/**
* JBoss, Home of Professional Open Source
* Copyright 2012, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed 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.
*/
package org.jboss.arquillian.warp.impl.client.execution;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.jboss.arquillian.core.api.Event;
import org.jboss.arquillian.core.api.Instance;
import org.jboss.arquillian.core.api.annotation.Inject;
import org.jboss.arquillian.core.spi.ServiceLoader;
import org.jboss.arquillian.warp.exception.ClientWarpExecutionException;
import org.jboss.arquillian.warp.exception.ServerWarpExecutionException;
import org.jboss.arquillian.warp.exception.WarpExecutionException;
import org.jboss.arquillian.warp.impl.client.enrichment.HttpResponseDeenrichmentService;
import org.jboss.arquillian.warp.impl.client.event.VerifyResponsePayload;
import org.jboss.arquillian.warp.impl.server.inspection.PayloadRegistry;
import org.jboss.arquillian.warp.impl.server.inspection.PayloadRegistry.ResponsePayloadWasNeverRegistered;
import org.jboss.arquillian.warp.impl.shared.ResponsePayload;
import org.jboss.arquillian.warp.impl.shared.command.Command;
import org.jboss.arquillian.warp.impl.shared.command.CommandService;
import org.jboss.arquillian.warp.impl.utils.SerializationUtils;
import org.jboss.arquillian.warp.spi.WarpCommons;
import org.jboss.netty.handler.codec.http.HttpRequest;
import org.jboss.netty.handler.codec.http.HttpResponse;
/**
* Default service for de-enriching responses.
*
* @author Lukas Fryc
*/
public class DefaultResponseDeenrichmentService implements HttpResponseDeenrichmentService {
private final Logger log = Logger.getLogger(HttpResponseDeenrichmentService.class.getName());
@Inject
private Event<VerifyResponsePayload> verifyResponsePayload;
@Inject
private Instance<ServiceLoader> serviceLoader;
/*
* (non-Javadoc)
*
* @see
* org.jboss.arquillian.warp.impl.client.enrichment.HttpResponseDeenrichmentService#isEnriched(org.jboss.netty.handler.codec
* .http.HttpResponse)
*/
@Override
public boolean isEnriched(HttpRequest request, HttpResponse response) {
Long serialId = getSerialId(request);
return serialId != null;
}
/*
* (non-Javadoc)
*
* @see
* org.jboss.arquillian.warp.impl.client.enrichment.HttpResponseDeenrichmentService#deenrichResponse(org.jboss.netty.handler
* .codec.http.HttpResponse)
*/
@Override
public void deenrichResponse(HttpRequest request, HttpResponse response) {
final WarpContext context = WarpContextStore.get();
try {
long serialId = getSerialId(request);
ResponsePayload payload = retrieveResponsePayload(serialId);
if (context != null) {
verifyResponsePayload.fire(new VerifyResponsePayload(payload));
context.pushResponsePayload(payload);
}
} catch (Exception originalException) {
if (context != null) {
WarpExecutionException explainingException;
if (originalException instanceof WarpExecutionException) {
explainingException = (WarpExecutionException) originalException;
} else {
explainingException = new ClientWarpExecutionException("deenriching response failed: "
+ originalException.getMessage(), originalException);
}
context.pushException(explainingException);
} else {
log.log(Level.WARNING, "Unable to push exception to WarpContext", originalException);
}
}
}
/**
* Contacts server and tries to retrieve response payload via serialId.
*
* Repeats the retrieval until the payload is found or number of allowed iterations is reached.
*/
private ResponsePayload retrieveResponsePayload(long serialId) throws InterruptedException {
ResponsePayloadWasNeverRegistered last = null;
for (int i = 0; i <= 10; i++) {
try {
RetrievePayloadFromServer result = remoteOperationService().execute(new RetrievePayloadFromServer(serialId));
return result.getResponsePayload();
} catch (ResponsePayloadWasNeverRegistered e) {
Thread.sleep(300);
last = e;
} catch (Throwable e) {
throw new ServerWarpExecutionException("failed to retrieve a response payloade: " + e.getMessage(), e);
}
}
throw last;
}
private Long getSerialId(HttpRequest request) {
String header = request.getHeader(WarpCommons.ENRICHMENT_REQUEST);
if (header == null || header.isEmpty()) {
return null;
}
return Long.valueOf(header);
}
private CommandService remoteOperationService() {
return serviceLoader.get().onlyOne(CommandService.class);
}
/**
* Command which retrieves the inspection payload from server
*/
public static class RetrievePayloadFromServer implements Command {
private static final long serialVersionUID = 1L;
@Inject
private transient Instance<PayloadRegistry> registry;
private long serialId;
private byte[] serializedPayload;
public RetrievePayloadFromServer(long serialId) {
this.serialId = serialId;
}
public ResponsePayload getResponsePayload() {
return SerializationUtils.deserializeFromBytes(serializedPayload);
}
@Override
public void perform() {
ResponsePayload responsePayload = registry.get().retrieveResponsePayload(serialId);
serializedPayload = SerializationUtils.serializeToBytes(responsePayload);
}
}
}