First commit

node_modules/mongodb/lib/cmap/wire_protocol/shared.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.isSharded = exports.getReadPreference = void 0;
+const error_1 = require("../../error");
+const read_preference_1 = require("../../read_preference");
+const common_1 = require("../../sdam/common");
+const topology_description_1 = require("../../sdam/topology_description");
+function getReadPreference(options) {
+    // Default to command version of the readPreference
+    let readPreference = options?.readPreference ?? read_preference_1.ReadPreference.primary;
+    // If we have an option readPreference override the command one
+    if (options?.readPreference) {
+        readPreference = options.readPreference;
+    }
+    if (typeof readPreference === 'string') {
+        readPreference = read_preference_1.ReadPreference.fromString(readPreference);
+    }
+    if (!(readPreference instanceof read_preference_1.ReadPreference)) {
+        throw new error_1.MongoInvalidArgumentError('Option "readPreference" must be a ReadPreference instance');
+    }
+    return readPreference;
+}
+exports.getReadPreference = getReadPreference;
+function isSharded(topologyOrServer) {
+    if (topologyOrServer == null) {
+        return false;
+    }
+    if (topologyOrServer.description && topologyOrServer.description.type === common_1.ServerType.Mongos) {
+        return true;
+    }
+    // NOTE: This is incredibly inefficient, and should be removed once command construction
+    //       happens based on `Server` not `Topology`.
+    if (topologyOrServer.description && topologyOrServer.description instanceof topology_description_1.TopologyDescription) {
+        const servers = Array.from(topologyOrServer.description.servers.values());
+        return servers.some((server) => server.type === common_1.ServerType.Mongos);
+    }
+    return false;
+}
+exports.isSharded = isSharded;
+//# sourceMappingURL=shared.js.map