private String toString(SeQueryInfo qInfo) {
StringBuffer sb = new StringBuffer("SeQueryInfo[\n\tcolumns=");
try {
SeSqlConstruct sql = qInfo.getConstruct();
String[] tables = sql.getTables();
String[] cols = qInfo.getColumns();
String by = null;
try {
by = qInfo.getByClause();
} catch (NullPointerException npe) {
// no-op
}
String where = sql.getWhere();
for (int i = 0; cols != null && i < cols.length; i++) {
sb.append(cols[i]);
if (i < cols.length - 1) sb.append(", ");
}
sb.append("\n\tTables=");
for (int i = 0; i < tables.length; i++) {
sb.append(tables[i]);
if (i < tables.length - 1) sb.append(", ");
}
sb.append("\n\tWhere=");
sb.append(where);
sb.append("\n\tOrderBy=");
sb.append(by);
} catch (SeException e) {
sb.append("Exception retrieving query info properties: " + e.getMessage());
}
sb.append("]");
return sb.toString();
}
/**
* Returns an SeQueryInfo that can be used to retrieve a set of SeRows from an ArcSDE layer or a
* layer with joins. The SeQueryInfo object lacks the set of column names to fetch. It is the
* responsibility of the calling code to call setColumns(String []) on the returned object to
* specify which properties to fetch.
*
* @param unqualifiedPropertyNames non null, possibly empty, list of property names to fetch
* @return
* @throws IOException
*/
public SeQueryInfo getQueryInfo(final String[] unqualifiedPropertyNames) throws IOException {
assert unqualifiedPropertyNames != null;
String[] tables;
String byClause = null;
final SeSqlConstruct plainSqlConstruct = getSeSqlConstruct();
String where = plainSqlConstruct.getWhere();
try {
if (definitionQuery == null) {
tables = new String[] {this.sdeTable.getQualifiedName()};
} else {
tables = definitionQuery.getConstruct().getTables();
String joinWhere = definitionQuery.getConstruct().getWhere();
if (where == null) {
where = joinWhere;
} else {
where = joinWhere == null ? where : (joinWhere + " AND " + where);
}
try {
byClause = definitionQuery.getByClause();
} catch (NullPointerException e) {
// no-op
}
}
final SeQueryInfo qInfo = new SeQueryInfo();
final SeSqlConstruct sqlConstruct = new SeSqlConstruct();
sqlConstruct.setTables(tables);
if (where != null && where.length() > 0) {
sqlConstruct.setWhere(where);
}
final int queriedAttCount = unqualifiedPropertyNames.length;
if (queriedAttCount > 0) {
String[] sdeAttNames = new String[queriedAttCount];
FilterToSQLSDE sqlEncoder = getSqlEncoder();
for (int i = 0; i < queriedAttCount; i++) {
String attName = unqualifiedPropertyNames[i];
String coldef = sqlEncoder.getColumnDefinition(attName);
sdeAttNames[i] = coldef;
}
qInfo.setColumns(sdeAttNames);
}
qInfo.setConstruct(sqlConstruct);
if (byClause != null) {
qInfo.setByClause(byClause);
}
return qInfo;
} catch (SeException e) {
throw new ArcSdeException(e);
}
}
/**
* Returns the envelope for all features within the layer that pass any SQL construct, state, or
* spatial constraints for the stream.
*/
public Envelope calculateQueryExtent() throws IOException {
LOGGER.fine("Building a new SeQuery to consult it's resulting envelope");
final SeExtent extent;
try {
extent =
session.issue(
new Command<SeExtent>() {
@Override
public SeExtent execute(ISession session, SeConnection connection)
throws SeException, IOException {
final String[] spatialCol = {schema.getGeometryDescriptor().getLocalName()};
// fullConstruct may hold information about multiple tables in case of an
// in-process view
final SeSqlConstruct fullConstruct =
filters.getQueryInfo(spatialCol).getConstruct();
String whereClause = fullConstruct.getWhere();
if (whereClause == null) {
/*
* we really need a where clause or will get a famous -51 DATABASE LEVEL
* ERROR with no other explanation on some oracle databases
*/
whereClause = "1 = 1";
}
final SeFilter[] spatialConstraints = filters.getSpatialFilters();
SeExtent extent;
final SeQuery extentQuery = new SeQuery(connection);
try {
versioningHandler.setUpStream(session, extentQuery);
if (spatialConstraints.length > 0) {
extentQuery.setSpatialConstraints(
SeQuery.SE_OPTIMIZE, false, spatialConstraints);
}
SeSqlConstruct sqlCons = new SeSqlConstruct();
sqlCons.setTables(fullConstruct.getTables());
sqlCons.setWhere(whereClause);
final SeQueryInfo seQueryInfo = new SeQueryInfo();
seQueryInfo.setColumns(spatialCol);
seQueryInfo.setConstruct(sqlCons);
extent = extentQuery.calculateLayerExtent(seQueryInfo);
} finally {
extentQuery.close();
}
return extent;
}
});
} catch (IOException ex) {
SeSqlConstruct sqlCons = this.filters.getSeSqlConstruct();
String sql = (sqlCons == null) ? null : sqlCons.getWhere();
String tables = (sqlCons == null) ? null : Arrays.asList(sqlCons.getTables()).toString();
if (ex.getCause() instanceof SeException) {
SeException sdeEx = (SeException) ex.getCause();
if (sdeEx.getSeError().getSdeError() == -288) {
// gah, the dreaded 'LOGFILE SYSTEM TABLES DO NOT EXIST'
// error.
// this error is worthless. Make it quiet, at least.
LOGGER.severe(
"ArcSDE is complaining that your 'LOGFILE SYSTEM "
+ "TABLES DO NOT EXIST'. This is an ignorable error.");
}
}
LOGGER.log(
Level.SEVERE,
"***********************\ntables: "
+ tables
+ "\nfilter: "
+ this.filters.getGeometryFilter()
+ "\nSQL: "
+ sql,
ex);
throw ex;
}
Envelope envelope =
new Envelope(extent.getMinX(), extent.getMaxX(), extent.getMinY(), extent.getMaxY());
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("got extent: " + extent + ", built envelope: " + envelope);
}
return envelope;
}