Completed rewrite of re-validation code in the classic caching exec interceptor; added re-validation to the async caching exec interceptor

This commit is contained in:
Oleg Kalnichevski 2018-01-07 14:51:02 +01:00
parent f16ac3ec3b
commit 16147b1852
28 changed files with 487 additions and 374 deletions

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@ -32,6 +32,7 @@ import java.nio.ByteBuffer;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
@ -47,8 +48,10 @@ import org.apache.hc.client5.http.cache.HttpAsyncCacheStorage;
import org.apache.hc.client5.http.cache.HttpCacheEntry;
import org.apache.hc.client5.http.cache.ResourceFactory;
import org.apache.hc.client5.http.cache.ResourceIOException;
import org.apache.hc.client5.http.impl.ExecSupport;
import org.apache.hc.client5.http.impl.RequestCopier;
import org.apache.hc.client5.http.protocol.HttpClientContext;
import org.apache.hc.client5.http.schedule.SchedulingStrategy;
import org.apache.hc.client5.http.utils.DateUtils;
import org.apache.hc.core5.annotation.Contract;
import org.apache.hc.core5.annotation.ThreadingBehavior;
@ -87,21 +90,16 @@ import org.apache.hc.core5.util.ByteArrayBuffer;
public class AsyncCachingExec extends CachingExecBase implements AsyncExecChainHandler {
private final HttpAsyncCache responseCache;
private final DefaultAsyncCacheRevalidator cacheRevalidator;
private final ConditionalRequestBuilder<HttpRequest> conditionalRequestBuilder;
public AsyncCachingExec(final HttpAsyncCache cache, final CacheConfig config) {
AsyncCachingExec(final HttpAsyncCache cache, final DefaultAsyncCacheRevalidator cacheRevalidator, final CacheConfig config) {
super(config);
this.responseCache = Args.notNull(cache, "Response cache");
this.cacheRevalidator = cacheRevalidator;
this.conditionalRequestBuilder = new ConditionalRequestBuilder<>(RequestCopier.INSTANCE);
}
public AsyncCachingExec(
final ResourceFactory resourceFactory,
final HttpAsyncCacheStorage storage,
final CacheConfig config) {
this(new BasicHttpAsyncCache(resourceFactory, storage), config);
}
AsyncCachingExec(
final HttpAsyncCache responseCache,
final CacheValidityPolicy validityPolicy,
@ -109,16 +107,37 @@ public class AsyncCachingExec extends CachingExecBase implements AsyncExecChainH
final CachedHttpResponseGenerator responseGenerator,
final CacheableRequestPolicy cacheableRequestPolicy,
final CachedResponseSuitabilityChecker suitabilityChecker,
final ConditionalRequestBuilder<HttpRequest> conditionalRequestBuilder,
final ResponseProtocolCompliance responseCompliance,
final RequestProtocolCompliance requestCompliance,
final DefaultAsyncCacheRevalidator cacheRevalidator,
final ConditionalRequestBuilder<HttpRequest> conditionalRequestBuilder,
final CacheConfig config) {
super(validityPolicy, responseCachingPolicy, responseGenerator, cacheableRequestPolicy,
suitabilityChecker, responseCompliance, requestCompliance, config);
this.responseCache = responseCache;
this.cacheRevalidator = cacheRevalidator;
this.conditionalRequestBuilder = conditionalRequestBuilder;
}
public AsyncCachingExec(
final HttpAsyncCache cache,
final ScheduledExecutorService executorService,
final SchedulingStrategy schedulingStrategy,
final CacheConfig config) {
this(cache,
executorService != null ? new DefaultAsyncCacheRevalidator(executorService, schedulingStrategy) : null,
config);
}
public AsyncCachingExec(
final ResourceFactory resourceFactory,
final HttpAsyncCacheStorage storage,
final ScheduledExecutorService executorService,
final SchedulingStrategy schedulingStrategy,
final CacheConfig config) {
this(new BasicHttpAsyncCache(resourceFactory, storage), executorService, schedulingStrategy, config);
}
private void triggerResponse(
final SimpleHttpResponse cacheResponse,
final AsyncExecChain.Scope scope,
@ -609,7 +628,38 @@ public class AsyncCachingExec extends CachingExecBase implements AsyncExecChainH
triggerResponse(cacheResponse, scope, asyncExecCallback);
} else if (!(entry.getStatus() == HttpStatus.SC_NOT_MODIFIED && !suitabilityChecker.isConditional(request))) {
log.debug("Revalidating cache entry");
revalidateCacheEntry(target, request, entityProducer, scope, chain, asyncExecCallback, entry);
if (cacheRevalidator != null
&& !staleResponseNotAllowed(request, entry, now)
&& validityPolicy.mayReturnStaleWhileRevalidating(entry, now)) {
log.debug("Serving stale with asynchronous revalidation");
try {
final SimpleHttpResponse cacheResponse = generateCachedResponse(request, context, entry, now);
final String exchangeId = ExecSupport.getNextExchangeId();
final AsyncExecChain.Scope fork = new AsyncExecChain.Scope(
exchangeId,
scope.route,
scope.originalRequest,
new ComplexFuture<>(null),
HttpClientContext.create(),
scope.execRuntime.fork());
cacheRevalidator.revalidateCacheEntry(
responseCache.generateKey(target, request, entry),
asyncExecCallback,
new DefaultAsyncCacheRevalidator.RevalidationCall() {
@Override
public void execute(final AsyncExecCallback asyncExecCallback) {
revalidateCacheEntry(target, request, entityProducer, fork, chain, asyncExecCallback, entry);
}
});
triggerResponse(cacheResponse, scope, asyncExecCallback);
} catch (final ResourceIOException ex) {
asyncExecCallback.failed(ex);
}
} else {
revalidateCacheEntry(target, request, entityProducer, scope, chain, asyncExecCallback, entry);
}
} else {
log.debug("Cache entry not usable; calling backend");
callBackend(target, request, entityProducer, scope, chain, asyncExecCallback);

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@ -84,6 +84,15 @@ class BasicHttpAsyncCache implements HttpAsyncCache {
this( resourceFactory, storage, CacheKeyGenerator.INSTANCE);
}
@Override
public String generateKey(final HttpHost host, final HttpRequest request, final HttpCacheEntry cacheEntry) {
if (cacheEntry == null) {
return cacheKeyGenerator.generateKey(host, request);
} else {
return cacheKeyGenerator.generateKey(host, request, cacheEntry);
}
}
@Override
public Cancellable flushCacheEntriesFor(
final HttpHost host, final HttpRequest request, final FutureCallback<Boolean> callback) {

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@ -88,6 +88,15 @@ class BasicHttpCache implements HttpCache {
this(CacheConfig.DEFAULT);
}
@Override
public String generateKey(final HttpHost host, final HttpRequest request, final HttpCacheEntry cacheEntry) {
if (cacheEntry == null) {
return cacheKeyGenerator.generateKey(host, request);
} else {
return cacheKeyGenerator.generateKey(host, request, cacheEntry);
}
}
@Override
public void flushCacheEntriesFor(final HttpHost host, final HttpRequest request) {
if (log.isDebugEnabled()) {

