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gurux.dlms.java package is used to communicate with DLMS devices.
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//
// --------------------------------------------------------------------------
// Gurux Ltd
//
//
//
// Filename: $HeadURL$
//
// Version: $Revision$,
// $Date$
// $Author$
//
// Copyright (c) Gurux Ltd
//
//---------------------------------------------------------------------------
//
// DESCRIPTION
//
// This file is a part of Gurux Device Framework.
//
// Gurux Device Framework is Open Source software; you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; version 2 of the License.
// Gurux Device Framework is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// More information of Gurux products: https://www.gurux.org
//
// This code is licensed under the GNU General Public License v2.
// Full text may be retrieved at http://www.gnu.org/licenses/gpl-2.0.txt
//---------------------------------------------------------------------------
package gurux.dlms;
import java.io.StringReader;
import java.io.StringWriter;
import javax.xml.XMLConstants;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;
import gurux.dlms.enums.Command;
public class GXDLMSXmlPdu {
/**
* XML Node.
*/
private Node xmlNode;
/**
* Command.
*/
private int command;
/**
* Description of the test.
*/
private String description;
/**
* Shown error if this test fails.
*/
private String error;
/**
* Error url if test fails.
*/
private String errorUrl;
/**
* @return XML Node.
*/
public final Node getXmlNode() {
return xmlNode;
}
/**
* @return Command.
*/
public final int getCommand() {
return command;
}
/**
* @param value
* Command.
*/
public final void setCommand(final int value) {
command = value;
}
/**
* Generated Pdu.
*/
private byte[] data;
/**
* @return Generated Pdu.
*/
public final byte[] getData() {
return data;
}
/**
* @param value
* Generated Pdu.
*/
public final void setData(final byte[] value) {
data = value;
}
/**
* @return Description of the test.
*/
public final String getDescription() {
return description;
}
/**
* @param value
* Description of the test.
*/
public final void setDescription(final String value) {
description = value;
}
/**
* @return Shown error if this test fails.
*/
public final String getError() {
return error;
}
/**
* @param value
* Shown error if this test fails.
*/
public final void setError(final String value) {
error = value;
}
/**
* @return Error url if test fails.
*/
public final String getErrorUrl() {
return errorUrl;
}
/**
* @param value
* Error url if test fails.
*/
public final void setErrorUrl(final String value) {
errorUrl = value;
}
/**
* Sleep time in milliseconds.
*/
private int privateSleep;
public final int getSleep() {
return privateSleep;
}
public final void setSleep(int value) {
privateSleep = value;
}
@SuppressWarnings("squid:S4435")
static String getOuterXml(Node node) throws TransformerException {
Transformer transformer =
TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty("omit-xml-declaration", "yes");
StringWriter writer = new StringWriter();
transformer.transform(new DOMSource(node), new StreamResult(writer));
return writer.toString();
}
/**
* @return PDU as XML string.
*/
public final String getPduAsXml() {
if (getXmlNode() == null) {
return "";
}
try {
return getOuterXml(xmlNode);
} catch (Exception ex) {
throw new IllegalArgumentException(ex.getMessage());
}
}
@SuppressWarnings("squid:S1066")
private static void compare(final Node expectedNode, final Node actualNode,
final java.util.ArrayList list) {
int cnt = expectedNode.getChildNodes().getLength();
if (expectedNode.getNodeName()
.compareTo(actualNode.getNodeName()) != 0) {
Node a = expectedNode.getAttributes().getNamedItem("Value");
if (expectedNode.getNodeName().compareTo("None") == 0 && a != null
&& a.getNodeValue().compareTo("*") == 0) {
return;
}
list.add(expectedNode.getNodeName() + "-"
+ actualNode.getNodeName());
return;
} else if (cnt != actualNode.getChildNodes().getLength()) {
// If we are reading array items count might vary.
if (expectedNode.getNodeName().equals("Array")
|| expectedNode.getNodeName().equals("Structure")) {
if (cnt < actualNode.getChildNodes().getLength()) {
// Check only first If meter is returning more nodes what we
// have in template.
