Example usage for com.amazonaws.services.cloudformation.model Parameter withUsePreviousValue

Introduction

In this page you can find the example usage for com.amazonaws.services.cloudformation.model Parameter withUsePreviousValue.

Prototype

public Parameter withUsePreviousValue(Boolean usePreviousValue) 

Source Link

Document

During a stack update, use the existing parameter value that the stack is using for a given parameter key.

Usage

From source file:de.taimos.pipeline.aws.cloudformation.parser.JSONParameterFileParser.java

License:Apache License

@Override
public Collection<Parameter> parseParams(InputStream fileContent) throws IOException {
    ObjectMapper mapper = new ObjectMapper();
    JsonNode tree = mapper.readTree(fileContent);
    Collection<Parameter> parameters = new ArrayList<>();
    if (tree instanceof ArrayNode) {
        ArrayNode jsonNodes = (ArrayNode) tree;
        for (JsonNode node : jsonNodes) {
            Parameter param = new Parameter();
            param.withParameterKey(node.get("ParameterKey").asText());
            if (node.has("ParameterValue")) {
                param.withParameterValue(node.get("ParameterValue").asText());
            }//from   w  w w.j a va 2 s  .com
            if (node.has("UsePreviousValue")) {
                param.withUsePreviousValue(node.get("UsePreviousValue").booleanValue());
            }
            parameters.add(param);
        }
    }
    return parameters;
}

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