brianwilkerson@google.com
cd58e290c4
R=paulberry@google.com Review URL: https://codereview.chromium.org//969113002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@44151 260f80e4-7a28-3924-810f-c04153c831b5
1372 lines
44 KiB
Dart
1372 lines
44 KiB
Dart
// Copyright (c) 2014, 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.
|
|
|
|
library analysis.server;
|
|
|
|
import 'dart:async';
|
|
import 'dart:collection';
|
|
import 'dart:math' show max;
|
|
|
|
import 'package:analysis_server/src/analysis_logger.dart';
|
|
import 'package:analysis_server/src/channel/channel.dart';
|
|
import 'package:analysis_server/src/context_manager.dart';
|
|
import 'package:analysis_server/src/operation/operation.dart';
|
|
import 'package:analysis_server/src/operation/operation_analysis.dart';
|
|
import 'package:analysis_server/src/operation/operation_queue.dart';
|
|
import 'package:analysis_server/src/protocol.dart' hide Element;
|
|
import 'package:analysis_server/src/services/correction/namespace.dart';
|
|
import 'package:analysis_server/src/services/index/index.dart';
|
|
import 'package:analysis_server/src/services/search/search_engine.dart';
|
|
import 'package:analyzer/file_system/file_system.dart';
|
|
import 'package:analyzer/instrumentation/instrumentation.dart';
|
|
import 'package:analyzer/source/package_map_provider.dart';
|
|
import 'package:analyzer/src/generated/ast.dart';
|
|
import 'package:analyzer/src/generated/element.dart';
|
|
import 'package:analyzer/src/generated/engine.dart';
|
|
import 'package:analyzer/src/generated/java_engine.dart';
|
|
import 'package:analyzer/src/generated/sdk.dart';
|
|
import 'package:analyzer/src/generated/source.dart';
|
|
import 'package:analyzer/src/generated/source_io.dart';
|
|
import 'package:analyzer/src/generated/utilities_general.dart';
|
|
|
|
typedef void OptionUpdater(AnalysisOptionsImpl options);
|
|
|
|
/**
|
|
* Enum representing reasons why analysis might be done for a given file.
|
|
*/
|
|
class AnalysisDoneReason {
|
|
/**
|
|
* Analysis of the file completed successfully.
|
|
*/
|
|
static const AnalysisDoneReason COMPLETE =
|
|
const AnalysisDoneReason._('COMPLETE');
|
|
|
|
/**
|
|
* Analysis of the file was aborted because the context was removed.
|
|
*/
|
|
static const AnalysisDoneReason CONTEXT_REMOVED =
|
|
const AnalysisDoneReason._('CONTEXT_REMOVED');
|
|
|
|
/**
|
|
* Textual description of this [AnalysisDoneReason].
|
|
*/
|
|
final String text;
|
|
|
|
const AnalysisDoneReason._(this.text);
|
|
}
|
|
|
|
/**
|
|
* Instances of the class [AnalysisServer] implement a server that listens on a
|
|
* [CommunicationChannel] for analysis requests and process them.
|
|
*/
|
|
class AnalysisServer {
|
|
/**
|
|
* The version of the analysis server. The value should be replaced
|
|
* automatically during the build.
|
|
*/
|
|
static final String VERSION = '1.3.0';
|
|
|
|
/**
|
|
* The number of milliseconds to perform operations before inserting
|
|
* a 1 millisecond delay so that the VM and dart:io can deliver content
|
|
* to stdin. This should be removed once the underlying problem is fixed.
|
|
*/
|
|
static int performOperationDelayFreqency = 25;
|
|
|
|
/**
|
|
* The channel from which requests are received and to which responses should
|
|
* be sent.
|
|
*/
|
|
final ServerCommunicationChannel channel;
|
|
|
|
/**
|
|
* The [ResourceProvider] using which paths are converted into [Resource]s.
|
|
*/
|
|
final ResourceProvider resourceProvider;
|
|
|
|
/**
|
|
* The [Index] for this server, may be `null` if indexing is disabled.
|
|
*/
|
|
final Index index;
|
|
|
|
/**
|
|
* The [SearchEngine] for this server, may be `null` if indexing is disabled.
|
|
*/
|
|
final SearchEngine searchEngine;
|
|
|
|
/**
|
|
* [ContextManager] which handles the mapping from analysis roots
|
|
* to context directories.
|
|
*/
|
|
ServerContextManager contextDirectoryManager;
|
|
|
|
/**
|
|
* A flag indicating whether the server is running. When false, contexts
|
|
* will no longer be added to [contextWorkQueue], and [performOperation] will
|
|
* discard any tasks it finds on [contextWorkQueue].
|
|
*/
|
|
bool running;
|
|
|
|
/**
|
|
* A flag indicating the value of the 'analyzing' parameter sent in the last
|
|
* status message to the client.
|
|
*/
|
|
bool statusAnalyzing = false;
|
|
|
|
/**
|
|
* A list of the request handlers used to handle the requests sent to this
|
|
* server.
|
|
*/
|
|
List<RequestHandler> handlers;
|
|
|
|
/**
|
|
* The current default [DartSdk].
|
|
*/
|
|
final DartSdk defaultSdk;
|
|
|
|
/**
|
|
* The instrumentation service that is to be used by this analysis server.
|
|
*/
|
|
final InstrumentationService instrumentationService;
|
|
|
|
/**
|
|
* A table mapping [Folder]s to the [AnalysisContext]s associated with them.
|
|
*/
|
|
final Map<Folder, AnalysisContext> folderMap =
|
|
new HashMap<Folder, AnalysisContext>();
|
|
|
|
/**
|
|
* A queue of the operations to perform in this server.
|
|
*/
|
|
ServerOperationQueue operationQueue;
|
|
|
|
/**
|
|
* True if there is a pending future which will execute [performOperation].
|
|
*/
|
|
bool performOperationPending = false;
|
|
|
|
/**
|
|
* A set of the [ServerService]s to send notifications for.
|
|
*/
|
|
Set<ServerService> serverServices = new HashSet<ServerService>();
|
|
|
|
/**
|
|
* A table mapping [AnalysisService]s to the file paths for which these
|
|
* notifications should be sent.
|
|
*/
|
|
Map<AnalysisService, Set<String>> analysisServices =
|
|
new HashMap<AnalysisService, Set<String>>();
|
|
|
|
/**
|
|
* A table mapping [AnalysisContext]s to the completers that should be
|
|
* completed when analysis of this context is finished.