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@ -90,15 +90,10 @@ import org.apache.hc.core5.util.Args;
* <p><b>Background validation</b>. The cache module supports the
* {@code stale-while-revalidate} directive of
* <a href="http://tools.ietf.org/html/rfc5861">RFC5861</a>, which allows
* certain cache entry revalidations to happen in the background. You may
* want to tweak the settings for the {@link
* CacheConfig#getAsynchronousWorkersCore() minimum} and {@link
* CacheConfig#getAsynchronousWorkersMax() maximum} number of background
* worker threads, as well as the {@link
* CacheConfig#getAsynchronousWorkerIdleLifetimeSecs() maximum time they
* can be idle before being reclaimed}. You can also control the {@link
* CacheConfig#getRevalidationQueueSize() size of the queue} used for
* revalidations when there aren't enough workers to keep up with demand.</p>
* certain cache entry revalidations to happen in the background. Asynchronous
* validation is enabled by default but it could be disabled by setting the number
* of re-validation workers to {@code 0} with {@link CacheConfig#getAsynchronousWorkers()}
* parameter</p>
*/
public class CacheConfig implements Cloneable {
@ -142,21 +137,7 @@ public class CacheConfig implements Cloneable {
/** Default number of worker threads to allow for background revalidations
* resulting from the stale-while-revalidate directive.
*/
public static final int DEFAULT_ASYNCHRONOUS_WORKERS_MAX = 1;
/** Default minimum number of worker threads to allow for background
* revalidations resulting from the stale-while-revalidate directive.
*/
public static final int DEFAULT_ASYNCHRONOUS_WORKERS_CORE = 1;
/** Default maximum idle lifetime for a background revalidation thread
* before it gets reclaimed.
*/
public static final int DEFAULT_ASYNCHRONOUS_WORKER_IDLE_LIFETIME_SECS = 60;
/** Default maximum queue length for background revalidation requests.
*/
public static final int DEFAULT_REVALIDATION_QUEUE_SIZE = 100;
public static final int DEFAULT_ASYNCHRONOUS_WORKERS = 1;
public static final CacheConfig DEFAULT = new Builder().build();
@ -170,10 +151,7 @@ public class CacheConfig implements Cloneable {
private final long heuristicDefaultLifetime;
private final boolean sharedCache;
private final boolean freshnessCheckEnabled;
private final int asynchronousWorkersMax;
private final int asynchronousWorkersCore;
private final int asynchronousWorkerIdleLifetimeSecs;
private final int revalidationQueueSize;
private final int asynchronousWorkers;
private final boolean neverCacheHTTP10ResponsesWithQuery;
CacheConfig(
@ -187,10 +165,7 @@ public class CacheConfig implements Cloneable {
final long heuristicDefaultLifetime,
final boolean sharedCache,
final boolean freshnessCheckEnabled,
final int asynchronousWorkersMax,
final int asynchronousWorkersCore,
final int asynchronousWorkerIdleLifetimeSecs,
final int revalidationQueueSize,
final int asynchronousWorkers,
final boolean neverCacheHTTP10ResponsesWithQuery) {
super();
this.maxObjectSize = maxObjectSize;
@ -203,10 +178,7 @@ public class CacheConfig implements Cloneable {
this.heuristicDefaultLifetime = heuristicDefaultLifetime;
this.sharedCache = sharedCache;
this.freshnessCheckEnabled = freshnessCheckEnabled;
this.asynchronousWorkersMax = asynchronousWorkersMax;
this.asynchronousWorkersCore = asynchronousWorkersCore;
this.asynchronousWorkerIdleLifetimeSecs = asynchronousWorkerIdleLifetimeSecs;
this.revalidationQueueSize = revalidationQueueSize;
this.asynchronousWorkers = asynchronousWorkers;
this.neverCacheHTTP10ResponsesWithQuery = neverCacheHTTP10ResponsesWithQuery;
}
@ -306,33 +278,8 @@ public class CacheConfig implements Cloneable {
* revalidations due to the {@code stale-while-revalidate} directive. A
* value of 0 means background revalidations are disabled.
*/
public int getAsynchronousWorkersMax() {
return asynchronousWorkersMax;
}
/**
* Returns the minimum number of threads to keep alive for background
* revalidations due to the {@code stale-while-revalidate} directive.
*/
public int getAsynchronousWorkersCore() {
return asynchronousWorkersCore;
}
/**
* Returns the current maximum idle lifetime in seconds for a
* background revalidation worker thread. If a worker thread is idle
* for this long, and there are more than the core number of worker
* threads alive, the worker will be reclaimed.
*/
public int getAsynchronousWorkerIdleLifetimeSecs() {
return asynchronousWorkerIdleLifetimeSecs;
}
/**
* Returns the current maximum queue size for background revalidations.
*/
public int getRevalidationQueueSize() {
return revalidationQueueSize;
public int getAsynchronousWorkers() {
return asynchronousWorkers;
}
@Override
@ -354,10 +301,7 @@ public class CacheConfig implements Cloneable {
.setHeuristicCoefficient(config.getHeuristicCoefficient())
.setHeuristicDefaultLifetime(config.getHeuristicDefaultLifetime())
.setSharedCache(config.isSharedCache())
.setAsynchronousWorkersMax(config.getAsynchronousWorkersMax())
.setAsynchronousWorkersCore(config.getAsynchronousWorkersCore())
.setAsynchronousWorkerIdleLifetimeSecs(config.getAsynchronousWorkerIdleLifetimeSecs())
.setRevalidationQueueSize(config.getRevalidationQueueSize())
.setAsynchronousWorkers(config.getAsynchronousWorkers())
.setNeverCacheHTTP10ResponsesWithQueryString(config.isNeverCacheHTTP10ResponsesWithQuery());
}
@ -374,10 +318,7 @@ public class CacheConfig implements Cloneable {
private long heuristicDefaultLifetime;
private boolean sharedCache;
private boolean freshnessCheckEnabled;
private int asynchronousWorkersMax;
private int asynchronousWorkersCore;
private int asynchronousWorkerIdleLifetimeSecs;
private int revalidationQueueSize;
private int asynchronousWorkers;
private boolean neverCacheHTTP10ResponsesWithQuery;
Builder() {
@ -391,10 +332,7 @@ public class CacheConfig implements Cloneable {
this.heuristicDefaultLifetime = DEFAULT_HEURISTIC_LIFETIME;
this.sharedCache = true;
this.freshnessCheckEnabled = true;
this.asynchronousWorkersMax = DEFAULT_ASYNCHRONOUS_WORKERS_MAX;
this.asynchronousWorkersCore = DEFAULT_ASYNCHRONOUS_WORKERS_CORE;
this.asynchronousWorkerIdleLifetimeSecs = DEFAULT_ASYNCHRONOUS_WORKER_IDLE_LIFETIME_SECS;
this.revalidationQueueSize = DEFAULT_REVALIDATION_QUEUE_SIZE;
this.asynchronousWorkers = DEFAULT_ASYNCHRONOUS_WORKERS;
}
/**
@ -495,42 +433,11 @@ public class CacheConfig implements Cloneable {
/**
* Sets the maximum number of threads to allow for background
* revalidations due to the {@code stale-while-revalidate} directive.
* @param asynchronousWorkersMax number of threads; a value of 0 disables background
* @param asynchronousWorkers number of threads; a value of 0 disables background
* revalidations.
*/
public Builder setAsynchronousWorkersMax(final int asynchronousWorkersMax) {
this.asynchronousWorkersMax = asynchronousWorkersMax;
return this;
}
/**
* Sets the minimum number of threads to keep alive for background
* revalidations due to the {@code stale-while-revalidate} directive.
* @param asynchronousWorkersCore should be greater than zero and less than or equal
* to {@code getAsynchronousWorkersMax()}
*/
public Builder setAsynchronousWorkersCore(final int asynchronousWorkersCore) {
this.asynchronousWorkersCore = asynchronousWorkersCore;
return this;
}
/**
* Sets the current maximum idle lifetime in seconds for a
* background revalidation worker thread. If a worker thread is idle
* for this long, and there are more than the core number of worker
* threads alive, the worker will be reclaimed.
* @param asynchronousWorkerIdleLifetimeSecs idle lifetime in seconds
*/
public Builder setAsynchronousWorkerIdleLifetimeSecs(final int asynchronousWorkerIdleLifetimeSecs) {
this.asynchronousWorkerIdleLifetimeSecs = asynchronousWorkerIdleLifetimeSecs;
return this;
}
/**
* Sets the current maximum queue size for background revalidations.
*/
public Builder setRevalidationQueueSize(final int revalidationQueueSize) {
this.revalidationQueueSize = revalidationQueueSize;
public Builder setAsynchronousWorkers(final int asynchronousWorkers) {
this.asynchronousWorkers = asynchronousWorkers;
return this;
}
@ -547,6 +454,11 @@ public class CacheConfig implements Cloneable {
return this;
}
public Builder setFreshnessCheckEnabled(final boolean freshnessCheckEnabled) {
this.freshnessCheckEnabled = freshnessCheckEnabled;
return this;
}
public CacheConfig build() {
return new CacheConfig(
maxObjectSize,
@ -559,10 +471,7 @@ public class CacheConfig implements Cloneable {
heuristicDefaultLifetime,
sharedCache,
freshnessCheckEnabled,
asynchronousWorkersMax,
asynchronousWorkersCore,
asynchronousWorkerIdleLifetimeSecs,
revalidationQueueSize,
asynchronousWorkers,
neverCacheHTTP10ResponsesWithQuery);
}
@ -581,10 +490,7 @@ public class CacheConfig implements Cloneable {
.append(", heuristicDefaultLifetime=").append(this.heuristicDefaultLifetime)
.append(", sharedCache=").append(this.sharedCache)
.append(", freshnessCheckEnabled=").append(this.freshnessCheckEnabled)
.append(", asynchronousWorkersMax=").append(this.asynchronousWorkersMax)
.append(", asynchronousWorkersCore=").append(this.asynchronousWorkersCore)
.append(", asynchronousWorkerIdleLifetimeSecs=").append(this.asynchronousWorkerIdleLifetimeSecs)
.append(", revalidationQueueSize=").append(this.revalidationQueueSize)
.append(", asynchronousWorkers=").append(this.asynchronousWorkers)
.append(", neverCacheHTTP10ResponsesWithQuery=").append(this.neverCacheHTTP10ResponsesWithQuery)
.append("]");
return builder.toString();

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@ -33,6 +33,7 @@ import java.util.Iterator;
import java.util.Set;
import java.util.concurrent.Future;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.ScheduledThreadPoolExecutor;
@ -62,7 +63,7 @@ class CacheRevalidatorBase implements Closeable {
}
public static ScheduledExecutor wrap(final ScheduledThreadPoolExecutor threadPoolExecutor) {
public static ScheduledExecutor wrap(final ScheduledExecutorService executorService) {
return new ScheduledExecutor() {
@ -70,18 +71,18 @@ class CacheRevalidatorBase implements Closeable {
public ScheduledFuture<?> schedule(final Runnable command, final TimeValue timeValue) throws RejectedExecutionException {
Args.notNull(command, "Runnable");
Args.notNull(timeValue, "Time value");
return threadPoolExecutor.schedule(command, timeValue.getDuration(), timeValue.getTimeUnit());
return executorService.schedule(command, timeValue.getDuration(), timeValue.getTimeUnit());
}
@Override
public void shutdown() {
threadPoolExecutor.shutdown();
executorService.shutdown();
}
@Override
public void awaitTermination(final Timeout timeout) throws InterruptedException {
Args.notNull(timeout, "Timeout");
threadPoolExecutor.awaitTermination(timeout.getDuration(), timeout.getTimeUnit());
executorService.awaitTermination(timeout.getDuration(), timeout.getTimeUnit());
}
};

