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

   1 /*
   2  * Copyright 2009 Electronic Business Systems Ltd.
   3  *
   4  * This file is part of GSS.
   5  *
   6  * GSS is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GSS is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GSS.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 package gr.ebs.gss.client.rest;
  20
  21 import gr.ebs.gss.client.GSS;
  22 import gr.ebs.gss.client.exceptions.InsufficientPermissionsException;
  23
  24 import java.util.ArrayList;
  25 import java.util.HashMap;
  26 import java.util.List;
  27 import java.util.Map;
  28
  29 import com.google.gwt.core.client.GWT;
  30 import com.google.gwt.http.client.Request;
  31 import com.google.gwt.http.client.RequestCallback;
  32 import com.google.gwt.http.client.Response;
  33
  34 /**
  35  * @author kman
  36  */
  37 public abstract class MultipleDeleteCommand extends RestCommand {
  38
  39
  40         Map<String, Throwable> errors = new HashMap<String, Throwable>();
  41
  42         List<String> successPaths = new ArrayList<String>();
  43
  44         String[] paths;
  45
  46         public MultipleDeleteCommand(String[] pathToDelete){
  47                 this(pathToDelete, true);
  48         }
  49
  50         public MultipleDeleteCommand(String[] pathToDelete, boolean showLoading){
  51                 setShowLoadingIndicator(showLoading);
  52                 if(isShowLoadingIndicator())
  53                         GSS.get().showLoadingIndicator();
  54                 paths = pathToDelete;
  55                 for (final String pathg : pathToDelete) {
  56                         GWT.log("[DEL]"+pathg, null);
  57                         RestRequestBuilder builder = new RestRequestBuilder("DELETE", pathg);
  58
  59                         try {
  60                                 handleHeaders(builder, pathg);
  61                                 builder.sendRequest("", new RequestCallback() {
  62
  63                                         public void onError(Request arg0, Throwable arg1) {
  64                                                 errors.put(pathg, arg1);
  65                                         }
  66
  67                                         public void onResponseReceived(Request arg0, Response arg1) {
  68                                                 if (arg1.getStatusCode() == 204)
  69                                                         successPaths.add(pathg);
  70                                                 else if(arg1.getStatusCode() == 403)
  71                                                         sessionExpired();
  72                                                 else if (arg1.getStatusCode() == 405)
  73                                                         errors.put(pathg, new InsufficientPermissionsException("You don't have permissions to delete this resource"));
  74                                                 else
  75                                                         errors.put(pathg, new RestException(pathg, arg1.getStatusCode(), arg1.getStatusText(), arg1.getText()));
  76                                         }
  77
  78                                 });
  79                         } catch (Exception ex) {
  80                                 errors.put(pathg, ex);
  81                         }
  82                 }
  83         }
  84
  85         public boolean isComplete() {
  86                 return errors.size() + successPaths.size() == paths.length;
  87         }
  88
  89         public boolean execute() {
  90                 boolean com = isComplete();
  91                 if (com) {
  92                         if(hasErrors())
  93                                 for(String p : errors.keySet())
  94                                         onError(p, errors.get(p));
  95                         onComplete();
  96                         if(isShowLoadingIndicator())
  97                                 GSS.get().hideLoadingIndicator();
  98                         return false;
  99                 }
 100                 return true;
 101         }
 102
 103         public boolean hasErrors(){
 104                 return errors.size() >0;
 105         }
 106
 107
 108         /**
 109          * Retrieve the errors.
 110          *
 111          * @return the errors
 112          */
 113         public Map<String, Throwable> getErrors() {
 114                 return errors;
 115         }
 116
 117         public void debug(){
 118                 GWT.log("-ERRORS-->"+getErrors().size(), null);
 119                 for(String p : getErrors().keySet())
 120                         GWT.log("error:"+p, getErrors().get(p));
 121         }
 122
 123         public abstract void onError(String path, Throwable throwable);
 124
 125 }