jsonpath with new use cases
This commit is contained in:
Thai Nguyen
parent
7011fa40fe
commit
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.baeldung</groupId>
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<artifactId>json-path</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<name>json-path</name>
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<dependencies>
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<!-- json-path -->
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<dependency>
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<groupId>com.jayway.jsonpath</groupId>
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<artifactId>json-path</artifactId>
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<version>${json-path.version}</version>
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</dependency>
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<!-- Testing -->
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>${junit.version}</version>
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<scope>test</scope>
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</dependency>
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<!-- Logging -->
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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<version>${slf4j.version}</version>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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<version>${logback.version}</version>
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<scope>runtime</scope>
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</dependency>
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</dependencies>
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<properties>
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<!-- json-path -->
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<json-path.version>2.1.0</json-path.version>
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<!-- Testing -->
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<junit.version>4.12</junit.version>
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<!-- Logging -->
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<slf4j.version>1.7.14</slf4j.version>
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<logback.version>1.1.3</logback.version>
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</properties>
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</project>
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{
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"tool":
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{
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"jsonpath":
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{
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"creator":
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{
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"name": "Jayway Inc.",
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"location":
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[
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"Malmo",
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"Stockholm",
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"Copenhagen",
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"San Francisco",
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"Karlskrona",
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"Halmstad",
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"Helsingborg"
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]
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},
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"current release": "2.1"
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}
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},
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"book":
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[
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{
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"title": "Beginning JSON",
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"author": "Ben Smith",
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"price": 49.99
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},
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{
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"title": "JSON at Work",
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"author": "Tom Marrs",
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"price": 29.99
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},
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{
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"title": "Learn JSON in a DAY",
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"author": "Acodemy",
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"price": 8.99
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},
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{
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"title": "JSON: Questions and Answers",
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"author": "George Duckett",
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"price": 6.00
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}
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],
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"price range":
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{
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"cheap": 10.00,
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"medium": 20.00
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}
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}
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[
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{
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"id": 1,
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"title": "Casino Royale",
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"director": "Martin Campbell",
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"starring":
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[
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"Daniel Craig",
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"Eva Green"
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],
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"desc": "Twenty-first James Bond movie",
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"release date": 1163466000000,
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"box office": 594275385
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},
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{
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"id": 2,
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"title": "Quantum of Solace",
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"director": "Marc Forster",
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"starring":
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[
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"Daniel Craig",
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"Olga Kurylenko"
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],
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"desc": "Twenty-second James Bond movie",
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"release date": 1225242000000,
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"box office": 591692078
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},
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{
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"id": 3,
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"title": "Skyfall",
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"director": "Sam Mendes",
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"starring":
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[
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"Daniel Craig",
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"Naomie Harris"
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],
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"desc": "Twenty-third James Bond movie",
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"release date": 1350954000000,
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"box office": 1110526981
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},
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{
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"id": 4,
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"title": "Spectre",
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"director": "Sam Mendes",
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"starring":
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[
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"Daniel Craig",
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"Lea Seydoux"
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],
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"desc": "Twenty-fourth James Bond movie",
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"release date": 1445821200000,
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"box office": 879376275
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}
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]
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package org.baeldung.jsonpath.introduction;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertThat;
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import static org.hamcrest.CoreMatchers.containsString;
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import static org.hamcrest.CoreMatchers.not;
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import org.junit.Test;
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import java.io.InputStream;
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import java.util.List;
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import java.util.Map;
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import java.util.Scanner;
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import com.jayway.jsonpath.Criteria;
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import com.jayway.jsonpath.DocumentContext;
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import com.jayway.jsonpath.Filter;
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import com.jayway.jsonpath.JsonPath;
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import com.jayway.jsonpath.Predicate;
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public class OperationTest {
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InputStream jsonInputStream = this.getClass().getClassLoader().getResourceAsStream("intro_api.json");
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String jsonDataSourceString = new Scanner(jsonInputStream, "UTF-8").useDelimiter("\\Z").next();
