Develop Reference

ApolloQueryCall Test in java

I am trying to test onResponse method. If I understand korrectly, when I call apolloQueryCall.enqueue , it should return response as response. When I run this code, it does not enter neither onResponse or onFailere. What am I missing? I could not find examples that work for me on the internet for Java.
String body = "{\n" +
" \"data\": {\n" +
" \"message\": \"kedi\"\n" +
" }\n" +
"}";
MockWebServer webServer = new MockWebServer();
MockResponse response = new MockResponse().setResponseCode(200).setBody(body);
webServer.enqueue(response);
var apolloClient = ApolloClient.builder()
.serverUrl(webServer.url("http://localhost/mock"))
.okHttpClient(okHttpClient)
.build();
var apolloQueryCall = apolloClient.query(query);
apolloQueryCall.enqueue(new ApolloCall.Callback<MyClass.Data>() {
#Override
public void onResponse(#NotNull Response<MyClass.Data> response) {
System.out.println("response:" + response);
}
#Override
public void onFailure(#NotNull ApolloException e) {
System.out.println(e.getMessage());
}
});
webServer.close();

Get data from blob in android webview

I'm creating an application that uses web view to load the website and allow to download data like IMG/PDF/GIF. The problem is that the download link is not a normal link it's blob:.
I know blob: URL does not refer to the data that exists on the server, it refers to data that your browser currently has in memory.
class DownloadBlobFileJSInterface {
private Context mContext;
private DownloadGifSuccessListener mDownloadGifSuccessListener;
public DownloadBlobFileJSInterface(Context context) {
this.mContext = context;
}
public static String getBase64StringFromBlobUrl(String blobUrl) {
if (blobUrl.startsWith("blob")) {
return "javascript: var xhr = new XMLHttpRequest();" +
"xhr.open('GET', '" + blobUrl + "', true);" +
"xhr.setRequestHeader('Content-type','image/gif');" +
"xhr.responseType = 'blob';" +
"xhr.onload = function(e) {" +
" if (this.status == 200) {" +
" var blobFile = this.response;" +
" var reader = new FileReader();" +
" reader.readAsDataURL(blobFile);" +
" reader.onloadend = function() {" +
" base64data = reader.result;" +
" Android.getBase64FromBlobData(base64data);" +
" }" +
" }" +
"};" +
"xhr.send();";
}
return "javascript: console.log('It is not a Blob URL');";
}
public void setDownloadGifSuccessListener(DownloadGifSuccessListener listener) {
mDownloadGifSuccessListener = listener;
}
#JavascriptInterface
public void getBase64FromBlobData(String base64Data) {
convertToGifAndProcess(base64Data);
}
private void convertToGifAndProcess(String base64) {
ContextWrapper wrapper = new ContextWrapper(mContext);
String fullPath =wrapper.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS).toString();
File gifFile = new File(fullPath+ "/File_" + System.currentTimeMillis() + "_.gif");
saveGifToPath(base64, gifFile);
Toast.makeText(mContext, "Downloaded", Toast.LENGTH_SHORT).show();
if (mDownloadGifSuccessListener != null) {
mDownloadGifSuccessListener.downloadGifSuccess(gifFile.getAbsolutePath());
}
}
private void saveGifToPath(String base64, File gifFilePath) {
try {
byte[] fileBytes = Base64.decode(base64.replaceFirst(
"data:image/gif;base64,", ""), 0);
FileOutputStream os = new FileOutputStream(gifFilePath, false);
os.write(fileBytes);
os.flush();
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public interface DownloadGifSuccessListener {
void downloadGifSuccess(String absolutePath);
}
}
I want to download the file in device storage.
Is there any way to get data from the blob: URL?
Or
Is it possible to send that data to chrome to download.
I know there is a lot of questions out there like this, this on StackOverflow, I almost tried all but didn't find any of these working.

