Skip to content

Commit 53894c2

Browse files
PhilippSalvisbergPhilippSalvisberg
committed
convert XMLTools to Java
1 parent eec53c1 commit 53894c2

1 file changed

Lines changed: 115 additions & 71 deletions

File tree

‎sqldev/src/main/java/org/utplsql/sqldev/model/XMLTools.java‎

Lines changed: 115 additions & 71 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,5 @@
1-
/* Copyright 2018 Philipp Salvisberg <philipp.salvisberg@trivadis.com>
1+
/*
2+
* Copyright 2018 Philipp Salvisberg <philipp.salvisberg@trivadis.com>
23
*
34
* Licensed under the Apache License, Version 2.0 (the "License");
45
* you may not use this file except in compliance with the License.
@@ -12,77 +13,120 @@
1213
* See the License for the specific language governing permissions and
1314
* limitations under the License.
1415
*/
15-
package org.utplsql.sqldev.model
16+
package org.utplsql.sqldev.model;
1617

17-
import java.io.StringWriter
18-
import javax.xml.transform.OutputKeys
19-
import javax.xml.transform.TransformerFactory
20-
import javax.xml.transform.dom.DOMSource
21-
import javax.xml.transform.stream.StreamResult
22-
import javax.xml.xpath.XPathConstants
23-
import javax.xml.xpath.XPathFactory
24-
import org.w3c.dom.Element
25-
import org.w3c.dom.Node
26-
import org.w3c.dom.NodeList
18+
import java.io.StringWriter;
19+
import java.util.logging.Logger;
2720

28-
class XMLTools {
29-
val xpathFactory = XPathFactory.newInstance()
30-
val xpath = xpathFactory.newXPath()
31-
32-
def getNodeList(Node doc, String xpathString) {
33-
val expr = xpath.compile(xpathString);
34-
val NodeList nodeList = expr.evaluate(doc, XPathConstants.NODESET) as NodeList
35-
return nodeList
36-
}
37-
38-
def getNode(Node doc, String xpathString) {
39-
val expr = xpath.compile(xpathString);
40-
val Node node = expr.evaluate(doc, XPathConstants.NODE) as Node
41-
return node
42-
}
43-
44-
def void trimWhitespace(Node node) {
45-
val children = node.childNodes
46-
for (i : 0 ..< children.length) {
47-
val child = children.item(i)
48-
if (child.nodeType == Node.TEXT_NODE) {
49-
child.textContent = child.textContent.trim
50-
}
51-
trimWhitespace(child);
52-
}
53-
}
54-
55-
def nodeToString(Node node, String cdataSectionElements) {
56-
node.trimWhitespace
57-
val writer = new StringWriter()
58-
val factory = TransformerFactory.newInstance().newTransformer()
59-
factory.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes")
60-
factory.setOutputProperty(OutputKeys.INDENT, "yes")
61-
factory.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "3");
62-
factory.setOutputProperty(OutputKeys.CDATA_SECTION_ELEMENTS, cdataSectionElements)
63-
factory.transform(new DOMSource(node), new StreamResult(writer))
64-
val result = writer.toString()
65-
val fixedResult = result.replaceAll('''<!\[CDATA\[\s*\]\]>''',"")
66-
return fixedResult
67-
}
68-
69-
def getAttributeValue(Node node, String namedItem) {
70-
var String value = null
71-
if (node instanceof Element) {
72-
value = node.attributes?.getNamedItem(namedItem)?.nodeValue;
73-
}
74-
return value
75-
}
76-
77-
def getElementValue(Node node, String tagName) {
78-
return getElementNode(node, tagName)?.textContent
79-
}
21+
import javax.xml.XMLConstants;
22+
import javax.xml.transform.OutputKeys;
23+
import javax.xml.transform.Transformer;
24+
import javax.xml.transform.TransformerException;
25+
import javax.xml.transform.TransformerFactory;
26+
import javax.xml.transform.dom.DOMSource;
27+
import javax.xml.transform.stream.StreamResult;
28+
import javax.xml.xpath.XPath;
29+
import javax.xml.xpath.XPathConstants;
30+
import javax.xml.xpath.XPathExpression;
31+
import javax.xml.xpath.XPathExpressionException;
32+
import javax.xml.xpath.XPathFactory;
8033

