private int performDeleteBlob(IdFilter filter, Lock lock) throws FeatureStoreException {
int deleted = 0;
PreparedStatement stmt = null;
try {
stmt =
conn.prepareStatement(
"DELETE FROM "
+ blobMapping.getTable()
+ " WHERE "
+ blobMapping.getGMLIdColumn()
+ "=?");
for (ResourceId id : filter.getSelectedIds()) {
stmt.setString(1, id.getRid());
stmt.addBatch();
if (fs.getCache() != null) {
fs.getCache().remove(id.getRid());
}
}
int[] deletes = stmt.executeBatch();
for (int noDeleted : deletes) {
deleted += noDeleted;
}
} catch (SQLException e) {
LOG.debug(e.getMessage(), e);
throw new FeatureStoreException(e.getMessage(), e);
} finally {
JDBCUtils.close(stmt);
}
LOG.debug("Deleted " + deleted + " features.");
return deleted;
}
/**
* Inserts the given feature into BLOB table and returns the generated primary key.
*
* @param stmt
* @param feature
* @return primary key of the feature
* @throws SQLException
* @throws FeatureStoreException
*/
private int insertFeatureBlob(PreparedStatement stmt, Feature feature)
throws SQLException, FeatureStoreException {
LOG.debug("Inserting feature with id '" + feature.getId() + "' (BLOB)");
if (fs.getSchema().getFeatureType(feature.getName()) == null) {
throw new FeatureStoreException(
"Cannot insert feature '"
+ feature.getName()
+ "': feature type is not served by this feature store.");
}
ICRS crs = blobMapping.getCRS();
stmt.setString(1, feature.getId());
stmt.setShort(2, fs.getFtId(feature.getName()));
byte[] bytes = encodeFeatureBlob(feature, crs);
stmt.setBytes(3, bytes);
LOG.debug("Feature blob size: " + bytes.length);
Geometry bboxGeom = getFeatureEnvelopeAsGeometry(feature);
blobGeomConverter.setParticle(stmt, bboxGeom, 4);
stmt.execute();
int internalId = -1;
// ResultSet rs = null;
// try {
// // TODO only supported for PostgreSQL >= 8.2
// rs = stmt.getGeneratedKeys();
// rs.next();
// internalId = rs.getInt( 1 );
// } finally {
// if ( rs != null ) {
// rs.close();
// }
// }
return internalId;
}
/**
* Creates a new {@link SQLFeatureStoreTransaction} instance.
*
* @param store corresponding feature store instance, must not be <code>null</code>
* @param conn JDBC connection associated with the transaction, must not be <code>null</code> and
* have <code>autocommit</code> set to <code>false</code>
* @param schema application schema with mapping information, must not be <code>null</code>
* @param inspectors feature inspectors, must not be <code>null</code>
*/
SQLFeatureStoreTransaction(
SQLFeatureStore store,
Connection conn,
MappedAppSchema schema,
List<FeatureInspector> inspectors) {
this.fs = store;
this.conn = conn;
this.schema = schema;
this.inspectors = inspectors;
blobMapping = schema.getBlobMapping();
if (blobMapping != null) {
DBField bboxColumn = new DBField(blobMapping.getBBoxColumn());
GeometryStorageParams geometryParams =
new GeometryStorageParams(blobMapping.getCRS(), null, DIM_2);
GeometryMapping blobGeomMapping =
new GeometryMapping(null, true, bboxColumn, GeometryType.GEOMETRY, geometryParams, null);
blobGeomConverter = fs.getGeometryConverter(blobGeomMapping);
}
this.bboxTracker = new BBoxTracker();
}
private void updateFeatureBlob(final PreparedStatement stmt, final Feature feature)
throws SQLException {
LOG.debug("Updating feature with id '" + feature.getId() + "' (BLOB)");
final ICRS crs = blobMapping.getCRS();
final byte[] bytes = encodeFeatureBlob(feature, crs);
stmt.setBytes(1, bytes);
LOG.debug("Feature blob size: " + bytes.length);
final Geometry bboxGeom = getFeatureEnvelopeAsGeometry(feature);
blobGeomConverter.setParticle(stmt, bboxGeom, 2);
stmt.setString(3, feature.getId());
stmt.execute();
}
private List<String> performUpdateBlob(
final QName ftName,
final List<ParsedPropertyReplacement> replacementProps,
final Filter filter,
final Lock lock)
throws FeatureStoreException {
final List<String> updatedFids = new ArrayList<String>();
final Query query = new Query(ftName, filter, -1, -1, -1);
final StringBuilder sql = new StringBuilder("UPDATE ");
sql.append(blobMapping.getTable());
sql.append(" SET ");
sql.append(blobMapping.getDataColumn());
sql.append("=?,");
sql.append(blobMapping.getBBoxColumn());
sql.append("=? WHERE ");
sql.append(blobMapping.getGMLIdColumn());
sql.append("=?");
PreparedStatement blobUpdateStmt = null;
FeatureInputStream features = null;
try {
LOG.debug("Preparing update stmt: {}", sql);
blobUpdateStmt = conn.prepareStatement(sql.toString());
features = fs.query(query);
for (final Feature feature : features) {
new FeatureUpdater().update(feature, replacementProps);
