| Conditions | 10 |
| Total Lines | 54 |
| Code Lines | 36 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
Complex classes like client.NewClientFromConfig often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
| 1 | package client |
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| 16 | func NewClientFromConfig( |
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| 17 | timeoutInMilliseconds int, |
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| 18 | socks5Url *url.URL, |
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| 19 | userAgent string, |
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| 20 | useCookieJar bool, |
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| 21 | cookies []*http.Cookie, |
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| 22 | u *url.URL, |
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| 23 | ) (*http.Client, error) { |
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| 24 | transport := http.Transport{ |
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| 25 | MaxIdleConns: 100, |
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| 26 | IdleConnTimeout: 90 * time.Second, |
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| 27 | TLSHandshakeTimeout: 10 * time.Second, |
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| 28 | ExpectContinueTimeout: 1 * time.Second, |
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| 29 | } |
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| 30 | |||
| 31 | c := &http.Client{ |
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| 32 | Timeout: time.Millisecond * time.Duration(timeoutInMilliseconds), |
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| 33 | Transport: &transport, |
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| 34 | } |
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| 35 | |||
| 36 | if useCookieJar { |
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| 37 | jar, err := cookiejar.New(nil) |
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| 38 | if err != nil { |
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| 39 | return nil, errors.Wrap(err, "NewClientFromConfig: failed to create cookie jar") |
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| 40 | } |
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| 41 | c.Jar = jar |
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| 42 | } |
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| 43 | |||
| 44 | if c.Jar != nil { |
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| 45 | c.Jar.SetCookies(u, cookies) |
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| 46 | } |
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| 47 | |||
| 48 | if len(cookies) > 0 && c.Jar == nil { |
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| 49 | c.Jar = cookie.NewStatelessJar(cookies) |
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| 50 | } |
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| 51 | |||
| 52 | if socks5Url != nil { |
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| 53 | tbDialer, err := proxy.FromURL(socks5Url, proxy.Direct) |
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| 54 | if err != nil { |
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| 55 | return nil, errors.Wrap(err, "NewClientFromConfig: failed to create socks5 proxy") |
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| 56 | } |
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| 57 | |||
| 58 | transport.DialContext = func(ctx context.Context, network, addr string) (conn net.Conn, e error) { |
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| 59 | return tbDialer.Dial(network, addr) |
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| 60 | } |
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| 61 | } |
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| 62 | |||
| 63 | var err error |
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| 64 | c.Transport, err = decorateTransportWithUserAgentDecorator(c.Transport, userAgent) |
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| 65 | if err != nil { |
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| 66 | return nil, errors.Wrap(err, "NewClientFromConfig: failed to decorate transport") |
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| 67 | } |
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| 68 | |||
| 69 | return c, nil |
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| 70 | } |
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| 71 |