/**
* Implementation of the getData method.
*
* @param category the data category
* @param dataSelection the selection properties
* @param requestProperties special request properties
* @return the data based on the input parameters
* @throws DataCancelException if the request was canceled
* @throws RemoteException Java RMI problem
* @throws VisADException problem creating the Data object
*/
protected Data getData(
DataCategory category, DataSelection dataSelection, Hashtable requestProperties)
throws VisADException, RemoteException, DataCancelException {
try {
// This could be simple text
if (!url.startsWith("http:")) {
return new visad.Text(url);
}
return new visad.Text(IOUtil.readContents(url));
} catch (java.io.FileNotFoundException fnfe) {
LogUtil.printException(log_, "getData", fnfe);
} catch (java.io.IOException ioe) {
LogUtil.printException(log_, "getData", ioe);
}
return null;
}
/**
* Save the list of ParamInfo-s into the given file
*
* @param infoList List of infos
* @param filename The filename to write to
*/
public void doSave(List infoList, String filename) {
try {
Element root = createDom(XmlUtil.makeDocument(), infoList);
IOUtil.writeFile(filename, XmlUtil.toString(root));
} catch (Exception exc) {
LogUtil.printException(log_, "Error writing file", exc);
}
}
/**
* Load in all of the {@link ucar.unidata.idv.ui.ParamInfo}-s pointed to by the given resource
* collection
*
* @param resources The resources (e.g., the paramdefaults.xml)
*/
private void init(XmlResourceCollection resources) {
try {
for (int i = 0; i < resources.size(); i++) {
Element root = resources.getRoot(i, false);
if (root != null) {
loadParamDefaults(root, false);
}
}
} catch (Exception exc) {
LogUtil.printException(log_, "Loading parameter to color table properties ", exc);
}
}
/** Write out the user's editable param infos */
private void saveData() {
Document usersDoc = XmlUtil.makeDocument();
Element usersRoot = createDom(usersDoc, getFirstTable().getParamInfoList());
try {
resources.setWritableDocument(usersDoc, usersRoot);
resources.writeWritable();
// Reinitialize the static state
paramInfos = new ArrayList();
paramToInfo = new Hashtable();
init(resources);
} catch (Exception exc) {
LogUtil.printException(log_, "writing aliases xml", exc);
}
}
/** Import an xml param defaults file */
public void doImport() {
try {
String filename = FileManager.getReadFile(FileManager.FILTER_XML);
if (filename == null) {
return;
}
Element root = XmlUtil.getRoot(IOUtil.readContents(filename));
if (root == null) {
return;
}
List infos = createParamInfoList(root);
ParamDefaultsTable table = getCurrentTable();
table.getParamInfoList().addAll(infos);
table.tableChanged();
saveData();
} catch (Exception exc) {
LogUtil.printException(log_, "Error importing file", exc);
}
}
/**
* Get the color table, range, etc, from the given display control and save them as the param
* defaults for its data choice
*
* @param displayControl the display control to get state from
*/
public void saveDefaults(DisplayControlImpl displayControl) {
try {
List choices = displayControl.getMyDataChoices();
if (choices.size() != 1) {
return;
}
DataChoice dc = (DataChoice) choices.get(0);
String name = dc.getName();
String ctName =
((displayControl.getColorTable() != null)
? displayControl.getColorTable().getName()
: null);
ParamInfo newParamInfo =
new ParamInfo(
name,
ctName,
displayControl.getRange(),
displayControl.getContourInfo(),
displayControl.getDisplayUnit());
ParamDefaultsTable firstTable = getFirstTable();