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@ -31,6 +31,7 @@ import java.io.InputStream;
import java.util.Date;
import java.util.Iterator;
import java.util.Map;
import java.util.concurrent.ScheduledExecutorService;
import org.apache.hc.client5.http.HttpRoute;
import org.apache.hc.client5.http.async.methods.SimpleBody;
@ -43,8 +44,10 @@ import org.apache.hc.client5.http.cache.ResourceFactory;
import org.apache.hc.client5.http.cache.ResourceIOException;
import org.apache.hc.client5.http.classic.ExecChain;
import org.apache.hc.client5.http.classic.ExecChainHandler;
import org.apache.hc.client5.http.impl.ExecSupport;
import org.apache.hc.client5.http.impl.classic.ClassicRequestCopier;
import org.apache.hc.client5.http.protocol.HttpClientContext;
import org.apache.hc.client5.http.schedule.SchedulingStrategy;
import org.apache.hc.client5.http.utils.DateUtils;
import org.apache.hc.core5.annotation.Contract;
import org.apache.hc.core5.annotation.ThreadingBehavior;
@ -101,27 +104,18 @@ import org.apache.logging.log4j.Logger;
public class CachingExec extends CachingExecBase implements ExecChainHandler {
private final HttpCache responseCache;
private final DefaultCacheRevalidator cacheRevalidator;
private final ConditionalRequestBuilder<ClassicHttpRequest> conditionalRequestBuilder;
private final Logger log = LogManager.getLogger(getClass());
public CachingExec(final HttpCache cache, final CacheConfig config) {
CachingExec(final HttpCache cache, final DefaultCacheRevalidator cacheRevalidator, final CacheConfig config) {
super(config);
this.responseCache = Args.notNull(cache, "Response cache");
this.cacheRevalidator = cacheRevalidator;
this.conditionalRequestBuilder = new ConditionalRequestBuilder<>(ClassicRequestCopier.INSTANCE);
}
public CachingExec(
final ResourceFactory resourceFactory,
final HttpCacheStorage storage,
final CacheConfig config) {
this(new BasicHttpCache(resourceFactory, storage), config);
}
public CachingExec() {
this(new BasicHttpCache(), CacheConfig.DEFAULT);
}
CachingExec(
final HttpCache responseCache,
final CacheValidityPolicy validityPolicy,
@ -129,16 +123,37 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
final CachedHttpResponseGenerator responseGenerator,
final CacheableRequestPolicy cacheableRequestPolicy,
final CachedResponseSuitabilityChecker suitabilityChecker,
final ConditionalRequestBuilder<ClassicHttpRequest> conditionalRequestBuilder,
final ResponseProtocolCompliance responseCompliance,
final RequestProtocolCompliance requestCompliance,
final DefaultCacheRevalidator cacheRevalidator,
final ConditionalRequestBuilder<ClassicHttpRequest> conditionalRequestBuilder,
final CacheConfig config) {
super(validityPolicy, responseCachingPolicy, responseGenerator, cacheableRequestPolicy,
suitabilityChecker, responseCompliance, requestCompliance, config);
this.responseCache = responseCache;
this.cacheRevalidator = cacheRevalidator;
this.conditionalRequestBuilder = conditionalRequestBuilder;
}
public CachingExec(
final HttpCache cache,
final ScheduledExecutorService executorService,
final SchedulingStrategy schedulingStrategy,
final CacheConfig config) {
this(cache,
executorService != null ? new DefaultCacheRevalidator(executorService, schedulingStrategy) : null,
config);
}
public CachingExec(
final ResourceFactory resourceFactory,
final HttpCacheStorage storage,
final ScheduledExecutorService executorService,
final SchedulingStrategy schedulingStrategy,
final CacheConfig config) {
this(new BasicHttpCache(resourceFactory, storage), executorService, schedulingStrategy, config);
}
@Override
public ClassicHttpResponse execute(
final ClassicHttpRequest request,
@ -167,7 +182,7 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
final SimpleHttpResponse fatalErrorResponse = getFatallyNoncompliantResponse(request, context);
if (fatalErrorResponse != null) {
return convert(fatalErrorResponse);
return convert(fatalErrorResponse, scope);
}
requestCompliance.makeRequestCompliant(request);
@ -188,7 +203,7 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
}
}
private static ClassicHttpResponse convert(final SimpleHttpResponse cacheResponse) {
private static ClassicHttpResponse convert(final SimpleHttpResponse cacheResponse, final ExecChain.Scope scope) {
if (cacheResponse == null) {
return null;
}
@ -205,6 +220,7 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
response.setEntity(new ByteArrayEntity(body.getBodyBytes(), body.getContentType()));
}
}
scope.clientContext.setAttribute(HttpCoreContext.HTTP_RESPONSE, response);
return response;
}
@ -240,15 +256,11 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
if (suitabilityChecker.canCachedResponseBeUsed(target, request, entry, now)) {
log.debug("Cache hit");
try {
final ClassicHttpResponse response = convert(generateCachedResponse(request, context, entry, now));
context.setAttribute(HttpCoreContext.HTTP_RESPONSE, response);
return response;
return convert(generateCachedResponse(request, context, entry, now), scope);
} catch (final ResourceIOException ex) {
recordCacheFailure(target, request);
if (!mayCallBackend(request)) {
final ClassicHttpResponse response = convert(generateGatewayTimeout(context));
context.setAttribute(HttpCoreContext.HTTP_RESPONSE, response);
return response;
return convert(generateGatewayTimeout(context), scope);
} else {
setResponseStatus(scope.clientContext, CacheResponseStatus.FAILURE);
return chain.proceed(request, scope);
@ -256,15 +268,38 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
}
} else if (!mayCallBackend(request)) {
log.debug("Cache entry not suitable but only-if-cached requested");
final ClassicHttpResponse response = convert(generateGatewayTimeout(context));
context.setAttribute(HttpCoreContext.HTTP_RESPONSE, response);
return response;
return convert(generateGatewayTimeout(context), scope);
} else if (!(entry.getStatus() == HttpStatus.SC_NOT_MODIFIED && !suitabilityChecker.isConditional(request))) {
log.debug("Revalidating cache entry");
try {
return revalidateCacheEntry(target, request, scope, chain, entry);
if (cacheRevalidator != null
&& !staleResponseNotAllowed(request, entry, now)
&& validityPolicy.mayReturnStaleWhileRevalidating(entry, now)) {
log.debug("Serving stale with asynchronous revalidation");
final String exchangeId = ExecSupport.getNextExchangeId();
final ExecChain.Scope fork = new ExecChain.Scope(
exchangeId,
scope.route,
scope.originalRequest,
scope.execRuntime.fork(null),
HttpClientContext.create());
final SimpleHttpResponse response = generateCachedResponse(request, context, entry, now);
cacheRevalidator.revalidateCacheEntry(
responseCache.generateKey(target, request, entry),
new DefaultCacheRevalidator.RevalidationCall() {
@Override
public ClassicHttpResponse execute() throws HttpException, IOException {
return revalidateCacheEntry(target, request, fork, chain, entry);
}
});
return convert(response, scope);
} else {
return revalidateCacheEntry(target, request, scope, chain, entry);
}
} catch (final IOException ioex) {
return convert(handleRevalidationFailure(request, context, entry, now));
return convert(handleRevalidationFailure(request, context, entry, now), scope);
}
} else {
log.debug("Cache entry not usable; calling backend");
@ -307,9 +342,9 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
target, request, cacheEntry, backendResponse, requestDate, responseDate);
if (suitabilityChecker.isConditional(request)
&& suitabilityChecker.allConditionalsMatch(request, updatedEntry, new Date())) {
return convert(responseGenerator.generateNotModifiedResponse(updatedEntry));
return convert(responseGenerator.generateNotModifiedResponse(updatedEntry), scope);
}
return convert(responseGenerator.generateResponse(request, updatedEntry));
return convert(responseGenerator.generateResponse(request, updatedEntry), scope);
}
if (staleIfErrorAppliesTo(statusCode)
@ -318,7 +353,7 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
try {
final SimpleHttpResponse cachedResponse = responseGenerator.generateResponse(request, cacheEntry);
cachedResponse.addHeader(HeaderConstants.WARNING, "110 localhost \"Response is stale\"");
return convert(cachedResponse);
return convert(cachedResponse, scope);
} finally {
backendResponse.close();
}
@ -344,7 +379,7 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
final boolean cacheable = responseCachingPolicy.isResponseCacheable(request, backendResponse);
if (cacheable) {
storeRequestIfModifiedSinceFor304Response(request, backendResponse);
return cacheAndReturnResponse(target, request, backendResponse, requestDate, responseDate);
return cacheAndReturnResponse(target, request, backendResponse, scope, requestDate, responseDate);
} else {
log.debug("Backend response is not cacheable");
responseCache.flushCacheEntriesFor(target, request);
@ -356,6 +391,7 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
final HttpHost target,
final HttpRequest request,
final ClassicHttpResponse backendResponse,
final ExecChain.Scope scope,
final Date requestSent,
final Date responseReceived) throws IOException {
log.debug("Caching backend response");
@ -395,7 +431,7 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
cacheEntry = responseCache.createCacheEntry(target, request, backendResponse, buf, requestSent, responseReceived);
log.debug("Backend response successfully cached (freshness check skipped)");
}
return convert(responseGenerator.generateResponse(request, cacheEntry));
return convert(responseGenerator.generateResponse(request, cacheEntry), scope);
}
private ClassicHttpResponse handleCacheMiss(
@ -423,8 +459,7 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
final ExecChain.Scope scope,
final ExecChain chain,
final Map<String, Variant> variants) throws IOException, HttpException {
final ClassicHttpRequest conditionalRequest = conditionalRequestBuilder.buildConditionalRequestFromVariants(
request, variants);
final ClassicHttpRequest conditionalRequest = conditionalRequestBuilder.buildConditionalRequestFromVariants(request, variants);
final Date requestDate = getCurrentDate();
final ClassicHttpResponse backendResponse = chain.proceed(conditionalRequest, scope);
@ -468,11 +503,11 @@ public class CachingExec extends CachingExecBase implements ExecChainHandler {
target, conditionalRequest, backendResponse, matchingVariant, requestDate, responseDate);
backendResponse.close();
if (shouldSendNotModifiedResponse(request, responseEntry)) {
return convert(responseGenerator.generateNotModifiedResponse(responseEntry));
return convert(responseGenerator.generateNotModifiedResponse(responseEntry), scope);
}
final SimpleHttpResponse resp = responseGenerator.generateResponse(request, responseEntry);
final SimpleHttpResponse response = responseGenerator.generateResponse(request, responseEntry);
responseCache.reuseVariantEntryFor(target, request, matchingVariant);
return convert(resp);
return convert(response, scope);
} catch (final IOException | RuntimeException ex) {
backendResponse.close();
throw ex;

