Add some property into tag array.

apm-collector/apm-collector-ui/src/main/java/org/skywalking/apm/collector/ui/service/SpanService.java

@@ -6,12 +6,14 @@ import java.util.List;
 import org.skywalking.apm.collector.core.util.Const;
 import org.skywalking.apm.collector.core.util.StringUtils;
 import org.skywalking.apm.collector.storage.dao.DAOContainer;
+import org.skywalking.apm.collector.ui.cache.ApplicationCache;
 import org.skywalking.apm.collector.ui.cache.ServiceNameCache;
 import org.skywalking.apm.collector.ui.dao.ISegmentDAO;
 import org.skywalking.apm.network.proto.KeyWithStringValue;
 import org.skywalking.apm.network.proto.LogMessage;
 import org.skywalking.apm.network.proto.SpanObject;
 import org.skywalking.apm.network.proto.TraceSegmentObject;
+import org.skywalking.apm.network.trace.component.ComponentsDefine;
 
 /**
  * @author pengys5
@@ -31,8 +33,6 @@ public class SpanService {
                     String serviceName = ServiceNameCache.get(spanObject.getOperationNameId());
                     if (StringUtils.isNotEmpty(serviceName)) {
                         operationName = serviceName.split(Const.ID_SPLIT)[1];
-                    } else {
-                        operationName = Const.EMPTY_STRING;
                     }
                 }
                 spanJson.addProperty("operationName", operationName);
@@ -58,12 +58,42 @@ public class SpanService {
                 spanJson.add("logMessage", logsArray);
 
                 JsonArray tagsArray = new JsonArray();
+
+                JsonObject spanTypeJson = new JsonObject();
+                spanTypeJson.addProperty("key", "span type");
+                spanTypeJson.addProperty("value", spanObject.getSpanType().name());
+                tagsArray.add(spanTypeJson);
+
+                JsonObject componentJson = new JsonObject();
+                componentJson.addProperty("key", "component");
+                if (spanObject.getComponentId() == 0) {
+                    componentJson.addProperty("value", spanObject.getComponent());
+                } else {
+                    componentJson.addProperty("value", ComponentsDefine.getInstance().getComponentName(spanObject.getComponentId()));
+                }
+                tagsArray.add(componentJson);
+
+                JsonObject peerJson = new JsonObject();
+                peerJson.addProperty("key", "peer");
+                if (spanObject.getPeerId() == 0) {
+                    peerJson.addProperty("value", spanObject.getPeer());
+                } else {
+                    peerJson.addProperty("value", ApplicationCache.getForUI(spanObject.getPeerId()));
+                }
+                tagsArray.add(peerJson);
+
                 for (KeyWithStringValue tagValue : spanObject.getTagsList()) {
                     JsonObject tagJson = new JsonObject();
                     tagJson.addProperty("key", tagValue.getKey());
                     tagJson.addProperty("value", tagValue.getValue());
                     tagsArray.add(tagJson);
                 }
+
+                JsonObject isErrorJson = new JsonObject();
+                isErrorJson.addProperty("key", "is error");
+                isErrorJson.addProperty("value", spanObject.getIsError());
+                tagsArray.add(isErrorJson);
+
                 spanJson.add("tags", tagsArray);
             }
         }