import javax.xml.soap.*;
import java.util.Iterator;
import java.net.URL;
import java.io.*;
public class Client {
public static void main(String[] args) {
try {
SOAPConnectionFactory soapConnectionFactory = SOAPConnectionFactory.newInstance();
SOAPConnection connection = soapConnectionFactory.createConnection();
SOAPMessage message = prepareMessage();
System.out.print("\nPrinting the message that is being sent: \n\n");
message.writeTo(System.out);
System.out.println("\n\n");
URL endpoint = new URL("https://opendap.co-ops.nos.noaa.gov/axis/services/Datums");
SOAPMessage response = connection.call(message, endpoint);
connection.close();
/*
System.out.println("\nPrinting the respone that was recieved: \n\n" );
response.writeTo(System.out);
*/
//Uncoment this part if you want the response to be saved locally in an XML file
/*
FileOutputStream fout = new FileOutputStream ("SoapResponse.xml");
response.writeTo(fout);
fout.close();
*/
//You can also stores the response as a String
/*
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.writeTo( out );
String str = out.toString();
*/
System.out.println("\n\nIterating through the response object to get the values:\n\n");
SOAPBody responseBody = response.getSOAPBody();
//Checking for errors
if (responseBody.hasFault()) {
SOAPFault fault = responseBody.getFault();
String actor = fault.getFaultActor();
System.out.println("Fault contains: ");
System.out.println("Fault code: " + fault.getFaultCodeAsName().getQualifiedName());
System.out.println("Fault string: " + fault.getFaultString());
if (actor != null) {
System.out.println("Actor: " + actor);
}
} else {
Iterator iterator = responseBody.getChildElements();
Iterator iterator2 = null;
String tagName = null;
SOAPElement se = null;
if (iterator.hasNext()) {
se = (SOAPElement) iterator.next();
iterator = se.getChildElements();
while (iterator.hasNext()) {
se = (SOAPElement) iterator.next();
printMetadata(se);
tagName = se.getElementName().getLocalName();
if ("datums".equals(tagName) || "MinMaxWL".equals(tagName)) {
iterator2 = se.getChildElements();
while (iterator2.hasNext()) {
se = (SOAPElement) iterator2.next();
printData(se);
}
}
}
}
}
} catch (SOAPException e) {
System.err.println("ERROR: ******* " + e.toString());
} catch (IOException io) {
System.err.println("ERROR: ******* " + io.toString());
}
}
public static SOAPMessage prepareMessage() {
SOAPMessage message = null;
try {
SOAPFactory soapFactory = SOAPFactory.newInstance();
MessageFactory factory = MessageFactory.newInstance();
message = factory.createMessage();
SOAPBody body = message.getSOAPBody();
Name bodyName = soapFactory.createName("getDatumsAndMetadata", "datums",
"https://opendap.co-ops.nos.noaa.gov/axis/webservices/datums/wsdl");
SOAPBodyElement bodyElement = body.addBodyElement(bodyName);
//Constructing the body for the request
Name name = soapFactory.createName("stationId");
SOAPElement symbol = bodyElement.addChildElement(name);
symbol.addTextNode("8454000");
name = soapFactory.createName("epoch");
symbol = bodyElement.addChildElement(name);
symbol.addTextNode("A");
name = soapFactory.createName("unit");
symbol = bodyElement.addChildElement(name);
symbol.addTextNode("0");
} catch (SOAPException e) {
System.err.println("ERROR: ******* " + e.toString());
}
return message;
}
public static void printMetadata(SOAPElement se) {
String tagName = se.getElementName().getLocalName();
if (tagName != null) {
if ("stationId".equals(tagName)) {
System.out.println("Printing Metadata \n");
System.out.println("Station ID : " + se.getValue());
} else if ("stationName".equals(tagName)) {
System.out.println("station Name : " + se.getValue());
} else if ("latitude".equals(tagName)) {