if (!firstTable.editRow(newParamInfo, false)) {
return;
}
ParamInfo origParamInfo = firstTable.findByName(dc.getName());
if (origParamInfo == null) {
firstTable.addBeginning(newParamInfo);
firstTable.getSelectionModel().setSelectionInterval(0, 0);
} else {
origParamInfo.initWith(newParamInfo);
firstTable.tableChanged();
firstTable.selectParamInfo(origParamInfo);
}
saveData();
show();
GuiUtils.showComponentInTabs(firstTable);
} catch (Exception exc) {
LogUtil.printException(log_, "copying defaults", exc);
}
}
/**
* Wrapper method, calling into idv
*
* @param msg The message
* @param excp The exception
*/
public static void logException(String msg, Throwable excp) {
LogUtil.printException(log_, msg, excp);
}
/**
* Create the param infos from the given xml root
*
* @param root The xml root
* @return List of param infos
*/
private List createParamInfoList(Element root) {
List infos = new ArrayList();
if (!root.getTagName().equals(TAG_PARAMS)) {
try {
Object obj = getIdv().getEncoderForRead().toObject(root);
if (obj instanceof List) {
infos.addAll((List) obj);
} else {
System.err.println("Unknown object type: " + obj.getClass().getName());
}
} catch (Exception exc) {
System.err.println("Error reading param defaults");
}
return infos;
}
List nodes = XmlUtil.findChildren(root, TAG_PARAM);
for (int i = 0; i < nodes.size(); i++) {
Element child = (Element) nodes.get(i);
Range range = null;
Unit displayUnit = null;
ContourInfo contourInfo = null;
String paramName = XmlUtil.getAttribute(child, ATTR_NAME);
String colorTableName = XmlUtil.getAttribute(child, ATTR_COLORTABLE, (String) null);
String range_min = XmlUtil.getAttribute(child, ATTR_RANGE_MIN, (String) null);
String range_max = XmlUtil.getAttribute(child, ATTR_RANGE_MAX, (String) null);
String unitName = XmlUtil.getAttribute(child, ATTR_UNIT, (String) null);
String ci_interval = XmlUtil.getAttribute(child, ATTR_CI_INTERVAL, (String) null);
String ci_base = XmlUtil.getAttribute(child, ATTR_CI_BASE, (String) null);
String ci_min = XmlUtil.getAttribute(child, ATTR_CI_MIN, range_min);
String ci_max = XmlUtil.getAttribute(child, ATTR_CI_MAX, range_max);
boolean ci_dash = XmlUtil.getAttribute(child, ATTR_CI_DASH, DFLT_CI_DASH);
boolean ci_label = XmlUtil.getAttribute(child, ATTR_CI_LABEL, DFLT_CI_LABEL);
String ci_width = XmlUtil.getAttribute(child, ATTR_CI_WIDTH, String.valueOf(DFLT_CI_WIDTH));
if (unitName != null) {
try {
displayUnit = ucar.visad.Util.parseUnit(unitName);
} catch (Exception e) {
LogUtil.printException(log_, "Creating unit: " + unitName, e);
}
}
if ((ci_interval != null) || (ci_base != null)) {
if (ci_interval == null) {
ci_interval = "NaN";
}
if (ci_base == null) {
ci_base = "NaN";
}
if (ci_min == null) {
ci_min = "NaN";
}
if (ci_max == null) {
ci_max = "NaN";
}
if (ci_width == null) {
ci_width = "1";
}
contourInfo =
new ContourInfo(
ci_interval,
Misc.parseDouble(ci_base),
Misc.parseDouble(ci_min),
Misc.parseDouble(ci_max),
ci_label,
ci_dash,
ContourInfo.DEFAULT_FILL,
Misc.parseDouble(ci_width));
}
if ((ci_dash != DFLT_CI_DASH) || (ci_label != DFLT_CI_LABEL)) {
if (contourInfo == null) {
contourInfo = new ContourInfo(Double.NaN, Double.NaN, Double.NaN, Double.NaN);
contourInfo.setIsLabeled(ci_label);
contourInfo.setDashOn(ci_dash);
}
}
if ((range_min != null) && (range_max != null)) {
range = new Range(Misc.parseDouble(range_min), Misc.parseDouble(range_max));
}
ParamInfo paramInfo =
new ParamInfo(paramName, colorTableName, range, contourInfo, displayUnit);
infos.add(paramInfo);
}
return infos;
}