org.apache.http.conn.routing

## Class HttpRoute

- java.lang.Object
- - org.apache.http.conn.routing.HttpRoute

- All Implemented Interfaces:
    Cloneable, RouteInfo

      @Contract(threading=IMMUTABLE)
      public final class HttpRoute
      extends Object
      implements RouteInfo, Cloneable

  The route for a request.
  Since:
    4.0

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from interface org.apache.http.conn.routing.RouteInfo

      `RouteInfo.LayerType, RouteInfo.TunnelType`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `HttpRoute(org.apache.http.HttpHost target)` Creates a new direct insecure route.
    `HttpRoute(org.apache.http.HttpHost target, org.apache.http.HttpHost proxy)` Creates a new plain route through a proxy.
    `HttpRoute(org.apache.http.HttpHost target, InetAddress local, boolean secure)` Creates a new direct route.
    `HttpRoute(org.apache.http.HttpHost target, InetAddress local, org.apache.http.HttpHost[] proxies, boolean secure, RouteInfo.TunnelType tunnelled, RouteInfo.LayerType layered)` Creates a new route with all attributes specified explicitly.
    `HttpRoute(org.apache.http.HttpHost target, InetAddress local, org.apache.http.HttpHost proxy, boolean secure)` Creates a new route through a proxy.
    `HttpRoute(org.apache.http.HttpHost target, InetAddress local, org.apache.http.HttpHost proxy, boolean secure, RouteInfo.TunnelType tunnelled, RouteInfo.LayerType layered)` Creates a new route with at most one proxy.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `Object` | `clone()`
    `boolean` | `equals(Object obj)` Compares this route to another.
    `int` | `getHopCount()` Obtains the number of hops in this route.
    `org.apache.http.HttpHost` | `getHopTarget(int hop)` Obtains the target of a hop in this route.
    `RouteInfo.LayerType` | `getLayerType()` Obtains the layering type of this route.
    `InetAddress` | `getLocalAddress()` Obtains the local address to connect from.
    `InetSocketAddress` | `getLocalSocketAddress()`
    `org.apache.http.HttpHost` | `getProxyHost()` Obtains the first proxy host.
    `org.apache.http.HttpHost` | `getTargetHost()` Obtains the target host.
    `RouteInfo.TunnelType` | `getTunnelType()` Obtains the tunnel type of this route.
    `int` | `hashCode()` Generates a hash code for this route.
    `boolean` | `isLayered()` Checks whether this route includes a layered protocol.
    `boolean` | `isSecure()` Checks whether this route is secure.
    `boolean` | `isTunnelled()` Checks whether this route is tunnelled through a proxy.
    `String` | `toString()` Obtains a description of this route.

    - ### Methods inherited from class java.lang.Object

      `finalize, getClass, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### HttpRoute

          public HttpRoute(org.apache.http.HttpHost target,
                   InetAddress local,
                   org.apache.http.HttpHost[] proxies,
                   boolean secure,
                   RouteInfo.TunnelType tunnelled,
                   RouteInfo.LayerType layered)

      Creates a new route with all attributes specified explicitly.
      Parameters:
        `target` - the host to which to route
        `local` - the local address to route from, or `null` for the default
        `proxies` - the proxy chain to use, or `null` for a direct route
        `secure` - `true` if the route is (to be) secure, `false` otherwise
        `tunnelled` - the tunnel type of this route
        `layered` - the layering type of this route

    - #### HttpRoute

          public HttpRoute(org.apache.http.HttpHost target,
                   InetAddress local,
                   org.apache.http.HttpHost proxy,
                   boolean secure,
                   RouteInfo.TunnelType tunnelled,
                   RouteInfo.LayerType layered)

      Creates a new route with at most one proxy.
      Parameters:
        `target` - the host to which to route
        `local` - the local address to route from, or `null` for the default
        `proxy` - the proxy to use, or `null` for a direct route
        `secure` - `true` if the route is (to be) secure, `false` otherwise
        `tunnelled` - `true` if the route is (to be) tunnelled via the proxy, `false` otherwise
        `layered` - `true` if the route includes a layered protocol, `false` otherwise

    - #### HttpRoute

          public HttpRoute(org.apache.http.HttpHost target,
                   InetAddress local,
                   boolean secure)

      Creates a new direct route. That is a route without a proxy.
      Parameters:
        `target` - the host to which to route
        `local` - the local address to route from, or `null` for the default
        `secure` - `true` if the route is (to be) secure, `false` otherwise

    - #### HttpRoute

          public HttpRoute(org.apache.http.HttpHost target)

      Creates a new direct insecure route.
      Parameters:
        `target` - the host to which to route

    - #### HttpRoute

          public HttpRoute(org.apache.http.HttpHost target,
                   InetAddress local,
                   org.apache.http.HttpHost proxy,
                   boolean secure)

