1 files changed, 78 insertions, 0 deletions
diff --git a/catalog-fe/src/main/java/org/openecomp/sdc/fe/impl/PluginStatusBL.java b/catalog-fe/src/main/java/org/openecomp/sdc/fe/impl/PluginStatusBL.java
new file mode 100644
index 0000000000..dcd5eef491
--- /dev/null
+++ b/catalog-fe/src/main/java/org/openecomp/sdc/fe/impl/PluginStatusBL.java
@@ -0,0 +1,78 @@
+package org.openecomp.sdc.fe.impl;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+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 com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+
+public class PluginStatusBL {
+
+	private static Logger log = LoggerFactory.getLogger(PluginStatusBL.class.getName());
+	private static  Gson gson = new GsonBuilder().setPrettyPrinting().create();
+	private CloseableHttpClient client = null;
+	
+	public PluginStatusBL() {
+		this.client = HttpClients.createDefault();
+	}
+	
+	public PluginStatusBL(CloseableHttpClient client) {
+		this.client = client;
+				
+	}
+
+	public String checkPluginsListAvailability() {
+		String result = null;
+
+		PluginsConfiguration pluginsConfiguration = ConfigurationManager.getConfigurationManager()
+				.getPluginsConfiguration();
+
+		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);
+
+			List<Plugin> availablePluginsList = new ArrayList<>();
+
+			pluginsConfiguration.getPluginsList().forEach(value -> {
+				if (checkPluginAvailability(value)) {
+					availablePluginsList.add(value);
+				}
+
+			});
+			result = gson.toJson(availablePluginsList);
+		}
+		return result;
+	}
+
+	private boolean checkPluginAvailability(Plugin plugin) {
+
+		StringBuilder requestString = new StringBuilder();
+		boolean result = false;
+
+		requestString.append(plugin.getPluginProtocol()).append("://").append(plugin.getPluginHost()).append(":")
+				.append(plugin.getPluginPort()).append(plugin.getPluginPath());
+
+		HttpHead head = new HttpHead(requestString.toString());
+
+		try (CloseableHttpResponse response = this.client.execute(head)) {
+			result = response != null && response.getStatusLine().getStatusCode() == 200;
+		} catch (IOException e) {
+			log.debug("The plugin {} is offline", plugin);
+		}
+
+		return result;
+	}
+
+}