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package com.google.refine.commands.project;
import java.io.IOException;
import java.util.LinkedList;
import java.util.List;
import java.util.Properties;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.JSONArray;
import org.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.refine.ProjectManager;
import com.google.refine.commands.Command;
import com.google.refine.commands.HttpUtilities;
import com.google.refine.importing.ImportingJob;
import com.google.refine.importing.ImportingManager;
import com.google.refine.importing.ImportingUtilities;
import com.google.refine.importing.ImportingManager.Format;
import com.google.refine.util.JSONUtilities;
import com.google.refine.util.ParsingUtilities;
public class CreateProjectCommand extends Command {
final static Logger logger = LoggerFactory.getLogger("create-project_command");
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
ProjectManager.singleton.setBusy(true);
try {
Properties parameters = ParsingUtilities.parseUrlParameters(request);
ImportingJob job = ImportingManager.createJob();
JSONObject config = job.getOrCreateDefaultConfig();
ImportingUtilities.loadDataAndPrepareJob(
request, response, parameters, job, config);
String format = parameters.getProperty("format");
// If a format is specified, it might still be wrong, so we need
// to check if we have a parser for it. If not, null it out.
if (format != null && !format.isEmpty()) {
Format formatRecord = ImportingManager.formatToRecord.get(format);
if (formatRecord == null || formatRecord.parser == null) {
format = null;
}
}
// If we don't have a format specified, try to guess it.
if (format == null || format.isEmpty()) {
// Use legacy parameters to guess the format.
if ("false".equals(parameters.getProperty("split-into-columns"))) {
format = "text/line-based";
} else if (",".equals(parameters.getProperty("separator")) ||
"\\t".equals(parameters.getProperty("separator"))) {
format = "text/line-based/*sv";
} else {
JSONArray rankedFormats = JSONUtilities.getArray(config, "rankedFormats");
if (rankedFormats != null && rankedFormats.length() > 0) {
format = rankedFormats.getString(0);
}
}
if (format == null || format.isEmpty()) {
// If we have failed in guessing, default to something simple.
format = "text/line-based";
}
}
JSONObject optionObj = null;
String optionsString = request.getParameter("options");
if (optionsString != null && !optionsString.isEmpty()) {
optionObj = ParsingUtilities.evaluateJsonStringToObject(optionsString);
} else {
Format formatRecord = ImportingManager.formatToRecord.get(format);
optionObj = formatRecord.parser.createParserUIInitializationData(
job, job.getSelectedFileRecords(), format);
}
adjustLegacyOptions(format, parameters, optionObj);
String projectName = parameters.getProperty("project-name");
if (projectName != null && !projectName.isEmpty()) {
JSONUtilities.safePut(optionObj, "projectName", projectName);
}
List<Exception> exceptions = new LinkedList<Exception>();
long projectId = ImportingUtilities.createProject(job, format, optionObj, exceptions, true);
HttpUtilities.redirect(response, "/project?project=" + projectId);
} catch (Exception e) {
respondWithErrorPage(request, response, "Failed to import file", e);
} finally {
ProjectManager.singleton.setBusy(false);
}
}
static private void adjustLegacyOptions(String format, Properties parameters, JSONObject optionObj) {
if (",".equals(parameters.getProperty("separator"))) {
JSONUtilities.safePut(optionObj, "separator", ",");
} else if ("\\t".equals(parameters.getProperty("separator"))) {
JSONUtilities.safePut(optionObj, "separator", "\t");
}
adjustLegacyIntegerOption(format, parameters, optionObj, "ignore", "ignoreLines");
adjustLegacyIntegerOption(format, parameters, optionObj, "header-lines", "headerLines");
adjustLegacyIntegerOption(format, parameters, optionObj, "skip", "skipDataLines");
adjustLegacyIntegerOption(format, parameters, optionObj, "limit", "limit");
adjustLegacyBooleanOption(format, parameters, optionObj, "guess-value-type", "guessCellValueTypes", false);
adjustLegacyBooleanOption(format, parameters, optionObj, "ignore-quotes", "processQuotes", true);
}
static private void adjustLegacyIntegerOption(
String format, Properties parameters, JSONObject optionObj, String legacyName, String newName) {
String s = parameters.getProperty(legacyName);
if (s != null && !s.isEmpty()) {
try {
JSONUtilities.safePut(optionObj, newName, Integer.parseInt(s));
} catch (NumberFormatException e) {
// Ignore
}
}
}
static private void adjustLegacyBooleanOption(
String format,
Properties parameters,
JSONObject optionObj,
String legacyName,
String newName,
boolean invert) {
String s = parameters.getProperty(legacyName);
if (s != null && !s.isEmpty()) {
JSONUtilities.safePut(optionObj, newName, Boolean.parseBoolean(s));
}
}
}