Example usage for org.apache.shiro.io SerializationException SerializationException

Introduction

In this page you can find the example usage for org.apache.shiro.io SerializationException SerializationException.

Prototype

public SerializationException(String message, Throwable cause) 

Source Link

Document

Constructs a new SerializationException.

Usage

From source file:com.github.zhangkaitao.shiro.chapter7.cache.SerializationUtils.java

License:Apache License

/**
 * <p>Deep clone an {@code Object} using serialization.</p>
 *
 * <p>This is many times slower than writing clone methods by hand
 * on all objects in your object graph. However, for complex object
 * graphs, or for those that don't support deep cloning this can
 * be a simple alternative implementation. Of course all the objects
 * must be {@code Serializable}.</p>
 *
 * @param <T> the type of the object involved
 * @param object  the {@code Serializable} object to clone
 * @return the cloned object/* w w w. ja  v  a  2s . co  m*/
 * @throws SerializationException (runtime) if the serialization fails
 */
public static <T extends Serializable> T clone(T object) {
    if (object == null) {
        return null;
    }
    byte[] objectData = serialize(object);
    ByteArrayInputStream bais = new ByteArrayInputStream(objectData);

    ClassLoaderAwareObjectInputStream in = null;
    try {
        // stream closed in the finally
        in = new ClassLoaderAwareObjectInputStream(bais, object.getClass().getClassLoader());
        /*
         * when we serialize and deserialize an object,
         * it is reasonable to assume the deserialized object
         * is of the same type as the original serialized object
         */
        return (T) in.readObject();

    } catch (ClassNotFoundException ex) {
        throw new SerializationException("ClassNotFoundException while reading cloned object data", ex);
    } catch (IOException ex) {
        throw new SerializationException("IOException while reading cloned object data", ex);
    } finally {
        try {
            if (in != null) {
                in.close();
            }
        } catch (IOException ex) {
            throw new SerializationException("IOException on closing cloned object data InputStream.", ex);
        }
    }
}

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