| public static javax.imageio.metadata.IIOMetadataFormat | instantiateMetadataFormat(java.lang.String formatName, boolean standardFormatSupported, java.lang.String nativeMetadataFormatName, java.lang.String nativeMetadataFormatClassName, java.lang.String[] extraMetadataFormatNames, java.lang.String[] extraMetadataFormatClassNames)
if (formatName == null) {
throw new IllegalArgumentException("formatName == null!");
}
if (formatName.equals(IIOMetadataFormatImpl.standardMetadataFormatName)) {
if (standardFormatSupported) {
return IIOMetadataFormatImpl.getStandardFormatInstance();
}
}
String className = null;
if (formatName.equals(nativeMetadataFormatName)) {
className = nativeMetadataFormatClassName;
} else if (extraMetadataFormatNames != null) {
for (int i = 0; i < extraMetadataFormatNames.length; i++) {
if (formatName.equals(extraMetadataFormatNames[i])) {
className = extraMetadataFormatClassNames[i];
break;
}
}
}
if (className == null) {
throw new IllegalArgumentException("Unsupported format name");
}
// Get the context class loader and try to use it first
ClassLoader contextClassloader = AccessController.doPrivileged(
new PrivilegedAction<ClassLoader>() {
public ClassLoader run() {
return Thread.currentThread().getContextClassLoader();
}
});
Class cls;
try {
cls = Class.forName(className, true, contextClassloader);
} catch (ClassNotFoundException e) {
try {
// Use current class loader
cls = Class.forName(className);
} catch (ClassNotFoundException e1) {
throw new IllegalStateException ("Can't obtain format");
}
}
try {
//???AWT:
//Method getInstance = cls.getMethod("getInstance");
//return (IIOMetadataFormat) getInstance.invoke(null);
return null;
} catch (Exception e) {
IllegalStateException e1 = new IllegalStateException("Can't obtain format");
e1.initCause(e); // Add some details to the message
throw e1;
}
|
