org.apache.http.Header Maven / Gradle / Ivy
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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 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.
* ====================================================================
*
* 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.apache.http;
/**
* Represents an HTTP header field.
*
* The HTTP header fields follow the same generic format as
* that given in Section 3.1 of RFC 822. Each header field consists
* of a name followed by a colon (":") and the field value. Field names
* are case-insensitive. The field value MAY be preceded by any amount
* of LWS, though a single SP is preferred.
*
*
* message-header = field-name ":" [ field-value ]
* field-name = token
* field-value = *( field-content | LWS )
* field-content = <the OCTETs making up the field-value
* and consisting of either *TEXT or combinations
* of token, separators, and quoted-string>
*
*
* @since 4.0
*/
public interface Header {
/**
* Get the name of the Header.
*
* @return the name of the Header, never {@code null}
*/
String getName();
/**
* Get the value of the Header.
*
* @return the value of the Header, may be {@code null}
*/
String getValue();
/**
* Parses the value.
*
* @return an array of {@link HeaderElement} entries, may be empty, but is never {@code null}
* @throws ParseException in case of a parsing error
*/
HeaderElement[] getElements() throws ParseException;
}