} else {
cnt = actualNode.getChildNodes().getLength();
}
} else {
list.add("Different amount: " + expectedNode.getNodeName() + "-"
+ actualNode.getNodeName());
return;
}
}
for (int pos = 0; pos != cnt; ++pos) {
if (actualNode.getChildNodes().item(pos) == null) {
list.add("Different values. Expected: '"
+ expectedNode.getChildNodes().item(pos).getNodeValue()
+ "'. Actual: 'null'.");
} else if (actualNode.getChildNodes().item(pos).getChildNodes()
.getLength() != 0) {
compare(expectedNode.getChildNodes().item(pos),
actualNode.getChildNodes().item(pos), list);
} else if (expectedNode.getChildNodes().item(pos).getNodeValue()
.compareTo(actualNode.getChildNodes().item(pos)
.getNodeValue()) != 0) {
Node a = expectedNode.getChildNodes().item(pos).getAttributes()
.getNamedItem("Value");
if (a == null
|| (expectedNode.getChildNodes().item(pos).getNodeName()
.compareTo("None") != 0
&& expectedNode.getChildNodes().item(pos)
.getNodeName()
.compareTo(actualNode.getChildNodes()
.item(pos).getNodeName()) != 0)
|| a.getNodeValue().compareTo("*") != 0)
// If value type is not defined.
{
if (!expectedNode.getFirstChild().getNodeName()
.equals("Structure")
&& !expectedNode.getFirstChild().getNodeName()
.equals("Array")
&& !expectedNode.getParentNode().getNodeName()
.equals("Array")) {
list.add("Different values. Expected: '"
+ expectedNode.getChildNodes().item(pos)
.getNodeValue()
+ "'. Actual: '" + actualNode.getChildNodes()
.item(pos).getNodeValue()
+ "'.");
}
}
}
}
}
/**
* Compare load XML.
*
* @param xml
* XML string to compare.
* @return True, if content is same.
*/
@SuppressWarnings("squid:S00112")
public final java.util.ArrayList compare(String xml) {
java.util.ArrayList list = new java.util.ArrayList();
// XmlDocument doc2 = new XmlDocument();
// doc2.LoadXml(xml);
DocumentBuilder docBuilder;
Document doc;
DocumentBuilderFactory docBuilderFactory =
DocumentBuilderFactory.newInstance();
try {
docBuilderFactory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING,
true);
docBuilder = docBuilderFactory.newDocumentBuilder();
doc = docBuilder.parse(new InputSource(new StringReader(xml)));
} catch (Exception e) {
throw new RuntimeException(e.getMessage());
}
compare(getXmlNode(), doc.getDocumentElement(), list);
return list;
}
/**
* Is command request. This information is used to tell is PDU send.
*
* @return True, if command is request.
*/
public final boolean isRequest() {
boolean ret;
switch (command) {
case Command.SNRM:
case Command.AARQ:
case Command.READ_REQUEST:
case Command.GLO_READ_REQUEST:
case Command.WRITE_REQUEST:
case Command.GLO_WRITE_REQUEST:
case Command.GET_REQUEST:
case Command.GLO_GET_REQUEST:
case Command.SET_REQUEST:
case Command.GLO_SET_REQUEST:
case Command.METHOD_REQUEST:
case Command.GLO_METHOD_REQUEST:
case Command.DISCONNECT_REQUEST:
case Command.RELEASE_REQUEST:
ret = true;
break;
default:
ret = false;
break;
}
return ret;
}
/**
* Constructor.
*/
public GXDLMSXmlPdu() {
}
/**
* Constructor.
*
* @param command
* Generated command.
* @param xml
* Generated PDU as XML.
* @param pdu
* Generated PDU.
*/
public GXDLMSXmlPdu(final int command, final Node xml, final byte[] pdu) {
setCommand(command);
xmlNode = xml;
setData(pdu);
}
@Override
public String toString() {
return getPduAsXml();
}
}