1 files changed, 67 insertions, 0 deletions
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/logging/PerformanceLogContext.java b/org.eclipse.jgit/src/org/eclipse/jgit/logging/PerformanceLogContext.java
new file mode 100644
index 0000000000..fab0dd102a
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+++ b/org.eclipse.jgit/src/org/eclipse/jgit/logging/PerformanceLogContext.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2020, Google LLC  and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Distribution License v. 1.0 which is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+package org.eclipse.jgit.logging;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * Singleton that collects performance logs.
+ *
+ * @since 5.10
+ */
+public class PerformanceLogContext {
+	/** Singleton instance that stores the statistics. */
+	private static final PerformanceLogContext INSTANCE = new PerformanceLogContext();
+
+	/** List that stores events as performance logs. */
+	private static final ThreadLocal<List<PerformanceLogRecord>> eventRecords = ThreadLocal
+			.withInitial(ArrayList::new);
+
+	private PerformanceLogContext() {
+	}
+
+	/**
+	 * Get the instance of the context.
+	 *
+	 * @return instance of performance log context.
+	 */
+	public static PerformanceLogContext getInstance() {
+		return INSTANCE;
+	}
+
+	/**
+	 * Get the unmodifiable list of events as performance records.
+	 *
+	 * @return unmodifiable list of events as performance logs.
+	 */
+	public List<PerformanceLogRecord> getEventRecords() {
+		return Collections.unmodifiableList(eventRecords.get());
+	}
+
+	/**
+	 * Adds a performance log record to the current list of events.
+	 *
+	 * @param record
+	 *            performance log record that is going to be added.
+	 */
+	public void addEvent(PerformanceLogRecord record) {
+		eventRecords.get().add(record);
+	}
+
+	/**
+	 * Removes all of the existing records from the current list of events.
+	 */
+	public void cleanEvents() {
+		eventRecords.remove();
+	}
+}
+\ No newline at end of file