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/*
* Copyright (C) 2006 Google 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.google.inject.example;
import com.google.inject.Inject;
import com.google.inject.Provider;
import javax.naming.Context;
import javax.naming.NamingException;
class JndiProvider<T> implements Provider<T> {
@Inject Context context;
final String name;
final Class<T> type;
JndiProvider(Class<T> type, String name) {
this.name = name;
this.type = type;
}
@Override
public T get() {
try {
return type.cast(context.lookup(name));
} catch (NamingException e) {
throw new RuntimeException(e);
}
}
/** Creates a JNDI provider for the given type and name. */
static <T> Provider<T> fromJndi(Class<T> type, String name) {
return new JndiProvider<T>(type, name);
}
}
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