/*
 * 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.commons.io.input;

import java.io.IOException;

The XmlStreamReaderException is thrown by the XmlStreamReader constructors if
the charset encoding can not be determined according to the XML 1.0
specification and RFC 3023.

The exception returns the unconsumed InputStream to allow the application to
do an alternate processing with the stream. Note that the original
InputStream given to the XmlStreamReader cannot be used as that one has been
already read.
Since:
2.0/**
 * The XmlStreamReaderException is thrown by the XmlStreamReader constructors if
 * the charset encoding can not be determined according to the XML 1.0
 * specification and RFC 3023.
 * <p>
 * The exception returns the unconsumed InputStream to allow the application to
 * do an alternate processing with the stream. Note that the original
 * InputStream given to the XmlStreamReader cannot be used as that one has been
 * already read.
 *
 * @since 2.0
 */
public class XmlStreamReaderException extends IOException {

    private static final long serialVersionUID = 1L;

    private final String bomEncoding;

    private final String xmlGuessEncoding;

    private final String xmlEncoding;

    private final String contentTypeMime;

    private final String contentTypeEncoding;

    
Creates an exception instance if the charset encoding could not be
determined.

Instances of this exception are thrown by the XmlStreamReader.
Params:
msg – message describing the reason for the exception.
bomEnc – BOM encoding.
xmlGuessEnc – XML guess encoding.
xmlEnc – XML prolog encoding./**
     * Creates an exception instance if the charset encoding could not be
     * determined.
     * <p>
     * Instances of this exception are thrown by the XmlStreamReader.
     *
     * @param msg message describing the reason for the exception.
     * @param bomEnc BOM encoding.
     * @param xmlGuessEnc XML guess encoding.
     * @param xmlEnc XML prolog encoding.
     */
    public XmlStreamReaderException(final String msg, final String bomEnc,
            final String xmlGuessEnc, final String xmlEnc) {
        this(msg, null, null, bomEnc, xmlGuessEnc, xmlEnc);
    }

    
Creates an exception instance if the charset encoding could not be
determined.

Instances of this exception are thrown by the XmlStreamReader.
Params:
msg – message describing the reason for the exception.
ctMime – MIME type in the content-type.
ctEnc – encoding in the content-type.
bomEnc – BOM encoding.
xmlGuessEnc – XML guess encoding.
xmlEnc – XML prolog encoding./**
     * Creates an exception instance if the charset encoding could not be
     * determined.
     * <p>
     * Instances of this exception are thrown by the XmlStreamReader.
     *
     * @param msg message describing the reason for the exception.
     * @param ctMime MIME type in the content-type.
     * @param ctEnc encoding in the content-type.
     * @param bomEnc BOM encoding.
     * @param xmlGuessEnc XML guess encoding.
     * @param xmlEnc XML prolog encoding.
     */
    public XmlStreamReaderException(final String msg, final String ctMime, final String ctEnc,
            final String bomEnc, final String xmlGuessEnc, final String xmlEnc) {
        super(msg);
        contentTypeMime = ctMime;
        contentTypeEncoding = ctEnc;
        bomEncoding = bomEnc;
        xmlGuessEncoding = xmlGuessEnc;
        xmlEncoding = xmlEnc;
    }

    
Returns the BOM encoding found in the InputStream.
Returns:
the BOM encoding, null if none./**
     * Returns the BOM encoding found in the InputStream.
     *
     * @return the BOM encoding, null if none.
     */
    public String getBomEncoding() {
        return bomEncoding;
    }

    
Returns the encoding guess based on the first bytes of the InputStream.
Returns:
the encoding guess, null if it couldn't be guessed./**
     * Returns the encoding guess based on the first bytes of the InputStream.
     *
     * @return the encoding guess, null if it couldn't be guessed.
     */
    public String getXmlGuessEncoding() {
        return xmlGuessEncoding;
    }

    
Returns the encoding found in the XML prolog of the InputStream.
Returns:
the encoding of the XML prolog, null if none./**
     * Returns the encoding found in the XML prolog of the InputStream.
     *
     * @return the encoding of the XML prolog, null if none.
     */
    public String getXmlEncoding() {
        return xmlEncoding;
    }

    
Returns the MIME type in the content-type used to attempt determining the
encoding.
Returns:
the MIME type in the content-type, null if there was not
        content-type or the encoding detection did not involve HTTP./**
     * Returns the MIME type in the content-type used to attempt determining the
     * encoding.
     *
     * @return the MIME type in the content-type, null if there was not
     *         content-type or the encoding detection did not involve HTTP.
     */
    public String getContentTypeMime() {
        return contentTypeMime;
    }

    
Returns the encoding in the content-type used to attempt determining the
encoding.
Returns:
the encoding in the content-type, null if there was not
        content-type, no encoding in it or the encoding detection did not
        involve HTTP./**
     * Returns the encoding in the content-type used to attempt determining the
     * encoding.
     *
     * @return the encoding in the content-type, null if there was not
     *         content-type, no encoding in it or the encoding detection did not
     *         involve HTTP.
     */
    public String getContentTypeEncoding() {
        return contentTypeEncoding;
    }
}