|
|
*/
|
|
Map<AnalysisContext, Completer<AnalysisDoneReason>> contextAnalysisDoneCompleters =
|
|
new HashMap<AnalysisContext, Completer<AnalysisDoneReason>>();
|
|
|
|
/**
|
|
* Performance information before initial analysis is complete.
|
|
*/
|
|
ServerPerformance performanceDuringStartup = new ServerPerformance();
|
|
|
|
/**
|
|
* Performance information after initial analysis is complete
|
|
* or `null` if the initial analysis is not yet complete
|
|
*/
|
|
ServerPerformance performanceAfterStartup;
|
|
|
|
/**
|
|
* The class into which performance information is currently being recorded.
|
|
* During startup, this will be the same as [performanceDuringStartup]
|
|
* and after startup is complete, this switches to [performanceAfterStartup].
|
|
*/
|
|
ServerPerformance _performance;
|
|
|
|
/**
|
|
* The option possibly set from the server initialization which disables error notifications.
|
|
*/
|
|
bool _noErrorNotification;
|
|
|
|
/**
|
|
* The [Completer] that completes when analysis is complete.
|
|
*/
|
|
Completer _onAnalysisCompleteCompleter;
|
|
|
|
/**
|
|
* The [Completer] that completes when the next operation is performed.
|
|
*/
|
|
Completer _test_onOperationPerformedCompleter;
|
|
|
|
/**
|
|
* The controller that is notified when analysis is started.
|
|
*/
|
|
StreamController<AnalysisContext> _onAnalysisStartedController;
|
|
|
|
/**
|
|
* The controller that is notified when a single file has been analyzed.
|
|
*/
|
|
StreamController<ChangeNotice> _onFileAnalyzedController;
|
|
|
|
/**
|
|
* The controller used to notify others when priority sources change.
|
|
*/
|
|
StreamController<PriorityChangeEvent> _onPriorityChangeController;
|
|
|
|
/**
|
|
* True if any exceptions thrown by analysis should be propagated up the call
|
|
* stack.
|
|
*/
|
|
bool rethrowExceptions;
|
|
|
|
/**
|
|
* The next time (milliseconds since epoch) after which the analysis server
|
|
* should pause so that pending requests can be fetched by the system.
|
|
*/
|
|
// Add 1 sec to prevent delay from impacting short running tests
|
|
int _nextPerformOperationDelayTime =
|
|
new DateTime.now().millisecondsSinceEpoch + 1000;
|
|
|
|
/**
|
|
* The current state of overlays from the client. This is used as the
|
|
* content cache for all contexts.
|
|
*/
|
|
final ContentCache overlayState = new ContentCache();
|
|
|
|
/**
|
|
* Initialize a newly created server to receive requests from and send
|
|
* responses to the given [channel].
|
|
*
|
|
* If [rethrowExceptions] is true, then any exceptions thrown by analysis are
|
|
* propagated up the call stack. The default is true to allow analysis
|
|
* exceptions to show up in unit tests, but it should be set to false when
|
|
* running a full analysis server.
|
|
*/
|
|
AnalysisServer(this.channel, this.resourceProvider,
|
|
PackageMapProvider packageMapProvider, Index _index,
|
|
AnalysisServerOptions analysisServerOptions, this.defaultSdk,
|
|
this.instrumentationService, {this.rethrowExceptions: true})
|
|
: index = _index,
|
|
searchEngine = _index != null ? createSearchEngine(_index) : null {
|
|
_performance = performanceDuringStartup;
|
|
operationQueue = new ServerOperationQueue();
|
|
contextDirectoryManager = new ServerContextManager(
|
|
this, resourceProvider, packageMapProvider, instrumentationService);
|
|
contextDirectoryManager.defaultOptions.incremental = true;
|
|
contextDirectoryManager.defaultOptions.incrementalApi =
|
|
analysisServerOptions.enableIncrementalResolutionApi;
|
|
contextDirectoryManager.defaultOptions.incrementalValidation =
|
|
analysisServerOptions.enableIncrementalResolutionValidation;
|
|
_noErrorNotification = analysisServerOptions.noErrorNotification;
|
|
AnalysisEngine.instance.logger = new AnalysisLogger();
|
|
_onAnalysisStartedController = new StreamController.broadcast();
|
|
_onFileAnalyzedController = new StreamController.broadcast();
|
|
_onPriorityChangeController =
|
|
new StreamController<PriorityChangeEvent>.broadcast();
|
|
running = true;
|
|
onAnalysisStarted.first.then((_) {
|
|
onAnalysisComplete.then((_) {
|
|
performanceAfterStartup = new ServerPerformance();
|
|
_performance = performanceAfterStartup;
|
|
});
|
|
});
|
|
Notification notification =
|
|
new ServerConnectedParams(VERSION).toNotification();
|
|
channel.sendNotification(notification);
|
|
channel.listen(handleRequest, onDone: done, onError: error);
|
|
}
|
|
|
|
/**
|
|
* The [Future] that completes when analysis is complete.
|
|
*/
|
|
Future get onAnalysisComplete {
|
|
if (isAnalysisComplete()) {
|
|
return new Future.value();
|
|
}
|
|
if (_onAnalysisCompleteCompleter == null) {
|
|
_onAnalysisCompleteCompleter = new Completer();
|
|
}
|
|
return _onAnalysisCompleteCompleter.future;
|
|
}
|
|
|
|
/**
|
|
* The stream that is notified when analysis of a context is started.
|
|
*/
|
|
Stream<AnalysisContext> get onAnalysisStarted {
|
|
return _onAnalysisStartedController.stream;
|
|
}
|
|
|
|
/**
|
|
* The stream that is notified when contexts are added or removed.
|
|
*/
|
|
Stream<ContextsChangedEvent> get onContextsChanged =>
|
|
contextDirectoryManager.onContextsChanged;
|
|
|
|
/**
|
|
* The stream that is notified when a single file has been analyzed.
|
|
*/
|
|
Stream get onFileAnalyzed => _onFileAnalyzedController.stream;
|
|
|
|
/**
|
|
* The stream that is notified when priority sources change.
|
|
*/
|
|
Stream<PriorityChangeEvent> get onPriorityChange =>
|
|
_onPriorityChangeController.stream;
|
|
|
|
/**
|
|
* The [Future] that completes when the next operation is performed.
|
|
*/
|
|
Future get test_onOperationPerformed {
|
|
if (_test_onOperationPerformedCompleter == null) {
|
|
_test_onOperationPerformedCompleter = new Completer();
|
|
}
|
|
return _test_onOperationPerformedCompleter.future;
|
|
}
|
|
|
|
/**
|
|
* Adds the given [ServerOperation] to the queue, but does not schedule
|
|
* operations execution.
