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agents-flex-core/src/main/java/com/agentsflex/core/prompt/ImagePrompt.java

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+/*
+ *  Copyright (c) 2023-2025, Agents-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package com.agentsflex.core.prompt;
+
+import com.agentsflex.core.message.HumanImageMessage;
+import com.agentsflex.core.message.Message;
+import com.agentsflex.core.util.ImageUtil;
+import com.agentsflex.core.util.StringUtil;
+
+import java.io.File;
+import java.io.InputStream;
+import java.util.Collections;
+import java.util.List;
+
+public class ImagePrompt extends TextPrompt {
+
+    private String imageUrl;
+    private File imageFile;
+    private String imageBase64;
+
+    public ImagePrompt(String content) {
+        super(content);
+    }
+
+    public ImagePrompt(String content, String imageUrl) {
+        super(content);
+        this.imageUrl = imageUrl;
+    }
+
+    public ImagePrompt(String content, File imageFile) {
+        super(content);
+        this.imageFile = imageFile;
+    }
+
+    public ImagePrompt(String content, InputStream imageStream) {
+        super(content);
+        this.imageBase64 = ImageUtil.imageStreamToBase64(imageStream);
+    }
+
+    public String getImageUrl() {
+        return imageUrl;
+    }
+
+    public void setImageUrl(String imageUrl) {
+        this.imageUrl = imageUrl;
+    }
+
+    public File getImageFile() {
+        return imageFile;
+    }
+
+    public void setImageFile(File imageFile) {
+        this.imageFile = imageFile;
+    }
+
+    public String getImageBase64() {
+        return imageBase64;
+    }
+
+    public void setImageBase64(String imageBase64) {
+        this.imageBase64 = imageBase64;
+    }
+
+
+    public String toUrl() {
+        if (StringUtil.hasText(imageUrl)) {
+            return imageUrl;
+        }
+
+        if (imageBase64 != null) {
+            return imageBase64;
+        }
+
+        if (imageFile != null) {
+            imageBase64 = ImageUtil.imageFileToBase64(imageFile);
+            return imageBase64;
+        }
+        return null;
+    }
+
+
+    public String toImageBase64() {
+        if (imageBase64 != null) {
+            return imageBase64;
+        }
+
+        if (StringUtil.hasText(imageUrl)) {
+            imageBase64 = ImageUtil.imageUrlToBase64(imageUrl);
+            return imageBase64;
+        }
+
+        if (imageFile != null) {
+            imageBase64 = ImageUtil.imageFileToBase64(imageFile);
+            return imageBase64;
+        }
+
+        return null;
+    }
+
+    @Override
+    public List<Message> toMessages() {
+        return Collections.singletonList(new HumanImageMessage(this));
+    }
+
+
+    @Override
+    public String toString() {
+        return "ImagePrompt{" +
+            "imageUrl='" + imageUrl + '\'' +
+            ", content='" + content + '\'' +
+            ", metadataMap=" + metadataMap +
+            '}';
+    }
+
+}