test/jdk/jdk/jfr/api/consumer/recordingstream/TestSetMaxSize.java
author mgronlun
Wed, 30 Oct 2019 19:43:52 +0100
changeset 58863 c16ac7a2eba4
permissions -rw-r--r--
8226511: Implement JFR Event Streaming Reviewed-by: egahlin, mseledtsov, mgronlun Contributed-by: erik.gahlin@oracle.com, mikhailo.seledtsov@oracle.com, markus.gronlund@oracle.com
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/*
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 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package jdk.jfr.api.consumer.recordingstream;
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import jdk.jfr.consumer.RecordingStream;
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import jdk.test.lib.jfr.EventNames;
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/**
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* @test
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* @summary Tests RecordingStrream::setMaxSize
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* @key jfr
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* @requires vm.hasJFR
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* @library /test/lib
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* @run main/othervm jdk.jfr.api.consumer.recordingstream.TestSetMaxSize
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*/
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public class TestSetMaxSize {
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   public static void main(String... args) throws Exception {
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       long testSize = 123456789;
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       try (RecordingStream r = new RecordingStream()) {
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           r.setMaxSize(123456789);
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           r.enable(EventNames.ActiveRecording);
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           r.onEvent(e -> {
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               System.out.println(e);
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               long size= e.getLong("maxSize");
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               if (size == testSize) {
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                   r.close();
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                   return;
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               }
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               System.out.println("Max size not set, was " + size + ", but expected " + testSize);
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           });
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           r.start();
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       }
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   }
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}