/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.analytics.facet;
import java.io.ByteArrayInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Scanner;
import org.apache.lucene.util.IOUtils;
import org.apache.solr.SolrTestCaseJ4;
import org.apache.solr.analytics.util.MedianCalculator;
import org.apache.solr.analytics.util.PercentileCalculator;
import org.apache.solr.request.SolrQueryRequest;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import com.google.common.collect.ObjectArrays;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
public class AbstractAnalyticsFacetTest extends SolrTestCaseJ4 {
protected static final HashMap<String,Object> defaults = new HashMap<>();
protected String latestType = "";
private static Document doc;
private static XPathFactory xPathFact;
private static String rawResponse;
@BeforeClass
public static void beforeClassAbstractAnalysis() {
xPathFact = XPathFactory.newInstance();
}
@AfterClass
public static void afterClassAbstractAnalysis() {
xPathFact = null;
doc = null;
rawResponse = null;
defaults.clear();
}
protected static void setResponse(String response) throws ParserConfigurationException, IOException, SAXException {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true); // never forget this!
DocumentBuilder builder = factory.newDocumentBuilder();
doc = builder.parse(new InputSource(new ByteArrayInputStream(response.getBytes(StandardCharsets.UTF_8))));
rawResponse = response;
}
protected String getRawResponse() {
return rawResponse;
}
protected Node getNode(String xPath) throws XPathExpressionException {
return (Node)xPathFact.newXPath().compile(xPath).evaluate(doc, XPathConstants.NODE);
}
private NodeList getNodes(String n1, String n2, String n3, String element, String n4) throws XPathExpressionException {
// Construct the XPath expression. The form better not change or all these will fail.
StringBuilder sb = new StringBuilder("/response/lst[@name='stats']/lst[@name='").append(n1).append("']");
sb.append("/lst[@name='").append(n2).append("']");
sb.append("/lst[@name='").append(n3).append("']");
sb.append("//").append(element).append("[@name='").append(n4).append("']");
return (NodeList)xPathFact.newXPath().compile(sb.toString()).evaluate(doc, XPathConstants.NODESET);
}
protected ArrayList<String> getStringList(String n1, String n2, String n3, String element, String n4)
throws XPathExpressionException {
ArrayList<String> ret = new ArrayList<>();
NodeList nodes = getNodes(n1, n2, n3, element, n4);
for (int idx = 0; idx < nodes.getLength(); ++idx) {
ret.add(nodes.item(idx).getTextContent());
}
return ret;
}
protected ArrayList<Integer> getIntegerList(String n1, String n2, String n3, String element, String n4)
throws XPathExpressionException {
ArrayList<Integer> ret = new ArrayList<>();
NodeList nodes = getNodes(n1, n2, n3, element, n4);
for (int idx = 0; idx < nodes.getLength(); ++idx) {
ret.add(Integer.parseInt(nodes.item(idx).getTextContent()));
}
return ret;
}
protected ArrayList<Long> getLongList(String n1, String n2, String n3, String element, String n4)
throws XPathExpressionException {
ArrayList<Long> ret = new ArrayList<>();
NodeList nodes = getNodes(n1, n2, n3, element, n4);
for (int idx = 0; idx < nodes.getLength(); ++idx) {
ret.add(Long.parseLong(nodes.item(idx).getTextContent()));
}
return ret;
}
protected ArrayList<Float> getFloatList(String n1, String n2, String n3, String element, String n4)
throws XPathExpressionException {
ArrayList<Float> ret = new ArrayList<>();
NodeList nodes = getNodes(n1, n2, n3, element, n4);
for (int idx = 0; idx < nodes.getLength(); ++idx) {
ret.add(Float.parseFloat(nodes.item(idx).getTextContent()));
}
return ret;
}
protected ArrayList<Double> getDoubleList(String n1, String n2, String n3, String element, String n4)
throws XPathExpressionException {
ArrayList<Double> ret = new ArrayList<>();
NodeList nodes = getNodes(n1, n2, n3, element, n4);
for (int idx = 0; idx < nodes.getLength(); ++idx) {
ret.add(Double.parseDouble(nodes.item(idx).getTextContent()));
}
return ret;
}
public static void increment(List<Long> list, int idx){
Long i = list.remove(idx);
list.add(idx, i+1);
}
public static String[] filter(String...args){
List<String> l = new ArrayList<>();
for( int i=0; i <args.length; i+=2){
