software.amazon.awssdk.services.firehose.endpoints.internal.FnNode Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of firehose Show documentation
The AWS Java SDK for Amazon Kinesis Firehose module holds the client classes that are used for communicating with Amazon Kinesis Firehose Service
The 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.firehose.endpoints.internal;

import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import software.amazon.awssdk.annotations.SdkInternalApi;
import software.amazon.awssdk.protocols.jsoncore.JsonNode;

/**
 * Parsed but not validated function contents containing the `fn` name and `argv`
 */
@SdkInternalApi
public final class FnNode {
    private static final String ARGV = "argv";
    private static final String FN = "fn";

    private final String fn;
    private final List argv;

    private FnNode(Builder builder) {
        this.fn = builder.fn;
        this.argv = builder.argv;
    }

    public static FnNode ofExprs(String fn, Expr... expr) {
        return builder().fn(fn).argv(Arrays.stream(expr).collect(Collectors.toList())).build();
    }

    public Fn validate() {
        switch (fn) {
        case BooleanEqualsFn.ID:
            return new BooleanEqualsFn(this);
        case PartitionFn.ID:
            return new PartitionFn(this);
        case StringEqualsFn.ID:
            return new StringEqualsFn(this);
        case IsSet.ID:
            return new IsSet(this);
        case IsValidHostLabel.ID:
            return new IsValidHostLabel(this);
        case GetAttr.ID:
            return new GetAttr(this);
        case ParseArn.ID:
            return new ParseArn(this);
        case Not.ID:
            return new Not(this);
        case ParseUrl.ID:
            return new ParseUrl(this);
        case Substring.ID:
            return new Substring(this);
        case UriEncodeFn.ID:
            return new UriEncodeFn(this);
        case IsVirtualHostableS3Bucket.ID:
            return new IsVirtualHostableS3Bucket(this);
        default:
            throw RuleError.builder()
                    .cause(SourceException.builder().message(String.format("`%s` is not a valid function", fn)).build()).build();
        }
    }

    public String getId() {
        return fn;
    }

    public List getArgv() {
        return argv;
    }

    public static Builder builder() {
        return new Builder();
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        FnNode fnNode = (FnNode) o;

        if (fn != null ? !fn.equals(fnNode.fn) : fnNode.fn != null) {
            return false;
        }
        return argv != null ? argv.equals(fnNode.argv) : fnNode.argv == null;
    }

    @Override
    public int hashCode() {
        int result = fn != null ? fn.hashCode() : 0;
        result = 31 * result + (argv != null ? argv.hashCode() : 0);
        return result;
    }

    public static FnNode fromNode(JsonNode node) {
        Map objNode = node.asObject();

        return builder().fn(objNode.get(FN).asString())
                .argv(objNode.get(ARGV).asArray().stream().map(Expr::fromNode).collect(Collectors.toList())).build();
    }

    public static class Builder {
        private String fn;
        private List argv;

        public Builder() {
        }

        public Builder argv(List argv) {
            this.argv = argv;
            return this;
        }

        public Builder fn(String fn) {
            this.fn = fn;
            return this;
        }

        public FnNode build() {
            return new FnNode(this);
        }
    }

}