--- /dev/null 2017-11-09 09:38:01.297999907 +0100 +++ new/src/jdk.jfr/share/classes/jdk/jfr/consumer/RecordedEvent.java 2018-04-09 15:48:07.222184849 +0200 @@ -0,0 +1,123 @@ +/* + * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code 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 GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package jdk.jfr.consumer; + +import java.time.Duration; +import java.time.Instant; +import java.util.List; + +import jdk.jfr.EventType; +import jdk.jfr.ValueDescriptor; +import jdk.jfr.internal.EventInstrumentation; + +/** + * A recorded event. + * + * @since 9 + */ +public final class RecordedEvent extends RecordedObject { + private final EventType eventType; + private final long startTime; + private final long endTime; + + // package private + RecordedEvent(EventType type, List vds, Object[] values, long startTime, long endTime, TimeConverter timeConverter) { + super(vds, values, timeConverter); + this.eventType = type; + this.startTime = startTime; + this.endTime = endTime; + } + + /** + * Returns the stack trace that was created when the event was committed, or + * {@code null} if the event lacks a stack trace. + * + * @return stack trace, or {@code null} if not available for event + */ + public RecordedStackTrace getStackTrace() { + return getTyped(EventInstrumentation.FIELD_STACK_TRACE, RecordedStackTrace.class, null); + } + + /** + * Returns the thread from which the event was committed, or {@code null} if + * the thread was not recorded. + * + * @return thread, or {@code null} if not available for event + */ + public RecordedThread getThread() { + return getTyped(EventInstrumentation.FIELD_EVENT_THREAD, RecordedThread.class, null); + } + + /** + * Returns the event type that describes the event. + * + * @return the event type, not {@code null} + */ + public EventType getEventType() { + return eventType; + } + + /** + * Returns the start time of the event. + *

+ * If the event is an instant event, then the start time and end time are the same. + * + * @return the start time, not {@code null} + */ + public Instant getStartTime() { + return Instant.ofEpochSecond(0, startTime); + } + + /** + * Returns the end time of the event. + *

+ * If the event is an instant event, then the start time and end time are the same. + * + * @return the end time, not {@code null} + */ + public Instant getEndTime() { + return Instant.ofEpochSecond(0, endTime); + } + + /** + * Returns the duration of the event, measured in nanoseconds. + * + * @return the duration in nanoseconds, not {@code null} + */ + public Duration getDuration() { + return Duration.ofNanos(endTime - startTime); + } + + /** + * Returns the list of descriptors that describes the fields of the event. + * + * @return descriptors, not {@code null} + */ + @Override + public List getFields() { + return getEventType().getFields(); + } +}