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update branch of client #1469

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Feb 15, 2022
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update branch of client #1469

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25 changes: 4 additions & 21 deletions docs-2.0/14.client/3.nebula-cpp-client.md
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Expand Up @@ -24,7 +24,7 @@
- （推荐）如果需要安装指定版本的 Nebula CPP，请使用选项`--branch`指定分支。例如安装 v{{ cpp.release }}发布版本，请执行如下命令：

```bash
$ git clone --branch v{{ cpp.release }} https://github.com/vesoft-inc/nebula-cpp.git
$ git clone --branch {{cpp.branch}} https://github.com/vesoft-inc/nebula-cpp.git
```

- 如果需要安装日常开发版本，请执行如下命令下载`master`分支的源码：
Expand Down Expand Up @@ -83,7 +83,7 @@

将 CPP 文件编译为可执行文件即可。接下来以`SessionExample.cpp`为例，介绍如何操作。

1. 使用[示例代码](https://github.com/vesoft-inc/nebula-cpp/blob/master/examples/SessionExample.cpp)创建`SessionExample.cpp`文件。
1. 使用[示例代码](https://github.com/vesoft-inc/nebula-cpp/blob/{{cpp.branch}}/examples/SessionExample.cpp)创建`SessionExample.cpp`文件。

2. 编译文件，命令如下：

Expand All @@ -103,22 +103,5 @@

### 核心代码

详细示例请参见 [SessionExample](https://github.com/vesoft-inc/nebula-cpp/blob/master/examples/SessionExample.cpp)。

```C++
nebula::init(&argc, &argv);
auto address = "192.168.xx.1:9669";
nebula::ConnectionPool pool;
pool.init({address}, nebula::Config{});
auto session = pool.getSession("root", "nebula");

auto result = session.execute("SHOW HOSTS");
std::cout << *result.data;

std::atomic_bool complete{false};
session.asyncExecute("SHOW HOSTS", [&complete](nebula::ExecutionResponse&& cbResult) {
std::cout << *cbResult.data;
complete.store(true);
});
session.release();
```
详细示例请参见 [SessionExample](https://github.com/vesoft-inc/nebula-cpp/blob/{{cpp.branch}}/examples/SessionExample.cpp)。

50 changes: 3 additions & 47 deletions docs-2.0/14.client/4.nebula-java-client.md
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Expand Up @@ -20,7 +20,7 @@
- （推荐）如果需要使用指定版本的 Nebula Java，请使用选项`--branch`指定分支。例如使用 v{{ java.release }}发布版本，请执行如下命令：

```bash
$ git clone --branch v{{ java.release }} https://github.com/vesoft-inc/nebula-java.git
$ git clone --branch {{java.branch}} https://github.com/vesoft-inc/nebula-java.git
```

- 如果需要安装日常开发版本，请执行如下命令下载`master`分支的源码：
Expand Down Expand Up @@ -64,49 +64,5 @@

### 核心代码

详细示例请参见 [GraphClientExample](https://github.com/vesoft-inc/nebula-java/blob/master/examples/src/main/java/com/vesoft/nebula/examples/GraphClientExample.java)。

```java
NebulaPool pool = new NebulaPool();
Session session = null;
try {
NebulaPoolConfig nebulaPoolConfig = new NebulaPoolConfig();
nebulaPoolConfig.setMaxConnSize(100);
List<HostAddress> addresses = Arrays.asList(new HostAddress("192.168.xx.1", 9669),
new HostAddress("192.168.xx.2", 9670));
pool.init(addresses, nebulaPoolConfig);
session = pool.getSession("root", "nebula", false);

//create space
String space = "test";
String createSpace = "CREATE SPACE IF NOT EXISTS " + space + " (partition_num=15, replica_factor=1, vid_type=fixed_string(30)); ";
ResultSet resp = session.execute(createSpace);

//create schema
String createSchema = "USE " + space + "; CREATE TAG IF NOT EXISTS person(name string, age int);"
+ "CREATE EDGE IF NOT EXISTS like(likeness double)";
ResultSet resp = session.execute(createSchema);

//insert vertex
String insertVertexes = "INSERT VERTEX person(name, age) VALUES " + "'Bob':('Bob', 10), "
+ "'Lily':('Lily', 9), " + "'Tom':('Tom', 10), " + "'Jerry':('Jerry', 13), "
+ "'John':('John', 11);";
ResultSet resp = session.execute(insertVertexes);

// inert edge
String insertEdges = "INSERT EDGE like(likeness) VALUES " + "'Bob'->'Lily':(80.0), "
+ "'Bob'->'Tom':(70.0), " + "'Lily'->'Jerry':(84.0), " + "'Tom'->'Jerry':(68.3), "
+ "'Bob'->'John':(97.2);";
ResultSet resp = session.execute(insertEdges);

// query
String query = "GO FROM \"Bob\" OVER like " + "YIELD properties($$).name, properties($$).age, properties(edge).likeness";
ResultSet resp = session.execute(query);
printResult(resp);
}finally {
if (session != null) {
session.release();
}
pool.close();
}
```
详细示例请参见 [GraphClientExample](https://github.com/vesoft-inc/nebula-java/blob/{{java.branch}}/examples/src/main/java/com/vesoft/nebula/examples/GraphClientExample.java)。

67 changes: 3 additions & 64 deletions docs-2.0/14.client/5.nebula-python-client.md
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Expand Up @@ -20,7 +20,7 @@
### pip 安装

```bash
$ pip install nebula2-python==<version>
$ pip install nebula3-python==<version>
```

