code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/rest/MultipleDeleteCommand.java

   1 /*
   2  *  Copyright (c) 2011 Greek Research and Technology Network
   3  */
   4 package gr.grnet.pithos.web.client.rest;
   5
   6 import gr.grnet.pithos.web.client.GSS;
   7 import gr.grnet.pithos.web.client.InsufficientPermissionsException;
   8
   9 import java.util.ArrayList;
  10 import java.util.HashMap;
  11 import java.util.List;
  12 import java.util.Map;
  13
  14 import com.google.gwt.core.client.GWT;
  15 import com.google.gwt.http.client.Request;
  16 import com.google.gwt.http.client.RequestBuilder;
  17 import com.google.gwt.http.client.RequestCallback;
  18 import com.google.gwt.http.client.Response;
  19
  20 public abstract class MultipleDeleteCommand extends RestCommand {
  21
  22
  23         Map<String, Throwable> errors = new HashMap<String, Throwable>();
  24
  25         List<String> successPaths = new ArrayList<String>();
  26
  27         String[] paths;
  28
  29         public MultipleDeleteCommand(String[] pathToDelete){
  30                 this(pathToDelete, true);
  31         }
  32
  33         public MultipleDeleteCommand(String[] pathToDelete, boolean showLoading){
  34                 setShowLoadingIndicator(showLoading);
  35                 if(isShowLoadingIndicator())
  36                         GSS.get().showLoadingIndicator("Deleting "+pathToDelete.length+" items",null);
  37                 paths = pathToDelete;
  38                 for (final String pathg : pathToDelete) {
  39                         GWT.log("[DEL]"+pathg, null);
  40                         RequestBuilder builder = new RequestBuilder(RequestBuilder.DELETE, pathg);
  41
  42                         try {
  43                                 handleHeaders(builder, pathg);
  44                                 builder.sendRequest("", new RequestCallback() {
  45
  46                                         @Override
  47                                         public void onError(Request arg0, Throwable arg1) {
  48                                                 errors.put(pathg, arg1);
  49                                         }
  50
  51                                         @Override
  52                                         public void onResponseReceived(Request arg0, Response arg1) {
  53                                                 if (arg1.getStatusCode() == 204)
  54                                                         successPaths.add(pathg);
  55                                                 else if(arg1.getStatusCode() == 403)
  56                                                         sessionExpired();
  57                                                 else if (arg1.getStatusCode() == 405)
  58                                                         errors.put(pathg, new InsufficientPermissionsException("You don't have permissions to delete this resource"));
  59                                                 else
  60                                                         errors.put(pathg, new RestException(pathg, arg1.getStatusCode(), arg1.getStatusText(), arg1.getText()));
  61                                         }
  62
  63                                 });
  64                         } catch (Exception ex) {
  65                                 errors.put(pathg, ex);
  66                         }
  67                 }
  68         }
  69
  70         public boolean isComplete() {
  71                 return errors.size() + successPaths.size() == paths.length;
  72         }
  73
  74         @Override
  75         public boolean execute() {
  76                 boolean com = isComplete();
  77                 if (com) {
  78                         if(hasErrors())
  79                                 for(String p : errors.keySet())
  80                                         onError(p, errors.get(p));
  81                         onComplete();
  82                         if(isShowLoadingIndicator())
  83                                 GSS.get().hideLoadingIndicator();
  84                         return false;
  85                 }
  86                 return true;
  87         }
  88
  89         public boolean hasErrors(){
  90                 return errors.size() >0;
  91         }
  92
  93
  94         /**
  95          * Retrieve the errors.
  96          *
  97          * @return the errors
  98          */
  99         public Map<String, Throwable> getErrors() {
 100                 return errors;
 101         }
 102
 103         public void debug(){
 104                 GWT.log("-ERRORS-->"+getErrors().size(), null);
 105                 for(String p : getErrors().keySet())
 106                         GWT.log("error:"+p, getErrors().get(p));
 107         }
 108
 109         public abstract void onError(String path, Throwable throwable);
 110
 111 }