org.jclouds.cloudstack.suppliers.GetCurrentUser.java Source code

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Here is the source code for org.jclouds.cloudstack.suppliers.GetCurrentUser.java

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/*
 * 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.jclouds.cloudstack.suppliers;

import static com.google.common.base.Preconditions.checkNotNull;

import java.util.NoSuchElementException;

import javax.annotation.Resource;
import javax.inject.Inject;

import org.jclouds.cloudstack.CloudStackClient;
import org.jclouds.cloudstack.domain.User;
import org.jclouds.cloudstack.predicates.UserPredicates;
import org.jclouds.domain.Credentials;
import org.jclouds.location.Provider;
import org.jclouds.logging.Logger;

import com.google.common.base.Predicate;
import com.google.common.base.Supplier;
import com.google.common.collect.Iterables;

/**
 * 
 * @author Adrian Cole
 */
public class GetCurrentUser implements Supplier<User> {

    @Resource
    protected Logger logger = Logger.NULL;

    private final CloudStackClient client;
    private final Supplier<Credentials> creds;

    @Inject
    public GetCurrentUser(CloudStackClient client, @Provider Supplier<Credentials> creds) {
        this.client = checkNotNull(client, "client");
        this.creds = checkNotNull(creds, "creds");
    }

    @Override
    public User get() {
        Iterable<User> users = Iterables.concat(client.getAccountClient().listAccounts());
        Predicate<User> apiKeyMatches = UserPredicates.apiKeyEquals(creds.get().identity);
        User currentUser = null;
        try {
            currentUser = Iterables.find(users, apiKeyMatches);
        } catch (NoSuchElementException e) {
            throw new NoSuchElementException(
                    String.format("none of the following users match %s: %s", apiKeyMatches, users));
        }

        return currentUser;
    }
}