Fix AddProductColumnTypesTest for Java (Azure#644)

* use string instead of timestamp

* enable AddProductColumnTypesTest java

Author: lucyzhang929

docs/SetupGuide_Java.md

@@ -19,6 +19,7 @@
       - [Array](#array)
       - [Single Row](#single-row)
   - [Trigger Binding](#trigger-binding)
+  - [Known Issues](#known-issues)
 
 ## Setup Function App
 
@@ -421,3 +422,9 @@ Note: This tutorial requires that a SQL database is setup as shown in [Create a
 ## Trigger Binding
 
 > Trigger binding support is only available for in-proc C# functions at present.
+
+## Known Issues
+The [Azure Functions Java worker](https://github.com/Azure/azure-functions-java-worker) uses the [GSON library](https://github.com/google/gson) to serialize and deserialize data. Since we are unable to customize the GSON serializer in the Java worker, there are limitations with the default GSON serializer settings.
+- GSON is unable to parse `DATE` and `TIME` values from the SQL table as `java.sql.Date` and `java.sql.Time` types. The current workaround is to use String. Tracking issue: https://github.com/Azure/azure-functions-sql-extension/issues/422.
+- On Linux, `java.sql.Timestamp` type gets serialized with an extra comma, causing the upsertion to fail. The current workaround is to use String. Tracking issue: https://github.com/Azure/azure-functions-sql-extension/issues/521.
+

test/Integration/SqlOutputBindingIntegrationTests.cs

@@ -110,8 +110,6 @@ public void AddProductArrayTest(SupportedLanguages lang)
         /// <param name="lang">The language to run the test against</param>
         [Theory]
         [SqlInlineData()]
-        // Tracking issue here: https://github.com/Azure/azure-functions-sql-extension/issues/521
-        [UnsupportedLanguages(SupportedLanguages.Java)]
         public void AddProductColumnTypesTest(SupportedLanguages lang)
         {
             this.StartFunctionHost(nameof(AddProductColumnTypes), lang, true);

test/Integration/test-java/src/main/java/com/function/AddProductColumnTypes.java

@@ -49,11 +49,11 @@ public HttpResponseMessage run(
             (short)1,
             0.1,
             0.1,
-            new Timestamp(System.currentTimeMillis()),
-            new Timestamp(System.currentTimeMillis()),
-            new Timestamp(System.currentTimeMillis()),
-            new Timestamp(System.currentTimeMillis()),
-            new Timestamp(System.currentTimeMillis()),
+            new Timestamp(System.currentTimeMillis()).toString(),
+            new Timestamp(System.currentTimeMillis()).toString(),
+            new Timestamp(System.currentTimeMillis()).toString(),
+            new Timestamp(System.currentTimeMillis()).toString(),
+            new Timestamp(System.currentTimeMillis()).toString(),
             new Time(System.currentTimeMillis()).toString(),
             "test",
             "test",

test/Integration/test-java/src/main/java/com/function/Common/ProductColumnTypes.java

@@ -7,7 +7,6 @@
 package com.function.Common;
 
 import java.math.BigDecimal;
-import java.sql.Timestamp;
 
 public class ProductColumnTypes {
     private int ProductId;
@@ -21,11 +20,11 @@ public class ProductColumnTypes {
     private short TinyInt;
     private double FloatType;
     private double Real;
-    private Timestamp Date;
-    private Timestamp Datetime;
-    private Timestamp Datetime2;
-    private Timestamp DatetimeOffset;
-    private Timestamp SmallDatetime;
+    private String Date;
+    private String Datetime;
+    private String Datetime2;
+    private String DatetimeOffset;
+    private String SmallDatetime;
     private String Time;
     private String CharType;
     private String Varchar;
@@ -36,8 +35,8 @@ public class ProductColumnTypes {
 
 
     public ProductColumnTypes(int productId, long bigInt, boolean bit, BigDecimal decimalType, BigDecimal money,
-    BigDecimal numeric, short smallInt, BigDecimal smallMoney, short tinyInt, double floatType, double real, Timestamp date,
-    Timestamp datetime, Timestamp datetime2, Timestamp datetimeOffset, Timestamp smallDatetime, String time, String charType,
+    BigDecimal numeric, short smallInt, BigDecimal smallMoney, short tinyInt, double floatType, double real, String date,
+    String datetime, String datetime2, String datetimeOffset, String smallDatetime, String time, String charType,
     String varchar, String nchar, String nvarchar, String binary, String varbinary) {
         ProductId = productId;
         BigInt = bigInt;
@@ -148,43 +147,43 @@ public void setReal(double real) {
         Real = real;
     }
 
