| // 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.prune; |
| |
| import com.google.codereview.internal.PruneBundles.PruneBundlesRequest; |
| import com.google.codereview.internal.PruneBundles.PruneBundlesResponse; |
| 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; |
| |
| /** Deletes invalid bundles from the data store. */ |
| public class BundlePruner implements Runnable { |
| private static final Log LOG = LogFactory.getLog(BundlePruner.class); |
| |
| private static final PruneBundlesRequest NEXT_REQ = |
| PruneBundlesRequest.getDefaultInstance(); |
| |
| private final Backend server; |
| |
| public BundlePruner(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().pruneBundles(ctrl, NEXT_REQ, |
| new RpcCallback<PruneBundlesResponse>() { |
| public void run(final PruneBundlesResponse rsp) { |
| tryAnother.value = prune(rsp); |
| } |
| }); |
| if (ctrl.failed()) { |
| LOG.warn("pruneBundles failed: " + ctrl.errorText()); |
| tryAnother.value = false; |
| } |
| return tryAnother.value; |
| } |
| |
| private boolean prune(final PruneBundlesResponse rsp) { |
| final PruneBundlesResponse.CodeType sc = rsp.getStatusCode(); |
| |
| if (sc == PruneBundlesResponse.CodeType.QUEUE_EMPTY) { |
| return false; |
| } |
| |
| if (sc == PruneBundlesResponse.CodeType.BUNDLES_PRUNED) { |
| return true; |
| } |
| |
| throw new StopProcessingException("unknown status " + sc.name()); |
| } |
| } |