javaclass

Annotated runclass.py

168:1f3fa26a27e2
2005-02-13 Paul Boddie Attempted to simplify the class loading mechanism by adding instance-level state to remember which classes have been imported so far. Only at the top level will such classes be created and initialised. Added a convenience method to ClassTranslator.
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#!/usr/bin/env python
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"A program to run Java class files."
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import javaclass.classhook
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import java.lang
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# NOTE: Simple __this__ package loader to potentially avoid repeated import
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# NOTE: issues exposed by test.py.
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def load_classes(class_names):
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    "Load the classes with the given 'class_names'."
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    module = __import__("__this__", globals(), locals(), class_names)
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    objs = []
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    for class_name in class_names:
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        objs.append(getattr(module, class_name))
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    return objs
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# The more general class loader.
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def load_class(class_name):
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    "Load the class with the given 'class_name'."
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    class_name_parts = class_name.split(".")
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    if len(class_name_parts) == 1:
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        module = __import__("__this__", globals(), locals(), [class_name])
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        obj = getattr(module, class_name)
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    else:
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        class_module = ".".join(class_name_parts[:-1])
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        obj = __import__(class_module, globals(), locals())
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        for part in class_name_parts[1:]:
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            obj = getattr(obj, part)
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    return obj
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def run_class(cls, args):
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    cls.main([java.lang.String(arg) for arg in args])
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if __name__ == "__main__":
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    import sys
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    cls = load_class(sys.argv[1])
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    run_class(cls, sys.argv[2:])
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