oshi.driver.unix.freebsd.disk.GeomPartList Maven / Gradle / Ivy
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/*
* Copyright 2020-2022 The OSHI Project Contributors
* SPDX-License-Identifier: MIT
*/
package oshi.driver.unix.freebsd.disk;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import oshi.annotation.concurrent.ThreadSafe;
import oshi.hardware.HWPartition;
import oshi.util.Constants;
import oshi.util.ExecutingCommand;
import oshi.util.ParseUtil;
/**
* Utility to query geom part list
*/
@ThreadSafe
public final class GeomPartList {
private static final String GEOM_PART_LIST = "geom part list";
private static final String STAT_FILESIZE = "stat -f %i /dev/";
private GeomPartList() {
}
/**
* Queries partition data using geom, mount, and stat commands
*
* @return A map with disk name as the key and a List of partitions as the value
*/
public static Map> queryPartitions() {
Map mountMap = Mount.queryPartitionToMountMap();
// Map of device name to partitions, to be returned
Map> partitionMap = new HashMap<>();
// The Disk Store associated with a partition, key to the map
String diskName = null;
// List to hold partitions, will be added as value to the map
List partList = new ArrayList<>();
// Parameters needed for constructor.
String partName = null; // Non-null identifies a valid partition
String identification = Constants.UNKNOWN;
String type = Constants.UNKNOWN;
String uuid = Constants.UNKNOWN;
long size = 0;
String mountPoint = "";
List geom = ExecutingCommand.runNative(GEOM_PART_LIST);
for (String line : geom) {
line = line.trim();
// Marks the DiskStore device for a partition.
if (line.startsWith("Geom name:")) {
// Save any previous partition list in the map
if (diskName != null && !partList.isEmpty()) {
// Store map (old diskName)
partitionMap.put(diskName, partList);
// Reset the list
partList = new ArrayList<>();
}
// Now use new diskName
diskName = line.substring(line.lastIndexOf(' ') + 1);
}
// If we don't have a valid store, don't bother parsing anything
if (diskName != null) {
// Marks the beginning of partition data
if (line.contains("Name:")) {
// Add the current partition to the list, if any
if (partName != null) {
// FreeBSD Major # is 0.
// Minor # is filesize of /dev entry.
int minor = ParseUtil
.parseIntOrDefault(ExecutingCommand.getFirstAnswer(STAT_FILESIZE + partName), 0);
partList.add(new HWPartition(identification, partName, type, uuid, size, 0, minor, mountPoint));
partName = null;
identification = Constants.UNKNOWN;
type = Constants.UNKNOWN;
uuid = Constants.UNKNOWN;
size = 0;
}
// Verify new entry is a partition
// (will happen in 'providers' section)
String part = line.substring(line.lastIndexOf(' ') + 1);
if (part.startsWith(diskName)) {
partName = part;
identification = part;
mountPoint = mountMap.getOrDefault(part, "");
}
}
// If we don't have a valid partition, don't parse anything until we do.
if (partName != null) {
String[] split = ParseUtil.whitespaces.split(line);
if (split.length >= 2) {
if (line.startsWith("Mediasize:")) {
size = ParseUtil.parseLongOrDefault(split[1], 0L);
} else if (line.startsWith("rawuuid:")) {
uuid = split[1];
} else if (line.startsWith("type:")) {
type = split[1];
}
}
}
}
}
if (diskName != null) {
// Process last partition
if (partName != null) {
int minor = ParseUtil.parseIntOrDefault(ExecutingCommand.getFirstAnswer(STAT_FILESIZE + partName), 0);
partList.add(new HWPartition(identification, partName, type, uuid, size, 0, minor, mountPoint));
}
// Process last diskstore
if (!partList.isEmpty()) {
partList = partList.stream().sorted(Comparator.comparing(HWPartition::getName))
.collect(Collectors.toList());
partitionMap.put(diskName, partList);
}
}
return partitionMap;
}
}