package org.gcube.portlets.user.td.gwtservice.server.opexecution;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.gcube.data.analysis.tabulardata.commons.webservice.types.operations.OperationDefinition;
import org.gcube.data.analysis.tabulardata.commons.webservice.types.operations.OperationExecution;
import org.gcube.data.analysis.tabulardata.service.TabularDataService;
import org.gcube.portlets.user.td.gwtservice.server.SessionUtil;
import org.gcube.portlets.user.td.gwtservice.server.trservice.OperationDefinitionMap;
import org.gcube.portlets.user.td.gwtservice.server.util.ServiceCredentials;
import org.gcube.portlets.user.td.gwtservice.shared.Constants;
import org.gcube.portlets.user.td.gwtservice.shared.exception.TDGWTServiceException;
import org.gcube.portlets.user.td.gwtservice.shared.json.JSONExportSession;
import org.gcube.portlets.user.td.widgetcommonevent.shared.operations.OperationsId;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Operation Execution for JSON Export
 * 
 * @author "Giancarlo Panichi" email: <a
 *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
 * 
 */
public class OpExecution4JSONExport extends OpExecutionBuilder {
	private static Logger logger = LoggerFactory
			.getLogger(OpExecution4JSONExport.class);

	private HttpServletRequest httpRequest;
	private ServiceCredentials serviceCredentials;
	private TabularDataService service;
	private JSONExportSession jsonExportSession;

	public OpExecution4JSONExport(HttpServletRequest httpRequest,
			ServiceCredentials serviceCredentials, TabularDataService service,
			JSONExportSession jsonExportSession) {
		this.service = service;
		this.jsonExportSession = jsonExportSession;
		this.httpRequest = httpRequest;
		this.serviceCredentials = serviceCredentials;
	}

	@Override
	public void buildOpEx() throws TDGWTServiceException {
		logger.debug(jsonExportSession.toString());

		SessionUtil.setJSONExportEnd(httpRequest, serviceCredentials, false);

		OperationDefinition operationDefinition;
		operationDefinition = OperationDefinitionMap.map(
				OperationsId.JSONExport.toString(), service);
		Map<String, Object> map = new HashMap<String, Object>();

		map.put(Constants.PARAMETER_RESOURCE_NAME,
				jsonExportSession.getFileName());

		map.put(Constants.PARAMETER_RESOURCE_DESCRIPTION,
				jsonExportSession.getFileDescription());

		map.put(Constants.PARAMETER_VIEW_COLUMNS,
				jsonExportSession.isExportViewColumns());
		map.put(Constants.PARAMETER_COLUMNS,
				jsonExportSession.getColumnsAsString());

		OperationExecution invocation = new OperationExecution(
				operationDefinition.getOperationId(), map);

		operationExecutionSpec.setOp(invocation);
	}

}