OO-4785 Expand rest API BigBlueButton

.gitignore

@@ -38,3 +38,4 @@ src/test/java/org/olat/selenium/SeleniumTest.java
 
 **/*/.sass-cache
 
+/.sts4-cache

src/main/java/org/olat/restapi/system/BigBlueButtonWebService.java

+package org.olat.restapi.system;
+
+import java.util.List;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+import org.olat.core.CoreSpringFactory;
+import org.olat.modules.bigbluebutton.BigBlueButtonManager;
+import org.olat.modules.bigbluebutton.BigBlueButtonModule;
+import org.olat.modules.bigbluebutton.model.BigBlueButtonMeetingInfos;
+import org.olat.modules.bigbluebutton.model.BigBlueButtonServerInfos;
+import org.olat.restapi.system.vo.BigBlueButtonStatisticsVO;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+
+/**
+ * Initial Date:  2 jul. 2020 <br>
+ * @author mjenny, moritz.jenny@frentix.com, http://www.frentix.com
+ */
+
+public class BigBlueButtonWebService {
+	
+	/**
+	 * Return the statistics about Big Blue Button
+	 * 
+	 * @return The statistics about Big Blue Button
+	 */
+	@GET
+	@Operation(summary = "Return the statistics about Big Blue Button", description = "Return the statistics about Big Blue Button")
+	@ApiResponse(responseCode = "200", description = "Statistics about the Big Blue Button", content = {
+			@Content(mediaType = "application/json", schema = @Schema(implementation = BigBlueButtonStatisticsVO.class)),
+			@Content(mediaType = "application/xml", schema = @Schema(implementation = BigBlueButtonStatisticsVO.class)) })
+	@ApiResponse(responseCode = "401", description = "The roles of the authenticated user are not sufficient")
+	@Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
+	
+	public Response getStatistics() {
+		BigBlueButtonStatisticsVO stats = getBigBlueButtonStatistics();
+		return Response.ok(stats).build();
+	}		
+
+	private BigBlueButtonStatisticsVO getBigBlueButtonStatistics() {
+		BigBlueButtonStatisticsVO stats = new BigBlueButtonStatisticsVO();
+		BigBlueButtonModule bbbModule = CoreSpringFactory.getImpl(BigBlueButtonModule.class);		
+		if(bbbModule.isEnabled()) {
+			BigBlueButtonManager bbbManager = CoreSpringFactory.getImpl(BigBlueButtonManager.class);			
+			long sumAttendees = 0;
+			long sumMeetings = 0;	
+			long recordingCount = 0;
+			long videoCount = 0;
+			long capacity = 0;
+			List<BigBlueButtonServerInfos> bbbServerInfos = bbbManager.filterServersInfos(bbbManager.getServersInfos());
+			for (int i = 0; i < bbbServerInfos.size(); i++) {
+				List<BigBlueButtonMeetingInfos> bbbMeetingInfos = bbbServerInfos.get(i).getMeetingsInfos();			
+				for(int j = 0; j < bbbMeetingInfos.size(); j++) {
+					if(bbbMeetingInfos.get(j).isRunning()) {
+						sumMeetings += 1;	
+						videoCount += bbbMeetingInfos.get(j).getVideoCount();
+						capacity += bbbMeetingInfos.get(j).getMaxUsers();
+						sumAttendees += bbbMeetingInfos.get(j).getParticipantCount();
+						if(bbbMeetingInfos.get(j).isRecording()){
+							recordingCount += 1;
+						}						
+					}
+				}				
+			}					
+			stats.setMeetingsCount(sumMeetings);
+			stats.setAttendeesCount(sumAttendees);
+			stats.setRecordingCount(recordingCount);
+			stats.setVideoCount(videoCount);
+			stats.setCapacity(capacity);
+		}		
+		return stats;
+	}
+}

src/main/java/org/olat/restapi/system/MonitoringWebService.java

@@ -52,6 +52,7 @@ public class MonitoringWebService {
 	private static final ThreadsWebService threadsWebService = new ThreadsWebService();
 	private static final OpenOLATStatisticsWebService ooStatsWebService = new OpenOLATStatisticsWebService();
 	private static final VFSStatsWebService vfsStatsWebService = new VFSStatsWebService();
+	private static final BigBlueButtonWebService bigBlueButtonWebService = new BigBlueButtonWebService();
 	
 	public MonitoringWebService() {
 		//make Spring happy
@@ -92,6 +93,11 @@ public class MonitoringWebService {
 		return vfsStatsWebService;
 	}
 	
+	@Path("bigbluebutton")
+	public BigBlueButtonWebService getBigBlueButtonStatistics() {
+		return bigBlueButtonWebService;
+	}
+	
 	
 	
 	/**

src/main/java/org/olat/restapi/system/vo/BigBlueButtonStatisticsVO.java

+package org.olat.restapi.system.vo;
+
+import javax.xml.bind.annotation.XmlAccessType;
+import javax.xml.bind.annotation.XmlAccessorType;
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlAccessorType(XmlAccessType.FIELD)
+@XmlRootElement(name = "bigBlueButtonStatisticsVO")
+public class BigBlueButtonStatisticsVO {
+	
+	private long attendeeCount;
+	private long meetingCount;
+	private long recordingCount;
+	private long videoCount;
+	private long maximalUserCount;
+	
+	
+	public long getAttendeesCount() {
+		return attendeeCount;
+	}
+
+	public void setAttendeesCount(long attendees) {
+		this.attendeeCount = attendees;
+	}
+	
+	public long getMeetingsCount() {
+		return meetingCount;
+	}
+
+	public void setMeetingsCount(long meetings) {
+		this.meetingCount = meetings;
+	}
+	
+	public long getRecordingCount() {
+		return recordingCount;
+	}
+
+	public void setRecordingCount(long recordingCount) {
+		this.recordingCount = recordingCount;
+	}
+	
+	public long getVideoCount() {
+		return videoCount;
+	}
+	
+	public void setVideoCount(long videoCount) {
+		this.videoCount = videoCount;
+	}
+	
+	public long getCapacity() {
+		return maximalUserCount;
+	}
+	
+	public void setCapacity(long capacity) {
+		this.maximalUserCount = capacity;
+	}
+}