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Qiniu Cloud Storage SDK for Java
There is a newer version: 7.2.29.3
# 七牛IoT视频云JAVA SDK

## Features

- 设备管理
	- [x] 新建设备: deviceManager.createDevice(appid,deviceName)
	- [x] 新建网关设备: deviceManager.createDevice(appid, Device)
	- [x] 获取设备列表:deviceManager.listDevice(appid,prefix,marker,limit,online)
	- [x] 查询设备: deviceManager.getDevice(appid,deviceName)
	- [x] 更新设备信息: deviceManager.updateDevice(appid,deviceName,operations)
	- [x] 添加dak: deviceManager.addDeviceKey(appid,deviceName)
	- [x] 通过dak查询设备: deviceManager.getDeviceByAccessKey(dak)
	- [x] 删除dak: deviceManager.deleteDeviceKey(appid,deviceName,dak)
	- [x] 获取设备的dak列表: deviceManager.queryDeviceKey(appid,deviceName1)
	- [x] 将dak移到另外的设备上去: deviceManager.cloneDeviceKey(appid,fromDeviceName,toDeviceName,cleanSelfKeys,deleteDevice,dak)
- dtoken生成
	- [x] 生成获取设备状态的token: auth.generateLinkingDeviceStatusTokenWithExpires(appid,deviceName,expires,actions)
	- [x] 生成获取视频的token: auth.generateLinkingDeviceVodTokenWithExpires(appid,deviceName,expires)
	- [x] 生成具有多种功能的token: auth.generateLinkingDeviceTokenWithExpires(appid,deviceName,expires)

## Contents


- [Usage](#usage)
	- [设备管理](#设备管理)
	     - [新建设备](#新建设备)
		- [新建网关设备](#新建网关设备)
		- [获取设备列表](#获取设备列表)
		- [查询设备](#查询设备)
		- [更新设备信息](#更新设备信息)
		- [添加dak](#添加dak)
		- [通过dak查询设备](#通过dak查询设备)
		- [删除dak](#删除dak)
		- [获取设备的dak列表](#获取设备的dak列表)
		- [将dak移到另外的设备上去](#将dak移到另外的设备上去)
	- [dtoken](#dtoken)
        


## Usage

### Init

```java
Auth auth = Auth.create(testAk,testSk);
LinkingDeviceManager deviceManager = new LinkingDeviceManager(auth);
```

### 设备管理

#### 新建设备

```java
deviceManager.createDevice(appid,deviceName);
```

#### 新建网关设备

```java
Device device = new Device();
device.setDeviceName("testName");
device.setType(1);
device.setMaxChannel(64);
deviceManager.createDevice(appid, device);
```
#### 获取设备列表

```java
DeviceListing deviceslist = deviceManager.listDevice(appid,prefix,marker,limit,online)
Device[] devices =  deviceslist.items;
String marker =  deviceslist.marker;
```
#### 查询设备

```java
Device device = deviceManager.getDevice(appid,deviceName);
```
#### 更新设备信息

```java
PatchOperation[] operations={new PatchOperation("replace","segmentExpireDays",9)};
Device device= deviceManager.updateDevice(appid,deviceName,operations);
//返回更新后的设备
```
#### 添加dak

```java
DeviceKey[] keys = deviceManager.addDeviceKey(appid,deviceName);
```
#### 通过dak查询设备

```java
Device device = deviceManager.getDeviceByAccessKey(dak);
```
#### 删除dak

```java
deviceManager.deleteDeviceKey(appid,deviceName,dak);
```
#### 获取设备的dak列表

```java
DeviceKey[] keys = deviceManager.queryDeviceKey(appid,deviceName);
```
#### 将dak移到另外的设备上去

```java
deviceManager.cloneDeviceKey(appid,fromDeviceName,toDeviceName2,true, false,dak)
```


### dtoken

#### 生成具有多种功能的token:
```java
String[] = new
String token = auth.generateLinkingDeviceTokenWithExpires(appid,deviceName,expires,actions);
```


#### 生成获取视频的token: 
```java
String token = auth.generateLinkingDeviceVodTokenWithExpires(appid,deviceName,expires)
```
#### 生成获取设备状态的token:
```java
String[] actions = new String[]{Auth.DTOKEN_ACTION_STATUS,Auth.DTOKEN_ACTION_VOD,Auth.DTOKEN_ACTION_TUTK};
String token =  auth.generateLinkingDeviceStatusTokenWithExpires(appid,deviceName,expires)
```
视频播放相关 api 编程模型说明：
如用户请求视频相关api(例如：[https://developer.qiniu.com/linking/api/5650/playback](https://developer.qiniu.com/linking/api/5650/playback))时进行业务服务器中转，会造成访问路径比较长, 因此建议服务端只进行dtoken的签算并提供给播放端，播放端直接请求视频播放相关的API，提升播放体验。
具体下token签算参考 [https://developer.qiniu.com/linking/api/5680/the-signature-in-the-url](https://developer.qiniu.com/linking/api/5680/the-signature-in-the-url)
![WeChatWorkScreenshot_7a66f4d2-943f-4e19-bc09-04a394fe69f6](https://user-images.githubusercontent.com/34932312/68568688-41e01a00-0497-11ea-983c-9274a0ffb19f.png)