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Merge pull request #352 from nguyennamthai/master 

Code sample for JsonPath article
This commit is contained in:
David Morley 2016-02-18 07:19:17 -06:00
parent ff56088c4a 596486aea0
commit a44e7bc606
10 changed files with 484 additions and 0 deletions
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json-path/.classpath Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" output="target/classes" path="src/main/java">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
<attributes>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="src" output="target/test-classes" path="src/test/java">
<attributes>
<attribute name="optional" value="true"/>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources">
<attributes>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>
<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
<attributes>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
<classpathentry kind="output" path="target/classes"/>
</classpath>

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json-path/.gitignore vendored Normal file
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*.class
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
# Packaged files #
*.jar
*.war
*.ear

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json-path/.project Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>json-path</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.m2e.core.maven2Builder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
<nature>org.eclipse.m2e.core.maven2Nature</nature>
</natures>
</projectDescription>

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json-path/pom.xml Normal file
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.baeldung</groupId>
<artifactId>json-path</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>json-path</name>
<dependencies>
<!-- json-path -->
<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
<version>${json-path.version}</version>
</dependency>
<!-- utilities -->
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>${joda-time.version}</version>
</dependency>
<!-- Testing -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<!-- Logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
<scope>runtime</scope>
</dependency>
</dependencies>
<properties>
<!-- json-path -->
<json-path.version>2.1.0</json-path.version>
<!-- utilities -->
<joda-time.version>2.9.2</joda-time.version>
<!-- Testing -->
<junit.version>4.12</junit.version>
<!-- Logging -->
<slf4j.version>1.7.14</slf4j.version>
<logback.version>1.1.3</logback.version>
</properties>
</project>

57
json-path/src/main/resources/intro_api.json Normal file
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{
"tool":
{
"jsonpath":
{
"creator":
{
"name": "Jayway Inc.",
"location":
[
"Malmo",
"Stockholm",
"Copenhagen",
"San Francisco",
"Karlskrona",
"Halmstad",
"Helsingborg"
]
},
"current release": "2.1"
}
},
"book":
[
{
"title": "Beginning JSON",
"author": "Ben Smith",
"price": 49.99
},
{
"title": "JSON at Work",
"author": "Tom Marrs",
"price": 29.99
},
{
"title": "Learn JSON in a DAY",
"author": "Acodemy",
"price": 8.99
},
{
"title": "JSON: Questions and Answers",
"author": "George Duckett",
"price": 6.00
}
],
"price range":
{
"cheap": 10.00,
"medium": 20.00
}
}

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json-path/src/main/resources/intro_user.json Normal file
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[
{
"username": "oracle",
"password":
{
"current":
{
"value": "Java_SE_8",
"created": 1397754000000
},
"old":
[
{
"value": "Java_SE_7",
"created": 1312650000000
}
]
}
},
{
"username": "sun",
"password":
{
"current":
{
"value": "Java_SE_6",
"created": 1168448400000
},
"old":
[
{
"value": "J2SE_5.0",
"created": 1099069200000
},
{
"value": "J2SE_1.4",
"created": 1025542800000
}
]
}
}
]

