com.sun.faces.renderkit.ApplicationObjectInputStream Maven / Gradle / Ivy
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package com.sun.faces.renderkit;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectStreamClass;
import java.util.HashMap;
import java.util.Map;
/**
* An ObjectInputStream that can deserialize objects relative to the current
* application's class loader. In particular, this class works around
* deserialization problems when the JSF JARs are shared (i.e. the
* classloader has no access to application objects).
*/
public class ApplicationObjectInputStream extends ObjectInputStream {
// Taken from ObjectInputStream to resolve primitive types
private static final Map> PRIMITIVE_CLASSES =
new HashMap>(9, 1.0F);
static {
PRIMITIVE_CLASSES.put("boolean", boolean.class);
PRIMITIVE_CLASSES.put("byte", byte.class);
PRIMITIVE_CLASSES.put("char", char.class);
PRIMITIVE_CLASSES.put("short", short.class);
PRIMITIVE_CLASSES.put("int", int.class);
PRIMITIVE_CLASSES.put("long", long.class);
PRIMITIVE_CLASSES.put("float", float.class);
PRIMITIVE_CLASSES.put("double", double.class);
PRIMITIVE_CLASSES.put("void", void.class);
}
public ApplicationObjectInputStream() throws IOException,
SecurityException {
super();
}
public ApplicationObjectInputStream(InputStream in) throws IOException {
super(in);
}
protected Class resolveClass(ObjectStreamClass desc)
throws IOException, ClassNotFoundException {
// When the container is about to call code associated with a
// particular web application, it sets the context classloader to the
// web app class loader. We make use of that here to locate any classes
// that the UIComponent may hold references to. This won't cause a
// problem to locate classes in the system class loader because
// class loaders can look up the chain and not down the chain.
String name = desc.getName();
try {
return Class.forName(name,
true,
Thread.currentThread().getContextClassLoader());
} catch (ClassNotFoundException cnfe) {
Class c = PRIMITIVE_CLASSES.get(name);
if (c != null) {
return c;
}
throw cnfe;
}
}
}