com.jcabi.http.wire

Class CachingWire

java.lang.Object

com.jcabi.http.wire.CachingWire

All Implemented Interfaces:

Wire

@Immutable
public final class CachingWire
extends Object
implements Wire

Wire that caches GET requests (for five minutes).

This decorator can be used when you want to avoid duplicate GET requests to load-sensitive resources, for example:

 String html = new JdkRequest("http://goggle.com")
   .through(CachingWire.class)
   .header(HttpHeaders.ACCEPT, MediaType.TEXT_PLAIN)
   .fetch()
   .body();

Since 1.5, you can also configure it to flush the entire cache on certain request URI's, for example:

new JdkRequest(uri)
   .through(CachingWire.class, "GET /save/.*")
   .uri().path("/save/123").back()
   .fetch();

The regular expression provided will be used against a string constructed as an HTTP method, space, path of the URI together with query part.

The class is immutable and thread-safe.

Since:

1.0

Version:

$Id$

Author:

Yegor Bugayenko ([email protected])

Constructor Summary

Constructors

Constructor and Description
CachingWire(Wire wire) Public ctor.
CachingWire(Wire wire, String flsh) Public ctor.

Method Summary

Methods

Modifier and Type	Method and Description
Response	send(Request req, String home, String method, Collection<Map.Entry<String,String>> headers, InputStream content) Send request and return response.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CachingWire

public CachingWire(@NotNull(message="wire can\'t be NULL")
           Wire wire)

Public ctor.

Parameters:

wire - Original wire

CachingWire

public CachingWire(@NotNull(message="wire can\'t be NULL")
           Wire wire,
           @NotNull(message="regular expression is NULL")
           String flsh)

Public ctor.

Parameters:

wire - Original wire

flsh - Flushing regular expression

Since:

1.5

Method Detail

send

public Response send(Request req,
            String home,
            String method,
            Collection<Map.Entry<String,String>> headers,
            InputStream content)
              throws IOException

Description copied from interface: Wire

Send request and return response.

Specified by:

send in interface Wire

Parameters:

req - Request

home - URI to fetch

method - HTTP method

headers - Headers

content - HTTP body

Returns:

Response obtained

Throws:

IOException - if fails