com.google.cloud.dataflow.sdk.util.GcpCredentialFactory Maven / Gradle / Ivy

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Google Cloud Dataflow Java SDK provides a simple, Java-based interface for processing virtually any size data using Google cloud resources. This artifact includes entire Dataflow Java SDK.

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/*
 * Copyright (C) 2015 Google 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.google.cloud.dataflow.sdk.util;

import com.google.api.client.auth.oauth2.Credential;
import com.google.cloud.dataflow.sdk.options.GcpOptions;
import com.google.cloud.dataflow.sdk.options.PipelineOptions;

import java.io.IOException;
import java.security.GeneralSecurityException;

/**
 * Construct an oauth credential to be used by the SDK and the SDK workers.
 * Returns a GCP credential.
 */
public class GcpCredentialFactory implements CredentialFactory {
  private GcpOptions options;

  private GcpCredentialFactory(GcpOptions options) {
    this.options = options;
  }

  public static GcpCredentialFactory fromOptions(PipelineOptions options) {
    return new GcpCredentialFactory(options.as(GcpOptions.class));
  }

  @Override
  public Credential getCredential()  throws IOException, GeneralSecurityException {
    return Credentials.getCredential(options);
  }
}