Initial Commit

node_modules/@grpc/grpc-js/build/src/load-balancing-config.js

@@ -0,0 +1,84 @@
+"use strict";
+/*
+ * Copyright 2019 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+/* In these functions we assume the input came from a JSON object. Therefore we
+ * expect that the prototype is uninteresting and that `in` can be used
+ * effectively */
+function validateXdsConfig(xds) {
+    if (!('balancerName' in xds) || typeof xds.balancerName !== 'string') {
+        throw new Error('Invalid xds config: invalid balancerName');
+    }
+    const xdsConfig = {
+        balancerName: xds.balancerName,
+        childPolicy: [],
+        fallbackPolicy: [],
+    };
+    if ('childPolicy' in xds) {
+        if (!Array.isArray(xds.childPolicy)) {
+            throw new Error('Invalid xds config: invalid childPolicy');
+        }
+        for (const policy of xds.childPolicy) {
+            xdsConfig.childPolicy.push(validateConfig(policy));
+        }
+    }
+    if ('fallbackPolicy' in xds) {
+        if (!Array.isArray(xds.fallbackPolicy)) {
+            throw new Error('Invalid xds config: invalid fallbackPolicy');
+        }
+        for (const policy of xds.fallbackPolicy) {
+            xdsConfig.fallbackPolicy.push(validateConfig(policy));
+        }
+    }
+    return xdsConfig;
+}
+function validateGrpcLbConfig(grpclb) {
+    const grpcLbConfig = {
+        childPolicy: [],
+    };
+    if ('childPolicy' in grpclb) {
+        if (!Array.isArray(grpclb.childPolicy)) {
+            throw new Error('Invalid xds config: invalid childPolicy');
+        }
+        for (const policy of grpclb.childPolicy) {
+            grpcLbConfig.childPolicy.push(validateConfig(policy));
+        }
+    }
+    return grpcLbConfig;
+}
+function validateConfig(obj) {
+    if ('round_robin' in obj) {
+        if ('xds' in obj || 'grpclb' in obj) {
+            throw new Error('Multiple load balancing policies configured');
+        }
+        if (obj['round_robin'] instanceof Object) {
+            return { round_robin: {} };
+        }
+    }
+    if ('xds' in obj) {
+        if ('grpclb' in obj) {
+            throw new Error('Multiple load balancing policies configured');
+        }
+        return { xds: validateXdsConfig(obj.xds) };
+    }
+    if ('grpclb' in obj) {
+        return { grpclb: validateGrpcLbConfig(obj.grpclb) };
+    }
+    throw new Error('No recognized load balancing policy configured');
+}
+exports.validateConfig = validateConfig;
+//# sourceMappingURL=load-balancing-config.js.map