ArkLlm中不支持图片上传吗

[zhanghj-java]

private Stream buildContentMessages(LlmRequest llmRequest)
方法中只抽取了文字部分，没有抽取原生google dto的图片部分数据，web页面上传图片不生效

[zhanghj-java]

简单修改了下，现在可以支持图片聊天了
private Stream buildContentMessages(LlmRequest llmRequest) {
return llmRequest.contents().stream()
.map(
content ->
ChatMessage.builder()
.role(toArkRole(content.role().orElse("user")))
// .content(extractText(content))
.multiContent(extractMultiContent(content))
.build());
}

private List extractMultiContent(Content content) {

    List<ChatCompletionContentPart> multiContent = new ArrayList<>();
    List<ChatCompletionContentPart> imageParts = new ArrayList<>();

    StringBuilder textBuilder = new StringBuilder();
    // Use ifPresent with a lambda for a more functional and readable style
    content.parts()
            .ifPresent(
                    parts -> {
                        for (Part part : parts) {
                            if (part == null) {
                                continue;
                            }
                            // Append text part
                            appendTextPart(part, textBuilder);
                            // Append function response part
                            appendFunctionResponsePart(part, textBuilder);

                            part.inlineData().ifPresent(inlineData -> {
                                // Check if mimeType and data are present
                                Optional<String> mimeTypeOpt = inlineData.mimeType();
                                Optional<byte[]> dataOpt = inlineData.data();
                                
                                if (mimeTypeOpt.isPresent() && dataOpt.isPresent()) {
                                    String mimeType = mimeTypeOpt.get();
                                    byte[] data = dataOpt.get();
                                    // Convert byte array to base64
                                    String base64Data = java.util.Base64.getEncoder().encodeToString(data);
                                    // Build data URL format: data:{mimeType};base64,{base64Data}
                                    String imageUrl = "data:" + mimeType + ";base64," + base64Data;
                                    imageParts.add(ChatCompletionContentPart.builder()
                                            .type("image_url")
                                            .imageUrl(new ChatCompletionContentPart.ChatCompletionContentPartImageURL(imageUrl))
                                            .build());
                                }
                            });
                        }
                    });

    // Add text part first if exists
    if (textBuilder.length() > 0) {
        multiContent.add(ChatCompletionContentPart.builder().type("text").text(textBuilder.toString()).build());
    }
    
    // Add all image parts after text
    multiContent.addAll(imageParts);
    
    return multiContent;

}