Class: Kura::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/kura/client.rb

Instance Method Summary collapse

Constructor Details

#initialize(default_project_id: nil, email_address: nil, private_key: nil, http_options: {timeout: 60}, default_retries: 5) ⇒ Client

Returns a new instance of Client.



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# File 'lib/kura/client.rb', line 11

def initialize(default_project_id: nil, email_address: nil, private_key: nil, http_options: {timeout: 60}, default_retries: 5)
  @default_project_id = default_project_id
  @scope = "https://www.googleapis.com/auth/bigquery"
  @email_address = email_address
  @private_key = private_key
  if @email_address and @private_key
    auth = Signet::OAuth2::Client.new(
      token_credential_uri: "https://accounts.google.com/o/oauth2/token",
      audience: "https://accounts.google.com/o/oauth2/token",
      scope: @scope,
      issuer: @email_address,
      signing_key: @private_key)
    # MEMO: signet-0.6.1 depend on Farady.default_connection
    Faraday.default_connection.options.timeout = 60
    auth.fetch_access_token!
  else
    auth = Google::Auth.get_application_default([@scope])
    auth.fetch_access_token!
  end
  Google::Apis::RequestOptions.default.retries = default_retries
  Google::Apis::RequestOptions.default.timeout_sec = http_options[:timeout]
  @api = Google::Apis::BigqueryV2::BigqueryService.new
  @api.authorization = auth

  if @default_project_id.nil?
    @default_project_id = self.projects.first.id
  end
end

Instance Method Details

#_convert_tabledata_field(x, field_info) ⇒ Object 



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# File 'lib/kura/client.rb', line 232

def _convert_tabledata_field(x, field_info)
  if x.nil? and field_info["mode"] == "NULLABLE"
    return nil
  end
  case field_info["type"]
  when "STRING"
    x.to_s
  when "INTEGER"
    Integer(x)
  when "FLOAT"
    Float(x)
  when "BOOLEAN"
    x.to_s == "true"
  when "RECORD"
    _convert_tabledata_row(x, field_info["fields"])
  else
    x
  end
end

#_convert_tabledata_row(row, schema) ⇒ Object 



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# File 'lib/kura/client.rb', line 252

def _convert_tabledata_row(row, schema)
  (row.respond_to?(:f) ? row.f : row["f"]).zip(schema).each_with_object({}) do |(v, s), tbl|
    v = JSON.parse(v.to_json)
    if s["mode"] == "REPEATED"
      tbl[s["name"]] = v["v"].map{|c| _convert_tabledata_field(c["v"], s) }
    else
      tbl[s["name"]] = _convert_tabledata_field(v["v"], s)
    end
  end
end

#batch ⇒ Object 



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# File 'lib/kura/client.rb', line 67

def batch
  @api.batch do |api|
    original_api, @api = @api, api
    begin
      yield
    ensure
      @api = original_api
    end
  end
end

#cancel_job(job, project_id: @default_project_id, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 571

def cancel_job(job, project_id: @default_project_id, &blk)
  case job
  when String
    jobid = job
  when Google::Apis::BigqueryV2::Job
    project_id = job.job_reference.project_id
    jobid = job.job_reference.job_id
  else
    raise TypeError, "Kura::Client#cancel_job accept String(job-id) or Google::Apis::BigqueryV2::Job"
  end
  if blk
    @api.cancel_job(project_id, jobid) do |r, e|
      r.job.kura_api = self if r.job
      blk.call(r.job, e)
    end
  else
    @api.cancel_job(project_id, jobid).job.tap{|j| j.kura_api = self if j }
  end
end

