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// 
// ========================================================================
// Copyright (c) 1995-2022 Mort Bay Consulting Pty Ltd and others.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// 
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
// 
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// 
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
// 
package org.eclipse.jetty.http;

import java.util.Arrays;
import static java.nio.charset.StandardCharsets.ISO_8859_1;

/**
 * @deprecated The Eclipse Jetty and Apache Felix Http Jetty packages are no longer supported.
 */
@Deprecated(since = "2021-05-27")
public class Http1FieldPreEncoder implements HttpFieldPreEncoder {

    /**
     * @see org.eclipse.jetty.http.HttpFieldPreEncoder#getHttpVersion()
     */
    @Override
    public HttpVersion getHttpVersion() {
        return HttpVersion.HTTP_1_0;
    }

    /**
     * @see org.eclipse.jetty.http.HttpFieldPreEncoder#getEncodedField(org.eclipse.jetty.http.HttpHeader, java.lang.String, java.lang.String)
     */
    @Override
    public byte[] getEncodedField(HttpHeader header, String headerString, String value) {
        if (header != null) {
            int cbl = header.getBytesColonSpace().length;
            byte[] bytes = Arrays.copyOf(header.getBytesColonSpace(), cbl + value.length() + 2);
            System.arraycopy(value.getBytes(ISO_8859_1), 0, bytes, cbl, value.length());
            bytes[bytes.length - 2] = (byte) '\r';
            bytes[bytes.length - 1] = (byte) '\n';
            return bytes;
        }
        byte[] n = headerString.getBytes(ISO_8859_1);
        byte[] v = value.getBytes(ISO_8859_1);
        byte[] bytes = Arrays.copyOf(n, n.length + 2 + v.length + 2);
        bytes[n.length] = (byte) ':';
        bytes[n.length + 1] = (byte) ' ';
        System.arraycopy(v, 0, bytes, n.length + 2, v.length);
        bytes[bytes.length - 2] = (byte) '\r';
        bytes[bytes.length - 1] = (byte) '\n';
        return bytes;
    }
}