### 克隆源码安装
Expand All @@ -30,7 +30,7 @@ $ pip install nebula2-python==<version>
- （推荐）如果需要安装指定版本的 Nebula Python，请使用选项`--branch`指定分支。例如安装 v{{ python.release }}发布版本，请执行如下命令：

```bash
$ git clone --branch v{{ python.release }} https://github.com/vesoft-inc/nebula-python.git
$ git clone --branch {{python.branch}} https://github.com/vesoft-inc/nebula-python.git
```

- 如果需要安装日常开发版本，请执行如下命令下载`master`分支的源码：
Expand All @@ -53,66 +53,5 @@ $ pip install nebula2-python==<version>

## 核心代码

详细示例请参见 [Example](https://github.com/vesoft-inc/nebula-python/tree/master/example)。
详细示例请参见 [Example](https://github.com/vesoft-inc/nebula-python/tree/{{python.branch}}/example)。

### 连接 Graph 服务

```python
# 定义配置
config = Config()
config.max_connection_pool_size = 10
# 初始化连接池
connection_pool = ConnectionPool()
# 如果给定的服务器正常，则返回 true，否则返回 false。
ok = connection_pool.init([('192.168.xx.1', 9669)], config)

# 方法 1：控制连接自行释放。
# 从连接池中获取会话
session = connection_pool.get_session('root', 'nebula')

# 选择图空间
session.execute('USE basketballplayer')

# 执行查看 TAG 命令
result = session.execute('SHOW TAGS')
print(result)

# 释放会话
session.release()

# 方法 2：使用 session_context，会话将被自动释放。
with connection_pool.session_context('root', 'nebula') as session:
session.execute('USE basketballplayer;')
result = session.execute('SHOW TAGS;')
print(result)

# 关闭连接池
connection_pool.close()
```

### 连接 Storage 服务

```python
# 设置所有 Meta 服务地址
meta_cache = MetaCache([('192.168.xx.1', 9559),
('192.168.xx.2', 9559),
('192.168.xx.3', 9559)],
50000)
graph_storage_client = GraphStorageClient(meta_cache)

resp = graph_storage_client.scan_vertex(
space_name='ScanSpace',
tag_name='person')
while resp.has_next():
result = resp.next()
for vertex_data in result:
print(vertex_data)

resp = graph_storage_client.scan_edge(
space_name='ScanSpace',
edge_name='friend')
while resp.has_next():
result = resp.next()
for edge_data in result:
print(edge_data)
```
40 changes: 3 additions & 37 deletions docs-2.0/14.client/6.nebula-go-client.md
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Expand Up @@ -19,7 +19,7 @@
- （推荐）如果需要下载指定版本的 Nebula Go，请使用选项`--branch`指定分支。例如安装 v{{ go.release }}发布版本，请执行如下命令：

```bash
$ git clone --branch v{{ go.release }} https://github.com/vesoft-inc/nebula-go.git
$ git clone --branch {{go.branch}} https://github.com/vesoft-inc/nebula-go.git
```

- 如果需要安装日常开发版本，请执行如下命令下载`master`分支的源码：
Expand All @@ -36,43 +36,9 @@
$ go get -u -v github.com/vesoft-inc/nebula-go@<tag>
```

`tag`：指定分支。例如`master`或`v{{ go.release }}`。
`tag`：指定分支。例如`master`或`{{go.branch}}`。

## 核心代码

详细示例请参见 [graph_client_basic_example](https://github.com/vesoft-inc/nebula-go/blob/master/basic_example/graph_client_basic_example.go) 和 [graph_client_goroutines_example](https://github.com/vesoft-inc/nebula-go/blob/master/gorountines_example/graph_client_goroutines_example.go)。
详细示例请参见 [graph_client_basic_example](https://github.com/vesoft-inc/nebula-go/blob/{{go.branch}}/basic_example/graph_client_basic_example.go) 和 [graph_client_goroutines_example](https://github.com/vesoft-inc/nebula-go/blob/{{go.branch}}/gorountines_example/graph_client_goroutines_example.go)。

```bash
const (
address = "192.168.xx.1"
port = 9669
username = "root"
password = "nebula"
)

func main() {
hostAddress := nebula.HostAddress{Host: address, Port: port}
hostList := []nebula.HostAddress{hostAddress}
testPoolConfig := nebula.GetDefaultConf()
pool, err := nebula.NewConnectionPool(hostList, testPoolConfig, log)
defer pool.Close()
session, err := pool.GetSession(username, password)
defer session.Release()

checkResultSet := func(prefix string, res *nebula.ResultSet) {
if !res.IsSucceed() {
log.Fatal(fmt.Sprintf("%s, ErrorCode: %v, ErrorMsg: %s", prefix, res.GetErrorCode(), res.GetErrorMsg()))
}
}
{
createSchema := "CREATE SPACE IF NOT EXISTS basic_example_space(vid_type=FIXED_STRING(20)); " +
"USE basic_example_space;" +
"CREATE TAG IF NOT EXISTS person(name string, age int);" +
"CREATE EDGE IF NOT EXISTS like(likeness double)"
resultSet, err := session.Execute(createSchema)
checkResultSet(createSchema, resultSet)
}
fmt.Print("\n")
log.Info("Nebula Go Client Basic Example Finished")
}
```