/**
* Global Sensor Networks (GSN) Source Code
* Copyright (c) 2006-2016, Ecole Polytechnique Federale de Lausanne (EPFL)
*
* This file is part of GSN.
*
* GSN is free 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, either version 3 of the License, or
* (at your option) any later version.
*
* GSN 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.
*
* You should have received a copy of the GNU General Public License
* along with GSN. If not, see <http://www.gnu.org/licenses/>.
*
* File: src/ch/epfl/gsn/wrappers/xBow/eKoWrapper.java
*
* @author Mehdi Riahi
* @author bgpearn
*
*/
package ch.epfl.gsn.wrappers.xBow;
import org.slf4j.LoggerFactory;
import org.slf4j.Logger;
import java.util.ArrayList;
import java.lang.Thread;
import java.io.*;
//import java.net.InetAddress;
import java.net.Socket;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.*;
import ch.epfl.gsn.beans.AddressBean;
import ch.epfl.gsn.beans.ContainerConfig;
import ch.epfl.gsn.beans.DataField;
import ch.epfl.gsn.beans.DataTypes;
import ch.epfl.gsn.beans.StreamElement;
import ch.epfl.gsn.wrappers.AbstractWrapper;
import javax.xml.parsers.ParserConfigurationException;
public class eKoWrapper extends AbstractWrapper {
private int DEFAULT_RATE = 5000;
private static int threadCounter = 0;
private final transient Logger logger = LoggerFactory.getLogger ( eKoWrapper.class );
private static final String [ ] FIELD_NAMES = new String [ ] { "amtype", "nodeid", "packetname",
"batteryV", "solarV", "enTemp",
"soilmoisture", "soiltemp",
"es1201Temp","es1201humid","es1201Dp",
"EtDp", "EtVWC", "EtEc", "EtTemp",
"sensorTable"};
private static final Byte [ ] FIELD_TYPES = new Byte [ ] { DataTypes.INTEGER, DataTypes.INTEGER, DataTypes.VARCHAR,
DataTypes.DOUBLE, DataTypes.DOUBLE, DataTypes.DOUBLE,
DataTypes.DOUBLE, DataTypes.DOUBLE,
DataTypes.DOUBLE, DataTypes.DOUBLE, DataTypes.DOUBLE,
DataTypes.DOUBLE, DataTypes.DOUBLE, DataTypes.DOUBLE, DataTypes.DOUBLE,
DataTypes.VARCHAR };
private static final String [ ] FIELD_DESCRIPTION = new String [ ] { "amType", "Node ID", "Packet Type",
"Battery Volts", "Solar Volts", "Internal Temp",
"Soil Moisture", "Soil Temperature",
"Ambient Temperature", "Ambient Humidity", "Ambient Dewpoint",
"Dielectric Permittivity", "Water Content VWC (%)", "Electrical Conductivity (accurate to 7 dS/m)", "Temperature (degC)",
"Sensor Table" };
private static final String [ ] FIELD_TYPES_STRING = new String [ ] { "int", "int", "varchar(50)",
"double", "double", "double",
"double", "double",
"double", "double", "double",
"double", "double", "double", "double",
"varchar(50)" };
private DataField[] outputStructure ;
private String host ;
private int port ;
private int rate ;
private String inputRate ;
private Integer amType;
private int nodeid ;
private String packetName;
private Double batteryV;
private Double solarV;
private Double enTemp;
private Double soilMoisture;
private Double soilTemp;
private Double es1201Temp;
private Double es1201Humidity;
private Double es1201Dp;
private Double EtDp;
private Double EtVWC;
private Double EtEc;
private Double EtTemp;
private String sensorTable;
// declare the socket object for client side
private Socket xmlSocket = null ;
private BufferedReader rd ;
private StreamElement streamEle ;
private String s = "" ; // xml packet
private DocumentBuilderFactory domfac ;
private DocumentBuilder dombuilder ;
private InputSource ins ;
private Document doc ;
private String bs ;
private int indexS ;
private int indexE ;
private boolean getxml ;
public boolean initialize ( ) {
/**
* check the host and port parameters.