#copy(src_dataset_id, src_table_id, dest_dataset_id, dest_table_id, mode: :truncate, src_project_id: @default_project_id, dest_project_id: @default_project_id, job_project_id: @default_project_id, job_id: nil, wait: nil, dry_run: false, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 526

def copy(src_dataset_id, src_table_id, dest_dataset_id, dest_table_id,
         mode: :truncate,
         src_project_id: @default_project_id,
         dest_project_id: @default_project_id,
         job_project_id: @default_project_id,
         job_id: nil,
         wait: nil,
         dry_run: false,
         &blk)
  write_disposition = mode_to_write_disposition(mode)
  configuration = Google::Apis::BigqueryV2::JobConfiguration.new({
    copy: Google::Apis::BigqueryV2::JobConfigurationTableCopy.new({
      destination_table: Google::Apis::BigqueryV2::TableReference.new({
        project_id: dest_project_id,
        dataset_id: dest_dataset_id,
        table_id: dest_table_id,
      }),
      source_table: Google::Apis::BigqueryV2::TableReference.new({
        project_id: src_project_id,
        dataset_id: src_dataset_id,
        table_id: src_table_id,
      }),
      write_disposition: write_disposition,
    })
  })
  if dry_run
    configuration.dry_run = true
    wait = nil
  end
  insert_job(configuration, wait: wait, job_id: job_id, project_id: job_project_id, &blk)
end

#dataset(dataset_id, project_id: @default_project_id, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 107

def dataset(dataset_id, project_id: @default_project_id, &blk)
  if blk
    @api.get_dataset(project_id, dataset_id) do |result, err|
      if err.respond_to?(:status_code) and err.status_code == 404
        result = nil
        err = nil
      end
      blk.call(result, err)
    end
  else
    @api.get_dataset(project_id, dataset_id)
  end
rescue
  return nil if $!.respond_to?(:status_code) and $!.status_code == 404
  process_error($!)
end

#datasets(project_id: @default_project_id, all: false, limit: 1000, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 92

def datasets(project_id: @default_project_id, all: false, limit: 1000, &blk)
  all = normalize_parameter(all)
  if blk
    @api.list_datasets(project_id, all: all, max_results: limit) do |result, err|
      result &&= (result.datasets || [])
      blk.call(result, err)
    end
  else
    result = @api.list_datasets(project_id, all: all, max_results: limit)
    result.datasets || []
  end
rescue
  process_error($!)
end

#delete_dataset(dataset_id, project_id: @default_project_id, delete_contents: false, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 131

def delete_dataset(dataset_id, project_id: @default_project_id, delete_contents: false, &blk)
  delete_contents = normalize_parameter(delete_contents)
  @api.delete_dataset(project_id, dataset_id, delete_contents: delete_contents, &blk)
rescue
  return nil if $!.respond_to?(:status_code) and $!.status_code == 404
  process_error($!)
end

#delete_table(dataset_id, table_id, project_id: @default_project_id, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 225

def delete_table(dataset_id, table_id, project_id: @default_project_id, &blk)
  @api.delete_table(project_id, dataset_id, table_id, &blk)
rescue
  return nil if $!.respond_to?(:status_code) and $!.status_code == 404
  process_error($!)
end

#extract(dataset_id, table_id, dest_uris, compression: "NONE", destination_format: "CSV", field_delimiter: ",", print_header: true, project_id: @default_project_id, job_project_id: @default_project_id, job_id: nil, wait: nil, dry_run: false, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 491

def extract(dataset_id, table_id, dest_uris,
            compression: "NONE",
            destination_format: "CSV",
            field_delimiter: ",",
            print_header: true,
            project_id: @default_project_id,
            job_project_id: @default_project_id,
            job_id: nil,
            wait: nil,
            dry_run: false,
            &blk)
  dest_uris = [ dest_uris ] if dest_uris.is_a?(String)
  configuration = Google::Apis::BigqueryV2::JobConfiguration.new({
    extract: Google::Apis::BigqueryV2::JobConfigurationExtract.new({
      compression: compression,
      destination_format: destination_format,
      source_table: Google::Apis::BigqueryV2::TableReference.new({
        project_id: project_id,
        dataset_id: dataset_id,
        table_id: table_id,
      }),
      destination_uris: dest_uris,
    })
  })
  if dry_run
    configuration.dry_run = true
    wait = nil
  end
  if destination_format == "CSV"
    configuration.extract.field_delimiter = field_delimiter
    configuration.extract.print_header = normalize_parameter(print_header)
  end
  insert_job(configuration, wait: wait, job_id: job_id, project_id: job_project_id, &blk)
end