if( args[i+1].equals("0") || args[i+1].equals("0.0") ||
args[i+1].equals("1800-12-31T23:59:59Z") || args[i+1].equals("str0") ||
args[i+1].equals("this is the firststr0") ||
args[i+1].equals("this is the secondstr0") ){
continue;
}
l.add(args[i]);
l.add(args[i+1]);
}
return l.toArray(new String[0]);
}
protected void setLatestType(String latestType) {
this.latestType = latestType;
}
@SuppressWarnings({ "unchecked", "rawtypes" })
public <T extends Number & Comparable<T>> ArrayList calculateNumberStat(ArrayList<ArrayList<T>> lists, String stat) {
ArrayList result;
if (stat.equals("median")) {
result = new ArrayList<Double>();
for (List<T> list : lists) {
result.add(MedianCalculator.getMedian(list));
}
} else if (stat.equals("mean")) {
result = new ArrayList<Double>();
for (List<T> list : lists) {
double d = 0;
for (T element : list) {
d += element.doubleValue();
}
result.add(d/list.size());
}
} else if (stat.equals("sum")) {
result = new ArrayList<Double>();
for (Collection<T> list : lists) {
double d = 0;
for (T element : list) {
d += element.doubleValue();
}
result.add(d);
}
} else if (stat.equals("sumOfSquares")) {
result = new ArrayList<Double>();
for (List<T> list : lists) {
double d = 0;
for (T element : list) {
d += element.doubleValue()*element.doubleValue();
}
result.add(d);
}
} else if (stat.equals("stddev")) {
result = new ArrayList<Double>();
for (List<T> list : lists) {
double sum = 0;
double sumSquares = 0;
for (T element : list) {
sum += element.doubleValue();
sumSquares += element.doubleValue()*element.doubleValue();
}
String res = Double.toString(Math.sqrt(sumSquares/list.size()-sum*sum/(list.size()*list.size())));
result.add(Double.parseDouble(res));
}
} else {
throw new IllegalArgumentException();
}
return result;
}
@SuppressWarnings({ "unchecked", "rawtypes" })
public <T extends Comparable<T>> ArrayList calculateStat(ArrayList<ArrayList<T>> lists, String stat) {
ArrayList result;
if (stat.contains("perc_")) {
double[] perc = new double[]{Double.parseDouble(stat.substring(5))/100};
result = new ArrayList<T>();
for (List<T> list : lists) {
if( list.size() == 0) continue;
result.add(PercentileCalculator.getPercentiles(list, perc).get(0));
}
} else if (stat.equals("count")) {
result = new ArrayList<Long>();
for (List<T> list : lists) {
//if( list.size() == 0) continue;
result.add((long)list.size());
}
} else if (stat.equals("missing")) {
result = new ArrayList<Long>();
for (ArrayList<T> list : lists) {
if( list.size() == 0) continue;
result.add(calculateMissing(list,latestType));
}
} else if (stat.equals("unique")) {
result = new ArrayList<Long>();
for (List<T> list : lists) {
HashSet<T> set = new HashSet<>();
set.addAll(list);
result.add((long)set.size());
}
} else if (stat.equals("max")) {
result = new ArrayList<T>();
for (List<T> list : lists) {
if( list.size() == 0) continue;
Collections.sort(list);
result.add(list.get(list.size()-1));
}
} else if (stat.equals("min")) {
result = new ArrayList<T>();
for (List<T> list : lists) {
if( list.size() == 0) continue;
Collections.sort((List<T>)list);
result.add(list.get(0));
}
} else {
result = null;
}
return result;
}
@SuppressWarnings("unchecked")
public <T extends Comparable<T>> Long calculateMissing(ArrayList<T> list, String type) {
T def = (T)defaults.get(type);
long miss = 0;
for (T element : list) {
if (element.compareTo(def)==0) {
miss++;
}
}
return Long.valueOf(miss);
}
public static SolrQueryRequest request(String...args){
return SolrTestCaseJ4.req( ObjectArrays.concat(BASEPARMS, args,String.class) );
}
public static final String[] BASEPARMS = new String[]{ "q", "*:*", "indent", "true", "olap", "true", "rows", "0" };
public static String[] fileToStringArr(Class<?> clazz, String fileName) throws FileNotFoundException {
InputStream in = clazz.getResourceAsStream(fileName);
if (in == null) throw new FileNotFoundException("Resource not found: " + fileName);
Scanner file = new Scanner(in, "UTF-8");
try {
ArrayList<String> strList = new ArrayList<>();
while (file.hasNextLine()) {
String line = file.nextLine();
if (line.length()<2) {
continue;
}
String[] param = line.split("=");
strList.add(param[0]);
strList.add(param[1]);
}
return strList.toArray(new String[0]);
} finally {
IOUtils.closeWhileHandlingException(file, in);
}
}
}