*/
AddressBean addressBean = getActiveAddressBean( );
host = addressBean.getPredicateValue ( "host" );
if ( host == null || host.trim ( ).length ( ) == 0 ) {
logger.warn ( "The >host< parameter is missing from the RemoteWrapper wrapper." );
return false;
}
port = addressBean.getPredicateValueAsIntWithException("port");
if ( port > 65000 || port <= 0 ) {
logger.error("Remote wrapper initialization failed, bad port number:"+port);
return false;
}
inputRate = addressBean.getPredicateValue( "rate" );
if ( inputRate == null || inputRate.trim( ).length( ) == 0 ) rate = DEFAULT_RATE;
else
rate = Integer.parseInt( inputRate );
ArrayList<DataField > output = new ArrayList < DataField >();
for ( int i = 0 ; i < FIELD_NAMES.length ; i++ ) {
output.add( new DataField( FIELD_NAMES[ i ] , FIELD_TYPES_STRING[ i ] , FIELD_DESCRIPTION[ i ] ) );
}
outputStructure = output.toArray( new DataField[] {} );
return true;
}
public void run ( ) {
try {
// setup the socket connection
xmlSocket = new Socket(host, port);
rd = new BufferedReader(new InputStreamReader(xmlSocket.getInputStream()));
} catch (IOException e){
logger.warn(" The xml socket connection is not set up.");
logger.warn(" Cannot read from xmlSocket. ");}
// s = "";
logger.info("Is Timestamp Unique: " + isTimeStampUnique());
while ( isActive( ) ) {
getxml = false;
try {
Thread.sleep(rate);
} catch (InterruptedException e) {
logger.error(e.getMessage(),e);
} // sleep
try { // try 1
char[] c = new char[6000];
// initialize this char[]
for (int j = 0; j < c.length; j++){
c[j] = 0;
}
try {
rd.read(c);
} catch (Exception e) {
// TODO: handle exception
logger.warn("** Read Exception **");
} // try read
for (int j = 0; j < c.length; j++){
s = s + c[j];
}
s = s.trim();
getxml = true;
while (getxml) {
getxml = false;
try{
indexS = s.indexOf("<?xml");
indexE = s.indexOf("</MotePacket>", (indexS+17));
}catch (Exception e){
logger.error( e.getMessage( ) , e );}
if ((indexS >= 0) && (indexE > indexS + 17)) {
bs = s.substring(indexS, indexE + 13);
processXmlString(bs);
getxml = true;
}
if (s.length() > (indexE + 13)) {
s = s.substring((indexE + 14));
}
else {
s = "";
}
}
} catch (Exception e) { // try 1
logger.error( e.getMessage( ) , e );}
} // while ( isActive( )
} // run()
// for GSNv2
public void dispose ( ) {
threadCounter--;
}
// for release 1249
public void finalize ( ) {
threadCounter--;
}
public String getWrapperName() {
return "eKoWrapper";
}
public DataField[] getOutputFormat ( ) {
return outputStructure;
}
public void processXmlString(String xmls) {
try {
Thread.sleep(5);
} catch (InterruptedException e) {
logger.error(e.getMessage(),e);
}
try { // try 4
logger.info("[Try 4] xmls: "+ xmls);
//logger.info("getxml : "+ getxml);
// Create instance of DocumentBuilderFactory
domfac = DocumentBuilderFactory.newInstance();
try { // try 3
// Get the DocumentBuilder
dombuilder = domfac.newDocumentBuilder();
} catch (ParserConfigurationException e){ // try 3
logger.info(e.getMessage( ) , e );
}
try { // try 2
// Create instance of input source
ins = new InputSource();
// Initialize this input source as xmls
ins.setCharacterStream(new StringReader(xmls));
// Pass xmls stream to XML Parser
doc = dombuilder.parse(ins);
} catch (SAXException e){ // try 2
logger.info(e.getMessage( ) , e );
} catch (NullPointerException e){
logger.info(e.getMessage( ) , e );}
// Get the root element of XML packet
Element root = doc.getDocumentElement();
// Get the first level Node list
NodeList fields = root.getChildNodes();
// Get all fields' name
// start of second layer for 3
// Element 0 is <PacketName>eN2100 Internal Sensors</PacketName>
packetName = fields.item(0).getTextContent();
/* The remaining elements are in the form:
* <ParsedDataElement>
* <Name>nodeId</Name>
* <SpecialType>nodeid</SpecialType> // only some element and not used here.
