using in Android project

[ilker-aktuna]

I am trying to use Simple-OpenAI on an Android project but I get this error in dexing phase:

Task :app:mergeExtDexDebug FAILED
AGPBI: {"kind":"error","text":"java.lang.NullPointerException","sources":[{"file":"C:\Users\ilker\.gradle\caches\modules-2\files-2.1\org.slf4j\slf4j-simple\2.0.13\be11a3f05f7cf546524b07ad252719d840f4daed\slf4j-simple-2.0.13.jar"}],"tool":"D8"}
AGPBI: {"kind":"error","text":"java.lang.NullPointerException","sources":[{"file":"C:\Users\ilker\.gradle\caches\modules-2\files-2.1\org.slf4j\slf4j-api\2.0.13\80229737f704b121a318bba5d5deacbcf395bc77\slf4j-api-2.0.13.jar"}],"tool":"D8"}

Execution failed for task ':app:mergeExtDexDebug'.

Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
Failed to transform slf4j-simple-2.0.13.jar (org.slf4j:slf4j-simple:2.0.13) to match attributes {artifactType=android-dex, asm-transformed-variant=NONE, dexing-enable-desugaring=true, dexing-enable-jacoco-instrumentation=false, dexing-is-debuggable=true, dexing-min-sdk=27, org.gradle.category=library, org.gradle.libraryelements=jar, org.gradle.status=release, org.gradle.usage=java-runtime}.
> Execution failed for DexingNoClasspathTransform: C:\Users\ilker.gradle\caches\modules-2\files-2.1\org.slf4j\slf4j-simple\2.0.13\be11a3f05f7cf546524b07ad252719d840f4daed\slf4j-simple-2.0.13.jar.
> Error while dexing.
Failed to transform slf4j-api-2.0.13.jar (org.slf4j:slf4j-api:2.0.13) to match attributes {artifactType=android-dex, asm-transformed-variant=NONE, dexing-enable-desugaring=true, dexing-enable-jacoco-instrumentation=false, dexing-is-debuggable=true, dexing-min-sdk=27, org.gradle.category=library, org.gradle.libraryelements=jar, org.gradle.status=release, org.gradle.usage=java-runtime}.
> Execution failed for DexingNoClasspathTransform: C:\Users\ilker.gradle\caches\modules-2\files-2.1\org.slf4j\slf4j-api\2.0.13\80229737f704b121a318bba5d5deacbcf395bc77\slf4j-api-2.0.13.jar.
> Error while dexing.

I am not a gradle expert but I understand that gradle can't use the dependency slf4j-simple
Any ideas for a solution ? Or root cause of the issue ?

[sashirestela]

@ilker-aktuna Thanks for trying simple-openai.

In the discussion #117 you can find an approach to solve your dependency issue with Gradle.

However, you cannot use this library on Android, because Android does not support the Java 11 HttpClient component, a current key component for simple-openai. Researching is necessary to evaluate if I can replace it with another component supported by Android #114

[ilker-aktuna]

@sashirestela thanks for your quick response.
Actually I already saw that discussion and applied the workaround.
But it did not change the result for me.
Maybe, the problem is different...

I added following block to the end of the android section of my build.gradle

packagingOptions {
    merge "simplelogger.properties"
}

Should it be placed elsewhere ?

Btw, I can adapt my project to use HttpClient if I can solve the issue with dexing..

On the other hand, I am just looking for a simple method to maintain Stream response from openAI for the run request.
Maybe you can guide me to a solution that I can work on. Which library would be good to handle stream response ?
If I can write my own method , I won't need to adapt to your library...

[sashirestela]

Actually I already saw that discussion and applied the workaround.
But it did not change the result for me.
Maybe, the problem is different...

Maybe you could drop a message to the discussion's author (Bjorn Bringert).

Btw, I can adapt my project to use HttpClient if I can solve the issue with dexing..

That will be awesome, just let me know when you got it.

On the other hand, I am just looking for a simple method to maintain Stream response from openAI for the run request.
Maybe you can guide me to a solution that I can work on. Which library would be good to handle stream response ?

For all the http communication even Stream, I'm using the cleverclient library, however it depends on Java 11 HttpClient.

[ilker-aktuna]

thank you.
it is also using the same dependency. and I have the same issue when I use it:

Execution failed for task ':app:mergeExtDexDebug'.

Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
Failed to transform slf4j-simple-2.0.12.jar (org.slf4j:slf4j-simple:2.0.12) to match attributes {artifactType=android-dex, asm-transformed-variant=NONE, dexing-enable-desugaring=true, dexing-enable-jacoco-instrumentation=false, dexing-is-debuggable=true, dexing-min-sdk=27, org.gradle.category=library, org.gradle.libraryelements=jar, org.gradle.status=release, org.gradle.usage=java-runtime}.
> Execution failed for DexingNoClasspathTransform: C:\Users\ilker.gradle\caches\modules-2\files-2.1\org.slf4j\slf4j-simple\2.0.12\5fb15030fb6158ef4f63ce4f889f72f4259a7bc3\slf4j-simple-2.0.12.jar.
> Error while dexing.
Failed to transform slf4j-api-2.0.12.jar (org.slf4j:slf4j-api:2.0.12) to match attributes {artifactType=android-dex, asm-transformed-variant=NONE, dexing-enable-desugaring=true, dexing-enable-jacoco-instrumentation=false, dexing-is-debuggable=true, dexing-min-sdk=27, org.gradle.category=library, org.gradle.libraryelements=jar, org.gradle.status=release, org.gradle.usage=java-runtime}.
> Execution failed for DexingNoClasspathTransform: C:\Users\ilker.gradle\caches\modules-2\files-2.1\org.slf4j\slf4j-api\2.0.12\48f109a2a6d8f446c794f3e3fa0d86df0cdfa312\slf4j-api-2.0.12.jar.
> Error while dexing.

