| // Copyright 2014 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| package com.google.devtools.build.lib.events; |
| |
| import com.google.common.collect.ImmutableList; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** Stores error and warning events, and later replays them. Thread-safe. */ |
| public class StoredEventHandler implements ExtendedEventHandler { |
| |
| private final List<Event> events = new ArrayList<>(); |
| private final List<ExtendedEventHandler.Postable> posts = new ArrayList<>(); |
| private boolean hasErrors; |
| |
| public synchronized ImmutableList<Event> getEvents() { |
| return ImmutableList.copyOf(events); |
| } |
| |
| public synchronized ImmutableList<ExtendedEventHandler.Postable> getPosts() { |
| return ImmutableList.copyOf(posts); |
| } |
| |
| /** Returns true if there are no stored events. */ |
| public synchronized boolean isEmpty() { |
| return events.isEmpty() && posts.isEmpty(); |
| } |
| |
| |
| @Override |
| public synchronized void handle(Event e) { |
| hasErrors |= e.getKind() == EventKind.ERROR; |
| events.add(e); |
| } |
| |
| @Override |
| public synchronized void post(ExtendedEventHandler.Postable e) { |
| posts.add(e); |
| } |
| |
| /** Replay all events stored in this object on the given eventHandler, in the same order. */ |
| public synchronized void replayOn(ExtendedEventHandler eventHandler) { |
| Event.replayEventsOn(eventHandler, events); |
| for (ExtendedEventHandler.Postable obj : posts) { |
| eventHandler.post(obj); |
| } |
| } |
| |
| /** |
| * Returns whether any of the events on this objects were errors. |
| */ |
| public synchronized boolean hasErrors() { |
| return hasErrors; |
| } |
| |
| public synchronized void clear() { |
| events.clear(); |
| posts.clear(); |
| hasErrors = false; |
| } |
| } |