View Javadoc
1   /**
2    * This file Copyright (c) 2015-2017 Magnolia International
3    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
4    *
5    *
6    * This file is dual-licensed under both the Magnolia
7    * Network Agreement and the GNU General Public License.
8    * You may elect to use one or the other of these licenses.
9    *
10   * This file is distributed in the hope that it will be
11   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12   * implied warranty of MERCHANTABILITY or FITNESS FOR A
13   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14   * Redistribution, except as permitted by whichever of the GPL
15   * or MNA you select, is prohibited.
16   *
17   * 1. For the GPL license (GPL), you can redistribute and/or
18   * modify this file under the terms of the GNU General
19   * Public License, Version 3, as published by the Free Software
20   * Foundation.  You should have received a copy of the GNU
21   * General Public License, Version 3 along with this program;
22   * if not, write to the Free Software Foundation, Inc., 51
23   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24   *
25   * 2. For the Magnolia Network Agreement (MNA), this file
26   * and the accompanying materials are made available under the
27   * terms of the MNA which accompanies this distribution, and
28   * is available at http://www.magnolia-cms.com/mna.html
29   *
30   * Any modifications to this file must keep this entire header
31   * intact.
32   *
33   */
34  package info.magnolia.cache.browser.rest;
35  
36  import info.magnolia.cache.browser.rest.client.CacheService;
37  import info.magnolia.cache.browser.rest.endpoint.CacheEndpoint;
38  import info.magnolia.cache.browser.rest.filter.AuthenticationClientRequestFilter;
39  import info.magnolia.cms.exchange.ActivationManager;
40  import info.magnolia.cms.exchange.Subscriber;
41  import info.magnolia.resteasy.client.RestEasyClient;
42  import info.magnolia.resteasy.client.RestEasyClientDefinition;
43  import info.magnolia.resteasy.client.factory.RestEasyClientFactory;
44  
45  import java.util.ArrayList;
46  import java.util.HashMap;
47  import java.util.List;
48  import java.util.Map;
49  
50  import javax.inject.Inject;
51  import javax.inject.Provider;
52  import javax.inject.Singleton;
53  
54  import org.apache.commons.lang3.StringUtils;
55  
56  /**
57   * Factory that handles instantiation of {@link CacheService} for each <b>active</b> public instance.
58   */
59  @Singleton
60  public class CacheServiceFactory {
61  
62      private Provider<ActivationManager> provider;
63  
64      @Inject
65      public CacheServiceFactory(Provider<ActivationManager> provider) {
66          this.provider = provider;
67      }
68  
69      /**
70       * Creates cache services for each active public instance registered in the system. Credentials may not be specified if {@link CacheEndpoint} is exposed
71       * to the public (THIS IS NOT RECOMMENDED FOR SECURITY REASONS!).
72       *
73       * @param credentials credentials used by the rest client in order to be able to access cache rest endpoint
74       * @return map of services where key is name of the public instance
75       */
76      public Map<String, CacheService> createCacheServices(final String[] credentials) {
77          Map<String, CacheService> cacheServices = new HashMap<>();
78          for (Subscriber subscriber : provider.get().getSubscribers()) {
79              if (subscriber.isActive()) {
80                  RestEasyClientDefinition restEasyClientDefinition = new RestEasyClientDefinition();
81                  if (credentials != null && credentials.length == 2) {
82                      final List<Object> clientFilters = new ArrayList<>(restEasyClientDefinition.getClientFilters());
83                      clientFilters.add(new AuthenticationClientRequestFilter(credentials[0], credentials[1]));
84                      restEasyClientDefinition.setClientFilters(clientFilters);
85                  }
86                  String url = StringUtils.removeEnd(subscriber.getURL(), "/");
87                  restEasyClientDefinition.setBaseUrl(url + CacheEndpoint.DEFAULT_REST_URL);
88                  RestEasyClientFactory restEasyClientFactory = new RestEasyClientFactory(restEasyClientDefinition);
89                  cacheServices.put(subscriber.getName(), ((RestEasyClient) restEasyClientFactory.createClient()).getClientService(CacheService.class));
90              }
91          }
92          return cacheServices;
93      }
94  }