#insert_dataset(dataset_id, project_id: @default_project_id, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 124

def insert_dataset(dataset_id, project_id: @default_project_id, &blk)
  obj = Google::Apis::BigqueryV2::Dataset.new(dataset_reference: Google::Apis::BigqueryV2::DatasetReference.new(project_id: project_id, dataset_id: dataset_id))
  @api.insert_dataset(project_id, obj, &blk)
rescue
  process_error($!)
end

#insert_job(configuration, job_id: nil, project_id: @default_project_id, media: nil, wait: nil, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 331

def insert_job(configuration, job_id: nil, project_id: @default_project_id, media: nil, wait: nil, &blk)
  job_object = Google::Apis::BigqueryV2::Job.new
  job_object.configuration = configuration
  if job_id
    job_object.job_reference = Google::Apis::BigqueryV2::JobReference.new
    job_object.job_reference.project_id = project_id
    job_object.job_reference.job_id = job_id
  end
  if wait
    job = @api.insert_job(project_id, job_object, upload_source: media)
    job.kura_api = self
    wait_job(job, wait, &blk)
  else
    if blk
      @api.insert_job(project_id, job_object, upload_source: media) do |r, err|
        if r
          r.kura_api = self
        end
        blk.call(r, err)
      end
    else
      job = @api.insert_job(project_id, job_object, upload_source: media)
      job.kura_api = self
      job
    end
  end
rescue
  process_error($!)
end

#insert_table(dataset_id, table_id, project_id: @default_project_id, expiration_time: nil, friendly_name: nil, schema: nil, description: nil, query: nil, external_data_configuration: nil, use_legacy_sql: true, time_partitioning: nil, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 181

def insert_table(dataset_id, table_id, project_id: @default_project_id, expiration_time: nil,
                 friendly_name: nil, schema: nil, description: nil,
                 query: nil, external_data_configuration: nil,
                 use_legacy_sql: true,
                 time_partitioning: nil,
                 &blk)
  if expiration_time
    expiration_time = (expiration_time.to_f * 1000.0).to_i
  end
  if query
    view = { query: query, use_legacy_sql: !!use_legacy_sql }
  elsif external_data_configuration
  elsif schema
    schema = { fields: normalize_schema(schema) }
  end
  table = Google::Apis::BigqueryV2::Table.new(
    table_reference: {project_id: project_id, dataset_id: dataset_id, table_id: table_id},
    friendly_name: friendly_name,
    description: description,
    schema: schema,
    expiration_time: expiration_time,
    view: view,
    external_data_configuration: external_data_configuration)
  if time_partitioning
    table.time_partitioning = Google::Apis::BigqueryV2::TimePartitioning.new(time_partitioning)
  end
  @api.insert_table(project_id, dataset_id, table, &blk)
rescue
  process_error($!)
end

#insert_tabledata(dataset_id, table_id, rows, project_id: @default_project_id, ignore_unknown_values: false, skip_invalid_rows: false, template_suffix: nil) ⇒ Object 