|
|
*/
|
|
void addOperation(ServerOperation operation) {
|
|
operationQueue.add(operation);
|
|
}
|
|
|
|
/**
|
|
* The socket from which requests are being read has been closed.
|
|
*/
|
|
void done() {
|
|
index.stop();
|
|
running = false;
|
|
}
|
|
|
|
/**
|
|
* There was an error related to the socket from which requests are being
|
|
* read.
|
|
*/
|
|
void error(argument) {
|
|
running = false;
|
|
}
|
|
|
|
/**
|
|
* If the given notice applies to a file contained within an analysis root,
|
|
* notify interested parties that the file has been (at least partially)
|
|
* analyzed.
|
|
*/
|
|
void fileAnalyzed(ChangeNotice notice) {
|
|
if (contextDirectoryManager.isInAnalysisRoot(notice.source.fullName)) {
|
|
_onFileAnalyzedController.add(notice);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return the preferred [AnalysisContext] for analyzing the given [path].
|
|
* This will be the context that explicitly contains the path, if any such
|
|
* context exists, otherwise it will be the first analysis context that
|
|
* implicitly analyzes it. Return `null` if no context is analyzing the
|
|
* path.
|
|
*/
|
|
AnalysisContext getAnalysisContext(String path) {
|
|
// try to find a containing context
|
|
Folder containingFolder = null;
|
|
for (Folder folder in folderMap.keys) {
|
|
if (folder.path == path || folder.contains(path)) {
|
|
if (containingFolder == null) {
|
|
containingFolder = folder;
|
|
} else if (containingFolder.path.length < folder.path.length) {
|
|
containingFolder = folder;
|
|
}
|
|
}
|
|
}
|
|
if (containingFolder != null) {
|
|
return folderMap[containingFolder];
|
|
}
|
|
Resource resource = resourceProvider.getResource(path);
|
|
if (resource is Folder) {
|
|
return null;
|
|
}
|
|
// check if there is a context that analyzed this source
|
|
return getAnalysisContextForSource(_getSourceWithoutContext(path));
|
|
}
|
|
|
|
/**
|
|
* Return any [AnalysisContext] that is analyzing the given [source], either
|
|
* explicitly or implicitly. Return `null` if there is no such context.
|
|
*/
|
|
AnalysisContext getAnalysisContextForSource(Source source) {
|
|
for (AnalysisContext context in folderMap.values) {
|
|
SourceKind kind = context.getKindOf(source);
|
|
if (kind != SourceKind.UNKNOWN) {
|
|
return context;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Return the [AnalysisContext]s that are being used to analyze the analysis
|
|
* roots.
|
|
*/
|
|
Iterable<AnalysisContext> getAnalysisContexts() {
|
|
return folderMap.values;
|
|
}
|
|
|
|
/**
|
|
* Returns [Element]s at the given [offset] of the given [file].
|
|
*
|
|
* May be empty if cannot be resolved, but not `null`.
|
|
*/
|
|
List<Element> getElementsAtOffset(String file, int offset) {
|
|
List<AstNode> nodes = getNodesAtOffset(file, offset);
|
|
return getElementsOfNodes(nodes, offset);
|
|
}
|
|
|
|
/**
|
|
* Returns [Element]s of the given [nodes].
|
|
*
|
|
* May be empty if not resolved, but not `null`.
|
|
*/
|
|
List<Element> getElementsOfNodes(List<AstNode> nodes, int offset) {
|
|
List<Element> elements = <Element>[];
|
|
for (AstNode node in nodes) {
|
|
if (node is SimpleIdentifier && node.parent is LibraryIdentifier) {
|
|
node = node.parent;
|
|
}
|
|
if (node is LibraryIdentifier) {
|
|
node = node.parent;
|
|
}
|
|
Element element = ElementLocator.locateWithOffset(node, offset);
|
|
if (node is SimpleIdentifier && element is PrefixElement) {
|
|
element = getImportElement(node);
|
|
}
|
|
if (element != null) {
|
|
elements.add(element);
|
|
}
|
|
}
|
|
return elements;
|
|
}
|
|
|
|
/**
|
|
* Return an analysis error info containing the array of all of the errors and
|
|
* the line info associated with [file].
|
|
*
|
|
* Returns `null` if [file] does not belong to any [AnalysisContext], or the
|
|
* file does not exist.
|
|
*
|
|
* The array of errors will be empty if there are no errors in [file]. The
|
|
* errors contained in the array can be incomplete.
|
|
*
|
|
* This method does not wait for all errors to be computed, and returns just
|
|
* the current state.
|
|
*/
|
|
AnalysisErrorInfo getErrors(String file) {
|
|
// prepare AnalysisContext
|
|
AnalysisContext context = getAnalysisContext(file);
|
|
if (context == null) {
|
|
return null;
|
|
}
|
|
// prepare Source
|
|
Source source = getSource(file);
|
|
if (context.getKindOf(source) == SourceKind.UNKNOWN) {
|
|
return null;
|
|
}
|
|
// get errors for the file
|
|
return context.getErrors(source);
|
|
}
|
|
|
|
/**
|
|
* Returns resolved [AstNode]s at the given [offset] of the given [file].
|
|
*
|
|
* May be empty, but not `null`.
|
|
*/
|
|
List<AstNode> getNodesAtOffset(String file, int offset) {
|
|
List<CompilationUnit> units = getResolvedCompilationUnits(file);
|
|
List<AstNode> nodes = <AstNode>[];
|
|
for (CompilationUnit unit in units) {
|
|
AstNode node = new NodeLocator.con1(offset).searchWithin(unit);
|
|
if (node != null) {
|
|
nodes.add(node);
|
|
}
|
|
}
|
|
return nodes;
|
|
}
|
|
|
|
// TODO(brianwilkerson) Add the following method after 'prioritySources' has
|
|
// been added to InternalAnalysisContext.
|
|
// /**
|
|
// * Return a list containing the full names of all of the sources that are
|
|
// * priority sources.
|
|
// */
|
|
// List<String> getPriorityFiles() {
|
|
// List<String> priorityFiles = new List<String>();
|
|
// folderMap.values.forEach((ContextDirectory directory) {
|
|
// InternalAnalysisContext context = directory.context;
|
|
// context.prioritySources.forEach((Source source) {
|
|
// priorityFiles.add(source.fullName);
|
|
// });
|
|
// });
|
|
// return priorityFiles;
|
|
// }
|
|
|
|
/**
|
|
* Returns resolved [CompilationUnit]s of the Dart file with the given [path].
