cs-xml/src/main/java/io/cloudslang/content/xml/services/RemoveService.java
/*
* Copyright 2022-2024 Open Text
* This program and the accompanying materials
* are made available under the terms of the Apache License v2.0 which accompany this distribution.
*
* The Apache License is available at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.cloudslang.content.xml.services;
import io.cloudslang.content.xml.entities.inputs.CommonInputs;
import io.cloudslang.content.xml.entities.inputs.CustomInputs;
import io.cloudslang.content.xml.utils.Constants;
import io.cloudslang.content.xml.utils.ResultUtils;
import io.cloudslang.content.xml.utils.XmlUtils;
import org.apache.commons.lang3.StringUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import javax.xml.namespace.NamespaceContext;
import javax.xml.transform.TransformerException;
import javax.xml.xpath.XPathExpressionException;
import java.util.HashMap;
import java.util.Map;
/**
* Created by markowis on 03/03/2016.
*/
public class RemoveService {
public Map<String, String> execute(CommonInputs commonInputs, CustomInputs customInputs) throws Exception {
Map<String, String> result = new HashMap<>();
try {
Document doc = XmlUtils.getDocument(commonInputs);
NamespaceContext context = XmlUtils.getNamespaceContext(commonInputs, doc);
NodeList nodeList = XmlUtils.evaluateXPathQuery(doc, context, commonInputs.getXPathQuery());
XmlUtils.validateNodeList(nodeList);
removeFromNodeList(nodeList, customInputs.getAttributeName());
ResultUtils.populateSuccessResult(result, Constants.SuccessMessages.REMOVE_SUCCESS, XmlUtils.nodeToString(doc));
} catch (XPathExpressionException e) {
ResultUtils.populateFailureResult(result, Constants.ErrorMessages.XPATH_PARSING_ERROR + e.getMessage());
} catch (TransformerException te) {
ResultUtils.populateFailureResult(result, Constants.ErrorMessages.TRANSFORMER_ERROR + te.getMessage());
}
return result;
}
private static void removeFromNodeList(NodeList nodeList, String attributeName) throws Exception {
for (int i = 0; i < nodeList.getLength(); i++) {
Node node = nodeList.item(i);
if (node.getNodeType() != Node.ELEMENT_NODE) {
throw new Exception(Constants.ErrorMessages.REMOVE_FAILURE + Constants.ErrorMessages.NEED_ELEMENT_TYPE);
}
if (StringUtils.isBlank(attributeName)) {
node.getParentNode().removeChild(node);
} else {
node.getAttributes().removeNamedItem(attributeName);
}
}
}
}