Example usage for org.apache.http.client.cache CacheResponseStatus VALIDATED

Introduction

In this page you can find the example usage for org.apache.http.client.cache CacheResponseStatus VALIDATED.

Prototype

CacheResponseStatus VALIDATED

To view the source code for org.apache.http.client.cache CacheResponseStatus VALIDATED.

Click Source Link

Document

The response was generated from the cache after validating the entry with the origin server.

Usage

From source file:org.esigate.cache.CacheAdapter.java

public ClientExecChain wrapCachingHttpClient(final ClientExecChain wrapped) {
    return new ClientExecChain() {

        /**//  w  w w . java2  s.c  o  m
         * Removes client http cache directives like "Cache-control" and "Pragma". Users must not be able to bypass
         * the cache just by making a refresh in the browser. Generates X-cache header.
         * 
         */
        @Override
        public CloseableHttpResponse execute(HttpRoute route, HttpRequestWrapper request,
                HttpClientContext httpClientContext, HttpExecutionAware execAware)
                throws IOException, HttpException {
            OutgoingRequestContext context = OutgoingRequestContext.adapt(httpClientContext);

            // Switch route for the cache to generate the right cache key
            CloseableHttpResponse response = wrapped.execute(route, request, context, execAware);

            // Remove previously added Cache-control header
            if (request.getRequestLine().getMethod().equalsIgnoreCase("GET")
                    && (staleWhileRevalidate > 0 || staleIfError > 0)) {
                response.removeHeader(response.getLastHeader("Cache-control"));
            }
            // Add X-cache header
            if (xCacheHeader) {
                if (context != null) {
                    CacheResponseStatus cacheResponseStatus = (CacheResponseStatus) context
                            .getAttribute(HttpCacheContext.CACHE_RESPONSE_STATUS);
                    String xCacheString;
                    if (cacheResponseStatus.equals(CacheResponseStatus.CACHE_HIT)) {
                        xCacheString = "HIT";
                    } else if (cacheResponseStatus.equals(CacheResponseStatus.VALIDATED)) {
                        xCacheString = "VALIDATED";
                    } else {
                        xCacheString = "MISS";
                    }
                    xCacheString += " from " + route.getTargetHost().toHostString();
                    xCacheString += " (" + request.getRequestLine().getMethod() + " "
                            + request.getRequestLine().getUri() + ")";
                    response.addHeader("X-Cache", xCacheString);
                }
            }

            // Remove Via header
            if (!viaHeader && response.containsHeader("Via")) {
                response.removeHeaders("Via");
            }
            return response;
        }
    };
}

---

From source file:org.apache.http.impl.client.cache.CachingExec.java

private void recordCacheUpdate(final HttpContext context) {
    cacheUpdates.getAndIncrement();
    setResponseStatus(context, CacheResponseStatus.VALIDATED);
}

---

From source file:org.apache.http.impl.client.cache.CachingHttpAsyncClient.java

private void recordCacheUpdate(final HttpCacheContext clientContext) {
    this.cacheUpdates.getAndIncrement();
    setResponseStatus(clientContext, CacheResponseStatus.VALIDATED);
}

---

From source file:org.apache.http.impl.client.cache.CachingHttpClient.java

private void recordCacheUpdate(HttpContext context) {
    cacheUpdates.getAndIncrement();
    setResponseStatus(context, CacheResponseStatus.VALIDATED);
}

---