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/*******************************************************************************
* Copyright (c) 2004, 2007 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.branch.management.purge;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.osee.framework.branch.management.internal.Activator;
import org.eclipse.osee.framework.core.enums.StorageState;
import org.eclipse.osee.framework.core.exception.OseeArgumentException;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.core.model.Branch;
import org.eclipse.osee.framework.core.model.cache.BranchCache;
import org.eclipse.osee.framework.core.services.IOseeCachingService;
import org.eclipse.osee.framework.database.IOseeDatabaseService;
import org.eclipse.osee.framework.database.core.AbstractDbTxOperation;
import org.eclipse.osee.framework.database.core.IOseeStatement;
import org.eclipse.osee.framework.database.core.OseeConnection;
/**
* @author Megumi Telles
* @author Jeff C. Phillips
* @author Robert A. Fisher
* @author Ryan D. Brooks
*/
public class PurgeBranchOperation extends AbstractDbTxOperation {
//@formatter:off
private static final String SELECT_DELETABLE_GAMMAS =
"SELECT txs1.gamma_id FROM %s txs1 WHERE txs1.branch_id = ? AND txs1.transaction_id <> ? AND NOT EXISTS " +
"(SELECT txs2.branch_id FROM osee_txs txs2 WHERE txs1.gamma_id = txs2.gamma_id AND txs1.branch_id <> txs2.branch_id) AND NOT EXISTS " +
"(SELECT txs3.branch_id FROM osee_txs_archived txs3 WHERE txs1.gamma_id = txs3.gamma_id AND txs1.branch_id <> txs3.branch_id)";
//@formatter:on
private static final String PURGE_GAMMAS = "DELETE FROM %s WHERE gamma_id = ?";
private static final String DELETE_FROM_BRANCH_TABLE = "DELETE FROM osee_branch WHERE branch_id = ?";
private static final String DELETE_FROM_MERGE =
"DELETE FROM osee_merge WHERE merge_branch_id = ? AND source_branch_id = ?";
private static final String DELETE_FROM_CONFLICT = "DELETE FROM osee_conflict WHERE merge_branch_id = ?";
private static final String DELETE_FROM_TX_DETAILS = "DELETE FROM osee_tx_details WHERE branch_id = ?";
private final Branch branch;
private final List<Object[]> deleteableGammas = new ArrayList<Object[]>();
private OseeConnection connection;
private IProgressMonitor monitor;
private final String sourceTableName;
private final IOseeCachingService cachingService;
private final IOseeDatabaseService databaseService;
public PurgeBranchOperation(Branch branch, IOseeCachingService cachingService, IOseeDatabaseService databaseService) {
super(databaseService, String.format("Purge Branch: [(%s)-%s]", branch.getId(), branch.getShortName()),
Activator.PLUGIN_ID);
this.branch = branch;
this.sourceTableName = branch.getArchiveState().isArchived() ? "osee_txs_archived" : "osee_txs";
this.cachingService = cachingService;
this.databaseService = databaseService;
}
@Override
protected void doTxWork(IProgressMonitor monitor, OseeConnection connection) throws OseeCoreException {
this.connection = connection;
this.monitor = monitor;
if (!branch.getAllChildBranches(false).isEmpty()) {
throw new OseeArgumentException("Unable to purge a branch containing children: branchId[%s]", branch.getId());
}
monitor.worked(calculateWork(0.05));
findDeleteableGammas(String.format(SELECT_DELETABLE_GAMMAS, sourceTableName), 0.10);
purgeGammas("osee_artifact", 0.10);
purgeGammas("osee_attribute", 0.10);
purgeGammas("osee_relation_link", 0.10);
String sql = String.format("DELETE FROM %s WHERE branch_id = ?", sourceTableName);
purgeFromTable(sourceTableName, sql, 0.20, branch.getId());
purgeFromTable("Tx Details", DELETE_FROM_TX_DETAILS, 0.09, branch.getId());
purgeFromTable("Conflict", DELETE_FROM_CONFLICT, 0.01, branch.getId());
purgeFromTable("Merge", DELETE_FROM_MERGE, 0.01, branch.getId(), branch.getParentBranch().getId());
purgeFromTable("Branch", DELETE_FROM_BRANCH_TABLE, 0.01, branch.getId());
BranchCache branchCache = cachingService.getBranchCache();
branch.setStorageState(StorageState.PURGED);
branchCache.storeItems(branch);
branch.internalRemovePurgedBranchFromParent();
}
private void purgeGammas(String tableName, double percentage) throws OseeCoreException {
if (!deleteableGammas.isEmpty()) {
monitor.setTaskName(String.format("Purge from %s", tableName));
checkForCancelledStatus(monitor);
String sql = String.format(PURGE_GAMMAS, tableName);
databaseService.runBatchUpdate(connection, sql, deleteableGammas);
}
monitor.worked(calculateWork(percentage));
}
private void purgeFromTable(String tableName, String sql, double percentage, Object... data) throws OseeCoreException {
monitor.setTaskName(String.format("Purge from %s", tableName));
checkForCancelledStatus(monitor);
databaseService.runPreparedUpdate(connection, sql, data);
monitor.worked(calculateWork(percentage));
}
private void findDeleteableGammas(String sql, double percentage) throws OseeCoreException {
IOseeStatement chStmt = databaseService.getStatement(connection);
try {
chStmt.runPreparedQuery(10000, sql, branch.getId(), branch.getBaseTransaction().getId());
while (chStmt.next()) {
deleteableGammas.add(new Object[] {chStmt.getLong(1)});
}
} finally {
chStmt.close();
monitor.worked(calculateWork(percentage));
}
}
}
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