		else if (os.contains("mac"))
+			os = "mac";
+		else if (os.contains("linux") || os.contains("nix"))
+			os = "linux";
+		else {
+			throw new SWTLoadFailedException("Unknown OS: " + os);
+		}
+		return "swt-" + os + "-" + getArchBits() + ".jar";
+	}
+
+	public static String getSwtJarPath() {
+		String path = "";
+		try {
+			path = URLDecoder.decode(Main.class.getProtectionDomain().getCodeSource().getLocation().getPath(), "UTF-8");
+			int idx = path.lastIndexOf('/');
+			idx = path.lastIndexOf('/', idx - 1);
+			path = path.substring(0, idx + 1);
+		} catch (UnsupportedEncodingException e) {
+			// Ignore
+			System.err.println("Unsuported Encoding Exception " + e.getMessage());
+		}
+		return path + "lib-swt/";
+	}
+
+	private static class SWTLoadFailedException extends Exception {
+		private static final long serialVersionUID = 1L;
+
+		SWTLoadFailedException(String msg) {
+			super(msg);
+		}
+	}
+	
+	
+	private static String getSwtTargetLibName() throws SWTLoadFailedException {
+		
+		String os = System.getProperty("os.name").toLowerCase();
+		System.out.println("OS " + os + " detected!");
+		String swtTargetLibName; 
+		
+		if (os.contains("win")) {
+				swtTargetLibName = "org.eclipse.swt.win32.win32.x86-4.3.2.jar";
+			}
+		else if (os.contains("mac")) {
+			swtTargetLibName = "org.eclipse.swt.cocoa.macosx-4.3.2.jar";
+		}
+		else if (os.contains("linux") || os.contains("nix")) {
+			swtTargetLibName = "org.eclipse.swt.gtk.linux.x86-4.3.2.jar";
+		}
+		else {
+			throw new SWTLoadFailedException("Unknown OS: " + os);
+		}
+		return swtTargetLibName;
+		
+		
+	}
+	
+	
+	private static void copyLib() {
+		try {
+			String swtLibPath = Main.getSwtJarPath() + Main.getSwtJarName();
+			File swtLib = new File(swtLibPath);
+			if (!swtLib.isFile()) {
+
+				System.err.println("not found "); 
+				throw new SWTLoadFailedException("Library " + swtLibPath + " not found");
+			}
+			
+			String newPath = swtLibPath.replace("lib-swt", "lib"); 
+			newPath = newPath.replace(Main.getSwtJarName(), getSwtTargetLibName());
+			File newFile = new File(newPath);
+			System.out.println("Source Lib " + swtLibPath.toString()); 
+			System.out.println("Target Lib " + newFile.toString()); 
+			FileUtils.copyFile(swtLib, newFile);
+			
+			if (!newFile.isFile()) {
+				System.err.println("not found "); 
+				throw new SWTLoadFailedException("Library " + swtLibPath + " not found");
+			}
+				
+			System.out.println("success "); 
+			return;
+		
+	
+		} catch(Exception e){
+			e.printStackTrace();
+		}
+
+	}
+
+
+}