Synnefo » Pithos Web Client

import com.google.gwt.http.client.Request;

import com.google.gwt.http.client.RequestBuilder;

import com.google.gwt.http.client.RequestCallback;

import com.google.gwt.http.client.RequestException;

import com.google.gwt.http.client.Response;

import com.google.gwt.json.client.JSONArray;

import com.google.gwt.json.client.JSONObject;

import com.google.gwt.json.client.JSONParser;

import com.google.gwt.json.client.JSONString;

import com.google.gwt.json.client.JSONValue;

import gr.grnet.pithos.web.client.foldertree.File;

import gr.grnet.pithos.web.client.rest.GetRequest;

import gr.grnet.pithos.web.client.rest.RestRequestCallback;

import java.util.Iterator;

import java.util.List;

        String path = app.getApiPath() + app.getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + folder.getPrefix();

        RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);

        builder.setHeader("If-Modified-Since", "0");

        builder.setHeader("X-Auth-Token", app.getToken());

        try {

            builder.sendRequest("", new RequestCallback() {

                @Override

                public void onResponseReceived(Request request, Response response) {

                    if (response.getStatusCode() == Response.SC_OK) {

                        JSONValue json = JSONParser.parseStrict(response.getText());

                        JSONArray array = json.isArray();

                        int i = 0;

                        if (array != null) {

                            deleteObject(i, array);

                        }

                    }

                }

                @Override

                public void onError(Request request, Throwable exception) {

                    GSS.get().displayError("System error unable to delete folder: " + exception.getMessage());

                }

            });

        }

        catch (RequestException e) {

        }

	}

    private void deleteObject(final int i, final JSONArray array) {

        if (i < array.size()) {

            JSONObject o = array.get(i).isObject();

            if (o != null && !o.containsKey("subdir")) {

                JSONString name = o.get("name").isString();

                String path = app.getApiPath() + app.getUsername() + "/" + folder.getContainer() + "/" + name.stringValue();

                DeleteRequest delete = new DeleteRequest(path) {

                    @Override

                    public void onSuccess(Resource result) {

                        deleteObject(i + 1, array);

                    }

                    @Override

                    public void onError(Throwable t) {

                        GWT.log("", t);

                        GSS.get().displayError("System error unable to delete folder: " + t.getMessage());

                    }

                };

                delete.setHeader("X-Auth-Token", app.getToken());

                Scheduler.get().scheduleDeferred(delete);

            else {

                String subdir = o.get("subdir").isString().stringValue();

                subdir = subdir.substring(0, subdir.length() - 1);

                String path = app.getApiPath() + app.getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + subdir;

                RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);

                builder.setHeader("If-Modified-Since", "0");

                builder.setHeader("X-Auth-Token", app.getToken());

                try {

                    builder.sendRequest("", new RequestCallback() {

                        @Override

                        public void onResponseReceived(Request request, Response response) {

                            if (response.getStatusCode() == Response.SC_OK) {

                                JSONValue json = JSONParser.parseStrict(response.getText());

                                JSONArray array2 = json.isArray();

                                if (array2 != null) {

                                    int l = array.size();

                                    for (int j=0; j<array2.size(); j++) {

                                        array.set(l++, array2.get(j));

                                    }

                                }

                                deleteObject(i + 1, array);

                            }

                        }

                        @Override

                        public void onError(Request request, Throwable exception) {

                            GSS.get().displayError("System error unable to delete folder: " + exception.getMessage());

                        }

                    });

                }

                catch (RequestException e) {

        }

        else {

            String prefix = folder.getPrefix();

            String path = app.getApiPath() + app.getUsername() + "/" + folder.getContainer() + (prefix.length() == 0 ? "" : "/" + prefix);

            DeleteRequest deleteFolder = new DeleteRequest(path) {

                @Override

                public void onSuccess(Resource result) {

                    app.updateFolder(folder.getParent());

                }

                @Override

                public void onError(Throwable t) {

                    GWT.log("", t);

                    if (t instanceof RestException) {

                        app.displayError("Unable to delete folder: "+((RestException) t).getHttpStatusText());

                    }

                    else

                        GSS.get().displayError("System error unable to delete folder: " + t.getMessage());

                }

            };

            deleteFolder.setHeader("X-Auth-Token", app.getToken());

            Scheduler.get().scheduleDeferred(deleteFolder);

        }

    }