From 46e446683a4fc56ac5e8fe5b832a848a8fe35005 Mon Sep 17 00:00:00 2001
From: Bruno Matos Torrao <brunomattostorrao@gmail.com>
Date: Sun, 25 Feb 2018 14:58:33 -0300
Subject: [PATCH 1/4] add: parsing json

---
 core-groovy/build.gradle                      | 13 +++
 .../groovy/com/baeldung/json/Account.groovy   |  7 ++
 .../com/baeldung/json/JsonParser.groovy       | 36 +++++++++
 .../com/baeldung/json/JsonParserTest.groovy   | 80 +++++++++++++++++++
 4 files changed, 136 insertions(+)
 create mode 100644 core-groovy/build.gradle
 create mode 100644 core-groovy/src/main/groovy/com/baeldung/json/Account.groovy
 create mode 100644 core-groovy/src/main/groovy/com/baeldung/json/JsonParser.groovy
 create mode 100644 core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy

diff --git a/core-groovy/build.gradle b/core-groovy/build.gradle
new file mode 100644
index 0000000000..b3f33836da
--- /dev/null
+++ b/core-groovy/build.gradle
@@ -0,0 +1,13 @@
+group 'com.baeldung'
+version '1.0-SNAPSHOT'
+
+apply plugin: 'groovy'
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    compile 'org.codehaus.groovy:groovy-all:2.5.0-alpha-1'
+    testCompile 'org.spockframework:spock-core:1.1-groovy-2.4'
+}
diff --git a/core-groovy/src/main/groovy/com/baeldung/json/Account.groovy b/core-groovy/src/main/groovy/com/baeldung/json/Account.groovy
new file mode 100644
index 0000000000..84b294f0bd
--- /dev/null
+++ b/core-groovy/src/main/groovy/com/baeldung/json/Account.groovy
@@ -0,0 +1,7 @@
+package com.baeldung.json
+
+class Account {
+    String id
+    BigDecimal value
+    Date createdAt
+}
\ No newline at end of file
diff --git a/core-groovy/src/main/groovy/com/baeldung/json/JsonParser.groovy b/core-groovy/src/main/groovy/com/baeldung/json/JsonParser.groovy
new file mode 100644
index 0000000000..0d7c451972
--- /dev/null
+++ b/core-groovy/src/main/groovy/com/baeldung/json/JsonParser.groovy
@@ -0,0 +1,36 @@
+package com.baeldung.json
+
+import groovy.json.JsonGenerator
+import groovy.json.JsonOutput
+import groovy.json.JsonParserType
+import groovy.json.JsonSlurper
+
+class JsonParser {
+
+    Account toObject(String json) {
+        JsonSlurper jsonSlurper = new JsonSlurper()
+        jsonSlurper.parseText(json) as Account
+    }
+
+    Account toObjectWithIndexOverlay(String json) {
+        JsonSlurper jsonSlurper = new JsonSlurper(type: JsonParserType.INDEX_OVERLAY)
+        jsonSlurper.parseText(json) as Account
+    }
+
+    String toJson(Account account) {
+        JsonOutput.toJson(account)
+    }
+
+    String toJson(Account account, String dateFormat, String... fieldsToExclude) {
+        JsonGenerator generator = new JsonGenerator.Options()
+                .dateFormat(dateFormat)
+                .excludeFieldsByName(fieldsToExclude)
+                .build()
+        generator.toJson(account)
+    }
+
+    String prettyfy(String json) {
+        JsonOutput.prettyPrint(json)
+    }
+
+}
diff --git a/core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy b/core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy
new file mode 100644
index 0000000000..2bf2b0be7c
--- /dev/null
+++ b/core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy
@@ -0,0 +1,80 @@
+package com.baeldung.json
+
+import spock.lang.Specification
+
+import java.text.SimpleDateFormat
+
+class JsonParserTest extends Specification {
+
+    JsonParser jsonParser
+
+    void setup () {
+        jsonParser = new JsonParser()
+    }
+
+    def 'Should parse to Account given Json String' () {
+        given:
+            def json = '{"id":"1234","value":15.6}'
+        when:
+            def account = jsonParser.toObject(json)
+        then:
+            account
+            account instanceof Account
+            account.id == '1234'
+            account.value == 15.6
+    }
+
+    def 'Should parse to Account given Json String with date property' () {
+        given:
+            def json = '{"id":"1234","value":15.6,"createdAt":"2018-01-01T02:00:00+0000"}'
+        when:
+            def account = jsonParser.toObjectWithIndexOverlay(json)
+        then:
+            account
+            account instanceof Account
+            account.id == '1234'
+            account.value == 15.6
+            println account.createdAt
+            account.createdAt == Date.parse('yyyy-MM-dd', '2018-01-01')
+    }
+
+    def 'Should parse to Json given an Account object' () {
+        given:
+            Account account = new Account(
+                    id: '123',
+                    value: 15.6,
+                    createdAt: new SimpleDateFormat('MM/dd/yyyy').parse('01/01/2018')
+            )
+        when:
+            def json = jsonParser.toJson(account)
+        then:
+            json
+            json == '{"value":15.6,"createdAt":"2018-01-01T02:00:00+0000","id":"123"}'
+    }
+
+    def 'Should parse to Json given an Account object, a date format and fields to exclude' () {
+        given:
+            Account account = new Account(
+                    id: '123',
+                    value: 15.6,
+                    createdAt: new SimpleDateFormat('MM/dd/yyyy').parse('01/01/2018')
+            )
+        when:
+            def json = jsonParser.toJson(account, 'MM/dd/yyyy', 'value')
+        then:
+            json
+            json == '{"createdAt":"01/01/2018","id":"123"}'
+    }
+
+    def 'Should prettify given a json string' () {
+        given:
+            String json = '{"value":15.6,"createdAt":"01/01/2018","id":"123456"}'
+        when:
+            def jsonPretty = jsonParser.prettyfy(json)
+        then:
+            jsonPretty
+            jsonPretty == '{\n    "value": 15.6,\n    "createdAt": "01/01/2018",\n    "id": "123456"\n}'
+    }
+
+
+}

