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

Introduction

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

Prototype

public PatchException(String message) 

Source Link

Usage

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

/**
 * Constructs a {@link Patch} object given a JsonNode.
 * /*w w w. j av  a 2s .c om*/
 * @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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