/*
* #%L
* ACS AEM Commons Bundle
* %%
* Copyright (C) 2013 Adobe
* %%
* 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.
* #L%
*/
package com.adobe.acs.commons.twitter.impl;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Properties;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.api.adapter.AdapterFactory;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ResourceUtil;
import org.apache.sling.api.resource.ValueMap;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.conf.Configuration;
import twitter4j.conf.ConfigurationBuilder;
import com.adobe.acs.commons.twitter.TwitterClient;
import com.day.cq.commons.inherit.HierarchyNodeInheritanceValueMap;
import com.day.cq.wcm.api.Page;
import com.day.cq.wcm.webservicesupport.ConfigurationConstants;
import com.day.cq.wcm.webservicesupport.ConfigurationManager;
@Component
@Service
@Properties({
@Property(name = AdapterFactory.ADAPTABLE_CLASSES, value = { "com.day.cq.wcm.api.Page",
"com.day.cq.wcm.webservicesupport.Configuration" }),
@Property(name = AdapterFactory.ADAPTER_CLASSES, value = { "twitter4j.Twitter",
"com.adobe.acs.commons.twitter.TwitterClient" }) })
public final class TwitterAdapterFactory implements AdapterFactory {
private static final String CLOUD_SERVICE_NAME = "twitterconnect";
private static final Logger log = LoggerFactory.getLogger(TwitterAdapterFactory.class);
@Reference
private ConfigurationManager configurationManager;
private TwitterFactory factory;
@SuppressWarnings("unchecked")
@Override
public <AdapterType> AdapterType getAdapter(Object adaptable, Class<AdapterType> type) {
TwitterClient client = null;
if (adaptable instanceof Page) {
client = createTwitterClient((Page) adaptable);
} else if (adaptable instanceof com.day.cq.wcm.webservicesupport.Configuration) {
client = createTwitterClient((com.day.cq.wcm.webservicesupport.Configuration) adaptable);
}
if (client != null) {
if (type == TwitterClient.class) {
return (AdapterType) client;
} else if (type == Twitter.class) {
return (AdapterType) client.getTwitter();
}
}
return null;
}
private Configuration buildConfiguration() {
final ConfigurationBuilder builder = new ConfigurationBuilder();
builder.setUseSSL(true);
builder.setApplicationOnlyAuthEnabled(true);
return builder.build();
}
private TwitterClient createTwitterClient(com.day.cq.wcm.webservicesupport.Configuration config) {
Resource oauthConfig = config.getContentResource().listChildren().next();
ValueMap oauthProps = ResourceUtil.getValueMap(oauthConfig);
String consumerKey = oauthProps.get("oauth.client.id", String.class);
String consumerSecret = oauthProps.get("oauth.client.secret", String.class);
if (consumerKey != null && consumerSecret != null) {
Twitter t = factory.getInstance();
log.debug("Creating client for key {}.", consumerKey);
t.setOAuthConsumer(consumerKey, consumerSecret);
try {
t.getOAuth2Token();
return new TwitterClientImpl(t, config);
} catch (TwitterException e) {
log.error("Unable to create Twitter client.", e);
return null;
}
} else {
log.warn("Key or Secret missing for configuration {}", config.getPath());
}
return null;
}
private TwitterClient createTwitterClient(Page page) {
com.day.cq.wcm.webservicesupport.Configuration config = findTwitterConfiguration(page);
if (config != null) {
return createTwitterClient(config);
}
return null;
}
private com.day.cq.wcm.webservicesupport.Configuration findTwitterConfiguration(Page page) {
final HierarchyNodeInheritanceValueMap pageProperties = new HierarchyNodeInheritanceValueMap(
page.getContentResource());
final String[] services = pageProperties.getInherited(ConfigurationConstants.PN_CONFIGURATIONS,
new String[0]);
final com.day.cq.wcm.webservicesupport.Configuration cfg = configurationManager.getConfiguration(
CLOUD_SERVICE_NAME, services);
return cfg;
}
@Activate
protected void activate() {
this.factory = new TwitterFactory(buildConfiguration());
}
}