software.amazon.awssdk.services.ssmsap.endpoints.internal.Condition Maven / Gradle / Ivy
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The AWS Java SDK for Ssm Sap module holds the client classes that are used for
communicating with Ssm Sap.
/*
* 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.ssmsap.endpoints.internal;
import java.util.Map;
import java.util.Optional;
import software.amazon.awssdk.annotations.SdkInternalApi;
import software.amazon.awssdk.protocols.jsoncore.JsonNode;
@SdkInternalApi
public final class Condition implements Eval, IntoSelf {
public static final String ASSIGN = "assign";
private final Expr fn;
private final Identifier result;
private Condition(Builder builder) {
this.fn = builder.fn;
this.result = builder.result;
}
public Expr getFn() {
return fn;
}
public Optional getResult() {
return Optional.ofNullable(result);
}
public static Condition fromNode(JsonNode node) {
Map objNode = node.asObject();
Builder b = builder();
Fn fn = FnNode.fromNode(node).validate();
b.fn(fn);
JsonNode assignNode = objNode.get(ASSIGN);
if (assignNode != null) {
b.result(assignNode.asString());
}
return b.build();
}
public static Builder builder() {
return new Builder();
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
this.getResult().ifPresent(res -> sb.append(res).append(" = "));
sb.append(this.fn);
return sb.toString();
}
@Override
public Value eval(Scope scope) {
Value value = this.fn.eval(scope);
if (!value.isNone()) {
this.getResult().ifPresent(res -> scope.insert(res, value));
}
return value;
}
public Expr expr() {
if (this.getResult().isPresent()) {
return Expr.ref(this.getResult().get());
} else {
throw new RuntimeException("Cannot generate expr from a condition without a result");
}
}
public static class Builder {
private Fn fn;
private Identifier result;
public Builder fn(Fn fn) {
this.fn = fn;
return this;
}
public Builder result(String result) {
this.result = Identifier.of(result);
return this;
}
public Condition build() {
return new Condition(this);
}
}
}
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