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# File 'lib/kura/client.rb', line 293

def insert_tabledata(dataset_id, table_id, rows, project_id: @default_project_id, ignore_unknown_values: false, skip_invalid_rows: false, template_suffix: nil)
  request = Google::Apis::BigqueryV2::InsertAllTableDataRequest.new
  request.ignore_unknown_values = ignore_unknown_values
  request.skip_invalid_rows = skip_invalid_rows
  if template_suffix
    request.template_suffix = template_suffix
  end
  request.rows = rows.map do |r|
    case r
    when Google::Apis::BigqueryV2::InsertAllTableDataRequest::Row
      r
    when Hash
      row = Google::Apis::BigqueryV2::InsertAllTableDataRequest::Row.new
      if r.keys.map(&:to_s) == %w{ insert_id json }
        row.insert_id = r[:insert_id] || r["insert_id"]
        row.json = r[:json] || r["json"]
      else
        row.json = r
      end
      row
    else
      raise ArgumentError, "invalid row for BigQuery tabledata.insertAll #{r.inspect}"
    end
  end

  r = @api.insert_all_table_data(project_id, dataset_id, table_id, request)
rescue
  process_error($!)
end

#job(job_id, project_id: @default_project_id, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 558

def job(job_id, project_id: @default_project_id, &blk)
  if blk
    @api.get_job(project_id, job_id) do |j, e|
      j.kura_api = self if j
      blk.call(j, e)
    end
  else
    @api.get_job(project_id, job_id).tap{|j| j.kura_api = self if j }
  end
rescue
  process_error($!)
end

#job_finished?(r) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/kura/client.rb', line 591

def job_finished?(r)
  if r.status.state == "DONE"
    if r.status.error_result
      raise Kura::ApiError.new(r.status.errors.map(&:reason).join(","),
                               r.status.errors.map{|e|
                                 msg = "reason=#{e.reason} message=#{e.message}"
                                 msg += " location=#{e.location}" if e.location
                                 msg += " debug_infoo=#{e.debug_info}" if e.debug_info
                                 msg
                               }.join("\n"))
    end
    return true
  end
  return false
end

#list_tabledata(dataset_id, table_id, project_id: @default_project_id, start_index: 0, max_result: 100, page_token: nil, schema: nil, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 274

def list_tabledata(dataset_id, table_id, project_id: @default_project_id, start_index: 0, max_result: 100, page_token: nil, schema: nil, &blk)
  schema ||= table(dataset_id, table_id, project_id: project_id).schema.fields
  schema = schema.map{|s| JSON.parse(s.to_json) }

  if blk
    @api.list_table_data(project_id, dataset_id, table_id, max_results: max_result, start_index: start_index, page_token: page_token) do |r, err|
      if r
        r = format_tabledata(r, schema)
      end
      blk.call(r, err)
    end
  else
    r = @api.list_table_data(project_id, dataset_id, table_id, max_results: max_result, start_index: start_index, page_token: page_token)
    format_tabledata(r, schema)
  end
rescue
  process_error($!)
end

#load(dataset_id, table_id, source_uris = nil, schema: nil, delimiter: ",", field_delimiter: delimiter, mode: :append, allow_jagged_rows: false, max_bad_records: 0, ignore_unknown_values: false, allow_quoted_newlines: false, quote: '"', skip_leading_rows: 0, source_format: "CSV", project_id: @default_project_id, job_project_id: @default_project_id, job_id: nil, file: nil, wait: nil, dry_run: false, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 443

