1 files changed, 127 insertions, 0 deletions
diff --git a/src/java/com/jogamp/common/util/VersionUtil.java b/src/java/com/jogamp/common/util/VersionUtil.java
new file mode 100644
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+++ b/src/java/com/jogamp/common/util/VersionUtil.java
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+/**
+ * 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 com.jogamp.common.os.Platform;
+
+import java.io.IOException;
+import java.net.JarURLConnection;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.Iterator;
+import java.util.Set;
+import java.util.jar.Attributes;
+import java.util.jar.Manifest;
+
+public class VersionUtil {
+
+    public static StringBuffer getInfo(ClassLoader cl, String prefix, String pkgName, String clazzName, StringBuffer sb) {
+
+        if(null==sb) {
+            sb = new StringBuffer();
+        }
+
+        sb.append(Platform.getNewline());
+        sb.append("-----------------------------------------------------------------------------------------------------");
+        sb.append(Platform.getNewline());
+        getPlatformInfo(sb, prefix);
+        sb.append(Platform.getNewline());
+        getManifestInfo(cl, prefix, pkgName, clazzName, sb);
+        sb.append("-----------------------------------------------------------------------------------------------------");
+        sb.append(Platform.getNewline());
+
+        return sb;
+    }
+
+    public static StringBuffer getPlatformInfo(StringBuffer sb, String prefix) {
+        if(null==sb) {
+            sb = new StringBuffer();
+        }
+
+        sb.append(prefix+" Platform: " + Platform.getOS() + " " + Platform.getOSVersion() + " (os), " + Platform.getArch() + " (arch)");
+        sb.append(Platform.getNewline());
+        sb.append(prefix+" Platform: littleEndian " + Platform.isLittleEndian() + ", 32Bit "+Platform.is32Bit() + ", a-ptr bit-size "+Platform.getPointerSizeInBits());
+        sb.append(Platform.getNewline());
+        sb.append(prefix+" Platform: Java " + Platform.getJavaVersion()+", "
+            +Platform.getJavaVendor()+", "+Platform.getJavaVendorURL()+", is JavaSE: "+Platform.isJavaSE());
+        sb.append(Platform.getNewline());
+
+        return sb;
+    }
+
+    public static Manifest getManifest(ClassLoader cl, String fullClazzName) {
+        String fullClazzFileName = "/" + fullClazzName.replace('.', '/') + ".class" ;
+        URL url = cl.getClass().getResource(fullClazzFileName);
+        Manifest mf = null;
+        try {
+            URLConnection urlConn = url.openConnection();
+            if(urlConn instanceof JarURLConnection) {
+                mf = ((JarURLConnection)urlConn).getManifest();
+            }
+        } catch (IOException ex) { }
+        return mf;
+    }
+
+    public static StringBuffer getManifestInfo(ClassLoader cl, String prefix,
+                                               String pkgName, String className, StringBuffer sb) {
+        if(null==sb) {
+            sb = new StringBuffer();
+        }
+
+        Manifest mf = getManifest(cl, pkgName + "." + className);
+        
+        if(null==mf) { 
+            sb.append("Manifest for <");
+            sb.append(pkgName);
+            sb.append("> not available");
+            sb.append(Platform.getNewline());
+            return sb;
+        }
+
+        sb.append(prefix);
+        sb.append(" package ");
+        sb.append(pkgName);
+        sb.append(Platform.getNewline());
+
+        Attributes attr = mf.getMainAttributes();
+        Set keys = attr.keySet();
+        for(Iterator iter=keys.iterator(); iter.hasNext(); ) {
+            Attributes.Name key = (Attributes.Name) iter.next();
+            String val = attr.getValue(key);
+            sb.append(prefix);
+            sb.append(" ");
+            sb.append(key);
+            sb.append(" = ");
+            sb.append(val);
+            sb.append(Platform.getNewline());
+        }
+        return sb;
+    }
+}
+