-    public Timestamp getDate() {
+    public String getDate() {
         return Date;
     }
 
-    public void setDate(Timestamp date) {
+    public void setDate(String date) {
         Date = date;
     }
 
-    public Timestamp getDatetime() {
+    public String getDatetime() {
         return Datetime;
     }
 
-    public void setDatetime(Timestamp datetime) {
+    public void setDatetime(String datetime) {
         Datetime = datetime;
     }
 
-    public Timestamp getDatetime2() {
+    public String getDatetime2() {
         return Datetime2;
     }
 
-    public void setDatetime2(Timestamp datetime2) {
+    public void setDatetime2(String datetime2) {
         Datetime2 = datetime2;
     }
 
-    public Timestamp getDatetimeOffset() {
+    public String getDatetimeOffset() {
         return DatetimeOffset;
     }
 
-    public void setDatetimeOffset(Timestamp datetimeOffset) {
+    public void setDatetimeOffset(String datetimeOffset) {
         DatetimeOffset = datetimeOffset;
     }
 
-    public Timestamp getSmallDatetime() {
+    public String getSmallDatetime() {
         return SmallDatetime;
     }
 
-    public void setSmallDatetime(Timestamp smallDatetime) {
+    public void setSmallDatetime(String smallDatetime) {
         SmallDatetime = smallDatetime;
     }
 

test/Integration/test-java/src/main/java/com/function/GetProductsColumnTypesSerialization.java

@@ -19,6 +19,7 @@
 import com.microsoft.azure.functions.annotation.HttpTrigger;
 import com.microsoft.azure.functions.sql.annotation.SQLInput;
 
+import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Optional;
 import java.util.logging.Level;
@@ -40,22 +41,22 @@ public HttpResponseMessage run(
                 commandType = "Text",
                 connectionStringSetting = "SqlConnectionString")
                 ProductColumnTypes[] products,
-            ExecutionContext context) throws JsonProcessingException {
+            ExecutionContext context) throws JsonProcessingException, ParseException {
 
         ObjectMapper mapper = new ObjectMapper();
         SimpleDateFormat df = new SimpleDateFormat("yyyy'-'MM'-'dd'T'HH':'mm':'ss'.'SSSXXX");
         mapper.setDateFormat(df);
         for (ProductColumnTypes product : products) {
             // Convert the datetimes to UTC (Java worker returns the datetimes in local timezone)
-            long date = product.getDate().getTime();
-            long datetime = product.getDatetime().getTime();
-            long datetime2 = product.getDatetime2().getTime();
-            long smallDateTime = product.getSmallDatetime().getTime();
-            int offset = Calendar.getInstance().getTimeZone().getOffset(product.getDatetime().getTime());
-            product.setDate(new Timestamp(date - offset));
-            product.setDatetime(new Timestamp(datetime - offset));
-            product.setDatetime2(new Timestamp(datetime2 - offset));
-            product.setSmallDatetime(new Timestamp(smallDateTime - offset));
+            long date = df.parse(product.getDate()).getTime();
+            long datetime = df.parse(product.getDatetime()).getTime();
+            long datetime2 = df.parse(product.getDatetime2()).getTime();
+            long smallDateTime = df.parse(product.getSmallDatetime()).getTime();
+            int offset = Calendar.getInstance().getTimeZone().getOffset(df.parse(product.getDatetime()).getTime());
+            product.setDate(new Timestamp(date - offset).toString());
+            product.setDatetime(new Timestamp(datetime - offset).toString());
+            product.setDatetime2(new Timestamp(datetime2 - offset).toString());
+            product.setSmallDatetime(new Timestamp(smallDateTime - offset).toString());
             context.getLogger().log(Level.INFO, mapper.writeValueAsString(product));
         }
         return request.createResponseBuilder(HttpStatus.OK).header("Content-Type", "application/json").body(mapper.writeValueAsString(products)).build();