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json-path/src/test/java/org/baeldung/jsonpath/introduction/ChangingPasswordTest.java Normal file
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package org.baeldung.jsonpath.introduction;
import static org.junit.Assert.*;
import org.junit.Test;
import java.io.InputStream;
import java.util.Arrays;
import java.util.List;
import java.util.Scanner;
import org.joda.time.DateTime;
import org.joda.time.Years;
import com.jayway.jsonpath.Configuration;
import com.jayway.jsonpath.DocumentContext;
import com.jayway.jsonpath.JsonPath;
import com.jayway.jsonpath.Option;
public class ChangingPasswordTest {
enum Result {
SUCCESS, FAILURE
}
InputStream jsonValueInputStream = this.getClass().getClassLoader().getResourceAsStream("intro_user.json");
String jsonDataSourceString = new Scanner(jsonValueInputStream, "UTF-8").useDelimiter("\\Z").next();
@Test
public void givenUseCase_whenChangingPasswordOfNonExistentUser_thenFail() {
String failedRequestBody = "{\"username\":\"jayway\", \"new_password\":\"JsonPath\"}";
Result result = changingPasswordHelper(failedRequestBody);
assertEquals(Result.FAILURE, result);
}
@Test
public void givenUseCase_whenChangingToUnusedPassword_thenSucceed() {
String successfulRequestBody = "{\"username\":\"oracle\", \"new_password\":\"Java_SE_9\"}";
Result result = changingPasswordHelper(successfulRequestBody);
assertEquals(Result.SUCCESS, result);
}
@Test
public void givenUseCase_whenChangingToRecentlyUsedPassword_thenFail() {
String failedRequestBody = "{\"username\":\"oracle\", \"new_password\":\"Java_SE_7\"}";
Result result = changingPasswordHelper(failedRequestBody);
assertEquals(Result.FAILURE, result);
}
@Test
public void givenUseCase_whenChangingToLongTimeAgoPassword_thenSucceed() {
String successfulRequestBody = "{\"username\":\"sun\", \"new_password\":\"J2SE_5.0\"}";
Result result = changingPasswordHelper(successfulRequestBody);
assertEquals(Result.SUCCESS, result);
}
private Result changingPasswordHelper(String requestBody) {
DocumentContext requestContext = JsonPath.parse(requestBody);
String extractedUsername = requestContext.read("$['username']");
String extractedPassword = requestContext.read("$['new_password']");
DocumentContext jsonContext = JsonPath.parse(jsonDataSourceString);
List<String> dataSourceUsername = jsonContext.read("$[?(@.username == '" + extractedUsername + "')]");
if (dataSourceUsername.size() == 0)
return Result.FAILURE;
Configuration pathConfiguration = Configuration.builder().options(Option.AS_PATH_LIST).build();
List<String> pathToCurrentUser = JsonPath.using(pathConfiguration).parse(jsonDataSourceString).read("$[?(@.username == '" + extractedUsername + "')]");
List<Long> passwordCreatedTimeList = jsonContext.read(pathToCurrentUser.get(0) + "['password']['old'][?(@.value == '" + extractedPassword + "')]['created']");
if (passwordCreatedTimeList.size() == 0)
return Result.SUCCESS;
Long[] passwordCreatedTimeArray = (passwordCreatedTimeList.toArray(new Long[passwordCreatedTimeList.size()]));
Arrays.sort(passwordCreatedTimeArray);
DateTime oldDate = new DateTime(passwordCreatedTimeArray[passwordCreatedTimeArray.length - 1]);
if (Years.yearsBetween(oldDate, new DateTime()).getYears() <= 10)
return Result.FAILURE;
return Result.SUCCESS;
}
}

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json-path/src/test/java/org/baeldung/jsonpath/introduction/LoggingInTest.java Normal file
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package org.baeldung.jsonpath.introduction;
import static org.junit.Assert.*;
import org.junit.Test;
import java.io.InputStream;
import java.util.List;
import java.util.Scanner;
import com.jayway.jsonpath.DocumentContext;
import com.jayway.jsonpath.JsonPath;
public class LoggingInTest {
enum Result {
SUCCESS, FAILURE
}
InputStream jsonInputStream = this.getClass().getClassLoader().getResourceAsStream("intro_user.json");
String jsonDataSourceString = new Scanner(jsonInputStream, "UTF-8").useDelimiter("\\Z").next();
@Test
public void givenUseCase_whenLoggingInWithCorrectUserData_thenSucceed() {
String correctRequestBody = "{\"username\":\"sun\", \"password\":\"Java_SE_6\"}";
Result result = loggingInHelper(correctRequestBody);
assertEquals(Result.SUCCESS, result);
}
@Test
public void givenUseCase_whenLoggingInWithIncorrectUserData_thenFail() {
String incorrectRequestBody = "{\"username\":\"oracle\", \"password\":\"Java_SE_9\"}";
Result result = loggingInHelper(incorrectRequestBody);
assertEquals(Result.FAILURE, result);
}
private Result loggingInHelper(String requestBody) {
DocumentContext requestContext = JsonPath.parse(requestBody);
String extractedUsername = requestContext.read("$['username']");
String extractedPassword = requestContext.read("$['password']");
List<String> list = JsonPath.parse(jsonDataSourceString).read("$[?(@.username == '" + extractedUsername + "' && @.password.current.value == '" + extractedPassword + "')]");
if (list.size() == 0)
return Result.FAILURE;
return Result.SUCCESS;
}
}

