code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/client/rest/MultiplePostCommand.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 /**
  36  * @author kman
  37  *
  38  */
  39 public abstract class MultiplePostCommand extends RestCommand {
  40
  41
  42         Map<String, Throwable> errors = new HashMap<String, Throwable>();
  43
  44         List<String> successPaths = new ArrayList<String>();
  45
  46         String[] paths;
  47
  48         public MultiplePostCommand(String[] pathToDelete, final int okStatusCode){
  49                 this(pathToDelete, okStatusCode, true);
  50         }
  51
  52         public MultiplePostCommand(String[] pathToDelete, final int okStatusCode, boolean showLoading){
  53                 setShowLoadingIndicator(showLoading);
  54                 if(isShowLoadingIndicator())
  55                         GSS.get().showLoadingIndicator();
  56                 paths = pathToDelete;
  57                 for (final String pathg : pathToDelete) {
  58                         GWT.log("[DEL]"+pathg, null);
  59                         RestRequestBuilder builder = new RestRequestBuilder("POST", pathg);
  60
  61                         try {
  62                                 handleHeaders(builder, pathg);
  63                                 builder.sendRequest("", new RequestCallback() {
  64
  65                                         public void onError(Request arg0, Throwable arg1) {
  66                                                 errors.put(pathg, arg1);
  67                                         }
  68
  69                                         public void onResponseReceived(Request arg0, Response arg1) {
  70                                                 if (arg1.getStatusCode() == okStatusCode)
  71                                                         successPaths.add(pathg);
  72                                                 else if(arg1.getStatusCode() == 403)
  73                                                         sessionExpired();
  74                                                 else if (arg1.getStatusCode() == 405)
  75                                                         errors.put(pathg, new InsufficientPermissionsException("You don't have permissions to delete this resource"));
  76                                                 else
  77                                                         errors.put(pathg, new RestException(pathg, arg1.getStatusCode(), arg1.getStatusText(), arg1.getText()));
  78                                         }
  79
  80                                 });
  81                         } catch (Exception ex) {
  82                                 errors.put(pathg, ex);
  83                         }
  84                 }
  85         }
  86
  87         public boolean isComplete() {
  88                 return errors.size() + successPaths.size() == paths.length;
  89         }
  90
  91         public boolean execute() {
  92                 boolean com = isComplete();
  93                 if (com) {
  94                         if(hasErrors())
  95                                 for(String p : errors.keySet())
  96                                         onError(p, errors.get(p));
  97                         onComplete();
  98                         if(isShowLoadingIndicator())
  99                                 GSS.get().hideLoadingIndicator();
 100                         return false;
 101                 }
 102                 return true;
 103         }
 104
 105
 106         /**
 107          * @param p
 108          * @param throwable
 109          */
 110         public abstract void onError(String p, Throwable throwable);
 111
 112         public boolean hasErrors(){
 113                 return errors.size() >0;
 114         }
 115
 116
 117         /**
 118          * Retrieve the errors.
 119          *
 120          * @return the errors
 121          */
 122         public Map<String, Throwable> getErrors() {
 123                 return errors;
 124         }
 125
 126         public void debug(){
 127                 GWT.log("-ERRORS-->"+getErrors().size(), null);
 128                 for(String p : getErrors().keySet())
 129                         GWT.log("error:"+p, getErrors().get(p));
 130         }
 131
 132         @Override
 133         public void onError(Throwable t) {
 134
 135
 136         }
 137
 138 }