|
|
*
|
|
* May be empty, but not `null`.
|
|
*/
|
|
List<CompilationUnit> getResolvedCompilationUnits(String path) {
|
|
List<CompilationUnit> units = <CompilationUnit>[];
|
|
// prepare AnalysisContext
|
|
AnalysisContext context = getAnalysisContext(path);
|
|
if (context == null) {
|
|
return units;
|
|
}
|
|
// add a unit for each unit/library combination
|
|
Source unitSource = getSource(path);
|
|
List<Source> librarySources = context.getLibrariesContaining(unitSource);
|
|
for (Source librarySource in librarySources) {
|
|
CompilationUnit unit =
|
|
context.resolveCompilationUnit2(unitSource, librarySource);
|
|
if (unit != null) {
|
|
units.add(unit);
|
|
}
|
|
}
|
|
// done
|
|
return units;
|
|
}
|
|
|
|
/**
|
|
* Returns the [CompilationUnit] of the Dart file with the given [path] that
|
|
* should be used to resend notifications for already resolved unit.
|
|
* Returns `null` if the file is not a part of any context, library has not
|
|
* been yet resolved, or any problem happened.
|
|
*/
|
|
CompilationUnit getResolvedCompilationUnitToResendNotification(String path) {
|
|
// prepare AnalysisContext
|
|
AnalysisContext context = getAnalysisContext(path);
|
|
if (context == null) {
|
|
return null;
|
|
}
|
|
// prepare sources
|
|
Source unitSource = getSource(path);
|
|
List<Source> librarySources = context.getLibrariesContaining(unitSource);
|
|
if (librarySources.isEmpty) {
|
|
return null;
|
|
}
|
|
// if library has not been resolved yet, the unit will be resolved later
|
|
Source librarySource = librarySources[0];
|
|
if (context.getLibraryElement(librarySource) == null) {
|
|
return null;
|
|
}
|
|
// if library has been already resolved, resolve unit
|
|
return context.resolveCompilationUnit2(unitSource, librarySource);
|
|
}
|
|
|
|
/**
|
|
* Return the [Source] of the Dart file with the given [path].
|
|
*/
|
|
Source getSource(String path) {
|
|
// try SDK
|
|
{
|
|
Uri uri = resourceProvider.pathContext.toUri(path);
|
|
Source sdkSource = defaultSdk.fromFileUri(uri);
|
|
if (sdkSource != null) {
|
|
return sdkSource;
|
|
}
|
|
}
|
|
// file-based source
|
|
File file = resourceProvider.getResource(path);
|
|
return ContextManager.createSourceInContext(getAnalysisContext(path), file);
|
|
}
|
|
|
|
/**
|
|
* Handle a [request] that was read from the communication channel.
|
|
*/
|
|
void handleRequest(Request request) {
|
|
_performance.logRequest(request);
|
|
runZoned(() {
|
|
ServerPerformanceStatistics.serverRequests.makeCurrentWhile(() {
|
|
int count = handlers.length;
|
|
for (int i = 0; i < count; i++) {
|
|
try {
|
|
Response response = handlers[i].handleRequest(request);
|
|
if (response == Response.DELAYED_RESPONSE) {
|
|
return;
|
|
}
|
|
if (response != null) {
|
|
channel.sendResponse(response);
|
|
return;
|
|
}
|
|
} on RequestFailure catch (exception) {
|
|
channel.sendResponse(exception.response);
|
|
return;
|
|
} catch (exception, stackTrace) {
|
|
RequestError error = new RequestError(
|
|
RequestErrorCode.SERVER_ERROR, exception.toString());
|
|
if (stackTrace != null) {
|
|
error.stackTrace = stackTrace.toString();
|
|
}
|
|
Response response = new Response(request.id, error: error);
|
|
channel.sendResponse(response);
|
|
return;
|
|
}
|
|
}
|
|
channel.sendResponse(new Response.unknownRequest(request));
|
|
});
|
|
}, onError: (exception, stackTrace) {
|
|
sendServerErrorNotification(exception, stackTrace, fatal: true);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Returns `true` if there is a subscription for the given [service] and
|
|
* [file].
|
|
*/
|
|
bool hasAnalysisSubscription(AnalysisService service, String file) {
|
|
Set<String> files = analysisServices[service];
|
|
return files != null && files.contains(file);
|
|
}
|
|
|
|
/**
|
|
* Return `true` if analysis is complete.
|
|
*/
|
|
bool isAnalysisComplete() {
|
|
return operationQueue.isEmpty;
|
|
}
|
|
|
|
/**
|
|
* Returns a [Future] completing when [file] has been completely analyzed, in
|
|
* particular, all its errors have been computed. The future is completed
|
|
* with an [AnalysisDoneReason] indicating what caused the file's analysis to
|
|
* be considered complete.
|
|
*
|
|
* If the given file doesn't belong to any context, null is returned.
|
|
*
|
|
* TODO(scheglov) this method should be improved.
|
|
*
|
|
* 1. The analysis context should be told to analyze this particular file ASAP.
|
|
*
|
|
* 2. We should complete the future as soon as the file is analyzed (not wait
|
|
* until the context is completely finished)
|
|
*/
|
|
Future<AnalysisDoneReason> onFileAnalysisComplete(String file) {
|
|
// prepare AnalysisContext
|
|
AnalysisContext context = getAnalysisContext(file);
|
|
if (context == null) {
|
|
return null;
|
|
}
|
|
// schedule context analysis
|
|
schedulePerformAnalysisOperation(context);
|
|
// associate with the context completer
|
|
Completer<AnalysisDoneReason> completer =
|
|
contextAnalysisDoneCompleters[context];
|
|
if (completer == null) {
|
|
completer = new Completer<AnalysisDoneReason>();
|
|
contextAnalysisDoneCompleters[context] = completer;
|
|
}
|
|
return completer.future;
|
|
}
|
|
|
|
/**
|
|
* Perform the next available [ServerOperation].
|
|
*/
|
|
void performOperation() {
|
|
assert(performOperationPending);
|
|
PerformanceTag.UNKNOWN.makeCurrent();
|
|
performOperationPending = false;
|
|
if (!running) {
|
|
// An error has occurred, or the connection to the client has been
|
|
// closed, since this method was scheduled on the event queue. So
|
|
// don't do anything. Instead clear the operation queue.
