/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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.Streamable;
import java.io.IOException;
import java.io.Serializable;
/**
* @author kimchy (shay.banon)
*/
public class ByteSizeValue implements Serializable, Streamable {
private long size;
private ByteSizeUnit sizeUnit;
private ByteSizeValue() {
}
public ByteSizeValue(long bytes) {
this(bytes, ByteSizeUnit.BYTES);
}
public ByteSizeValue(long size, ByteSizeUnit sizeUnit) {
this.size = size;
this.sizeUnit = sizeUnit;
}
public long bytes() {
return sizeUnit.toBytes(size);
}
public long getBytes() {
return bytes();
}
public long kb() {
return sizeUnit.toKB(size);
}
public long getKb() {
return kb();
}
public long mb() {
return sizeUnit.toMB(size);
}
public long getMb() {
return mb();
}
public long gb() {
return sizeUnit.toGB(size);
}
public long getGb() {
return gb();
}
public double kbFrac() {
return ((double) bytes()) / ByteSizeUnit.C1;
}
public double getKbFrac() {
return kbFrac();
}
public double mbFrac() {
return ((double) bytes()) / ByteSizeUnit.C2;
}
public double getMbFrac() {
return mbFrac();
}
public double gbFrac() {
return ((double) bytes()) / ByteSizeUnit.C3;
}
public double getGbFrac() {
return gbFrac();
}
@Override public String toString() {
long bytes = bytes();
double value = bytes;
String suffix = "b";
if (bytes >= ByteSizeUnit.C3) {
value = gbFrac();
suffix = "gb";
} else if (bytes >= ByteSizeUnit.C2) {
value = mbFrac();
suffix = "mb";
} else if (bytes >= ByteSizeUnit.C1) {
value = kbFrac();
suffix = "kb";
}
return Strings.format1Decimals(value, suffix);
}
public static ByteSizeValue parseBytesSizeValue(String sValue) throws ElasticSearchParseException {
return parseBytesSizeValue(sValue, null);
}
public static ByteSizeValue parseBytesSizeValue(String sValue, ByteSizeValue defaultValue) throws ElasticSearchParseException {
if (sValue == null) {
return defaultValue;
}
long bytes;
try {
if (sValue.endsWith("k") || sValue.endsWith("K")) {
bytes = (long) (Double.parseDouble(sValue.substring(0, sValue.length() - 1)) * ByteSizeUnit.C1);
} else if (sValue.endsWith("kb")) {
bytes = (long) (Double.parseDouble(sValue.substring(0, sValue.length() - 2)) * ByteSizeUnit.C1);
} else if (sValue.endsWith("m") || sValue.endsWith("M")) {
bytes = (long) (Double.parseDouble(sValue.substring(0, sValue.length() - 1)) * ByteSizeUnit.C2);
} else if (sValue.endsWith("mb")) {
bytes = (long) (Double.parseDouble(sValue.substring(0, sValue.length() - 2)) * ByteSizeUnit.C2);
} else if (sValue.endsWith("g") || sValue.endsWith("G")) {
bytes = (long) (Double.parseDouble(sValue.substring(0, sValue.length() - 1)) * ByteSizeUnit.C3);
} else if (sValue.endsWith("gb")) {
bytes = (long) (Double.parseDouble(sValue.substring(0, sValue.length() - 2)) * ByteSizeUnit.C3);
} else if (sValue.endsWith("b")) {
bytes = Long.parseLong(sValue.substring(0, sValue.length() - 1));
} else {
bytes = Long.parseLong(sValue);
}
} catch (NumberFormatException e) {
throw new ElasticSearchParseException("Failed to parse [" + sValue + "]", e);
}
return new ByteSizeValue(bytes, ByteSizeUnit.BYTES);
}
public static ByteSizeValue readBytesSizeValue(StreamInput in) throws IOException {
ByteSizeValue sizeValue = new ByteSizeValue();
sizeValue.readFrom(in);
return sizeValue;
}
@Override public void readFrom(StreamInput in) throws IOException {
size = in.readVLong();
sizeUnit = ByteSizeUnit.BYTES;
}
@Override public void writeTo(StreamOutput out) throws IOException {
out.writeVLong(bytes());
}
@Override public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ByteSizeValue sizeValue = (ByteSizeValue) o;
if (size != sizeValue.size) return false;
if (sizeUnit != sizeValue.sizeUnit) return false;
return true;
}
@Override public int hashCode() {
int result = (int) (size ^ (size >>> 32));
result = 31 * result + (sizeUnit != null ? sizeUnit.hashCode() : 0);
return result;
}
}