def load(dataset_id, table_id, source_uris=nil,
         schema: nil, delimiter: ",", field_delimiter: delimiter, mode: :append,
         allow_jagged_rows: false, max_bad_records: 0,
         ignore_unknown_values: false,
         allow_quoted_newlines: false,
         quote: '"', skip_leading_rows: 0,
         source_format: "CSV",
         project_id: @default_project_id,
         job_project_id: @default_project_id,
         job_id: nil,
         file: nil, wait: nil,
         dry_run: false,
         &blk)
  write_disposition = mode_to_write_disposition(mode)
  source_uris = [source_uris] if source_uris.is_a?(String)
  configuration = Google::Apis::BigqueryV2::JobConfiguration.new({
    load: Google::Apis::BigqueryV2::JobConfigurationLoad.new({
      destination_table: Google::Apis::BigqueryV2::TableReference.new({
        project_id: project_id,
        dataset_id: dataset_id,
        table_id: table_id,
      }),
      write_disposition: write_disposition,
      allow_jagged_rows: normalize_parameter(allow_jagged_rows),
      max_bad_records: max_bad_records,
      ignore_unknown_values: normalize_parameter(ignore_unknown_values),
      source_format: source_format,
    })
  })
  if dry_run
    configuration.dry_run = true
    wait = nil
  end
  if schema
    configuration.load.schema = Google::Apis::BigqueryV2::TableSchema.new({ fields: normalize_schema(schema) })
  end
  if source_format == "CSV"
    configuration.load.field_delimiter = field_delimiter
    configuration.load.allow_quoted_newlines = normalize_parameter(allow_quoted_newlines)
    configuration.load.quote = quote
    configuration.load.skip_leading_rows = skip_leading_rows
  end
  unless file
    configuration.load.source_uris = source_uris
  end
  insert_job(configuration, media: file, wait: wait, job_id: job_id, project_id: job_project_id, &blk)
end

#normalize_parameter(v) ⇒ Object 



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# File 'lib/kura/client.rb', line 40

def normalize_parameter(v)
  case v
  when nil
    nil
  else
    v.to_s
  end
end

#patch_dataset(dataset_id, project_id: @default_project_id, access: nil, description: :na, default_table_expiration_ms: :na, friendly_name: :na, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 139

def patch_dataset(dataset_id, project_id: @default_project_id, access: nil, description: :na, default_table_expiration_ms: :na, friendly_name: :na, &blk)
  obj = Google::Apis::BigqueryV2::Dataset.new(dataset_reference: Google::Apis::BigqueryV2::DatasetReference.new(project_id: project_id, dataset_id: dataset_id))
  obj.access = access if access
  obj.default_table_expiration_ms = default_table_expiration_ms if default_table_expiration_ms != :na
  obj.description = description if description != :na
  obj.friendly_name = friendly_name if friendly_name != :na
  @api.patch_dataset(project_id, dataset_id, obj, &blk)
rescue
  process_error($!)
end

#patch_table(dataset_id, table_id, project_id: @default_project_id, expiration_time: :na, friendly_name: :na, description: :na, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 212

def patch_table(dataset_id, table_id, project_id: @default_project_id, expiration_time: :na, friendly_name: :na, description: :na, &blk)
  if expiration_time != :na and not(expiration_time.nil?)
    expiration_time = (expiration_time.to_f * 1000.0).to_i
  end
  table = Google::Apis::BigqueryV2::Table.new(table_reference: {project_id: project_id, dataset_id: dataset_id, table_id: table_id})
  table.friendly_name = friendly_name if friendly_name != :na
  table.description = description if description != :na
  table.expiration_time = expiration_time if expiration_time != :na
  @api.patch_table(project_id, dataset_id, table_id, table, &blk)
rescue
  process_error($!)
end

#projects(limit: 1000, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 78

def projects(limit: 1000, &blk)
  if blk
    @api.list_projects(max_results: limit) do |result, err|
      result &&= result.projects
      blk.call(result, err)
    end
  else
    result = @api.list_projects(max_results: limit)
    result.projects
  end
rescue
  process_error($!)
end

#query(sql, mode: :truncate, dataset_id: nil, table_id: nil, allow_large_result: true, allow_large_results: allow_large_result, flatten_results: true, priority: "INTERACTIVE", use_query_cache: true, user_defined_function_resources: nil, use_legacy_sql: true, maximum_billing_tier: nil, maximum_bytes_billed: nil, project_id: @default_project_id, job_project_id: @default_project_id, job_id: nil, wait: nil, dry_run: false, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 361

