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: / usr / share / grafana / public / app / plugins / datasource / loki / configuration /
Filename : QuerySettings.tsx
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import React from 'react';

import { ConfigSubSection } from '@grafana/experimental';
import { config } from '@grafana/runtime';
import { Badge, LegacyForms } from '@grafana/ui';
import { ConfigDescriptionLink } from 'app/core/components/ConfigDescriptionLink';

const { FormField } = LegacyForms;

type Props = {
  maxLines: string;
  onMaxLinedChange: (value: string) => void;
  predefinedOperations: string;
  onPredefinedOperationsChange: (value: string) => void;
};

export const QuerySettings = (props: Props) => {
  const { maxLines, onMaxLinedChange, predefinedOperations, onPredefinedOperationsChange } = props;
  return (
    <ConfigSubSection
      title="Queries"
      description={
        <ConfigDescriptionLink
          description="Additional options to customize your querying experience. "
          suffix="loki/#configure-the-data-source"
          feature="query settings"
        />
      }
    >
      <div className="gf-form-inline">
        <div className="gf-form">
          <FormField
            label="Maximum lines"
            labelWidth={11}
            inputWidth={20}
            inputEl={
              <input
                type="number"
                className="gf-form-input width-8 gf-form-input--has-help-icon"
                value={maxLines}
                onChange={(event) => onMaxLinedChange(event.currentTarget.value)}
                spellCheck={false}
                placeholder="1000"
              />
            }
            tooltip={
              <>
                Loki queries must contain a limit of the maximum number of lines returned (default: 1000). Increase this
                limit to have a bigger result set for ad-hoc analysis. Decrease this limit if your browser becomes
                sluggish when displaying the log results.
              </>
            }
          />
        </div>
      </div>
      {config.featureToggles.lokiPredefinedOperations && (
        <div className="gf-form-inline">
          <div className="gf-form">
            <FormField
              label="Predefined operations"
              labelWidth={11}
              inputEl={
                <input
                  type="string"
                  className="gf-form-input width-20 gf-form-input--has-help-icon"
                  value={predefinedOperations}
                  onChange={(event) => onPredefinedOperationsChange(event.currentTarget.value)}
                  spellCheck={false}
                  placeholder="| unpack | line_format"
                />
              }
              tooltip={
                <div>
                  {
                    'Predefined operations are used as an initial state for your queries. They are useful, if you want to unpack, parse or format all log lines. Currently we support only log operations starting with |. For example: | unpack | line_format "{{.message}}".'
                  }
                </div>
              }
            />
            <Badge
              text="Experimental"
              color="orange"
              icon="exclamation-triangle"
              tooltip="Predefined operations is an experimental feature that may change in the future."
            />
          </div>
        </div>
      )}
    </ConfigSubSection>
  );
};