DOMParserUtil { public static void replaceNodeText(Document document, String containerNodeName, String nodeName, String toReplace, String replacement) { asStream(document.getElementsByTagName(containerNodeName)) .forEach(containerNode -> asStream(containerNode.getChildNodes()) .filter(childNode -> Objects.equals(nodeName, childNode.getNodeName()) && Objects.equals(toReplace, childNode.getTextContent())) .forEach(childNode -> childNode.setTextContent(replacement))); } private  DOMParserUtil(); static String cleanupNodes(String fullXml, String containerNodeName, String nodeToRemoveName); static void cleanupNodes(Document document, String containerNodeName, String nodeToRemoveName); static void replaceNodeText(Document document, String containerNodeName, String nodeName, String toReplace, String replacement); static String replaceNodeName(Document document, String containerNodeName, String childNodeNameToReplace, String childNodeNameReplacement); static String getAttributeValue(Node containerNode, String attributeName); static Map<Node, String> getAttributeValues(Document document, String containerNodeName, String attributeName); static Map<Node, String> getAttributeValues(Document document, String attributeName); static void setAttributeValue(Document document, String containerNodeName, String attributeName, String attributeValue); static Map<Node, Node> createNodes(Document document, String containerNodeName, String childNodeName, String nodeContent); static Map<Node, Node> createNestedNodes(Document document, String mainContainerNodeName, String containerNodeName, String childNodeName, String nodeContent); static Node createNodeAtPosition(Node containerNode, String nodeToCreateName, String nodeContent, Integer position); static Map<Node, List<Node>> getChildrenNodesMap(String fullXml, String containerNodeName, String childNodeName); static Map<Node, List<Node>> getChildrenNodesMap(Document document, String containerNodeName, String childNodeName); static Map<Node, List<Node>> getChildrenNodesMap(Node node, String containerNodeName, String childNodeName); static List<Node> getChildrenNodesList(Node node, String childNodeName); static Map<Node, List<Node>> getNestedChildrenNodesMap(Document document, String mainContainerNodeName, String containerNodeName, String childNodeName); static List<Node> getNestedChildrenNodesList(Document document, String grandParentNodeName, String parentNodeName, String childNodeName); static List<Node> getNestedChildrenNodesList(Node node, String containerName, String childNodeName); static Document getDocument(String xml); static String getString(Document toRead);  }
@Test public void replaceNodeText() throws Exception { final String replacement = "replacement"; Document document = DOMParserUtil.getDocument(XML); DOMParserUtil.replaceNodeText(document, MAIN_NODE, TEST_NODE, TEST_NODE_CONTENT, replacement); final Map<Node, List<Node>> retrieved = DOMParserUtil.getChildrenNodesMap(document, MAIN_NODE, TEST_NODE); assertNotNull(retrieved); assertEquals(1, retrieved.size()); List<Node> testNodes = retrieved.values().iterator().next(); assertNotNull(testNodes); assertEquals(1, testNodes.size()); assertEquals(replacement, testNodes.get(0).getTextContent()); }