// Copyright (c) Corporation for National Research Initiatives
package org.python.core;
import java.io.ByteArrayOutputStream;
import java.util.Vector;
import org.python.compiler.AdapterMaker;
import org.python.compiler.JavaMaker;
class MakeProxies {
private static Class makeClass(Class referent, Vector secondary, String name, ByteArrayOutputStream bytes) {
Vector referents = null;
if (secondary != null) {
if (referent != null) {
secondary.insertElementAt(referent, 0);
}
referents = secondary;
} else {
if (referent != null) {
referents = new Vector();
referents.addElement(referent);
}
}
return BytecodeLoader.makeClass(name, referents, bytes.toByteArray());
}
public static Class makeAdapter(Class c) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
String name;
try {
name = AdapterMaker.makeAdapter(c, bytes);
} catch (Exception exc) {
throw Py.JavaError(exc);
}
Py.saveClassFile(name, bytes);
Class pc = makeClass(c, null, name, bytes);
return pc;
}
private static final String proxyPrefix = "org.python.proxies.";
private static int proxyNumber = 0;
public static synchronized Class makeProxy(Class superclass, Vector vinterfaces, String className,
String proxyName, PyObject dict) {
Class[] interfaces = new Class[vinterfaces.size()];
for (int i = 0; i < vinterfaces.size(); i++) {
interfaces[i] = (Class) vinterfaces.elementAt(i);
}
String fullProxyName = proxyPrefix + proxyName + "$" + proxyNumber++;
String pythonModuleName;
PyObject mn = dict.__finditem__("__module__");
if (mn == null) {
pythonModuleName = "foo";
} else {
pythonModuleName = (String) mn.__tojava__(String.class);
}
JavaMaker jm = new JavaMaker(superclass, interfaces, className, pythonModuleName, fullProxyName, dict);
try {
jm.build();
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
jm.classfile.write(bytes);
Py.saveClassFile(fullProxyName, bytes);
return makeClass(superclass, vinterfaces, jm.myClass, bytes);
} catch (Exception exc) {
throw Py.JavaError(exc);
}
}
}