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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.xml.bind;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
/**
* Container components can take an instance of this class as a constructor argument,
* to get a new instance injected by the container framework. There is usually no
* need to create an instance with this class' constructor.
* <p>
* This factory is needed because the JAXBContext needs a user defined context path,
* which means that it cannot be created at the time the container creates its
* component graph.
*
* @author <a href="mailto:einarmr@yahoo-inc.com">Einar M R Rosenvinge</a>
* @author gjoranv
* @since 5.3
* @deprecated Do not use!
*/
@Deprecated
public class JAXBContextFactory {
public static final String FACTORY_CLASS = "com.sun.xml.internal.bind.v2.ContextFactory";
/**
* Returns a new JAXBContext for the context path defined by the given list of classes.
* @return A new JAXBContext.
* @param classes One class per package that contains schema derived classes and/or
* java to schema (JAXB-annotated) mapped classes
*/
public JAXBContext newInstance(Class<?>... classes) {
return newInstance(getContextPath(classes), classes[0].getClassLoader());
}
// TODO: guard against adding the same package more than once
static String getContextPath(Class<?>... classes) {
if (classes == null || classes.length == 0) {
throw new IllegalArgumentException("Empty package list.");
}
StringBuilder contextPath = new StringBuilder();
for (Class<?> clazz : classes) {
contextPath
.append(clazz.getPackage().getName())
.append(':');
}
contextPath.deleteCharAt(contextPath.length() - 1);
return contextPath.toString();
}
private static JAXBContext newInstance(String contextPath, ClassLoader classLoader) {
System.setProperty(JAXBContext.JAXB_CONTEXT_FACTORY, FACTORY_CLASS);
try {
return JAXBContext.newInstance(contextPath, classLoader);
} catch (JAXBException e) {
throw new IllegalStateException(e);
}
}
}
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