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@Test
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public void givenJsonPathWithoutPredicates_whenReading_thenCorrect() {
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String jsonpathCreatorNamePath = "$['tool']['jsonpath']['creator']['name']";
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String jsonpathCreatorLocationPath = "$['tool']['jsonpath']['creator']['location'][*]";
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DocumentContext jsonContext = JsonPath.parse(jsonDataSourceString);
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String jsonpathCreatorName = jsonContext.read(jsonpathCreatorNamePath);
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List<String> jsonpathCreatorLocation = jsonContext.read(jsonpathCreatorLocationPath);
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assertEquals("Jayway Inc.", jsonpathCreatorName);
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assertThat(jsonpathCreatorLocation.toString(), containsString("Malmo"));
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assertThat(jsonpathCreatorLocation.toString(), containsString("San Francisco"));
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assertThat(jsonpathCreatorLocation.toString(), containsString("Helsingborg"));
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}
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@Test
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public void givenJsonPathWithFilterPredicate_whenReading_thenCorrect() {
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Filter expensiveFilter = Filter.filter(Criteria.where("price").gt(20.00));
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List<Map<String, Object>> expensive = JsonPath.parse(jsonDataSourceString).read("$['book'][?]", expensiveFilter);
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predicateUsageAssertionHelper(expensive);
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}
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@Test
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public void givenJsonPathWithCustomizedPredicate_whenReading_thenCorrect() {
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Predicate expensivePredicate = new Predicate() {
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public boolean apply(PredicateContext context) {
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String value = context.item(Map.class).get("price").toString();
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return Float.valueOf(value) > 20.00;
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}
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};
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List<Map<String, Object>> expensive = JsonPath.parse(jsonDataSourceString).read("$['book'][?]", expensivePredicate);
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predicateUsageAssertionHelper(expensive);
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}
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@Test
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public void givenJsonPathWithInlinePredicate_whenReading_thenCorrect() {
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List<Map<String, Object>> expensive = JsonPath.parse(jsonDataSourceString).read("$['book'][?(@['price'] > $['price range']['medium'])]");
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predicateUsageAssertionHelper(expensive);
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}
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private void predicateUsageAssertionHelper(List<?> predicate) {
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assertThat(predicate.toString(), containsString("Beginning JSON"));
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assertThat(predicate.toString(), containsString("JSON at Work"));
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assertThat(predicate.toString(), not(containsString("Learn JSON in a DAY")));
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assertThat(predicate.toString(), not(containsString("JSON: Questions and Answers")));
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}
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}
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package org.baeldung.jsonpath.introduction;
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import static org.junit.Assert.assertThat;
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import static org.junit.Assert.assertEquals;
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import static org.hamcrest.CoreMatchers.containsString;
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import org.junit.Test;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Map;
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import java.util.Scanner;
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import com.jayway.jsonpath.Configuration;
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import com.jayway.jsonpath.DocumentContext;
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import com.jayway.jsonpath.JsonPath;
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import com.jayway.jsonpath.Option;
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public class ServiceTest {
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InputStream jsonInputStream = this.getClass().getClassLoader().getResourceAsStream("intro_service.json");
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String jsonString = new Scanner(jsonInputStream, "UTF-8").useDelimiter("\\Z").next();
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@Test
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public void givenId_whenRequestingRecordData_thenSucceed() {
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Object dataObject = JsonPath.parse(jsonString).read("$[?(@.id == 2)]");
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String dataString = dataObject.toString();
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assertThat(dataString, containsString("2"));
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assertThat(dataString, containsString("Quantum of Solace"));
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assertThat(dataString, containsString("Twenty-second James Bond movie"));
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}
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@Test
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public void givenStarring_whenRequestingMovieTitle_thenSucceed() {
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List<Map<String, Object>> dataList = JsonPath.parse(jsonString).read("$[?('Eva Green' in @['starring'])]");
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String title = (String) dataList.get(0).get("title");
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assertEquals("Casino Royale", title);
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}
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@Test
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public void givenCompleteStructure_whenCalculatingTotalRevenue_thenSucceed() {
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DocumentContext context = JsonPath.parse(jsonString);
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int length = context.read("$.length()");
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long revenue = 0;
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for (int i = 0; i < length; i++) {
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revenue += context.read("$[" + i + "]['box office']", Long.class);
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}
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assertEquals(594275385L + 591692078L + 1110526981L + 879376275L, revenue);
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}
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@Test
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public void givenStructure_whenRequestingHighestRevenueMovieTitle_thenSucceed() {
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DocumentContext context = JsonPath.parse(jsonString);
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List<Object> revenueList = context.read("$[*]['box office']");
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Integer[] revenueArray = revenueList.toArray(new Integer[0]);
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Arrays.sort(revenueArray);
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int highestRevenue = revenueArray[revenueArray.length - 1];
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Configuration pathConfiguration = Configuration.builder().options(Option.AS_PATH_LIST).build();
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List<String> pathList = JsonPath.using(pathConfiguration).parse(jsonString).read("$[?(@['box office'] == " + highestRevenue + ")]");
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Map<String, String> dataRecord = context.read(pathList.get(0));
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String title = dataRecord.get("title");
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assertEquals("Skyfall", title);
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}
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@Test
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public void givenDirector_whenRequestingLatestMovieTitle_thenSucceed() {
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DocumentContext context = JsonPath.parse(jsonString);
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List<Map<String, Object>> dataList = context.read("$[?(@.director == 'Sam Mendes')]");
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List<Object> dateList = new ArrayList<>();
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for (Map<String, Object> item : dataList) {
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Object date = item.get("release date");
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dateList.add(date);
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}
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Long[] dateArray = dateList.toArray(new Long[0]);
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Arrays.sort(dateArray);
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long latestTime = dateArray[dateArray.length - 1];
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List<Map<String, Object>> finalDataList = context.read("$[?(@['director'] == 'Sam Mendes' && @['release date'] == " + latestTime + ")]");
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String title = (String) finalDataList.get(0).get("title");
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assertEquals("Spectre", title);
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}
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}
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