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Add Anthropic PDF Multimodal Support #1821

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Add Anthropic PDF Multimodal Support #1821

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23 changes: 18 additions & 5 deletions ...pring-ai-anthropic/src/main/java/org/springframework/ai/anthropic/AnthropicChatModel.java
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,7 @@
import org.springframework.ai.anthropic.api.AnthropicApi.ChatCompletionRequest;
import org.springframework.ai.anthropic.api.AnthropicApi.ChatCompletionResponse;
import org.springframework.ai.anthropic.api.AnthropicApi.ContentBlock;
import org.springframework.ai.anthropic.api.AnthropicApi.ContentBlock.Source;
import org.springframework.ai.anthropic.api.AnthropicApi.ContentBlock.Type;
import org.springframework.ai.anthropic.api.AnthropicApi.Role;
import org.springframework.ai.anthropic.metadata.AnthropicUsage;
Expand All @@ -58,6 +59,7 @@
import org.springframework.ai.chat.prompt.ChatOptions;
import org.springframework.ai.chat.prompt.ChatOptionsBuilder;
import org.springframework.ai.chat.prompt.Prompt;
import org.springframework.ai.model.Media;
import org.springframework.ai.model.ModelOptionsUtils;
import org.springframework.ai.model.function.FunctionCallback;
import org.springframework.ai.model.function.FunctionCallbackContext;
Expand Down Expand Up @@ -355,6 +357,16 @@ else if (mediaData instanceof String text) {

}

private Type getContentBlockTypeByMedia(Media media) {
if (media.getMimeType().toString().startsWith("image")) {
return Type.IMAGE;
}
else if (media.getMimeType().toString().contains("pdf")) {
return Type.DOCUMENT;
}
return Type.IMAGE;
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@markpollack markpollack Nov 26, 2024

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if it wasn't classified as image, prob better to throw an exception

}

ChatCompletionRequest createRequest(Prompt prompt, boolean stream) {

Set<String> functionsForThisRequest = new HashSet<>();
Expand All @@ -367,11 +379,12 @@ ChatCompletionRequest createRequest(Prompt prompt, boolean stream) {
List<ContentBlock> contents = new ArrayList<>(List.of(new ContentBlock(message.getContent())));
if (message instanceof UserMessage userMessage) {
if (!CollectionUtils.isEmpty(userMessage.getMedia())) {
List<ContentBlock> mediaContent = userMessage.getMedia()
.stream()
.map(media -> new ContentBlock(media.getMimeType().toString(),
this.fromMediaData(media.getData())))
.toList();
List<ContentBlock> mediaContent = userMessage.getMedia().stream().map(media -> {
Type contentBlockType = getContentBlockTypeByMedia(media);
var source = new Source(media.getMimeType().toString(),
this.fromMediaData(media.getData()));
return new ContentBlock(contentBlockType, source);
}).toList();
contents.addAll(mediaContent);
}
}
Expand Down
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