HttpRouteDirector (Apache HttpClient 5.4.1 API)

All Known Implementing Classes:

BasicRouteDirector
```
@Contract(threading=STATELESS)
public interface HttpRouteDirector
```
Provides directions on establishing a route. Implementations of this interface compare a planned route with a tracked route and indicate the next step required.

Since:

4.0

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`COMPLETE` Indicates that the route is complete.
`static int`	`CONNECT_PROXY` Step: open connection to proxy.
`static int`	`CONNECT_TARGET` Step: open connection to target.
`static int`	`LAYER_PROTOCOL` Step: layer protocol (over tunnel).
`static int`	`TUNNEL_PROXY` Step: tunnel through proxy to other proxy.
`static int`	`TUNNEL_TARGET` Step: tunnel through proxy to target.
`static int`	`UNREACHABLE` Indicates that the route can not be established at all.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type Method and Description

int nextStep(RouteInfo plan, RouteInfo fact)
Provides the next step.

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`int`	`nextStep(RouteInfo plan, RouteInfo fact)` Provides the next step.

- Field Detail
  - UNREACHABLE
```
static final int UNREACHABLE
```
    Indicates that the route can not be established at all.
    
    See Also:
    
    Constant Field Values
  - COMPLETE
```
static final int COMPLETE
```
    Indicates that the route is complete.
    
    See Also:
    
    Constant Field Values
  - CONNECT_TARGET
```
static final int CONNECT_TARGET
```
    Step: open connection to target.
    
    See Also:
    
    Constant Field Values
  - CONNECT_PROXY
```
static final int CONNECT_PROXY
```
    Step: open connection to proxy.
    
    See Also:
    
    Constant Field Values
  - TUNNEL_TARGET
```
static final int TUNNEL_TARGET
```
    Step: tunnel through proxy to target.
    
    See Also:
    
    Constant Field Values
  - TUNNEL_PROXY
```
static final int TUNNEL_PROXY
```
    Step: tunnel through proxy to other proxy.
    
    See Also:
    
    Constant Field Values
  - LAYER_PROTOCOL
```
static final int LAYER_PROTOCOL
```
    Step: layer protocol (over tunnel).
    
    See Also:
    
    Constant Field Values
- Method Detail
  - nextStep
```
int nextStep(RouteInfo plan,
             RouteInfo fact)
```
    Provides the next step.
    
    Parameters:
    
    plan - the planned route
    
    fact - the currently established route, or null if nothing is established
    
    Returns:
    
    one of the constants defined in this interface, indicating either the next step to perform, or success, or failure. 0 is for success, a negative value for failure.

Interface HttpRouteDirector

Field Summary

Method Summary

Field Detail

UNREACHABLE

COMPLETE

CONNECT_TARGET

CONNECT_PROXY

TUNNEL_TARGET

TUNNEL_PROXY

LAYER_PROTOCOL

Method Detail

nextStep