How do I get a value from such a JSON Response

This is What i get as a response from the PlacesApi after making a request.
But the issue is that i cant get the value of "photo_reference".
The issue is also the Objects being in Arrays and all , the whole response looks confusing.
Below is what i have tried in android studio Java
private void getUserLocationImage(String mLocationName) {
String url = "https://maps.googleapis.com/maps/api/place/findplacefromtext/json?input="+mLocationName+"&inputtype=textquery&fields=photos&key="+R.string.google_api;
// prepare the Activities Request
JsonObjectRequest getWeatherRequest = new JsonObjectRequest(Request.Method.GET, url, null,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
try {
JSONArray dataArray = response.getJSONArray("candidates");
JSONObject photosObj = dataArray.getJSONObject(0);
JSONArray photosArray = photosObj.getJSONArray("photos");
JSONObject photoRefObj = photosArray.getJSONObject(0);
String imageRef = photoRefObj.get("photo_reference").toString();
Toast.makeText(HomeLandingPageActivity.this, ""+imageRef, Toast.LENGTH_SHORT).show();
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.d("Error.Response", error.toString());
}
});
// add it to the RequestQueue
queue.add(getWeatherRequest);
}
This is the Error
org.json.JSONException: Index 0 out of range [0..0)
This is what the response is in the Web
{
"candidates" : [
{
"photos" : [
{
"height" : 4160,
"html_attributions" : [
"\u003ca href=\"https://maps.google.com/maps/contrib/111684034547030396888\"\u003eCaroline Wood\u003c/a\u003e"
],
"photo_reference" : "CmRaAAAAQkMptoZgWJHING5qIR5_abXvnxjhHHEOHmDRH3ZpXUrar5PfpN5tQhhPoPwYmTDjpdVmXeT3T9klnrdK4xMvuudPm309UxMcx_ddbiu6E4shWYaPFn4gO4Diq4mOM46EEhCoo3TLpUbrWhInjelgVtYZGhSDJPyoRefWJ8WIcDs8Bk8VXAwHyQ",
"width" : 3120
}
]
}
],
"status" : "OK"
}

Try to use Gson library for deserilization your response. http://tutorials.jenkov.com/java-json/gson.html
It's very simple way to get any values from response
At first need create class with response model
import java.util.List;
public class ResponseBody {
public List<Candidates> candidates;
public static class Candidates {
public List<Photos> photos;
public static class Photos {
public int height;
public int width;
public String photo_reference;
public List<String> html_attributions;
}
}
}
Then just get your response as String and deserilize it:
String json = "{\n" +
" \"candidates\" : [\n" +
" {\n" +
" \"photos\" : [\n" +
" {\n" +
" \"height\" : 4160,\n" +
" \"html_attributions\" : [\n" +
" \"\\u003ca href=\\\"https://maps.google.com/maps/contrib/111684034547030396888\\\"\\u003eCaroline Wood\\u003c/a\\u003e\"\n" +
" ],\n" +
" \"photo_reference\" : \"CmRaAAAAQkMptoZgWJHING5qIR5_abXvnxjhHHEOHmDRH3ZpXUrar5PfpN5tQhhPoPwYmTDjpdVmXeT3T9klnrdK4xMvuudPm309UxMcx_ddbiu6E4shWYaPFn4gO4Diq4mOM46EEhCoo3TLpUbrWhInjelgVtYZGhSDJPyoRefWJ8WIcDs8Bk8VXAwHyQ\",\n" +
" \"width\" : 3120\n" +
" }\n" +
" ]\n" +
" }\n" +
" ],\n" +
" \"status\" : \"OK\"\n" +
"}";
Gson gson = new Gson();
ResponseBody responseBody = gson.fromJson(json, ResponseBody.class);
System.out.println("responseBody = " + responseBody.candidates.get(0).photos.get(0).photo_reference);
I got this:
responseBody = CmRaAAAAQkMptoZgWJHING5qIR5_abXvnxjhHHEOHmDRH3ZpXUrar5PfpN5tQhhPoPwYmTDjpdVmXeT3T9klnrdK4xMvuudPm309UxMcx_ddbiu6E4shWYaPFn4gO4Diq4mOM46EEhCoo3TLpUbrWhInjelgVtYZGhSDJPyoRefWJ8WIcDs8Bk8VXAwHyQ

