Example usage for org.apache.http.client.cache HttpCacheEntry getVariantMap

Introduction

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

Prototype

public Map<String, String> getVariantMap() 

Source Link

Document

Returns an index about where in the cache different variants for a given resource are stored.

Usage

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

HttpCacheEntry doGetUpdatedParentEntry(final String requestId, final HttpCacheEntry existing,
        final HttpCacheEntry entry, final String variantKey, final String variantCacheKey) throws IOException {
    HttpCacheEntry src = existing;
    if (src == null) {
        src = entry;// w  w  w.  j  av  a2  s  .  c  o m
    }

    Resource resource = resourceFactory.copy(requestId, src.getResource());
    Map<String, String> variantMap = new HashMap<String, String>(src.getVariantMap());
    variantMap.put(variantKey, variantCacheKey);
    return new HttpCacheEntry(src.getRequestDate(), src.getResponseDate(), src.getStatusLine(),
            src.getAllHeaders(), resource, variantMap);
}

---

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

public HttpCacheEntry getCacheEntry(HttpHost host, HttpRequest request) throws IOException {
    HttpCacheEntry root = storage.getEntry(uriExtractor.getURI(host, request));
    if (root == null)
        return null;
    if (!root.hasVariants())
        return root;
    String variantCacheKey = root.getVariantMap().get(uriExtractor.getVariantKey(request, root));
    if (variantCacheKey == null)
        return null;
    return storage.getEntry(variantCacheKey);
}

---

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

public Map<String, Variant> getVariantCacheEntriesWithEtags(HttpHost host, HttpRequest request)
        throws IOException {
    Map<String, Variant> variants = new HashMap<String, Variant>();
    HttpCacheEntry root = storage.getEntry(uriExtractor.getURI(host, request));
    if (root == null || !root.hasVariants())
        return variants;
    for (Map.Entry<String, String> variant : root.getVariantMap().entrySet()) {
        String variantKey = variant.getKey();
        String variantCacheKey = variant.getValue();
        addVariantWithEtag(variantKey, variantCacheKey, variants);
    }/* ww  w .jav  a2s . c  o m*/
    return variants;
}

---

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

/**
 * Remove cache entries from the cache that are no longer fresh or
 * have been invalidated in some way./*from  w w w  .ja va 2  s . c  o m*/
 *
 * @param host The backend host we are talking to
 * @param req The HttpRequest to that host
 */
public void flushInvalidatedCacheEntries(HttpHost host, HttpRequest req) {
    if (requestShouldNotBeCached(req)) {
        log.debug("Request should not be cached");

        String theUri = cacheKeyGenerator.getURI(host, req);

        HttpCacheEntry parent = getEntry(theUri);

        log.debug("parent entry: " + parent);

        if (parent != null) {
            for (String variantURI : parent.getVariantMap().values()) {
                flushEntry(variantURI);
            }
            flushEntry(theUri);
        }
        URL reqURL = getAbsoluteURL(theUri);
        if (reqURL == null) {
            log.error("Couldn't transform request into valid URL");
            return;
        }
        Header clHdr = req.getFirstHeader("Content-Location");
        if (clHdr != null) {
            String contentLocation = clHdr.getValue();
            if (!flushAbsoluteUriFromSameHost(reqURL, contentLocation)) {
                flushRelativeUriFromSameHost(reqURL, contentLocation);
            }
        }
        Header lHdr = req.getFirstHeader("Location");
        if (lHdr != null) {
            flushAbsoluteUriFromSameHost(reqURL, lHdr.getValue());
        }
    }
}

---