--- /dev/null
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.atomix.utils.memory;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+
+/**
+ * Memory size.
+ */
+public class MemorySize {
+
+ /**
+ * Creates a memory size from the given bytes.
+ *
+ * @param bytes the number of bytes
+ * @return the memory size
+ */
+ public static MemorySize from(long bytes) {
+ return new MemorySize(bytes);
+ }
+
+ private final long bytes;
+
+ public MemorySize(long bytes) {
+ this.bytes = bytes;
+ }
+
+ /**
+ * Returns the number of bytes.
+ *
+ * @return the number of bytes
+ */
+ public long bytes() {
+ return bytes;
+ }
+
+ @Override
+ public int hashCode() {
+ return Long.valueOf(bytes).hashCode();
+ }
+
+ @Override
+ public boolean equals(Object object) {
+ return object instanceof MemorySize && ((MemorySize) object).bytes == bytes;
+ }
+
+ @Override
+ public String toString() {
+ return toStringHelper(this)
+ .addValue(bytes)
+ .toString();
+ }
+}