org.apache.jackrabbit.oak.spi.security.authentication.token.CompositeTokenProvider Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.jackrabbit.oak.spi.security.authentication.token;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import javax.annotation.Nonnull;
import javax.jcr.Credentials;
import com.google.common.collect.ImmutableList;
/**
* Aggregates a collection of {@link TokenProvider}s into a single
* provider.
*/
public final class CompositeTokenProvider implements TokenProvider {
private final List providers;
private CompositeTokenProvider(@Nonnull List providers) {
this.providers = ImmutableList.copyOf(providers);
}
@Nonnull
public static TokenProvider newInstance(@Nonnull TokenProvider... providers) {
return newInstance(Arrays.asList(providers));
}
@Nonnull
public static TokenProvider newInstance(@Nonnull List providers) {
switch (providers.size()) {
case 0: return NULL_PROVIDER;
case 1: return providers.iterator().next();
default: return new CompositeTokenProvider(providers);
}
}
@Override
public boolean doCreateToken(@Nonnull Credentials credentials) {
for (TokenProvider tp : providers) {
if (tp.doCreateToken(credentials)) {
return true;
}
}
return false;
}
@Override
public TokenInfo createToken(@Nonnull Credentials credentials) {
for (TokenProvider tp : providers) {
TokenInfo info = tp.createToken(credentials);
if (info != null) {
return info;
}
}
return null;
}
@Override
public TokenInfo createToken(@Nonnull String userId, @Nonnull Map attributes) {
for (TokenProvider tp : providers) {
TokenInfo info = tp.createToken(userId, attributes);
if (info != null) {
return info;
}
}
return null;
}
@Override
public TokenInfo getTokenInfo(@Nonnull String token) {
for (TokenProvider tp : providers) {
TokenInfo info = tp.getTokenInfo(token);
if (info != null) {
return info;
}
}
return null;
}
private static final TokenProvider NULL_PROVIDER = new TokenProvider() {
@Override
public boolean doCreateToken(@Nonnull Credentials credentials) {
return false;
}
@Override
public TokenInfo createToken(@Nonnull Credentials credentials) {
return null;
}
@Override
public TokenInfo createToken(@Nonnull String userId, @Nonnull Map attributes) {
return null;
}
@Override
public TokenInfo getTokenInfo(@Nonnull String token) {
return null;
}
};
}