/**
* Copyright 2013 ArcBees Inc.
*
* 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.gwtplatform.dispatch.rest.rebind;
import java.io.InputStream;
import java.util.Properties;
import javax.inject.Singleton;
import org.apache.velocity.app.VelocityEngine;
import com.google.common.eventbus.EventBus;
import com.google.gwt.core.ext.GeneratorContext;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.TypeOracle;
import com.google.inject.AbstractModule;
import com.google.inject.Provides;
import com.google.inject.assistedinject.FactoryModuleBuilder;
import com.gwtplatform.dispatch.rest.rebind.util.GeneratorUtil;
/**
* Rest-Dispatch code generation module.
*/
public class RebindModule extends AbstractModule {
private static final String VELOCITY_PROPERTIES = "com/gwtplatform/dispatch/rest/rebind/velocity.properties";
private final Logger logger;
private final GeneratorContext generatorContext;
public RebindModule(Logger logger, GeneratorContext generatorContext) {
super();
this.logger = logger;
this.generatorContext = generatorContext;
}
@Provides
public Logger getLogger() {
return logger;
}
@Provides
public TypeOracle getTypeOracle() {
return generatorContext.getTypeOracle();
}
@Provides
public GeneratorContext getGeneratorContext() {
return generatorContext;
}
@Provides
@Singleton
public VelocityEngine getVelocityEngine(@VelocityProperties String velocityProperties, Logger logger)
throws UnableToCompleteException {
try {
InputStream inputStream = null;
Properties properties = new Properties();
try {
inputStream = this.getClass().getClassLoader().getResourceAsStream(velocityProperties);
properties.load(inputStream);
return new VelocityEngine(properties);
} catch (Exception e) {
logger.die("Cannot load velocity properties from " + velocityProperties);
} finally {
if (inputStream != null) {
inputStream.close();
}
}
} catch (Exception e) {
logger.getTreeLogger().log(TreeLogger.Type.ERROR, e.getMessage(), e);
}
return null;
}
@Override
protected void configure() {
bindConstant().annotatedWith(VelocityProperties.class).to(VELOCITY_PROPERTIES);
bind(GeneratorUtil.class).in(Singleton.class);
bind(EventBus.class).in(Singleton.class);
install(new FactoryModuleBuilder().build(GeneratorFactory.class));
}
}