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A Speedment bundle that shades all dependencies into one jar. This is
useful when deploying an application on a server.
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/*
*
* Copyright (c) 2006-2019, Speedment, Inc. All Rights Reserved.
*
* 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 com.speedment.runtime.core.internal.util.testing;
/**
*
* @author Per Minborg
*/
public class MemoryProbe {
private final long free, total, max;
private MemoryProbe() {
System.gc();
System.gc();
final Runtime rt = Runtime.getRuntime();
this.free = rt.freeMemory();
this.total = rt.totalMemory();
this.max = rt.maxMemory();
}
protected MemoryProbe(long free, long total, long max) {
this.free = free;
this.total = total;
this.max = max;
}
public long free() {
return free;
}
public long total() {
return total;
}
public long max() {
return max;
}
public long used() {
return total() - free();
}
@Override
public String toString() {
return getClass().getSimpleName()
+ "{free=" + free()
+ ", total=" + total()
+ ", max=" + max()
+ ", used=" + used()
+ "}";
}
public MemoryProbe deltaSinceCreated() {
return new MemoryProbe().substract(this);
}
public static MemoryProbe create() {
return new MemoryProbe();
}
public MemoryProbe substract(MemoryProbe operand) {
return new MemoryProbe(free() - operand.free(), total() - operand.total(), max() - operand.max());
}
}