Add Elm language - BETA (#6947)

This is the initial Codegen for Elm 0.18.
Please try it out and provide feedback.

Not yet supported:

* path variables;
* additionalProperties;
* authentication;
* recursive types.

Author: eriktim

bin/elm-petstore.sh

@@ -0,0 +1,31 @@
+#!/bin/sh
+
+SCRIPT="$0"
+
+while [ -h "$SCRIPT" ] ; do
+  ls=`ls -ld "$SCRIPT"`
+  link=`expr "$ls" : '.*-> \(.*\)$'`
+  if expr "$link" : '/.*' > /dev/null; then
+    SCRIPT="$link"
+  else
+    SCRIPT=`dirname "$SCRIPT"`/"$link"
+  fi
+done
+
+if [ ! -d "${APP_DIR}" ]; then
+  APP_DIR=`dirname "$SCRIPT"`/..
+  APP_DIR=`cd "${APP_DIR}"; pwd`
+fi
+
+executable="./modules/swagger-codegen-cli/target/swagger-codegen-cli.jar"
+
+if [ ! -f "$executable" ]
+then
+  mvn clean package
+fi
+
+# if you've executed sbt assembly previously it will use that instead.
+export JAVA_OPTS="${JAVA_OPTS} -XX:MaxPermSize=256M -Xmx1024M -DloggerPath=conf/log4j.properties"
+ags="$@ generate -i modules/swagger-codegen/src/test/resources/2_0/petstore.yaml -l elm -o samples/client/petstore/elm"
+
+java $JAVA_OPTS -jar $executable $ags

bin/windows/elm-petstore.bat

@@ -0,0 +1,10 @@
+set executable=.\modules\swagger-codegen-cli\target\swagger-codegen-cli.jar
+
+If Not Exist %executable% (
+  mvn clean package
+)
+
+REM set JAVA_OPTS=%JAVA_OPTS% -Xmx1024M
+set ags=generate -i modules\swagger-codegen\src\test\resources\2_0\petstore.yaml -l elm -o samples\client\petstore\elm
+
+java %JAVA_OPTS% -jar %executable% %ags%

modules/swagger-codegen/src/main/java/io/swagger/codegen/CodegenProperty.java

@@ -49,6 +49,7 @@ public class CodegenProperty implements Cloneable {
     public Map<String, Object> vendorExtensions;
     public boolean hasValidation; // true if pattern, maximum, etc are set (only used in the mustache template)
     public boolean isInherited;
+    public String discriminatorValue;
     public String nameInCamelCase; // property name in camel case
     // enum name based on the property name, usually use as a prefix (e.g. VAR_NAME) for enum name (e.g. VAR_NAME_VALUE1)
     public String enumName;
@@ -131,6 +132,7 @@ public int hashCode()
         result = prime * result + ((isMapContainer ? 13:31));
         result = prime * result + ((isListContainer  ? 13:31));
         result = prime * result + Objects.hashCode(isInherited);
+        result = prime * result + Objects.hashCode(discriminatorValue);
         result = prime * result + Objects.hashCode(nameInCamelCase);
         result = prime * result + Objects.hashCode(enumName);
         result = prime * result + ((maxItems == null) ? 0 : maxItems.hashCode());
@@ -312,6 +314,9 @@ public boolean equals(Object obj) {
         if (!Objects.equals(this.isInherited, other.isInherited)) {
             return false;
         }
+        if (!Objects.equals(this.discriminatorValue, other.discriminatorValue)) {
+            return false;
+        }
         if (!Objects.equals(this.nameInCamelCase, other.nameInCamelCase)) {
             return false;
         }