org.graylog.plugins.views.search.export.AuditingMessagesExporter Maven / Gradle / Ivy
/*
* Copyright (C) 2020 Graylog, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* .
*/
package org.graylog.plugins.views.search.export;
import com.google.common.eventbus.EventBus;
import org.graylog.plugins.views.search.events.MessagesExportEvent;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import java.util.function.Consumer;
import java.util.function.Supplier;
import static java.util.Objects.requireNonNull;
public class AuditingMessagesExporter implements MessagesExporter {
private final AuditContext context;
@SuppressWarnings("UnstableApiUsage")
private final EventBus eventBus;
private final MessagesExporter decoratedExporter;
public Supplier startedAt = () -> DateTime.now(DateTimeZone.UTC);
public Supplier finishedAt = () -> DateTime.now(DateTimeZone.UTC);
public AuditingMessagesExporter(AuditContext context, @SuppressWarnings("UnstableApiUsage") EventBus eventBus, MessagesExporter decoratedExporter) {
this.context = context;
this.eventBus = eventBus;
this.decoratedExporter = decoratedExporter;
}
@Override
public void export(ExportMessagesCommand command, Consumer chunkForwarder) {
post(MessagesExportEvent.requested(startedAt.get(), context, command));
decoratedExporter.export(command, chunkForwarder);
post(MessagesExportEvent.succeeded(finishedAt.get(), context, command));
}
private void post(Object event) {
//noinspection UnstableApiUsage
eventBus.post(requireNonNull(event));
}
}