类class io.agentscope.core.message 2.x

Base64Source

public class Base64Source extends Source

源码Source io/agentscope/core/message/Base64Source.java:39–128

基类 64 来源，在智能体、模型与前端之间传递结构化消息和事件。位于 io.agentscope.core.message 包，继承自 Source。核心成员包括 getMediaType、getData、builder、Base64Source。

Represents Base64-encoded media content with media type and data.

This source is used for embedding media files directly in messages by encoding the binary data as Base64 strings. The format follows the standard MIME type convention with Base64 encoding.

Common media types include:

image/jpeg, image/png, image/gif - for images
audio/mpeg, audio/wav, audio/ogg - for audio
video/mp4, video/avi, video/mov - for video

This approach is useful when media files need to be included directly in messages rather than referenced by URL.

嵌套类摘要Nested Class Summary

类Class	类型Kind	说明Description
`Builder`	类class	构建器，用于构建并配置目标实例。 Builder for constructing Base64Source instances.

构造器摘要Constructor Summary

构造器Constructor	说明Description
`public` `Base64Source(String mediaType, String data)`	初始化 `Base64Source` 实例。 Creates a new Base64 source for JSON deserialization.

方法摘要Method Summary

方法Method	说明Description
`public String getMediaType()`	获取 `getMediaType`。 Gets the MIME type of the media content.
`public String getData()`	获取数据。 Gets the Base64-encoded media data.
`public static Builder builder()` static	返回构建器实例。 Creates a new builder for constructing Base64Source instances.

构造器详情Constructor Detail

Base64Source

public Base64Source(String mediaType, String data)

初始化 Base64Source 实例。

Creates a new Base64 source for JSON deserialization.

参数Parameters

名称Name	类型Type	说明Description
`mediaType`	String	media 类型（类型 `String`）。The MIME type of the media content (e.g., "image/jpeg")
`data`	String	数据（类型 `String`）。The Base64-encoded media data

抛出Throws

NullPointerException 可能抛出 `NullPointerException`。if mediaType or data is null

源码Source io/agentscope/core/message/Base64Source.java:53–58

方法详情Method Detail

getMediaType

public String getMediaType()

获取 getMediaType。

Gets the MIME type of the media content.

返回Returns String

返回字符串结果。The media type as a string (e.g., "image/jpeg")

源码Source io/agentscope/core/message/Base64Source.java:65–67

getData

public String getData()

获取数据。

Gets the Base64-encoded media data.

返回Returns String

返回字符串结果。The Base64 data string

源码Source io/agentscope/core/message/Base64Source.java:74–76

builder

public static Builder builder()

static

返回构建器实例。

Creates a new builder for constructing Base64Source instances.

返回Returns Builder

一种新的构建器实例。A new builder instance

源码Source io/agentscope/core/message/Base64Source.java:83–85

嵌套类详情Nested Class Detail

Builder

public static class Builder

构建器，用于构建并配置目标实例。位于 io.agentscope.core.message 包。核心成员包括 mediaType、data、build。

Builder for constructing Base64Source instances.