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// Copyright 2008 Google Inc.
//
// 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 com.google.codereview.manager.unpack;
import com.google.codereview.internal.NextReceivedBundle.NextReceivedBundleRequest;
import com.google.codereview.internal.NextReceivedBundle.NextReceivedBundleResponse;
import com.google.codereview.internal.UpdateReceivedBundle.UpdateReceivedBundleRequest;
import com.google.codereview.internal.UpdateReceivedBundle.UpdateReceivedBundleResponse;
import com.google.codereview.manager.Backend;
import com.google.codereview.manager.StopProcessingException;
import com.google.codereview.rpc.SimpleController;
import com.google.codereview.util.MutableBoolean;
import com.google.protobuf.RpcCallback;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/** Obtains newly received bundles and unpacks them into Git. */
public class ReceivedBundleUnpacker implements Runnable {
private static final Log LOG =
LogFactory.getLog(ReceivedBundleUnpacker.class);
private static final NextReceivedBundleRequest NEXT_REQ =
NextReceivedBundleRequest.getDefaultInstance();
private final Backend server;
public ReceivedBundleUnpacker(final Backend be) {
server = be;
}
public void run() {
try {
runImpl();
} catch (RuntimeException err) {
LOG.fatal("Unexpected runtime failure", err);
throw err;
} catch (Error err) {
LOG.fatal("Unexpected runtime failure", err);
throw err;
}
}
private void runImpl() {
boolean tryAnother;
do {
tryAnother = next();
} while (tryAnother);
}
private boolean next() {
final MutableBoolean tryAnother = new MutableBoolean();
final SimpleController ctrl = new SimpleController();
server.getBundleStoreService().nextReceivedBundle(ctrl, NEXT_REQ,
new RpcCallback<NextReceivedBundleResponse>() {
public void run(final NextReceivedBundleResponse rsp) {
tryAnother.value = unpack(rsp);
}
});
if (ctrl.failed()) {
LOG.warn("nextReceivedBundle failed: " + ctrl.errorText());
tryAnother.value = false;
}
return tryAnother.value;
}
private boolean unpack(final NextReceivedBundleResponse rsp) {
final NextReceivedBundleResponse.CodeType sc = rsp.getStatusCode();
if (sc == NextReceivedBundleResponse.CodeType.QUEUE_EMPTY) {
return false;
}
if (sc == NextReceivedBundleResponse.CodeType.BUNDLE_AVAILABLE) {
send(unpackImpl(rsp));
return true;
}
throw new StopProcessingException("unknown status " + sc.name());
}
protected UpdateReceivedBundleRequest unpackImpl(
final NextReceivedBundleResponse rsp) {
return new UnpackBundleOp(server, rsp).unpack();
}
private void send(final UpdateReceivedBundleRequest req) {
final String key = req.getBundleKey();
final String sc = req.getStatusCode().name();
LOG.debug("Bundle " + key + ", status " + sc);
final SimpleController ctrl = new SimpleController();
server.getBundleStoreService().updateReceivedBundle(ctrl, req,
new RpcCallback<UpdateReceivedBundleResponse>() {
public void run(final UpdateReceivedBundleResponse rsp) {
final UpdateReceivedBundleResponse.CodeType sc =
rsp.getStatusCode();
if (sc != UpdateReceivedBundleResponse.CodeType.UPDATED) {
ctrl.setFailed(sc.name());
}
}
});
if (ctrl.failed()) {
LOG.error("Updating bundle " + key + " failed: " + ctrl.errorText());
}
}
}
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