--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.jfr/share/classes/jdk/jfr/internal/settings/PeriodSetting.java Tue May 15 20:24:34 2018 +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.internal.settings;
+
+import java.util.Objects;
+import java.util.Set;
+
+import jdk.jfr.Description;
+import jdk.jfr.Label;
+import jdk.jfr.MetadataDefinition;
+import jdk.jfr.Name;
+import jdk.jfr.internal.PlatformEventType;
+import jdk.jfr.internal.Control;
+import jdk.jfr.internal.Type;
+import jdk.jfr.internal.Utils;
+
+@MetadataDefinition
+@Label("Period")
+@Description("Record event at interval")
+@Name(Type.SETTINGS_PREFIX + "Period")
+public final class PeriodSetting extends Control {
+ private static final long typeId = Type.getTypeId(PeriodSetting.class);
+
+ public static final String EVERY_CHUNK = "everyChunk";
+ public static final String BEGIN_CHUNK = "beginChunk";
+ public static final String END_CHUNK = "endChunk";
+ public static final String NAME = "period";
+ private final PlatformEventType eventType;
+ private String value = EVERY_CHUNK;
+
+ public PeriodSetting(PlatformEventType eventType, String defaultValue) {
+ super(defaultValue);
+ this.eventType = Objects.requireNonNull(eventType);
+ }
+
+ @Override
+ public String combine(Set<String> values) {
+ long min = Long.MAX_VALUE;
+ boolean beginChunk = false;
+ boolean endChunk = false;
+ String text = EVERY_CHUNK;
+ for (String value : values) {
+ switch (value) {
+ case EVERY_CHUNK:
+ beginChunk = true;
+ endChunk = true;
+ break;
+ case BEGIN_CHUNK:
+ beginChunk = true;
+ break;
+ case END_CHUNK:
+ endChunk = true;
+ break;
+ default:
+ long l = Utils.parseTimespan(value);
+ if (l < min) {
+ text = value;
+ min = l;
+ }
+ }
+ }
+ if (min != Long.MAX_VALUE) {
+ return text;
+ }
+ if (beginChunk && !endChunk) {
+ return BEGIN_CHUNK;
+ }
+ if (!beginChunk && endChunk) {
+ return END_CHUNK;
+ }
+ return text;
+ }
+
+ @Override
+ public void setValue(String value) {
+ switch (value) {
+ case EVERY_CHUNK:
+ eventType.setPeriod(0, true, true);
+ break;
+ case BEGIN_CHUNK:
+ eventType.setPeriod(0, true, false);
+ break;
+ case END_CHUNK:
+ eventType.setPeriod(0, false, true);
+ break;
+ default:
+ eventType.setPeriod(Utils.parseTimespan(value) / 1_000_000, false, false);
+ }
+ this.value = value;
+ }
+
+ @Override
+ public String getValue() {
+ return value;
+ }
+
+ public static boolean isType(long typeId) {
+ return PeriodSetting.typeId == typeId;
+ }
+}