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48 changes: 48 additions & 0 deletions
48
smithy-model/src/main/java/software/amazon/smithy/model/node/NodeSorter.java
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/* | ||
* Copyright 2019 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. | ||
*/ | ||
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package software.amazon.smithy.model.node; | ||
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import java.util.Comparator; | ||
import java.util.Map; | ||
import java.util.TreeMap; | ||
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class NodeSorter extends NodeVisitor.Default<Node> { | ||
private final Comparator<Node> comparator; | ||
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NodeSorter(Comparator<Node> comparator) { | ||
this.comparator = comparator; | ||
} | ||
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@Override | ||
protected Node getDefault(Node node) { | ||
return node; | ||
} | ||
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@Override | ||
public Node objectNode(ObjectNode node) { | ||
Map<StringNode, Node> members = new TreeMap<>(comparator); | ||
node.getMembers().forEach((k, v) -> members.put(k, v.accept(this))); | ||
return new ObjectNode(members, node.getSourceLocation()); | ||
} | ||
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@Override | ||
public Node arrayNode(ArrayNode node) { | ||
return node.getElements().stream() | ||
.map(v -> v.accept(this)) | ||
.sorted(comparator) | ||
.collect(ArrayNode.collect(node.getSourceLocation())); | ||
} | ||
} |