#! perl -slw
use strict;

$/ = "\n}\n";

while( <DATA> ) {
    s[
        (
            nodeName.equals \( \s* " ( [^"]+ ) " ( .+? )  #"
           new \s+ ( Integer | Double ) \(  .+? \)\)\);
        )
   ][msg.isSetField(${2}.FIELD${3}(msg.get$4(${2}.FIELD));]sgx;
   print;
}

__DATA__
public Product getProduct(Node node) {
    // --- bunch of logic here ---
    if (nodeName.equals("ItemNum")) {
        product.setItemNumber(
            new Integer(StringUtils.parseInt(nodeValue, 0)));
    }
    if (nodeName.equals("AvgPrice")) {
        product.setAveragePrice(
            new Double(StringUtils.parseDouble(nodeValue, 0.0)));
    }
}
public Product getProduct(Node node) {
    // --- bunch of logic here ---
    if (nodeName.equals("ItemNum")) {
        product.setItemNumber(
            new Integer(StringUtils.parseInt(nodeValue, 0)));
    }
    if (nodeName.equals("AvgPrice")) {
        product.setAveragePrice(
            new Double(StringUtils.parseDouble(nodeValue, 0.0)));
    }
}

public Product getProduct(Node node) {
    // --- bunch of logic here ---
    if (nodeName.equals("ItemNum")) {
        product.setItemNumber(
            new Integer(StringUtils.parseInt(nodeValue, 0)));
    }
    if (nodeName.equals("AvgPrice")) {
        product.setAveragePrice(
            new Double(StringUtils.parseDouble(nodeValue, 0.0)));
    }
}