software.amazon.awssdk.services.appsync.endpoints.internal.DefaultAppSyncEndpointProvider Maven / Gradle / Ivy
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The AWS Java SDK for Amazon AppSync module holds the client classes that are used for communicating
with Amazon AppSync.
/*
* Copyright 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 software.amazon.awssdk.services.appsync.endpoints.internal;
import java.net.URI;
import java.util.concurrent.CompletableFuture;
import software.amazon.awssdk.annotations.Generated;
import software.amazon.awssdk.annotations.SdkInternalApi;
import software.amazon.awssdk.core.exception.SdkClientException;
import software.amazon.awssdk.endpoints.Endpoint;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.appsync.endpoints.AppSyncEndpointParams;
import software.amazon.awssdk.services.appsync.endpoints.AppSyncEndpointProvider;
import software.amazon.awssdk.utils.CompletableFutureUtils;
import software.amazon.awssdk.utils.Validate;
@Generated("software.amazon.awssdk:codegen")
@SdkInternalApi
public final class DefaultAppSyncEndpointProvider implements AppSyncEndpointProvider {
@Override
public CompletableFuture resolveEndpoint(AppSyncEndpointParams params) {
Validate.notNull(params.useDualStack(), "Parameter 'UseDualStack' must not be null");
Validate.notNull(params.useFips(), "Parameter 'UseFIPS' must not be null");
try {
RuleResult result = endpointRule0(params, new LocalState(params.region()));
if (result.canContinue()) {
throw SdkClientException.create("Rule engine did not reach an error or endpoint result");
}
if (result.isError()) {
String errorMsg = result.error();
if (errorMsg.contains("Invalid ARN") && errorMsg.contains(":s3:::")) {
errorMsg += ". Use the bucket name instead of simple bucket ARNs in GetBucketLocationRequest.";
}
throw SdkClientException.create(errorMsg);
}
return CompletableFuture.completedFuture(result.endpoint());
} catch (Exception error) {
return CompletableFutureUtils.failedFuture(error);
}
}
private static RuleResult endpointRule0(AppSyncEndpointParams params, LocalState locals) {
RuleResult result = endpointRule1(params, locals);
if (result.isResolved()) {
return result;
}
result = endpointRule5(params, locals);
if (result.isResolved()) {
return result;
}
return endpointRule20(params, locals);
}
private static RuleResult endpointRule1(AppSyncEndpointParams params, LocalState locals) {
if (params.endpoint() != null) {
RuleResult result = endpointRule2(params, locals);
if (result.isResolved()) {
return result;
}
result = endpointRule3(params, locals);
if (result.isResolved()) {
return result;
}
return endpointRule4(params, locals);
}
return RuleResult.carryOn();
}
private static RuleResult endpointRule2(AppSyncEndpointParams params, LocalState locals) {
if (params.useFips()) {
return RuleResult.error("Invalid Configuration: FIPS and custom endpoint are not supported");
}
return RuleResult.carryOn();
}
private static RuleResult endpointRule3(AppSyncEndpointParams params, LocalState locals) {
if (params.useDualStack()) {
return RuleResult.error("Invalid Configuration: Dualstack and custom endpoint are not supported");
}
return RuleResult.carryOn();
}
private static RuleResult endpointRule4(AppSyncEndpointParams params, LocalState locals) {
return RuleResult.endpoint(Endpoint.builder().url(URI.create(params.endpoint())).build());
}
private static RuleResult endpointRule5(AppSyncEndpointParams params, LocalState locals) {
if (locals.region() != null) {
return endpointRule6(params, locals);
}
return RuleResult.carryOn();
}
private static RuleResult endpointRule6(AppSyncEndpointParams params, LocalState locals) {
RulePartition partitionResult = null;
if ((partitionResult = RulesFunctions.awsPartition(locals.region())) != null) {
locals = locals.toBuilder().partitionResult(partitionResult).build();
RuleResult result = endpointRule7(params, locals);
if (result.isResolved()) {
return result;
}
result = endpointRule11(params, locals);
if (result.isResolved()) {
return result;
}
result = endpointRule15(params, locals);
if (result.isResolved()) {
return result;
}
return endpointRule19(params, locals);
}
return RuleResult.carryOn();
}
private static RuleResult endpointRule7(AppSyncEndpointParams params, LocalState locals) {
if (params.useFips() && params.useDualStack()) {
RuleResult result = endpointRule8(params, locals);
if (result.isResolved()) {
return result;
}