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json-path/src/test/java/org/baeldung/jsonpath/introduction/OperationTest.java Normal file
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package org.baeldung.jsonpath.introduction;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import static org.hamcrest.CoreMatchers.containsString;
import static org.hamcrest.CoreMatchers.not;
import org.junit.Test;
import java.io.InputStream;
import java.util.List;
import java.util.Map;
import java.util.Scanner;
import com.jayway.jsonpath.Criteria;
import com.jayway.jsonpath.DocumentContext;
import com.jayway.jsonpath.Filter;
import com.jayway.jsonpath.JsonPath;
import com.jayway.jsonpath.Predicate;
public class OperationTest {
InputStream jsonInputStream = this.getClass().getClassLoader().getResourceAsStream("intro_api.json");
String jsonDataSourceString = new Scanner(jsonInputStream, "UTF-8").useDelimiter("\\Z").next();
@Test
public void givenJsonPathWithoutPredicates_whenReading_thenCorrect() {
String jsonpathCreatorNamePath = "$['tool']['jsonpath']['creator']['name']";
String jsonpathCreatorLocationPath = "$['tool']['jsonpath']['creator']['location'][*]";
DocumentContext jsonContext = JsonPath.parse(jsonDataSourceString);
String jsonpathCreatorName = jsonContext.read(jsonpathCreatorNamePath);
List<String> jsonpathCreatorLocation = jsonContext.read(jsonpathCreatorLocationPath);
assertEquals("Jayway Inc.", jsonpathCreatorName);
assertThat(jsonpathCreatorLocation.toString(), containsString("Malmo"));
assertThat(jsonpathCreatorLocation.toString(), containsString("San Francisco"));
assertThat(jsonpathCreatorLocation.toString(), containsString("Helsingborg"));
}
@Test
public void givenJsonPathWithFilterPredicate_whenReading_thenCorrect() {
Filter expensiveFilter = Filter.filter(Criteria.where("price").gt(20.00));
List<Map<String, Object>> expensive = JsonPath.parse(jsonDataSourceString).read("$['book'][?]", expensiveFilter);
predicateUsageAssertionHelper(expensive);
}
@Test
public void givenJsonPathWithCustomizedPredicate_whenReading_thenCorrect() {
Predicate expensivePredicate = new Predicate() {
public boolean apply(PredicateContext context) {
String value = context.item(Map.class).get("price").toString();
return Float.valueOf(value) > 20.00;
}
};
List<Map<String, Object>> expensive = JsonPath.parse(jsonDataSourceString).read("$['book'][?]", expensivePredicate);
predicateUsageAssertionHelper(expensive);
}
@Test
public void givenJsonPathWithInlinePredicate_whenReading_thenCorrect() {
List<Map<String, Object>> expensive = JsonPath.parse(jsonDataSourceString).read("$['book'][?(@['price'] > $['price range']['medium'])]");
predicateUsageAssertionHelper(expensive);
}
private void predicateUsageAssertionHelper(List<?> predicate) {
assertThat(predicate.toString(), containsString("Beginning JSON"));
assertThat(predicate.toString(), containsString("JSON at Work"));
assertThat(predicate.toString(), not(containsString("Learn JSON in a DAY")));
assertThat(predicate.toString(), not(containsString("JSON: Questions and Answers")));
}
}

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json-path/src/test/java/org/baeldung/jsonpath/introduction/RegisteringAccountTest.java Normal file
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package org.baeldung.jsonpath.introduction;
import static org.junit.Assert.*;
import org.junit.Test;
import java.io.InputStream;
import java.util.List;
import java.util.Scanner;
import com.jayway.jsonpath.JsonPath;
public class RegisteringAccountTest {
enum Result {
SUCCESS, FAILURE
}
InputStream jsonInputStream = this.getClass().getClassLoader().getResourceAsStream("intro_user.json");
String jsonDataSourceString = new Scanner(jsonInputStream, "UTF-8").useDelimiter("\\Z").next();
@Test
public void givenUseCase_whenRegisteringUnusedAccount_thenSucceed() {
String unusedRequestBody = "{\"username\":\"jayway\", \"password\":\"JsonPath\"}";
Result result = registeringNewAccountHelper(unusedRequestBody);
assertEquals(Result.SUCCESS, result);
}
@Test
public void givenUseCase_whenRegisteringUsedAccount_thenFail() {
String usedRequestBody = "{\"username\":\"oracle\", \"password\":\"Java_SE_9\"}";
Result result = registeringNewAccountHelper(usedRequestBody);
assertEquals(Result.FAILURE, result);
}
private Result registeringNewAccountHelper(String requestBody) {
List<String> userDataSource = JsonPath.parse(jsonDataSourceString).read("$[*]['username']");
String extractedUsername = JsonPath.parse(requestBody).read("$['username']");
if (userDataSource.toString().contains(extractedUsername))
return Result.FAILURE;
return Result.SUCCESS;
}
}