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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.core.server.internal.session;
import java.util.Date;
import java.util.Random;
import org.eclipse.osee.framework.core.server.internal.util.CharJoinQuery;
import org.eclipse.osee.framework.core.server.internal.util.DatabaseJoinAccessor;
import org.eclipse.osee.framework.core.server.internal.util.IJoinAccessor;
import org.eclipse.osee.framework.core.server.internal.util.OseeInfo;
import org.eclipse.osee.framework.jdk.core.type.OseeCoreException;
import org.eclipse.osee.framework.jdk.core.util.Strings;
import org.eclipse.osee.jdbc.JdbcClient;
import org.eclipse.osee.jdbc.JdbcStatement;
/**
* @author Roberto E. Escobar
*/
public final class DatabaseSessionQuery implements ISessionQuery {
private static final Long DEFAULT_JOIN_EXPIRATION_SECONDS = 3L * 60L * 60L; // 3 hours
private static final String EXPIRATION_SECS__CHAR_JOIN_QUERY = "char.join.expiration.secs";
private static final String SELECT_ALL_SESSIONS = "select * from osee_session";
private static final String SELECT_SESSIONS_BY_SESSION_ID =
"select * from osee_session, osee_join_char_id jid WHERE session_id = jid.id and jid.query_id = ?";
private final JdbcClient jdbcClient;
private final IJoinAccessor joinAccessor;
private final Random random = new Random();
public DatabaseSessionQuery(JdbcClient jdbcClient) {
super();
this.jdbcClient = jdbcClient;
this.joinAccessor = new DatabaseJoinAccessor(jdbcClient);
}
@Override
public void selectAllServerManagedSessions(ISessionCollector collector) throws OseeCoreException {
querySessions(collector, SELECT_ALL_SESSIONS);
}
@Override
public void selectSessionsById(ISessionCollector collector, Iterable<? extends String> ids) throws OseeCoreException {
CharJoinQuery joinQuery = createCharJoinQuery();
try {
for (String id : ids) {
joinQuery.add(id);
}
joinQuery.store();
querySessions(collector, SELECT_SESSIONS_BY_SESSION_ID, joinQuery.getQueryId());
} finally {
joinQuery.delete();
}
}
private void querySessions(ISessionCollector collector, String sql, Object... params) throws OseeCoreException {
JdbcStatement chStmt = jdbcClient.getStatement();
try {
chStmt.runPreparedQuery(sql, params);
while (chStmt.next()) {
String sessionGuid = chStmt.getString("session_id");
String userId = chStmt.getString("user_id");
Date creationDate = chStmt.getTimestamp("created_on");
String clientVersion = chStmt.getString("client_version");
String clientMachineName = chStmt.getString("client_machine_name");
String clientAddress = chStmt.getString("client_address");
int clientPort = chStmt.getInt("client_port");
collector.collect(sessionGuid, userId, creationDate, clientVersion, clientMachineName, clientAddress,
clientPort);
}
} finally {
chStmt.close();
}
}
private int getNewQueryId() {
return random.nextInt();
}
private CharJoinQuery createCharJoinQuery() {
Long actualExpiration = getExpiresIn(null, EXPIRATION_SECS__CHAR_JOIN_QUERY);
return new CharJoinQuery(joinAccessor, actualExpiration, getNewQueryId());
}
private Long getExpiresIn(Long actual, String defaultKey) {
Long toReturn = DEFAULT_JOIN_EXPIRATION_SECONDS;
if (actual != null) {
toReturn = actual;
} else {
String expiration = OseeInfo.getCachedValue(jdbcClient, defaultKey);
if (Strings.isNumeric(expiration)) {
toReturn = Long.parseLong(expiration);
}
}
return toReturn;
}
}
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