/*
 *  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 compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/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.
 */
package org.apache.coyote;

import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;

Constants.
Author:
Remy Maucherat/**
 * Constants.
 *
 * @author Remy Maucherat
 */
public final class Constants {

    public static final Charset DEFAULT_URI_CHARSET = StandardCharsets.UTF_8;
    public static final Charset DEFAULT_BODY_CHARSET = StandardCharsets.ISO_8859_1;

    public static final int MAX_NOTES = 32;


    // Request states
    public static final int STAGE_NEW = 0;
    public static final int STAGE_PARSE = 1;
    public static final int STAGE_PREPARE = 2;
    public static final int STAGE_SERVICE = 3;
    public static final int STAGE_ENDINPUT = 4;
    public static final int STAGE_ENDOUTPUT = 5;
    public static final int STAGE_KEEPALIVE = 6;
    public static final int STAGE_ENDED = 7;

    // Default protocol settings
    public static final int DEFAULT_CONNECTION_LINGER = -1;
    public static final boolean DEFAULT_TCP_NO_DELAY = true;

    
Has security been turned on?
/**
     * Has security been turned on?
     */
    public static final boolean IS_SECURITY_ENABLED = (System.getSecurityManager() != null);


    
The request attribute that is set to the value of Boolean.TRUE if connector processing this request supports use of sendfile. /**
     * The request attribute that is set to the value of {@code Boolean.TRUE}
     * if connector processing this request supports use of sendfile.
     */
    public static final String SENDFILE_SUPPORTED_ATTR = "org.apache.tomcat.sendfile.support";


    
The request attribute that can be used by a servlet to pass to the connector the name of the file that is to be served by sendfile. The value should be java.lang.String that is File.getCanonicalPath() of the file to be served. /**
     * The request attribute that can be used by a servlet to pass
     * to the connector the name of the file that is to be served
     * by sendfile. The value should be {@code java.lang.String}
     * that is {@code File.getCanonicalPath()} of the file to be served.
     */
    public static final String SENDFILE_FILENAME_ATTR = "org.apache.tomcat.sendfile.filename";


    
The request attribute that can be used by a servlet to pass to the connector the start offset of the part of a file that is to be served by sendfile. The value should be java.lang.Long. To serve complete file the value should be Long.valueOf(0). /**
     * The request attribute that can be used by a servlet to pass
     * to the connector the start offset of the part of a file
     * that is to be served by sendfile. The value should be
     * {@code java.lang.Long}. To serve complete file
     * the value should be {@code Long.valueOf(0)}.
     */
    public static final String SENDFILE_FILE_START_ATTR = "org.apache.tomcat.sendfile.start";


    
The request attribute that can be used by a servlet to pass to the connector the end offset (not including) of the part of a file that is to be served by sendfile. The value should be java.lang.Long. To serve complete file the value should be equal to the length of the file. /**
     * The request attribute that can be used by a servlet to pass
     * to the connector the end offset (not including) of the part
     * of a file that is to be served by sendfile. The value should be
     * {@code java.lang.Long}. To serve complete file
     * the value should be equal to the length of the file.
     */
    public static final String SENDFILE_FILE_END_ATTR = "org.apache.tomcat.sendfile.end";


    
The request attribute set by the RemoteIpFilter, RemoteIpValve (and may
be set by other similar components) that identifies for the connector the
remote IP address claimed to be associated with this request when a
request is received via one or more proxies. It is typically provided via
the X-Forwarded-For HTTP header.
/**
     * The request attribute set by the RemoteIpFilter, RemoteIpValve (and may
     * be set by other similar components) that identifies for the connector the
     * remote IP address claimed to be associated with this request when a
     * request is received via one or more proxies. It is typically provided via
     * the X-Forwarded-For HTTP header.
     */
    public static final String REMOTE_ADDR_ATTRIBUTE = "org.apache.tomcat.remoteAddr";
}