System.out.println("Latitude : " + se.getValue());
} else if ("longitude".equals(tagName)) {
System.out.println("Longitude : " + se.getValue());
} else if ("state".equals(tagName)) {
System.out.println("State : " + se.getValue());
} else if ("dataSource".equals(tagName)) {
System.out.println("Data Source : " + se.getValue());
} else if ("status".equals(tagName)) {
System.out.println("Status : " + se.getValue());
} else if ("epoch".equals(tagName)) {
System.out.println("Epoch : " + se.getValue());
} else if ("unit".equals(tagName)) {
System.out.println("Unit : " + se.getValue() + "\n");
} else if ("elevation".equals(tagName)) {
System.out.println("Elevation : " + se.getValue() + "\n");
System.out.println("Printing the data \n");
}
}
}
public static void printData(SOAPElement se) {
String tagName = se.getElementName().getLocalName();
if (tagName != null) {
if (tagName.equals("MHHW")) {
System.out.println("MHHW : " + se.getValue());
} else if (tagName.equals("MHW")) {
System.out.println("MHW : " + se.getValue());
} else if (tagName.equals("DTL")) {
System.out.println("DTL : " + se.getValue());
} else if (tagName.equals("MTL")) {
System.out.println("MTL : " + se.getValue());
} else if (tagName.equals("MSL")) {
System.out.println("MSL : " + se.getValue());
} else if (tagName.equals("MLW")) {
System.out.println("MLW : " + se.getValue());
} else if (tagName.equals("MLLW")) {
System.out.println("MLLW : " + se.getValue());
} else if (tagName.equals("GT")) {
System.out.println("GT : " + se.getValue());
} else if (tagName.equals("MN")) {
System.out.println("MN : " + se.getValue());
} else if (tagName.equals("DHQ")) {
System.out.println("DHQ : " + se.getValue());
} else if (tagName.equals("DLQ")) {
System.out.println("DLQ : " + se.getValue());
} else if (tagName.equals("HWI")) {
System.out.println("HWI : " + se.getValue());
} else if (tagName.equals("LWI")) {
System.out.println("LWI : " + se.getValue());
} else if (tagName.equals("NAVD")) {
System.out.println("NAVD : " + se.getValue() + "\n");
} else if (tagName.equals("maxWaterLevel")) {
System.out.println("Max Water Level : " + se.getValue());
} else if (tagName.equals("maxDateTime")) {
System.out.println("Max Date Time : " + se.getValue());
} else if (tagName.equals("minWaterLevel")) {
System.out.println("Min Water Level : " + se.getValue());
} else if (tagName.equals("minDateTime")) {
System.out.println("Min Date Time : " + se.getValue() + "\n");
}
}
}
}
/****************************************************
SAMPLE RUN
>java Client
Printing the message that is being sent:
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Header/>
<SOAP-ENV:Body>
<datums:getDatumsAndMetadata xmlns:datums="https://opendap.co-ops.nos.noaa.gov/axis/webservices/datums/wsdl">
<stationId>8454000</stationId>
<epoch>A</epoch>
<unit>0</unit>
</datums:getDatumsAndMetadata>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
Iterating through the response object to get the values:
Printing Metadata
Station ID : 8454000
station Name : Providence
Latitude : 41.8071
Longitude : -71.4012
State : RI
Data Source : USDOC/NOAA/NOS/COOPS(Center for Operational Oceanographic Products and Services)
Status : Accepted
Epoch : Current
Unit : Meters
Elevation : Elevation is on Station Datum. To refer Water Level Heights to a Tidal Datum, apply the desired Datum value
Printing the data
MHHW : 2.539
MHW : 2.464
DTL : 1.802
MTL : 1.791
MSL : 1.749
MLW : 1.119
MLLW : 1.064
GT : 1.476
MN : 1.346
DHQ : 0.075
DLQ : 0.055
HWI : 0.477
LWI : 5.921
NAVD : 1.818
Max Water Level : 6.401
Max Date Time : 1938-09-21 00:00
Min Water Level : -0.03
Min Date Time : 1959-01-05 21:36
**********************************************************/