fun validateName()

in src/main/kotlin/org/opensearch/replication/util/ValidationUtil.kt [48:77]
22 lines of code
13 McCabe index (conditional complexity)

    fun validateName(name: String, validationException: ValidationException) {
        if (name.toLowerCase(Locale.ROOT) != name)
            validationException.addValidationError("Value $name must be lowercase")

        if (!Strings.validFileName(name))
            validationException.addValidationError("Value $name must not contain the following characters ${Strings.INVALID_FILENAME_CHARS}")

        if (name.contains("#") || name.contains(":"))
            validationException.addValidationError("Value $name must not contain '#' or ':'")

        if (name == "." || name == "..")
            validationException.addValidationError("Value $name must not be '.' or '..'")

        if (name.startsWith('_') || name.startsWith('-') || name.startsWith('+'))
            validationException.addValidationError("Value $name must not start with '_' or '-' or '+'")

        try {
            var byteCount = name.toByteArray(charset("UTF-8")).size
            if (byteCount > MetadataCreateIndexService.MAX_INDEX_NAME_BYTES) {
                validationException.addValidationError("Value $name must not be longer than ${MetadataCreateIndexService.MAX_INDEX_NAME_BYTES} bytes")
            }
        } catch (e: UnsupportedEncodingException) {
            // UTF-8 should always be supported, but rethrow this if it is not for some reason
            validationException.addValidationError("Unable to determine length of $name")
        }

        // Additionally we don't allow replication for system indices i.e. starts with '.'
        if(name.startsWith("."))
            validationException.addValidationError("Value $name must not start with '.'")
    }