new resource GlusterServersResource and it's client

2 files changed, 173 insertions, 0 deletions

diff --git a/com.gluster.storage.management.client/src/com/gluster/storage/management/client/GlusterServersClient.java b/com.gluster.storage.management.client/src/com/gluster/storage/management/client/GlusterServersClient.java
new file mode 100644
index 00000000..fcc6f243
--- /dev/null
+++ b/com.gluster.storage.management.client/src/com/gluster/storage/management/client/GlusterServersClient.java
@@ -0,0 +1,61 @@
+/*******************************************************************************
+ * Copyright (c) 2011 Gluster, Inc. <http://www.gluster.com>
+ * This file is part of Gluster Management Console.
+ *
+ * Gluster Management Console is free software; you can redistribute it and/or 
+ * modify it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *  
+ * Gluster Management Console is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License
+ * for more details.
+ *  
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *******************************************************************************/
+package com.gluster.storage.management.client;
+
+import java.util.List;
+
+import com.gluster.storage.management.core.model.Server;
+import com.gluster.storage.management.core.model.ServerDetailsResponse;
+import com.gluster.storage.management.core.model.ServerListResponse;
+
+public class GlusterServersClient extends AbstractClient {
+	private static final String RESOURCE_NAME = "cluster/servers";
+
+	public GlusterServersClient(String serverName) {
+		super(serverName);
+	}
+
+	@Override
+	public String getResourceName() {
+		return RESOURCE_NAME;
+	}
+
+	public List<Server> getServers() {
+		@SuppressWarnings("unchecked")
+		ServerListResponse<Server> response = (ServerListResponse<Server>) fetchResource(ServerListResponse.class);
+		return response.getData();
+	}
+
+	public Server getServer(String serverName) {
+		@SuppressWarnings("unchecked")
+		ServerDetailsResponse<Server> response = (ServerDetailsResponse<Server>) fetchSubResource(serverName,
+				ServerDetailsResponse.class);
+		return response.getData();
+	}
+
+	public String getServerXML(String serverName) {
+		return ((String) fetchSubResource(serverName, String.class));
+	}
+
+	public static void main(String[] args) {
+		GlusterServersClient ServerResource = new GlusterServersClient("localhost");
+		List<Server> glusterServers = ServerResource.getServers();
+		System.out.println(glusterServers.size());
+	}
+}
diff --git a/com.gluster.storage.management.server/src/com/gluster/storage/management/server/resources/GlusterServersResource.java b/com.gluster.storage.management.server/src/com/gluster/storage/management/server/resources/GlusterServersResource.java
new file mode 100644
index 00000000..41efa9f1
--- /dev/null
+++ b/com.gluster.storage.management.server/src/com/gluster/storage/management/server/resources/GlusterServersResource.java
@@ -0,0 +1,112 @@
+/*******************************************************************************
+ * Copyright (c) 2011 Gluster, Inc. <http://www.gluster.com>
+ * This file is part of Gluster Management Console.
+ *
+ * Gluster Management Console is free software; you can redistribute it and/or 
+ * modify it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *  
+ * Gluster Management Console is distributed in the hope that it will be useful, 
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License
+ * for more details.
+ *  
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *******************************************************************************/
+package com.gluster.storage.management.server.resources;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+
+import org.springframework.stereotype.Component;
+
+import com.gluster.storage.management.client.GlusterServersClient;
+import com.gluster.storage.management.core.model.Server;
+import com.gluster.storage.management.core.model.ServerListResponse;
+import com.gluster.storage.management.core.model.Status;
+import com.gluster.storage.management.core.utils.ProcessResult;
+import com.gluster.storage.management.core.utils.ProcessUtil;
+import com.sun.jersey.spi.resource.Singleton;
+
+@Component
+@Singleton
+@Path("/cluster/servers")
+public class GlusterServersResource {
+	
+	public static final String HOSTNAMETAG = "hostname:";
+	
+	public List<String> getGlusterServerNames() {
+		ProcessResult result = new ProcessUtil().executeCommand("gluster-peer-status.py");
+		if (!result.isSuccess())
+			return null;
+
+		List<String> glusterServerNames = new ArrayList<String>();
+		// Parse the result to get the server names
+		for (String line : result.getOutput().split("\n")) {
+			if (line.toLowerCase().contains(HOSTNAMETAG)) {
+				for(String part : line.split(",")) {
+					if (part.toLowerCase().contains(HOSTNAMETAG)) {
+						glusterServerNames.add(part.split(HOSTNAMETAG)[1]);
+						break;
+					}
+				}
+			}
+		}
+		return glusterServerNames;
+	}
+	
+	private List<Server> getServerDetails() {
+		List<Server> glusterServers = new ArrayList<Server>();
+		List<String> serverNames = getGlusterServerNames();
+		for(String serverName : serverNames) {
+			GlusterServersClient client = new GlusterServersClient(serverName);
+			Server server = client.getServer("me");
+			glusterServers.add(server);
+		}
+		return glusterServers;
+	}
+	
+	@GET
+	@Produces(MediaType.TEXT_XML)
+	public ServerListResponse<Server> getServers() {
+		ServerListResponse<Server> response = new ServerListResponse<Server>();
+		response.setServers(getServerDetails());
+		response.setStatus(Status.STATUS_SUCCESS);
+		return response;
+	}
+
+	@GET
+	@Path("{serverName}")
+	@Produces(MediaType.TEXT_XML)
+	public String getGlusterServer(@PathParam("serverName") String serverName) {
+		if(serverName.equals("me")) {
+			return getThisServer();
+		}
+		
+		// Fetch details of given server by sending a REST request to that server
+		return new GlusterServersClient(serverName).getServerXML("me");
+	}
+	
+	public String getThisServer() {
+		ProcessResult result = new ProcessUtil().executeCommand("get-server-details.py");
+		if (!result.isSuccess()) {
+			// TODO:Generate error message and return
+		}
+		return result.getOutput();
+	}
+
+	
+	public static void main(String[] args) {
+		GlusterServersResource glusterServersResource = new GlusterServersResource();
+		System.out.println(glusterServersResource.getGlusterServerNames());
+	}
+}