com.amazonaws.services.s3.internal.S3ObjectLambdaEndpointBuilder Maven / Gradle / Ivy

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The AWS Java SDK for Amazon S3 module holds the client classes that are used for communicating with Amazon Simple Storage Service
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/*
 * Copyright 2021-2024 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.services.s3.internal;

import static com.amazonaws.util.HostnameValidator.validateHostnameCompliant;
import java.net.URI;

public class S3ObjectLambdaEndpointBuilder {
    private URI endpointOverride;
    private String accessPointName;
    private String region;
    private String accountId;
    private String protocol;
    private String domain;
    private Boolean fipsEnabled;
    private Boolean dualstackEnabled;

    private S3ObjectLambdaEndpointBuilder() {
    }

    /**
     * Create a new instance of this builder class.
     */
    public static S3ObjectLambdaEndpointBuilder create() {
        return new S3ObjectLambdaEndpointBuilder();
    }

    public S3ObjectLambdaEndpointBuilder withEndpointOverride(URI endpointOverride) {
        this.endpointOverride = endpointOverride;
        return this;
    }

    public S3ObjectLambdaEndpointBuilder withAccessPointName(String accessPointName) {
        this.accessPointName = accessPointName;
        return this;
    }

    public S3ObjectLambdaEndpointBuilder withRegion(String region) {
        this.region = region;
        return this;
    }

    public S3ObjectLambdaEndpointBuilder withAccountId(String accountId) {
        this.accountId = accountId;
        return this;
    }

    public S3ObjectLambdaEndpointBuilder withProtocol(String protocol) {
        this.protocol = protocol;
        return this;
    }

    public S3ObjectLambdaEndpointBuilder withDomain(String domain) {
        this.domain = domain;
        return this;
    }

    public S3ObjectLambdaEndpointBuilder withFipsEnabled(Boolean fipsEnabled) {
        this.fipsEnabled = fipsEnabled;
        return this;
    }

    public S3ObjectLambdaEndpointBuilder withDualstackEnabled(Boolean dualstackEnabled) {
        this.dualstackEnabled = dualstackEnabled;
        return this;
    }

    /**
     * Generate an endpoint URI with no path that maps to the Object Lambdas Access Point information stored in this builder.
     */
    public URI toURI() {
        validateHostnameCompliant(accountId, "accountId", "object lambda ARN");
        validateHostnameCompliant(accessPointName, "accessPointName", "object lambda ARN");

        String fipsSegment = Boolean.TRUE.equals(fipsEnabled) ? "-fips" : "";

        String uriString;
        if (endpointOverride == null) {
            if (Boolean.TRUE.equals(dualstackEnabled)) {
                throw new IllegalArgumentException("S3 Object Lambda does not support Dual stack endpoints");
            }

             uriString = String.format("%s://%s-%s.s3-object-lambda%s.%s.%s",
                    protocol,
                    accessPointName,
                    accountId,
                    fipsSegment,
                    region,
                    domain);
        } else {
            StringBuilder uriSuffix = new StringBuilder(endpointOverride.getHost());
            if (endpointOverride.getPort() > 0) {
                uriSuffix.append(":").append(endpointOverride.getPort());
            }
            if (endpointOverride.getPath() != null) {
                uriSuffix.append(endpointOverride.getPath());
            }

            uriString = String.format("%s://%s-%s.%s", protocol, accessPointName, accountId, uriSuffix);
        }

        return URI.create(uriString);
    }
}