/*
* ModeShape (http://www.modeshape.org)
*
* 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.
*/
package org.modeshape.connector.meta.jdbc;
import java.sql.Connection;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.modeshape.schematic.document.Document;
import org.modeshape.jcr.JcrNtLexicon;
import org.modeshape.jcr.spi.federation.DocumentWriter;
/**
* Class which converts procedure metadata to connector documents.
*
* @author Horia Chiorean (hchiorea@redhat.com)
*/
public class ProcedureRetriever extends AbstractMetadataRetriever {
private static final Pattern PROCEDURE_PATH_PATTERN = Pattern.compile("/([^/]+)/([^/]+)/([^/]+)/procedures/([^/]+)");
private static final String PROCEDURE_PREFIX = "proc";
private static final Pattern PROCEDURE_ID_PATTERN = Pattern.compile("([^@]+)@([^@]+)@([^@]+)@" + PROCEDURE_PREFIX + "@([^@]+)");
protected ProcedureRetriever( JdbcMetadataConnector connector ) {
super(connector);
}
@Override
protected Document getDocumentById( String id,
DocumentWriter writer,
Connection connection ) {
String procedureId = procedureIdFrom(id);
String catalogId = catalogIdFrom(id);
String catalog = catalogId;
if (catalog.equalsIgnoreCase(connector.getDefaultCatalogName())) {
catalog = null;
}
String schemaId = schemaIdFrom(id);
String schema = schemaId;
if (schema.equalsIgnoreCase(connector.getDefaultSchemaName())) {
schema = null;
}
writer.setPrimaryType(JcrNtLexicon.UNSTRUCTURED);
writer.addMixinType(JdbcMetadataLexicon.PROCEDURE);
writer.setParent(SchemaRetriever.documentId(DatabaseRetriever.ID, catalogId, schemaId, false, true));
List<ProcedureMetadata> metadatas = connector.getMetadataCollector().getProcedures(connection, catalog, schema,
procedureId);
if (!metadatas.isEmpty()) {
ProcedureMetadata metadata = metadatas.get(0);
writer.addProperty(JdbcMetadataLexicon.DESCRIPTION, metadata.getDescription());
writer.addProperty(JdbcMetadataLexicon.PROCEDURE_RETURN_TYPE, metadata.getType());
}
return null;
}
private String procedureIdFrom( String id ) {
Matcher matcher = PROCEDURE_ID_PATTERN.matcher(id);
return matcher.matches() ? matcher.group(4) : null;
}
private String schemaIdFrom( String id ) {
Matcher matcher = PROCEDURE_ID_PATTERN.matcher(id);
return matcher.matches() ? matcher.group(3) : null;
}
private String catalogIdFrom( String id ) {
Matcher matcher = PROCEDURE_ID_PATTERN.matcher(id);
return matcher.matches() ? matcher.group(2) : null;
}
@Override
protected String idFrom( String path ) {
Matcher matcher = PROCEDURE_PATH_PATTERN.matcher(path);
if (matcher.matches()) {
return documentId(matcher.group(1), matcher.group(2), matcher.group(3), matcher.group(4));
}
return null;
}
@Override
protected boolean canHandle( String id ) {
return PROCEDURE_ID_PATTERN.matcher(id).matches();
}
static String documentId( String databaseId,
String catalogId,
String schemaId,
String procedureId ) {
return generateId(databaseId, catalogId, schemaId, PROCEDURE_PREFIX, procedureId);
}
}