|
|
operationQueue.clear();
|
|
return;
|
|
}
|
|
// prepare next operation
|
|
ServerOperation operation = operationQueue.take();
|
|
if (operation == null) {
|
|
// This can happen if the operation queue is cleared while the operation
|
|
// loop is in progress. No problem; we just need to exit the operation
|
|
// loop and wait for the next operation to be added.
|
|
ServerPerformanceStatistics.idle.makeCurrent();
|
|
return;
|
|
}
|
|
sendStatusNotification(operation);
|
|
// perform the operation
|
|
try {
|
|
operation.perform(this);
|
|
} catch (exception, stackTrace) {
|
|
AnalysisEngine.instance.logger.logError("${exception}\n${stackTrace}");
|
|
if (rethrowExceptions) {
|
|
throw new AnalysisException('Unexpected exception during analysis',
|
|
new CaughtException(exception, stackTrace));
|
|
}
|
|
sendServerErrorNotification(exception, stackTrace, fatal: true);
|
|
shutdown();
|
|
} finally {
|
|
if (_test_onOperationPerformedCompleter != null) {
|
|
_test_onOperationPerformedCompleter.complete(operation);
|
|
_test_onOperationPerformedCompleter = null;
|
|
}
|
|
if (!operationQueue.isEmpty) {
|
|
ServerPerformanceStatistics.intertask.makeCurrent();
|
|
_schedulePerformOperation();
|
|
} else {
|
|
sendStatusNotification(null);
|
|
if (_onAnalysisCompleteCompleter != null) {
|
|
_onAnalysisCompleteCompleter.complete();
|
|
_onAnalysisCompleteCompleter = null;
|
|
}
|
|
ServerPerformanceStatistics.idle.makeCurrent();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Trigger reanalysis of all files from disk.
|
|
*/
|
|
void reanalyze() {
|
|
// Clear any operations that are pending.
|
|
operationQueue.clear();
|
|
// Instruct the contextDirectoryManager to rebuild all contexts from
|
|
// scratch.
|
|
contextDirectoryManager.refresh();
|
|
}
|
|
|
|
/**
|
|
* Schedules execution of the given [ServerOperation].
|
|
*/
|
|
void scheduleOperation(ServerOperation operation) {
|
|
addOperation(operation);
|
|
_schedulePerformOperation();
|
|
}
|
|
|
|
/**
|
|
* Schedules analysis of the given context.
|
|
*/
|
|
void schedulePerformAnalysisOperation(AnalysisContext context) {
|
|
_onAnalysisStartedController.add(context);
|
|
scheduleOperation(new PerformAnalysisOperation(context, false));
|
|
}
|
|
|
|
/**
|
|
* This method is called when analysis of the given [AnalysisContext] is
|
|
* done.
|
|
*/
|
|
void sendContextAnalysisDoneNotifications(
|
|
AnalysisContext context, AnalysisDoneReason reason) {
|
|
Completer<AnalysisDoneReason> completer =
|
|
contextAnalysisDoneCompleters.remove(context);
|
|
if (completer != null) {
|
|
completer.complete(reason);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send the given [notification] to the client.
|
|
*/
|
|
void sendNotification(Notification notification) {
|
|
channel.sendNotification(notification);
|
|
}
|
|
|
|
/**
|
|
* Send the given [response] to the client.
|
|
*/
|
|
void sendResponse(Response response) {
|
|
channel.sendResponse(response);
|
|
}
|
|
|
|
/**
|
|
* Sends a `server.error` notification.
|
|
*/
|
|
void sendServerErrorNotification(exception, stackTrace, {bool fatal: false}) {
|
|
// prepare exception.toString()
|
|
String exceptionString;
|
|
if (exception != null) {
|
|
exceptionString = exception.toString();
|
|
} else {
|
|
exceptionString = 'null exception';
|
|
}
|
|
// prepare stackTrace.toString()
|
|
String stackTraceString;
|
|
if (stackTrace != null) {
|
|
stackTraceString = stackTrace.toString();
|
|
} else {
|
|
stackTraceString = 'null stackTrace';
|
|
}
|
|
// send the notification
|
|
channel.sendNotification(
|
|
new ServerErrorParams(fatal, exceptionString, stackTraceString)
|
|
.toNotification());
|
|
}
|
|
|
|
/**
|
|
* Send status notification to the client. The `operation` is the operation
|
|
* being performed or `null` if analysis is complete.
|
|
*/
|
|
void sendStatusNotification(ServerOperation operation) {
|
|
// Only send status when subscribed.
|
|
if (!serverServices.contains(ServerService.STATUS)) {
|
|
return;
|
|
}
|
|
// Only send status when it changes
|
|
bool isAnalyzing = operation != null;
|
|
if (statusAnalyzing == isAnalyzing) {
|
|
return;
|
|
}
|
|
statusAnalyzing = isAnalyzing;
|
|
AnalysisStatus analysis = new AnalysisStatus(isAnalyzing);
|
|
channel.sendNotification(
|
|
new ServerStatusParams(analysis: analysis).toNotification());
|
|
}
|
|
|
|
/**
|
|
* Implementation for `analysis.setAnalysisRoots`.
|
|
*
|
|
* TODO(scheglov) implement complete projects/contexts semantics.
|
|
*
|
|
* The current implementation is intentionally simplified and expected
|
|
* that only folders are given each given folder corresponds to the exactly
|
|
* one context.
|
|
*
|
|
* So, we can start working in parallel on adding services and improving
|
|
* projects/contexts support.
|
|
*/
|
|
void setAnalysisRoots(String requestId, List<String> includedPaths,
|
|
List<String> excludedPaths, Map<String, String> packageRoots) {
|
|
try {
|
|
contextDirectoryManager.setRoots(
|
|
includedPaths, excludedPaths, packageRoots);
|
|
} on UnimplementedError catch (e) {
|
|
throw new RequestFailure(
|
|
new Response.unsupportedFeature(requestId, e.message));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation for `analysis.setSubscriptions`.
|
|
*/
|
|
void setAnalysisSubscriptions(
|
|
Map<AnalysisService, Set<String>> subscriptions) {
|
|
// send notifications for already analyzed sources
|
|
subscriptions.forEach((service, Set<String> newFiles) {
|
|
Set<String> oldFiles = analysisServices[service];
|
|
Set<String> todoFiles =
|
|
oldFiles != null ? newFiles.difference(oldFiles) : newFiles;
|
|
for (String file in todoFiles) {
|
|
Source source = getSource(file);
|
|
// prepare context
|
|
AnalysisContext context = getAnalysisContext(file);
|
|
if (context == null) {
|
|
continue;
|
|
}
|
|
// Dart unit notifications.
