Add support for getting the sessionId from instrumentation and sending it to the client

R=scheglov@google.com

Review URL: https://codereview.chromium.org/2359233002 .

pkg/analysis_server/doc/api.html

@@ -356,6 +356,7 @@ a:focus, a:hover {
   "params": {
     "<b>version</b>": String
     "<b>pid</b>": int
+    "<b>sessionId</b>": <span style="color:#999999">optional</span> String
   }
 }</pre></div>
         <p>
@@ -375,6 +376,9 @@ a:focus, a:hover {
           </dd><dt class="field"><b>pid (int)</b></dt><dd>
            
            <p>The process id of the analysis server process.</p>
+         </dd><dt class="field"><b>sessionId (<span style="color:#999999">optional</span> String)</b></dt><dd>
+           
+           <p>The session id for this session.</p>
          </dd></dl></dd><dt class="notification"><a name="notification_server.error">server.error</a> (<a href="#notification_server.error">#</a>)</dt><dd><div class="box"><pre>notification: {
   "event": "server.error"
   "params": {

pkg/analysis_server/lib/plugin/protocol/generated_protocol.dart

@@ -267,6 +267,7 @@ class ServerSetSubscriptionsResult {
  * {
  *   "version": String
  *   "pid": int
+ *   "sessionId": optional String
  * }
  *
  * Clients may not extend, implement or mix-in this class.
@@ -276,6 +277,8 @@ class ServerConnectedParams implements HasToJson {
 
   int _pid;
 
+  String _sessionId;
+
   /**
    * The version number of the analysis server.
    */
@@ -302,9 +305,22 @@ class ServerConnectedParams implements HasToJson {
     this._pid = value;
   }
 
-  ServerConnectedParams(String version, int pid) {
+  /**
+   * The session id for this session.
+   */
+  String get sessionId => _sessionId;
+
+  /**
+   * The session id for this session.
+   */
+  void set sessionId(String value) {
+    this._sessionId = value;
+  }
+
+  ServerConnectedParams(String version, int pid, {String sessionId}) {
     this.version = version;
     this.pid = pid;
+    this.sessionId = sessionId;
   }
 
   factory ServerConnectedParams.fromJson(JsonDecoder jsonDecoder, String jsonPath, Object json) {
@@ -324,7 +340,11 @@ class ServerConnectedParams implements HasToJson {
       } else {
         throw jsonDecoder.missingKey(jsonPath, "pid");
       }
-      return new ServerConnectedParams(version, pid);
+      String sessionId;
+      if (json.containsKey("sessionId")) {
+        sessionId = jsonDecoder.decodeString(jsonPath + ".sessionId", json["sessionId"]);
+      }
+      return new ServerConnectedParams(version, pid, sessionId: sessionId);
     } else {
       throw jsonDecoder.mismatch(jsonPath, "server.connected params", json);
     }
@@ -339,6 +359,9 @@ class ServerConnectedParams implements HasToJson {
     Map<String, dynamic> result = {};
     result["version"] = version;
     result["pid"] = pid;
+    if (sessionId != null) {
+      result["sessionId"] = sessionId;
+    }
     return result;
   }
 
@@ -353,7 +376,8 @@ class ServerConnectedParams implements HasToJson {
   bool operator==(other) {
     if (other is ServerConnectedParams) {
       return version == other.version &&
-          pid == other.pid;
+          pid == other.pid &&
+          sessionId == other.sessionId;
     }
     return false;
   }
@@ -363,6 +387,7 @@ class ServerConnectedParams implements HasToJson {
     int hash = 0;
     hash = JenkinsSmiHash.combine(hash, version.hashCode);
     hash = JenkinsSmiHash.combine(hash, pid.hashCode);
+    hash = JenkinsSmiHash.combine(hash, sessionId.hashCode);
     return JenkinsSmiHash.finish(hash);
   }
 }

pkg/analysis_server/lib/src/analysis_server.dart

@@ -376,8 +376,9 @@ class AnalysisServer {
     _setupIndexInvalidation();
     pubSummaryManager =
         new PubSummaryManager(resourceProvider, '${io.pid}.temp');
-    Notification notification =
-        new ServerConnectedParams(VERSION, io.pid).toNotification();
+    Notification notification = new ServerConnectedParams(VERSION, io.pid,
+            sessionId: instrumentationService.sessionId)
+        .toNotification();
     channel.sendNotification(notification);
     channel.listen(handleRequest, onDone: done, onError: error);
     handlers = serverPlugin.createDomains(this);

pkg/analysis_server/test/integration/integration_test_methods.dart

@@ -92,6 +92,10 @@ abstract class IntegrationTestMixin {
    * pid (int)
    *
    *   The process id of the analysis server process.
+   *
+   * sessionId (optional String)
+   *
+   *   The session id for this session.
    */
   Stream<ServerConnectedParams> onServerConnected;
 

pkg/analysis_server/test/integration/protocol_matchers.dart

@@ -66,12 +66,15 @@ final Matcher isServerSetSubscriptionsResult = isNull;
  * {
  *   "version": String
  *   "pid": int
+ *   "sessionId": optional String
  * }
  */
 final Matcher isServerConnectedParams = new LazyMatcher(() => new MatchesJsonObject(
   "server.connected params", {
     "version": isString,
     "pid": isInt
+  }, optionalFields: {
+    "sessionId": isString
   }));
 