return endpointRule10(params, locals);
}
return RuleResult.carryOn();
}
private static RuleResult endpointRule8(AppSyncEndpointParams params, LocalState locals) {
if (locals.partitionResult().supportsFIPS() && locals.partitionResult().supportsDualStack()) {
return endpointRule9(params, locals);
}
return RuleResult.carryOn();
}
private static RuleResult endpointRule9(AppSyncEndpointParams params, LocalState locals) {
return RuleResult.endpoint(Endpoint.builder()
.url(URI.create("https://appsync-fips." + locals.region() + "." + locals.partitionResult().dualStackDnsSuffix()))
.build());
}
private static RuleResult endpointRule10(AppSyncEndpointParams params, LocalState locals) {
return RuleResult.error("FIPS and DualStack are enabled, but this partition does not support one or both");
}
private static RuleResult endpointRule11(AppSyncEndpointParams params, LocalState locals) {
if (params.useFips()) {
RuleResult result = endpointRule12(params, locals);
if (result.isResolved()) {
return result;
}
return endpointRule14(params, locals);
}
return RuleResult.carryOn();
}
private static RuleResult endpointRule12(AppSyncEndpointParams params, LocalState locals) {
if (locals.partitionResult().supportsFIPS()) {
return endpointRule13(params, locals);
}
return RuleResult.carryOn();
}
private static RuleResult endpointRule13(AppSyncEndpointParams params, LocalState locals) {
return RuleResult.endpoint(Endpoint.builder()
.url(URI.create("https://appsync-fips." + locals.region() + "." + locals.partitionResult().dnsSuffix())).build());
}
private static RuleResult endpointRule14(AppSyncEndpointParams params, LocalState locals) {
return RuleResult.error("FIPS is enabled but this partition does not support FIPS");
}
private static RuleResult endpointRule15(AppSyncEndpointParams params, LocalState locals) {
if (params.useDualStack()) {
RuleResult result = endpointRule16(params, locals);
if (result.isResolved()) {
return result;
}
return endpointRule18(params, locals);
}
return RuleResult.carryOn();
}
private static RuleResult endpointRule16(AppSyncEndpointParams params, LocalState locals) {
if (locals.partitionResult().supportsDualStack()) {
return endpointRule17(params, locals);
}
return RuleResult.carryOn();
}
private static RuleResult endpointRule17(AppSyncEndpointParams params, LocalState locals) {
return RuleResult.endpoint(Endpoint.builder()
.url(URI.create("https://appsync." + locals.region() + "." + locals.partitionResult().dualStackDnsSuffix()))
.build());
}
private static RuleResult endpointRule18(AppSyncEndpointParams params, LocalState locals) {
return RuleResult.error("DualStack is enabled but this partition does not support DualStack");
}
private static RuleResult endpointRule19(AppSyncEndpointParams params, LocalState locals) {
return RuleResult.endpoint(Endpoint.builder()
.url(URI.create("https://appsync." + locals.region() + "." + locals.partitionResult().dnsSuffix())).build());
}
private static RuleResult endpointRule20(AppSyncEndpointParams params, LocalState locals) {
return RuleResult.error("Invalid Configuration: Missing Region");
}
@Override
public boolean equals(Object rhs) {
return rhs != null && getClass().equals(rhs.getClass());
}
@Override
public int hashCode() {
return getClass().hashCode();
}
private static final class LocalState {
private final String region;
private final RulePartition partitionResult;
LocalState() {
this.region = null;
this.partitionResult = null;
}
LocalState(Region region) {
if (region != null) {
this.region = region.id();
} else {
this.region = null;
}
this.partitionResult = null;
}
LocalState(LocalStateBuilder builder) {
this.region = builder.region;
this.partitionResult = builder.partitionResult;
}
public String region() {
return this.region;
}
public RulePartition partitionResult() {
return this.partitionResult;
}
public LocalStateBuilder toBuilder() {
return new LocalStateBuilder(this);
}
}
private static final class LocalStateBuilder {
private String region;
private RulePartition partitionResult;
LocalStateBuilder() {
this.region = null;
this.partitionResult = null;
}
LocalStateBuilder(LocalState locals) {
this.region = locals.region;
this.partitionResult = locals.partitionResult;
}
public LocalStateBuilder region(String value) {
this.region = value;
return this;
}
public LocalStateBuilder partitionResult(RulePartition value) {
this.partitionResult = value;
return this;
}
LocalState build() {
return new LocalState(this);
}
}
}