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package org.openecomp.sdc.fe.impl;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpHead;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.openecomp.sdc.fe.config.ConfigurationManager;
import org.openecomp.sdc.fe.config.PluginsConfiguration;
import org.openecomp.sdc.fe.config.PluginsConfiguration.Plugin;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class PluginStatusBL {
private static final Logger log = LoggerFactory.getLogger(PluginStatusBL.class.getName());
private final Gson gson;
private final CloseableHttpClient client;
private final PluginsConfiguration pluginsConfiguration;
private Integer connectionTimeout;
private RequestConfig requestConfig;
public PluginStatusBL() {
this.pluginsConfiguration = ConfigurationManager.getConfigurationManager().getPluginsConfiguration();
this.client = HttpClients.createDefault();
this.gson = new GsonBuilder().setPrettyPrinting().create();
}
public PluginStatusBL(CloseableHttpClient client) {
this.pluginsConfiguration = ConfigurationManager.getConfigurationManager().getPluginsConfiguration();
this.client = client;
this.gson = new GsonBuilder().setPrettyPrinting().create();
}
public String checkPluginsListAvailability() {
String result = null;
if (pluginsConfiguration == null || pluginsConfiguration.getPluginsList() == null) {
log.warn("Configuration of type {} was not found", PluginsConfiguration.class);
} else {
log.debug("The value returned from getConfig is {}", pluginsConfiguration);
connectionTimeout = pluginsConfiguration.getConnectionTimeout();
this.requestConfig = RequestConfig.custom()
.setSocketTimeout(connectionTimeout)
.setConnectTimeout(connectionTimeout)
.setConnectionRequestTimeout(connectionTimeout).build();
List<Plugin> availablePluginsList = new ArrayList<>();
pluginsConfiguration.getPluginsList().forEach(plugin -> {
plugin.setOnline(checkPluginAvailability(plugin));
availablePluginsList.add(plugin);
});
result = gson.toJson(availablePluginsList);
}
return result;
}
private boolean checkPluginAvailability(Plugin plugin) {
boolean result = false;
log.debug("sending head request to id:{} url:{}",plugin.getPluginId(),plugin.getPluginDiscoveryUrl());
HttpHead head = new HttpHead(plugin.getPluginDiscoveryUrl());
head.setConfig(this.requestConfig);
try (CloseableHttpResponse response = this.client.execute(head)) {
result = response != null && response.getStatusLine().getStatusCode() == 200;
log.debug("The plugin {} is {} with result {}",plugin.getPluginId(),( result ? "online" : "offline" ), result);
} catch (IOException e) {
log.debug("The plugin {} is offline", plugin.getPluginId());
log.debug("Exception:",e);
}
return result;
}
}
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