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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.codehaus.groovy.syntax;

import org.codehaus.groovy.GroovyException;

import java.io.IOException;

/**
 * Encapsulates non-specific i/o exceptions.
 */
public class ReadException extends GroovyException {
    private static final long serialVersionUID = 848585058428047961L;
    private final IOException cause;

    public ReadException(IOException cause) {
        super();
        this.cause = cause;
    }

    public ReadException(String message, IOException cause) {
        super(message);
        this.cause = cause;
    }

    public IOException getIOCause() {
        return this.cause;
    }

    public String toString() {
        String message = super.getMessage();
        if (message == null || message.trim().equals("")) {
            message = cause.getMessage();
        }

        return message;
    }

    public String getMessage() {
        return toString();
    }
}