81-
def getElementNode(Node node, String tagName) {
82-
var Node resultNode = null
83-
if (node instanceof Element) {
84-
resultNode = node.getElementsByTagName(tagName)?.item(0)
85-
}
86-
return resultNode
87-
}
34+
import org.utplsql.sqldev.exception.GenericRuntimeException;
35+
import org.w3c.dom.Element;
36+
import org.w3c.dom.NamedNodeMap;
37+
import org.w3c.dom.Node;
38+
import org.w3c.dom.NodeList;
39+
40+
public class XMLTools {
41+
private static final Logger logger = Logger.getLogger(XMLTools.class.getName());
42+
private final XPathFactory xpathFactory = XPathFactory.newInstance();
43+
private final XPath xpath = xpathFactory.newXPath();
44+
45+
public NodeList getNodeList(final Node doc, final String xpathString) {
46+
try {
47+
final XPathExpression expr = xpath.compile(xpathString);
48+
return ((NodeList) expr.evaluate(doc, XPathConstants.NODESET));
49+
} catch (XPathExpressionException e) {
50+
final String msg = "XPathExpressionException for " + xpathString + " due to " + e.getMessage();
51+
logger.severe(() -> msg);
52+
throw new GenericRuntimeException(msg, e);
53+
}
54+
}
55+
56+
public Node getNode(final Node doc, final String xpathString) {
57+
try {
58+
final XPathExpression expr = xpath.compile(xpathString);
59+
return ((Node) expr.evaluate(doc, XPathConstants.NODE));
60+
} catch (XPathExpressionException e) {
61+
final String msg = "XPathExpressionException for " + xpathString + " due to " + e.getMessage();
62+
logger.severe(() -> msg);
63+
throw new GenericRuntimeException(msg, e);
64+
}
65+
}
66+
67+
public void trimWhitespace(final Node node) {
68+
final NodeList children = node.getChildNodes();
69+
for (int i = 0; i < children.getLength(); i++) {
70+
final Node child = children.item(i);
71+
if (child.getNodeType() == Node.TEXT_NODE) {
72+
child.setTextContent(child.getTextContent().trim());
73+
}
74+
trimWhitespace(child);
75+
}
76+
}
77+
78+
public String nodeToString(final Node node, final String cdataSectionElements) {
79+
try {
80+
trimWhitespace(node);
81+
final StringWriter writer = new StringWriter();
82+
TransformerFactory factory = TransformerFactory.newInstance();
83+
factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
84+
final Transformer transformer = factory.newTransformer();
85+
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
86+
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
87+
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "3");
88+
transformer.setOutputProperty(OutputKeys.CDATA_SECTION_ELEMENTS, cdataSectionElements);
89+
transformer.transform( new DOMSource(node), new StreamResult(writer));
90+
final String result = writer.toString();
91+
return result.replaceAll("<!\\[CDATA\\[\\s*\\]\\]>", "");
92+
} catch (TransformerException e) {
93+
final String msg = "TransformerException for " + cdataSectionElements + " due to " + e.getMessage();
94+
logger.severe(() -> msg);
95+
throw new GenericRuntimeException(msg, e);
96+
}
97+
}
98+
99+
public String getAttributeValue(final Node node, final String namedItem) {
100+
String value = null;
101+
if (node instanceof Element) {
102+
final NamedNodeMap attributes = ((Element) node).getAttributes();
103+
if (attributes != null) {
104+
final Node item = attributes.getNamedItem(namedItem);
105+
if (item != null) {
106+
value = item.getNodeValue();
107+
}
108+
}
109+
}
110+
return value;
111+
}
112+
113+
public String getElementValue(final Node node, final String tagName) {
114+
String value = null;
115+
final Node item = getElementNode(node, tagName);
116+
if (item != null) {
117+
value = item.getTextContent();
118+
}
119+
return value;
120+
}
121+
122+
public Node getElementNode(final Node node, final String tagName) {
123+
Node resultNode = null;
124+
if (node instanceof Element) {
125+
NodeList list = ((Element) node).getElementsByTagName(tagName);
126+
if (list != null && list.getLength() > 0) {
127+
resultNode = list.item(0);
128+
}
129+
}
130+
return resultNode;
131+
}
88132
}

0 commit comments

Comments
 (0)