View File

@ -29,6 +29,8 @@ package org.apache.hc.client5.http.impl.cache;
import java.io.Closeable;
import java.io.File;
import java.io.IOException;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import org.apache.hc.client5.http.async.AsyncExecChainHandler;
import org.apache.hc.client5.http.cache.HttpAsyncCacheInvalidator;
@ -38,6 +40,8 @@ import org.apache.hc.client5.http.cache.HttpCacheStorage;
import org.apache.hc.client5.http.cache.ResourceFactory;
import org.apache.hc.client5.http.impl.ChainElements;
import org.apache.hc.client5.http.impl.async.Http2AsyncClientBuilder;
import org.apache.hc.client5.http.impl.schedule.ImmediateSchedulingStrategy;
import org.apache.hc.client5.http.schedule.SchedulingStrategy;
import org.apache.hc.core5.http.config.NamedElementChain;
/**
@ -51,6 +55,7 @@ public class CachingHttp2AsyncClientBuilder extends Http2AsyncClientBuilder {
private ResourceFactory resourceFactory;
private HttpAsyncCacheStorage storage;
private File cacheDir;
private SchedulingStrategy schedulingStrategy;
private CacheConfig cacheConfig;
private HttpAsyncCacheInvalidator httpCacheInvalidator;
private boolean deleteCache;
@ -84,6 +89,11 @@ public class CachingHttp2AsyncClientBuilder extends Http2AsyncClientBuilder {
return this;
}
public final CachingHttp2AsyncClientBuilder setSchedulingStrategy(final SchedulingStrategy schedulingStrategy) {
this.schedulingStrategy = schedulingStrategy;
return this;
}
public final CachingHttp2AsyncClientBuilder setCacheConfig(final CacheConfig cacheConfig) {
this.cacheConfig = cacheConfig;
return this;
@ -138,7 +148,26 @@ public class CachingHttp2AsyncClientBuilder extends Http2AsyncClientBuilder {
CacheKeyGenerator.INSTANCE,
this.httpCacheInvalidator != null ? this.httpCacheInvalidator : new DefaultAsyncCacheInvalidator());
final AsyncCachingExec cachingExec = new AsyncCachingExec(httpCache, config);
DefaultAsyncCacheRevalidator cacheRevalidator = null;
if (config.getAsynchronousWorkers() > 0) {
final ScheduledExecutorService executorService = new ScheduledThreadPoolExecutor(config.getAsynchronousWorkers());
addCloseable(new Closeable() {
@Override
public void close() throws IOException {
executorService.shutdownNow();
}
});
cacheRevalidator = new DefaultAsyncCacheRevalidator(
executorService,
this.schedulingStrategy != null ? this.schedulingStrategy : ImmediateSchedulingStrategy.INSTANCE);
}
final AsyncCachingExec cachingExec = new AsyncCachingExec(
httpCache,
cacheRevalidator,
config);
execChainDefinition.addBefore(ChainElements.PROTOCOL.name(), cachingExec, ChainElements.CACHING.name());
}

View File

@ -29,6 +29,8 @@ package org.apache.hc.client5.http.impl.cache;
import java.io.Closeable;
import java.io.File;
import java.io.IOException;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import org.apache.hc.client5.http.async.AsyncExecChainHandler;
import org.apache.hc.client5.http.cache.HttpAsyncCacheInvalidator;
@ -38,6 +40,8 @@ import org.apache.hc.client5.http.cache.HttpCacheStorage;
import org.apache.hc.client5.http.cache.ResourceFactory;
import org.apache.hc.client5.http.impl.ChainElements;
import org.apache.hc.client5.http.impl.async.HttpAsyncClientBuilder;
import org.apache.hc.client5.http.impl.schedule.ImmediateSchedulingStrategy;
import org.apache.hc.client5.http.schedule.SchedulingStrategy;
import org.apache.hc.core5.http.config.NamedElementChain;
/**
@ -51,6 +55,7 @@ public class CachingHttpAsyncClientBuilder extends HttpAsyncClientBuilder {
private ResourceFactory resourceFactory;
private HttpAsyncCacheStorage storage;
private File cacheDir;
private SchedulingStrategy schedulingStrategy;
private CacheConfig cacheConfig;
private HttpAsyncCacheInvalidator httpCacheInvalidator;
private boolean deleteCache;
@ -84,6 +89,11 @@ public class CachingHttpAsyncClientBuilder extends HttpAsyncClientBuilder {
return this;
}
public final CachingHttpAsyncClientBuilder setSchedulingStrategy(final SchedulingStrategy schedulingStrategy) {
this.schedulingStrategy = schedulingStrategy;
return this;
}
public final CachingHttpAsyncClientBuilder setCacheConfig(final CacheConfig cacheConfig) {
this.cacheConfig = cacheConfig;
return this;
@ -138,7 +148,26 @@ public class CachingHttpAsyncClientBuilder extends HttpAsyncClientBuilder {
CacheKeyGenerator.INSTANCE,
this.httpCacheInvalidator != null ? this.httpCacheInvalidator : new DefaultAsyncCacheInvalidator());
final AsyncCachingExec cachingExec = new AsyncCachingExec(httpCache, config);
DefaultAsyncCacheRevalidator cacheRevalidator = null;
if (config.getAsynchronousWorkers() > 0) {
final ScheduledExecutorService executorService = new ScheduledThreadPoolExecutor(config.getAsynchronousWorkers());
addCloseable(new Closeable() {
@Override
public void close() throws IOException {
executorService.shutdownNow();
}
});
cacheRevalidator = new DefaultAsyncCacheRevalidator(
executorService,
this.schedulingStrategy != null ? this.schedulingStrategy : ImmediateSchedulingStrategy.INSTANCE);
}
final AsyncCachingExec cachingExec = new AsyncCachingExec(
httpCache,
cacheRevalidator,
config);
execChainDefinition.addBefore(ChainElements.PROTOCOL.name(), cachingExec, ChainElements.CACHING.name());
}

