/*
* 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.hadoop.hbase.security.token;
import java.util.Collection;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.security.token.Token;
import org.apache.hadoop.security.token.TokenIdentifier;
import org.apache.hadoop.security.token.TokenSelector;
public class AuthenticationTokenSelector
implements TokenSelector<AuthenticationTokenIdentifier> {
private static Log LOG = LogFactory.getLog(AuthenticationTokenSelector.class);
public AuthenticationTokenSelector() {
}
@Override
public Token<AuthenticationTokenIdentifier> selectToken(Text serviceName,
Collection<Token<? extends TokenIdentifier>> tokens) {
if (serviceName != null) {
for (Token ident : tokens) {
if (serviceName.equals(ident.getService()) &&
AuthenticationTokenIdentifier.AUTH_TOKEN_TYPE.equals(ident.getKind())) {
if (LOG.isDebugEnabled()) {
LOG.debug("Returning token "+ident);
}
return (Token<AuthenticationTokenIdentifier>)ident;
}
}
}
LOG.debug("No matching token found");
return null;
}
}