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A generic runtime built on the AWS SDK for Java
/*
* Copyright 2011-2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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.amazonaws.opensdk.internal.auth;
import com.amazonaws.SignableRequest;
import com.amazonaws.opensdk.protect.auth.RequestSignerAware;
import com.amazonaws.opensdk.protect.auth.RequestSignerNotFoundException;
import com.amazonaws.opensdk.protect.auth.RequestSignerProvider;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.CanHandleNullCredentials;
import com.amazonaws.auth.RequestSigner;
import com.amazonaws.auth.Signer;
import com.amazonaws.internal.auth.SignerProvider;
import com.amazonaws.internal.auth.SignerProviderContext;
public final class SignerProviderAdapter extends SignerProvider {
private final RequestSignerProvider provider;
public SignerProviderAdapter(RequestSignerProvider provider) {
this.provider = provider;
}
@Override
public Signer getSigner(SignerProviderContext context) {
final Object originalRequest = context.getRequestConfig().getOriginalRequest();
if (originalRequest instanceof RequestSignerAware) {
Class extends RequestSigner> signerType = ((RequestSignerAware) originalRequest)
.signerType();
return provider.getSigner(signerType)
.map(AuthorizerAsSigner::new)
.orElseThrow(() -> new RequestSignerNotFoundException(signerType));
}
return null;
}
private static class AuthorizerAsSigner implements Signer, CanHandleNullCredentials {
private final RequestSigner authorizer;
private AuthorizerAsSigner(RequestSigner authorizer) {
this.authorizer = authorizer;
}
@Override
public void sign(SignableRequest> request, AWSCredentials credentials) {
authorizer.sign(request);
}
}
}