[Index template] Fix editor should support mappings types

x-pack/legacy/plugins/index_management/public/app/components/mappings_editor/__jest__/client_integration/helpers/mappings_editor.helpers.ts

@@ -13,4 +13,4 @@ export const setup = (props: any) =>
       wrapComponent: false,
     },
     defaultProps: props,
-  });
+  })();

x-pack/legacy/plugins/index_management/public/app/components/mappings_editor/__jest__/client_integration/mappings_editor.test.tsx

@@ -28,7 +28,7 @@ describe('<MappingsEditor />', () => {
           },
         },
       };
-      const testBed = await setup({ onUpdate: mockOnUpdate, defaultValue })();
+      const testBed = await setup({ onUpdate: mockOnUpdate, defaultValue });
       const { exists } = testBed;
 
       expect(exists('mappingsEditor')).toBe(true);
@@ -44,7 +44,7 @@ describe('<MappingsEditor />', () => {
           },
         },
       };
-      const testBed = await setup({ onUpdate: mockOnUpdate, defaultValue })();
+      const testBed = await setup({ onUpdate: mockOnUpdate, defaultValue });
       const { exists } = testBed;
 
       expect(exists('mappingsEditor')).toBe(true);

x-pack/legacy/plugins/index_management/public/app/components/mappings_editor/components/load_mappings/load_mappings_provider.test.tsx

@@ -0,0 +1,193 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+import React from 'react';
+import { act } from 'react-dom/test-utils';
+
+jest.mock('@elastic/eui', () => ({
+  ...jest.requireActual('@elastic/eui'),
+  // Mocking EuiCodeEditor, which uses React Ace under the hood
+  EuiCodeEditor: (props: any) => (
+    <input
+      data-test-subj="mockCodeEditor"
+      onChange={(syntheticEvent: any) => {
+        props.onChange(syntheticEvent.jsonString);
+      }}
+    />
+  ),
+}));
+
+import { registerTestBed, nextTick, TestBed } from '../../../../../../../../../test_utils';
+import { LoadMappingsProvider } from './load_mappings_provider';
+
+const ComponentToTest = ({ onJson }: { onJson: () => void }) => (
+  <LoadMappingsProvider onJson={onJson}>
+    {openModal => (
+      <button onClick={openModal} data-test-subj="load-json-button">
+        Load JSON
+      </button>
+    )}
+  </LoadMappingsProvider>
+);
+
+const setup = (props: any) =>
+  registerTestBed(ComponentToTest, {
+    memoryRouter: { wrapComponent: false },
+    defaultProps: props,
+  })();
+
+const openModalWithJsonContent = ({ find, component }: TestBed) => async (json: any) => {
+  find('load-json-button').simulate('click');
+  component.update();
+
+  // Set the mappings to load
+  // @ts-ignore
+  await act(async () => {
+    find('mockCodeEditor').simulate('change', {
+      jsonString: JSON.stringify(json),
+    });
+    await nextTick(300); // There is a debounce in the JsonEditor that we need to wait for
+  });
+};
+
+describe('<LoadMappingsProvider />', () => {
+  test('it should forward valid mapping definition', async () => {
+    const mappingsToLoad = {
+      properties: {
+        title: {
+          type: 'text',
+        },
+      },
+    };
+
+    const onJson = jest.fn();
+    const testBed = await setup({ onJson });
+
+    // Open the modal and add the JSON
+    await openModalWithJsonContent(testBed)(mappingsToLoad);
+
+    // Confirm
+    testBed.find('confirmModalConfirmButton').simulate('click');
+
+    const [jsonReturned] = onJson.mock.calls[0];
+    expect(jsonReturned).toEqual({ ...mappingsToLoad, dynamic_templates: [] });
+  });
+
+  test('it should detect custom single-type mappings and return it', async () => {
+    const mappingsToLoadOneType = {
+      myCustomType: {
+        _source: {
+          enabled: true,
+        },
+        properties: {
+          title: {
+            type: 'text',
+          },
+        },
+        dynamic_templates: [],
+      },
+    };
+
+    const onJson = jest.fn();
+    const testBed = await setup({ onJson });
+
+    await openModalWithJsonContent(testBed)(mappingsToLoadOneType);
+
+    // Confirm
+    testBed.find('confirmModalConfirmButton').simulate('click');
+
+    const [jsonReturned] = onJson.mock.calls[0];
+    expect(jsonReturned).toEqual(mappingsToLoadOneType);
+  });
+
+  test('it should detect multi-type mappings and return raw without validating', async () => {
+    const mappingsToLoadMultiType = {
+      myCustomType1: {
+        wrongParameter: 'wont be validated neither stripped out',
+        properties: {
+          title: {
+            type: 'wrongType',
+          },
+        },
+        dynamic_templates: [],
+      },
+      myCustomType2: {
+        properties: {
+          title: {
+            type: 'text',
+          },
+        },
+        dynamic_templates: [],
+      },
+    };
+
+    const onJson = jest.fn();
+    const testBed = await setup({ onJson });
+
+    await openModalWithJsonContent(testBed)(mappingsToLoadMultiType);
+
+    // Confirm
+    testBed.find('confirmModalConfirmButton').simulate('click');
+
+    const [jsonReturned] = onJson.mock.calls[0];
+    expect(jsonReturned).toEqual(mappingsToLoadMultiType);
+  });
+
+  test('it should detect single-type mappings under a valid mappings definition parameter', async () => {
+    const mappingsToLoadOneType = {
+      // Custom type name _is_ a valid mappings definition parameter
+      _source: {
+        _source: {
+          enabled: true,
+        },
+        properties: {
+          title: {
+            type: 'text',
+          },
+        },
+        dynamic_templates: [],
+      },
+    };
+
+    const onJson = jest.fn();
+    const testBed = await setup({ onJson });
+
+    await openModalWithJsonContent(testBed)(mappingsToLoadOneType);
+
+    // Confirm
+    testBed.find('confirmModalConfirmButton').simulate('click');
+
+    const [jsonReturned] = onJson.mock.calls[0];
+    expect(jsonReturned).toEqual(mappingsToLoadOneType);
+  });
+
+  test('should treat "properties" as properties definition and **not** as a cutom type', async () => {
+    const mappingsToLoadOneType = {
+      // Custom type name _is_ a valid mappings definition parameter
+      properties: {
+        _source: {
+          enabled: true,
+        },
+        properties: {
+          title: {
+            type: 'text',
+          },
+        },
+        dynamic_templates: [],
+      },
+    };
+
+    const onJson = jest.fn();
+    const testBed = await setup({ onJson });
+
+    await openModalWithJsonContent(testBed)(mappingsToLoadOneType);
+
+    // Confirm
+    testBed.find('confirmModalConfirmButton').simulate('click');
+
+    // Make sure our handler hasn't been called
+    expect(onJson.mock.calls.length).toBe(0);
+  });
+});

