org.exquery.serialization.annotation.EncodingAnnotation Maven / Gradle / Ivy

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/**
 * Copyright © 2012, Adam Retter / EXQuery
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the  nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL  BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.exquery.serialization.annotation;

import java.nio.charset.Charset;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Serialization Encoding Annotation
 * i.e. %output:encoding
 *
 * @author Adam Retter
 */
public class EncodingAnnotation extends AbstractSingleValueSerializationAnnotation {

    //Regular Expression to match any Encoding
    private final static Pattern ptnEncoding = Pattern.compile("[a-zA-Z0-9\\-]+");

    @Override
    protected boolean validate(final String value) {
        final Matcher mtcEncoding = ptnEncoding.matcher(value);
        return mtcEncoding.matches() && Charset.isSupported(value);
    }

    @Override
    protected SerializationAnnotationErrorCodes.SerializationAnnotationErrorCode getTooManyLiteralsErr() {
        return SerializationAnnotationErrorCodes.SEST0013;
    }

    @Override
    protected SerializationAnnotationErrorCodes.SerializationAnnotationErrorCode getEmptyAnnotationParamsErr() {
        return SerializationAnnotationErrorCodes.SEST0014;
    }

    @Override
    protected SerializationAnnotationErrorCodes.SerializationAnnotationErrorCode getInvalidValueErr() {
        return SerializationAnnotationErrorCodes.SEST0015;
    }
}