org.glassfish.jersey.client.ClientFilteringStages Maven / Gradle / Ivy
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package org.glassfish.jersey.client;
import java.io.IOException;
import javax.ws.rs.client.ClientException;
import javax.ws.rs.client.ClientRequestFilter;
import javax.ws.rs.client.ClientResponseFilter;
import javax.ws.rs.core.Response;
import org.glassfish.jersey.internal.inject.Providers;
import org.glassfish.jersey.process.internal.AbstractChainableStage;
import org.glassfish.jersey.process.internal.ChainableStage;
import org.glassfish.jersey.model.internal.RankedComparator;
import org.glassfish.hk2.api.ServiceLocator;
/**
* Client filtering stage factory.
*
* @author Marek Potociar (marek.potociar at oracle.com)
*/
class ClientFilteringStages {
private ClientFilteringStages() {
// Prevents instantiation
}
/**
* Create client request filtering stage using the service locator. May return {@code null}.
*
* @param locator HK2 service locator to be used.
* @return configured request filtering stage, or {@code null} in case there are no
* {@link ClientRequestFilter client request filters} registered in the service
* locator.
*/
static ChainableStage createRequestFilteringStage(final ServiceLocator locator) {
final RankedComparator comparator = new RankedComparator(RankedComparator.Order.ASCENDING);
final Iterable requestFilters = Providers.getAllProviders(locator, ClientRequestFilter.class, comparator);
return requestFilters.iterator().hasNext() ? new RequestFilteringStage(requestFilters) : null;
}
/**
* Create client response filtering stage using the service locator. May return {@code null}.
*
* @param locator HK2 service locator to be used.
* @return configured response filtering stage, or {@code null} in case there are no
* {@link ClientResponseFilter client response filters} registered in the service
* locator.
*/
static ChainableStage createResponseFilteringStage(final ServiceLocator locator) {
final RankedComparator comparator = new RankedComparator(RankedComparator.Order.DESCENDING);
final Iterable responseFilters = Providers.getAllProviders(locator, ClientResponseFilter.class, comparator);
return responseFilters.iterator().hasNext() ? new ResponseFilterStage(responseFilters) : null;
}
private static final class RequestFilteringStage extends AbstractChainableStage {
private final Iterable requestFilters;
private RequestFilteringStage(final Iterable requestFilters) {
this.requestFilters = requestFilters;
}
@Override
public Continuation apply(ClientRequest requestContext) {
for (ClientRequestFilter filter : requestFilters) {
try {
filter.filter(requestContext);
final Response abortResponse = requestContext.getAbortResponse();
if (abortResponse != null) {
throw new AbortException(new ClientResponse(requestContext, abortResponse));
}
} catch (IOException ex) {
throw new ClientException(ex);
}
}
return Continuation.of(requestContext, getDefaultNext());
}
}
private static class ResponseFilterStage extends AbstractChainableStage {
private final Iterable filters;
private ResponseFilterStage(Iterable filters) {
this.filters = filters;
}
@Override
public Continuation apply(ClientResponse responseContext) {
try {
for (ClientResponseFilter filter : filters) {
filter.filter(responseContext.getRequestContext(), responseContext);
}
} catch (IOException ex) {
throw new ClientException(ex);
}
return Continuation.of(responseContext, getDefaultNext());
}
}
}