common/openstack/src/main/java/org/jclouds/openstack/keystone/v2_0/functions/AuthenticateApiAccessKeyCredentials.java

/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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.openstack.keystone.v2_0.functions;

import javax.inject.Inject;
import javax.inject.Singleton;

import org.jclouds.domain.Credentials;
import org.jclouds.openstack.keystone.v2_0.AuthenticationClient;
import org.jclouds.openstack.keystone.v2_0.domain.Access;
import org.jclouds.openstack.keystone.v2_0.domain.ApiAccessKeyCredentials;
import org.jclouds.rest.AuthorizationException;

import com.google.common.base.Function;

@Singleton
public class AuthenticateApiAccessKeyCredentials implements Function<Credentials, Access> {
   private final AuthenticationClient client;

   @Inject
   public AuthenticateApiAccessKeyCredentials(AuthenticationClient client) {
      this.client = client;
   }

   @Override
   public Access apply(Credentials input) {
      if (input.identity.indexOf(':') == -1) {
         throw new AuthorizationException(String.format("Identity %s does not match format tenantName:accessKey",
                  input.identity), null);
      }

      String tenantId = input.identity.substring(0, input.identity.indexOf(':'));
      String usernameOrAccessKey = input.identity.substring(input.identity.indexOf(':') + 1);
      String passwordOrSecretKey = input.credential;

      ApiAccessKeyCredentials apiAccessKeyCredentials = ApiAccessKeyCredentials.createWithAccessKeyAndSecretKey(
               usernameOrAccessKey, passwordOrSecretKey);
      Access access;
      if(tenantId.matches("[0-9]*")) {
    	  access = client.authenticateTenantWithTenantIdAndCredentials(tenantId, apiAccessKeyCredentials);
      } else {
    	  access = client.authenticateTenantWithCredentials(tenantId, apiAccessKeyCredentials);
      }
      return access;
   }

   @Override
   public String toString() {
      return "authenticateApiAccessKeyCredentials()";
   }
}