Parser for each attribute type

Signed-off-by: Fabio José <fabiojose@gmail.com>

lib/bindings/http/receiver_binary_0_2.js

@@ -1,4 +1,6 @@
-const Constants = require("./constants.js");
+const Constants  = require("./constants.js");
+const Cloudevent = require("../../cloudevent.js");
+const Spec02     = require("../../specs/spec_0_2.js");
 
 const required_headers = [];
 required_headers.push(Constants.BINARY_HEADERS_02.TYPE);
@@ -7,11 +9,26 @@ required_headers.push(Constants.BINARY_HEADERS_02.SOURCE);
 required_headers.push(Constants.BINARY_HEADERS_02.ID);
 
 const setter_reflections = {};
-setter_reflections[Constants.BINARY_HEADERS_02.TYPE] = "type";
-setter_reflections[Constants.BINARY_HEADERS_02.SOURCE] = "source";
-setter_reflections[Constants.BINARY_HEADERS_02.ID] = "id";
-setter_reflections[Constants.BINARY_HEADERS_02.TIME] = "time";
-setter_reflections[Constants.BINARY_HEADERS_02.SCHEMA_URL] = "schemaurl";
+setter_reflections[Constants.BINARY_HEADERS_02.TYPE] = {
+  name : "type",
+  parser : (v) => v
+};
+setter_reflections[Constants.BINARY_HEADERS_02.SOURCE] = {
+  name : "source",
+  parser: (v) => v
+};
+setter_reflections[Constants.BINARY_HEADERS_02.ID] = {
+  name : "id",
+  parser : (v) => v
+};
+setter_reflections[Constants.BINARY_HEADERS_02.TIME] = {
+  name : "time",
+  parser : (v) => new Date(Date.parse(v))
+};
+setter_reflections[Constants.BINARY_HEADERS_02.SCHEMA_URL] = {
+  name: "schemaurl",
+  parser: (v) => v
+};
 
 function validate_args(payload, attributes) {
   if(!payload){
@@ -42,15 +59,34 @@ Receiver.prototype.check = function(payload, headers) {
     }
   }
 
+  if(headers[Constants.BINARY_HEADERS_02.SPEC_VERSION] !== "0.2"){
+    throw {message: "invalid spec version",
+              errors: [headers[Constants.BINARY_HEADERS_02.SPEC_VERSION]]};
+  }
+
   // No erros! Its contains the minimum required attributes
 }
 
 Receiver.prototype.parse = function(payload, headers) {
   this.check(payload, headers);
 
-  for(setter in setter_reflections) {
-
+  var cloudevent = new Cloudevent(Spec02);
+  for(header in setter_reflections) {
+    // dont worry, check() have seen what was required or not
+    if(headers[header]){
+      var setter_name = setter_reflections[header].name;
+      var parser_fn   = setter_reflections[header].parser;
+      console.log(typeof parser_fn(headers[header]));
+      // invoke the setter function
+      cloudevent[setter_name](parser_fn(headers[header]));
+    }
   }
+
+  // Checks the event spec
+  cloudevent.format();
+
+  // return the result
+  return cloudevent;
 }
 
 module.exports = Receiver;

test/bindings/http/receiver_binary_0_2_tests.js

@@ -93,7 +93,7 @@ describe("HTTP Transport Binding Binary Receiver 0.2", () => {
         .to.throw("header 'ce-id' not found");
     });
 
-    it("No error when all required headers are in place", () => {
+    it("Throw error when spec is not 0.2", () => {
       // setup
       var payload = {};
       var attributes = {
@@ -103,6 +103,21 @@ describe("HTTP Transport Binding Binary Receiver 0.2", () => {
         "ce-id"          : "id"
       };
 
+      // act and assert
+      expect(receiver.check.bind(receiver, payload, attributes))
+        .to.throw("invalid spec version");
+    });
+
+    it("No error when all required headers are in place", () => {
+      // setup
+      var payload = {};
+      var attributes = {
+        "ce-type"        : "type",
+        "ce-specversion" : "0.2",
+        "ce-source"      : "source",
+        "ce-id"          : "id"
+      };
+
       // act and assert
       expect(receiver.check.bind(receiver, payload, attributes))
         .to.not.throw();
@@ -110,6 +125,45 @@ describe("HTTP Transport Binding Binary Receiver 0.2", () => {
   });
 
   describe("Parse", () => {
+    it("Cloudevent contains 'type'", () => {
+      // setup
+      var payload = {
+        "data" : "dataString"
+      };
+      var attributes = {
+        "ce-type"        : "type",
+        "ce-specversion" : "0.2",
+        "ce-source"      : "source",
+        "ce-id"          : "id",
+        "ce-time"        : "2019-06-16T11:42:00Z",
+        "ce-schemaurl"   : "http://schema.registry/v1"
+      };
 
+      // act
+      var actual = receiver.parse(payload, attributes);
+
+      // assert
+    });
+
+    it("No error when all attributes are in place", () => {
+      // setup
+      var payload = {
+        "data" : "dataString"
+      };
+      var attributes = {
+        "ce-type"        : "type",
+        "ce-specversion" : "0.2",
+        "ce-source"      : "source",
+        "ce-id"          : "id"
+      };
+
+      // act
+      var actual = receiver.parse(payload, attributes);
+
+      // assert
+      expect(actual)
+          .to.be.an("object");
+
+    });
   });
 });