x-pack/legacy/plugins/index_management/public/app/components/mappings_editor/components/load_mappings/load_mappings_provider.tsx

@@ -5,6 +5,7 @@
  */
 
 import React, { useState, useRef } from 'react';
+import { isPlainObject } from 'lodash';
 import { i18n } from '@kbn/i18n';
 import { FormattedMessage } from '@kbn/i18n/react';
 import {
@@ -17,15 +18,15 @@ import {
 } from '@elastic/eui';
 
 import { JsonEditor, OnJsonEditorUpdateHandler } from '../../shared_imports';
-import { validateMappings, MappingsValidationError } from '../../lib';
+import { validateMappings, MappingsValidationError, VALID_MAPPINGS_PARAMETERS } from '../../lib';
 
 const MAX_ERRORS_TO_DISPLAY = 1;
 
 type OpenJsonModalFunc = () => void;
 
 interface Props {
   onJson(json: { [key: string]: any }): void;
-  children: (deleteProperty: OpenJsonModalFunc) => React.ReactNode;
+  children: (openModal: OpenJsonModalFunc) => React.ReactNode;
 }
 
 interface State {
@@ -126,10 +127,13 @@ const getErrorMessage = (error: MappingsValidationError) => {
   }
 };
 
+const areAllObjectKeysValidParameters = (obj: { [key: string]: any }) =>
+  Object.keys(obj).every(key => VALID_MAPPINGS_PARAMETERS.includes(key));
+
 export const LoadMappingsProvider = ({ onJson, children }: Props) => {
   const [state, setState] = useState<State>({ isModalOpen: false });
   const [totalErrorsToDisplay, setTotalErrorsToDisplay] = useState<number>(MAX_ERRORS_TO_DISPLAY);
-  const jsonContent = useRef<Parameters<OnJsonEditorUpdateHandler>['0'] | undefined>();
+  const jsonContent = useRef<Parameters<OnJsonEditorUpdateHandler>['0'] | undefined>(undefined);
   const view: ModalView =
     state.json !== undefined && state.errors !== undefined ? 'validationResult' : 'json';
   const i18nTexts = getTexts(view, state.errors?.length);
@@ -146,6 +150,44 @@ export const LoadMappingsProvider = ({ onJson, children }: Props) => {
     setState({ isModalOpen: false });
   };
 
