added slf4j, updated server gen logic

Author: fehguy

modules/swagger-generator/src/main/java/com/wordnik/swagger/generator/online/Generator.java

@@ -11,12 +11,18 @@
 
 import com.fasterxml.jackson.databind.JsonNode;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import java.io.File;
 import java.util.List;
 import java.util.ArrayList;
 
 public class Generator {
+  static Logger LOGGER = LoggerFactory.getLogger(Generator.class);
+
   public static String generateClient(String language, GeneratorInput opts) throws ApiException {
+    LOGGER.debug("generate client for " + language);
     if(opts == null) {
       throw new BadRequestException(400, "No options were supplied");
     }
@@ -67,8 +73,56 @@ public static String generateClient(String language, GeneratorInput opts) throws
     return outputFilename;
   }
 
-  public static String generateServer(String language, GeneratorInput opts) {
-    return "";
+  public static String generateServer(String language, GeneratorInput opts) throws ApiException {
+    LOGGER.debug("generate server for " + language);
+    if(opts == null) {
+      throw new BadRequestException(400, "No options were supplied");
+    }
+    JsonNode node = opts.getSpec();
+    if(node == null) {
+      throw new BadRequestException(400, "No swagger specification was supplied");
+    }
+    Swagger swagger = new SwaggerParser().read(node);
+    if(swagger == null) {
+      throw new BadRequestException(400, "The swagger specification supplied was not valid");
+    }
+
+    ClientOptInput clientOptInput = new ClientOptInput();
+    ClientOpts clientOpts = new ClientOpts();
+    String outputFolder = getTmpFolder().getAbsolutePath() + File.separator + language + "-server";
+    String outputFilename = outputFolder + "-bundle.zip";
+
+    clientOptInput
+      .opts(clientOpts)
+      .swagger(swagger);
+
+    CodegenConfig codegenConfig = Codegen.getConfig(language);
+    if(codegenConfig == null) {
+      throw new BadRequestException(400, "Unsupported target " + language + " supplied");
+    }
+
+    codegenConfig.setOutputDir(outputFolder);
+
+    Json.prettyPrint(clientOpts);
+
+    clientOptInput.setConfig(codegenConfig);
+
+    try{
+      List<File> files = new Codegen().opts(clientOptInput).generate();
+      if(files.size() > 0) {
+        List<File> filesToAdd = new ArrayList<File>();
+        filesToAdd.add(new File(outputFolder));
+        ZipUtil zip = new ZipUtil();
+        zip.compressFiles(filesToAdd, outputFilename);
+      }
+      else {
+        throw new BadRequestException(400, "A target generation was attempted, but no files were created!");
+      }
+    }
+    catch (Exception e) {
+      throw new BadRequestException(500, "Unable to build target: " + e.getMessage());
+    }
+    return outputFilename;
   }
 
   public static InputOption clientOptions(String language) {