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/*
* Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.aaa.sts;
import com.google.common.base.Function;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableList.Builder;
import com.google.common.collect.Lists;
import java.util.List;
import org.apache.felix.dm.DependencyActivatorBase;
import org.apache.felix.dm.DependencyManager;
import org.opendaylight.aaa.api.AuthenticationService;
import org.opendaylight.aaa.api.ClaimAuth;
import org.opendaylight.aaa.api.ClientService;
import org.opendaylight.aaa.api.CredentialAuth;
import org.opendaylight.aaa.api.IdMService;
import org.opendaylight.aaa.api.TokenAuth;
import org.opendaylight.aaa.api.TokenStore;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.util.tracker.ServiceTracker;
import org.osgi.util.tracker.ServiceTrackerCustomizer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* An activator for the secure token server to inject in a
* {@link CredentialAuth} implementation.
*
* @author liemmn
* @author Ryan Goulding (ryandgoulding@gmail.com)
*/
public class Activator extends DependencyActivatorBase {
private static final Logger LOG = LoggerFactory.getLogger(Activator.class);
// Definition of several methods called in the ServiceLocator through
// Reflection
private static final String AUTHENTICATION_SERVICE_REMOVED = "authenticationServiceRemoved";
private static final String AUTHENTICATION_SERVICE_ADDED = "authenticationServiceAdded";
private static final String TOKEN_STORE_REMOVED = "tokenStoreRemoved";
private static final String TOKEN_STORE_ADDED = "tokenStoreAdded";
private static final String TOKEN_AUTH_REMOVED = "tokenAuthRemoved";
private static final String TOKEN_AUTH_ADDED = "tokenAuthAdded";
private static final String CLAIM_AUTH_REMOVED = "claimAuthRemoved";
private static final String CLAIM_AUTH_ADDED = "claimAuthAdded";
private static final String CREDENTIAL_AUTH_REMOVED = "credentialAuthRemoved";
private static final String CREDENTIAL_AUTH_ADDED = "credentialAuthAdded";
// A collection of all services, which is used for closing ServiceTrackers
private ImmutableList<ServiceTracker<?, ?>> services;
@Override
public void init(BundleContext context, DependencyManager manager) throws Exception {
LOG.info("STS Activator initializing");
manager.add(createComponent().setImplementation(ServiceLocator.getInstance())
.add(createServiceDependency().setService(CredentialAuth.class)
.setRequired(true)
.setCallbacks(
CREDENTIAL_AUTH_ADDED,
CREDENTIAL_AUTH_REMOVED))
.add(createServiceDependency().setService(ClaimAuth.class)
.setRequired(false)
.setCallbacks(CLAIM_AUTH_ADDED,
CLAIM_AUTH_REMOVED))
.add(createServiceDependency().setService(TokenAuth.class)
.setRequired(false)
.setCallbacks(TOKEN_AUTH_ADDED,
TOKEN_AUTH_REMOVED))
.add(createServiceDependency().setService(TokenStore.class)
.setRequired(true)
.setCallbacks(TOKEN_STORE_ADDED,
TOKEN_STORE_REMOVED))
.add(createServiceDependency().setService(TokenStore.class)
.setRequired(true))
.add(createServiceDependency().setService(
AuthenticationService.class)
.setRequired(true)
.setCallbacks(
AUTHENTICATION_SERVICE_ADDED,
AUTHENTICATION_SERVICE_REMOVED))
.add(createServiceDependency().setService(IdMService.class)
.setRequired(true))
.add(createServiceDependency().setService(ClientService.class)
.setRequired(true)));
final Builder<ServiceTracker<?, ?>> servicesBuilder = new ImmutableList.Builder<ServiceTracker<?, ?>>();
// Async ServiceTrackers to track and load AAA STS bundles
final ServiceTracker<AuthenticationService, AuthenticationService> authenticationService = new ServiceTracker<>(
context, AuthenticationService.class,
new AAAServiceTrackerCustomizer<AuthenticationService>(
new Function<AuthenticationService, Void>() {
@Override
public Void apply(AuthenticationService authenticationService) {
ServiceLocator.getInstance().setAuthenticationService(
authenticationService);
return null;
}
}));
servicesBuilder.add(authenticationService);
authenticationService.open();
final ServiceTracker<IdMService, IdMService> idmService = new ServiceTracker<>(context,
IdMService.class, new AAAServiceTrackerCustomizer<IdMService>(
new Function<IdMService, Void>() {
@Override
public Void apply(IdMService idmService) {
ServiceLocator.getInstance().setIdmService(idmService);
return null;
}
}));
servicesBuilder.add(idmService);
idmService.open();
final ServiceTracker<TokenAuth, TokenAuth> tokenAuthService = new ServiceTracker<>(context,
TokenAuth.class, new AAAServiceTrackerCustomizer<TokenAuth>(
new Function<TokenAuth, Void>() {
@Override
public Void apply(TokenAuth tokenAuth) {
final List<TokenAuth> tokenAuthCollection = (List<TokenAuth>) Lists.newArrayList(tokenAuth);
ServiceLocator.getInstance().setTokenAuthCollection(
tokenAuthCollection);
return null;
}
}));
servicesBuilder.add(tokenAuthService);
tokenAuthService.open();
final ServiceTracker<TokenStore, TokenStore> tokenStoreService = new ServiceTracker<>(
context, TokenStore.class, new AAAServiceTrackerCustomizer<TokenStore>(
new Function<TokenStore, Void>() {
@Override
public Void apply(TokenStore tokenStore) {
ServiceLocator.getInstance().setTokenStore(tokenStore);
return null;
}
}));
servicesBuilder.add(tokenStoreService);
tokenStoreService.open();
final ServiceTracker<ClientService, ClientService> clientService = new ServiceTracker<>(
context, ClientService.class, new AAAServiceTrackerCustomizer<ClientService>(
new Function<ClientService, Void>() {
@Override
public Void apply(ClientService clientService) {
ServiceLocator.getInstance().setClientService(clientService);
return null;
}
}));
servicesBuilder.add(clientService);
clientService.open();
services = servicesBuilder.build();
LOG.info("STS Activator initialized; ServiceTracker may still be processing");
}
/**
* Wrapper for AAA generic service loading.
*
* @param <S>
*/
static final class AAAServiceTrackerCustomizer<S> implements ServiceTrackerCustomizer<S, S> {
private Function<S, Void> callback;
public AAAServiceTrackerCustomizer(final Function<S, Void> callback) {
this.callback = callback;
}
@Override
public S addingService(ServiceReference<S> reference) {
S service = reference.getBundle().getBundleContext().getService(reference);
LOG.info("Unable to resolve {}", service.getClass());
try {
callback.apply(service);
} catch (Exception e) {
LOG.error("Unable to resolve {}", service.getClass(), e);
}
return service;
}
@Override
public void modifiedService(ServiceReference<S> reference, S service) {
}
@Override
public void removedService(ServiceReference<S> reference, S service) {
}
}
@Override
public void destroy(BundleContext context, DependencyManager manager) throws Exception {
for (ServiceTracker<?, ?> serviceTracker : services) {
serviceTracker.close();
}
}
}
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