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Java example source code file (NetscapeDraftSpec.java)

This example source code file (NetscapeDraftSpec.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java tags/keywords

arraylist, chararraybuffer, expires_pattern, formattedheader, header, hh:mm:ss, illegalargumentexception, list, malformedcookieexception, netscapedraftspec, notthreadsafe, parsercursor, string, unrecognized, util

The NetscapeDraftSpec.java example source code

 * ====================================================================
 * 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
 * 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.impl.cookie;

import java.util.ArrayList;
import java.util.List;

import org.apache.http.annotation.NotThreadSafe;

import org.apache.http.FormattedHeader;
import org.apache.http.Header;
import org.apache.http.HeaderElement;
import org.apache.http.cookie.ClientCookie;
import org.apache.http.cookie.Cookie;
import org.apache.http.cookie.CookieOrigin;
import org.apache.http.cookie.CookieSpec;
import org.apache.http.cookie.MalformedCookieException;
import org.apache.http.cookie.SM;
import org.apache.http.message.BufferedHeader;
import org.apache.http.message.ParserCursor;
import org.apache.http.util.CharArrayBuffer;

 * This {@link CookieSpec} implementation conforms to the original draft 
 * specification published by Netscape Communications. It should be avoided 
 * unless absolutely necessary for compatibility with legacy code.
 * @since 4.0 
@NotThreadSafe // superclass is @NotThreadSafe
public class NetscapeDraftSpec extends CookieSpecBase {

    protected static final String EXPIRES_PATTERN = "EEE, dd-MMM-yyyy HH:mm:ss z";
    private final String[] datepatterns; 
    /** Default constructor */
    public NetscapeDraftSpec(final String[] datepatterns) {
        if (datepatterns != null) {
            this.datepatterns = datepatterns.clone();
        } else {
            this.datepatterns = new String[] { EXPIRES_PATTERN };
        registerAttribHandler(ClientCookie.PATH_ATTR, new BasicPathHandler());
        registerAttribHandler(ClientCookie.DOMAIN_ATTR, new NetscapeDomainHandler());
        registerAttribHandler(ClientCookie.MAX_AGE_ATTR, new BasicMaxAgeHandler());
        registerAttribHandler(ClientCookie.SECURE_ATTR, new BasicSecureHandler());
        registerAttribHandler(ClientCookie.COMMENT_ATTR, new BasicCommentHandler());
        registerAttribHandler(ClientCookie.EXPIRES_ATTR, new BasicExpiresHandler(

    /** Default constructor */
    public NetscapeDraftSpec() {
      * Parses the Set-Cookie value into an array of <tt>Cookies.
      * <p>Syntax of the Set-Cookie HTTP Response Header:

* * <p>This is the format a CGI script would use to add to * the HTTP headers a new piece of data which is to be stored by * the client for later retrieval.</p> * * <PRE> * Set-Cookie: NAME=VALUE; expires=DATE; path=PATH; domain=DOMAIN_NAME; secure * </PRE> * * <p>Please note that Netscape draft specification does not fully * conform to the HTTP header format. Netscape draft does not specify * whether multiple cookies may be sent in one header. Hence, comma * character may be present in unquoted cookie value or unquoted * parameter value.</p> * * @see <a href="http://wp.netscape.com/newsref/std/cookie_spec.html"> * The Cookie Spec.</a> * * @param header the <tt>Set-Cookie received from the server * @return an array of <tt>Cookies parsed from the Set-Cookie value * @throws MalformedCookieException if an exception occurs during parsing */ public List<Cookie> parse(final Header header, final CookieOrigin origin) throws MalformedCookieException { if (header == null) { throw new IllegalArgumentException("Header may not be null"); } if (origin == null) { throw new IllegalArgumentException("Cookie origin may not be null"); } if (!header.getName().equalsIgnoreCase(SM.SET_COOKIE)) { throw new MalformedCookieException("Unrecognized cookie header '" + header.toString() + "'"); } NetscapeDraftHeaderParser parser = NetscapeDraftHeaderParser.DEFAULT; CharArrayBuffer buffer; ParserCursor cursor; if (header instanceof FormattedHeader) { buffer = ((FormattedHeader) header).getBuffer(); cursor = new ParserCursor( ((FormattedHeader) header).getValuePos(), buffer.length()); } else { String s = header.getValue(); if (s == null) { throw new MalformedCookieException("Header value is null"); } buffer = new CharArrayBuffer(s.length()); buffer.append(s); cursor = new ParserCursor(0, buffer.length()); } return parse(new HeaderElement[] { parser.parseHeader(buffer, cursor) }, origin); } public List<Header> formatCookies(final List cookies) { if (cookies == null) { throw new IllegalArgumentException("List of cookies may not be null"); } if (cookies.isEmpty()) { throw new IllegalArgumentException("List of cookies may not be empty"); } CharArrayBuffer buffer = new CharArrayBuffer(20 * cookies.size()); buffer.append(SM.COOKIE); buffer.append(": "); for (int i = 0; i < cookies.size(); i++) { Cookie cookie = cookies.get(i); if (i > 0) { buffer.append("; "); } buffer.append(cookie.getName()); String s = cookie.getValue(); if (s != null) { buffer.append("="); buffer.append(s); } } List<Header> headers = new ArrayList
(1); headers.add(new BufferedHeader(buffer)); return headers; } public int getVersion() { return 0; } public Header getVersionHeader() { return null; } @Override public String toString() { return "netscape"; } }

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