updateFeatureBlob(blobUpdateStmt, feature);
updatedFids.add(feature.getId());
}
} catch (final Exception e) {
final String msg = "Error while performing Update (BLOB): " + e.getMessage();
LOG.trace(msg, e);
throw new FeatureStoreException(msg);
} finally {
if (features != null) {
features.close();
}
}
return updatedFids;
}
@Override
public List<String> performInsert(FeatureCollection fc, IDGenMode mode)
throws FeatureStoreException {
LOG.debug("performInsert()");
Set<Geometry> geometries = new LinkedHashSet<Geometry>();
Set<Feature> features = new LinkedHashSet<Feature>();
Set<String> fids = new LinkedHashSet<String>();
Set<String> gids = new LinkedHashSet<String>();
for (Feature member : fc) {
findFeaturesAndGeometries(member, geometries, features, fids, gids);
}
LOG.debug(features.size() + " features / " + geometries.size() + " geometries");
for (FeatureInspector inspector : inspectors) {
for (Feature f : features) {
// TODO cope with inspectors that return a different instance
inspector.inspect(f);
}
}
long begin = System.currentTimeMillis();
String fid = null;
try {
PreparedStatement blobInsertStmt = null;
if (blobMapping != null) {
switch (mode) {
case GENERATE_NEW:
{
// TODO don't change incoming features / geometries
for (Feature feature : features) {
String newFid = "FEATURE_" + generateNewId();
String oldFid = feature.getId();
if (oldFid != null) {
fids.remove(oldFid);
}
fids.add(newFid);
feature.setId(newFid);
}
for (Geometry geometry : geometries) {
String newGid = "GEOMETRY_" + generateNewId();
String oldGid = geometry.getId();
if (oldGid != null) {
gids.remove(oldGid);
}
gids.add(newGid);
geometry.setId(newGid);
}
break;
}
case REPLACE_DUPLICATE:
{
throw new FeatureStoreException("REPLACE_DUPLICATE is not available yet.");
}
case USE_EXISTING:
{
// TODO don't change incoming features / geometries
for (Feature feature : features) {
if (feature.getId() == null) {
String newFid = "FEATURE_" + generateNewId();
feature.setId(newFid);
fids.add(newFid);
}
}
for (Geometry geometry : geometries) {
if (geometry.getId() == null) {
String newGid = "GEOMETRY_" + generateNewId();
geometry.setId(newGid);
gids.add(newGid);
}
}
break;
}
}
StringBuilder sql = new StringBuilder("INSERT INTO ");
sql.append(blobMapping.getTable());
sql.append(" (");
sql.append(blobMapping.getGMLIdColumn());
sql.append(",");
sql.append(blobMapping.getTypeColumn());
sql.append(",");
sql.append(blobMapping.getDataColumn());
sql.append(",");
sql.append(blobMapping.getBBoxColumn());
sql.append(") VALUES(?,?,?,");
sql.append(blobGeomConverter.getSetSnippet(null));
sql.append(")");
LOG.debug("Inserting: {}", sql);
blobInsertStmt = conn.prepareStatement(sql.toString());
for (Feature feature : features) {
fid = feature.getId();
if (blobInsertStmt != null) {
insertFeatureBlob(blobInsertStmt, feature);
}
FeatureTypeMapping ftMapping = fs.getMapping(feature.getName());
if (ftMapping != null) {
throw new UnsupportedOperationException();
}
ICRS storageSrs = blobMapping.getCRS();
bboxTracker.insert(feature, storageSrs);
}
if (blobInsertStmt != null) {
blobInsertStmt.close();
}
} else {
// pure relational mode
List<FeatureRow> idAssignments = new ArrayList<FeatureRow>();
InsertRowManager insertManager = new InsertRowManager(fs, conn, mode);
for (Feature feature : features) {
FeatureTypeMapping ftMapping = fs.getMapping(feature.getName());
if (ftMapping == null) {
throw new FeatureStoreException(
"Cannot insert feature of type '"
+ feature.getName()
+ "'. No mapping defined and BLOB mode is off.");
}
idAssignments.add(insertManager.insertFeature(feature, ftMapping));
Pair<TableName, GeometryMapping> mapping = ftMapping.getDefaultGeometryMapping();
if (mapping != null) {
ICRS storageSrs = mapping.second.getCRS();
bboxTracker.insert(feature, storageSrs);
}
}
if (insertManager.getDelayedRows() != 0) {
String msg =
"After insertion, "
+ insertManager.getDelayedRows()
+ " delayed rows left uninserted. Probably a cyclic key constraint blocks insertion.";
throw new RuntimeException(msg);
}
// TODO why is this necessary?
fids.clear();
for (FeatureRow assignment : idAssignments) {
fids.add(assignment.getNewId());
}
}
} catch (Throwable t) {
String msg = "Error inserting feature: " + t.getMessage();
LOG.error(msg);
LOG.trace("Stack trace:", t);
throw new FeatureStoreException(msg, t);
}
long elapsed = System.currentTimeMillis() - begin;
LOG.debug("Insertion of " + features.size() + " features: " + elapsed + " [ms]");
return new ArrayList<String>(fids);
}