Java tutorial
package atc.otn.ckan.portlets; import java.io.File; import java.io.IOException; import java.net.URLDecoder; import javax.portlet.ActionRequest; import javax.portlet.ActionResponse; import javax.portlet.PortletException; import javax.portlet.PortletRequest; import javax.portlet.PortletURL; import javax.portlet.ProcessAction; import javax.portlet.RenderRequest; import javax.portlet.RenderResponse; import javax.servlet.http.HttpServletRequest; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.json.JSONArray; import org.json.JSONObject; import atc.otn.ckan.client.CKANClient; import com.liferay.portal.kernel.exception.PortalException; import com.liferay.portal.kernel.exception.SystemException; import com.liferay.portal.kernel.repository.model.Folder; import com.liferay.portal.kernel.upload.UploadPortletRequest; import com.liferay.portal.kernel.util.ParamUtil; import com.liferay.portal.kernel.util.WebKeys; import com.liferay.portal.model.User; import com.liferay.portal.security.permission.PermissionChecker; import com.liferay.portal.security.permission.PermissionThreadLocal; import com.liferay.portal.theme.ThemeDisplay; import com.liferay.util.bridges.mvc.MVCPortlet; import com.liferay.portal.util.PortalUtil; import com.liferay.portlet.PortletURLFactoryUtil; /** * Portlet implementation class DatasetDetails */ public class OrganizationDatasetDetails extends MVCPortlet { private static final Log logger = LogFactory.getLog(DatasetDetails.class); public void doView(RenderRequest renderRequest, RenderResponse renderResponse) { //********************** Variables ********************** CKANClient client; HttpServletRequest httpReq = PortalUtil .getOriginalServletRequest(PortalUtil.getHttpServletRequest(renderRequest)); String datasetId = httpReq.getParameter("datasetId"); //ThemeDisplay themeDisplay = (ThemeDisplay) renderRequest.getAttribute(WebKeys.THEME_DISPLAY); //User user = themeDisplay.getUser(); //********************** Action ********************** try { //init CKAN client client = new CKANClient(); System.out.println(datasetId); if (datasetId != null) { JSONObject datasetDetails = new JSONObject(); datasetDetails = client.getDataset(datasetId); String mode = httpReq.getParameter("mode"); if (mode != null && mode.equals("edit")) { /*String dataCreator = datasetDetails.getString("creator_user_id"); ThemeDisplay themeDisplay = (ThemeDisplay) renderRequest.getAttribute(WebKeys.THEME_DISPLAY); User user = themeDisplay.getUser(); String currentUserID = "" + user.getUserId(); PermissionChecker permissionChecker = PermissionThreadLocal.getPermissionChecker(); if(currentUserID.equals(dataCreator) || permissionChecker.isOmniadmin()) {*/ renderRequest.setAttribute("mode", "edit"); JSONArray licenses = new JSONArray(); licenses = client.getLicenses(); //return list to jsp renderRequest.setAttribute("licenses", licenses); /* } else// user not owner of dataset { renderRequest.setAttribute("datasetDetails",null ); renderRequest.setAttribute("licenseString", ""); }*/ } //System.out.println(datasetDetails); renderRequest.setAttribute("datasetDetails", datasetDetails); } else { renderRequest.setAttribute("datasetDetails", null); renderRequest.setAttribute("licenseString", ""); } super.doView(renderRequest, renderResponse); } catch (Exception e) { e.printStackTrace(); } }//end doView() @ProcessAction(name = "editDocument") public void editDocument(ActionRequest actionRequest, ActionResponse actionResponse) throws IOException, PortletException, PortalException, SystemException { //********************** Variables ********************** ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest.getAttribute(WebKeys.THEME_DISPLAY); User user = themeDisplay.getUser(); HttpServletRequest httpReq = PortalUtil .getOriginalServletRequest(PortalUtil.getHttpServletRequest(actionRequest)); //String datasetId = ParamUtil.getString(actionRequest, "datasetId"); String mimeType; UploadPortletRequest uploadPortletRequest = PortalUtil.getUploadPortletRequest(actionRequest); CKANClient client; JSONObject datasetData = new JSONObject(), resource = new JSONObject(); JSONObject datasetDetails = new JSONObject(); JSONArray resources = new JSONArray(), tags = new JSONArray(); String[] tagsStr; //********************** Action ********************** try { actionRequest.setCharacterEncoding("UTF-8"); // logger.info("uploading document...."); //get the file uploaded tagsStr = ParamUtil.getString(uploadPortletRequest, "tags").split(","); logger.info("title given " + ParamUtil.getString(uploadPortletRequest, "dstitle")); datasetDetails = new JSONObject( URLDecoder.decode(ParamUtil.getString(uploadPortletRequest, "dataset"), "UTF-8")); logger.info("from dataset title " + datasetDetails.getString("title")); /* Give the resource the same name as the package */ //resource.put("format", ParamUtil.getString(actionRequest,"format")); //resources.put(resource); for (String tag : tagsStr) { if (!tag.isEmpty()) { tags.put(new JSONObject().put("name", tag)); } } //datasetData.put("id", "1c49fa2c-c61f-4a1b-aef6-a450935e7eb5"); datasetDetails.put("title", ParamUtil.getString(uploadPortletRequest, "dstitle")); datasetDetails.put("notes", ParamUtil.getString(uploadPortletRequest, "notes")); datasetDetails.put("url", ParamUtil.getString(uploadPortletRequest, "source")); datasetDetails.put("version", ParamUtil.getString(uploadPortletRequest, "version")); datasetDetails.put("author", ParamUtil.getString(uploadPortletRequest, "author")); datasetDetails.put("license_id", ParamUtil.getString(uploadPortletRequest, "license")); String datasetId = ParamUtil.getString(uploadPortletRequest, "id"); System.out.println("dataset id: " + datasetId); PortletURL actionUrl = PortletURLFactoryUtil.create(actionRequest, themeDisplay.getPortletDisplay().getId(), themeDisplay.getPlid(), PortletRequest.ACTION_PHASE); System.out.println("url: " + actionUrl); String redirectUrl = actionUrl.toString().replaceAll("&mode=edit", ""); //datasetData.put("resources", resources); if (tags.length() > 0) { datasetDetails.put("tags", tags); } //init CKAN client client = new CKANClient(); //create dataset client.editOrganizationDataset(user.getUserId(), datasetDetails); System.out.println("updated dataset"); actionResponse.sendRedirect(redirectUrl + "&datasetId=" + datasetId); //redirect //actionResponse.sendRedirect("web/guest/dataset-details"); } catch (Exception e) { e.printStackTrace(); } }//end editDocument() }