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Code Issues Releases Wiki Activity

Add XmlUtil.prettyFormatXml()

This commit is contained in:
Florian Schmaus 2017-09-10 16:46:26 +02:00
parent 8020fc1416
commit 255865f733
3 changed files with 109 additions and 45 deletions
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62
smack-core/src/main/java/org/jivesoftware/smack/util/XmlUtil.java Normal file
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@ -0,0 +1,62 @@
/**
*
* Copyright 2017 Florian Schmaus.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License 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 org.jivesoftware.smack.util;
import java.io.StringReader;
import java.io.StringWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
public class XmlUtil {
private static final Logger LOGGER = Logger.getLogger(XmlUtil.class.getName());
private static final TransformerFactory transformerFactory = TransformerFactory.newInstance();
static {
transformerFactory.setAttribute("indent-number", 2);
}
public static String prettyFormatXml(String xml) {
StreamSource source = new StreamSource(new StringReader(xml));
StringWriter stringWriter = new StringWriter();
StreamResult result = new StreamResult(stringWriter);
try {
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
// Transform the requested string into a nice formatted XML string
transformer.transform(source, result);
}
catch (TransformerException | IllegalArgumentException e) {
LOGGER.log(Level.SEVERE, "Transformer error", e);
return xml;
}
return stringWriter.toString();
}
}

44
smack-core/src/test/java/org/jivesoftware/smack/util/XmlUtilTest.java Normal file
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@ -0,0 +1,44 @@
/**
*
* Copyright 2017 Florian Schmaus.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License 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 org.jivesoftware.smack.util;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
public class XmlUtilTest {
@Test
public void prettyFormatXmlTest() {
final String uglyXml = "<foo attr1='value1' attr2='value2'><inner-element attr1='value1'>Test</inner-element></foo>";
final String prettyXml = XmlUtil.prettyFormatXml(uglyXml);
assertEquals("<foo attr1=\"value1\" attr2=\"value2\">\n <inner-element attr1=\"value1\">Test</inner-element>\n</foo>\n",
prettyXml);
}
@Test
public void prettyFormatIncompleteXmlTest() {
final String uglyXml = "<foo attr1='value1' attr2='value2'><inner-element attr1='value1'>Test</inner-element>";
final String prettyXml = XmlUtil.prettyFormatXml(uglyXml);
assertEquals("<foo attr1='value1' attr2='value2'><inner-element attr1='value1'>Test</inner-element>",
prettyXml);
}
}

48
smack-debug/src/main/java/org/jivesoftware/smackx/debugger/EnhancedDebugger.java
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@ -31,8 +31,6 @@ import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.Reader;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.Writer;
import java.net.URL;
import java.text.SimpleDateFormat;
@ -61,13 +59,6 @@ import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.text.BadLocationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.jivesoftware.smack.AbstractConnectionListener;
import org.jivesoftware.smack.ConnectionListener;
@ -85,6 +76,7 @@ import org.jivesoftware.smack.util.ObservableWriter;
import org.jivesoftware.smack.util.ReaderListener;
import org.jivesoftware.smack.util.StringUtils;
import org.jivesoftware.smack.util.WriterListener;
import org.jivesoftware.smack.util.XmlUtil;
import org.jxmpp.jid.EntityFullJid;
import org.jxmpp.jid.Jid;
@ -824,7 +816,7 @@ public class EnhancedDebugger extends SmackDebugger {
messagesTable.addRow(
new Object[] {
formatXML(packet.toXML().toString()),
XmlUtil.prettyFormatXml(packet.toXML().toString()),
dateFormatter.format(new Date()),
packetReceivedIcon,
packetTypeIcon,
@ -895,7 +887,7 @@ public class EnhancedDebugger extends SmackDebugger {
messagesTable.addRow(
new Object[] {
formatXML(packet.toXML().toString()),
XmlUtil.prettyFormatXml(packet.toXML().toString()),
dateFormatter.format(new Date()),
packetSentIcon,
packetTypeIcon,
@ -911,40 +903,6 @@ public class EnhancedDebugger extends SmackDebugger {
});
}
private String formatXML(String str) {
try {
// Use a Transformer for output
TransformerFactory tFactory = TransformerFactory.newInstance();
// Surround this setting in a try/catch for compatibility with Java 1.4. This setting is required
// for Java 1.5
try {
tFactory.setAttribute("indent-number", 2);
}
catch (IllegalArgumentException e) {
// Ignore
}
Transformer transformer = tFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
// Transform the requested string into a nice formatted XML string
StreamSource source = new StreamSource(new StringReader(str));
StringWriter sw = new StringWriter();
StreamResult result = new StreamResult(sw);
transformer.transform(source, result);
return sw.toString();
}
catch (TransformerConfigurationException tce) {
LOGGER.log(Level.SEVERE, "Transformer Factory error", tce);
}
catch (TransformerException te) {
LOGGER.log(Level.SEVERE, "Transformation error", te);
}
return str;
}
/**
* Returns true if the debugger's connection with the server is up and running.
*