--- /dev/null
+/**
+ * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.northbound.commons.query;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.regex.Pattern;
+
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.opendaylight.controller.northbound.commons.query.CompareExpression.OP;
+
+public class ExpresssionTest {
+
+ private static final List<PersonBean> people = new ArrayList<PersonBean>();
+ private static final ArrayList<BookBean> books = new ArrayList<BookBean>();
+
+ public static void p(String msg) {
+ //System.out.println("======= " + msg);
+ }
+
+ public static boolean matches(Expression exp, final PersonBean person) throws Exception {
+
+ boolean result = exp.accept(new Visitor() {
+ @Override
+ public boolean visit(LogicalExpression le) throws QueryException {
+ p("=== LE " + le.getOperator() + "|" + le.getFirst() + "|" + le.getSecond());
+ return (le.getOperator() == LogicalExpression.OP.AND) ?
+ le.getFirst().accept(this) && le.getSecond().accept(this) :
+ le.getFirst().accept(this) || le.getSecond().accept(this);
+ }
+
+ @Override
+ public boolean visit(CompareExpression ce) {
+ p("=== CE " + ce.getOperator() + "|" + ce.getSelector() + "|" + ce.getArgument());
+ if (person == null) {
+ return false;
+ }
+ try {
+ // check if the selector matches any of the fields
+ Field field = PersonBean.class.getDeclaredField(ce.getSelector());
+ if (field == null) {
+ p("No field found by name : " + ce.getSelector());
+ return false;
+ }
+ Object value = field.get(person);
+ if (value instanceof String) {
+ p("Comparing [" + ce.getArgument() + "] "+ ce.getOperator() + " [" + value.toString() + "]");
+ if (ce.getOperator() == OP.EQ) {
+ return ce.getArgument().equals(value.toString());
+ } else if (ce.getOperator() == OP.RE) {
+ return Pattern.matches(ce.getArgument(), value.toString());
+ } else if (ce.getOperator() == OP.NE) {
+ return !ce.getArgument().equals(value.toString());
+ } else {
+ p("Comparator : " + ce.getOperator() + " cannot apply to Strings");
+ return false;
+ }
+ } else {
+ // assume its a #
+ int valToMatch = Integer.parseInt(ce.getArgument());
+ int actualValue = (Integer)value;
+ p("Comparing: " + valToMatch + " " + ce.getOperator() + " " + actualValue);
+ switch(ce.getOperator()) {
+ case EQ :
+ case RE :
+ return actualValue == valToMatch;
+ case NE :
+ return actualValue != valToMatch;
+ case GT :
+ return actualValue > valToMatch;
+ case GE :
+ return actualValue >= valToMatch;
+ case LT :
+ return actualValue < valToMatch;
+ case LE :
+ return actualValue <= valToMatch;
+ default:
+ p("Unrecognized compare operator: " + ce.getOperator());
+ return false;
+ }
+ }
+ } catch (Exception e) {
+ throw new IllegalStateException(e);
+ }
+ }
+ });
+ p("RESULT: " + result);
+ return result;
+ }
+
+ @BeforeClass
+ public static void load() {
+ System.setProperty("org.slf4j.simpleLogger.defaultLogLevel", "debug");
+
+ people.add(new PersonBean(100, "John", "Doe", "San Jose"));
+ people.add(new PersonBean(200, "Foo", "Bar", "San Francisco"));
+ people.add(new PersonBean(300, "A", "B", "San Francisco"));
+ people.add(new PersonBean(400, "X", "Y", "New York"));
+
+ books.add(new BookBean("Book1", "A001", people.get(0)));
+ books.add(new BookBean("Book2", "A002", people.get(1)));
+ books.add(new BookBean("Book3", "A003", people.get(2)));
+
+ ReviewBean review1 = new ReviewBean("cool", people.get(2));
+ ReviewBean review2 = new ReviewBean("kewl", people.get(3));
+ ReviewBean review3 = new ReviewBean("+++", people.get(0));
+ ReviewBean review4 = new ReviewBean("---", people.get(1));
+
