[Issue]: <title> not supported for japanese language..

[prasantpoudel]

Is there an existing issue for this?

• I have searched the existing issues
• I have checked #657 to validate if my issue is covered by community support

Describe the issue

I am testing the graphrag for japanese text to create a graph and query the text file using local and global method.

issue1- when the community report are generated , many part of the report the result are "title": "\u5343\u6210\u5de5\u696d\u682a\u5f0f\u4f1a\u793e like unicode format

issue2: when i query using the local method, it don't give the output from the text that i feeded at the time of indexing process. the llm is giving it own knowledge instead of searching from the lancedb or from community report.

model use llama3 using ollama service

[natoverse]

Please see #696 for non-English content, and #657 for non-OpenAI models. There may be commentary from the community that helps resolve your issue.

[ODENSUKI]

This is caused by not doing ensure_ascii=False in json.dumps.
I solved this by changing the class FileWorkflowCallbacks in file_workflow_callbacks.py as follows

class FileWorkflowCallbacks(NoopWorkflowCallbacks):
    """A reporter that writes to a file."""

    _out_stream: TextIOWrapper

    def __init__(self, directory: str):
        """Create a new file-based workflow reporter."""
        Path(directory).mkdir(parents=True, exist_ok=True)
        self._out_stream = open(  # noqa: PTH123, SIM115
            Path(directory) / "logs.json", "a", encoding="utf-8", errors="strict"
        )

    def on_error(
        self,
        message: str,
        cause: BaseException | None = None,
        stack: str | None = None,
        details: dict | None = None,
    ):
        """Handle when an error occurs."""
        self._out_stream.write(
            json.dumps({
                "type": "error",
                "data": message,
                "stack": stack,
                "source": str(cause),
                "details": details,
            }, ensure_ascii=False)
            + "\n"
        )
        message = f"{message} details={details}"
        log.info(message)

    def on_warning(self, message: str, details: dict | None = None):
        """Handle when a warning occurs."""
        self._out_stream.write(
            json.dumps({"type": "warning", "data": message, "details": details}, ensure_ascii=False) + "\n"
        )
        _print_warning(message)

    def on_log(self, message: str, details: dict | None = None):
        """Handle when a log message is produced."""
        self._out_stream.write(
            json.dumps({"type": "log", "data": message, "details": details}, ensure_ascii=False) + "\n"
        )

        message = f"{message} details={details}"
        log.info(message)


def _print_warning(skk):
    log.warning(skk)