 /**

pkg/analysis_server/tool/spec/generate_files

@@ -32,27 +32,31 @@ SCRIPT_DIR="$(cd "${PROG_NAME%/*}" ; pwd -P)"
 
 ROOT_DIR="$(cd "${SCRIPT_DIR}/../../../.." ; pwd -P)"
 
-BIN_DIR="${ROOT_DIR}/sdk/bin"
-
-if [ -z "$DART_CONFIGURATION" ];
+if [[ $1 == '--arch' && $2 == 'x64' ]];
+then
+  DART_CONFIGURATION="ReleaseX64"
+elif [ -z "$DART_CONFIGURATION" ];
 then
   DART_CONFIGURATION="ReleaseIA32"
 fi
 
 if [[ `uname` == 'Darwin' ]];
 then
-  BUILD_DIR="${ROOT_DIR}/xcodebuild/$DART_CONFIGURATION"
-else
-  BUILD_DIR="${ROOT_DIR}/out/$DART_CONFIGURATION"
+  if [[ $GYP_GENERATORS == 'ninja' ]];
+  then
+    BUILD_DIR="${ROOT_DIR}/out/$DART_CONFIGURATION"
+  else
+    BUILD_DIR="${ROOT_DIR}/xcodebuild/$DART_CONFIGURATION"
+  fi
 fi
 
-PKG_DIR="${BUILD_DIR}/packages"
+PKG_FILE="${ROOT_DIR}/pkg/analysis_server/.packages"
 
-DART="${BIN_DIR}/dart"
+DART="${BUILD_DIR}/dart-sdk/bin/dart"
 
 declare -a VM_OPTIONS
 VM_OPTIONS+=("--checked")
-VM_OPTIONS+=("--package-root=${PKG_DIR}")
+VM_OPTIONS+=("--packages=${PKG_FILE}")
 
 cd "${SCRIPT_DIR}"
 "${DART}" "${VM_OPTIONS[@]}" "generate_all.dart"

pkg/analysis_server/tool/spec/spec_input.html

@@ -243,6 +243,10 @@
            <ref>int</ref>
            <p>The process id of the analysis server process.</p>
          </field>
+         <field name="sessionId" optional="true">
+           <ref>String</ref>
+           <p>The session id for this session.</p>
+         </field>
         </params>
       </notification>
       <notification event="error">

pkg/analyzer/lib/instrumentation/file_instrumentation.dart

@@ -20,6 +20,9 @@ class FileInstrumentationServer implements InstrumentationServer {
     _sink = file.openWrite();
   }
 
+  @override
+  String get sessionId => '';
+
   @override
   void log(String message) {
     _sink.writeln(message);

pkg/analyzer/lib/instrumentation/instrumentation.dart

@@ -22,6 +22,11 @@ class AnalysisPerformanceKind {
  * server.
  */
 abstract class InstrumentationServer {
+  /**
+   * Return the identifier used to identify the current session.
+   */
+  String get sessionId;
+
   /**
    * Pass the given [message] to the instrumentation server so that it will be
    * logged with other messages.
@@ -95,6 +100,11 @@ class InstrumentationService {
    */
   bool get isActive => _instrumentationServer != null;
 
+  /**
+   * Return the identifier used to identify the current session.
+   */
+  String get sessionId => _instrumentationServer?.sessionId ?? '';
+
   /**
    * The current time, expressed as a decimal encoded number of milliseconds.
    */
@@ -356,6 +366,9 @@ class MulticastInstrumentationServer implements InstrumentationServer {
 
   MulticastInstrumentationServer(this._servers);
 
+  @override
+  String get sessionId => _servers[0].sessionId;
+
   @override
   void log(String message) {
     for (InstrumentationServer server in _servers) {

pkg/analyzer/test/instrumentation/instrumentation_test.dart

@@ -164,6 +164,9 @@ class TestInstrumentationServer implements InstrumentationServer {
   StringBuffer normalChannel = new StringBuffer();
   StringBuffer priorityChannel = new StringBuffer();
 
+  @override
+  String get sessionId => '';
+
   @override
   void log(String message) {
     normalChannel.writeln(message);