+ books.get(0).addReview(review1).addReview(review2).addReview(review3).addReview(review4);
+ books.get(1).addReview(review1).addReview(review2).addReview(review3).addReview(review4);
+ books.get(2).addReview(review1).addReview(review2).addReview(review3).addReview(review4);
+ }
+
+ @Test
+ public void testCXFQueries() throws Exception {
+ // following queries copied from apache cxf
+ Assert.assertFalse(matches(parseQuery("id=gt=100;name=Fred"), null));
+ Assert.assertFalse(matches(parseQuery("id=gt=100;name==Fred"), null));
+ Assert.assertFalse(matches(parseQuery("id=lt=123"), null));
+ Assert.assertFalse(matches(parseQuery("date=le=2010-03-11"), null));
+ Assert.assertFalse(matches(parseQuery("time=le=2010-03-11T18:00:00"), null));
+ Assert.assertFalse(matches(parseQuery("name==CXF;version=ge=2.2"), null));
+ Assert.assertFalse(matches(parseQuery("(age=lt=25,age=gt=35);city==London"), null));
+ Assert.assertFalse(matches(parseQuery("date=lt=2000-01-01;date=gt=1999-01-01;(sub==math,sub==physics)"), null));
+ }
+
+ public Expression parseQuery(String query) throws Exception {
+ p("PARSING query: " + query);
+ // FiqlParser is a parser generated by javacc
+ Expression exp = FiqlParser.parse(query);
+ p(exp.toString());
+ return exp;
+ }
+
+ public int find(String query) throws Exception {
+ int found = 0;
+ Expression exp = parseQuery(query);
+ TypeInfo.createRoot("person", PersonBean.class);
+ for (PersonBean person : people) {
+ if (matches(exp, person)) found++;
+ }
+ return found;
+ }
+
+ @Test
+ public void testPeopleQueries() throws Exception {
+ Assert.assertTrue(find("id==200") == 1);
+ Assert.assertTrue(find("id!=100;(city='San.*')") == 2);
+ Assert.assertTrue(find("id>200;(city='San.*')") == 1);
+ Assert.assertTrue(find("city='San.*'") == 3);
+ }
+
+ @Test
+ public void testTypeTree() throws Exception {
+ TypeInfo bookType = TypeInfo.createRoot("book", BookBean.class);
+ Assert.assertEquals("John", bookType.retrieve(books.get(0),
+ "book.author.firstName".split("\\."), 1));
+ Object result = bookType.retrieve(books.get(0),
+ "book.reviews.review.comment".split("\\."), 1);
+ Assert.assertTrue( result instanceof List);
+ List<Object> commentList = (List<Object>) result;
+ Assert.assertTrue(commentList.contains("cool"));
+ }
+
+ @Test
+ public void testQueryAPI() throws Exception {
+ QueryContext qc = new QueryContextImpl();
+
+ // find all books written by author with firstName "John"
+ Query q1 = qc.createQuery("book.author.firstName==John", BookBean.class);
+ Collection<BookBean> r1 = q1.find(books);
+ p("Filtered books: " + r1.size());
+ Assert.assertEquals(1, r1.size());
+
+ // find all books reviewed by people in a city "San*"
+ Query q2 = qc.createQuery("book.reviews.review.reviewer.city=San.*", BookBean.class);
+ Collection<BookBean> r2 = q2.find(books);
+
+ p("Filtered books: " + r2.size());
+ Assert.assertEquals(3, r2.size());
+
+ // find all books reviewed by people in a city "San*"
+ Query q3 = qc.createQuery("book==foo", BookBean.class);
+ Collection<BookBean> r3 = q3.find(books);
+ Assert.assertEquals(0, r3.size());
+ }
+
+ @Test
+ public void testFilter() throws Exception {
+ Library library = new Library((List)books.clone());
+ QueryContext qc = new QueryContextImpl();
+ // find all books written by author with firstName "John"
+ Query q1 = qc.createQuery("book.author.firstName==John", Library.class);
+ int sizeBefore = library.getList().size();
+ System.out.println(q1.filter(library, BookBean.class));
+ Assert.assertEquals(1, library.getList().size());
+ }
+}
Code Review / controller.git / blobdiff