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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.pluto.container;

/**
 * Thrown when an internal portlet container exception occurs within Pluto.
 * This type of exception indicates an error from which the container is not
 * able to recover.
 *
 * @version 1.0
 */
public class PortletContainerException extends Exception {
    private static final long serialVersionUID = 1737400909124312241L;
    private Throwable cause;

    /**
     * Constructs a new PortletContainerException.
     * This exception will have no message and no root cause.
     */
    public PortletContainerException() {

    }

    /**
     * Constructs a new PortletContainerException with the given message.
     * @param text the message explaining the exception occurance
     */
    public PortletContainerException(String text) {
        super(text);
    }

    /**
     * Constructs a new PortletContainerException with the given message and
     * root cause.
     * @param text  the message explaining the exception occurance
     * @param cause the root cause of the is exception
     */
    public PortletContainerException(String text, Throwable cause) {
        super(text, cause);
        this.cause = cause;
    }

    /**
     * Constructs a new portlet invoker exception when the portlet needs to
     * throw an exception. The exception's message is based on the localized
     * message of the underlying exception.
     * @param cause the root cause
     */
    public PortletContainerException(Throwable cause) {
        super(cause.getLocalizedMessage(), cause);
        this.cause = cause;
    }

    /**
     * Returns the exception that cause this portlet exception.
     * @return the Throwable that caused this portlet exception.
     */
    public Throwable getRootCause() {
        return cause;
    }
}