Effective in 2026, to align with our trunk stable development model and ensure platform stability for the ecosystem, we will publish source code to AOSP in Q2 and Q4. For building and contributing to AOSP, we recommend utilizing android-latest-release instead of aosp-main. The android-latest-release manifest branch will always reference the most recent release pushed to AOSP. For more information, see Changes to AOSP.

ResultDBUtil

public final class ResultDBUtil
extends Object

java.lang.Object
↳	com.android.tradefed.result.resultdb.ResultDBUtil

Utility class for ResultDB reporter.

Summary

Public constructors
`ResultDBUtil()`

Public methods
`static String`	`bytesToHex(byte[] bytes)` Converts a byte array to a hexadecimal string.
`static String`	`makeValidKey(String key)` Ensure the key is valid for ResultDB.
`static String`	`testSkipReasonToSummaryHtml(SkipReason reason, String skipReasonType)` Converts a test skip reason to a summary HTML string.
`static TestIdentifier`	`toTestIdentifier(String moduleName, Variant moduleVariant, TestDescription testDescription)` Converts a TestDescription to a TestIdentifier.
`static String`	`truncateString(String input, int maxBytes)` Truncates the string to the given max bytes, avoiding breaking up a multi-byte character.

Public constructors

ResultDBUtil

public ResultDBUtil ()

Public methods

bytesToHex

public static String bytesToHex (byte[] bytes)

Converts a byte array to a hexadecimal string.

Parameters
`bytes`	`byte`

Returns
`String`

makeValidKey

public static String makeValidKey (String key)

Ensure the key is valid for ResultDB.

The key must match the regex: ^[a-z][a-z0-9_]*(/[a-z][a-z0-9_]*)*$

Parameters
`key`	`String`

Returns
`String`

testSkipReasonToSummaryHtml

public static String testSkipReasonToSummaryHtml (SkipReason reason, 
                String skipReasonType)

Converts a test skip reason to a summary HTML string. ResultDB does not yet have a skip reason field, we put them in the summary HTML field and test artifact for now. The return string can be longer than the summary HTML field limit, caller should truncate it if needed.

Parameters
`reason`	`SkipReason`
`skipReasonType`	`String`

Returns
`String`

toTestIdentifier

public static TestIdentifier toTestIdentifier (String moduleName, 
                Variant moduleVariant, 
                TestDescription testDescription)

Converts a TestDescription to a TestIdentifier.

Parameters
`moduleName`	`String`: the module name
`moduleVariant`	`Variant`: the module variant
`testDescription`	`TestDescription`: the test description

Returns
`TestIdentifier`	the ResultDB test identifier. This test identifier is not guaranteed to be valid (i.e. ResultDB may reject it, returning a invalid_argument error). This is because ResultDB has more strict requirements on the test identifier, such as the field length and character set.

truncateString

public static String truncateString (String input, 
                int maxBytes)

Truncates the string to the given max bytes, avoiding breaking up a multi-byte character.

Parameters
`input`	`String`: the string to truncate
`maxBytes`	`int`: the maximum number of bytes (in utf-8 encoding) to truncate to

Returns
`String`	the truncated string