Update the log viewer to understand the plugin entries

pkg/analysis_server/tool/instrumentation/page/log_page.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:math' as math;
 
 import '../log/log.dart';
 import '../server.dart';
 import 'page_writer.dart';
 
@@ skipping 27 matching lines @@
    * be written.
    */
   int pageLength = null;
 
   /**
    * The number of digits in the event stamps that are the same for every entry.
    */
   int prefixLength;
 
   /**
+   * A table mapping the ids of plugins to an index for the plugin.
+   */
+  Map<String, int> pluginIdMap = <String, int>{};
+
+  /**
    * Initialize a newly created writer to write the content of the given
    * [instrumentationLog].
    */
   LogPage(this.log);
 
+  /**
+   * Return the encoding for the given [pluginId] that is used to build anchors.
+   */
+  int getPluginId(String pluginId) {
+    return pluginIdMap.putIfAbsent(pluginId, () => pluginIdMap.length);
+  }
+
   @override
   void writeBody(StringSink sink) {
     entries = log.entriesInGroup(selectedGroup);
     prefixLength = computePrefixLength(entries);
 
     writeMenu(sink);
     writeTwoColumns(
         sink, 'leftColumn', _writeLeftColumn, 'rightColumn', _writeRightColumn);
   }
 
@@ skipping 103 matching lines @@
         if (pubStatus is Map) {
           if (pubStatus['isListingPackageDirs']) {
             description = '$description <span class="gray">(pub)</span>';
           } else {
             String duration = _getDuration(pairedEntry, entry);
             description =
                 '$description <span class="gray">(pub - $duration ms)</span>';
           }
         }
       }
+    } else if (entry is PluginRequestEntry) {
+      String entryId = entry.id;
+      int pluginId = getPluginId(entry.pluginId);
+      id = 'req$pluginId.$entryId';
+      clickHandler =
+          'highlight(\'req$pluginId.$entryId\', \'res$pluginId.$entryId\')';
+      icon = '&rarr;';
+      description = '${entry.method} (${entry.shortPluginId})';
+    } else if (entry is PluginResponseEntry) {
+      String entryId = entry.id;
+      int pluginId = getPluginId(entry.pluginId);
+      PluginRequestEntry request = log.pluginRequestFor(entry);
+      id = 'res$pluginId.$entryId';
+      clickHandler =
+          'highlight(\'req$pluginId.$entryId\', \'res$pluginId.$entryId\')';
+      icon = '&larr;';
+      if (request != null) {
+        int latency = entry.timeStamp - request.timeStamp;
+        description =
+            '${request.method} <span class="gray">($latency ms)</span> (${entry.shortPluginId})';
+      }
+    } else if (entry is PluginNotificationEntry) {
+      id = 'e${entry.index}';
+      LogEntry pairedEntry = log.pairedEntry(entry);
+      if (pairedEntry != null) {
+        String pairedId = 'e${pairedEntry.index}';
+        clickHandler = 'highlight(\'$id\', \'$pairedId\')';
+      }
+      icon = '&larr;';
+      description = '${entry.event} (${entry.shortPluginId})';
     } else if (entry is TaskEntry) {
       description = entry.description;
     } else if (entry is ErrorEntry) {
       description = '<span class="error">$description</span>';
+    } else if (entry is PluginErrorEntry) {
+      description =
+          '<span class="error">$description</span> (${entry.shortPluginId})';
     } else if (entry is ExceptionEntry) {
       description = '<span class="error">$description</span>';
     } else if (entry is MalformedLogEntry) {
       description = '<span class="error">$description</span>';
     }
     id = id == null ? '' : 'id="$id" ';
     clickHandler = '$clickHandler; setDetails(\'${escape(entry.details())}\')';
     String timeStamp = entry.timeStamp.toString();
     if (prefixLength > 0) {
       timeStamp = timeStamp.substring(prefixLength);
@@ skipping 87 matching lines @@
   void _writeRightColumn(StringSink sink) {
     //
     // Write the header of the column.
     //
     sink.writeln('<div class="columnHeader">');
     sink.writeln('<p><b>Entry Details</b></p>');
     sink.writeln('</div>');
     sink.writeln('<div id="details"></div>');
   }
 }