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.RequestBuilder;
  32 import com.google.gwt.http.client.RequestCallback;
  33 import com.google.gwt.http.client.Response;
  34
  35 /**
  36  * @author kman
  37  */
  38 public abstract class MultipleDeleteCommand extends RestCommand {
  39
  40
  41         Map<String, Throwable> errors = new HashMap<String, Throwable>();
  42
  43         List<String> successPaths = new ArrayList<String>();
  44
  45         String[] paths;
  46
  47         public MultipleDeleteCommand(String[] pathToDelete){
  48                 this(pathToDelete, true);
  49         }
  50
  51         public MultipleDeleteCommand(String[] pathToDelete, boolean showLoading){
  52                 setShowLoadingIndicator(showLoading);
  53                 if(isShowLoadingIndicator())
  54                         GSS.get().showLoadingIndicator();
  55                 paths = pathToDelete;
  56                 for (final String pathg : pathToDelete) {
  57                         GWT.log("[DEL]"+pathg, null);
  58                         RequestBuilder builder = new RequestBuilder(RequestBuilder.DELETE, pathg);
  59
  60                         try {
  61                                 handleHeaders(builder, pathg);
  62                                 builder.sendRequest("", new RequestCallback() {
  63
  64                                         @Override
  65                                         public void onError(Request arg0, Throwable arg1) {
  66                                                 errors.put(pathg, arg1);
  67                                         }
  68
  69                                         @Override
  70                                         public void onResponseReceived(Request arg0, Response arg1) {
  71                                                 if (arg1.getStatusCode() == 204)
  72                                                         successPaths.add(pathg);
  73                                                 else if(arg1.getStatusCode() == 403)
  74                                                         sessionExpired();
  75                                                 else if (arg1.getStatusCode() == 405)
  76                                                         errors.put(pathg, new InsufficientPermissionsException("You don't have permissions to delete this resource"));
  77                                                 else
  78                                                         errors.put(pathg, new RestException(pathg, arg1.getStatusCode(), arg1.getStatusText(), arg1.getText()));
  79                                         }
  80
  81                                 });
  82                         } catch (Exception ex) {
  83                                 errors.put(pathg, ex);
  84                         }
  85                 }
  86         }
  87
  88         public boolean isComplete() {
  89                 return errors.size() + successPaths.size() == paths.length;
  90         }
  91
  92         @Override
  93         public boolean execute() {
  94                 boolean com = isComplete();
  95                 if (com) {
  96                         if(hasErrors())
  97                                 for(String p : errors.keySet())
  98                                         onError(p, errors.get(p));
  99                         onComplete();
 100                         if(isShowLoadingIndicator())
 101                                 GSS.get().hideLoadingIndicator();
 102                         return false;
 103                 }
 104                 return true;
 105         }
 106
 107         public boolean hasErrors(){
 108                 return errors.size() >0;
 109         }
 110
 111
 112         /**
 113          * Retrieve the errors.
 114          *
 115          * @return the errors
 116          */
 117         public Map<String, Throwable> getErrors() {
 118                 return errors;
 119         }
 120
 121         public void debug(){
 122                 GWT.log("-ERRORS-->"+getErrors().size(), null);
 123                 for(String p : getErrors().keySet())
 124                         GWT.log("error:"+p, getErrors().get(p));
 125         }
 126
 127         public abstract void onError(String path, Throwable throwable);
 128
 129 }