Package org.jclouds.compute.functions

Source Code of org.jclouds.compute.functions.DefaultCredentialsFromImageOrOverridingCredentials

/*
* 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.compute.functions;

import javax.inject.Singleton;

import org.jclouds.compute.domain.Template;
import org.jclouds.compute.options.RunScriptOptions;
import org.jclouds.domain.LoginCredentials;
import org.jclouds.domain.LoginCredentials.Builder;
import org.jclouds.javax.annotation.Nullable;

import com.google.common.base.Function;

/**
*
* @author Adrian Cole
*/
@Singleton
public class DefaultCredentialsFromImageOrOverridingCredentials implements Function<Template, LoginCredentials> {

   @Override
   public LoginCredentials apply(Template template) {
      RunScriptOptions options = template.getOptions();
      LoginCredentials defaultCreds = template.getImage().getDefaultCredentials();
      return overrideDefaultCredentialsWithOptionsIfPresent(defaultCreds, options);
   }

   public static LoginCredentials overrideDefaultCredentialsWithOptionsIfPresent(
         @Nullable LoginCredentials defaultCreds, RunScriptOptions options) {
      Builder builder = LoginCredentials.builder(defaultCreds);
      if (options.getLoginUser() != null)
         builder.user(options.getLoginUser());
      if (options.getLoginPassword() != null)
         builder.password(options.getLoginPassword());
      if (options.getLoginPrivateKey() != null)
         builder.privateKey(options.getLoginPrivateKey());
      if (options.shouldAuthenticateSudo() != null)
         builder.authenticateSudo(true);
      return builder.build();
   }

}
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