7201: JdkAttributes.OS_SWITCH_RATE does not work consistently across JFRs from different JDK versions.

Reviewed-by: hirt

Author: Suchita Chaturvedi

core/org.openjdk.jmc.flightrecorder/src/main/java/org/openjdk/jmc/flightrecorder/jdk/JdkAttributes.java

@@ -1146,8 +1146,7 @@ public String getMember(U i) {
 	public static final IAttribute<IMCThread> MONITOR_PREVIOUS_OWNER = attr("previousOwner", //$NON-NLS-1$
 			Messages.getString(Messages.ATTR_MONITOR_PREVIOUS_OWNER), THREAD);
 
-	public static final IAttribute<IQuantity> OS_SWITCH_RATE = attr("switchRate", //$NON-NLS-1$
-			Messages.getString(Messages.ATTR_OS_SWITCH_RATE), NUMBER);
+	public static IAttribute<IQuantity> OS_SWITCH_RATE;
 	public static final IAttribute<String> REFERENCE_STATISTICS_TYPE = attr("type", //$NON-NLS-1$
 			Messages.getString(Messages.ATTR_REFERENCE_STATISTICS_TYPE), PLAIN_TEXT);
 	public static final IAttribute<IQuantity> REFERENCE_STATISTICS_COUNT = attr("count", //$NON-NLS-1$

core/org.openjdk.jmc.flightrecorder/src/main/java/org/openjdk/jmc/flightrecorder/parser/synthetic/Messages.java

@@ -48,6 +48,7 @@ public class Messages {
 	public static final String SyntheticAttributeExtension_EXECUTION_SAMPLES_STACKTRACE = "SyntheticAttributeExtension_EXECUTION_SAMPLES_STACKTRACE"; //$NON-NLS-1$
 	public static final String SyntheticAttributeExtension_EXECUTION_SAMPLES_THREAD = "SyntheticAttributeExtension_EXECUTION_SAMPLES_THREAD"; //$NON-NLS-1$
 	public static final String SyntheticAttributeExtension_REC_SETTING_EVENT_ID_ATTRIBUTE = "SyntheticAttributeExtension_REC_SETTING_EVENT_ID_ATTRIBUTE"; //$NON-NLS-1$
+	public static final String SyntheticAttributeExtension_ATTR_OS_SWITCH_RATE = "SyntheticAttributeExtension_ATTR_OS_SWITCH_RATE"; //$NON-NLS-1$
 
 	private Messages() {
 	}

core/org.openjdk.jmc.flightrecorder/src/main/java/org/openjdk/jmc/flightrecorder/parser/synthetic/OracleJdkTypeIDsPre11.java

@@ -178,7 +178,7 @@ public final class OracleJdkTypeIDsPre11 {
 	private final static String VM_OPERATIONS = JVM_EVENT_ID_ROOT + "vm/runtime/execute_vm_operation";
 
 	private final static String THREAD_STATISTICS = JVM_EVENT_ID_ROOT + "java/statistics/threads";
-	private final static String CONTEXT_SWITCH_RATE = JVM_EVENT_ID_ROOT + "os/processor/context_switch_rate";
+	final static String CONTEXT_SWITCH_RATE = JVM_EVENT_ID_ROOT + "os/processor/context_switch_rate";
 
 	private final static String COMPILER_CONFIG = JVM_EVENT_ID_ROOT + "vm/compiler/config";
 	private final static String CODE_CACHE_CONFIG = JVM_EVENT_ID_ROOT + "vm/code_cache/config";

core/org.openjdk.jmc.flightrecorder/src/main/java/org/openjdk/jmc/flightrecorder/parser/synthetic/SyntheticAttributeExtension.java

@@ -72,6 +72,7 @@ public class SyntheticAttributeExtension implements IParserExtension {
 	static final IAttribute<LabeledIdentifier> REC_SETTING_EVENT_ID_ATTRIBUTE = attr("id", //$NON-NLS-1$
 			Messages.getString(Messages.SyntheticAttributeExtension_REC_SETTING_EVENT_ID_ATTRIBUTE),
 			UnitLookup.LABELED_IDENTIFIER);
+	private static final String SWITCH_RATE = "switchRate";
 
 	@Override
 	public IEventSinkFactory getEventSinkFactory(final IEventSinkFactory sf) {
@@ -187,6 +188,17 @@ public String getValueInterpretation(String eventTypeId, String fieldId) {
 						|| OracleJdkTypeIDsPre11.JDK9_RECORDING_SETTING.equals(eventTypeId)
 						|| JdkTypeIDs.RECORDING_SETTING.equals(eventTypeId))) {
 			return JfrInternalConstants.TYPE_IDENTIFIER_VALUE_INTERPRETATION;
+		} else if (SWITCH_RATE.equals(fieldId)) {
+			if (eventTypeId.equalsIgnoreCase("jdk.ThreadContextSwitchRate")) {
+				JdkAttributes.OS_SWITCH_RATE = attr("switchRate", //$NON-NLS-1$
+						Messages.getString(Messages.SyntheticAttributeExtension_ATTR_OS_SWITCH_RATE),
+						UnitLookup.FREQUENCY);
+
+			} else if (OracleJdkTypeIDsPre11.CONTEXT_SWITCH_RATE.equals(eventTypeId)) {
+				JdkAttributes.OS_SWITCH_RATE = attr("switchRate", //$NON-NLS-1$
+						Messages.getString(Messages.SyntheticAttributeExtension_ATTR_OS_SWITCH_RATE),
+						UnitLookup.NUMBER);
+			}
 		}
 		return null;
 	}

core/org.openjdk.jmc.flightrecorder/src/main/resources/org/openjdk/jmc/flightrecorder/parser/synthetic/messages.properties

@@ -38,3 +38,4 @@ SyntheticAttributeExtension_ALLOC_STATISTICS_THREAD=Thread
 SyntheticAttributeExtension_EXECUTION_SAMPLES_STACKTRACE=Stack Trace
 SyntheticAttributeExtension_EXECUTION_SAMPLES_THREAD=Sampled Thread
 SyntheticAttributeExtension_REC_SETTING_EVENT_ID_ATTRIBUTE=Event Id
+SyntheticAttributeExtension_ATTR_OS_SWITCH_RATE=Context Switch Rate