package com.ctrip.framework.apollo.build;
import com.ctrip.framework.apollo.exceptions.ApolloConfigException;
import com.ctrip.framework.apollo.internals.Injector;
import com.ctrip.framework.apollo.tracer.Tracer;
import com.ctrip.framework.foundation.internals.ServiceBootstrap;
/**
* @author Jason Song(song_s@ctrip.com)
*/
public class ApolloInjector {
private static volatile Injector s_injector;
private static Object lock = new Object();
private static Injector getInjector() {
if (s_injector == null) {
synchronized (lock) {
if (s_injector == null) {
try {
s_injector = ServiceBootstrap.loadFirst(Injector.class);
} catch (Throwable ex) {
ApolloConfigException exception = new ApolloConfigException("Unable to initialize Apollo Injector!", ex);
Tracer.logError(exception);
throw exception;
}
}
}
}
return s_injector;
}
public static <T> T getInstance(Class<T> clazz) {
try {
return getInjector().getInstance(clazz);
} catch (Throwable ex) {
Tracer.logError(ex);
throw new ApolloConfigException(String.format("Unable to load instance for type %s!", clazz.getName()), ex);
}
}
public static <T> T getInstance(Class<T> clazz, String name) {
try {
return getInjector().getInstance(clazz, name);
} catch (Throwable ex) {
Tracer.logError(ex);
throw new ApolloConfigException(
String.format("Unable to load instance for type %s and name %s !", clazz.getName(), name), ex);
}
}
}