software.amazon.awssdk.services.cleanroomsml.endpoints.internal.ParseUrl Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of cleanroomsml Show documentation

The AWS Java SDK for Clean Rooms ML module holds the client classes that are used for communicating with Clean Rooms ML.

There is a newer version: 2.28.6

Show newest version

/*
 * 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.cleanroomsml.endpoints.internal;

import java.net.MalformedURLException;
import java.net.URL;
import java.util.Arrays;
import software.amazon.awssdk.annotations.SdkInternalApi;
import software.amazon.awssdk.utils.MapUtils;
import software.amazon.awssdk.utils.StringUtils;

/**
 * Function to parse a URI from a string.
 */
@SdkInternalApi
public class ParseUrl extends SingleArgFn {
    public static final String ID = "parseURL";

    public static final Identifier SCHEME = Identifier.of("scheme");
    public static final Identifier AUTHORITY = Identifier.of("authority");
    public static final Identifier PATH = Identifier.of("path");
    public static final Identifier NORMALIZED_PATH = Identifier.of("normalizedPath");
    public static final Identifier IS_IP = Identifier.of("isIp");

    public ParseUrl(FnNode fnNode) {
        super(fnNode);
    }

    public static ParseUrl ofExprs(Expr expr) {
        return new ParseUrl(FnNode.ofExprs(ID, expr));
    }

    @Override
    public  T acceptFnVisitor(FnVisitor visitor) {
        return visitor.visitParseUrl(this);
    }

    @Override
    protected Value evalArg(Value arg) {
        String url = arg.expectString();
        try {
            URL parsed = new URL(url);
            String path = parsed.getPath();
            if (parsed.getQuery() != null) {
                return Value.none();

            }
            boolean isIpAddr = false;
            String host = parsed.getHost();
            if (host.startsWith("[") && host.endsWith("]")) {
                isIpAddr = true;
            }
            String[] dottedParts = host.split("\\.");
            if (dottedParts.length == 4) {
                if (Arrays.stream(dottedParts).allMatch(part -> {
                    try {
                        int value = Integer.parseInt(part);
                        return value >= 0 && value <= 255;
                    } catch (NumberFormatException ex) {
                        return false;
                    }
                })) {
                    isIpAddr = true;
                }
            }
            String normalizedPath;
            if (StringUtils.isBlank(path)) {
                normalizedPath = "/";
            } else {
                StringBuilder builder = new StringBuilder();
                if (!path.startsWith("/")) {
                    builder.append("/");
                }
                builder.append(path);
                if (!path.endsWith("/")) {
                    builder.append("/");
                }
                normalizedPath = builder.toString();
            }
            return Value.fromRecord(MapUtils.of(SCHEME, Value.fromStr(parsed.getProtocol()), AUTHORITY,
                    Value.fromStr(parsed.getAuthority()), PATH, Value.fromStr(path), NORMALIZED_PATH,
                    Value.fromStr(normalizedPath), IS_IP, Value.fromBool(isIpAddr)));
        } catch (MalformedURLException e) {
            return Value.none();
        }
    }
}