/**
* Sencha GXT 3.1.0-beta - Sencha for GWT
* Copyright(c) 2007-2014, Sencha, Inc.
* licensing@sencha.com
*
* http://www.sencha.com/products/gxt/license/
*/
package com.sencha.gxt.core.rebind;
import java.util.HashMap;
import java.util.Map;
import com.google.gwt.core.ext.GeneratorContext;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.TreeLogger.Type;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.sencha.gxt.core.client.XTemplates.TemplateCondition;
import com.sencha.gxt.core.client.XTemplates.TemplateConditions;
/**
* Intended as a general purpose method collector/provider to be used beyond
* just conditional methods.
*
*/
public class MethodCollector {
private final Map<String, TemplateCondition> methods = new HashMap<String, TemplateCondition>();
// private final GeneratorContext ctx;
private final TreeLogger logger;
public MethodCollector(GeneratorContext context, TreeLogger logger, JClassType template) {
// this.ctx = context;
this.logger = logger.branch(Type.DEBUG, "Collecting methods in " + template.getName());
for (JClassType type : template.getFlattenedSupertypeHierarchy()) {
if (type.isAnnotationPresent(TemplateCondition.class)) {
addMethod(type.getAnnotation(TemplateCondition.class));
}
if (type.isAnnotationPresent(TemplateConditions.class)) {
for (TemplateCondition c : type.getAnnotation(TemplateConditions.class).value()) {
addMethod(c);
}
}
}
}
private void addMethod(TemplateCondition annotation) {
String name = annotation.name().length() == 0 ? annotation.methodName() : annotation.name();
if (methods.containsKey(name)) {
logger.log(Type.WARN, "Template already has a method registered with name " + name + ". Not registering "
+ annotation.type().getName() + "." + annotation.methodName());
} else {
methods.put(name, annotation);
}
}
public String getMethodInvocation(String name, String target, String params) throws UnableToCompleteException {
TemplateCondition method = methods.get(name);
if (method == null) {
logger.log(Type.ERROR, "Method with name " + name + " not registered in this template");
throw new UnableToCompleteException();
}
String methodName = method.methodName();
//Commenting this out until we have a use case for it, and proper documentation
// if (target == null) {
// target = String.format("GWT.<%1$s>create(%1$s)", method.type().getName());
// }
return String.format("%1$s.%2$s(%3$s)", target, methodName, params);
}
}