public Map<String, Object> grid() throws Exception {
Element gridElement = ReaderUtils.getChildElement(coverage, "grid");
if (gridElement == null) {
return null;
}
HashMap<String, Object> grid = new HashMap<String, Object>();
grid.put(
"dimension", Integer.parseInt(ReaderUtils.getAttribute(gridElement, "dimension", true)));
Element lowElement = ReaderUtils.getChildElement(gridElement, "low");
String[] lows = lowElement.getFirstChild().getTextContent().trim().split(" ");
int[] low = new int[lows.length];
for (int i = 0; i < low.length; i++) {
low[i] = Integer.parseInt(lows[i]);
}
grid.put("low", low);
Element highElement = ReaderUtils.getChildElement(gridElement, "high");
String[] highs = highElement.getFirstChild().getTextContent().trim().split(" ");
int[] high = new int[highs.length];
for (int i = 0; i < high.length; i++) {
high[i] = Integer.parseInt(highs[i]);
}
grid.put("high", high);
Element[] axisNameElements = ReaderUtils.getChildElements(gridElement, "axisName");
String[] axisName = new String[axisNameElements.length];
for (int i = 0; i < axisName.length; i++) {
axisName[i] = axisNameElements[i].getFirstChild().getTextContent();
}
grid.put("axisName", axisName);
Element geoTransformElement = ReaderUtils.getChildElement(gridElement, "geoTransform");
if (geoTransformElement != null) {
Map<String, Double> geoTransform = new HashMap<String, Double>();
String scaleX = ReaderUtils.getChildText(geoTransformElement, "scaleX");
String scaleY = ReaderUtils.getChildText(geoTransformElement, "scaleY");
String shearX = ReaderUtils.getChildText(geoTransformElement, "shearX");
String shearY = ReaderUtils.getChildText(geoTransformElement, "shearY");
String translateX = ReaderUtils.getChildText(geoTransformElement, "translateX");
String translateY = ReaderUtils.getChildText(geoTransformElement, "translateY");
geoTransform.put("scaleX", scaleX != null ? new Double(scaleX) : null);
geoTransform.put("scaleY", scaleY != null ? new Double(scaleY) : null);
geoTransform.put("shearX", shearX != null ? new Double(shearX) : null);
geoTransform.put("shearY", shearY != null ? new Double(shearY) : null);
geoTransform.put("translateX", translateX != null ? new Double(translateX) : null);
geoTransform.put("translateY", translateY != null ? new Double(translateY) : null);
grid.put("geoTransform", geoTransform);
}
return grid;
}
public List<String> styles() throws Exception {
Element styleRoot = ReaderUtils.getChildElement(coverage, "styles");
if (styleRoot != null) {
List<String> styleNames = new ArrayList<String>();
Element[] styles = ReaderUtils.getChildElements(styleRoot, "style");
for (Element style : styles) {
styleNames.add(style.getTextContent().trim());
}
return styleNames;
} else {
return Collections.emptyList();
}
}
public Map<String, Serializable> parameters() {
Element parameters = ReaderUtils.getChildElement(coverage, "parameters");
if (parameters == null) {
return Collections.EMPTY_MAP;
}
HashMap<String, Serializable> map = new HashMap<String, Serializable>();
Element[] parameter = ReaderUtils.getChildElements(parameters, "parameter");
for (int i = 0; i < parameter.length; i++) {
String name = parameter[i].getAttribute("name");
String value = parameter[i].getAttribute("value");
map.put(name, value);
}
return map;
}
public List<Map> coverageDimensions() throws Exception {
Element[] cdElements = ReaderUtils.getChildElements(coverage, "CoverageDimension");
List<Map> cds = new ArrayList<Map>();
for (int i = 0; i < cdElements.length; i++) {
HashMap cd = new HashMap();
cd.put("name", ReaderUtils.getChildText(cdElements[i], "name"));
cd.put("description", ReaderUtils.getChildText(cdElements[i], "description"));
Element intervalElement = ReaderUtils.getChildElement(cdElements[i], "interval");
double min = Double.parseDouble(ReaderUtils.getChildText(intervalElement, "min"));
double max = Double.parseDouble(ReaderUtils.getChildText(intervalElement, "max"));
cd.put("min", min);
cd.put("max", max);
cds.add(cd);
}
return cds;
}
public Map<String, Object> envelope() throws Exception {
Element envelopeElement = ReaderUtils.getChildElement(coverage, "envelope");
HashMap<String, Object> e = new HashMap<String, Object>();
String nativeCrsWkt = ReaderUtils.getAttribute(envelopeElement, "crs", false);
nativeCrsWkt = nativeCrsWkt.replaceAll("'", "\"");
e.put("crs", nativeCrsWkt);
e.put("srsName", ReaderUtils.getAttribute(envelopeElement, "srsName", false));
Element[] posElements = ReaderUtils.getChildElements(envelopeElement, "pos");
String[] pos1 = posElements[0].getFirstChild().getTextContent().split(" ");
String[] pos2 = posElements[1].getFirstChild().getTextContent().split(" ");
e.put("x1", Double.parseDouble(pos1[0]));
e.put("y1", Double.parseDouble(pos1[1]));
e.put("x2", Double.parseDouble(pos2[0]));
e.put("y2", Double.parseDouble(pos2[1]));
return e;
}