public List<StreamSource> listSources(String groupId, String streamId, String sourceType) {
        SourcePageRequest pageRequest = new SourcePageRequest();
        pageRequest.setInlongGroupId(groupId);
        pageRequest.setInlongStreamId(streamId);
        pageRequest.setSourceType(sourceType);
        Response<PageResult<StreamSource>> response = ClientUtils.executeHttpCall(
                streamSourceApi.listSources(pageRequest));
        ClientUtils.assertRespSuccess(response);
        return response.getData().getList();
    }
List stream sources by the specified source type.
inlong-manager/manager-client/src/main/java/org/apache/inlong/manager/client/api/inner/client/StreamSourceClient.java