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/*
 * Copyright (c) 1997, 2023 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.eclipse.angus.mail.imap.protocol;

import org.eclipse.angus.mail.iap.ByteArray;
import org.eclipse.angus.mail.iap.ParsingException;

import java.io.ByteArrayInputStream;

/**
 * The BODY fetch response item.
 *
 * @author John Mani
 * @author Bill Shannon
 */

public class BODY implements Item {

    static final char[] name = {'B', 'O', 'D', 'Y'};

    private final int msgno;
    private final ByteArray data;
    private final String section;
    private final int origin;
    private final boolean isHeader;

    /**
     * Constructor
     *
     * @throws ParsingException for parsing failures
     * @param    r    the FetchResponse
     */
    public BODY(FetchResponse r) throws ParsingException {
        msgno = r.getNumber();

        r.skipSpaces();

        if (r.readByte() != '[')
            throw new ParsingException(
                    "BODY parse error: missing ``['' at section start");
        section = r.readString(']');
        if (r.readByte() != ']')
            throw new ParsingException(
                    "BODY parse error: missing ``]'' at section end");
        isHeader = section.regionMatches(true, 0, "HEADER", 0, 6);

        if (r.readByte() == '<') { // origin
            origin = r.readNumber();
            r.skip(1); // skip '>';
        } else
            origin = -1;

        data = r.readByteArray();
    }

    public ByteArray getByteArray() {
        return data;
    }

    public ByteArrayInputStream getByteArrayInputStream() {
        if (data != null)
            return data.toByteArrayInputStream();
        else
            return null;
    }

    public boolean isHeader() {
        return isHeader;
    }

    public String getSection() {
        return section;
    }

    /**
     * @return origin
     * @since Jakarta Mail 1.6.4
     */
    public int getOrigin() {
        return origin;
    }
}