Java example source code file (RFC2109VersionHandler.java)

This example source code file (RFC2109VersionHandler.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

abstractcookieattributehandler, blank, cookie, cookieorigin, illegalargumentexception, immutable, invalid, malformedcookieexception, missing, numberformatexception, override, rfc2109versionhandler, setcookie, string

The RFC2109VersionHandler.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
 * "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.impl.cookie;

import org.apache.http.annotation.Immutable;

import org.apache.http.cookie.Cookie;
import org.apache.http.cookie.CookieOrigin;
import org.apache.http.cookie.MalformedCookieException;
import org.apache.http.cookie.SetCookie;

/**
 *
 * @since 4.0
 */
@Immutable
public class RFC2109VersionHandler extends AbstractCookieAttributeHandler {

    public RFC2109VersionHandler() {
        super();
    }
    
    public void parse(final SetCookie cookie, final String value) 
            throws MalformedCookieException {
        if (cookie == null) {
            throw new IllegalArgumentException("Cookie may not be null");
        }
        if (value == null) {
            throw new MalformedCookieException("Missing value for version attribute");
        }
        if (value.trim().length() == 0) {
            throw new MalformedCookieException("Blank value for version attribute");
        }
        try {
           cookie.setVersion(Integer.parseInt(value));
        } catch (NumberFormatException e) {
            throw new MalformedCookieException("Invalid version: " 
                + e.getMessage());
        }
    }

    @Override
    public void validate(final Cookie cookie, final CookieOrigin origin) 
            throws MalformedCookieException {
        if (cookie == null) {
            throw new IllegalArgumentException("Cookie may not be null");
        }
        if (cookie.getVersion() < 0) {
            throw new MalformedCookieException("Cookie version may not be negative");
        }
    }
    
}