def query(sql, mode: :truncate,
          dataset_id: nil, table_id: nil,
          allow_large_result: true, # for backward compatibility
          allow_large_results: allow_large_result,
          flatten_results: true,
          priority: "INTERACTIVE",
          use_query_cache: true,
          user_defined_function_resources: nil,
          use_legacy_sql: true,
          maximum_billing_tier: nil,
          maximum_bytes_billed: nil,
          project_id: @default_project_id,
          job_project_id: @default_project_id,
          job_id: nil,
          wait: nil,
          dry_run: false,
          &blk)
  configuration = Google::Apis::BigqueryV2::JobConfiguration.new({
    query: Google::Apis::BigqueryV2::JobConfigurationQuery.new({
      query: sql,
      allow_large_results: normalize_parameter(allow_large_results),
      flatten_results: normalize_parameter(flatten_results),
      priority: priority,
      use_query_cache: normalize_parameter(use_query_cache),
      use_legacy_sql: use_legacy_sql,
    })
  })
  if mode
    configuration.query.write_disposition = mode_to_write_disposition(mode)
  end
  if dry_run
    configuration.dry_run = true
    wait = nil
  end
  if maximum_billing_tier
    configuration.query.maximum_billing_tier = maximum_billing_tier
  end
  if maximum_bytes_billed
    configuration.query.maximum_bytes_billed = maximum_bytes_billed
  end
  if dataset_id and table_id
    configuration.query.destination_table = Google::Apis::BigqueryV2::TableReference.new({ project_id: project_id, dataset_id: dataset_id, table_id: table_id })
  end
  if user_defined_function_resources
    configuration.query.user_defined_function_resources = Array(user_defined_function_resources).map do |r|
      r = r.to_s
      if r.start_with?("gs://")
        Google::Apis::BigqueryV2::UserDefinedFunctionResource.new({ resource_uri: r })
      else
        Google::Apis::BigqueryV2::UserDefinedFunctionResource.new({ inline_code: r })
      end
    end
  end
  insert_job(configuration, wait: wait, job_id: job_id, project_id: job_project_id, &blk)
end

#table(dataset_id, table_id, project_id: @default_project_id, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 164

def table(dataset_id, table_id, project_id: @default_project_id, &blk)
  if blk
    @api.get_table(project_id, dataset_id, table_id) do |result, err|
      if err.respond_to?(:status_code) and err.status_code == 404
        result = nil
        err = nil
      end
      blk.call(result, err)
    end
  else
    @api.get_table(project_id, dataset_id, table_id)
  end
rescue
  return nil if $!.respond_to?(:status_code) and $!.status_code == 404
  process_error($!)
end

#tables(dataset_id, project_id: @default_project_id, limit: 1000, page_token: nil, &blk) ⇒ Object 



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# File 'lib/kura/client.rb', line 150

def tables(dataset_id, project_id: @default_project_id, limit: 1000, page_token: nil, &blk)
  if blk
    @api.list_tables(project_id, dataset_id, max_results: limit, page_token: page_token) do |result, err|
      result &&= (result.tables || [])
      blk.call(result, err)
    end
  else
    result = @api.list_tables(project_id, dataset_id, max_results: limit, page_token: page_token)
    result.tables || []
  end
rescue
  process_error($!)
end

#wait_job(job, timeout = 60*10, project_id: @default_project_id) ⇒ Object

Raises:



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# File 'lib/kura/client.rb', line 607

def wait_job(job, timeout=60*10, project_id: @default_project_id)
  case job
  when String
    job_id = job
  when Google::Apis::BigqueryV2::Job
    project_id = job.job_reference.project_id
    job_id = job.job_reference.job_id
  else
    raise TypeError, "Kura::Client#wait_job accept String(job-id) or Google::Apis::BigqueryV2::Job"
  end
  expire = Time.now + timeout
  while expire > Time.now
    j = job(job_id, project_id: project_id)
    if job_finished?(j)
      return j
    end
    if block_given?
      yield j
    end
    sleep 1
  end
  raise Kura::TimeoutError, "wait job timeout"
end