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package org.eclipse.osee.framework.skynet.core.internal.accessors;
import java.util.Collection;
import java.util.Date;
import org.eclipse.osee.framework.core.data.BranchId;
import org.eclipse.osee.framework.core.enums.TransactionDetailsType;
import org.eclipse.osee.framework.core.enums.TransactionVersion;
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.core.sql.OseeSql;
import org.eclipse.osee.framework.jdk.core.type.MutableInteger;
import org.eclipse.osee.framework.jdk.core.type.OseeCoreException;
import org.eclipse.osee.framework.jdk.core.type.OseeStateException;
import org.eclipse.osee.framework.skynet.core.internal.ServiceUtil;
import org.eclipse.osee.framework.skynet.core.utility.IdJoinQuery;
import org.eclipse.osee.framework.skynet.core.utility.JoinUtility;
import org.eclipse.osee.jdbc.JdbcClient;
import org.eclipse.osee.jdbc.JdbcStatement;
/**
* @author Roberto E. Escobar
*/
public class DatabaseTransactionRecordAccessor implements ITransactionDataAccessor {
private static final String SELECT_BASE_TRANSACTION =
"select * from osee_tx_details where branch_id = ? and tx_type = ?";
private static final String SELECT_BY_TRANSACTION = "select * from osee_tx_details WHERE transaction_id = ?";
private static final String SELECT_HEAD_TRANSACTION =
"select * from osee_tx_details where transaction_id = (select max(transaction_id) from osee_tx_details where branch_id = ?) and branch_id = ?";
private static final String SELECT_TRANSACTIONS_BY_QUERY_ID =
"select * from osee_join_id oji, osee_tx_details txd where oji.query_id = ? and txd.transaction_id = oji.id";
private static final String SELECT_NON_EXISTING_TRANSACTIONS_BY_QUERY_ID =
"select oji.id from osee_join_id oji where oji.query_id = ? and not exists (select 1 from osee_tx_details txd where txd.transaction_id = oji.id)";
private static final String GET_PRIOR_TRANSACTION =
"select max(transaction_id) FROM osee_tx_details where branch_id = ? and transaction_id < ?";
private final JdbcClient jdbcClient;
private final BranchCache branchCache;
private final TransactionRecordFactory factory;
public DatabaseTransactionRecordAccessor(JdbcClient jdbcClient, BranchCache branchCache, TransactionRecordFactory factory) {
this.jdbcClient = jdbcClient;
this.branchCache = branchCache;
this.factory = factory;
}
private synchronized void ensureDependantCachePopulated() throws OseeCoreException {
branchCache.ensurePopulated();
}
@Override
public void loadTransactionRecord(TransactionCache cache, Collection<Integer> transactionIds) throws OseeCoreException {
if (transactionIds.isEmpty()) {
return;
}
ensureDependantCachePopulated();
if (transactionIds.size() > 1) {
IdJoinQuery joinQuery = JoinUtility.createIdJoinQuery(jdbcClient);
try {
for (Integer txNumber : transactionIds) {
joinQuery.add(txNumber);
}
joinQuery.store();
loadTransactions(cache, transactionIds.size(), SELECT_TRANSACTIONS_BY_QUERY_ID, joinQuery.getQueryId());
} finally {
joinQuery.delete();
}
} else {
loadTransaction(cache, SELECT_BY_TRANSACTION, transactionIds.iterator().next());
}
}
@Override
public TransactionRecord loadTransactionRecord(TransactionCache cache, BranchId branch, TransactionVersion transactionType) throws OseeCoreException {
ensureDependantCachePopulated();
TransactionRecord toReturn = null;
switch (transactionType) {
case BASE:
toReturn =
loadTransaction(cache, SELECT_BASE_TRANSACTION, branch.getUuid(), TransactionDetailsType.Baselined);
break;
case HEAD:
toReturn = loadTransaction(cache, SELECT_HEAD_TRANSACTION, branch.getUuid(), branch.getUuid());
break;
default:
throw new OseeStateException("Transaction Type [%s] is not supported", transactionType);
}
return toReturn;
}
private void loadTransactions(TransactionCache cache, int expectedCount, String query, int queryId) throws OseeCoreException {
MutableInteger numberLoaded = new MutableInteger(-1);
loadFromTransaction(cache, expectedCount, numberLoaded, query, queryId);
if (numberLoaded.getValue() != expectedCount) {
JdbcStatement chStmt = jdbcClient.getStatement();
try {
chStmt.runPreparedQuery(expectedCount, SELECT_NON_EXISTING_TRANSACTIONS_BY_QUERY_ID, queryId);
while (chStmt.next()) {
int transactionNumber = chStmt.getInt("id");
factory.getOrCreate(cache, transactionNumber, null);
}
} finally {
chStmt.close();
}
}
}
private TransactionRecord loadTransaction(TransactionCache cache, String query, Object... parameters) throws OseeCoreException {
return loadFromTransaction(cache, 1, new MutableInteger(0), query, parameters);
}
private TransactionRecord loadFromTransaction(TransactionCache cache, int expectedCount, MutableInteger numberLoaded, String query, Object... parameters) throws OseeCoreException {
JdbcStatement chStmt = jdbcClient.getStatement();
TransactionRecord record = null;
int count = 0;
try {
chStmt.runPreparedQuery(expectedCount, query, parameters);
while (chStmt.next()) {
count++;
long branchUuid = chStmt.getLong("branch_id");
int transactionNumber = chStmt.getInt("transaction_id");
String comment = chStmt.getString("osee_comment");
Date timestamp = chStmt.getTimestamp("time");
int authorArtId = chStmt.getInt("author");
int commitArtId = chStmt.getInt("commit_art_id");
TransactionDetailsType txType = TransactionDetailsType.toEnum(chStmt.getInt("tx_type"));
record = prepareTransactionRecord(cache, transactionNumber, branchUuid, comment, timestamp, authorArtId,
commitArtId, txType);
}
numberLoaded.setValue(count);
} finally {
chStmt.close();
}
return record;
}
private TransactionRecord prepareTransactionRecord(TransactionCache cache, int transactionNumber, long branchUuid, String comment, Date timestamp, int authorArtId, int commitArtId, TransactionDetailsType txType) throws OseeCoreException {
TransactionRecord record = factory.createOrUpdate(cache, transactionNumber, branchUuid, comment, timestamp,
authorArtId, commitArtId, txType, branchCache);
record.clearDirty();
return record;
}
@Override
public void load(TransactionCache transactionCache) throws OseeCoreException {
// Not implemented
}
@Override
public TransactionRecord getOrLoadPriorTransaction(TransactionCache cache, int transactionNumber, long branchUuid) throws OseeCoreException {
int priorTransactionId =
jdbcClient.runPreparedQueryFetchObject(-1, GET_PRIOR_TRANSACTION, branchUuid, transactionNumber);
return cache.getOrLoad(priorTransactionId);
}
@Override
public TransactionRecord getHeadTransaction(TransactionCache cache, Branch branch) throws OseeCoreException {
String query = ServiceUtil.getSql(OseeSql.TX_GET_MAX_AS_LARGEST_TX);
return cache.getOrLoad(jdbcClient.runPreparedQueryFetchObject(-1, query, branch.getUuid()));
}
}
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