/*
* Copyright © 2014 Cask Data, 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 co.cask.cdap.security.guice;
import co.cask.cdap.common.conf.CConfiguration;
import co.cask.cdap.common.io.Codec;
import co.cask.cdap.security.auth.DistributedKeyManager;
import co.cask.cdap.security.auth.KeyIdentifier;
import co.cask.cdap.security.auth.KeyManager;
import com.google.inject.Binder;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Scopes;
import org.apache.twill.zookeeper.ZKClientService;
/**
* Configures dependency injection with all security class implementations required to run in a distributed
* environment.
*/
public class DistributedSecurityModule extends SecurityModule {
@Override
protected void bindKeyManager(Binder binder) {
binder.bind(KeyManager.class).toProvider(DistributedKeyManagerProvider.class).in(Scopes.SINGLETON);
}
private static final class DistributedKeyManagerProvider implements Provider<KeyManager> {
private final CConfiguration cConf;
private final Codec<KeyIdentifier> keyCodec;
private final ZKClientService zkClient;
@Inject
DistributedKeyManagerProvider(CConfiguration cConf, Codec<KeyIdentifier> codec, ZKClientService zkClient) {
this.cConf = cConf;
this.keyCodec = codec;
this.zkClient = zkClient;
}
@Override
public KeyManager get() {
return new DistributedKeyManager(cConf, keyCodec, zkClient);
}
}
}