/*
* Copyright 2016 the original author or authors.
*
* 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.gradle.process.internal.health.memory;
import org.gradle.internal.os.OperatingSystem;
public class DefaultOsMemoryInfo implements OsMemoryInfo {
/**
* Retrieves the total physical memory size on the system in bytes.
*
* @throws UnsupportedOperationException if the JVM doesn't support getting total physical memory.
*/
long getTotalPhysicalMemory() {
return TotalPhysicalMemoryProvider.getTotalPhysicalMemory();
}
/**
* Retrieves the free physical memory on the system in bytes.
*
* @throws UnsupportedOperationException if the JVM doesn't support getting free physical memory.
*/
long getFreePhysicalMemory() {
OperatingSystem operatingSystem = OperatingSystem.current();
if (operatingSystem.isMacOsX()) {
return new NativeOsxAvailableMemory().get();
} else if (operatingSystem.isLinux()) {
return new MeminfoAvailableMemory().get();
}
return new MBeanAvailableMemory().get();
}
@Override
public OsMemoryStatus getOsSnapshot() {
return new OsMemoryStatusSnapshot(getTotalPhysicalMemory(), getFreePhysicalMemory());
}
}