rchargel /
hdfs-explorer
| Total Lines | 56 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
| 1 | package files |
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| 2 | |||
| 3 | import ( |
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| 4 | "os/user" |
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| 5 | |||
| 6 | "github.com/colinmarc/hdfs" |
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| 7 | "github.com/colinmarc/hdfs/rpc" |
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| 8 | ) |
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| 9 | |||
| 10 | // FileSystem defines a simple pointer to an HDFS file system. |
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| 11 | type FileSystem struct { |
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| 12 | |||
| 13 | // Name is a unique identifier for the file system. |
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| 14 | Name string |
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| 15 | |||
| 16 | // Description should be a brief note. |
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| 17 | Description string |
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| 18 | |||
| 19 | // Addresses are a list of the name nodes for the file system. |
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| 20 | Addresses []string |
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| 21 | } |
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| 22 | |||
| 23 | func (r *FileSystem) user() (string, error) { |
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| 24 | user, err := user.Current() |
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| 25 | if err == nil { |
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| 26 | return user.Username, nil |
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| 27 | } |
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| 28 | return "", err |
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| 29 | } |
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| 30 | |||
| 31 | // Connect opens a FileSystemClient. |
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| 32 | func (r *FileSystem) Connect() (FileSystemClient, error) { |
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| 33 | user, err := r.user() |
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| 34 | if err == nil { |
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| 35 | if conn, nerr := rpc.NewNamenodeConnectionWithOptions( |
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| 36 | rpc.NamenodeConnectionOptions{ |
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| 37 | Addresses: r.Addresses, |
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| 38 | User: user, |
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| 39 | }, |
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| 40 | ); nerr == nil { |
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| 41 | client, cerr := hdfs.NewClient( |
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| 42 | hdfs.ClientOptions{ |
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| 43 | Addresses: r.Addresses, |
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| 44 | Namenode: conn, |
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| 45 | User: user, |
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| 46 | }, |
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| 47 | ) |
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| 48 | if cerr == nil { |
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| 49 | return CreateHDFSFileSystemClient(r.Name, client), err |
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| 50 | } |
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| 51 | return nil, cerr |
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| 52 | } else { |
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| 53 | return nil, nerr |
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| 54 | } |
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| 55 | } |
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| 56 | return nil, err |
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| 57 | } |
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| 58 |