Apache FTP Server - Create user programmatically

I am using Apache FTP Server embedded in my code. I used the example from the Apache Website and did indeed embed the server in 5 mins (as shown)
Apache Example here
This example uses the users.properties file which is fine.
However, I would like to create my user in the code. I don't want users to be able to change attributes.
I've found various examples on the web but all seem incomplete and don't quite seem to have everything I need.
In a nutshell I would like to create a user in code based on the following properties configurations
# Password is "admin"
ftpserver.user.admin.userpassword=21232F297A57A5A743894A0E4A801FC3
ftpserver.user.admin.homedirectory=/home/ftproot
ftpserver.user.admin.enableflag=true
ftpserver.user.admin.writepermission=true
ftpserver.user.admin.maxloginnumber=0
ftpserver.user.admin.maxloginperip=0
ftpserver.user.admin.idletime=0
ftpserver.user.admin.uploadrate=0
ftpserver.user.admin.downloadrate=0
I've tried a few things including the following to no avail:
UserFactory uf = new UserFactory();
uf.setName( "admin" );
uf.setPassword( "admin" );
uf.setHomeDirectory( "/home/ftproot" );
uf.setMaxIdleTime( 0 );
uf.setEnabled(true);
uf.createUser();
I'm missing something and am unable to find any complete/working examples on the web.
EDIT
This is the error message I get
C:\WINDOWS>ftp localhost
Connected to localhost.
220 Service ready for new user.
User (localhost:(none)): admin
331 User name okay, need password for admin.
Password:
530 Authentication failed.
Login failed.
ftp>

FtpServerFactory serverFactory = new FtpServerFactory();
ListenerFactory factory = new ListenerFactory();
//factory.setServerAddress("127.0.0.1");
// set the port of the listener
factory.setPort(3232);
factory.setIdleTimeout(3000);
// replace the default listener
serverFactory.addListener("default", factory.createListener());
System.out.println("Adding Users Now");
PropertiesUserManagerFactory userManagerFactory = new PropertiesUserManagerFactory();
userManagerFactory.setFile(new File("users.properties"));
userManagerFactory.setPasswordEncryptor(new PasswordEncryptor()
{//We store clear-text passwords in this example
#Override
public String encrypt(String password) {
return password;
}
#Override
public boolean matches(String passwordToCheck, String storedPassword) {
return passwordToCheck.equals(storedPassword);
}
});
BaseUser user1 = new BaseUser();
user1.setName("test");
user1.setPassword("test");
user1.setHomeDirectory("D:/Softwares/ApacheFTP/ftpserver-1.0.6/apache-ftpserver-1.0.6/res/home");
List<Authority> authorities = new ArrayList<Authority>();
authorities.add(new WritePermission());
user1.setAuthorities(authorities);
UserManager um = userManagerFactory.createUserManager();
try
{
um.save(user1);//Save the user to the user list on the filesystem
}
catch (FtpException e1)
{
e1.printStackTrace();
}
serverFactory.setUserManager(um);
Map<String, Ftplet> m = new HashMap<String, Ftplet>();
m.put("miaFtplet", new Ftplet()
{
#Override
public void init(FtpletContext ftpletContext) throws FtpException {
System.out.println("init");
//System.out.println("Thread #" + Thread.currentThread().getId());
}
#Override
public void destroy() {
System.out.println("destroy");
//System.out.println("Thread #" + Thread.currentThread().getId());
}
#Override
public FtpletResult beforeCommand(FtpSession session, FtpRequest request) throws FtpException, IOException
{
//System.out.println("beforeCommand " + session.getUserArgument() + " : " + session.toString() + " | " + request.getArgument() + " : " + request.getCommand() + " : " + request.getRequestLine());
//System.out.println("Thread #" + Thread.currentThread().getId());
//do something
return FtpletResult.DEFAULT;//...or return accordingly
}
#Override
public FtpletResult afterCommand(FtpSession session, FtpRequest request, FtpReply reply) throws FtpException, IOException
{
//System.out.println("afterCommand " + session.getUserArgument() + " : " + session.toString() + " | " + request.getArgument() + " : " + request.getCommand() + " : " + request.getRequestLine() + " | " + reply.getMessage() + " : " + reply.toString());
//System.out.println("Thread #" + Thread.currentThread().getId());
//do something
return FtpletResult.DEFAULT;//...or return accordingly
}
#Override
public FtpletResult onConnect(FtpSession session) throws FtpException, IOException
{
//System.out.println("onConnect " + session.getUserArgument() + " : " + session.toString());
//System.out.println("Thread #" + Thread.currentThread().getId());
//do something
return FtpletResult.DEFAULT;//...or return accordingly
}
#Override
public FtpletResult onDisconnect(FtpSession session) throws FtpException, IOException
{
//System.out.println("onDisconnect " + session.getUserArgument() + " : " + session.toString());
//System.out.println("Thread #" + Thread.currentThread().getId());
//do something
return FtpletResult.DEFAULT;//...or return accordingly
}
});
serverFactory.setFtplets(m);
// start the server
FtpServer server = serverFactory.createServer();
System.out.println("Server Starting" + factory.getPort());
try{
server.start();
}
catch(Exception e2){e2.printStackTrace();}

