/*
* 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.Locale;
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 database metadata, to connector documents.
*
* @author Horia Chiorean (hchiorea@redhat.com)
*/
public final class DatabaseRetriever extends AbstractMetadataRetriever {
protected static final String ID = "databaseRoot";
private static final Pattern ROOT_DB_PATTERN = Pattern.compile("/[^/]*");
protected DatabaseRetriever( JdbcMetadataConnector connector ) {
super(connector);
}
@Override
protected Document getDocumentById( String id,
DocumentWriter writer,
Connection connection ) {
MetadataCollector metadataCollector = connector.getMetadataCollector();
DBMetadata dbMetadata = metadataCollector.getDatabaseMetadata(connection);
writer.setPrimaryType(JcrNtLexicon.UNSTRUCTURED);
writer.addMixinType(JdbcMetadataLexicon.DATABASE_ROOT);
writer.addProperty(JdbcMetadataLexicon.DATABASE_PRODUCT_NAME, dbMetadata.getDatabaseProductName());
writer.addProperty(JdbcMetadataLexicon.DATABASE_PRODUCT_VERSION, dbMetadata.getDatabaseProductVersion());
writer.addProperty(JdbcMetadataLexicon.DATABASE_MAJOR_VERSION, dbMetadata.getDatabaseMajorVersion());
writer.addProperty(JdbcMetadataLexicon.DATABASE_MINOR_VERSION, dbMetadata.getDatabaseMinorVersion());
List<String> catalogs = removeEmptyOrNullElements(metadataCollector.getCatalogNames(connection));
if (catalogs.isEmpty()) {
catalogs.add(connector.getDefaultCatalogName());
}
for (String catalogName : catalogs) {
writer.addChild(CatalogRetriever.documentId(id, catalogName), catalogName);
}
return writer.document();
}
@Override
protected String idFrom( String path ) {
if (ROOT_DB_PATTERN.matcher(path).matches()) {
return ID;
}
return null;
}
@Override
protected boolean canHandle( String id ) {
return id.toLowerCase(Locale.ROOT).equalsIgnoreCase(ID);
}
}