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// Copyright (C) 2017 The Android Open Source Project
//
// 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.gerrit.server.git.receive;
import static com.google.common.base.Preconditions.checkState;
import com.google.gerrit.server.git.HookUtil;
import java.util.Map;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.transport.AdvertiseRefsHook;
import org.eclipse.jgit.transport.ReceivePack;
import org.eclipse.jgit.transport.ServiceMayNotContinueException;
import org.eclipse.jgit.transport.UploadPack;
/**
* Hook that scans all refs and holds onto the results reference.
*
* <p>This allows a caller who has an {@code AllRefsWatcher} instance to get the full map of refs in
* the repo, even if refs are filtered by a later hook or filter.
*/
class AllRefsWatcher implements AdvertiseRefsHook {
private Map<String, Ref> allRefs;
@Override
public void advertiseRefs(ReceivePack rp) throws ServiceMayNotContinueException {
allRefs = HookUtil.ensureAllRefsAdvertised(rp);
}
@Override
public void advertiseRefs(UploadPack uploadPack) {
throw new UnsupportedOperationException();
}
Map<String, Ref> getAllRefs() {
checkState(allRefs != null, "getAllRefs() only valid after refs were advertised");
return allRefs;
}
}