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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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.elasticsearch.common.unit;
import org.elasticsearch.ElasticsearchParseException;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import java.io.IOException;
import java.util.Locale;
import java.util.Objects;
public class ByteSizeValue implements Writeable, Comparable {
private final long size;
private final ByteSizeUnit unit;
public ByteSizeValue(StreamInput in) throws IOException {
size = in.readVLong();
unit = ByteSizeUnit.BYTES;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeVLong(getBytes());
}
public ByteSizeValue(long bytes) {
this(bytes, ByteSizeUnit.BYTES);
}
public ByteSizeValue(long size, ByteSizeUnit unit) {
this.size = size;
this.unit = unit;
}
public int bytesAsInt() {
long bytes = getBytes();
if (bytes > Integer.MAX_VALUE) {
throw new IllegalArgumentException("size [" + toString() + "] is bigger than max int");
}
return (int) bytes;
}
public long getBytes() {
return unit.toBytes(size);
}
public long getKb() {
return unit.toKB(size);
}
public long getMb() {
return unit.toMB(size);
}
public long getGb() {
return unit.toGB(size);
}
public long getTb() {
return unit.toTB(size);
}
public long getPb() {
return unit.toPB(size);
}
public double getKbFrac() {
return ((double) getBytes()) / ByteSizeUnit.C1;
}
public double getMbFrac() {
return ((double) getBytes()) / ByteSizeUnit.C2;
}
public double getGbFrac() {
return ((double) getBytes()) / ByteSizeUnit.C3;
}
public double getTbFrac() {
return ((double) getBytes()) / ByteSizeUnit.C4;
}
public double getPbFrac() {
return ((double) getBytes()) / ByteSizeUnit.C5;
}
@Override
public String toString() {
long bytes = getBytes();
double value = bytes;
String suffix = "b";
if (bytes >= ByteSizeUnit.C5) {
value = getPbFrac();
suffix = "pb";
} else if (bytes >= ByteSizeUnit.C4) {
value = getTbFrac();
suffix = "tb";
} else if (bytes >= ByteSizeUnit.C3) {
value = getGbFrac();
suffix = "gb";
} else if (bytes >= ByteSizeUnit.C2) {
value = getMbFrac();
suffix = "mb";
} else if (bytes >= ByteSizeUnit.C1) {
value = getKbFrac();
suffix = "kb";
}
return Strings.format1Decimals(value, suffix);
}
public static ByteSizeValue parseBytesSizeValue(String sValue, String settingName) throws ElasticsearchParseException {
return parseBytesSizeValue(sValue, null, settingName);
}
public static ByteSizeValue parseBytesSizeValue(String sValue, ByteSizeValue defaultValue, String settingName)
throws ElasticsearchParseException {
settingName = Objects.requireNonNull(settingName);
if (sValue == null) {
return defaultValue;
}
long bytes;
try {
String lowerSValue = sValue.toLowerCase(Locale.ROOT).trim();
if (lowerSValue.endsWith("k")) {
bytes = (long) (Double.parseDouble(lowerSValue.substring(0, lowerSValue.length() - 1)) * ByteSizeUnit.C1);
} else if (lowerSValue.endsWith("kb")) {
bytes = (long) (Double.parseDouble(lowerSValue.substring(0, lowerSValue.length() - 2)) * ByteSizeUnit.C1);
} else if (lowerSValue.endsWith("m")) {
bytes = (long) (Double.parseDouble(lowerSValue.substring(0, lowerSValue.length() - 1)) * ByteSizeUnit.C2);
} else if (lowerSValue.endsWith("mb")) {
bytes = (long) (Double.parseDouble(lowerSValue.substring(0, lowerSValue.length() - 2)) * ByteSizeUnit.C2);
} else if (lowerSValue.endsWith("g")) {
bytes = (long) (Double.parseDouble(lowerSValue.substring(0, lowerSValue.length() - 1)) * ByteSizeUnit.C3);
} else if (lowerSValue.endsWith("gb")) {
bytes = (long) (Double.parseDouble(lowerSValue.substring(0, lowerSValue.length() - 2)) * ByteSizeUnit.C3);
} else if (lowerSValue.endsWith("t")) {
bytes = (long) (Double.parseDouble(lowerSValue.substring(0, lowerSValue.length() - 1)) * ByteSizeUnit.C4);
} else if (lowerSValue.endsWith("tb")) {
bytes = (long) (Double.parseDouble(lowerSValue.substring(0, lowerSValue.length() - 2)) * ByteSizeUnit.C4);
} else if (lowerSValue.endsWith("p")) {
bytes = (long) (Double.parseDouble(lowerSValue.substring(0, lowerSValue.length() - 1)) * ByteSizeUnit.C5);
} else if (lowerSValue.endsWith("pb")) {
bytes = (long) (Double.parseDouble(lowerSValue.substring(0, lowerSValue.length() - 2)) * ByteSizeUnit.C5);
} else if (lowerSValue.endsWith("b")) {
bytes = Long.parseLong(lowerSValue.substring(0, lowerSValue.length() - 1).trim());
} else if (lowerSValue.equals("-1")) {
// Allow this special value to be unit-less:
bytes = -1;
} else if (lowerSValue.equals("0")) {
// Allow this special value to be unit-less:
bytes = 0;
} else {
// Missing units:
throw new ElasticsearchParseException(
"failed to parse setting [{}] with value [{}] as a size in bytes: unit is missing or unrecognized",
settingName, sValue);
}
} catch (NumberFormatException e) {
throw new ElasticsearchParseException("failed to parse [{}]", e, sValue);
}
return new ByteSizeValue(bytes, ByteSizeUnit.BYTES);
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
return compareTo((ByteSizeValue) o) == 0;
}
@Override
public int hashCode() {
return Double.hashCode(((double) size) * unit.toBytes(1));
}
@Override
public int compareTo(ByteSizeValue other) {
double thisValue = ((double) size) * unit.toBytes(1);
double otherValue = ((double) other.size) * other.unit.toBytes(1);
return Double.compare(thisValue, otherValue);
}
}