Class PartConverter

java.lang.Object

com.google.adk.a2a.converters.PartConverter

public final class PartConverter
extends Object

Utility class for converting between Google GenAI Parts and A2A DataParts.

**EXPERIMENTAL:** Subject to change, rename, or removal in any future patch release. Do not use in production code.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	A2A_DATA_PART_METADATA_IS_LONG_RUNNING_KEY
static final String	A2A_DATA_PART_METADATA_TYPE_CODE_EXECUTION_RESULT
static final String	A2A_DATA_PART_METADATA_TYPE_EXECUTABLE_CODE
static final String	A2A_DATA_PART_METADATA_TYPE_FUNCTION_CALL
static final String	A2A_DATA_PART_METADATA_TYPE_FUNCTION_RESPONSE
static final String	A2A_DATA_PART_METADATA_TYPE_KEY

Method Summary

Modifier and Type	Method	Description
static Optional<io.a2a.spec.DataPart>	convertGenaiPartToA2aPart(com.google.genai.types.Part part)	Convert a Google GenAI Part to an A2A Part.
static Optional<io.a2a.spec.Part<?>>	fromGenaiPart(com.google.genai.types.Part part)	Convert a GenAI part into the A2A JSON representation.
static com.google.genai.types.Content	messageToContent(io.a2a.spec.Message message)	Converts an A2A Message to a Google GenAI Content object.
static Optional<com.google.genai.types.Part>	toGenaiPart(io.a2a.spec.Part<?> a2aPart)	Convert an A2A JSON part into a Google GenAI part representation.
static com.google.common.collect.ImmutableList<com.google.genai.types.Part>	toGenaiParts(List<io.a2a.spec.Part<?>> a2aParts)
static Optional<io.a2a.spec.TextPart>	toTextPart(io.a2a.spec.Part<?> part)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

A2A_DATA_PART_METADATA_TYPE_KEY

public static final String A2A_DATA_PART_METADATA_TYPE_KEY

See Also:

• Constant Field Values

A2A_DATA_PART_METADATA_IS_LONG_RUNNING_KEY

public static final String A2A_DATA_PART_METADATA_IS_LONG_RUNNING_KEY

See Also:

• Constant Field Values

A2A_DATA_PART_METADATA_TYPE_FUNCTION_CALL

public static final String A2A_DATA_PART_METADATA_TYPE_FUNCTION_CALL

See Also:

• Constant Field Values

A2A_DATA_PART_METADATA_TYPE_FUNCTION_RESPONSE

public static final String A2A_DATA_PART_METADATA_TYPE_FUNCTION_RESPONSE

See Also:

• Constant Field Values

A2A_DATA_PART_METADATA_TYPE_CODE_EXECUTION_RESULT

public static final String A2A_DATA_PART_METADATA_TYPE_CODE_EXECUTION_RESULT

See Also:

• Constant Field Values

A2A_DATA_PART_METADATA_TYPE_EXECUTABLE_CODE

public static final String A2A_DATA_PART_METADATA_TYPE_EXECUTABLE_CODE

See Also:

• Constant Field Values

Method Details

toTextPart

public static Optional<io.a2a.spec.TextPart> toTextPart(io.a2a.spec.Part<?> part)

toGenaiPart

public static Optional<com.google.genai.types.Part> toGenaiPart(io.a2a.spec.Part<?> a2aPart)

Convert an A2A JSON part into a Google GenAI part representation.

toGenaiParts

public static com.google.common.collect.ImmutableList<com.google.genai.types.Part> toGenaiParts(List<io.a2a.spec.Part<?>> a2aParts)

convertGenaiPartToA2aPart

public static Optional<io.a2a.spec.DataPart> convertGenaiPartToA2aPart(com.google.genai.types.Part part)

Convert a Google GenAI Part to an A2A Part.

Parameters:

part - The GenAI part to convert.

Returns:

Optional containing the converted A2A Part, or empty if conversion fails.

messageToContent

public static com.google.genai.types.Content messageToContent(io.a2a.spec.Message message)

Converts an A2A Message to a Google GenAI Content object.

Parameters:

message - The A2A Message to convert.

Returns:

The converted Google GenAI Content object.

fromGenaiPart

public static Optional<io.a2a.spec.Part<?>> fromGenaiPart(com.google.genai.types.Part part)

Convert a GenAI part into the A2A JSON representation.