/*
* 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;
public class MBeanAvailableMemory implements AvailableMemory {
@Override
public long get() throws UnsupportedOperationException {
// MBean value takes reclaimable memory into account on Windows and Solaris
// See https://msdn.microsoft.com/en-us/library/windows/desktop/aa366770(v=vs.85).aspx
// See https://github.com/dmlloyd/openjdk/blob/jdk8u/jdk8u/jdk/src/solaris/native/sun/management/OperatingSystemImpl.c#L341
return MBeanAttributeProvider.getMbeanAttribute("java.lang:type=OperatingSystem", "FreePhysicalMemorySize", Long.class);
}
}