Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/**
* Oshi (https://github.com/dblock/oshi)
*
* Copyright (c) 2010 - 2016 The Oshi Project Team
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Maintainers:
* dblock[at]dblock[dot]org
* widdis[at]gmail[dot]com
* enrico.bianchi[at]gmail[dot]com
*
* Contributors:
* https://github.com/dblock/oshi/graphs/contributors
*/
package oshi.hardware.platform.linux;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import oshi.hardware.UsbDevice;
import oshi.hardware.common.AbstractUsbDevice;
import oshi.hardware.platform.mac.MacUsbDevice;
import oshi.jna.platform.linux.Udev;
import oshi.jna.platform.linux.Udev.UdevDevice;
import oshi.jna.platform.linux.Udev.UdevEnumerate;
import oshi.jna.platform.linux.Udev.UdevListEntry;
public class LinuxUsbDevice extends AbstractUsbDevice {
private static final long serialVersionUID = 2L;
/*
* Maps to store information using device node path as the key
*/
private static Map nameMap = new HashMap<>();
private static Map vendorMap = new HashMap<>();
private static Map vendorIdMap = new HashMap<>();
private static Map productIdMap = new HashMap<>();
private static Map serialMap = new HashMap<>();
private static Map> hubMap = new HashMap<>();
public LinuxUsbDevice(String name, String vendor, String vendorId, String productId, String serialNumber,
UsbDevice[] connectedDevices) {
super(name, vendor, vendorId, productId, serialNumber, connectedDevices);
}
/**
* {@inheritDoc}
*/
public static UsbDevice[] getUsbDevices(boolean tree) {
UsbDevice[] devices = getUsbDevices();
if (tree) {
return devices;
}
List deviceList = new ArrayList<>();
// Top level is controllers; they won't be added to the list, but all
// their connected devices will be
for (UsbDevice device : devices) {
deviceList.add(new LinuxUsbDevice(device.getName(), device.getVendor(), device.getVendorId(),
device.getProductId(), device.getSerialNumber(), new MacUsbDevice[0]));
addDevicesToList(deviceList, device.getConnectedDevices());
}
return deviceList.toArray(new UsbDevice[deviceList.size()]);
}
private static void addDevicesToList(List deviceList, UsbDevice[] connectedDevices) {
for (UsbDevice device : connectedDevices) {
deviceList.add(device);
addDevicesToList(deviceList, device.getConnectedDevices());
}
}
private static UsbDevice[] getUsbDevices() {
// Enumerate all usb devices and build information maps
Udev.UdevHandle udev = Udev.INSTANCE.udev_new();
// Create a list of the devices in the 'usb' subsystem.
UdevEnumerate enumerate = Udev.INSTANCE.udev_enumerate_new(udev);
Udev.INSTANCE.udev_enumerate_add_match_subsystem(enumerate, "usb");
Udev.INSTANCE.udev_enumerate_scan_devices(enumerate);
UdevListEntry devices = Udev.INSTANCE.udev_enumerate_get_list_entry(enumerate);
// Build a list of devices with no parent; these will be the roots
List usbControllers = new ArrayList<>();
// Empty out maps
nameMap.clear();
vendorMap.clear();
vendorIdMap.clear();
productIdMap.clear();
serialMap.clear();
hubMap.clear();
// For each item enumerated, store information in the maps
for (UdevListEntry dev_list_entry = devices; dev_list_entry != null; dev_list_entry = Udev.INSTANCE
.udev_list_entry_get_next(dev_list_entry)) {
// Get the filename of the /sys entry for the device and create a
// udev_device object (dev) representing it
String path = Udev.INSTANCE.udev_list_entry_get_name(dev_list_entry);
UdevDevice dev = Udev.INSTANCE.udev_device_new_from_syspath(udev, path);
// Ignore interfaces
if (!"usb_device".equals(Udev.INSTANCE.udev_device_get_devtype(dev))) {
continue;
}
// Use the path as the key for the maps
String value = Udev.INSTANCE.udev_device_get_sysattr_value(dev, "product");
if (value != null) {
nameMap.put(path, value);
}
value = Udev.INSTANCE.udev_device_get_sysattr_value(dev, "manufacturer");
if (value != null) {
vendorMap.put(path, value);
}
value = Udev.INSTANCE.udev_device_get_sysattr_value(dev, "idVendor");
if (value != null) {
vendorIdMap.put(path, value);
}
value = Udev.INSTANCE.udev_device_get_sysattr_value(dev, "idProduct");
if (value != null) {
productIdMap.put(path, value);
}
value = Udev.INSTANCE.udev_device_get_sysattr_value(dev, "serial");
if (value != null) {
serialMap.put(path, value);
}
UdevDevice parent = Udev.INSTANCE.udev_device_get_parent_with_subsystem_devtype(dev, "usb", "usb_device");
if (parent == null) {
// This is a controller with no parent, add to list
usbControllers.add(path);
} else {
// Add child path (path variable) to parent's path
String parentPath = Udev.INSTANCE.udev_device_get_syspath(parent);
hubMap.computeIfAbsent(parentPath, k -> new ArrayList()).add(path);
}
Udev.INSTANCE.udev_device_unref(dev);
}
// Free the enumerator object
Udev.INSTANCE.udev_enumerate_unref(enumerate);
Udev.INSTANCE.udev_unref(udev);
// Build tree and return
List controllerDevices = new ArrayList<>();
for (String controller : usbControllers) {
controllerDevices.add(getDeviceAndChildren(controller, "0000", "0000"));
}
return controllerDevices.toArray(new UsbDevice[controllerDevices.size()]);
}
/**
* Recursively creates LinuxUsbDevices by fetching information from maps to
* populate fields
*
* @param devPath
* The device node path.
* @param vid
* The default (parent) vendor ID
* @param pid
* The default (parent) product ID
* @return A LinuxUsbDevice corresponding to this device
*/
private static LinuxUsbDevice getDeviceAndChildren(String devPath, String vid, String pid) {
String vendorId = vendorIdMap.getOrDefault(devPath, vid);
String productId = productIdMap.getOrDefault(devPath, pid);
List childPaths = hubMap.getOrDefault(devPath, new ArrayList());
List usbDevices = new ArrayList<>();
for (String path : childPaths) {
usbDevices.add(getDeviceAndChildren(path, vendorId, productId));
}
Collections.sort(usbDevices);
return new LinuxUsbDevice(nameMap.getOrDefault(devPath, vendorId + ":" + productId),
vendorMap.getOrDefault(devPath, ""), vendorId, productId, serialMap.getOrDefault(devPath, ""),
usbDevices.toArray(new UsbDevice[usbDevices.size()]));
}
}
