package org.jbpm.designer.web.server;
import java.io.IOException;
import java.io.PrintWriter;
import javax.inject.Inject;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jbpm.designer.util.Utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.jbpm.designer.repository.Asset;
import org.jbpm.designer.repository.Repository;
import org.jbpm.designer.web.profile.IDiagramProfile;
import org.jbpm.designer.web.profile.IDiagramProfileService;
import org.jbpm.designer.web.profile.impl.RepositoryInfo;
import org.json.JSONObject;
/**
* Sevlet for color themes.
*
* @author Tihomir Surdilovic
*/
public class ThemeServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private static final String ACTION_GETTHEMENAMES = "getThemeNames";
private static final String ACTION_GETTHEMEJSON = "getThemeJSON";
private static final String THEME_NAME = "themes";
public static final String THEME_EXT = ".json";
private static final String DEFAULT_THEME = "jBPM";
private static final Logger _logger = LoggerFactory.getLogger(ThemeServlet.class);
private ServletConfig config;
private String themeInfo;
@Inject
private IDiagramProfileService _profileService = null;
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
this.config = config;
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
String profileName = req.getParameter("profile");
String action = req.getParameter("action");
String uuid = Utils.getUUID(req);
IDiagramProfile profile = _profileService.findProfile(req, profileName);
if(action != null && action.equals(ACTION_GETTHEMENAMES)) {
String themeStr = getThemeNames(profile, getServletContext(), uuid);
PrintWriter pw = resp.getWriter();
resp.setContentType("text/plain");
resp.setCharacterEncoding("UTF-8");
pw.write(themeStr);
} else if(action != null && action.equals(ACTION_GETTHEMEJSON)) {
String themeJSON = getThemeJson(profile, getServletContext(), uuid);
PrintWriter pw = resp.getWriter();
resp.setContentType("text/plain");
resp.setCharacterEncoding("UTF-8");
pw.write(themeJSON);
}
}
private String getThemeJson(IDiagramProfile profile, ServletContext servletContext, String uuid) {
Repository repository = profile.getRepository();
String retStr = "";
try {
Asset<String> themeAsset = repository.loadAssetFromPath(profile.getRepositoryGlobalDir( uuid ) + "/" + THEME_NAME+THEME_EXT);
retStr = themeAsset.getAssetContent();
} catch (Exception e) {
_logger.error("Error retriving color theme info: " + e.getMessage());
}
return retStr;
}
private String getThemeNames(IDiagramProfile profile, ServletContext servletContext, String uuid) {
Repository repository = profile.getRepository();
String themesStr = "";
try {
Asset<String> themeAsset = repository.loadAssetFromPath(profile.getRepositoryGlobalDir( uuid ) + "/" + THEME_NAME+THEME_EXT);
JSONObject themesObject = new JSONObject(themeAsset.getAssetContent());
JSONObject themes = (JSONObject) themesObject.get("themes");
for (int i = 0; i < themes.names().length(); i++) {
themesStr += themes.names().getString(i) + ",";
}
if(themesStr.endsWith(",")) {
themesStr = themesStr.substring(0, themesStr.length() - 1);
}
} catch (Exception e) {
themesStr = DEFAULT_THEME;
}
return themesStr;
}
}