View File

@ -29,6 +29,8 @@ package org.apache.hc.client5.http.impl.cache;
import java.io.Closeable;
import java.io.File;
import java.io.IOException;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import org.apache.hc.client5.http.cache.HttpCacheInvalidator;
import org.apache.hc.client5.http.cache.HttpCacheStorage;
@ -36,6 +38,8 @@ import org.apache.hc.client5.http.cache.ResourceFactory;
import org.apache.hc.client5.http.classic.ExecChainHandler;
import org.apache.hc.client5.http.impl.ChainElements;
import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
import org.apache.hc.client5.http.impl.schedule.ImmediateSchedulingStrategy;
import org.apache.hc.client5.http.schedule.SchedulingStrategy;
import org.apache.hc.core5.http.config.NamedElementChain;
/**
@ -49,6 +53,7 @@ public class CachingHttpClientBuilder extends HttpClientBuilder {
private ResourceFactory resourceFactory;
private HttpCacheStorage storage;
private File cacheDir;
private SchedulingStrategy schedulingStrategy;
private CacheConfig cacheConfig;
private HttpCacheInvalidator httpCacheInvalidator;
private boolean deleteCache;
@ -68,31 +73,32 @@ public class CachingHttpClientBuilder extends HttpClientBuilder {
return this;
}
public final CachingHttpClientBuilder setHttpCacheStorage(
final HttpCacheStorage storage) {
public final CachingHttpClientBuilder setHttpCacheStorage(final HttpCacheStorage storage) {
this.storage = storage;
return this;
}
public final CachingHttpClientBuilder setCacheDir(
final File cacheDir) {
public final CachingHttpClientBuilder setCacheDir(final File cacheDir) {
this.cacheDir = cacheDir;
return this;
}
public final CachingHttpClientBuilder setCacheConfig(
final CacheConfig cacheConfig) {
public final CachingHttpClientBuilder setSchedulingStrategy(final SchedulingStrategy schedulingStrategy) {
this.schedulingStrategy = schedulingStrategy;
return this;
}
public final CachingHttpClientBuilder setCacheConfig(final CacheConfig cacheConfig) {
this.cacheConfig = cacheConfig;
return this;
}
public final CachingHttpClientBuilder setHttpCacheInvalidator(
final HttpCacheInvalidator cacheInvalidator) {
public final CachingHttpClientBuilder setHttpCacheInvalidator(final HttpCacheInvalidator cacheInvalidator) {
this.httpCacheInvalidator = cacheInvalidator;
return this;
}
public CachingHttpClientBuilder setDeleteCache(final boolean deleteCache) {
public final CachingHttpClientBuilder setDeleteCache(final boolean deleteCache) {
this.deleteCache = deleteCache;
return this;
}
@ -136,7 +142,25 @@ public class CachingHttpClientBuilder extends HttpClientBuilder {
CacheKeyGenerator.INSTANCE,
this.httpCacheInvalidator != null ? this.httpCacheInvalidator : new DefaultCacheInvalidator());
final CachingExec cachingExec = new CachingExec(httpCache, config);
DefaultCacheRevalidator cacheRevalidator = null;
if (config.getAsynchronousWorkers() > 0) {
final ScheduledExecutorService executorService = new ScheduledThreadPoolExecutor(config.getAsynchronousWorkers());
addCloseable(new Closeable() {
@Override
public void close() throws IOException {
executorService.shutdownNow();
}
});
cacheRevalidator = new DefaultCacheRevalidator(
executorService,
this.schedulingStrategy != null ? this.schedulingStrategy : ImmediateSchedulingStrategy.INSTANCE);
}
final CachingExec cachingExec = new CachingExec(
httpCache,
cacheRevalidator,
config);
execChainDefinition.addBefore(ChainElements.PROTOCOL.name(), cachingExec, ChainElements.CACHING.name());
}

View File

@ -26,20 +26,20 @@
*/
package org.apache.hc.client5.http.impl.cache;
import java.util.concurrent.ExecutionException;
import java.io.IOException;
import java.util.concurrent.Future;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.atomic.AtomicReference;
import org.apache.hc.client5.http.async.AsyncExecCallback;
import org.apache.hc.client5.http.async.AsyncExecChain;
import org.apache.hc.client5.http.cache.HttpCacheEntry;
import org.apache.hc.client5.http.impl.Operations;
import org.apache.hc.client5.http.schedule.SchedulingStrategy;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.HttpRequest;
import org.apache.hc.core5.http.nio.AsyncEntityProducer;
import org.apache.hc.core5.http.EntityDetails;
import org.apache.hc.core5.http.HttpException;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.HttpStatus;
import org.apache.hc.core5.http.nio.AsyncDataConsumer;
import org.apache.hc.core5.util.TimeValue;
import org.apache.hc.core5.util.Timeout;
@ -49,33 +49,10 @@ import org.apache.hc.core5.util.Timeout;
*/
class DefaultAsyncCacheRevalidator extends CacheRevalidatorBase {
private static final Future<Void> NOOP_FUTURE = new Future<Void>() {
interface RevalidationCall {
@Override
public Void get() throws InterruptedException, ExecutionException {
return null;
}
@Override
public Void get(final long timeout, final TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
return null;
}
@Override
public boolean cancel(final boolean mayInterruptIfRunning) {
return false;
}
@Override
public boolean isCancelled() {
return false;
}
@Override
public boolean isDone() {
return true;
}
};
void execute(AsyncExecCallback asyncExecCallback);;
}
static class InternalScheduledExecutor implements ScheduledExecutor {
@ -89,7 +66,7 @@ class DefaultAsyncCacheRevalidator extends CacheRevalidatorBase {
public Future<?> schedule(final Runnable command, final TimeValue timeValue) throws RejectedExecutionException {
if (timeValue.toMillis() <= 0) {
command.run();
return NOOP_FUTURE;
return new Operations.CompletedFuture<Void>(null);
} else {
return executor.schedule(command, timeValue);
}
@ -107,7 +84,6 @@ class DefaultAsyncCacheRevalidator extends CacheRevalidatorBase {
}
private final AsyncCachingExec cachingExec;
private final CacheKeyGenerator cacheKeyGenerator;
/**
@ -116,42 +92,72 @@ class DefaultAsyncCacheRevalidator extends CacheRevalidatorBase {
*/
public DefaultAsyncCacheRevalidator(
final ScheduledExecutor scheduledExecutor,
final SchedulingStrategy schedulingStrategy,
final AsyncCachingExec cachingExec) {
final SchedulingStrategy schedulingStrategy) {
super(new InternalScheduledExecutor(scheduledExecutor), schedulingStrategy);
this.cachingExec = cachingExec;
this.cacheKeyGenerator = CacheKeyGenerator.INSTANCE;
}
/**
* Create CacheValidator which will make ache revalidation requests
* using the supplied {@link SchedulingStrategy} and {@link ScheduledThreadPoolExecutor}.
* using the supplied {@link SchedulingStrategy} and {@link ScheduledExecutorService}.
*/
public DefaultAsyncCacheRevalidator(
final ScheduledThreadPoolExecutor scheduledThreadPoolExecutor,
final SchedulingStrategy schedulingStrategy,
final AsyncCachingExec cachingExec) {
this(wrap(scheduledThreadPoolExecutor), schedulingStrategy, cachingExec);
final ScheduledExecutorService executorService,
final SchedulingStrategy schedulingStrategy) {
this(wrap(executorService), schedulingStrategy);
}
/**
* Schedules an asynchronous re-validation
*/
public void revalidateCacheEntry(
final HttpHost target,
final HttpRequest request,
final AsyncEntityProducer entityProducer,
final AsyncExecChain.Scope scope,
final AsyncExecChain chain,
final String cacheKey ,
final AsyncExecCallback asyncExecCallback,
final HttpCacheEntry entry) {
final String cacheKey = cacheKeyGenerator.generateKey(target, request, entry);
final RevalidationCall call) {
scheduleRevalidation(cacheKey, new Runnable() {
@Override
public void run() {
cachingExec.revalidateCacheEntry(target, request, entityProducer, scope, chain, asyncExecCallback, entry);
call.execute(new AsyncExecCallback() {
private final AtomicReference<HttpResponse> responseRef = new AtomicReference<>(null);
@Override
public AsyncDataConsumer handleResponse(
final HttpResponse response, final EntityDetails entityDetails) throws HttpException, IOException {
responseRef.set(response);
return asyncExecCallback.handleResponse(response, entityDetails);
}
@Override
public void completed() {
final HttpResponse httpResponse = responseRef.getAndSet(null);
if (httpResponse != null && httpResponse.getCode() < HttpStatus.SC_SERVER_ERROR && !isStale(httpResponse)) {
jobSuccessful(cacheKey);
} else {
jobFailed(cacheKey);
}
asyncExecCallback.completed();
}
@Override
public void failed(final Exception cause) {
if (cause instanceof IOException) {
log.debug("Asynchronous revalidation failed due to I/O error", cause);
} else if (cause instanceof HttpException) {
log.error("HTTP protocol exception during asynchronous revalidation", cause);
} else {
log.error("Unexpected runtime exception thrown during asynchronous revalidation", cause);
}
try {
jobFailed(cacheKey);
} finally {
asyncExecCallback.failed(cause);
}
}
});
}
});

