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/*******************************************************************************
* ============LICENSE_START====================================================
* * org.onap.aaf
* * ===========================================================================
* * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* * ===========================================================================
* * Licensed under the Apache License, Version 2.0 (the "License");
* * you may not use this file except in compliance with the License.
* * You may obtain a copy of the License at
* *
* * http://www.apache.org/licenses/LICENSE-2.0
* *
* * Unless required by applicable law or agreed to in writing, software
* * distributed under the License is distributed on an "AS IS" BASIS,
* * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* * See the License for the specific language governing permissions and
* * limitations under the License.
* * ============LICENSE_END====================================================
* *
* * ECOMP is a trademark and service mark of AT&T Intellectual Property.
* *
******************************************************************************/
package org.onap.aaf.dao.aaf.cass;
import java.nio.ByteBuffer;
import java.util.Date;
import java.util.List;
import java.util.UUID;
import org.onap.aaf.authz.env.AuthzTrans;
import org.onap.aaf.authz.layer.Result;
import org.onap.aaf.dao.CassDAOImpl;
import org.onap.aaf.dao.DAOException;
import org.onap.aaf.dao.Loader;
import com.datastax.driver.core.Cluster;
import com.datastax.driver.core.ResultSet;
import com.datastax.driver.core.Row;
/**
* FutureDAO stores Construction information to create
* elements at another time.
*
* 8/20/2013
*/
public class FutureDAO extends CassDAOImpl<AuthzTrans,FutureDAO.Data> {
private static final String TABLE = "future";
private final HistoryDAO historyDAO;
// private static String createString;
private PSInfo psByStartAndTarget;
public FutureDAO(AuthzTrans trans, Cluster cluster, String keyspace) {
super(trans, FutureDAO.class.getSimpleName(),cluster, keyspace, Data.class,TABLE, readConsistency(trans,TABLE), writeConsistency(trans,TABLE));
historyDAO = new HistoryDAO(trans, this);
init(trans);
}
public FutureDAO(AuthzTrans trans, HistoryDAO hDAO) {
super(trans, FutureDAO.class.getSimpleName(),hDAO, Data.class,TABLE, readConsistency(trans,TABLE), writeConsistency(trans,TABLE));
historyDAO=hDAO;
init(trans);
}
public static final int KEYLIMIT = 1;
public static class Data {
public UUID id;
public String target;
public String memo;
public Date start;
public Date expires;
public ByteBuffer construct; // this is a blob in cassandra
}
private static class FLoader extends Loader<Data> {
public FLoader() {
super(KEYLIMIT);
}
public FLoader(int keylimit) {
super(keylimit);
}
@Override
public Data load(Data data, Row row) {
data.id = row.getUUID(0);
data.target = row.getString(1);
data.memo = row.getString(2);
data.start = row.getDate(3);
data.expires = row.getDate(4);
data.construct = row.getBytes(5);
return data;
}
@Override
protected void key(Data data, int idx, Object[] obj) {
obj[idx] = data.id;
}
@Override
protected void body(Data data, int _idx, Object[] obj) {
int idx = _idx;
obj[idx] = data.target;
obj[++idx] = data.memo;
obj[++idx] = data.start;
obj[++idx] = data.expires;
obj[++idx] = data.construct;
}
}
private void init(AuthzTrans trans) {
// Set up sub-DAOs
String[] helpers = setCRUD(trans, TABLE, Data.class, new FLoader(KEYLIMIT));
// Uh, oh. Can't use "now()" in Prepared Statements (at least at this level)
// createString = "INSERT INTO " + TABLE + " ("+helpers[FIELD_COMMAS] +") VALUES (now(),";
//
// // Need a specialty Creator to handle the "now()"
// replace(CRUD.Create, new PSInfo(trans, "INSERT INTO future (" + helpers[FIELD_COMMAS] +
// ") VALUES(now(),?,?,?,?,?)",new FLoader(0)));
// Other SELECT style statements... match with a local Method
psByStartAndTarget = new PSInfo(trans, SELECT_SP + helpers[FIELD_COMMAS] +
" FROM future WHERE start <= ? and target = ? ALLOW FILTERING", new FLoader(2) {
@Override
protected void key(Data data, int _idx, Object[] obj) {
int idx = _idx;
obj[idx]=data.start;
obj[++idx]=data.target;
}
},readConsistency);
}
public Result<List<Data>> readByStartAndTarget(AuthzTrans trans, Date start, String target) throws DAOException {
return psByStartAndTarget.read(trans, R_TEXT, new Object[]{start, target});
}
/**
* Override create to add secondary ID to Subject in History, and create Data.ID, if it is null
*/
public Result<FutureDAO.Data> create(AuthzTrans trans, FutureDAO.Data data, String id) {
// If ID is not set (typical), create one.
if(data.id==null) {
StringBuilder sb = new StringBuilder(trans.user());
sb.append(data.target);
sb.append(System.currentTimeMillis());
data.id = UUID.nameUUIDFromBytes(sb.toString().getBytes());
}
Result<ResultSet> rs = createPS.exec(trans, C_TEXT, data);
if(rs.notOK()) {
return Result.err(rs);
}
wasModified(trans, CRUD.create, data, null, id);
return Result.ok(data);
}
/**
* Log Modification statements to History
*
* @param modified which CRUD action was done
* @param data entity data that needs a log entry
* @param overrideMessage if this is specified, we use it rather than crafting a history message based on data
*/
@Override
protected void wasModified(AuthzTrans trans, CRUD modified, Data data, String ... override) {
boolean memo = override.length>0 && override[0]!=null;
boolean subject = override.length>1 && override[1]!=null;
HistoryDAO.Data hd = HistoryDAO.newInitedData();
hd.user = trans.user();
hd.action = modified.name();
hd.target = TABLE;
hd.subject = subject?override[1]:"";
hd.memo = memo?String.format("%s by %s", override[0], hd.user):data.memo;
if(historyDAO.create(trans, hd).status!=Status.OK) {
trans.error().log("Cannot log to History");
}
}
}
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