add perl support - api template, bin, codegen

modules/swagger-codegen/src/main/java/com/wordnik/swagger/codegen/languages/PerlClientCodegen.java

@@ -0,0 +1,152 @@
+package com.wordnik.swagger.codegen.languages;
+
+import com.wordnik.swagger.codegen.*;
+import com.wordnik.swagger.util.Json;
+import com.wordnik.swagger.models.properties.*;
+
+import java.util.*;
+import java.io.File;
+
+public class PerlClientCodegen extends DefaultCodegen implements CodegenConfig {
+  protected String invokerPackage = "com.wordnik.client";
+  protected String groupId = "com.wordnik";
+  protected String artifactId = "swagger-client";
+  protected String artifactVersion = "1.0.0";
+
+  public CodegenType getTag() {
+    return CodegenType.CLIENT;
+  }
+
+  public String getName() {
+    return "perl";
+  }
+
+  public String getHelp() {
+    return "Generates a Perl client library.";
+  }
+
+  public PerlClientCodegen() {
+    super();
+    modelPackage = "Model";
+    outputFolder = "generated-code/perl";
+    modelTemplateFiles.put("model.mustache", ".pm");
+    apiTemplateFiles.put("api.mustache", ".pm");
+    templateDir = "perl";
+
+    typeMapping.clear();
+    languageSpecificPrimitives.clear();
+
+    reservedWords = new HashSet<String> (
+      Arrays.asList(
+        "__halt_compiler", "abstract", "and", "array", "as", "break", "callable", "case", "catch", "class", "clone", "const", "continue", "declare", "default", "die", "do", "echo", "else", "elseif", "empty", "enddeclare", "endfor", "endforeach", "endif", "endswitch", "endwhile", "eval", "exit", "extends", "final", "for", "foreach", "function", "global", "goto", "if", "implements", "include", "include_once", "instanceof", "insteadof", "interface", "isset", "list", "namespace", "new", "or", "print", "private", "protected", "public", "require", "require_once", "return", "static", "switch", "throw", "trait", "try", "unset", "use", "var", "while", "xor")
+    );
+
+    additionalProperties.put("invokerPackage", invokerPackage);
+    additionalProperties.put("groupId", groupId);
+    additionalProperties.put("artifactId", artifactId);
+    additionalProperties.put("artifactVersion", artifactVersion);
+
+    languageSpecificPrimitives.add("int");
+    languageSpecificPrimitives.add("array");
+    languageSpecificPrimitives.add("map");
+    languageSpecificPrimitives.add("string");
+    languageSpecificPrimitives.add("DateTime");
+
+    typeMapping.put("long", "int");
+    typeMapping.put("integer", "int");
+    typeMapping.put("Array", "array");
+    typeMapping.put("String", "string");
+    typeMapping.put("List", "array");
+    typeMapping.put("map", "map");
+
+    supportingFiles.add(new SupportingFile("Swagger.mustache", "", "Swagger.pl"));
+  }
+
+  @Override
+  public String escapeReservedWord(String name) {
+    return "_" + name;
+  }
+  
+  @Override
+  public String apiFileFolder() {
+    return outputFolder + "/WWW/Swagger/" + apiPackage().replace('.', File.separatorChar);
+  }
+
+  public String modelFileFolder() {
+    return outputFolder + "/WWW/Swagger/" + modelPackage().replace('.', File.separatorChar);
+  }
+
+  @Override
+  public String getTypeDeclaration(Property p) {
+    if(p instanceof ArrayProperty) {
+      ArrayProperty ap = (ArrayProperty) p;
+      Property inner = ap.getItems();
+      return getSwaggerType(p) + "[" + getTypeDeclaration(inner) + "]";
+    }
+    else if (p instanceof MapProperty) {
+      MapProperty mp = (MapProperty) p;
+      Property inner = mp.getAdditionalProperties();
+      return getSwaggerType(p) + "[string," + getTypeDeclaration(inner) + "]";
+    }
+    return super.getTypeDeclaration(p);
+  }
+
+  @Override
+  public String getSwaggerType(Property p) {
+    String swaggerType = super.getSwaggerType(p);
+    String type = null;
+    if(typeMapping.containsKey(swaggerType)) {
+      type = typeMapping.get(swaggerType);
+      if(languageSpecificPrimitives.contains(type)) {
+        return type;
+      }
+    }
+    else
+      type = swaggerType;
+    if(type == null)
+      return null;
+    return type;
+  }
+
+  public String toDefaultValue(Property p) {
+    return "null";
+  }
+
+
+  @Override
+  public String toVarName(String name) {
+    // parameter name starting with number won't compile
+    // need to escape it by appending _ at the beginning
+    if (name.matches("^[0-9]")) {
+      name = "_" + name;
+    }
+    
+    // return the name in underscore style
+    // PhoneNumber => phone_number
+    return underscore(name);
+  }
+
+  @Override
+  public String toParamName(String name) {
+    // should be the same as variable name
+    return toVarName(name);
+  }
+
+  @Override
+  public String toModelName(String name) {
+    // model name cannot use reserved keyword
+    if(reservedWords.contains(name))
+      escapeReservedWord(name); // e.g. return => _return
+
+    // camelize the model name
+    // phone_number => PhoneNumber
+    return camelize(name);
+  }
+
+  @Override
+  public String toModelFilename(String name) {
+    // should be the same as the model name
+    return toModelName(name);
+  }
+
+}