asynccallback failures

In my app I need to add string vallues to the file(.property file, if it is important). and user enter this values in gwt GUI. Here is it's important part:
final Button submit = new Button("Submit");
addButton(submit);
submit.addSelectionListener(new SelectionListener<ButtonEvent>() {
#Override
public void componentSelected(ButtonEvent ce) {
keyWord.selectAll();
regexp.selectAll();
if (keyWord.getValue() != null){
setKeyWord(customerId, keyWord.getValue());
keyWord.setValue("");
}
if (regexp.getValue() != null){
setRegExp(customerId, regexp.getValue());
regexp.setValue("");
}
}
});
}
private void setKeyWord(final String customerId, final String keyword){
final AsyncCallback<String> callbackItems = new AsyncCallback<String>() {
public void onFailure(final Throwable caught) {
Window.alert("unable to add " + caught.toString());
}
public void onSuccess(final String x) {
Window.alert(x);
}
};
serverManagementSvc.setKeyWords(customerId, keyword, callbackItems);
}
private void setRegExp(final String customerId, final String regexp){
final AsyncCallback<String> calbackItems = new AsyncCallback<String>() {
#Override
public void onFailure(Throwable throwable) {
Window.alert("unable to add " + throwable.toString());
}
#Override
public void onSuccess(String s) {
Window.alert(s);
}
};
serverManagementSvc.setRegExp(customerId, regexp, calbackItems);
}
So I need to use Asunccallback to call methods which are in the "server part".
here are these methods:
//adds a new keyword to customers properties
public String setKeyWords(String customer, String word){
try{
PropertiesConfiguration props = new PropertiesConfiguration("/home/mikhail/bzrrep/DLP/DLPServer/src/main/resources/rules.properties");
String newKeyWord = new String(props.getString("users." + customer + ".keywords" + "," + word));
props.setProperty("users." + customer + ".keywords", newKeyWord);
props.save();
}catch (ConfigurationException e){
e.printStackTrace();
}
return "keyword " + word + " added";
}
// adds a new regexp to customer properties
public String setRegExp(String customer, String regexp){
try {
PropertiesConfiguration props = new PropertiesConfiguration("/home/mikhail/bzrrep/DLP/DLPServer/src/main/resources/rules.properties");
String newRegValue = new String(props.getString("users." + customer + ".regexps" + "," + regexp));
props.setProperty("users." + customer + ".regexps", newRegValue);
props.save();
} catch (ConfigurationException e){
e.printStackTrace();
}
return "regexp " + regexp + " added to " + customer + "'s config";
}
all interfaces are present.
when I run my code And press "submit" button in gui I see that both asynccallback failured(Window.alert, as you can see, shows "null pointer exception" despite of the fact that values which I send to methods are not null). why can it be? can you suggest me something?
UPD here is error which is shown by firebug:
uncaught exception: java.lang.ClassCastException
function W8(){try{null.a()}catch(a){return a}}

the problem is solved: there were a simple mistake in the code. I've closed brackets at the wrong place:
//adds a new keyword to customers properties
public String setKeyWords(String customer, String word){
try{
PropertiesConfiguration props = new PropertiesConfiguration("/home/mikhail/bzrrep/DLP/DLPServer/src/main/resources/rules.properties");
String newKeyWord = new String(props.getString("users." + customer + ".keywords") + "," + word);
props.setProperty("users." + customer + ".keywords", newKeyWord);
props.save();
}catch (ConfigurationException e){
e.printStackTrace();
}
return "keyword " + word + " added";
}
// adds a new regexp to customer properties
public String setRegExp(String customer, String regexp){
try {
PropertiesConfiguration props = new PropertiesConfiguration("/home/mikhail/bzrrep/DLP/DLPServer/src/main/resources/rules.properties");
String newRegValue = new String(props.getString("users." + customer + ".regexps") + "," + regexp);
props.setProperty("users." + customer + ".regexps", newRegValue);
props.save();
} catch (ConfigurationException e){
e.printStackTrace();
}
return "regexp " + regexp + " added to " + customer + "'s config";
}

I recommend that you recompile the GWT code using
-style PRETTY
and then check that firebug output again; it may give you a better clue, compared to your updated uncaught exception.
Next, I suggest you run it in the eclipse debugger, and set breakpoints in both the client and server code, and then you can inspect the variables and step through the code.