com.netflix.atlas.aws.FileCredentialsProvider.scala Maven / Gradle / Ivy

Go to download
/*
 * Copyright 2015 Netflix, Inc.
 *
 * Licensed 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 com.netflix.atlas.aws

import java.io.File

import com.amazonaws.auth.AWSCredentials
import com.amazonaws.auth.AWSCredentialsProvider
import com.amazonaws.auth.PropertiesCredentials


object FileCredentialsProvider {
  def apply(path: String): FileCredentialsProvider = {
    new FileCredentialsProvider(new File(path))
  }
}

/** Wraps the Amazon PropertiesCredentials class in an provider interface. */
class FileCredentialsProvider(file: File) extends AWSCredentialsProvider {

  @volatile private var ref: AWSCredentials = newCredentials

  private def newCredentials: AWSCredentials = new PropertiesCredentials(file)

  def getCredentials: AWSCredentials = ref

  def refresh() {
    ref = newCredentials
  }
}