Example usage for org.apache.http.client.methods HttpRequestWrapper getHeaders

Introduction

In this page you can find the example usage for org.apache.http.client.methods HttpRequestWrapper getHeaders.

Prototype

public Header[] getHeaders(String str) 

Source Link

Usage

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

private boolean mayCallBackend(final HttpRequestWrapper request) {
    for (final Header h : request.getHeaders(HeaderConstants.CACHE_CONTROL)) {
        for (final HeaderElement elt : h.getElements()) {
            if ("only-if-cached".equals(elt.getName())) {
                log.trace("Request marked only-if-cached");
                return false;
            }/*from w w w.  j a v  a 2  s .  c  om*/
        }
    }
    return true;
}

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

private boolean explicitFreshnessRequest(final HttpRequestWrapper request, final HttpCacheEntry entry,
        final Date now) {
    for (final Header h : request.getHeaders(HeaderConstants.CACHE_CONTROL)) {
        for (final HeaderElement elt : h.getElements()) {
            if (HeaderConstants.CACHE_CONTROL_MAX_STALE.equals(elt.getName())) {
                try {
                    final int maxstale = Integer.parseInt(elt.getValue());
                    final long age = validityPolicy.getCurrentAgeSecs(entry, now);
                    final long lifetime = validityPolicy.getFreshnessLifetimeSecs(entry);
                    if (age - lifetime > maxstale) {
                        return true;
                    }/*from  w ww .j  ava2  s.  com*/
                } catch (final NumberFormatException nfe) {
                    return true;
                }
            } else if (HeaderConstants.CACHE_CONTROL_MIN_FRESH.equals(elt.getName())
                    || HeaderConstants.CACHE_CONTROL_MAX_AGE.equals(elt.getName())) {
                return true;
            }
        }
    }
    return false;
}

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