org.flyte.jflyte.gcp.GcpTokenSourceFactory Maven / Gradle / Ivy
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/*
* Copyright 2021 Flyte Authors.
*
* 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 org.flyte.jflyte.gcp;
import com.google.api.client.googleapis.util.Utils;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.io.UncheckedIOException;
import java.time.Clock;
import java.util.Objects;
import org.flyte.jflyte.api.TokenSource;
import org.flyte.jflyte.api.TokenSourceFactory;
public class GcpTokenSourceFactory implements TokenSourceFactory {
private final String targetAudience;
public GcpTokenSourceFactory(String targetAudience) {
this.targetAudience = Objects.requireNonNull(targetAudience, "targetDuration");
}
@Override
public String getMethod() {
return "id_token";
}
@Override
public TokenSource getTokenSource() {
Clock clock = Clock.systemUTC();
return new GcpTokenSource(
new GoogleAuthHelper(Utils.getDefaultTransport(), getCredentials(), clock), targetAudience);
}
private static GoogleCredentials getCredentials() {
try {
return GoogleCredentials.getApplicationDefault();
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
}