| /* |
| * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/message/BasicHeader.java $ |
| * $Revision: 652956 $ |
| * $Date: 2008-05-02 17:13:05 -0700 (Fri, 02 May 2008) $ |
| * |
| * ==================================================================== |
| * 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 |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.http.message; |
| |
| import org.apache.http.Header; |
| import org.apache.http.HeaderElement; |
| import org.apache.http.ParseException; |
| |
| /** |
| * Represents an HTTP header field. |
| * |
| * <p>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. |
| * |
| *<pre> |
| * 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> |
| *</pre> |
| * |
| * @author <a href="mailto:remm@apache.org">Remy Maucherat</a> |
| * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a> |
| * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> |
| * |
| * |
| * <!-- empty lines above to avoid 'svn diff' context problems --> |
| * @version $Revision: 652956 $ $Date: 2008-05-02 17:13:05 -0700 (Fri, 02 May 2008) $ |
| * |
| * @since 4.0 |
| */ |
| public class BasicHeader implements Header, Cloneable { |
| |
| /** |
| * Header name. |
| */ |
| private final String name; |
| |
| /** |
| * Header value. |
| */ |
| private final String value; |
| |
| /** |
| * Constructor with name and value |
| * |
| * @param name the header name |
| * @param value the header value |
| */ |
| public BasicHeader(final String name, final String value) { |
| super(); |
| if (name == null) { |
| throw new IllegalArgumentException("Name may not be null"); |
| } |
| this.name = name; |
| this.value = value; |
| } |
| |
| /** |
| * Returns the header name. |
| * |
| * @return String name The name |
| */ |
| public String getName() { |
| return this.name; |
| } |
| |
| /** |
| * Returns the header value. |
| * |
| * @return String value The current value. |
| */ |
| public String getValue() { |
| return this.value; |
| } |
| |
| /** |
| * Returns a {@link String} representation of the header. |
| * |
| * @return a string |
| */ |
| public String toString() { |
| // no need for non-default formatting in toString() |
| return BasicLineFormatter.DEFAULT.formatHeader(null, this).toString(); |
| } |
| |
| /** |
| * Returns an array of {@link HeaderElement}s constructed from my value. |
| * |
| * @see BasicHeaderValueParser#parseElements(String, HeaderValueParser) |
| * |
| * @return an array of header elements |
| * |
| * @throws ParseException in case of a parse error |
| */ |
| public HeaderElement[] getElements() throws ParseException { |
| if (this.value != null) { |
| // result intentionally not cached, it's probably not used again |
| return BasicHeaderValueParser.parseElements(this.value, null); |
| } else { |
| return new HeaderElement[] {}; |
| } |
| } |
| |
| public Object clone() throws CloneNotSupportedException { |
| return super.clone(); |
| } |
| |
| } |