[Java] Add back byte array enhancement (#7546)

* add back byte array enhanceement

* add okio dependency to java rest assured api client

modules/swagger-codegen/src/main/resources/Java/JSON.mustache

@@ -26,6 +26,7 @@ import org.threeten.bp.format.DateTimeFormatter;
 {{/threetenbp}}
 
 import {{modelPackage}}.*;
+import okio.ByteString;
 
 import java.io.IOException;
 import java.io.StringReader;
@@ -55,6 +56,7 @@ public class JSON {
     private OffsetDateTimeTypeAdapter offsetDateTimeTypeAdapter = new OffsetDateTimeTypeAdapter();
     private LocalDateTypeAdapter localDateTypeAdapter = new LocalDateTypeAdapter();
     {{/jsr310}}
+    private ByteArrayAdapter byteArrayAdapter = new ByteArrayAdapter();
 
     public static GsonBuilder createGson() {
         GsonFireBuilder fireBuilder = new GsonFireBuilder()
@@ -105,6 +107,7 @@ public class JSON {
             .registerTypeAdapter(OffsetDateTime.class, offsetDateTimeTypeAdapter)
             .registerTypeAdapter(LocalDate.class, localDateTypeAdapter)
             {{/jsr310}}
+            .registerTypeAdapter(byte[].class, byteArrayAdapter)
             .create();
     }
 
@@ -171,6 +174,34 @@ public class JSON {
         }
     }
 
+    /**
+     * Gson TypeAdapter for Byte Array type
+     */
+    public class ByteArrayAdapter extends TypeAdapter<byte[]> {
+
+        @Override
+        public void write(JsonWriter out, byte[] value) throws IOException {
+            if (value == null) {
+                out.nullValue();
+            } else {
+                out.value(ByteString.of(value).base64());
+            }
+        }
+
+        @Override
+        public byte[] read(JsonReader in) throws IOException {
+            switch (in.peek()) {
+                case NULL:
+                    in.nextNull();
+                    return null;
+                default:
+                    String bytesAsBase64 = in.nextString();
+                    ByteString byteString = ByteString.decodeBase64(bytesAsBase64);
+                    return byteString.toByteArray();
+            }
+        }
+    }
+
     {{#joda}}
     /**
      * Gson TypeAdapter for Joda DateTime type

modules/swagger-codegen/src/main/resources/Java/libraries/rest-assured/build.gradle.mustache

@@ -105,6 +105,7 @@ ext {
 {{#threetenbp}}
     threetenbp_version = "1.3.5"
 {{/threetenbp}}
+    okio_version = "1.13.0"
 }
 
 dependencies {
@@ -118,5 +119,6 @@ dependencies {
 {{#threetenbp}}
     compile "org.threeten:threetenbp:$threetenbp_version"
 {{/threetenbp}}
+    compile "com.squareup.okio:okio:$okio_version"
     testCompile "junit:junit:$junit_version"
 }

modules/swagger-codegen/src/main/resources/Java/libraries/rest-assured/build.sbt.mustache

@@ -10,7 +10,7 @@ lazy val root = (project in file(".")).
     resolvers += Resolver.mavenLocal,
     libraryDependencies ++= Seq(
       "io.swagger" % "swagger-annotations" % "1.5.15",
-      "io.rest-assured" % "scala-support" % "3.0.6"
+      "io.rest-assured" % "scala-support" % "3.0.6",
       "com.google.code.gson" % "gson" % "2.6.1",
       "io.gsonfire" % "gson-fire" % "1.8.2" % "compile",
 {{#joda}}
@@ -19,6 +19,7 @@ lazy val root = (project in file(".")).
 {{#threetenbp}}
       "org.threeten" % "threetenbp" % "1.3.5" % "compile",
 {{/threetenbp}}
+      "com.squareup.okio" % "okio" % "1.13.0" % "compile",
       "junit" % "junit" % "4.12" % "test",
       "com.novocode" % "junit-interface" % "0.10" % "test"
     )

modules/swagger-codegen/src/main/resources/Java/libraries/rest-assured/pom.mustache

@@ -212,24 +212,29 @@
             <version>${gson-version}</version>
         </dependency>
         {{#joda}}
-            <dependency>
-                <groupId>joda-time</groupId>
-                <artifactId>joda-time</artifactId>
-                <version>${jodatime-version}</version>
-            </dependency>
+        <dependency>
+            <groupId>joda-time</groupId>
+            <artifactId>joda-time</artifactId>
+            <version>${jodatime-version}</version>
+        </dependency>
         {{/joda}}
         {{#threetenbp}}
-            <dependency>
-                <groupId>org.threeten</groupId>
-                <artifactId>threetenbp</artifactId>
-                <version>${threetenbp-version}</version>
-            </dependency>
+        <dependency>
+            <groupId>org.threeten</groupId>
+            <artifactId>threetenbp</artifactId>
+            <version>${threetenbp-version}</version>
+        </dependency>
         {{/threetenbp}}
         <dependency>
             <groupId>io.gsonfire</groupId>
             <artifactId>gson-fire</artifactId>
             <version>${gson-fire-version}</version>
         </dependency>
+		<dependency>
+		    <groupId>com.squareup.okio</groupId>
+		    <artifactId>okio</artifactId>
+		<version>${okio-version}</version>
+		</dependency>
         <!-- test dependencies -->
         <dependency>
             <groupId>junit</groupId>
@@ -251,6 +256,7 @@
         {{#threetenbp}}
         <threetenbp-version>1.3.5</threetenbp-version>
         {{/threetenbp}}
+        <okio-version>1.13.0</okio-version>
         <junit-version>4.12</junit-version>
     </properties>
 </project>

