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/*
 * ====================================================================
 * 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 org.testifyproject.testifyprojectpliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org.testifyproject/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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * .
 *
 */

package org.testifyproject.apache.http.protocol;

import java.nio.charset.Charset;

import org.testifyproject.apache.http.Consts;

/**
 * Constants and static helpers related to the HTTP protocol.
 *
 * @since 4.0
 */
public final class HTTP {

    public static final int CR = 13; // 
    public static final int LF = 10; // 
    public static final int SP = 32; // 
    public static final int HT = 9;  // 

    /** HTTP header org.testifyproject.testifyprojectfinitions */
    public static final String TRANSFER_ENCODING = "Transfer-Encoding";
    public static final String CONTENT_LEN  = "Content-Length";
    public static final String CONTENT_TYPE = "Content-Type";
    public static final String CONTENT_ENCODING = "Content-Encoding";
    public static final String EXPECT_DIRECTIVE = "Expect";
    public static final String CONN_DIRECTIVE = "Connection";
    public static final String TARGET_HOST = "Host";
    public static final String USER_AGENT = "User-Agent";
    public static final String DATE_HEADER = "Date";
    public static final String SERVER_HEADER = "Server";

    /** HTTP expectations */
    public static final String EXPECT_CONTINUE = "100-continue";

    /** HTTP connection control */
    public static final String CONN_CLOSE = "Close";
    public static final String CONN_KEEP_ALIVE = "Keep-Alive";

    /** Transfer encoding org.testifyproject.testifyprojectfinitions */
    public static final String CHUNK_CODING = "chunked";
    public static final String IDENTITY_CODING = "identity";

    public static final Charset DEF_CONTENT_CHARSET = Consts.ISO_8859_1;
    public static final Charset DEF_PROTOCOL_CHARSET = Consts.ASCII;

    /**
     * @org.testifyproject.testifyprojectprecated (4.2)
     */
    @Deprecated
    public static final String UTF_8 = "UTF-8";
    /**
     * @org.testifyproject.testifyprojectprecated (4.2)
     */
    @Deprecated
    public static final String UTF_16 = "UTF-16";
    /**
     * @org.testifyproject.testifyprojectprecated (4.2)
     */
    @Deprecated
    public static final String US_ASCII = "US-ASCII";
    /**
     * @org.testifyproject.testifyprojectprecated (4.2)
     */
    @Deprecated
    public static final String ASCII = "ASCII";
    /**
     * @org.testifyproject.testifyprojectprecated (4.2)
     */
    @Deprecated
    public static final String ISO_8859_1 = "ISO-8859-1";
    /**
     * @org.testifyproject.testifyprojectprecated (4.2)
     */
    @Deprecated
    public static final String DEFAULT_CONTENT_CHARSET = ISO_8859_1;
    /**
     * @org.testifyproject.testifyprojectprecated (4.2)
     */
    @Deprecated
    public static final String DEFAULT_PROTOCOL_CHARSET = US_ASCII;
    /**
     * @org.testifyproject.testifyprojectprecated (4.2)
     */
    @Deprecated
    public final static String OCTET_STREAM_TYPE = "application/octet-stream";
    /**
     * @org.testifyproject.testifyprojectprecated (4.2)
     */
    @Deprecated
    public final static String PLAIN_TEXT_TYPE = "text/plain";
    /**
     * @org.testifyproject.testifyprojectprecated (4.2)
     */
    @Deprecated
    public final static String CHARSET_PARAM = "; charset=";
    /**
     * @org.testifyproject.testifyprojectprecated (4.2)
     */
    @Deprecated
    public final static String DEFAULT_CONTENT_TYPE = OCTET_STREAM_TYPE;

    public static boolean isWhitespace(final char ch) {
        return ch == SP || ch == HT || ch == CR || ch == LF;
    }

    private HTTP() {
    }

}