/**
* Step 2 of the bootstrapping process.
*
* <p>Calculating the the extent for each image level (original + pyramids). This calculation is
* only done if the extent info in the master table is SQL NULL. After calculation the meta table
* is updated with the result to avoid this operation in the future.
*
* @param coverageName The coverage name in the sql meta table
* @param con JDBC connection
* @throws SQLException
* @throws IOException
*/
void calculateExtentsFromDB(String coverageName, Connection con)
throws SQLException, IOException {
PreparedStatement stmt = con.prepareStatement(config.getSqlUpdateMosaicStatement());
List<ImageLevelInfo> toBeRemoved = new ArrayList<ImageLevelInfo>();
for (ImageLevelInfo li : levelInfos) {
if (li.getCoverageName().equals(coverageName) == false) {
continue;
}
if (li.calculateExtentsNeeded() == false) {
continue;
}
Date start = new Date();
if (LOGGER.isLoggable(Level.INFO)) LOGGER.info("Calculate extent for " + li.toString());
Envelope env = getExtent(li, con);
if (env == null) {
if (LOGGER.isLoggable(Level.WARNING))
LOGGER.log(Level.WARNING, "No extent, removing this level");
toBeRemoved.add(li);
continue;
}
li.setExtentMaxX(new Double(env.getMaxX()));
li.setExtentMaxY(new Double(env.getMaxY()));
li.setExtentMinX(new Double(env.getMinX()));
li.setExtentMinY(new Double(env.getMinY()));
stmt.setDouble(1, li.getExtentMaxX().doubleValue());
stmt.setDouble(2, li.getExtentMaxY().doubleValue());
stmt.setDouble(3, li.getExtentMinX().doubleValue());
stmt.setDouble(4, li.getExtentMinY().doubleValue());
stmt.setString(5, li.getCoverageName());
stmt.setString(6, li.getTileTableName());
stmt.setString(7, li.getSpatialTableName());
stmt.execute();
long msecs = (new Date()).getTime() - start.getTime();
if (LOGGER.isLoggable(Level.INFO))
LOGGER.info("Calculate extent for " + li.toString() + " finished in " + msecs + " ms ");
}
levelInfos.removeAll(toBeRemoved);
if (stmt != null) {
stmt.close();
}
}
/**
* Step 1 of the bootstrapping process. Read meta table and build the ImageLevelInfo objects
*
* @param coverageName the coverage name stored in the sql meta table
* @param con jdbc connection
* @throws SQLException
* @throws IOException
*/
protected void initFromDB(String coverageName, Connection con) throws SQLException, IOException {
PreparedStatement s = null;
ResultSet res = null;
try {
String stmt = config.getSqlSelectCoverageStatement();
// TODO, investigate, setString for oracle does not work
stmt = stmt.replace("?", "'" + coverageName + "'");
s = con.prepareStatement(stmt);
// s.setString(1,coverageName);
res = s.executeQuery();
while (res.next()) {
ImageLevelInfo imageLevelInfo = new ImageLevelInfo();
imageLevelInfo.setCoverageName(coverageName);
imageLevelInfo.setSpatialTableName(res.getString(config.getSpatialTableNameAtribute()));
imageLevelInfo.setTileTableName((res.getString(config.getTileTableNameAtribute())));
// check cardinalities
if (config.getVerifyCardinality().booleanValue()) {
imageLevelInfo.setCountFeature(
new Integer(getRowCount(imageLevelInfo.getSpatialTableName(), con)));
if (imageLevelInfo.getSpatialTableName().equals(imageLevelInfo.getTileTableName())) {
imageLevelInfo.setCountTiles(imageLevelInfo.getCountFeature());
} else {
imageLevelInfo.setCountTiles(
new Integer(getRowCount(imageLevelInfo.getTileTableName(), con)));
}
if (imageLevelInfo.getCountFeature().intValue() == 0) {
LOGGER.severe("Table " + imageLevelInfo.getSpatialTableName() + " has no entries");
} else if (imageLevelInfo.getCountTiles().intValue() == 0) {
LOGGER.severe("Table " + imageLevelInfo.getTileTableName() + " has no entries");
} else if (imageLevelInfo.getCountFeature().intValue()
!= imageLevelInfo.getCountTiles().intValue()) {
if (LOGGER.isLoggable(Level.WARNING))
LOGGER.log(
Level.WARNING,
"Consistency warning: number of features: "
+ imageLevelInfo.getCountFeature()
+ " number tiles: "
+ imageLevelInfo.getCountTiles());
} else {
if (LOGGER.isLoggable(Level.FINE))
LOGGER.fine(
"Number of features: "
+ imageLevelInfo.getCountFeature()
+ " number tiles: "
+ imageLevelInfo.getCountTiles());
}
}
imageLevelInfo.setExtentMaxX(new Double(res.getDouble(config.getMaxXAttribute())));
if (res.wasNull()) {
imageLevelInfo.setExtentMaxX(null);
}
imageLevelInfo.setExtentMaxY(new Double(res.getDouble(config.getMaxYAttribute())));
if (res.wasNull()) {
imageLevelInfo.setExtentMaxY(null);
}
imageLevelInfo.setExtentMinX(new Double(res.getDouble(config.getMinXAttribute())));
if (res.wasNull()) {
imageLevelInfo.setExtentMinX(null);
}
imageLevelInfo.setExtentMinY(new Double(res.getDouble(config.getMinYAttribute())));
if (res.wasNull()) {
imageLevelInfo.setExtentMinY(null);
}
imageLevelInfo.setResX(new Double(res.getDouble(config.getResXAttribute())));
if (res.wasNull()) {
imageLevelInfo.setResX(null);
}
imageLevelInfo.setResY(new Double(res.getDouble(config.getResYAttribute())));
if (res.wasNull()) {
imageLevelInfo.setResY(null);
}
if (config.getVerifyCardinality().booleanValue()) {
if ((imageLevelInfo.getCountFeature().intValue() > 0)
&& (imageLevelInfo.getCountTiles().intValue() > 0)) {
levelInfos.add(imageLevelInfo);
}
} else {
levelInfos.add(imageLevelInfo);
}
imageLevelInfo.setSrsId(getSRSID(imageLevelInfo, con));
imageLevelInfo.setCrs(getCRS(imageLevelInfo, con));
}
} catch (SQLException e) {
throw (e);
} catch (IOException e1) {
throw (e1);
} finally {
if (res != null) {
res.close();
}
if (s != null) {
s.close();
}
}
}