View File

@ -27,15 +27,11 @@
package org.apache.hc.client5.http.impl.cache;
import java.io.IOException;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ScheduledExecutorService;
import org.apache.hc.client5.http.cache.HttpCacheEntry;
import org.apache.hc.client5.http.classic.ExecChain;
import org.apache.hc.client5.http.schedule.SchedulingStrategy;
import org.apache.hc.core5.http.ClassicHttpRequest;
import org.apache.hc.core5.http.ClassicHttpResponse;
import org.apache.hc.core5.http.HttpException;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.HttpStatus;
/**
@ -44,8 +40,10 @@ import org.apache.hc.core5.http.HttpStatus;
*/
class DefaultCacheRevalidator extends CacheRevalidatorBase {
private final CachingExec cachingExec;
private final CacheKeyGenerator cacheKeyGenerator;
interface RevalidationCall {
ClassicHttpResponse execute() throws IOException, HttpException;
}
/**
* Create DefaultCacheRevalidator which will make ache revalidation requests
@ -53,56 +51,45 @@ class DefaultCacheRevalidator extends CacheRevalidatorBase {
*/
public DefaultCacheRevalidator(
final CacheRevalidatorBase.ScheduledExecutor scheduledExecutor,
final SchedulingStrategy schedulingStrategy,
final CachingExec cachingExec) {
final SchedulingStrategy schedulingStrategy) {
super(scheduledExecutor, schedulingStrategy);
this.cachingExec = cachingExec;
this.cacheKeyGenerator = CacheKeyGenerator.INSTANCE;
}
/**
* Create CacheValidator which will make ache revalidation requests
* using the supplied {@link SchedulingStrategy} and {@link ScheduledThreadPoolExecutor}.
* using the supplied {@link SchedulingStrategy} and {@link ScheduledExecutorService}.
*/
public DefaultCacheRevalidator(
final ScheduledThreadPoolExecutor scheduledThreadPoolExecutor,
final SchedulingStrategy schedulingStrategy,
final CachingExec cachingExec) {
this(wrap(scheduledThreadPoolExecutor), schedulingStrategy, cachingExec);
final ScheduledExecutorService scheduledThreadPoolExecutor,
final SchedulingStrategy schedulingStrategy) {
this(wrap(scheduledThreadPoolExecutor), schedulingStrategy);
}
/**
* Schedules an asynchronous re-validation
*/
public void revalidateCacheEntry(
final HttpHost target,
final ClassicHttpRequest request,
final ExecChain.Scope scope,
final ExecChain chain,
final HttpCacheEntry entry) {
final String cacheKey = cacheKeyGenerator.generateKey(target, request, entry);
final String cacheKey,
final RevalidationCall call) {
scheduleRevalidation(cacheKey, new Runnable() {
@Override
public void run() {
try {
try (ClassicHttpResponse httpResponse = cachingExec.revalidateCacheEntry(target, request, scope, chain, entry)) {
if (httpResponse.getCode() < HttpStatus.SC_SERVER_ERROR && !isStale(httpResponse)) {
jobSuccessful(cacheKey);
} else {
jobFailed(cacheKey);
}
try (ClassicHttpResponse httpResponse = call.execute()) {
if (httpResponse.getCode() < HttpStatus.SC_SERVER_ERROR && !isStale(httpResponse)) {
jobSuccessful(cacheKey);
} else {
jobFailed(cacheKey);
}
} catch (final IOException ioe) {
} catch (final IOException ex) {
jobFailed(cacheKey);
log.debug("Asynchronous revalidation failed due to I/O error", ioe);
} catch (final HttpException pe) {
log.debug("Asynchronous revalidation failed due to I/O error", ex);
} catch (final HttpException ex) {
jobFailed(cacheKey);
log.error("HTTP protocol exception during asynchronous revalidation", pe);
} catch (final RuntimeException re) {
log.error("HTTP protocol exception during asynchronous revalidation", ex);
} catch (final RuntimeException ex) {
jobFailed(cacheKey);
log.error("Unexpected runtime exception thrown during asynchronous revalidation" + re);
log.error("Unexpected runtime exception thrown during asynchronous revalidation", ex);
}
}

View File

@ -44,6 +44,8 @@ import org.apache.hc.core5.util.ByteArrayBuffer;
@Internal
interface HttpAsyncCache {
String generateKey (HttpHost host, HttpRequest request, HttpCacheEntry cacheEntry);
/**
* Clear all matching {@link HttpCacheEntry}s.
*/

View File

@ -40,6 +40,8 @@ import org.apache.hc.core5.util.ByteArrayBuffer;
*/
interface HttpCache {
String generateKey (HttpHost host, HttpRequest request, HttpCacheEntry cacheEntry);
/**
* Clear all matching {@link HttpCacheEntry}s.
*/

View File

@ -39,7 +39,7 @@ import org.apache.hc.core5.util.TimeValue;
@Contract(threading = ThreadingBehavior.STATELESS)
public class ImmediateSchedulingStrategy implements SchedulingStrategy {
private final static ImmediateSchedulingStrategy INSTANCE = new ImmediateSchedulingStrategy();
public final static ImmediateSchedulingStrategy INSTANCE = new ImmediateSchedulingStrategy();
@Override
public TimeValue schedule(final int attemptNumber) {

View File

@ -57,7 +57,7 @@ public abstract class AbstractProtocolTest {
protected HttpEntity body;
protected HttpClientContext context;
protected ExecChain mockExecChain;
protected ExecRuntime mockEndpoint;
protected ExecRuntime mockExecRuntime;
protected HttpCache mockCache;
protected ClassicHttpRequest request;
protected ClassicHttpResponse originResponse;
@ -101,18 +101,18 @@ public abstract class AbstractProtocolTest {
cache = new BasicHttpCache(config);
mockExecChain = EasyMock.createNiceMock(ExecChain.class);
mockEndpoint = EasyMock.createNiceMock(ExecRuntime.class);
mockExecRuntime = EasyMock.createNiceMock(ExecRuntime.class);
mockCache = EasyMock.createNiceMock(HttpCache.class);
impl = createCachingExecChain(cache, config);
}
public ClassicHttpResponse execute(final ClassicHttpRequest request) throws IOException, HttpException {
return impl.execute(ClassicRequestCopier.INSTANCE.copy(request), new ExecChain.Scope(
"test", route, request, mockEndpoint, context), mockExecChain);
"test", route, request, mockExecRuntime, context), mockExecChain);
}
protected ExecChainHandler createCachingExecChain(final HttpCache cache, final CacheConfig config) {
return new CachingExec(cache, config);
return new CachingExec(cache, null, config);
}
protected boolean supportsRangeAndContentRangeHeaders(final ExecChainHandler impl) {
@ -148,7 +148,7 @@ public abstract class AbstractProtocolTest {
mockExecChain = EasyMock.createNiceMock(ExecChain.class);
mockCache = EasyMock.createNiceMock(HttpCache.class);
impl = new CachingExec(mockCache, config);
impl = new CachingExec(mockCache, null, config);
EasyMock.expect(mockCache.getCacheEntry(EasyMock.isA(HttpHost.class), EasyMock.isA(HttpRequest.class)))
.andReturn(null).anyTimes();
@ -174,7 +174,7 @@ public abstract class AbstractProtocolTest {
.setMaxObjectSize(MAX_BYTES)
.setSharedCache(false)
.build();
impl = new CachingExec(cache, config);
impl = new CachingExec(cache, null, config);
}
public AbstractProtocolTest() {

View File

@ -65,7 +65,6 @@ import org.easymock.EasyMock;
import org.easymock.IExpectationSetters;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
@SuppressWarnings("boxing") // test code
@ -107,9 +106,10 @@ public class TestCachingExec extends TestCachingExecChain {
final CachedHttpResponseGenerator mockResponseGenerator,
final CacheableRequestPolicy mockRequestPolicy,
final CachedResponseSuitabilityChecker mockSuitabilityChecker,
final ConditionalRequestBuilder<ClassicHttpRequest> mockConditionalRequestBuilder,
final ResponseProtocolCompliance mockResponseProtocolCompliance,
final RequestProtocolCompliance mockRequestProtocolCompliance,
final DefaultCacheRevalidator mockCacheRevalidator,
final ConditionalRequestBuilder<ClassicHttpRequest> mockConditionalRequestBuilder,
final CacheConfig config) {
return impl = new CachingExec(
mockCache,
@ -118,15 +118,16 @@ public class TestCachingExec extends TestCachingExecChain {
mockResponseGenerator,
mockRequestPolicy,
mockSuitabilityChecker,
mockConditionalRequestBuilder,
mockResponseProtocolCompliance,
mockRequestProtocolCompliance,
mockCacheRevalidator,
mockConditionalRequestBuilder,
config);
}
@Override
public CachingExec createCachingExecChain(final HttpCache cache, final CacheConfig config) {
return impl = new CachingExec(cache, config);
return impl = new CachingExec(cache, null, config);
}
@Override
@ -210,7 +211,7 @@ public class TestCachingExec extends TestCachingExecChain {
Assert.assertEquals(1, impl.getCacheUpdates());
}
@Test @Ignore
@Test
public void testUnsuitableValidatableCacheEntryCausesRevalidation() throws Exception {
mockImplMethods(REVALIDATE_CACHE_ENTRY);
requestPolicyAllowsCaching(true);
@ -447,9 +448,10 @@ public class TestCachingExec extends TestCachingExecChain {
mockResponseGenerator,
mockRequestPolicy,
mockSuitabilityChecker,
mockConditionalRequestBuilder,
mockResponseProtocolCompliance,
mockRequestProtocolCompliance,
mockCacheRevalidator,
mockConditionalRequestBuilder,
config).addMockedMethods(methods).createNiceMock();
}

