test/jdk/jdk/jfr/api/consumer/streaming/TestRepositoryProperty.java
changeset 58863 c16ac7a2eba4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/consumer/streaming/TestRepositoryProperty.java	Wed Oct 30 19:43:52 2019 +0100
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2019, 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.api.consumer.streaming;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Properties;
+
+import com.sun.tools.attach.AttachNotSupportedException;
+import com.sun.tools.attach.VirtualMachine;
+
+import jdk.jfr.Recording;
+import jdk.test.lib.dcmd.CommandExecutor;
+import jdk.test.lib.dcmd.PidJcmdExecutor;
+
+/**
+ * @test
+ * @summary Verifies that it is possible to access JFR repository from a system
+ *          property
+ * @key jfr
+ * @requires vm.hasJFR
+ * @library /test/lib
+ * @modules jdk.attach
+ *          jdk.jfr
+ * @run main/othervm -Djdk.attach.allowAttachSelf=true jdk.jfr.api.consumer.streaming.TestRepositoryProperty
+ */
+public class TestRepositoryProperty {
+
+    private final static String JFR_REPOSITORY_LOCATION_PROPERTY = "jdk.jfr.repository";
+
+    public static void main(String... args) throws Exception {
+        testBeforeInitialization();
+        testAfterInitialization();
+        testFromAgent();
+        testAfterChange();
+    }
+
+    private static void testFromAgent() throws AttachNotSupportedException, IOException {
+        String pidText = String.valueOf(ProcessHandle.current().pid());
+        VirtualMachine vm = VirtualMachine.attach(pidText);
+        Properties p = vm.getSystemProperties();
+        String location = (String) p.get(JFR_REPOSITORY_LOCATION_PROPERTY);
+        if (location == null) {
+            throw new AssertionError("Could not find repository path in agent properties");
+        }
+        Path path = Path.of(location);
+        if (!Files.isDirectory(path)) {
+            throw new AssertionError("Repository path doesn't point to directory");
+        }
+    }
+
+    private static void testAfterChange() {
+        Path newRepository = Path.of(".").toAbsolutePath();
+
+        String cmd = "JFR.configure repository=" +  newRepository.toString();
+        CommandExecutor executor = new PidJcmdExecutor();
+        executor.execute(cmd);
+        String location = System.getProperty(JFR_REPOSITORY_LOCATION_PROPERTY);
+        if (newRepository.toString().equals(location)) {
+            throw new AssertionError("Repository path not updated after it has been changed");
+        }
+    }
+
+    private static void testAfterInitialization() {
+        try (Recording r = new Recording()) {
+            r.start();
+            String location = System.getProperty(JFR_REPOSITORY_LOCATION_PROPERTY);
+            if (location == null) {
+                throw new AssertionError("Repository path should exist after JFR is initialized");
+            }
+            System.out.println("repository=" + location);
+            Path p = Path.of(location);
+            if (!Files.isDirectory(p)) {
+                throw new AssertionError("Repository path doesn't point to directory");
+            }
+        }
+
+    }
+
+    private static void testBeforeInitialization() {
+        String location = System.getProperty(JFR_REPOSITORY_LOCATION_PROPERTY);
+        if (location != null) {
+            throw new AssertionError("Repository path should not exist before JFR is initialized");
+        }
+    }
+}