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Elasticsearch subproject :server
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.common.unit;
public enum SizeUnit {
SINGLE {
@Override
public long toSingles(long size) {
return size;
}
@Override
public long toKilo(long size) {
return size / (C1 / C0);
}
@Override
public long toMega(long size) {
return size / (C2 / C0);
}
@Override
public long toGiga(long size) {
return size / (C3 / C0);
}
@Override
public long toTera(long size) {
return size / (C4 / C0);
}
@Override
public long toPeta(long size) {
return size / (C5 / C0);
}
},
KILO {
@Override
public long toSingles(long size) {
return x(size, C1 / C0, MAX / (C1 / C0));
}
@Override
public long toKilo(long size) {
return size;
}
@Override
public long toMega(long size) {
return size / (C2 / C1);
}
@Override
public long toGiga(long size) {
return size / (C3 / C1);
}
@Override
public long toTera(long size) {
return size / (C4 / C1);
}
@Override
public long toPeta(long size) {
return size / (C5 / C1);
}
},
MEGA {
@Override
public long toSingles(long size) {
return x(size, C2 / C0, MAX / (C2 / C0));
}
@Override
public long toKilo(long size) {
return x(size, C2 / C1, MAX / (C2 / C1));
}
@Override
public long toMega(long size) {
return size;
}
@Override
public long toGiga(long size) {
return size / (C3 / C2);
}
@Override
public long toTera(long size) {
return size / (C4 / C2);
}
@Override
public long toPeta(long size) {
return size / (C5 / C2);
}
},
GIGA {
@Override
public long toSingles(long size) {
return x(size, C3 / C0, MAX / (C3 / C0));
}
@Override
public long toKilo(long size) {
return x(size, C3 / C1, MAX / (C3 / C1));
}
@Override
public long toMega(long size) {
return x(size, C3 / C2, MAX / (C3 / C2));
}
@Override
public long toGiga(long size) {
return size;
}
@Override
public long toTera(long size) {
return size / (C4 / C3);
}
@Override
public long toPeta(long size) {
return size / (C5 / C3);
}
},
TERA {
@Override
public long toSingles(long size) {
return x(size, C4 / C0, MAX / (C4 / C0));
}
@Override
public long toKilo(long size) {
return x(size, C4 / C1, MAX / (C4 / C1));
}
@Override
public long toMega(long size) {
return x(size, C4 / C2, MAX / (C4 / C2));
}
@Override
public long toGiga(long size) {
return x(size, C4 / C3, MAX / (C4 / C3));
}
@Override
public long toTera(long size) {
return size;
}
@Override
public long toPeta(long size) {
return size / (C5 / C0);
}
},
PETA {
@Override
public long toSingles(long size) {
return x(size, C5 / C0, MAX / (C5 / C0));
}
@Override
public long toKilo(long size) {
return x(size, C5 / C1, MAX / (C5 / C1));
}
@Override
public long toMega(long size) {
return x(size, C5 / C2, MAX / (C5 / C2));
}
@Override
public long toGiga(long size) {
return x(size, C5 / C3, MAX / (C5 / C3));
}
@Override
public long toTera(long size) {
return x(size, C5 / C4, MAX / (C5 / C4));
}
@Override
public long toPeta(long size) {
return size;
}
};
static final long C0 = 1L;
static final long C1 = C0 * 1000L;
static final long C2 = C1 * 1000L;
static final long C3 = C2 * 1000L;
static final long C4 = C3 * 1000L;
static final long C5 = C4 * 1000L;
static final long MAX = Long.MAX_VALUE;
/**
* Scale d by m, checking for overflow.
* This has a short name to make above code more readable.
*/
static long x(long d, long m, long over) {
if (d > over) return Long.MAX_VALUE;
if (d < -over) return Long.MIN_VALUE;
return d * m;
}
public abstract long toSingles(long size);
public abstract long toKilo(long size);
public abstract long toMega(long size);
public abstract long toGiga(long size);
public abstract long toTera(long size);
public abstract long toPeta(long size);
}