org.crazycake.shiro.serializer.MultiClassLoaderObjectInputStream Maven / Gradle / Ivy

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shiro only provide the support of ehcache and concurrentHashMap. Here is an implement of redis cache can be used by shiro. Hope it will help you!

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package org.crazycake.shiro.serializer;

import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectStreamClass;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * For fixing https://github.com/alexxiyang/shiro-redis/issues/84
 */
public class MultiClassLoaderObjectInputStream extends ObjectInputStream {
	private static Logger logger = LoggerFactory.getLogger(MultiClassLoaderObjectInputStream.class);
	
	MultiClassLoaderObjectInputStream(InputStream str) throws IOException {
		super(str);
	}

	@Override
	protected Class resolveClass(ObjectStreamClass desc) throws IOException, ClassNotFoundException {
        String name = desc.getName();

		try {
			ClassLoader cl = Thread.currentThread().getContextClassLoader();
			return Class.forName(name, false, cl);
		} catch (Throwable ex) {
			logger.debug("Cannot access thread context ClassLoader!", ex);
		}
		
		try {
			ClassLoader cl = MultiClassLoaderObjectInputStream.class.getClassLoader();
			return Class.forName(name, false, cl);
		} catch (Throwable ex) {
			logger.debug("Cannot access application ClassLoader", ex);
		}
		
		try {
			ClassLoader cl = ClassLoader.getSystemClassLoader();
			return Class.forName(name, false, cl);
		} catch (Throwable ex) {
			logger.debug("Cannot access system ClassLoader", ex);
		}

        return super.resolveClass(desc);
    }

}