I really need to find a solution to this but I can't
seems like nobody else had this issue..

[sashirestela]

I've asked to ChatGpt and it has some suggestions. Take a look at:

https://chat.openai.com/share/5e804d23-7e9e-4a64-9773-bd694521b9fc

[ilker-aktuna]

thanks. I've tried them all now without any success.
Probably something very simple (as nobody else has encountered) but I can't see...

I am trying to write my own stream handler now. Would it be possible to do it with HttpUrlConnection like :

private void runThread() {
        Thread thread = new Thread(new Runnable() {

            @Override
            public void run() {
                HttpsURLConnection con = null;
                InputStream is = null;
                try {
                    URL url = new URL("https://api.openai.com/v1/threads/"+threadID+"/runs");
                    con = (HttpsURLConnection) url.openConnection();
                    con.setRequestMethod("POST");
                    con.setConnectTimeout(2000);
                    con.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
                    con.setRequestProperty("Authorization", "Bearer "+APIKEY);
                    con.setRequestProperty("OpenAI-Beta", "assistants=v2");
                    con.setUseCaches (false);
                    con.setDoInput(true);
                    con.setDoOutput(true);
                    JSONObject parent=new JSONObject();
                    parent.put("assistant_id", assistantID);
                    parent.put("stream", true);
                    //parent.put("instructions", "You are a friend. When asked a question, answer friendly. Your name is Amiga.");
                    byte[] postData = parent.toString().getBytes();
                    OutputStream wr = con.getOutputStream();
                    wr.write( postData );
                    wr.flush ();
                    wr.close ();

                    if (con.getErrorStream() != null) {
                        is = con.getErrorStream();
                        BufferedReader rd = new BufferedReader(new InputStreamReader(is));
                        char[] msgsReadArray = new char[5000];
                        int currentCharsCount = 0;
                        int currOffset = 0;
                        int currMsgBytesLength = 0;
                        while ((currentCharsCount = rd.read(msgsReadArray, currOffset , 5000 - currOffset)) != -1 ) {
                            String lastStreamingMsg = new String(msgsReadArray, 0, currMsgBytesLength);
                            Log.d(TAG,"msg:"+lastStreamingMsg);
                            currOffset += currentCharsCount;
                        }
                        /*
                        String line;
                        StringBuffer response = new StringBuffer();
                        while ((line = rd.readLine()) != null) {
                            response.append(line);
                            response.append('\r');
                        }
                        Log.d("000000", response.toString());

                         */
                        rd.close();
                        is.close();
                    } else {
                        is = con.getInputStream();
                        BufferedReader rd = new BufferedReader(new InputStreamReader(is));
                        char[] msgsReadArray = new char[5000];
                        int currentCharsCount = 0;
                        int currOffset = 0;
                        int currMsgBytesLength = 0;
                        while ((currentCharsCount = rd.read(msgsReadArray, currOffset , 5000 - currOffset)) != -1 ) {
                            String lastStreamingMsg = new String(msgsReadArray, 0, currMsgBytesLength);
                            if(lastStreamingMsg.length() >1) {
                                //responseTV.append(lastStreamingMsg);
                                Log.d(TAG, "msg:" + lastStreamingMsg + lastStreamingMsg.length() );
                            }
                            currOffset += currentCharsCount;
                        }
                        rd.close();
                        is.close();

                    }
                } catch (java.net.SocketTimeoutException e) {
                } catch (java.io.IOException e) {
                } catch (Exception e) {
                } finally {
                    try {
                        is.close();
                    } catch (Throwable t) {
                    }
                    try {
                        con.disconnect();
                    } catch (Throwable t) {
                    }
                    //RETURN
                }
            }
        });
        thread.start();
    }

[ilker-aktuna]

I just need a simple method to handle a incoming stream.
Any client (okhttp, httpclient, httpurlconnection) would be fine for me.
Just need the algorithm to handle http stream.
I'd appreciate any ideas.

@sashirestela
maybe you can point me to the part of code you wrote in this project that handles the incoming http stream.

[sashirestela]

@ilker-aktuna This class could be your starting point to study the code for handling Server Sent Events as stream:

https://github.com/sashirestela/cleverclient/blob/main/src/main/java/io/github/sashirestela/cleverclient/sender/HttpAsyncStreamEventSender.java

[ilker-aktuna]

thank you.
Actually I asked chatGPT which library I could use for my purpose. I got the answer "okhttp3" and an example code snipplet.
It worked. Now I am writing my own wrapper library using okhttp.
I finally managed to upload a file and receive a stream of SSE
thanks.

[sashirestela]

Ok, good luck!