|
|
if (AnalysisEngine.isDartFileName(file)) {
|
|
CompilationUnit dartUnit =
|
|
getResolvedCompilationUnitToResendNotification(file);
|
|
if (dartUnit != null) {
|
|
switch (service) {
|
|
case AnalysisService.HIGHLIGHTS:
|
|
sendAnalysisNotificationHighlights(this, file, dartUnit);
|
|
break;
|
|
case AnalysisService.NAVIGATION:
|
|
// TODO(scheglov) consider support for one unit in 2+ libraries
|
|
sendAnalysisNotificationNavigation(this, file, dartUnit);
|
|
break;
|
|
case AnalysisService.OCCURRENCES:
|
|
sendAnalysisNotificationOccurrences(this, file, dartUnit);
|
|
break;
|
|
case AnalysisService.OUTLINE:
|
|
LineInfo lineInfo = context.getLineInfo(source);
|
|
sendAnalysisNotificationOutline(this, file, lineInfo, dartUnit);
|
|
break;
|
|
case AnalysisService.OVERRIDES:
|
|
sendAnalysisNotificationOverrides(this, file, dartUnit);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|
|
// remember new subscriptions
|
|
this.analysisServices = subscriptions;
|
|
}
|
|
|
|
/**
|
|
* Set the priority files to the given [files].
|
|
*/
|
|
void setPriorityFiles(String requestId, List<String> files) {
|
|
// Note: when a file is a priority file, that information needs to be
|
|
// propagated to all contexts that analyze the file, so that all contexts
|
|
// will be able to do incremental resolution of the file. See
|
|
// dartbug.com/22209.
|
|
Map<AnalysisContext, List<Source>> sourceMap =
|
|
new HashMap<AnalysisContext, List<Source>>();
|
|
List<String> unanalyzed = new List<String>();
|
|
files.forEach((file) {
|
|
AnalysisContext preferredContext = getAnalysisContext(file);
|
|
Source source = getSource(file);
|
|
bool contextFound = false;
|
|
for (AnalysisContext context in folderMap.values) {
|
|
if (context == preferredContext ||
|
|
context.getKindOf(source) != SourceKind.UNKNOWN) {
|
|
sourceMap.putIfAbsent(context, () => <Source>[]).add(source);
|
|
contextFound = true;
|
|
}
|
|
}
|
|
if (!contextFound) {
|
|
unanalyzed.add(file);
|
|
}
|
|
});
|
|
if (unanalyzed.isNotEmpty) {
|
|
StringBuffer buffer = new StringBuffer();
|
|
buffer.writeAll(unanalyzed, ', ');
|
|
throw new RequestFailure(
|
|
new Response.unanalyzedPriorityFiles(requestId, buffer.toString()));
|
|
}
|
|
folderMap.forEach((Folder folder, AnalysisContext context) {
|
|
List<Source> sourceList = sourceMap[context];
|
|
if (sourceList == null) {
|
|
sourceList = Source.EMPTY_ARRAY;
|
|
}
|
|
context.analysisPriorityOrder = sourceList;
|
|
// Schedule the context for analysis so that it has the opportunity to
|
|
// cache the AST's for the priority sources as soon as possible.
|
|
schedulePerformAnalysisOperation(context);
|
|
});
|
|
operationQueue.reschedule();
|
|
Source firstSource = files.length > 0 ? getSource(files[0]) : null;
|
|
_onPriorityChangeController.add(new PriorityChangeEvent(firstSource));
|
|
}
|
|
|
|
/**
|
|
* Returns `true` if errors should be reported for [file] with the given
|
|
* absolute path.
|
|
*/
|
|
bool shouldSendErrorsNotificationFor(String file) {
|
|
return !_noErrorNotification &&
|
|
contextDirectoryManager.isInAnalysisRoot(file);
|
|
}
|
|
|
|
void shutdown() {
|
|
running = false;
|
|
if (index != null) {
|
|
index.clear();
|
|
index.stop();
|
|
}
|
|
// Defer closing the channel and shutting down the instrumentation server so
|
|
// that the shutdown response can be sent and logged.
|
|
new Future(() {
|
|
instrumentationService.shutdown();
|
|
channel.close();
|
|
});
|
|
}
|
|
|
|
void test_flushResolvedUnit(String file) {
|
|
if (AnalysisEngine.isDartFileName(file)) {
|
|
AnalysisContextImpl context = getAnalysisContext(file);
|
|
Source source = getSource(file);
|
|
DartEntry dartEntry = context.getReadableSourceEntryOrNull(source);
|
|
dartEntry.flushAstStructures();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Performs all scheduled analysis operations.
|
|
*/
|
|
void test_performAllAnalysisOperations() {
|
|
while (true) {
|
|
ServerOperation operation = operationQueue.takeIf((operation) {
|
|
return operation is PerformAnalysisOperation;
|
|
});
|
|
if (operation == null) {
|
|
break;
|
|
}
|
|
operation.perform(this);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation for `analysis.updateContent`.
|
|
*/
|
|
void updateContent(String id, Map<String, dynamic> changes) {
|
|
changes.forEach((file, change) {
|
|
Source source = getSource(file);
|
|
operationQueue.sourceAboutToChange(source);
|
|
// Prepare the new contents.
|
|
String oldContents = overlayState.getContents(source);
|
|
String newContents;
|
|
if (change is AddContentOverlay) {
|
|
newContents = change.content;
|
|
} else if (change is ChangeContentOverlay) {
|
|
if (oldContents == null) {
|
|
// The client may only send a ChangeContentOverlay if there is
|
|
// already an existing overlay for the source.
|
|
throw new RequestFailure(new Response(id,
|
|
error: new RequestError(RequestErrorCode.INVALID_OVERLAY_CHANGE,
|
|
'Invalid overlay change')));
|
|
}
|
|
try {
|
|
newContents = SourceEdit.applySequence(oldContents, change.edits);
|
|
} on RangeError {
|
|
throw new RequestFailure(new Response(id,
|
|
error: new RequestError(RequestErrorCode.INVALID_OVERLAY_CHANGE,
|
|
'Invalid overlay change')));
|
|
}
|
|
} else if (change is RemoveContentOverlay) {
|
|
newContents = null;
|
|
} else {
|
|
// Protocol parsing should have ensured that we never get here.
|
|
throw new AnalysisException('Illegal change type');
|
|
}
|
|
overlayState.setContents(source, newContents);
|
|
// Update all contexts.
