Added the (very early) beginnings of a Java-based code generator. Currenly only parses JSON document produced by the perl API docs scraper and produces a Java object graph.

git-svn-id: http://jclouds.googlecode.com/svn/trunk@857 3d8758e0-26b5-11de-8745-db77d3ebf521

aws/core/pom.xml

@@ -46,6 +46,19 @@
         <url>http://jclouds.googlecode.com/svn/trunk/aws/core</url>
     </scm>
 
+    <repositories>
+        <repository>
+            <id>gson</id>
+            <url>http://google-gson.googlecode.com/svn/mavenrepo</url>
+            <snapshots>
+                <enabled>true</enabled>
+            </snapshots>
+            <releases>
+                <enabled>true</enabled>
+            </releases>
+        </repository>
+    </repositories>
+
     <dependencies>
         <dependency>
             <groupId>joda-time</groupId>
@@ -63,5 +76,12 @@
             <version>1.2</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>1.3</version>
+            <scope>compile</scope>
+        </dependency>
     </dependencies>
+
 </project>

aws/core/src/main/java/org/jclouds/aws/codegen/model/Command.java

@@ -0,0 +1,13 @@
+package org.jclouds.aws.codegen.model;
+
+import java.util.List;
+
+public class Command {
+	private String className;
+	private String packageName;
+	private String awsType;
+	private List<Parameter> parameters;
+	private Handler handler;
+	private Response response;
+	private List<String> see;
+}

aws/core/src/main/java/org/jclouds/aws/codegen/model/Handler.java

@@ -0,0 +1,11 @@
+package org.jclouds.aws.codegen.model;
+
+import java.util.List;
+
+public class Handler {
+	private String className;
+	private String example;
+	private String awsType;
+	private String packageName;
+	private List<String> see;
+}

aws/core/src/main/java/org/jclouds/aws/codegen/model/Model.java

@@ -0,0 +1,12 @@
+package org.jclouds.aws.codegen.model;
+
+import java.util.List;
+
+public class Model {
+	private List<Package> packages;
+	
+	@Override
+	public String toString() {
+		return packages.toString();
+	}
+}

aws/core/src/main/java/org/jclouds/aws/codegen/model/Package.java

@@ -0,0 +1,13 @@
+package org.jclouds.aws.codegen.model;
+
+import java.util.List;
+
+public class Package {
+	private String name;
+	private List<Command> commands;
+
+	@Override
+	public String toString() {
+		return String.format("{'name':'%1$s', 'commands':%2$s", name, commands);
+	}
+}

aws/core/src/main/java/org/jclouds/aws/codegen/model/Parameter.java

@@ -0,0 +1,9 @@
+package org.jclouds.aws.codegen.model;
+
+public class Parameter {
+	private String name;
+	private String type;
+	private String javaType;
+	private String param;
+	private String desc;
+}

aws/core/src/main/java/org/jclouds/aws/codegen/model/Response.java

@@ -0,0 +1,12 @@
+package org.jclouds.aws.codegen.model;
+
+import java.util.List;
+
+public class Response {
+	private String className;
+	private List<ResponseField> fields;
+	private String awsType;
+	private String javaType;
+	private String packageName;
+	private List<String> see;	
+}

aws/core/src/main/java/org/jclouds/aws/codegen/model/ResponseField.java

@@ -0,0 +1,8 @@
+package org.jclouds.aws.codegen.model;
+
+public class ResponseField {
+	private String desc;
+	private String name;
+	private String type;
+	private String javaType;
+}

aws/core/src/main/java/org/jclouds/aws/codegen/util/CodeGenerator.java

@@ -0,0 +1,55 @@
+package org.jclouds.aws.codegen.util;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+
+import org.jclouds.aws.codegen.model.Model;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonParseException;
+
+/**
+ * TODO: Finish this class and document it.
+ * 
+ * 
+ * @author James Murty
+ */
+public class CodeGenerator {
+	
+	/**
+	 * Parses a JSON object model file (as generated by
+	 * <tt>aws/src/main/bin/parse_ec2.pl</tt>) and converts
+	 * it into a Java object graph. 
+	 * 
+	 * @param objectModelFile
+	 * @return
+	 * @throws JsonParseException
+	 * @throws FileNotFoundException
+	 */
+	public Model parseModelFromJSON(File objectModelFile) 
+		throws JsonParseException, FileNotFoundException 
+	{
+		Gson gson = new Gson();
+		return gson.fromJson(new FileReader(objectModelFile), Model.class);				
+	}
+	
+	public void generateCode(File objectModelFile, String rootPackageName) 
+		throws JsonParseException, FileNotFoundException 
+	{
+		Model model = parseModelFromJSON(objectModelFile);
+	}
+	
+
+	public static void main(String[] args) throws Exception {
+		if (args.length != 2) {
+			System.out.println("Usage: CodeGenerator objectModelFile rootPackage");
+			System.out.println("  E.g: CodeGenerator ec2.json org.jclouds.aws.ec2");
+			System.exit(1);
+		}
+		
+		CodeGenerator codeGenerator = new CodeGenerator();
+		codeGenerator.generateCode(new File(args[0]), args[1]);
+	}
+	
+}