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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.URL;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.Set;
import java.util.jar.Attributes;
import java.util.jar.Manifest;
public class VersionUtil {
public static final String SEPERATOR = "-----------------------------------------------------------------------------------------------------";
/**
* Appends environment information like OS, JVM and CPU architecture properties to the StringBuffer.
*/
public static StringBuffer getPlatformInfo(StringBuffer sb) {
if(null == sb) {
sb = new StringBuffer();
}
sb.append(SEPERATOR).append(Platform.getNewline());
// environment
sb.append("Platform: ").append(Platform.getOS()).append(' ').append(Platform.getOSVersion()).append(" (os), ");
sb.append(Platform.getArch()).append(" (arch) ").append(Runtime.getRuntime().availableProcessors()).append(" cores");
sb.append(Platform.getNewline());
// arch
sb.append("Platform: littleEndian ").append(Platform.isLittleEndian()).append(", 32Bit ");
sb.append(Platform.is32Bit()).append(", a-ptr bit-size ").append(Platform.getPointerSizeInBits());
sb.append(Platform.getNewline());
// JVM/JRE
sb.append("Platform: Java ").append(Platform.getJavaVersion()).append(", ").append(System.getProperty("java.vm.name")).append(", ");
sb.append(Platform.getJavaVendor()).append(", ").append(Platform.getJavaVendorURL()).append(", is JavaSE: ").append(Platform.isJavaSE());
sb.append(Platform.getNewline()).append(SEPERATOR);
return sb;
}
/**
* Prints platform info.
* @see #getPlatformInfo(java.lang.StringBuffer)
*/
public static String getPlatformInfo() {
return getPlatformInfo(null).toString();
}
/**
* Returns the manifest of the jar which contains the specified extension.
* The provided ClassLoader is used for resource loading.
* @param cl A ClassLoader which should find the manifest.
* @param extension The value of the 'Extension-Name' jar-manifest attribute; used to identify the manifest.
* @return the requested manifest or null when not found.
*/
public static Manifest getManifest(ClassLoader cl, String extension) {
try {
Enumeration resources = cl.getResources("META-INF/MANIFEST.MF");
while (resources.hasMoreElements()) {
Manifest manifest = new Manifest(((URL)resources.nextElement()).openStream());
Attributes attributes = manifest.getMainAttributes();
if(attributes != null && extension.equals(attributes.getValue(Attributes.Name.EXTENSION_NAME))) {
return manifest;
}
}
} catch (IOException ex) {
throw new RuntimeException("Unable to read manifest.", ex);
}
return null;
}
public static StringBuffer getFullManifestInfo(Manifest mf, StringBuffer sb) {
if(null==mf) {
return sb;
}
if(null==sb) {
sb = new StringBuffer();
}
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(" ");
sb.append(key);
sb.append(" = ");
sb.append(val);
sb.append(Platform.getNewline());
}
return sb;
}
}
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