private static void test_dds() {
System.out.println("DDS test:");
DataDDS table = new DataDDS(new ServerVersion(2, 16));
table.setName("test_table");
// add variables to it
DUInt32 myUInt = new DUInt32("myUInt");
myUInt.setValue(42);
table.addVariable(myUInt);
// note that arrays and lists take their name from the addVariable method
DArray myArray = new DArray();
myArray.addVariable(new DByte("myArray"));
myArray.appendDim(10, "dummy");
myArray.setLength(10);
BytePrimitiveVector bpv = (BytePrimitiveVector) myArray.getPrimitiveVector();
for (int i = 0; i < 10; i++) bpv.setValue(i, (byte) (i * 10));
table.addVariable(myArray);
DList myList = new DList();
myList.addVariable(new DURL("myList"));
myList.setLength(10);
BaseTypePrimitiveVector btpv = (BaseTypePrimitiveVector) myList.getPrimitiveVector();
for (int i = 0; i < 10; i++) {
DURL testURL = new DURL();
testURL.setValue("http://" + i);
btpv.setValue(i, testURL);
}
table.addVariable(myList);
DStructure myStructure = new DStructure("myStructure");
DFloat64 structFloat = new DFloat64("structFloat");
structFloat.setValue(42.0);
myStructure.addVariable(structFloat);
DString structString = new DString("structString");
structString.setValue("test value");
myStructure.addVariable(structString);
table.addVariable(myStructure);
DGrid myGrid = new DGrid("myGrid");
DArray gridArray = (DArray) myArray.clone();
gridArray.setName("gridArray");
myGrid.addVariable(gridArray, DGrid.ARRAY);
DArray gridMap = new DArray();
gridMap.addVariable(new DInt32("gridMap"));
gridMap.appendDim(10, "dummy");
gridMap.setLength(10);
Int32PrimitiveVector ipv = (Int32PrimitiveVector) gridMap.getPrimitiveVector();
for (int i = 0; i < 10; i++) ipv.setValue(i, i * 10);
myGrid.addVariable(gridMap, DGrid.MAPS);
table.addVariable(myGrid);
// this is the one case where two DODS variables can have the same name:
// each row should have the same exact variables (name doesn't matter)
DSequence mySequence = new DSequence("mySequence");
mySequence.addVariable(new DInt32("seqInt32"));
mySequence.addVariable(new DString("seqString"));
Vector seqRow = new Vector(); // a row of the sequence
DInt32 seqVar1 = new DInt32("seqInt32");
seqVar1.setValue(1);
seqRow.addElement(seqVar1);
DString seqVar2 = new DString("seqString");
seqVar2.setValue("string");
seqRow.addElement(seqVar2);
mySequence.addRow(seqRow);
seqRow = new Vector(); // add a second row
seqVar1 = new DInt32("seqInt32");
seqVar1.setValue(3);
seqRow.addElement(seqVar1);
seqVar2 = new DString("seqString");
seqVar2.setValue("another string");
seqRow.addElement(seqVar2);
mySequence.addRow(seqRow);
table.addVariable(mySequence);
try {
table.checkSemantics();
System.out.println("DDS passed semantic check");
} catch (BadSemanticsException e) {
System.out.println("DDS failed semantic check:\n" + e);
}
try {
table.checkSemantics(true);
System.out.println("DDS passed full semantic check");
} catch (BadSemanticsException e) {
System.out.println("DDS failed full semantic check:\n" + e);
}
// print the declarations
System.out.println("declarations:");
table.print(System.out);
// print the data
System.out.println("\nData:");
table.printVal(System.out);
System.out.println();
// and read it programmatically
try {
int testValue1 = ((DUInt32) table.getVariable("myUInt")).getValue();
System.out.println("myUInt = " + testValue1);
byte testValue2 =
((BytePrimitiveVector) ((DArray) table.getVariable("myArray")).getPrimitiveVector())
.getValue(5);
System.out.println("myArray[5] = " + testValue2);
String testValue3 =
((DString)
((BaseTypePrimitiveVector)
((DList) table.getVariable("myList")).getPrimitiveVector())
.getValue(5))
.getValue();
System.out.println("myList[5] = " + testValue3);
double testValue4 =
((DFloat64) ((DStructure) table.getVariable("myStructure")).getVariable("structFloat"))
.getValue();
System.out.println("myStructure.structFloat = " + testValue4);
int testValue5 =
((Int32PrimitiveVector)
((DArray) ((DGrid) table.getVariable("myGrid")).getVariable("gridMap"))
.getPrimitiveVector())
.getValue(5);
System.out.println("myGrid.gridMap[5] = " + testValue5);
String testValue7 =
((DString) ((DSequence) table.getVariable("mySequence")).getVariable(0, "seqString"))
.getValue();
System.out.println("mySequence[0].seqString = " + testValue7);
} catch (NoSuchVariableException e) {
System.out.println("Error getting variable:\n" + e);
}
System.out.println();
DataDDS table2 = (DataDDS) table.clone(); // test Cloneable interface
try {
table2.checkSemantics();
System.out.println("DDS passed semantic check");
} catch (BadSemanticsException e) {
System.out.println("DDS failed semantic check:\n" + e);
}
try {
table2.checkSemantics(true);
System.out.println("DDS passed full semantic check");
} catch (BadSemanticsException e) {
System.out.println("DDS failed full semantic check:\n" + e);
}
// print the declarations and data
System.out.println("clone declarations:");
table2.print(System.out);
System.out.println("\nData:");
table2.printVal(System.out);
System.out.println();
// add some values to the original table
DInt32 myNewInt = new DInt32("myNewInt");
myNewInt.setValue(420);
table.addVariable(myNewInt);
// verify that they aren't in the cloned table
try {
DInt32 testInt = (DInt32) table2.getVariable("myNewInt");
System.out.println("Error: value from table in table2");
} catch (NoSuchVariableException e) {
System.out.println("Variable cloning looks good");
}
}
public void process(InputStream is) throws DAP2Exception, ParseException {
dds.parseXML(is, false);
}
public void process(InputStream is) throws ParseException, DAP2Exception, IOException {
dds.parse(is);
dds.readData(is, statusUI);
}
/**
* ************************************************************************ Default handler for
* OPeNDAP ascii requests. Returns OPeNDAP DAP2 data in comma delimited ascii columns for
* ingestion into some not so OPeNDAP enabled application such as MS-Excel. Accepts constraint
* expressions in exactly the same way as the regular OPeNDAP dataserver.
