/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.resource.adapter.google;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;
import org.teiid.logging.LogConstants;
import org.teiid.logging.LogManager;
import org.teiid.resource.adapter.google.auth.AuthHeaderFactory;
import org.teiid.resource.adapter.google.auth.OAuth2HeaderFactory;
import org.teiid.resource.adapter.google.dataprotocol.GoogleDataProtocolAPI;
import org.teiid.resource.adapter.google.gdata.GDataClientLoginAPI;
import org.teiid.resource.adapter.google.gdata.SpreadsheetMetadataExtractor;
import org.teiid.resource.spi.BasicConnection;
import org.teiid.translator.google.api.GoogleSpreadsheetConnection;
import org.teiid.translator.google.api.UpdateSet;
import org.teiid.translator.google.api.metadata.SpreadsheetInfo;
import org.teiid.translator.google.api.result.RowsResult;
import org.teiid.translator.google.api.result.UpdateResult;
/**
* Represents a connection to an Google spreadsheet data source.
*/
public class SpreadsheetConnectionImpl extends BasicConnection implements GoogleSpreadsheetConnection {
private SpreadsheetManagedConnectionFactory config;
private GDataClientLoginAPI gdata = null;
private GoogleDataProtocolAPI dataProtocol = null;
private AtomicReference<SpreadsheetInfo> spreadsheetInfo;
public SpreadsheetConnectionImpl(SpreadsheetManagedConnectionFactory config, AtomicReference<SpreadsheetInfo> spreadsheetInfo) {
this.config = config;
this.spreadsheetInfo = spreadsheetInfo;
AuthHeaderFactory authHeaderFactory = new OAuth2HeaderFactory(config.getRefreshToken().trim());
gdata=new GDataClientLoginAPI();
dataProtocol = new GoogleDataProtocolAPI();
authHeaderFactory.login();
dataProtocol.setHeaderFactory(authHeaderFactory);
gdata.setHeaderFactory(authHeaderFactory);
LogManager.logDetail(LogConstants.CTX_CONNECTOR,SpreadsheetManagedConnectionFactory.UTIL.getString("init") ); //$NON-NLS-1$
}
/**
* Closes Google spreadsheet context, effectively closing the connection to Google spreadsheet.
* (non-Javadoc)
*/
@Override
public void close() {
LogManager.logDetail(LogConstants.CTX_CONNECTOR,
SpreadsheetManagedConnectionFactory.UTIL.
getString("closing")); //$NON-NLS-1$
}
public boolean isAlive() {
LogManager.logTrace(LogConstants.CTX_CONNECTOR, SpreadsheetManagedConnectionFactory.UTIL.
getString("alive")); //$NON-NLS-1$
return true;
}
@Override
public RowsResult executeQuery(
String worksheetName, String query,
Integer offset, Integer limit, int batchSize) {
return dataProtocol.executeQuery(getSpreadsheetInfo(), worksheetName, query, Math.min(batchSize, config.getBatchSize()),
offset, limit);
}
@Override
public SpreadsheetInfo getSpreadsheetInfo() {
SpreadsheetInfo info = spreadsheetInfo.get();
if (info == null) {
synchronized (spreadsheetInfo) {
info = spreadsheetInfo.get();
if (info == null) {
SpreadsheetMetadataExtractor metadataExtractor = new SpreadsheetMetadataExtractor();
metadataExtractor.setGdataAPI(gdata);
metadataExtractor.setVisualizationAPI(dataProtocol);
info = metadataExtractor.extractMetadata(config.getSpreadsheetName(), config.getKey());
spreadsheetInfo.set(info);
}
}
}
return info;
}
@Override
public UpdateResult executeListFeedUpdate(String worksheetID, String criteria, List<UpdateSet> set) {
return gdata.listFeedUpdate(getSpreadsheetInfo().getSpreadsheetKey(), worksheetID, criteria, set);
}
@Override
public UpdateResult deleteRows(String worksheetID, String criteria) {
return gdata.listFeedDelete(getSpreadsheetInfo().getSpreadsheetKey(), worksheetID, criteria);
}
@Override
public UpdateResult executeRowInsert(String worksheetID, Map<String,String> pair){
return gdata.listFeedInsert(getSpreadsheetInfo().getSpreadsheetKey(), worksheetID, pair);
}
}