GwtServiceCallGenerator.java

package ilarkesto.mda.generator;

import ilarkesto.base.Str;
import ilarkesto.mda.model.Node;
import ilarkesto.mda.model.NodeByIndexComparator;
import ilarkesto.mda.model.NodeTypes;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class GwtServiceCallGenerator extends AJavaClassGenerator implements NodeTypes {

	private Node call;
	private Node package_;
	private Node gwtModule;

	public GwtServiceCallGenerator(String srcPath, Node call) {
		super(srcPath, true);
		this.call = call;

		package_ = call.getSuperparentByType(Package);
		assert package_ != null;
		gwtModule = package_.getSuperparentByType(GwtModule);
		assert gwtModule != null;

	}

	@Override
	protected void printCode(JavaPrinter out) {
		out.package_(getPackageName());
		out.beginClass(call.getValue() + "ServiceCall", "scrum.client.core.AServiceCall", null);

		List<Node> parameters = call.getChildrenByType(Parameter);
		Collections.sort(parameters, new NodeByIndexComparator());

		for (Node parameter : parameters) {
			out.field("private", getType(parameter), parameter.getValue(), null);
		}

		List<String> constructorParameters = new ArrayList<String>(parameters.size());
		for (Node parameter : parameters) {
			constructorParameters.add(getType(parameter) + " " + parameter.getValue());
		}
		out.beginConstructor(constructorParameters);
		for (Node parameter : parameters) {
			out.assignment("this." + parameter.getValue(), parameter.getValue());
		}
		out.endConstructor();

		StringBuilder callParameters = new StringBuilder();
		for (Node parameter : parameters) {
			callParameters.append(parameter.getValue()).append(", ");
		}

		out.beginMethod("void", "execute", Arrays.asList("Runnable returnHandler"));
		out.statement("serviceCaller.onServiceCall()");
		out.statement("serviceCaller.getService()." + Str.lowercaseFirstLetter(call.getValue())
				+ "(serviceCaller.getConversationNumber(), " + callParameters + "new DefaultCallback(returnHandler))");
		out.endMethod();

		out.toStringMethod('\"' + call.getValue() + '\"');

		out.endClass();
	}

	private String getType(Node parameter) {
		Node typeNode = parameter.getChildByType(Type);
		return typeNode == null ? "String" : typeNode.getValue();
	}

	private String getPackageName() {
		String packageName = getBasePackageName() + "." + package_.getValue();
		return packageName;
	}

	private String getBasePackageName() {
		return gwtModule.getValue().toLowerCase() + ".client";
	}
}