+  const getMappingsMetadata = (unparsed: {
+    [key: string]: any;
+  }): { customType?: string; isMultiTypeMappings: boolean } => {
+    let hasCustomType = false;
+    let isMultiTypeMappings = false;
+    let customType: string | undefined;
+
+    /**
+     * We need to check if there are single or multi-types mappings declared, for that we will check for the following:
+     *
+     * - Are **all** root level keys valid parameter for the mappings definition. If not, and all keys are plain object, we assume we have multi-type mappings
+     * - If there are more than two types, return "as is" as the UI does not support more than 1 type and will display a warning callout
+     * - If there is only 1 type, validate the mappings definition and return it wrapped inside the the custom type
+     */
+    const areAllKeysValid = areAllObjectKeysValidParameters(unparsed);
+    const areAllValuesPlainObjects = Object.values(unparsed).every(isPlainObject);
+    const areAllValuesObjKeysValidParameterName =
+      areAllValuesPlainObjects && Object.values(unparsed).every(areAllObjectKeysValidParameters);
+
+    if (!areAllKeysValid && areAllValuesPlainObjects) {
+      hasCustomType = true;
+      isMultiTypeMappings = Object.keys(unparsed).length > 1;
+    }
+    // If all root level keys are *valid* parameters BUT they are all plain objects which *also* have ALL valid mappings config parameter
+    // we can assume that they are custom types whose name matches a mappings configuration parameter.
+    // This is to handle the case where a custom type would be for example "dynamic" which is a mappings configuration parameter.
+    else if (areAllKeysValid && areAllValuesPlainObjects && areAllValuesObjKeysValidParameterName) {
+      hasCustomType = true;
+      isMultiTypeMappings = Object.keys(unparsed).length > 1;
+    }
+
+    if (hasCustomType && !isMultiTypeMappings) {
+      customType = Object.keys(unparsed)[0];
+    }
+
+    return { isMultiTypeMappings, customType };
+  };
+
   const loadJson = () => {
     if (jsonContent.current === undefined) {
       // No changes have been made in the JSON, this is probably a "reset()" for the user
@@ -159,14 +201,41 @@ export const LoadMappingsProvider = ({ onJson, children }: Props) => {
     if (isValidJson) {
       // Parse and validate the JSON to make sure it won't break the UI
       const unparsed = jsonContent.current.data.format();
-      const { value: parsed, errors } = validateMappings(unparsed);
+
+      if (Object.keys(unparsed).length === 0) {
+        // Empty object...exit early
+        onJson(unparsed);
+        closeModal();
+        return;
+      }
+
+      let mappingsToValidate = unparsed;
+      const { isMultiTypeMappings, customType } = getMappingsMetadata(unparsed);
+
+      if (isMultiTypeMappings) {
+        // Exit early, the UI will show a warning
+        onJson(unparsed);
+        closeModal();
+        return;
+      }
+
+      // Custom type can't be "properties", ES will not treat it as such
+      // as it is reserved for fields definition
+      if (customType !== undefined && customType !== 'properties') {
+        mappingsToValidate = unparsed[customType];
+      }
+
+      const { value: parsed, errors } = validateMappings(mappingsToValidate);
+
+      // Wrap the mappings definition with custom type if one was provided.
+      const parsedWithType = customType !== undefined ? { [customType]: parsed } : parsed;
 
       if (errors) {
-        setState({ isModalOpen: true, json: { unparsed, parsed }, errors });
+        setState({ isModalOpen: true, json: { unparsed, parsed: parsedWithType }, errors });
         return;
       }
 
-      onJson(parsed);
+      onJson(parsedWithType);
       closeModal();
     }
   };

x-pack/legacy/plugins/index_management/public/app/components/mappings_editor/components/multiple_mappings_warning.tsx

@@ -14,7 +14,7 @@ import { documentationService } from '../../../services/documentation';
 export const MultipleMappingsWarning = () => (
   <EuiCallOut
     title={i18n.translate('xpack.idxMgmt.mappingsEditor.mappingTypesDetectedCallOutTitle', {
-      defaultMessage: 'Mapping types detected',
+      defaultMessage: 'Multiple mapping types detected',
     })}
     iconType="alert"
     color="warning"
@@ -23,7 +23,7 @@ export const MultipleMappingsWarning = () => (
     <p>
       <FormattedMessage
         id="xpack.idxMgmt.mappingsEditor.mappingTypesDetectedCallOutDescription"
-        defaultMessage="The mappings for this template uses types, which have been removed. {docsLink}"
+        defaultMessage="The mappings for this template uses multiple types, which are not supported. {docsLink}"
         values={{
           docsLink: (
             <EuiLink href={documentationService.getAlternativeToMappingTypesLink()} target="_blank">

x-pack/legacy/plugins/index_management/public/app/components/mappings_editor/index.ts

@@ -11,3 +11,5 @@ export * from './mappings_editor';
 export * from './components/load_mappings';
 
 export { OnUpdateHandler, Types } from './mappings_state';
+
+export { doMappingsHaveType } from './lib';