package com.khs.sherpa.context.factory;
/*
* Copyright 2012 the original author or authors.
*
* 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.
*/
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.servlet.ServletContext;
import org.reflections.Reflections;
import com.khs.sherpa.SherpaSettings;
import com.khs.sherpa.annotation.Endpoint;
import com.khs.sherpa.exception.NoSuchManagedBeanExcpetion;
import com.khs.sherpa.parser.BooleanParamParser;
import com.khs.sherpa.parser.CalendarParamParser;
import com.khs.sherpa.parser.DateParamParser;
import com.khs.sherpa.parser.DoubleParamPaser;
import com.khs.sherpa.parser.FloatParamParser;
import com.khs.sherpa.parser.IntegerParamParser;
import com.khs.sherpa.parser.JsonParamParser;
import com.khs.sherpa.parser.StringParamParser;
public class DefaultManagedBeanFactory implements ManagedBeanFactory, InitManageBeanFactory {
private Set<ManagedBean> managedBeans = new LinkedHashSet<ManagedBean>();
public boolean containsManagedBean(Class<?> type) {
for(ManagedBean bean: managedBeans) {
if(type.isAssignableFrom(bean.getType())) {
return true;
}
}
return false;
}
public boolean containsManagedBean(String name) {
for(ManagedBean bean: managedBeans) {
if(bean.getName().equals(name)) {
return true;
}
}
return false;
}
public <T> T getManagedBean(Class<T> type) throws NoSuchManagedBeanExcpetion {
for(ManagedBean bean: managedBeans) {
if(type.isAssignableFrom(bean.getType())) {
return (T) bean.getInstance();
}
}
throw new NoSuchManagedBeanExcpetion(type.getName());
}
public <T> Collection<T> getManagedBeans(Class<T> type) {
List<T> list = new ArrayList<T>();
for(ManagedBean bean: managedBeans) {
if(type.isAssignableFrom(bean.getType())) {
list.add((T)bean.getInstance());
}
}
return list;
}
public Object getManagedBean(String name) throws NoSuchManagedBeanExcpetion {
for(ManagedBean bean: managedBeans) {
if(bean.getName().equals(name)) {
return bean.getInstance();
}
}
throw new NoSuchManagedBeanExcpetion(name);
}
public <T> T getManagedBean(String name, Class<T> type) throws NoSuchManagedBeanExcpetion {
return (T) this.getManagedBean(name);
}
public boolean isTypeMatch(String name, Class<?> type) throws NoSuchManagedBeanExcpetion {
return this.getType(name).isAssignableFrom(type);
}
public Class<?> getType(String name) throws NoSuchManagedBeanExcpetion {
return this.getManagedBean(name).getClass();
}
public int managedBeansCount() {
return managedBeans.size();
}
public void loadManagedBeans(String path) {
Reflections reflections = new Reflections(path);
this.loadManagedBeans(reflections.getTypesAnnotatedWith(com.khs.sherpa.annotation.Endpoint.class));
}
public void loadManagedBeans(Set<Class<?>> types) {
for(Class<?> type: types) {
this.loadManagedBean(type);
}
}
public void loadManagedBean(Class<?> type) {
ManagedBean bean = new ManagedSingletonBean(type);
managedBeans.add(bean);
}
public Map<String, Object> getEndpointTypes() {
Map<String, Object> map = new HashMap<String, Object>();
for(ManagedBean bean: managedBeans) {
if(bean.getType().isAnnotationPresent(Endpoint.class)) {
map.put(bean.getName(), bean.getInstance());
}
}
return map;
}
public void init(SherpaSettings settings, ServletContext context) {
this.loadManagedBean(settings.userService());
this.loadManagedBean(settings.tokenService());
this.loadManagedBean(settings.activityService());
this.loadManagedBean(settings.jsonProvider());
this.loadManagedBean(StringParamParser.class);
this.loadManagedBean(IntegerParamParser.class);
this.loadManagedBean(DoubleParamPaser.class);
this.loadManagedBean(FloatParamParser.class);
this.loadManagedBean(BooleanParamParser.class);
this.loadManagedBean(DateParamParser.class);
this.loadManagedBean(CalendarParamParser.class);
this.loadManagedBean(JsonParamParser.class);
// load the root domain
this.loadManagedBeans("com.khs.sherpa.endpoint");
}
}