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.RequestBuilder;
  32 import com.google.gwt.http.client.RequestCallback;
  33 import com.google.gwt.http.client.Response;
  34
  35
  36 /**
  37  * @author kman
  38  *
  39  */
  40 public abstract class MultiplePostCommand extends RestCommand {
  41
  42
  43         Map<String, Throwable> errors = new HashMap<String, Throwable>();
  44
  45         List<String> successPaths = new ArrayList<String>();
  46
  47         String[] paths;
  48
  49         public MultiplePostCommand(String[] pathToDelete, final int okStatusCode){
  50                 this(pathToDelete, okStatusCode, true);
  51         }
  52
  53         public MultiplePostCommand(String[] pathToDelete, String data, final int okStatusCode){
  54                 this(pathToDelete, data, okStatusCode, true);
  55         }
  56
  57         public MultiplePostCommand(String[] pathToDelete, final int okStatusCode, boolean showLoading){
  58                 this(pathToDelete, "", okStatusCode, showLoading);
  59         }
  60
  61         public MultiplePostCommand(String[] pathToDelete, String data, final int okStatusCode, boolean showLoading){
  62                 setShowLoadingIndicator(showLoading);
  63                 if(isShowLoadingIndicator())
  64                         GSS.get().showLoadingIndicator();
  65                 paths = pathToDelete;
  66                 for (final String pathg : pathToDelete) {
  67                         GWT.log("[DEL]"+pathg, null);
  68                         RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, pathg);
  69
  70                         try {
  71                                 handleHeaders(builder, pathg);
  72                                 builder.sendRequest(data, new RequestCallback() {
  73
  74                                         @Override
  75                                         public void onError(Request arg0, Throwable arg1) {
  76                                                 errors.put(pathg, arg1);
  77                                         }
  78
  79                                         @Override
  80                                         public void onResponseReceived(Request arg0, Response arg1) {
  81                                                 if (arg1.getStatusCode() == okStatusCode)
  82                                                         successPaths.add(pathg);
  83                                                 else if(arg1.getStatusCode() == 403)
  84                                                         sessionExpired();
  85                                                 else if (arg1.getStatusCode() == 405)
  86                                                         errors.put(pathg, new InsufficientPermissionsException("You don't have permissions to delete this resource"));
  87                                                 else
  88                                                         errors.put(pathg, new RestException(pathg, arg1.getStatusCode(), arg1.getStatusText(), arg1.getText()));
  89                                         }
  90
  91                                 });
  92                         } catch (Exception ex) {
  93                                 errors.put(pathg, ex);
  94                         }
  95                 }
  96         }
  97
  98         public boolean isComplete() {
  99                 return errors.size() + successPaths.size() == paths.length;
 100         }
 101
 102         @Override
 103         public boolean execute() {
 104                 boolean com = isComplete();
 105                 if (com) {
 106                         if(hasErrors())
 107                                 for(String p : errors.keySet())
 108                                         onError(p, errors.get(p));
 109                         onComplete();
 110                         if(isShowLoadingIndicator())
 111                                 GSS.get().hideLoadingIndicator();
 112                         return false;
 113                 }
 114                 return true;
 115         }
 116
 117
 118         /**
 119          * @param p
 120          * @param throwable
 121          */
 122         public abstract void onError(String p, Throwable throwable);
 123
 124         public boolean hasErrors(){
 125                 return errors.size() >0;
 126         }
 127
 128
 129         /**
 130          * Retrieve the errors.
 131          *
 132          * @return the errors
 133          */
 134         public Map<String, Throwable> getErrors() {
 135                 return errors;
 136         }
 137
 138         public void debug(){
 139                 GWT.log("-ERRORS-->"+getErrors().size(), null);
 140                 for(String p : getErrors().keySet())
 141                         GWT.log("error:"+p, getErrors().get(p));
 142         }
 143
 144         @Override
 145         public void onError(Throwable t) {
 146
 147
 148         }
 149
 150 }