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/*******************************************************************************
* Copyright (c) 2009 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.framework.skynet.core.internal.accessors;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.osee.framework.core.data.OseeServerContext;
import org.eclipse.osee.framework.core.enums.CacheOperation;
import org.eclipse.osee.framework.core.enums.CoreTranslatorId;
import org.eclipse.osee.framework.core.enums.TransactionVersion;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.core.message.CacheUpdateRequest;
import org.eclipse.osee.framework.core.message.TransactionCacheUpdateResponse;
import org.eclipse.osee.framework.core.model.Branch;
import org.eclipse.osee.framework.core.model.TransactionRecord;
import org.eclipse.osee.framework.core.model.TransactionRecordFactory;
import org.eclipse.osee.framework.core.model.cache.BranchCache;
import org.eclipse.osee.framework.core.model.cache.ITransactionDataAccessor;
import org.eclipse.osee.framework.core.model.cache.TransactionCache;
import org.eclipse.osee.framework.database.core.ConnectionHandler;
import org.eclipse.osee.framework.skynet.core.artifact.HttpClientMessage;
/**
* @author Roberto E. Escobar
*/
public class ClientTransactionAccessor implements ITransactionDataAccessor {
private static final String GET_PRIOR_TRANSACTION =
"select transaction_id FROM osee_tx_details where branch_id = ? and transaction_id < ? order by transaction_id desc";
private final TransactionRecordFactory txFactory;
private final BranchCache branchCache;
public ClientTransactionAccessor(TransactionRecordFactory txFactory, BranchCache branchCache) {
super();
this.txFactory = txFactory;
this.branchCache = branchCache;
}
@Override
public void loadTransactionRecord(TransactionCache cache, Collection<Integer> transactionIds) throws OseeCoreException {
CacheUpdateRequest request = new CacheUpdateRequest(cache.getCacheId(), transactionIds);
requestUpdateMessage(cache, request);
}
@Override
public void loadTransactionRecord(TransactionCache cache, Branch branch) {
// provided for subclass implementation
}
@Override
public TransactionRecord loadTransactionRecord(TransactionCache cache, Branch branch, TransactionVersion transactionType) {
return null;
}
@Override
public void load(TransactionCache transactionCache) throws OseeCoreException {
requestUpdateMessage(transactionCache, new CacheUpdateRequest(transactionCache.getCacheId()));
}
protected void requestUpdateMessage(TransactionCache cache, CacheUpdateRequest updateRequest) throws OseeCoreException {
Map<String, String> parameters = new HashMap<String, String>();
parameters.put("function", CacheOperation.UPDATE.name());
TransactionCacheUpdateResponse response =
HttpClientMessage.send(OseeServerContext.CACHE_CONTEXT, parameters,
CoreTranslatorId.OSEE_CACHE_UPDATE_REQUEST, updateRequest, CoreTranslatorId.TX_CACHE_UPDATE_RESPONSE);
for (TransactionRecord row : response.getTxRows()) {
TransactionRecord record =
txFactory.createOrUpdate(cache, row.getId(), row.getBranchId(), row.getComment(), row.getTimeStamp(),
row.getAuthor(), row.getCommit(), row.getTxType());
record.setBranchCache(branchCache);
record.clearDirty();
}
}
@Override
public TransactionRecord getOrLoadPriorTransaction(TransactionCache cache, int transactionNumber, int branchId) throws OseeCoreException {
int priorTransactionId =
ConnectionHandler.runPreparedQueryFetchInt(-1, GET_PRIOR_TRANSACTION, branchId, transactionNumber);
return cache.getOrLoad(priorTransactionId);
}
}
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