com.sun.syndication.propono.atom.server.FactoryConfigurationError Maven / Gradle / Ivy

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The ROME Propono subproject is a Java class library that supports publishing protocols, specifically the Atom Publishing Protocol and the legacy MetaWeblog API. Propono includes an Atom client library, Atom server framework and a Blog client that supports both Atom protocol and the MetaWeblog API.

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/*   
 * Copyright 2007 Sun Microsystems, Inc.
 * 
 * Licensed 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 com.sun.syndication.propono.atom.server;

/**
 * Thrown when a problem with configuration with the 
 * {@link com.sun.syndication.propono.atom.server.AtomHandlerFactory} exists. 
 * This error will typically be thrown when the class of a parser factory 
 * specified in the system properties cannot be found or instantiated.
 */
public class FactoryConfigurationError extends Error {
    
    /**
     * Exception that represents the error.
     */
    private Exception exception;
    
    /**
     * Create a new FactoryConfigurationError with no
     * detail mesage.
     */    
    public FactoryConfigurationError() {
        super();
        this.exception = null;
    }
    
    /**
     * Create a new FactoryConfigurationError with
     * the String  specified as an error message.
     *
     * @param msg The error message for the exception.
     */    
    public FactoryConfigurationError(String msg) {
        super(msg);
        this.exception = null;
    }
    
    
    /**
     * Create a new FactoryConfigurationError with a
     * given Exception base cause of the error.
     *
     * @param e The exception to be encapsulated in a
     * FactoryConfigurationError.
     */    
    public FactoryConfigurationError(Exception e) {
        super(e.toString());
        this.exception = e;
    }
    
    /**
     * Create a new FactoryConfigurationError with the
     * given Exception base cause and detail message.
     *
     * @param e The exception to be encapsulated in a
     * FactoryConfigurationError
     * @param msg The detail message.
     */    
    public FactoryConfigurationError(Exception e, String msg) {
        super(msg);
        this.exception = e;
    }
    
    
    /**
     * Return the message (if any) for this error . If there is no
     * message for the exception and there is an encapsulated
     * exception then the message of that exception, if it exists will be
     * returned. Else the name of the encapsulated exception will be
     * returned.
     *
     * @return The error message.
     */    
    public String getMessage() {
        String message = super.getMessage();
        
        if (message == null && exception != null) {
            return exception.getMessage();
        }
        
        return message;
    }
    
    /**
     * Return the actual exception (if any) that caused this exception to
     * be raised.
     *
     * @return The encapsulated exception, or null if there is none.
     */    
    public Exception getException() {
        return exception;
    }
}