/*
* Encog(tm) Core v3.4 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2016 Heaton Research, Inc.
*
* Licensed 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.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.util.http;
import java.net.URLConnection;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;
/**
* This class allows URLConnection objects to process cookies. The loadCookies
* method grabs the Set-Cookie headers and loads the cookies into the map. The
* saveCookies method writes out the cookie map to the a URLConnection object as
* Cookie headers.
*/
public class CookieUtility {
/**
* Map that holds all of the cookie values.
*/
private final Map<String, String> map = new HashMap<String, String>();
/**
* Allows access to the name/value pair list of cookies.
*
* @return the map
*/
public Map<String, String> getMap() {
return this.map;
}
/**
* Load any cookies from the specified URLConnection object. Cookies will be
* located by their Set-Cookie headers. Any cookies that are found can be
* moved to a new URLConnection class by calling saveCookies.
*
* @param http
* The URLConnection object to load the cookies from.
*/
public void loadCookies(final URLConnection http) {
String str;
int n = 1;
do {
str = http.getHeaderFieldKey(n);
if ((str != null) && str.equalsIgnoreCase("Set-Cookie")) {
str = http.getHeaderField(n);
final StringTokenizer tok = new StringTokenizer(str, "=");
final String name = tok.nextToken();
final String value = tok.nextToken();
this.map.put(name, value);
}
n++;
} while (str != null);
}
/**
* Once you have loaded cookies with loadCookies, you can call saveCookies
* to copy these cookies to a new HTTP request. This allows you to easily
* support cookies.
*
* @param http
* The URLConnection object to add cookies to.
*/
public void saveCookies(final URLConnection http) {
final StringBuilder str = new StringBuilder();
final Set<String> set = this.map.keySet();
for (final String key : set) {
final String value = this.map.get(key);
if (str.length() > 0) {
str.append("; ");
}
str.append(key + "=" + value);
}
http.setRequestProperty("Cookie", str.toString());
}
}