/*
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* Copyright 1999-2019 Seata.io Group.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package io.seata.server.storage.file.lock;
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import io.seata.common.loader.LoadLevel;
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import io.seata.core.exception.TransactionException;
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import io.seata.core.lock.Locker;
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import io.seata.server.lock.AbstractLockManager;
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import io.seata.server.session.BranchSession;
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import io.seata.server.session.GlobalSession;
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import org.slf4j.MDC;
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import java.util.List;
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import static io.seata.core.context.RootContext.MDC_KEY_BRANCH_ID;
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/**
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* The type file lock manager.
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*
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* @author zhangsen
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*/
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@LoadLevel(name = "file")
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public class FileLockManager extends AbstractLockManager {
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@Override
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public Locker getLocker(BranchSession branchSession) {
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return new FileLocker(branchSession);
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}
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@Override
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public boolean releaseGlobalSessionLock(GlobalSession globalSession) throws TransactionException {
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List<BranchSession> branchSessions = globalSession.getBranchSessions();
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boolean releaseLockResult = true;
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for (BranchSession branchSession : branchSessions) {
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try {
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MDC.put(MDC_KEY_BRANCH_ID, String.valueOf(branchSession.getBranchId()));
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if (!this.releaseLock(branchSession)) {
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releaseLockResult = false;
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}
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} finally {
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MDC.remove(MDC_KEY_BRANCH_ID);
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}
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}
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return releaseLockResult;
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}
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}
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