MessageTypeTerm.java

/* Copyright 2024-2025 The Johns Hopkins University Applied Physics Laboratory
 * Licensed to CS GROUP (CS) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * CS licenses this file to You under the Apache License, Version 2.0
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 * the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
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 * distributed under the License is distributed on an "AS IS" BASIS,
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package org.orekit.files.iirv.terms;

import org.orekit.files.iirv.terms.base.StringValuedIIRVTerm;

/**
 * 2-character type of this message.
 * <p>
 * Valid values: Any letter, number or, ASCII space
 *
 * @author Nick LaFarge
 * @since 13.0
 */
public class MessageTypeTerm extends StringValuedIIRVTerm {

    /** Default value: "03" (operations data message). */
    public static final MessageTypeTerm DEFAULT = new MessageTypeTerm("03");

    /** The length of the message type term within the IIRV vector. */
    public static final int MESSAGE_TYPE_TERM_LENGTH = 2;

    /** Regular expression that ensures the validity of string values for this term. */
    public static final String MESSAGE_TYPE_TERM_PATTERN = "[0-9A-Za-z ][0-9A-Za-z ]";

    /**
     * Constructor.
     * <p>
     * See {@link StringValuedIIRVTerm#StringValuedIIRVTerm(String, String, int)}
     *
     * @param value value of the message type term
     */
    public MessageTypeTerm(final String value) {
        super(MESSAGE_TYPE_TERM_PATTERN, value, MESSAGE_TYPE_TERM_LENGTH);
    }
}