/*
 * 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.sling.resourceresolver.impl.helper;

import org.apache.sling.api.SlingException;

/**
 * The URI parsing and escape encoding exception.
 * <p>
 * This class is a slightly modified version of the URIException class
 * distributed with Http Client 3.1. The changes are removal of deprecated
 * methods and have the class itself extend the <code>SlingException</code> to
 * adapt it to the exception hierarchy of Sling.
 */
@SuppressWarnings("serial")
public class URIException extends SlingException {

    // ----------------------------------------------------------- constructors

    /**
     * Default constructor.
     */
    public URIException() {
    }

    /**
     * The constructor with a reason code argument.
     *
     * @param reasonCode the reason code
     */
    public URIException(int reasonCode) {
        this.reasonCode = reasonCode;
    }

    /**
     * The constructor with a reason string and its code arguments.
     *
     * @param reasonCode the reason code
     * @param reason the reason
     */
    public URIException(int reasonCode, String reason) {
        super(reason); // for backward compatibility of Throwable
        this.reason = reason;
        this.reasonCode = reasonCode;
    }

    /**
     * The constructor with a reason string argument.
     *
     * @param reason the reason
     */
    public URIException(String reason) {
        super(reason); // for backward compatibility of Throwable
        this.reason = reason;
        this.reasonCode = UNKNOWN;
    }

    // -------------------------------------------------------------- constants

    /**
     * No specified reason code.
     */
    public static final int UNKNOWN = 0;

    /**
     * The URI parsing error.
     */
    public static final int PARSING = 1;

    /**
     * The unsupported character encoding.
     */
    public static final int UNSUPPORTED_ENCODING = 2;

    /**
     * The URI escape encoding and decoding error.
     */
    public static final int ESCAPING = 3;

    /**
     * The DNS punycode encoding or decoding error.
     */
    public static final int PUNYCODE = 4;

    // ------------------------------------------------------------- properties

    /**
     * The reason code.
     */
    protected int reasonCode;

    /**
     * The reason message.
     */
    protected String reason;

    // ---------------------------------------------------------------- methods

    /**
     * Get the reason code.
     *
     * @return the reason code
     */
    public int getReasonCode() {
        return reasonCode;
    }

}