updated readme

README.md

@@ -353,6 +353,7 @@ Find the full `Javadoc` (API specifications) [here](https://amithkoujalgi.github
       conversational memory
     - `stream`: Add support for streaming responses from the model
 - [x] Setup logging
+- [ ] Use lombok
 - [ ] Add test cases
 - [ ] Handle exceptions better (maybe throw more appropriate exceptions)
 

src/main/java/io/github/amithkoujalgi/ollama4j/core/models/OllamaAsyncResultCallback.java

@@ -2,7 +2,6 @@ package io.github.amithkoujalgi.ollama4j.core.models;
 
 import io.github.amithkoujalgi.ollama4j.core.exceptions.OllamaBaseException;
 import io.github.amithkoujalgi.ollama4j.core.utils.Utils;
-
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStream;
@@ -23,9 +22,13 @@ public class OllamaAsyncResultCallback extends Thread {
   private final Queue<String> queue = new LinkedList<>();
   private String result;
   private boolean isDone;
+  private boolean succeeded;
+
+  private int httpStatusCode;
   private long responseTime = 0;
 
-    public OllamaAsyncResultCallback(HttpClient client, URI uri, OllamaRequestModel ollamaRequestModel) {
+  public OllamaAsyncResultCallback(
+      HttpClient client, URI uri, OllamaRequestModel ollamaRequestModel) {
     this.client = client;
     this.ollamaRequestModel = ollamaRequestModel;
     this.uri = uri;
@@ -38,44 +41,89 @@ public class OllamaAsyncResultCallback extends Thread {
   public void run() {
     try {
       long startTime = System.currentTimeMillis();
-            HttpRequest request = HttpRequest.newBuilder(uri).POST(HttpRequest.BodyPublishers.ofString(Utils.getObjectMapper().writeValueAsString(ollamaRequestModel))).header("Content-Type", "application/json").build();
-            HttpResponse<InputStream> response = client.send(request, HttpResponse.BodyHandlers.ofInputStream());
+      HttpRequest request =
+          HttpRequest.newBuilder(uri)
+              .POST(
+                  HttpRequest.BodyPublishers.ofString(
+                      Utils.getObjectMapper().writeValueAsString(ollamaRequestModel)))
+              .header("Content-Type", "application/json")
+              .build();
+      HttpResponse<InputStream> response =
+          client.send(request, HttpResponse.BodyHandlers.ofInputStream());
       int statusCode = response.statusCode();
+      this.httpStatusCode = statusCode;
 
       InputStream responseBodyStream = response.body();
-            String responseString = "";
-            try (BufferedReader reader = new BufferedReader(new InputStreamReader(responseBodyStream, StandardCharsets.UTF_8))) {
+      try (BufferedReader reader =
+          new BufferedReader(new InputStreamReader(responseBodyStream, StandardCharsets.UTF_8))) {
         String line;
         StringBuilder responseBuffer = new StringBuilder();
         while ((line = reader.readLine()) != null) {
-                    OllamaResponseModel ollamaResponseModel = Utils.getObjectMapper().readValue(line, OllamaResponseModel.class);
+          if (statusCode == 404) {
+            OllamaErrorResponseModel ollamaResponseModel =
+                Utils.getObjectMapper().readValue(line, OllamaErrorResponseModel.class);
+            queue.add(ollamaResponseModel.getError());
+            responseBuffer.append(ollamaResponseModel.getError());
+          } else {
+            OllamaResponseModel ollamaResponseModel =
+                Utils.getObjectMapper().readValue(line, OllamaResponseModel.class);
             queue.add(ollamaResponseModel.getResponse());
             if (!ollamaResponseModel.getDone()) {
               responseBuffer.append(ollamaResponseModel.getResponse());
             }
           }
+        }
         reader.close();
+
         this.isDone = true;
+        this.succeeded = true;
         this.result = responseBuffer.toString();
         long endTime = System.currentTimeMillis();
         responseTime = endTime - startTime;
       }
       if (statusCode != 200) {
-                throw new OllamaBaseException(statusCode + " - " + responseString);
+        throw new OllamaBaseException(this.result);
       }
     } catch (IOException | InterruptedException | OllamaBaseException e) {
       this.isDone = true;
-            this.result = "FAILED! " + e.getMessage();
+      this.succeeded = false;
+      this.result = "[FAILED] " + e.getMessage();
     }
   }
 
+  /**
+   * Returns the status of the thread. This does not indicate that the request was successful or a
+   * failure, rather it is just a status flag to indicate if the thread is active or ended.
+   *
+   * @return boolean - status
+   */
   public boolean isComplete() {
     return isDone;
   }
 
+  /**
+   * Returns the HTTP response status code for the request that was made to Ollama server.
+   *
+   * @return int - the status code for the request
+   */
+  public int getHttpStatusCode() {
+    return httpStatusCode;
+  }
+
+  /**
+   * Returns the status of the request. Indicates if the request was successful or a failure. If the
+   * request was a failure, the `getResponse()` method will return the error message.
+   *
+   * @return boolean - status
+   */
+  public boolean isSucceeded() {
+    return succeeded;
+  }
+
   /**
    * Returns the final response when the execution completes. Does not return intermediate results.
-     * @return response text
+   *
+   * @return String - response text
    */
   public String getResponse() {
     return result;
@@ -86,8 +134,9 @@ public class OllamaAsyncResultCallback extends Thread {
   }
 
   /**
-     * Returns the response time in seconds.
-     * @return response time in seconds
+   * Returns the response time in milliseconds.
+   *
+   * @return long - response time in milliseconds.
    */
   public long getResponseTime() {
     return responseTime;

src/main/java/io/github/amithkoujalgi/ollama4j/core/models/OllamaErrorResponseModel.java

@@ -0,0 +1,18 @@
+package io.github.amithkoujalgi.ollama4j.core.models;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import java.util.List;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+public class OllamaErrorResponseModel {
+  private String error;
+
+  public String getError() {
+    return error;
+  }
+
+  public void setError(String error) {
+    this.error = error;
+  }
+}

src/main/java/io/github/amithkoujalgi/ollama4j/core/models/OllamaResult.java

@@ -1,8 +1,14 @@
 package io.github.amithkoujalgi.ollama4j.core.models;
 
+import static io.github.amithkoujalgi.ollama4j.core.utils.Utils.getObjectMapper;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+
+/** The type Ollama result. */
 @SuppressWarnings("unused")
 public class OllamaResult {
-    private String response;
+  private final String response;
+
   private long responseTime = 0;
 
   public OllamaResult(String response, long responseTime) {
@@ -10,11 +16,30 @@ public class OllamaResult {
     this.responseTime = responseTime;
   }
 
+  /**
+   * Get the response text
+   *
+   * @return String - response text
+   */
   public String getResponse() {
     return response;
   }
 
+  /**
+   * Get the response time in milliseconds.
+   *
+   * @return long - response time in milliseconds
+   */
   public long getResponseTime() {
     return responseTime;
   }
+
+  @Override
+  public String toString() {
+    try {
+      return getObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(this);
+    } catch (JsonProcessingException e) {
+      throw new RuntimeException(e);
+    }
+  }
 }