Examples with DataFetchingEnvironment graphql.schema.DataFetchingEnvironment used on opensource projects

Example 16 with DataFetchingEnvironment

use of graphql.schema.DataFetchingEnvironment in project engine by craftercms.

the class ContentTypeBasedDataFetcher method processSelection.

/**
 * Adds the required filters to the ES query for the given field
 */
protected void processSelection(String path, Selection currentSelection, BoolQueryBuilder query, List<String> queryFieldIncludes, DataFetchingEnvironment env) {
    if (currentSelection instanceof Field) {
        // If the current selection is a field
        Field currentField = (Field) currentSelection;
        // Get the original field name
        String propertyName = getOriginalName(currentField.getName());
        // Build the ES-friendly path
        String fullPath = StringUtils.isEmpty(path) ? propertyName : path + "." + propertyName;
        // If the field has sub selection
        if (Objects.nonNull(currentField.getSelectionSet())) {
            // If the field is a flattened component
            if (fullPath.matches(COMPONENT_INCLUDE_REGEX)) {
                // Include the 'content-type' field to make sure the type can be resolved during runtime
                String contentTypeFieldPath = fullPath + "." + QUERY_FIELD_NAME_CONTENT_TYPE;
                if (!queryFieldIncludes.contains(contentTypeFieldPath)) {
                    queryFieldIncludes.add(contentTypeFieldPath);
                }
            }
            // Process recursively and finish
            currentField.getSelectionSet().getSelections().forEach(selection -> processSelection(fullPath, selection, query, queryFieldIncludes, env));
            return;
        }
        // Add the field to the list
        logger.debug("Adding selected field '{}' to query", fullPath);
        queryFieldIncludes.add(fullPath);
        // Check the filters to build the ES query
        Optional<Argument> arg = currentField.getArguments().stream().filter(a -> a.getName().equals(FILTER_NAME)).findFirst();
        if (arg.isPresent()) {
            logger.debug("Adding filters for field {}", fullPath);
            Value<?> argValue = arg.get().getValue();
            if (argValue instanceof ObjectValue) {
                List<ObjectField> filters = ((ObjectValue) argValue).getObjectFields();
                filters.forEach((filter) -> addFieldFilterFromObjectField(fullPath, filter, query, env));
            } else if (argValue instanceof VariableReference && env.getVariables().containsKey(((VariableReference) argValue).getName())) {
                Map<String, Object> map = (Map<String, Object>) env.getVariables().get(((VariableReference) argValue).getName());
                map.entrySet().forEach(filter -> addFieldFilterFromMapEntry(fullPath, filter, query, env));
            }
        }
    } else if (currentSelection instanceof InlineFragment) {
        // If the current selection is an inline fragment, process recursively
        InlineFragment fragment = (InlineFragment) currentSelection;
        fragment.getSelectionSet().getSelections().forEach(selection -> processSelection(path, selection, query, queryFieldIncludes, env));
    } else if (currentSelection instanceof FragmentSpread) {
        // If the current selection is a fragment spread, find the fragment and process recursively
        FragmentSpread fragmentSpread = (FragmentSpread) currentSelection;
        FragmentDefinition fragmentDefinition = env.getFragmentsByName().get(fragmentSpread.getName());
        fragmentDefinition.getSelectionSet().getSelections().forEach(selection -> processSelection(path, selection, query, queryFieldIncludes, env));
    }
}