|
|
for (InternalAnalysisContext context in folderMap.values) {
|
|
if (context.handleContentsChanged(
|
|
source, oldContents, newContents, true)) {
|
|
schedulePerformAnalysisOperation(context);
|
|
} else {
|
|
// When the client sends any change for a source, we should resend
|
|
// subscribed notifications, even if there were no changes in the
|
|
// source contents.
|
|
// TODO(scheglov) consider checking if there are subscriptions.
|
|
if (AnalysisEngine.isDartFileName(file)) {
|
|
List<CompilationUnit> dartUnits =
|
|
context.ensureResolvedDartUnits(source);
|
|
if (dartUnits != null) {
|
|
AnalysisErrorInfo errorInfo = context.getErrors(source);
|
|
for (var dartUnit in dartUnits) {
|
|
scheduleNotificationOperations(this, file, errorInfo.lineInfo,
|
|
context, null, dartUnit, errorInfo.errors);
|
|
scheduleIndexOperation(this, file, context, dartUnit);
|
|
}
|
|
} else {
|
|
schedulePerformAnalysisOperation(context);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Use the given updaters to update the values of the options in every
|
|
* existing analysis context.
|
|
*/
|
|
void updateOptions(List<OptionUpdater> optionUpdaters) {
|
|
//
|
|
// Update existing contexts.
|
|
//
|
|
folderMap.forEach((Folder folder, AnalysisContext context) {
|
|
AnalysisOptionsImpl options =
|
|
new AnalysisOptionsImpl.con1(context.analysisOptions);
|
|
optionUpdaters.forEach((OptionUpdater optionUpdater) {
|
|
optionUpdater(options);
|
|
});
|
|
context.analysisOptions = options;
|
|
});
|
|
//
|
|
// Update the defaults used to create new contexts.
|
|
//
|
|
AnalysisOptionsImpl options = contextDirectoryManager.defaultOptions;
|
|
optionUpdaters.forEach((OptionUpdater optionUpdater) {
|
|
optionUpdater(options);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Return the [Source] of the Dart file with the given [path], assuming that
|
|
* we do not know the context in which the path should be interpreted.
|
|
*/
|
|
Source _getSourceWithoutContext(String path) {
|
|
// try SDK
|
|
{
|
|
Uri uri = resourceProvider.pathContext.toUri(path);
|
|
Source sdkSource = defaultSdk.fromFileUri(uri);
|
|
if (sdkSource != null) {
|
|
return sdkSource;
|
|
}
|
|
}
|
|
// file-based source
|
|
File file = resourceProvider.getResource(path);
|
|
return file.createSource();
|
|
}
|
|
|
|
/**
|
|
* Schedules [performOperation] exection.
|
|
*/
|
|
void _schedulePerformOperation() {
|
|
if (performOperationPending) {
|
|
return;
|
|
}
|
|
/*
|
|
* TODO (danrubel) Rip out this workaround once the underlying problem
|
|
* is fixed. Currently, the VM and dart:io do not deliver content
|
|
* on stdin in a timely manner if the event loop is busy.
|
|
* To work around this problem, we delay for 1 millisecond
|
|
* every 25 milliseconds.
|
|
*
|
|
* To disable this workaround and see the underlying problem,
|
|
* set performOperationDelayFreqency to zero
|
|
*/
|
|
int now = new DateTime.now().millisecondsSinceEpoch;
|
|
if (now > _nextPerformOperationDelayTime &&
|
|
performOperationDelayFreqency > 0) {
|
|
_nextPerformOperationDelayTime = now + performOperationDelayFreqency;
|
|
new Future.delayed(new Duration(milliseconds: 1), performOperation);
|
|
} else {
|
|
new Future(performOperation);
|
|
}
|
|
performOperationPending = true;
|
|
}
|
|
}
|
|
|
|
class AnalysisServerOptions {
|
|
bool enableIncrementalResolutionApi = false;
|
|
bool enableIncrementalResolutionValidation = false;
|
|
bool noErrorNotification = false;
|
|
bool noIndex = false;
|
|
String fileReadMode = 'as-is';
|
|
}
|
|
|
|
/**
|
|
* A [ContextsChangedEvent] indicate what contexts were added or removed.
|
|
*
|
|
* No context should be added to the event more than once. It does not make
|
|
* sense, for example, for a context to be both added and removed.
|
|
*/
|
|
class ContextsChangedEvent {
|
|
|
|
/**
|
|
* The contexts that were added to the server.
|
|
*/
|
|
final List<AnalysisContext> added;
|
|
|
|
/**
|
|
* The contexts that were changed.
|
|
*/
|
|
final List<AnalysisContext> changed;
|
|
|
|
/**
|
|
* The contexts that were removed from the server.
|
|
*/
|
|
final List<AnalysisContext> removed;
|
|
|
|
ContextsChangedEvent({this.added: AnalysisContext.EMPTY_LIST,
|
|
this.changed: AnalysisContext.EMPTY_LIST,
|
|
this.removed: AnalysisContext.EMPTY_LIST});
|
|
}
|
|
|
|
/**
|
|
* A [PriorityChangeEvent] indicates the set the priority files has changed.
|
|
*/
|
|
class PriorityChangeEvent {
|
|
final Source firstSource;
|
|
|
|
PriorityChangeEvent(this.firstSource);
|
|
}
|
|
|
|
class ServerContextManager extends ContextManager {
|
|
final AnalysisServer analysisServer;
|
|
|
|
/**
|
|
* The default options used to create new analysis contexts.
|
|
*/
|
|
AnalysisOptionsImpl defaultOptions = new AnalysisOptionsImpl();
|
|
|
|
/**
|
|
* The controller for sending [ContextsChangedEvent]s.
|
|
*/
|
|
StreamController<ContextsChangedEvent> _onContextsChangedController;
|
|
|
|
ServerContextManager(this.analysisServer, ResourceProvider resourceProvider,
|
|
PackageMapProvider packageMapProvider, InstrumentationService service)
|
|
: super(resourceProvider, packageMapProvider, service) {
|
|
_onContextsChangedController =
|
|
new StreamController<ContextsChangedEvent>.broadcast();
|
|
}
|
|
|
|
/**
|
|
* The stream that is notified when contexts are added or removed.
