122 lines
3.6 KiB
Java
122 lines
3.6 KiB
Java
/**
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*
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*/
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package org.gcube.portlets.user.workspaceexplorerapp.client.download;
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import org.gcube.portlets.user.workspaceexplorerapp.client.NewBrowserWindow;
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import org.gcube.portlets.user.workspaceexplorerapp.client.WorkspaceExplorerAppConstants;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.http.client.Request;
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import com.google.gwt.http.client.RequestBuilder;
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import com.google.gwt.http.client.RequestCallback;
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import com.google.gwt.http.client.RequestException;
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import com.google.gwt.http.client.Response;
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import com.google.gwt.user.client.Window;
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import com.google.gwt.user.client.rpc.AsyncCallback;
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/**
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* The Class RequestBuilderWorkspaceValidateItem.
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*
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* @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
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* @Jun 24, 2013
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*/
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public class RequestBuilderWorkspaceValidateItem {
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private AsyncCallback<WindowOpenParameter> callback;
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private String parameters;
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/**
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* Instantiates a new request builder workspace validate item.
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*
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* @param method the method
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* @param servletName the name of the servlet that must be called
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* @param params param=value¶m1=value1&...
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* @param targetWindow the target of the window (e.g. "_blank")
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* @param callback the callback
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* @throws Exception the exception
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*/
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public RequestBuilderWorkspaceValidateItem(RequestBuilder.Method method, String servletName, final String params, final String targetWindow, final AsyncCallback<WindowOpenParameter> callback) throws Exception{
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this.callback = callback;
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final NewBrowserWindow newBrowserWindow = NewBrowserWindow.open("", targetWindow, "");
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this.parameters = params;
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if(servletName==null)
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return;
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servletName = servletName.isEmpty()?"/":servletName;
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if(!servletName.contains("/"))
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servletName+="/"+servletName;
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if(parameters==null)
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parameters = WorkspaceExplorerAppConstants.VALIDATEITEM+"=true";
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else
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parameters +="&"+WorkspaceExplorerAppConstants.VALIDATEITEM+"=true";
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String urlRequest = servletName+"?"+parameters;
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GWT.log("request builder for: "+urlRequest);
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RequestBuilder requestBuilder = new RequestBuilder(method, urlRequest);
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try {
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requestBuilder.sendRequest("", new RequestCallback() {
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@Override
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public void onResponseReceived(Request request, Response response) {
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int status = response.getStatusCode();
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if(!(status==200) && !(status==202)){ //NOT IS STATUS SC_ACCEPTED
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// if(status==401){ // SC_UNAUTHORIZED = 401;
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// GWT.log("Session expired");
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// AppControllerExplorer.getEventBus().fireEvent(new SessionExpiredEvent());
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// return;
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// }
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newBrowserWindow.close();
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handleError("Sorry, an error occurred on retriving the file. "+response.getText()); //ERROR STATUS
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}else { //OK STATUS
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if(callback!=null){
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//PASSING PARAMS WITHOUT VALIDATION=TRUE
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callback.onSuccess(new WindowOpenParameter(targetWindow, "", params, true, newBrowserWindow));
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}
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}
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}
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@Override
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public void onError(Request request, Throwable exception) {
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newBrowserWindow.close();
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// System.out.println("exception message is "+exception.getMessage());
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handleError(exception.getMessage());
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}
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});
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} catch (RequestException e) {
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newBrowserWindow.close();
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throw new Exception("Sorry, an error occurred while contacting server, try again");
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}
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}
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/**
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* Handle error.
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*
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* @param message the message
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*/
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public void handleError(String message){
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if(callback!=null)
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callback.onFailure(new Exception(message));
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else
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Window.alert("Error: "+message);
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}
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}
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