* <ConvertedValue>2</ConvertedValue>
* <ConvertedValueType>uint16</ConvertedValueType>
* </ParsedDataElement>
*/
// Reset sensor values
batteryV = null;
solarV = null;
enTemp = null;
soilMoisture = null;
soilTemp = null;
EtDp = null;
EtVWC = null;
EtEc = null;
EtTemp = null;
es1201Temp = null;
es1201Humidity = null;
es1201Dp = null;
for(int i=1; i<fields.getLength() - 1; i++){
Element field = (Element)fields.item(i);
String name;
Element nameEle=(Element)field.getElementsByTagName("Name").item(0);
name = nameEle.getTextContent();
String value;
Element valueEle=(Element)field.getElementsByTagName("ConvertedValue").item(0);
value = valueEle.getTextContent();
if (name.equalsIgnoreCase("amtype")){
amType = Integer.parseInt(value);
}
if (name.equalsIgnoreCase("nodeid")){
nodeid = Integer.parseInt(value);
}
if (name.equals("batteryV")){
soilMoisture = Double.parseDouble(value);
}
if (name.equals("solarV")){
soilTemp = Double.parseDouble(value);
}
if (name.equals("internalTemp")){
EtDp = Double.parseDouble(value);
}
if (name.equals("soilMoisture")){
soilMoisture = Double.parseDouble(value);
}
if (name.equals("soilTemperature")){
soilTemp = Double.parseDouble(value);
}
if (name.equals("temperature")){
es1201Temp = Double.parseDouble(value);
}
if (name.equals("humidity")){
es1201Humidity = Double.parseDouble(value);
}
if (name.equals("dewPoint")){
es1201Dp = Double.parseDouble(value);
}
if (name.equals("Dp")){
EtDp = Double.parseDouble(value);
}
if (name.equals("VWC")){
EtVWC = Double.parseDouble(value);
}
if (name.equals("Ec")){
EtEc = Double.parseDouble(value);
}
if (name.equals("Temp")){
EtTemp = Double.parseDouble(value);
}
}
/* The last element is:
* <internal>
* <nodeId>2</nodeId> // only in eN2100
* <yieldAppId>1</yieldAppId>
* <sensorTable>eN2100_internal_sensor_results</sensorTable>
* </internal>
*/
sensorTable = null;
if (amType.equals(11)) {
Element internal_field = (Element)fields.item(fields.getLength() - 1);
Element sensorTableEle=(Element)internal_field.getElementsByTagName("sensorTable").item(0);
sensorTable = sensorTableEle.getTextContent();
}
// end of second layer for 3
logger.info("amType: " +amType +" Node ID: " + nodeid + " Packet Name " + packetName );
try { // try 1
streamEle = new StreamElement( FIELD_NAMES , FIELD_TYPES , new Serializable [ ] { amType, nodeid, packetName,
batteryV, solarV, enTemp,
soilMoisture, soilTemp,
es1201Temp, es1201Humidity, es1201Dp,
EtDp, EtVWC, EtEc, EtTemp,
sensorTable } );
postStreamElement (streamEle);
}catch (Exception e){ // try 1
logger.info(e.getMessage( ) , e );}
}catch (Exception e) { // try 4
logger.error( e.getMessage( ) , e );}
}
public boolean isTimeStampUnique() {
return false;
}
}