|
|
*/
|
|
Stream<ContextsChangedEvent> get onContextsChanged =>
|
|
_onContextsChangedController.stream;
|
|
|
|
@override
|
|
AnalysisContext addContext(Folder folder, UriResolver packageUriResolver) {
|
|
InternalAnalysisContext context =
|
|
AnalysisEngine.instance.createAnalysisContext();
|
|
context.contentCache = analysisServer.overlayState;
|
|
analysisServer.folderMap[folder] = context;
|
|
context.sourceFactory = _createSourceFactory(packageUriResolver);
|
|
context.analysisOptions = new AnalysisOptionsImpl.con1(defaultOptions);
|
|
_onContextsChangedController
|
|
.add(new ContextsChangedEvent(added: [context]));
|
|
analysisServer.schedulePerformAnalysisOperation(context);
|
|
return context;
|
|
}
|
|
|
|
@override
|
|
void applyChangesToContext(Folder contextFolder, ChangeSet changeSet) {
|
|
AnalysisContext context = analysisServer.folderMap[contextFolder];
|
|
if (context != null) {
|
|
context.applyChanges(changeSet);
|
|
analysisServer.schedulePerformAnalysisOperation(context);
|
|
}
|
|
}
|
|
|
|
@override
|
|
void beginComputePackageMap() {
|
|
_computingPackageMap(true);
|
|
}
|
|
|
|
@override
|
|
void endComputePackageMap() {
|
|
_computingPackageMap(false);
|
|
}
|
|
|
|
@override
|
|
void removeContext(Folder folder) {
|
|
AnalysisContext context = analysisServer.folderMap.remove(folder);
|
|
if (analysisServer.index != null) {
|
|
analysisServer.index.removeContext(context);
|
|
}
|
|
_onContextsChangedController
|
|
.add(new ContextsChangedEvent(removed: [context]));
|
|
analysisServer.sendContextAnalysisDoneNotifications(
|
|
context, AnalysisDoneReason.CONTEXT_REMOVED);
|
|
context.dispose();
|
|
}
|
|
|
|
@override
|
|
void updateContextPackageUriResolver(
|
|
Folder contextFolder, UriResolver packageUriResolver) {
|
|
AnalysisContext context = analysisServer.folderMap[contextFolder];
|
|
context.sourceFactory = _createSourceFactory(packageUriResolver);
|
|
_onContextsChangedController
|
|
.add(new ContextsChangedEvent(changed: [context]));
|
|
analysisServer.schedulePerformAnalysisOperation(context);
|
|
}
|
|
|
|
void _computingPackageMap(bool computing) {
|
|
if (analysisServer.serverServices.contains(ServerService.STATUS)) {
|
|
PubStatus pubStatus = new PubStatus(computing);
|
|
ServerStatusParams params = new ServerStatusParams(pub: pubStatus);
|
|
analysisServer.sendNotification(params.toNotification());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set up a [SourceFactory] that resolves packages using the given
|
|
* [packageUriResolver].
|
|
*/
|
|
SourceFactory _createSourceFactory(UriResolver packageUriResolver) {
|
|
UriResolver dartResolver = new DartUriResolver(analysisServer.defaultSdk);
|
|
UriResolver resourceResolver = new ResourceUriResolver(resourceProvider);
|
|
List<UriResolver> resolvers = packageUriResolver != null
|
|
? <UriResolver>[dartResolver, packageUriResolver, resourceResolver]
|
|
: <UriResolver>[dartResolver, resourceResolver];
|
|
return new SourceFactory(resolvers);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* A class used by [AnalysisServer] to record performance information
|
|
* such as request latency.
|
|
*/
|
|
class ServerPerformance {
|
|
|
|
/**
|
|
* The creation time and the time when performance information
|
|
* started to be recorded here.
|
|
*/
|
|
int startTime = new DateTime.now().millisecondsSinceEpoch;
|
|
|
|
/**
|
|
* The number of requests.
|
|
*/
|
|
int requestCount = 0;
|
|
|
|
/**
|
|
* The total latency (milliseconds) for all recorded requests.
|
|
*/
|
|
int requestLatency = 0;
|
|
|
|
/**
|
|
* The maximum latency (milliseconds) for all recorded requests.
|
|
*/
|
|
int maxLatency = 0;
|
|
|
|
/**
|
|
* The number of requests with latency > 150 milliseconds.
|
|
*/
|
|
int slowRequestCount = 0;
|
|
|
|
/**
|
|
* Log performation information about the given request.
|
|
*/
|
|
void logRequest(Request request) {
|
|
++requestCount;
|
|
if (request.clientRequestTime != null) {
|
|
int latency =
|
|
new DateTime.now().millisecondsSinceEpoch - request.clientRequestTime;
|
|
requestLatency += latency;
|
|
maxLatency = max(maxLatency, latency);
|
|
if (latency > 150) {
|
|
++slowRequestCount;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Container with global [AnalysisServer] performance statistics.
|
|
*/
|
|
class ServerPerformanceStatistics {
|
|
/**
|
|
* The [PerformanceTag] for time spent in [ExecutionDomainHandler].
|
|
*/
|
|
static PerformanceTag executionNotifications =
|
|
new PerformanceTag('executionNotifications');
|
|
|
|
/**
|
|
* The [PerformanceTag] for time spent performing a _DartIndexOperation.
|
|
*/
|
|
static PerformanceTag indexOperation = new PerformanceTag('indexOperation');
|
|
|
|
/**
|
|
* The [PerformanceTag] for time spent between calls to
|
|
* AnalysisServer.performOperation when the server is not idle.
|
|
*/
|
|
static PerformanceTag intertask = new PerformanceTag('intertask');
|
|
|
|
/**
|
|
* The [PerformanceTag] for time spent between calls to
|
|
* AnalysisServer.performOperation when the server is idle.
|
|
*/
|
|
static PerformanceTag idle = new PerformanceTag('idle');
|
|
|
|
/**
|
|
* The [PerformanceTag] for time spent in
|
|
* PerformAnalysisOperation._sendNotices.
|
|
*/
|
|
static PerformanceTag notices = new PerformanceTag('notices');
|
|
|
|
/**
|
|
* The [PerformanceTag] for time spent running pub.
|
|
*/
|
|
static PerformanceTag pub = new PerformanceTag('pub');
|
|
|
|
/**
|
|
* The [PerformanceTag] for time spent in server comminication channels.
|
|
*/
|
|
static PerformanceTag serverChannel = new PerformanceTag('serverChannel');
|
|
|
|
/**
|
|
* The [PerformanceTag] for time spent in server request handlers.
|
|
*/
|
|
static PerformanceTag serverRequests = new PerformanceTag('serverRequests');
|
|
|
|
/**
|
|
* The [PerformanceTag] for time spent in split store microtasks.
|
|
*/
|
|
static PerformanceTag splitStore = new PerformanceTag('splitStore');
|
|
}
|