Example usage for org.springframework.data.rest.webmvc.json.patch CopyOperation CopyOperation

Introduction

In this page you can find the example usage for org.springframework.data.rest.webmvc.json.patch CopyOperation CopyOperation.

Prototype

public CopyOperation(UntypedSpelPath path, UntypedSpelPath from) 

Source Link

Document

Constructs the copy operation

Usage

From source file:org.springframework.data.rest.webmvc.json.patch.JsonPatchPatchConverter.java

/**
 * Constructs a {@link Patch} object given a JsonNode.
 * //  w  w w .  jav a  2  s.  c o m
 * @param jsonNode a JsonNode containing the JSON Patch
 * @return a {@link Patch}
 */
public Patch convert(JsonNode jsonNode) {
    if (!(jsonNode instanceof ArrayNode)) {
        throw new IllegalArgumentException("JsonNode must be an instance of ArrayNode");
    }

    ArrayNode opNodes = (ArrayNode) jsonNode;
    List<PatchOperation> ops = new ArrayList<PatchOperation>(opNodes.size());
    for (Iterator<JsonNode> elements = opNodes.elements(); elements.hasNext();) {
        JsonNode opNode = elements.next();

        String opType = opNode.get("op").textValue();
        String path = opNode.get("path").textValue();

        JsonNode valueNode = opNode.get("value");
        Object value = valueFromJsonNode(path, valueNode);
        String from = opNode.has("from") ? opNode.get("from").textValue() : null;

        if (opType.equals("test")) {
            ops.add(new TestOperation(path, value));
        } else if (opType.equals("replace")) {
            ops.add(new ReplaceOperation(path, value));
        } else if (opType.equals("remove")) {
            ops.add(new RemoveOperation(path));
        } else if (opType.equals("add")) {
            ops.add(new AddOperation(path, value));
        } else if (opType.equals("copy")) {
            ops.add(new CopyOperation(path, from));
        } else if (opType.equals("move")) {
            ops.add(new MoveOperation(path, from));
        } else {
            throw new PatchException("Unrecognized operation type: " + opType);
        }
    }

    return new Patch(ops);
}

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