package org.rrd4j.core;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.rrd4j.ConsolFun;
import java.io.File;
import java.io.IOException;
class XmlReader extends DataImporter {
private Element root;
private Node[] dsNodes, arcNodes;
XmlReader(String xmlFilePath) throws IOException {
root = Util.Xml.getRootElement(new File(xmlFilePath));
dsNodes = Util.Xml.getChildNodes(root, "ds");
arcNodes = Util.Xml.getChildNodes(root, "rra");
}
String getVersion() {
return Util.Xml.getChildValue(root, "version");
}
long getLastUpdateTime() {
return Util.Xml.getChildValueAsLong(root, "lastupdate");
}
long getStep() {
return Util.Xml.getChildValueAsLong(root, "step");
}
int getDsCount() {
return dsNodes.length;
}
int getArcCount() {
return arcNodes.length;
}
String getDsName(int dsIndex) {
return Util.Xml.getChildValue(dsNodes[dsIndex], "name");
}
String getDsType(int dsIndex) {
return Util.Xml.getChildValue(dsNodes[dsIndex], "type");
}
long getHeartbeat(int dsIndex) {
return Util.Xml.getChildValueAsLong(dsNodes[dsIndex], "minimal_heartbeat");
}
double getMinValue(int dsIndex) {
return Util.Xml.getChildValueAsDouble(dsNodes[dsIndex], "min");
}
double getMaxValue(int dsIndex) {
return Util.Xml.getChildValueAsDouble(dsNodes[dsIndex], "max");
}
double getLastValue(int dsIndex) {
return Util.Xml.getChildValueAsDouble(dsNodes[dsIndex], "last_ds");
}
double getAccumValue(int dsIndex) {
return Util.Xml.getChildValueAsDouble(dsNodes[dsIndex], "value");
}
long getNanSeconds(int dsIndex) {
return Util.Xml.getChildValueAsLong(dsNodes[dsIndex], "unknown_sec");
}
ConsolFun getConsolFun(int arcIndex) {
return ConsolFun.valueOf(Util.Xml.getChildValue(arcNodes[arcIndex], "cf"));
}
double getXff(int arcIndex) {
Node arc = arcNodes[arcIndex];
Node params[] = Util.Xml.getChildNodes(arc, "params");
//RRD4J xml, xff is in the archive definition
if(params.length == 0) {
return Util.Xml.getChildValueAsDouble(arc, "xff");
}
//RRDTool xml, xff is in the archive definition
else {
return Util.Xml.getChildValueAsDouble(params[0], "xff");
}
}
int getSteps(int arcIndex) {
return Util.Xml.getChildValueAsInt(arcNodes[arcIndex], "pdp_per_row");
}
double getStateAccumValue(int arcIndex, int dsIndex) {
Node cdpNode = Util.Xml.getFirstChildNode(arcNodes[arcIndex], "cdp_prep");
Node[] dsNodes = Util.Xml.getChildNodes(cdpNode, "ds");
return Util.Xml.getChildValueAsDouble(dsNodes[dsIndex], "value");
}
int getStateNanSteps(int arcIndex, int dsIndex) {
Node cdpNode = Util.Xml.getFirstChildNode(arcNodes[arcIndex], "cdp_prep");
Node[] dsNodes = Util.Xml.getChildNodes(cdpNode, "ds");
return Util.Xml.getChildValueAsInt(dsNodes[dsIndex], "unknown_datapoints");
}
int getRows(int arcIndex) {
Node dbNode = Util.Xml.getFirstChildNode(arcNodes[arcIndex], "database");
Node[] rows = Util.Xml.getChildNodes(dbNode, "row");
return rows.length;
}
double[] getValues(int arcIndex, int dsIndex) {
Node dbNode = Util.Xml.getFirstChildNode(arcNodes[arcIndex], "database");
Node[] rows = Util.Xml.getChildNodes(dbNode, "row");
double[] values = new double[rows.length];
for (int i = 0; i < rows.length; i++) {
Node[] vNodes = Util.Xml.getChildNodes(rows[i], "v");
Node vNode = vNodes[dsIndex];
values[i] = Util.parseDouble(vNode.getFirstChild().getNodeValue().trim());
}
return values;
}
}