Refactor SystemInfo, and store SystemInfo into singleton instance
- Implement Bill Pugh singleton for ControlMetricsFactory and
SystemInfo class
Change-Id: Ia97538d9f1be9ea900b0e87371bf50877eaf6483
diff --git a/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/DefaultSystemInfo.java b/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/DefaultSystemInfo.java
new file mode 100644
index 0000000..e4a301b
--- /dev/null
+++ b/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/DefaultSystemInfo.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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 org.onosproject.cpman.impl;
+
+import org.onosproject.cpman.SystemInfo;
+
+/**
+ * Implementation class of storing system specification.
+ */
+public final class DefaultSystemInfo implements SystemInfo {
+ private int numOfCores;
+ private int numOfCpus;
+ private int cpuSpeedMhz;
+ private int totalMemoryMbytes;
+
+ private DefaultSystemInfo(int numOfCores, int numOfCpus,
+ int cpuSpeedMhz, int totalMemoryMbytes) {
+ this.numOfCores = numOfCores;
+ this.numOfCpus = numOfCpus;
+ this.cpuSpeedMhz = cpuSpeedMhz;
+ this.totalMemoryMbytes = totalMemoryMbytes;
+ }
+
+ @Override
+ public int coreCount() {
+ return this.numOfCores;
+ }
+
+ @Override
+ public int cpuCount() {
+ return this.numOfCpus;
+ }
+
+ @Override
+ public int cpuSpeed() {
+ return this.cpuSpeedMhz;
+ }
+
+ @Override
+ public int totalMemory() {
+ return this.totalMemoryMbytes;
+ }
+
+ /**
+ * ControlMetricsSystemSpec builder class.
+ */
+ public static final class Builder implements SystemInfo.Builder {
+ private int numOfCores;
+ private int numOfCpus;
+ private int cpuSpeedMHz;
+ private int totalMemoryBytes;
+
+ @Override
+ public SystemInfo.Builder numOfCores(int numOfCores) {
+ this.numOfCores = numOfCores;
+ return this;
+ }
+
+ @Override
+ public Builder numOfCpus(int numOfCpus) {
+ this.numOfCpus = numOfCpus;
+ return this;
+ }
+
+ @Override
+ public Builder cpuSpeed(int cpuSpeedMhz) {
+ this.cpuSpeedMHz = cpuSpeedMhz;
+ return this;
+ }
+
+ @Override
+ public Builder totalMemory(int totalMemoryBytes) {
+ this.totalMemoryBytes = totalMemoryBytes;
+ return this;
+ }
+
+ @Override
+ public DefaultSystemInfo build() {
+ return new DefaultSystemInfo(numOfCores, numOfCpus, cpuSpeedMHz, totalMemoryBytes);
+ }
+ }
+}