Mercurial > hg > Members > tatsuki > bench > jungle-core
view src/main/java/jp/ac/u_ryukyu/ie/cr/shoshi/jungle/transaction/DefaultTransactionManager.java @ 183:066d9c5758dc
change TreeContext
author | tatsuki |
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date | Mon, 23 Mar 2015 15:44:28 +0900 |
parents | 67d4c68578cf |
children |
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package jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction; import java.util.Iterator; import java.util.concurrent.atomic.AtomicReference; import fj.data.List; import fj.data.TreeMap; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeList; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeListWriter; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.TreeContext; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.TreeNode; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.logger.TreeOperationLog; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.operations.TreeOperation; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.traverser.InterfaceTraverser; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.DefaultEither; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.DefaultError; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Either; import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error; import jp.ac.u_ryukyu.ie.cr.tatsuki.jungle.store.index.ParentIndex; public class DefaultTransactionManager implements TransactionManager { private final AtomicReference<TreeContext> repository; private final TreeContext tip; private final ChangeListWriter writer; private final String uuid; public DefaultTransactionManager(ChangeListWriter _writer, TreeContext _tip, AtomicReference<TreeContext> _repository, String _uuid) { repository = _repository; tip = _tip; writer = _writer; uuid = _uuid; } @Override public Either<Error, TransactionManager> commit(TreeNode newRoot, final TreeOperationLog _log) { long currentRevision = tip.revision(); long nextRevision = currentRevision + 1; final String _treeName = tip.getTreeName(); ChangeList list = new ChangeList() { @Override public Iterator<TreeOperation> iterator() { return _log.iterator(); } @Override public String getTreeName() { return _treeName; } @Override public String uuid() { return uuid; } }; InterfaceTraverser traverser = new InterfaceTraverser(newRoot, true); traverser.createIndex(); TreeContext newTreeContext = new DefaultTreeContext(newRoot , tip, list, uuid, _treeName, nextRevision,traverser); if (repository.compareAndSet(newTreeContext.prev(),newTreeContext)) { TransactionManager txManager = new DefaultTransactionManager(writer, newTreeContext, repository, uuid); return DefaultEither.newB(txManager); } return DefaultEither.newA((Error) new DefaultError()); } @Override public String getUUID() { return uuid; } @Override public long getRevision() { return tip.revision(); } }