*
* @param request
* @param response
* @param dataSet
* @throws opendap.dap.DAP2Exception
* @throws ParseException
*/
public void sendASCII(HttpServletRequest request, HttpServletResponse response, String dataSet)
throws DAP2Exception, ParseException {
if (Debug.isSet("showResponse"))
System.out.println(
"Sending OPeNDAP ASCII Data For: "
+ dataSet
+ " CE: '"
+ request.getQueryString()
+ "'");
String requestURL, ce;
DConnect2 url;
DataDDS dds;
if (request.getQueryString() == null) {
ce = "";
} else {
ce = "?" + request.getQueryString();
}
int suffixIndex = request.getRequestURL().toString().lastIndexOf(".");
requestURL = request.getRequestURL().substring(0, suffixIndex);
if (Debug.isSet("showResponse")) {
System.out.println("New Request URL Resource: '" + requestURL + "'");
System.out.println("New Request Constraint Expression: '" + ce + "'");
}
try {
if (_Debug) System.out.println("Making connection to .dods service...");
url = new DConnect2(requestURL, true);
if (_Debug) System.out.println("Requesting data...");
dds = url.getData(ce, null, new asciiFactory());
if (_Debug) System.out.println(" ASC DDS: ");
if (_Debug) dds.print(System.out);
PrintWriter pw = new PrintWriter(response.getOutputStream());
PrintWriter pwDebug = new PrintWriter(System.out);
if (dds != null) {
dds.print(pw);
pw.println("---------------------------------------------");
String s = "";
Enumeration e = dds.getVariables();
while (e.hasMoreElements()) {
BaseType bt = (BaseType) e.nextElement();
if (_Debug) ((toASCII) bt).toASCII(pwDebug, true, null, true);
// bt.toASCII(pw,addName,getNAme(),true);
((toASCII) bt).toASCII(pw, true, null, true);
}
} else {
String betterURL =
request.getRequestURL().substring(0, request.getRequestURL().lastIndexOf("."))
+ ".dods?"
+ request.getQueryString();
pw.println("-- ASCII RESPONSE HANDLER PROBLEM --");
pw.println("");
pw.println("The ASCII response handler was unable to obtain requested data set.");
pw.println("");
pw.println("Because this handler calls it's own OPeNDAP server to get the requested");
pw.println("data the source error is obscured.");
pw.println("");
pw.println("To get a better idea of what is going wrong, try requesting the URL:");
pw.println("");
pw.println(" " + betterURL);
pw.println("");
pw.println("And then look carefully at the returned document. Note that if you");
pw.println("are using a browser to access the URL the returned document will");
pw.println("more than likely be treated as a download and written to your");
pw.println("local disk. It should be a file with the extension \".dods\"");
pw.println("");
pw.println("Locate it, open it with a text editor, and find your");
pw.println("way to happiness and inner peace.");
pw.println("");
}
// pw.println("</pre>");
pw.flush();
if (_Debug) pwDebug.flush();
} catch (FileNotFoundException fnfe) {
System.out.println("OUCH! FileNotFoundException: " + fnfe.getMessage());
fnfe.printStackTrace(System.out);
} catch (MalformedURLException mue) {
System.out.println("OUCH! MalformedURLException: " + mue.getMessage());
mue.printStackTrace(System.out);
} catch (IOException ioe) {
System.out.println("OUCH! IOException: " + ioe.getMessage());
ioe.printStackTrace(System.out);
} catch (Throwable t) {
System.out.println("OUCH! Throwable: " + t.getMessage());
t.printStackTrace(System.out);
}
if (_Debug) System.out.println(" GetAsciiHandler done");
}