View File

@ -104,10 +104,11 @@ public abstract class TestCachingExecChain {
protected CachedHttpResponseGenerator mockResponseGenerator;
private HttpClientResponseHandler<Object> mockHandler;
private ClassicHttpRequest mockUriRequest;
protected ConditionalRequestBuilder<ClassicHttpRequest> mockConditionalRequestBuilder;
private HttpRequest mockConditionalRequest;
protected ResponseProtocolCompliance mockResponseProtocolCompliance;
protected RequestProtocolCompliance mockRequestProtocolCompliance;
protected DefaultCacheRevalidator mockCacheRevalidator;
protected ConditionalRequestBuilder<ClassicHttpRequest> mockConditionalRequestBuilder;
protected CacheConfig config;
protected HttpRoute route;
@ -130,10 +131,11 @@ public abstract class TestCachingExecChain {
mockUriRequest = createNiceMock(ClassicHttpRequest.class);
mockCacheEntry = createNiceMock(HttpCacheEntry.class);
mockResponseGenerator = createNiceMock(CachedHttpResponseGenerator.class);
mockConditionalRequestBuilder = createNiceMock(ConditionalRequestBuilder.class);
mockConditionalRequest = createNiceMock(HttpRequest.class);
mockResponseProtocolCompliance = createNiceMock(ResponseProtocolCompliance.class);
mockRequestProtocolCompliance = createNiceMock(RequestProtocolCompliance.class);
mockCacheRevalidator = createNiceMock(DefaultCacheRevalidator.class);
mockConditionalRequestBuilder = createNiceMock(ConditionalRequestBuilder.class);
mockStorage = createNiceMock(HttpCacheStorage.class);
config = CacheConfig.DEFAULT;
@ -143,9 +145,9 @@ public abstract class TestCachingExecChain {
context = HttpCacheContext.create();
entry = HttpTestUtils.makeCacheEntry();
impl = createCachingExecChain(mockCache, mockValidityPolicy,
mockResponsePolicy, mockResponseGenerator, mockRequestPolicy, mockSuitabilityChecker,
mockConditionalRequestBuilder, mockResponseProtocolCompliance,
mockRequestProtocolCompliance, config);
mockResponsePolicy, mockResponseGenerator, mockRequestPolicy, mockSuitabilityChecker,
mockResponseProtocolCompliance,mockRequestProtocolCompliance,
mockCacheRevalidator, mockConditionalRequestBuilder, config);
}
public abstract CachingExec createCachingExecChain(
@ -153,8 +155,9 @@ public abstract class TestCachingExecChain {
ResponseCachingPolicy responseCachingPolicy, CachedHttpResponseGenerator responseGenerator,
CacheableRequestPolicy cacheableRequestPolicy,
CachedResponseSuitabilityChecker suitabilityChecker,
ConditionalRequestBuilder<ClassicHttpRequest> conditionalRequestBuilder,
ResponseProtocolCompliance responseCompliance, RequestProtocolCompliance requestCompliance,
DefaultCacheRevalidator cacheRevalidator,
ConditionalRequestBuilder<ClassicHttpRequest> conditionalRequestBuilder,
CacheConfig config);
public abstract CachingExec createCachingExecChain(HttpCache cache, CacheConfig config);
@ -1242,11 +1245,11 @@ public abstract class TestCachingExecChain {
mockCache = EasyMock.createStrictMock(HttpCache.class);
impl = createCachingExecChain(mockCache, mockValidityPolicy,
mockResponsePolicy, mockResponseGenerator, mockRequestPolicy, mockSuitabilityChecker,
mockConditionalRequestBuilder, mockResponseProtocolCompliance,
mockRequestProtocolCompliance, config);
mockResponseProtocolCompliance, mockRequestProtocolCompliance,
mockCacheRevalidator, mockConditionalRequestBuilder, config);
final HttpHost host = new HttpHost("foo.example.com");
final HttpRequest request = new HttpGet("http://foo.example.com/bar");
final ClassicHttpRequest request = new HttpGet("http://foo.example.com/bar");
final Date now = new Date();
final Date requestSent = new Date(now.getTime() - 3 * 1000L);
@ -1260,8 +1263,8 @@ public abstract class TestCachingExecChain {
originResponse.setHeader("ETag", "\"etag\"");
replayMocks();
impl.cacheAndReturnResponse(host, request, originResponse, requestSent, responseReceived);
final ExecChain.Scope scope = new ExecChain.Scope("test", route, request, mockEndpoint, context);
impl.cacheAndReturnResponse(host, request, originResponse, scope, requestSent, responseReceived);
verifyMocks();
}
@ -1269,7 +1272,7 @@ public abstract class TestCachingExecChain {
@Test
public void testSmallEnoughResponsesAreCached() throws Exception {
final HttpHost host = new HttpHost("foo.example.com");
final HttpRequest request = new HttpGet("http://foo.example.com/bar");
final ClassicHttpRequest request = new HttpGet("http://foo.example.com/bar");
final Date now = new Date();
final Date requestSent = new Date(now.getTime() - 3 * 1000L);
@ -1297,7 +1300,8 @@ public abstract class TestCachingExecChain {
same(httpCacheEntry))).andReturn(response).once();
replayMocks();
impl.cacheAndReturnResponse(host, request, originResponse, requestSent, responseReceived);
final ExecChain.Scope scope = new ExecChain.Scope("test", route, request, mockEndpoint, context);
impl.cacheAndReturnResponse(host, request, originResponse, scope, requestSent, responseReceived);
verifyMocks();
}

View File

@ -1,48 +0,0 @@
/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.hc.client5.http.impl.cache;
import org.junit.Test;
public class TestCachingHttpClientBuilder {
@Test
public void testAsynchronousWorkersMax0() throws Exception {
final CacheConfig cacheConfig = CacheConfig.custom()
.setAsynchronousWorkersMax(0)
.build();
// Asynchronous validation should be disabled but we should not get an
// Exception
CachingHttpClientBuilder.create().setCacheConfig(cacheConfig).build();
}
@Test
public void testNullCacheConfig() throws Exception {
CachingHttpClientBuilder.create().setCacheConfig(null).build();
}
}

View File

@ -142,7 +142,7 @@ public class TestHttpCacheJiraNumber1147 {
}
protected ExecChainHandler createCachingExecChain(final BasicHttpCache cache, final CacheConfig config) {
return new CachingExec(cache, config);
return new CachingExec(cache, null, config);
}
}

View File

@ -127,7 +127,7 @@ public class TestProtocolDeviations {
}
protected ExecChainHandler createCachingExecChain(final HttpCache cache, final CacheConfig config) {
return new CachingExec(cache, config);
return new CachingExec(cache, null, config);
}
private ClassicHttpResponse make200Response() {

View File

@ -2166,7 +2166,7 @@ public class TestProtocolRequirements extends AbstractProtocolTest {
final HttpCacheEntry entry = HttpTestUtils.makeCacheEntry(tenSecondsAgo, eightSecondsAgo, hdrs, bytes);
impl = new CachingExec(mockCache, config);
impl = new CachingExec(mockCache, null, config);
request = new BasicClassicHttpRequest("GET", "/thing");
@ -2217,7 +2217,7 @@ public class TestProtocolRequirements extends AbstractProtocolTest {
final HttpCacheEntry entry = HttpTestUtils.makeCacheEntry(tenSecondsAgo, eightSecondsAgo, hdrs, bytes);
impl = new CachingExec(mockCache, config);
impl = new CachingExec(mockCache, null, config);
request = new BasicClassicHttpRequest("GET", "/thing");
EasyMock.expect(mockCache.getCacheEntry(EasyMock.eq(host), eqRequest(request))).andReturn(entry);
@ -2263,7 +2263,7 @@ public class TestProtocolRequirements extends AbstractProtocolTest {
final HttpCacheEntry entry = HttpTestUtils.makeCacheEntry(tenSecondsAgo, eightSecondsAgo, hdrs, bytes);
impl = new CachingExec(mockCache, config);
impl = new CachingExec(mockCache, null, config);
request = new BasicClassicHttpRequest("GET", "/thing");
EasyMock.expect(mockCache.getCacheEntry(EasyMock.eq(host), eqRequest(request))).andReturn(entry);
@ -2471,7 +2471,7 @@ public class TestProtocolRequirements extends AbstractProtocolTest {
final HttpCacheEntry entry = HttpTestUtils.makeCacheEntry(tenSecondsAgo, eightSecondsAgo, hdrs, bytes);
impl = new CachingExec(mockCache, config);
impl = new CachingExec(mockCache, null, config);
request = new BasicClassicHttpRequest("GET", "/thing");
EasyMock.expect(mockCache.getCacheEntry(EasyMock.eq(host), eqRequest(request))).andReturn(entry);
@ -2521,7 +2521,7 @@ public class TestProtocolRequirements extends AbstractProtocolTest {
final HttpCacheEntry entry = HttpTestUtils.makeCacheEntry(requestTime, responseTime, hdrs, bytes);
impl = new CachingExec(mockCache, config);
impl = new CachingExec(mockCache, null, config);
request = new BasicClassicHttpRequest("GET", "/thing");