      Creates a new route through a proxy. When using this constructor, the `proxy` MUST be given. For convenience, it is assumed that a secure connection will be layered over a tunnel through the proxy.
      Parameters:
        `target` - the host to which to route
        `local` - the local address to route from, or `null` for the default
        `proxy` - the proxy to use
        `secure` - `true` if the route is (to be) secure, `false` otherwise

    - #### HttpRoute

          public HttpRoute(org.apache.http.HttpHost target,
                   org.apache.http.HttpHost proxy)

      Creates a new plain route through a proxy.
      Parameters:
        `target` - the host to which to route
        `proxy` - the proxy to use
      Since:
        4.3

  - ### Method Detail

    - #### getTargetHost

          public org.apache.http.HttpHost getTargetHost()

      Description copied from interface: `RouteInfo`
      Obtains the target host.
      Specified by:
        `getTargetHost` in interface `RouteInfo`
      Returns:
        the target host

    - #### getLocalAddress

          public InetAddress getLocalAddress()

      Description copied from interface: `RouteInfo`
      Obtains the local address to connect from.
      Specified by:
        `getLocalAddress` in interface `RouteInfo`
      Returns:
        the local address, or `null`

    - #### getLocalSocketAddress

          public InetSocketAddress getLocalSocketAddress()

    - #### getHopCount

          public int getHopCount()

      Description copied from interface: `RouteInfo`
      Obtains the number of hops in this route. A direct route has one hop. A route through a proxy has two hops. A route through a chain of n proxies has n+1 hops.
      Specified by:
        `getHopCount` in interface `RouteInfo`
      Returns:
        the number of hops in this route

    - #### getHopTarget

          public org.apache.http.HttpHost getHopTarget(int hop)

      Description copied from interface: `RouteInfo`
      Obtains the target of a hop in this route. The target of the last hop is the `target host`, the target of previous hops is the respective proxy in the chain. For a route through exactly one proxy, target of hop 0 is the proxy and target of hop 1 is the target host.
      Specified by:
        `getHopTarget` in interface `RouteInfo`
      Parameters:
        `hop` - index of the hop for which to get the target, 0 for first
      Returns:
        the target of the given hop

    - #### getProxyHost

          public org.apache.http.HttpHost getProxyHost()

      Description copied from interface: `RouteInfo`
      Obtains the first proxy host.
      Specified by:
        `getProxyHost` in interface `RouteInfo`
      Returns:
        the first proxy in the proxy chain, or `null` if this route is direct

    - #### getTunnelType

          public RouteInfo.TunnelType getTunnelType()

      Description copied from interface: `RouteInfo`
      Obtains the tunnel type of this route. If there is a proxy chain, only end-to-end tunnels are considered.
      Specified by:
        `getTunnelType` in interface `RouteInfo`
      Returns:
        the tunnelling type

    - #### isTunnelled

          public boolean isTunnelled()

      Description copied from interface: `RouteInfo`
      Checks whether this route is tunnelled through a proxy. If there is a proxy chain, only end-to-end tunnels are considered.
      Specified by:
        `isTunnelled` in interface `RouteInfo`
      Returns:
        `true` if tunnelled end-to-end through at least one proxy, `false` otherwise

    - #### getLayerType

          public RouteInfo.LayerType getLayerType()

      Description copied from interface: `RouteInfo`
      Obtains the layering type of this route. In the presence of proxies, only layering over an end-to-end tunnel is considered.
      Specified by:
        `getLayerType` in interface `RouteInfo`
      Returns:
        the layering type

    - #### isLayered

          public boolean isLayered()

      Description copied from interface: `RouteInfo`
      Checks whether this route includes a layered protocol. In the presence of proxies, only layering over an end-to-end tunnel is considered.
      Specified by:
        `isLayered` in interface `RouteInfo`
      Returns:
        `true` if layered, `false` otherwise

    - #### isSecure

          public boolean isSecure()

      Description copied from interface: `RouteInfo`
      Checks whether this route is secure.
      Specified by:
        `isSecure` in interface `RouteInfo`
      Returns:
        `true` if secure, `false` otherwise

    - #### equals

          public boolean equals(Object obj)

      Compares this route to another.
      Overrides:
        `equals` in class `Object`
      Parameters:
        `obj` - the object to compare with
      Returns:
        `true` if the argument is the same route, `false`

    - #### hashCode

          public int hashCode()

      Generates a hash code for this route.
      Overrides:
        `hashCode` in class `Object`
      Returns:
        the hash code

    - #### toString

          public String toString()

      Obtains a description of this route.
      Overrides:
        `toString` in class `Object`
      Returns:
        a human-readable representation of this route

    - #### clone

          public Object clone()
                       throws CloneNotSupportedException

      Overrides:
        `clone` in class `Object`
      Throws:
        `CloneNotSupportedException`

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