com.google.devtools.build.lib.events.StoredEventHandler.java Source code

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Here is the source code for com.google.devtools.build.lib.events.StoredEventHandler.java

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// 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 EventHandler {

    private final List<Event> events = new ArrayList<>();
    private boolean hasErrors;

    public synchronized ImmutableList<Event> getEvents() {
        return ImmutableList.copyOf(events);
    }

    /** Returns true if there are no stored events. */
    public synchronized boolean isEmpty() {
        return events.isEmpty();
    }

    @Override
    public synchronized void handle(Event e) {
        hasErrors |= e.getKind() == EventKind.ERROR;
        events.add(e);
    }

    /**
     * Replay all events stored in this object on the given eventHandler, in the same order.
     */
    public synchronized void replayOn(EventHandler eventHandler) {
        Event.replayEventsOn(eventHandler, events);
    }

    /**
     * Returns whether any of the events on this objects were errors.
     */
    public synchronized boolean hasErrors() {
        return hasErrors;
    }

    public synchronized void clear() {
        events.clear();
        hasErrors = false;
    }
}