View File

@ -32,7 +32,10 @@ import static org.junit.Assert.assertTrue;
import java.io.ByteArrayInputStream;
import java.util.Date;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import org.apache.hc.client5.http.impl.schedule.ImmediateSchedulingStrategy;
import org.apache.hc.client5.http.utils.DateUtils;
import org.apache.hc.core5.http.ClassicHttpRequest;
import org.apache.hc.core5.http.ClassicHttpResponse;
@ -41,7 +44,9 @@ import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.HttpStatus;
import org.apache.hc.core5.http.io.entity.InputStreamEntity;
import org.apache.hc.core5.http.message.BasicClassicHttpRequest;
import org.junit.Ignore;
import org.easymock.EasyMock;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
/**
@ -51,6 +56,31 @@ import org.junit.Test;
*/
public class TestRFC5861Compliance extends AbstractProtocolTest {
private ScheduledExecutorService executorService;
@Before
public void setup() {
executorService = new ScheduledThreadPoolExecutor(1);
EasyMock.expect(mockExecRuntime.fork(null)).andReturn(mockExecRuntime).anyTimes();
}
@After
public void cleanup() {
executorService.shutdownNow();
}
@Override
protected void replayMocks() {
super.replayMocks();
EasyMock.replay(mockExecRuntime);
}
@Override
protected void verifyMocks() {
super.verifyMocks();
EasyMock.verify(mockExecRuntime);
}
/*
* "The stale-if-error Cache-Control extension indicates that when an
* error is encountered, a cached stale response MAY be used to satisfy
@ -169,7 +199,7 @@ public class TestRFC5861Compliance extends AbstractProtocolTest {
throws Exception{
final CacheConfig configUnshared = CacheConfig.custom()
.setSharedCache(false).build();
impl = new CachingExec(new BasicHttpCache(configUnshared), configUnshared);
impl = new CachingExec(new BasicHttpCache(configUnshared), null, configUnshared);
final Date tenSecondsAgo = new Date(new Date().getTime() - 10 * 1000L);
final ClassicHttpRequest req1 = HttpTestUtils.makeDefaultRequest();
@ -323,16 +353,16 @@ public class TestRFC5861Compliance extends AbstractProtocolTest {
*
* http://tools.ietf.org/html/rfc5861
*/
@Test @Ignore
@Test
public void testStaleWhileRevalidateReturnsStaleEntryWithWarning()
throws Exception {
config = CacheConfig.custom()
.setMaxCacheEntries(MAX_ENTRIES)
.setMaxObjectSize(MAX_BYTES)
.setAsynchronousWorkersMax(1)
.setAsynchronousWorkers(1)
.build();
impl = new CachingExec(cache, config);
impl = new CachingExec(cache, executorService, ImmediateSchedulingStrategy.INSTANCE, config);
final ClassicHttpRequest req1 = new BasicClassicHttpRequest("GET", "/");
final ClassicHttpResponse resp1 = HttpTestUtils.make200Response();
@ -365,17 +395,12 @@ public class TestRFC5861Compliance extends AbstractProtocolTest {
}
@Test
public void testHTTPCLIENT1470() {
impl = new CachingExec(cache, null);
}
@Test @Ignore
public void testStaleWhileRevalidateReturnsStaleNonRevalidatableEntryWithWarning()
throws Exception {
config = CacheConfig.custom().setMaxCacheEntries(MAX_ENTRIES).setMaxObjectSize(MAX_BYTES)
.setAsynchronousWorkersMax(1).build();
.setAsynchronousWorkers(1).build();
impl = new CachingExec(cache, config);
impl = new CachingExec(cache, executorService, ImmediateSchedulingStrategy.INSTANCE, config);
final ClassicHttpRequest req1 = new BasicClassicHttpRequest("GET", "/");
final ClassicHttpResponse resp1 = HttpTestUtils.make200Response();
@ -406,17 +431,17 @@ public class TestRFC5861Compliance extends AbstractProtocolTest {
assertTrue(warning110Found);
}
@Test @Ignore
@Test
public void testCanAlsoServeStale304sWhileRevalidating()
throws Exception {
config = CacheConfig.custom()
.setMaxCacheEntries(MAX_ENTRIES)
.setMaxObjectSize(MAX_BYTES)
.setAsynchronousWorkersMax(1)
.setAsynchronousWorkers(1)
.setSharedCache(false)
.build();
impl = new CachingExec(cache, config);
impl = new CachingExec(cache, executorService, ImmediateSchedulingStrategy.INSTANCE, config);
final ClassicHttpRequest req1 = new BasicClassicHttpRequest("GET", "/");
final ClassicHttpResponse resp1 = HttpTestUtils.make200Response();
@ -460,9 +485,9 @@ public class TestRFC5861Compliance extends AbstractProtocolTest {
config = CacheConfig.custom()
.setMaxCacheEntries(MAX_ENTRIES)
.setMaxObjectSize(MAX_BYTES)
.setAsynchronousWorkersMax(1)
.setAsynchronousWorkers(1)
.build();
impl = new CachingExec(cache, config);
impl = new CachingExec(cache, null, config);
final ClassicHttpRequest req1 = new BasicClassicHttpRequest("GET", "/");
final ClassicHttpResponse resp1 = HttpTestUtils.make200Response();
@ -508,10 +533,10 @@ public class TestRFC5861Compliance extends AbstractProtocolTest {
config = CacheConfig.custom()
.setMaxCacheEntries(MAX_ENTRIES)
.setMaxObjectSize(MAX_BYTES)
.setAsynchronousWorkersMax(1)
.setAsynchronousWorkers(1)
.setSharedCache(true)
.build();
impl = new CachingExec(cache, config);
impl = new CachingExec(cache, null, config);
final ClassicHttpRequest req1 = new BasicClassicHttpRequest("GET", "/");
final ClassicHttpResponse resp1 = HttpTestUtils.make200Response();
@ -557,10 +582,10 @@ public class TestRFC5861Compliance extends AbstractProtocolTest {
config = CacheConfig.custom()
.setMaxCacheEntries(MAX_ENTRIES)
.setMaxObjectSize(MAX_BYTES)
.setAsynchronousWorkersMax(1)
.setAsynchronousWorkers(1)
.setSharedCache(true)
.build();
impl = new CachingExec(cache, config);
impl = new CachingExec(cache, null, config);
final ClassicHttpRequest req1 = new BasicClassicHttpRequest("GET", "/");
final ClassicHttpResponse resp1 = HttpTestUtils.make200Response();

View File

@ -36,4 +36,8 @@ public final class ExecSupport {
return COUNT.incrementAndGet();
}
public static String getNextExchangeId() {
return String.format("ex-%08X", COUNT.incrementAndGet());
}
}

View File

@ -27,7 +27,10 @@
package org.apache.hc.client5.http.impl;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.apache.hc.core5.concurrent.Cancellable;
@ -42,6 +45,40 @@ public final class Operations {
};
public static class CompletedFuture<T> implements Future<T> {
private final T result;
public CompletedFuture(final T result) {
this.result = result;
}
@Override
public T get() throws InterruptedException, ExecutionException {
return result;
}
@Override
public T get(final long timeout, final TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
return result;
}
@Override
public boolean cancel(final boolean mayInterruptIfRunning) {
return false;
}
@Override
public boolean isCancelled() {
return false;
}
@Override
public boolean isDone() {
return true;
}
};
public static Cancellable nonCancellable() {
return NOOP_CANCELLABLE;
}

View File

@ -158,7 +158,7 @@ abstract class InternalAbstractHttpAsyncClient extends AbstractHttpAsyncClientBa
clientContext.setRequestConfig(requestConfig);
}
final HttpRoute route = determineRoute(request, clientContext);
final String exchangeId = String.format("ex-%08X", ExecSupport.getNextExecNumber());
final String exchangeId = ExecSupport.getNextExchangeId();
final AsyncExecRuntime execRuntime = crerateAsyncExecRuntime();
if (log.isDebugEnabled()) {
log.debug(exchangeId + ": preparing request execution");

View File

@ -210,7 +210,7 @@ public final class MinimalHttp2AsyncClient extends AbstractMinimalHttpAsyncClien
};
if (log.isDebugEnabled()) {
final String exchangeId = String.format("ex-%08X", ExecSupport.getNextExecNumber());
final String exchangeId = ExecSupport.getNextExchangeId();
log.debug(ConnPoolSupport.getId(session) + ": executing message exchange " + exchangeId);
session.addLast(new ExecutionCommand(
new LoggingAsyncClientExchangeHandler(log, exchangeId, internalExchangeHandler),

View File

@ -396,7 +396,7 @@ public final class MinimalHttpAsyncClient extends AbstractMinimalHttpAsyncClient
Asserts.check(!released.get(), "Endpoint has already been released");
if (log.isDebugEnabled()) {
final String exchangeId = String.format("ex-%08X", ExecSupport.getNextExecNumber());
final String exchangeId = ExecSupport.getNextExchangeId();
log.debug(ConnPoolSupport.getId(connectionEndpoint) + ": executing message exchange " + exchangeId);
connectionEndpoint.execute(
new LoggingAsyncClientExchangeHandler(log, exchangeId, exchangeHandler),

View File

@ -158,7 +158,7 @@ class InternalHttpClient extends CloseableHttpClient implements Configurable {
}
setupContext(localcontext);
final HttpRoute route = determineRoute(target, request, localcontext);
final String exchangeId = String.format("ex-%08X", ExecSupport.getNextExecNumber());
final String exchangeId = ExecSupport.getNextExchangeId();
final ExecRuntime execRuntime = new InternalExecRuntime(log, connManager, requestExecutor,
request instanceof CancellableAware ? (CancellableAware) request : null);
final ExecChain.Scope scope = new ExecChain.Scope(exchangeId, route, request, execRuntime, localcontext);