/*
* Copyright 2012 Daniel Kurka
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.googlecode.mgwt.ui.generator;
import java.io.PrintWriter;
import com.google.gwt.core.ext.BadPropertyValueException;
import com.google.gwt.core.ext.ConfigurationProperty;
import com.google.gwt.core.ext.Generator;
import com.google.gwt.core.ext.GeneratorContext;
import com.google.gwt.core.ext.PropertyOracle;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.core.ext.typeinfo.NotFoundException;
import com.google.gwt.user.rebind.ClassSourceFileComposerFactory;
import com.google.gwt.user.rebind.SourceWriter;
public class SuperDevModeGenerator extends Generator{
@Override
public String generate(TreeLogger logger, GeneratorContext context, String typeName) throws UnableToCompleteException {
// get the property oracle
PropertyOracle propertyOracle = context.getPropertyOracle();
ConfigurationProperty property = null;
try {
// get mgwt.superdevmode variable
property = propertyOracle.getConfigurationProperty("mgwt.superdevmode");
} catch (BadPropertyValueException e) {
// if we can`t find it die
logger.log(TreeLogger.ERROR, "can not resolve mgwt.superdevmode variable", e);
throw new UnableToCompleteException();
}
ConfigurationProperty superDevModeServer = null;
try {
// get mgwt.superdevmode variable
superDevModeServer = propertyOracle.getConfigurationProperty("mgwt.superdevmode_host");
} catch (BadPropertyValueException e) {
// if we can`t find it die
logger.log(TreeLogger.INFO, "can not resolve mgwt.superdevmode_host variable - using default - http://<server>:9876", e);
}
JClassType classType = null;
try {
// get the type we are looking for
classType = context.getTypeOracle().getType(typeName);
} catch (NotFoundException e) {
// if we can`t get it die
logger.log(TreeLogger.ERROR, "can not find type: '" + typeName + "'", e);
throw new UnableToCompleteException();
}
// get value of mgwt.os
String mgwtSuperDevmodePropertyValue = property.getValues().get(0);
if("on".equals(mgwtSuperDevmodePropertyValue)){
return buildOnImplementation(logger, context, classType, typeName, superDevModeServer);
}else{
return "com.googlecode.mgwt.ui.client.util.impl.SuperDevModeOffImpl";
}
}
private String buildOnImplementation(TreeLogger logger, GeneratorContext context, JClassType classType, String typeName, ConfigurationProperty superDevModeServer) {
if(superDevModeServer.getValues().get(0) == null){
//use default impl!
return "com.googlecode.mgwt.ui.client.util.impl.SuperDevModeHelperOnDefaultImpl";
}
// get the package name
String packageName = classType.getPackage().getName();
// build name for implementation class
String simpleName = classType.getSimpleSourceName() + "_generated";
// combine package name and simple name to full qualified
String fullName = packageName + "." + simpleName;
ClassSourceFileComposerFactory composer = new ClassSourceFileComposerFactory(packageName, simpleName);
composer.setSuperclass("com.googlecode.mgwt.ui.client.util.impl.SuperDevModeHelperOnImpl");
composer.addImport("com.googlecode.mgwt.ui.client.util.impl.SuperDevModeHelperOnImpl");
PrintWriter printWriter = context.tryCreate(logger, packageName, simpleName);
if (printWriter == null) {
return fullName;
}
// start writing the implementation
SourceWriter writer = composer.createSourceWriter(context, printWriter);
writer.println("protected String getServerUrl() {");
writer.println("return \"" + superDevModeServer.getValues().get(0) + "\";");
writer.println("}");
writer.commit(logger);
return fullName;
}
}