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package com.jogamp.common.os;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;
import com.jogamp.common.util.ReflectionUtil;
public class AndroidVersion {
public static final boolean isAvailable;
/** All SDK version map, where SDK_INT is the key to the current running version */
public static final Map<Integer, String> VERSION_CODES;
/** Development codename, or the string "REL" for official release */
public static final String CODENAME;
/** internal build value used by the underlying source control. */
public static final String INCREMENTAL;
/** official build version string */
public static final String RELEASE;
/** SDK Version number, key to VERSION_CODES */
public static final int SDK_INT;
/** SDK Version string */
public static final String SDK_NAME;
static final String androidBuildVersion = "android.os.Build$VERSION";
static final String androidBuildVersionCodes = "android.os.Build$VERSION_CODES";
static {
final ClassLoader cl = AndroidVersion.class.getClassLoader();
Class abvClass = null;
Object abvObject= null;
Class abvcClass = null;
Object abvcObject= null;
try {
abvClass = ReflectionUtil.getClass(androidBuildVersion, true, cl);
abvObject = abvClass.newInstance();
abvcClass = ReflectionUtil.getClass(androidBuildVersionCodes, true, cl);
abvcObject = abvcClass.newInstance();
} catch (Exception e) { /* n/a */ }
isAvailable = null != abvObject ;
if(isAvailable) {
CODENAME = getString(abvClass, abvObject, "CODENAME");
INCREMENTAL = getString(abvClass, abvObject, "INCREMENTAL");
RELEASE = getString(abvClass, abvObject, "RELEASE");
SDK_INT = getInt(abvClass, abvObject, "SDK_INT");
VERSION_CODES = getVersionCodes(abvcClass, abvcObject);
String sdk_name = VERSION_CODES.get(new Integer(SDK_INT));
SDK_NAME = ( null != sdk_name ) ? sdk_name : "SDK_"+SDK_INT ;
} else {
CODENAME = null;
INCREMENTAL = null;
RELEASE = null;
SDK_INT = -1;
VERSION_CODES = new HashMap<Integer, String>();
SDK_NAME = null;
}
}
private static final Map<Integer, String> getVersionCodes(Class cls, Object obj) {
HashMap<Integer, String> map = new HashMap<Integer, String>();
Field[] fields = cls.getFields();
for(int i=0; i<fields.length; i++) {
try {
final int version = fields[i].getInt(obj);
final String version_name = fields[i].getName();
// System.err.println(i+": "+version+": "+version_name);
map.put(new Integer(version), version_name);
} catch (Exception e) { e.printStackTrace(); /* n/a */ }
}
return map;
}
private static final String getString(Class cls, Object obj, String name) {
try {
Field f = cls.getField(name);
return (String) f.get(obj);
} catch (Exception e) { e.printStackTrace(); /* n/a */ }
return null;
}
private static final int getInt(Class cls, Object obj, String name) {
try {
Field f = cls.getField(name);
return f.getInt(obj);
} catch (Exception e) { e.printStackTrace(); /* n/a */ }
return -1;
}
// android.os.Build.VERSION
}
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