/**
* Copyright (c) 2002-2011 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.smack.api;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import org.neo4j.smack.pipeline.database.TransactionRegistry;
import org.neo4j.smack.pipeline.database.event.Invocation;
import org.neo4j.smack.pipeline.database.event.Output;
import org.neo4j.smack.routing.annotation.DeserializeWith;
import org.neo4j.smack.routing.annotation.Transactional;
import org.neo4j.smack.serialization.strategy.TransactionStateDeserialization;
import org.neo4j.smack.serialization.strategy.TransactionStateDeserializationStrategy;
public class TransactionService {
private static final UrlReverseLookerUpper url = new UrlReverseLookerUpper();
@POST
@Path("")
public void createTransaction(Invocation req, Output res) {
TransactionRegistry txs = req.getTxRegistry();
Long txId = req.getTxId();
txs.createTransaction(txId);
res.createdAt(url.reverseTransaction(txId));
}
@PUT
@Path("/{tx_id}/state")
@Transactional
@DeserializeWith(TransactionStateDeserializationStrategy.class)
public void setTransactionState(Invocation req, Output res) throws Exception {
TransactionRegistry txs = req.getTxRegistry();
switch(req.<TransactionStateDeserialization>getContent()) {
case COMMITTED:
txs.commitCurrentTransaction();
break;
case ROLLED_BACK:
txs.rollbackCurrentTransaction();
break;
default:
throw new IllegalArgumentException("Only COMMITTED and ROLLED_BACK transaction states can be set.");
}
res.ok();
}
}