static String message()

in hollow/src/main/java/com/netflix/hollow/core/index/FieldPaths.java [281:340]
60 lines of code
11 McCabe index (conditional complexity)

        static String message(
                ErrorKind error, HollowDataset dataset, String rootType, String[] segments,
                List<FieldSegment> fieldSegments, HollowSchema enclosingSchema, int segmentIndex) {
            switch (error) {
                case NOT_BINDABLE:
                    return String.format("Field path \"%s\" cannot be bound to data set %s. " +
                                    "A schema of type named \"%s\" cannot be found for the last segment of the path prefix \"%s\".",
                            toPathString(segments), dataset,
                            getLastTypeName(rootType, fieldSegments), toPathString(segments, segmentIndex + 1));
                case NOT_FOUND:
                    return String.format("Field path \"%s\" not found in data set %s. " +
                                    "A schema of type named \"%s\" does not contain a field for the last segment of the path prefix \"%s\".",
                            toPathString(segments), dataset,
                            enclosingSchema.getName(), toPathString(segments, segmentIndex + 1));
                case NOT_TRAVERSABLE: {
                    if (enclosingSchema.getSchemaType() != HollowSchema.SchemaType.OBJECT) {
                        return String.format("Field path \"%s\" is not traversable in data set %s. " +
                                        "A non-object schema of type named \"%s\" and of schema type %s cannot be traversed for the last segment of the path prefix \"%s\".",
                                toPathString(segments), dataset,
                                enclosingSchema.getName(), enclosingSchema.getSchemaType(),
                                toPathString(segments, segmentIndex + 1));
                    } else {
                        return String.format("Field path \"%s\" is not traversable in data set %s. " +
                                        "An object schema of type named \"%s\" cannot be traversed for the last segment of the path prefix \"%s\". "
                                        +
                                        "The last segment of the path prefix refers to a value (non-reference) field.",
                                toPathString(segments), dataset,
                                enclosingSchema.getName(),
                                toPathString(segments, segmentIndex + 1));
                    }
                }
                case NOT_FULL:
                    return String.format("Field path \"%s\" is not a full path in data set %s. " +
                                    "The last segment of the path is not a value (non-reference) field and refers to a reference field whose schema is of type named \"%s\"",
                            toPathString(segments), dataset,
                            fieldSegments.get(fieldSegments.size() - 1).getTypeName());
                case NOT_EXPANDABLE: {
                    if (enclosingSchema.getSchemaType() == HollowSchema.SchemaType.OBJECT) {
                        HollowObjectSchema objectSchema = (HollowObjectSchema) enclosingSchema;
                        if (objectSchema.numFields() != 1 || objectSchema.getPrimaryKey() == null
                                || objectSchema.getPrimaryKey().numFields() != 1) {
                            return String.format("Field path \"%s\" is not expandable in data set %s. " +
                                            "An object schema of type named \"%s\" cannot be traversed for the last segment of the partially expanded path \"%s\". "
                                            +
                                            "The schema contains more than one field, or has no primary key, or has a primary key with more than one field path.",
                                    toPathString(segments), dataset,
                                    enclosingSchema.getName(),
                                    toPathString(fieldSegments));
                        }
                    }
                    return String.format("Field path \"%s\" is not expandable in data set %s. " +
                                    "A non-object schema of type named \"%s\" and of schema type %s cannot be traversed for the last segment of the partially expanded path \"%s\".",
                            toPathString(segments), dataset,
                            enclosingSchema.getName(), enclosingSchema.getSchemaType(),
                            toPathString(fieldSegments));
                }
                default:
                    throw new InternalError("Cannot reach here");
            }
        }