samples/client/petstore/java/rest-assured/build.gradle

@@ -100,6 +100,7 @@ ext {
     gson_version = "2.6.1"
     gson_fire_version = "1.8.2"
     threetenbp_version = "1.3.5"
+    okio_version = "1.13.0"
 }
 
 dependencies {
@@ -107,5 +108,6 @@ dependencies {
     compile "io.rest-assured:scala-support:$rest_assured_version"
     compile "io.gsonfire:gson-fire:$gson_fire_version"
     compile "org.threeten:threetenbp:$threetenbp_version"
+    compile "com.squareup.okio:okio:$okio_version"
     testCompile "junit:junit:$junit_version"
 }

samples/client/petstore/java/rest-assured/build.sbt

@@ -10,10 +10,11 @@ lazy val root = (project in file(".")).
     resolvers += Resolver.mavenLocal,
     libraryDependencies ++= Seq(
       "io.swagger" % "swagger-annotations" % "1.5.15",
-      "io.rest-assured" % "scala-support" % "3.0.6"
+      "io.rest-assured" % "scala-support" % "3.0.6",
       "com.google.code.gson" % "gson" % "2.6.1",
       "io.gsonfire" % "gson-fire" % "1.8.2" % "compile",
       "org.threeten" % "threetenbp" % "1.3.5" % "compile",
+      "com.squareup.okio" % "okio" % "1.13.0" % "compile",
       "junit" % "junit" % "4.12" % "test",
       "com.novocode" % "junit-interface" % "0.10" % "test"
     )

samples/client/petstore/java/rest-assured/pom.xml

@@ -211,16 +211,21 @@
             <artifactId>gson</artifactId>
             <version>${gson-version}</version>
         </dependency>
-            <dependency>
-                <groupId>org.threeten</groupId>
-                <artifactId>threetenbp</artifactId>
-                <version>${threetenbp-version}</version>
-            </dependency>
+        <dependency>
+            <groupId>org.threeten</groupId>
+            <artifactId>threetenbp</artifactId>
+            <version>${threetenbp-version}</version>
+        </dependency>
         <dependency>
             <groupId>io.gsonfire</groupId>
             <artifactId>gson-fire</artifactId>
             <version>${gson-fire-version}</version>
         </dependency>
+		<dependency>
+		    <groupId>com.squareup.okio</groupId>
+		    <artifactId>okio</artifactId>
+		<version>${okio-version}</version>
+		</dependency>
         <!-- test dependencies -->
         <dependency>
             <groupId>junit</groupId>
@@ -237,6 +242,7 @@
         <gson-fire-version>1.8.2</gson-fire-version>
         <maven-plugin-version>1.0.0</maven-plugin-version>
         <threetenbp-version>1.3.5</threetenbp-version>
+        <okio-version>1.13.0</okio-version>
         <junit-version>4.12</junit-version>
     </properties>
 </project>

samples/client/petstore/java/rest-assured/src/main/java/io/swagger/client/JSON.java

@@ -28,6 +28,7 @@ import org.threeten.bp.OffsetDateTime;
 import org.threeten.bp.format.DateTimeFormatter;
 
 import io.swagger.client.model.*;
+import okio.ByteString;
 
 import java.io.IOException;
 import java.io.StringReader;
@@ -46,6 +47,7 @@ public class JSON {
     private SqlDateTypeAdapter sqlDateTypeAdapter = new SqlDateTypeAdapter();
     private OffsetDateTimeTypeAdapter offsetDateTimeTypeAdapter = new OffsetDateTimeTypeAdapter();
     private LocalDateTypeAdapter localDateTypeAdapter = new LocalDateTypeAdapter();
+    private ByteArrayAdapter byteArrayAdapter = new ByteArrayAdapter();
 
     public static GsonBuilder createGson() {
         GsonFireBuilder fireBuilder = new GsonFireBuilder()
@@ -87,6 +89,7 @@ public class JSON {
             .registerTypeAdapter(java.sql.Date.class, sqlDateTypeAdapter)
             .registerTypeAdapter(OffsetDateTime.class, offsetDateTimeTypeAdapter)
             .registerTypeAdapter(LocalDate.class, localDateTypeAdapter)
+            .registerTypeAdapter(byte[].class, byteArrayAdapter)
             .create();
     }
 
@@ -153,6 +156,34 @@ public class JSON {
         }
     }
 
+    /**
+     * Gson TypeAdapter for Byte Array type
+     */
+    public class ByteArrayAdapter extends TypeAdapter<byte[]> {
+
+        @Override
+        public void write(JsonWriter out, byte[] value) throws IOException {
+            if (value == null) {
+                out.nullValue();
+            } else {
+                out.value(ByteString.of(value).base64());
+            }
+        }
+
+        @Override
+        public byte[] read(JsonReader in) throws IOException {
+            switch (in.peek()) {
+                case NULL:
+                    in.nextNull();
+                    return null;
+                default:
+                    String bytesAsBase64 = in.nextString();
+                    ByteString byteString = ByteString.decodeBase64(bytesAsBase64);
+                    return byteString.toByteArray();
+            }
+        }
+    }
+
     /**
      * Gson TypeAdapter for JSR310 OffsetDateTime type
      */