Java tutorial
/* * RESTHeart - the Web API for MongoDB * Copyright (C) SoftInstigate Srl * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.restheart.db.sessions; import com.mongodb.ClientSessionOptions; import com.mongodb.TransactionOptions; import com.mongodb.client.ClientSession; import com.mongodb.client.internal.MongoClientDelegate; import com.mongodb.internal.session.BaseClientSessionImpl; import com.mongodb.internal.session.ServerSessionPool; import java.util.Objects; import java.util.UUID; /** * * @author Andrea Di Cesare <andrea@softinstigate.com> */ public class ClientSessionImpl extends BaseClientSessionImpl implements ClientSession { protected boolean messageSentInCurrentTransaction; private boolean causallyConsistent = true; public ClientSessionImpl(final ServerSessionPool serverSessionPool, final Object originator, final ClientSessionOptions options, final MongoClientDelegate delegate) { super(serverSessionPool, originator, options); } public ClientSessionImpl(final ServerSessionPool serverSessionPool, final Object originator, final ClientSessionOptions options) { super(serverSessionPool, originator, options); } public void setMessageSentInCurrentTransaction(boolean messageSentInCurrentTransaction) { this.messageSentInCurrentTransaction = messageSentInCurrentTransaction; } public boolean isMessageSentInCurrentTransaction() { return this.messageSentInCurrentTransaction; } @Override public boolean hasActiveTransaction() { return false; } @Override public boolean isCausallyConsistent() { return causallyConsistent; } public void setCausallyConsistent(boolean causallyConsistent) { this.causallyConsistent = causallyConsistent; } @Override public boolean notifyMessageSent() { boolean firstMessageInCurrentTransaction = !messageSentInCurrentTransaction; messageSentInCurrentTransaction = true; return firstMessageInCurrentTransaction; } @Override public TransactionOptions getTransactionOptions() { throw new UnsupportedOperationException(); } @Override public void startTransaction() { throw new UnsupportedOperationException(); } @Override public void startTransaction(final TransactionOptions transactionOptions) { throw new UnsupportedOperationException(); } @Override @SuppressWarnings("deprecation") public void commitTransaction() { throw new UnsupportedOperationException(); } @Override @SuppressWarnings("deprecation") public void abortTransaction() { throw new UnsupportedOperationException(); } @Override public void close() { // this release the session from the pool, // not required in our implementation // super.close(); } @Override public int hashCode() { return Objects.hash(getSid()); } public UUID getSid() { return getSid(this); } public static UUID getSid(ClientSession cs) { if (cs != null && cs.getServerSession() != null && cs.getServerSession().getIdentifier() != null && cs.getServerSession().getIdentifier().isDocument() && cs.getServerSession().getIdentifier().asDocument().containsKey("id") && cs.getServerSession().getIdentifier().asDocument().get("id").isBinary()) { return cs.getServerSession().getIdentifier().asDocument().get("id").asBinary().asUuid(); } else { return null; } } }