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/*******************************************************************************
* Copyright (c) 2013 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.orcs.core.internal.transaction;
import java.util.Collection;
import java.util.concurrent.Callable;
import org.eclipse.osee.executor.admin.CancellableCallable;
import org.eclipse.osee.framework.core.data.ITransaction;
import org.eclipse.osee.framework.core.exception.OseeExceptions;
import org.eclipse.osee.framework.jdk.core.type.OseeCoreException;
import org.eclipse.osee.framework.jdk.core.util.Lib;
import org.eclipse.osee.logger.Log;
import org.eclipse.osee.orcs.OrcsSession;
import org.eclipse.osee.orcs.core.ds.TransactionData;
import org.eclipse.osee.orcs.core.ds.TransactionResult;
import org.eclipse.osee.orcs.core.ds.TxDataStore;
import org.eclipse.osee.orcs.data.TransactionReadable;
/**
* @author Roberto E. Escobar
*/
public class TxCallableFactory {
private final Log logger;
private final TxDataStore txDataStore;
private final TxDataManager txManager;
public TxCallableFactory(Log logger, TxDataStore txDataStore, TxDataManager txManager) {
super();
this.logger = logger;
this.txDataStore = txDataStore;
this.txManager = txManager;
}
public CancellableCallable<Integer> purgeTransactions(OrcsSession session, final Collection<? extends ITransaction> transactions) {
return new AbstractTxCallable<Integer>("PurgeTransactions", session) {
@Override
protected Integer innerCall() throws Exception {
return txDataStore.purgeTransactions(getSession(), transactions).call();
}
};
}
public CancellableCallable<TransactionReadable> createTx(final TxData txData) {
return new AbstractTxCallable<TransactionReadable>("CommitTransaction", txData.getSession()) {
@Override
protected TransactionReadable innerCall() throws Exception {
TransactionReadable transaction = null;
try {
txManager.startTx(txData);
TransactionResult result = doCommit();
txManager.txCommitSuccess(txData);
transaction = result.getTransaction();
} catch (Exception ex) {
Exception toThrow = ex;
try {
txManager.rollbackTx(txData);
} catch (Exception ex2) {
toThrow = new OseeCoreException("Exception during rollback and commit", ex);
} finally {
OseeExceptions.wrapAndThrow(toThrow);
}
} finally {
txManager.endTx(txData);
}
return transaction;
}
private TransactionResult doCommit() throws Exception {
TransactionData changes = txManager.createChangeData(txData);
Callable<TransactionResult> callable = txDataStore.commitTransaction(getSession(), changes);
return callable.call();
}
};
}
private abstract class AbstractTxCallable<T> extends CancellableCallable<T> {
private final String opName;
private final OrcsSession session;
public AbstractTxCallable(String opName, OrcsSession session) {
super();
this.opName = opName;
this.session = session;
}
protected OrcsSession getSession() {
return session;
}
@Override
public final T call() throws Exception {
long startTime = System.currentTimeMillis();
long endTime = startTime;
T result = null;
try {
if (logger.isTraceEnabled()) {
logger.trace("%s [start] ", opName);
}
result = innerCall();
} finally {
endTime = System.currentTimeMillis() - startTime;
}
if (logger.isTraceEnabled()) {
logger.trace("%s [%s] - completed", opName, Lib.asTimeString(endTime));
}
return result;
}
protected abstract T innerCall() throws Exception;
}
}
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