From 5a0932dff54b4dab3fa77b6743eafebc0cab0683 Mon Sep 17 00:00:00 2001
From: Bruno Matos Torrao <brunomattostorrao@gmail.com>
Date: Sun, 25 Feb 2018 15:47:51 -0300
Subject: [PATCH 2/4] fix: maven build and tests

---
 core-groovy/pom.xml | 130 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 core-groovy/pom.xml

diff --git a/core-groovy/pom.xml b/core-groovy/pom.xml
new file mode 100644
index 0000000000..7ab91c7af2
--- /dev/null
+++ b/core-groovy/pom.xml
@@ -0,0 +1,130 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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>
+
+    <artifactId>core-groovy</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <repositories>
+        <repository>
+            <id>central</id>
+            <url>http://jcenter.bintray.com</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy</artifactId>
+            <version>2.5.0-alpha-1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy-all</artifactId>
+            <version>2.5.0-alpha-1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy-sql</artifactId>
+            <version>2.5.0-alpha-1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>${junit.jupiter.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.platform</groupId>
+            <artifactId>junit-platform-runner</artifactId>
+            <version>${junit.platform.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.hsqldb</groupId>
+            <artifactId>hsqldb</artifactId>
+            <version>2.4.0</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.spockframework</groupId>
+            <artifactId>spock-core</artifactId>
+            <version>1.1-groovy-2.4</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.codehaus.gmavenplus</groupId>
+                <artifactId>gmavenplus-plugin</artifactId>
+                <version>1.6</version>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>addSources</goal>
+                            <goal>addTestSources</goal>
+                            <goal>compile</goal>
+                            <goal>compileTests</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>${maven-surefire-plugin.version}</version>
+            </plugin>
+            <plugin>
+                <artifactId>maven-failsafe-plugin</artifactId>
+                <version>2.19.1</version>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.junit.platform</groupId>
+                        <artifactId>junit-platform-surefire-provider</artifactId>
+                        <version>${junit.platform.version}</version>
+                    </dependency>
+                </dependencies>
+                <executions>
+                    <execution>
+                        <id>junit5</id>
+                        <goals>
+                            <goal>integration-test</goal>
+                            <goal>verify</goal>
+                        </goals>
+                        <configuration>
+                            <includes>
+                                <include>**/*Test5.java</include>
+                            </includes>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <kotlin-maven-plugin.version>1.1.2</kotlin-maven-plugin.version>
+        <kotlin-test-junit.version>1.1.2</kotlin-test-junit.version>
+        <kotlin-stdlib.version>1.1.2</kotlin-stdlib.version>
+        <kotlin-reflect.version>1.1.2</kotlin-reflect.version>
+        <kotlinx.version>0.15</kotlinx.version>
+        <mockito-kotlin.version>1.5.0</mockito-kotlin.version>
+
+        <junit.jupiter.version>5.0.0</junit.jupiter.version>
+        <junit.platform.version>1.0.0</junit.platform.version>
+        <junit.vintage.version>4.12.0</junit.vintage.version>
+        <junit4.version>4.12</junit4.version>
+    </properties>
+
+</project>
\ No newline at end of file

From 821360efbadb3c751a918a0f6990cfcee17af2fb Mon Sep 17 00:00:00 2001
From: Bruno Matos Torrao <brunomattostorrao@gmail.com>
Date: Sun, 25 Feb 2018 16:31:53 -0300
Subject: [PATCH 3/4] fix: assert date

---
 .../src/test/groovy/com/baeldung/json/JsonParserTest.groovy     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy b/core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy
index 2bf2b0be7c..c383a1b6da 100644
--- a/core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy
+++ b/core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy
@@ -26,7 +26,7 @@ class JsonParserTest extends Specification {
 
     def 'Should parse to Account given Json String with date property' () {
         given:
-            def json = '{"id":"1234","value":15.6,"createdAt":"2018-01-01T02:00:00+0000"}'
+            def json = '{"id":"1234","value":15.6,"createdAt":"2018-01-01T00:00:00+0000"}'
         when:
             def account = jsonParser.toObjectWithIndexOverlay(json)
         then:

From a25497f258f65162f6efbdff8bae7e3f427a4bef Mon Sep 17 00:00:00 2001
From: Bruno Matos Torrao <brunomattostorrao@gmail.com>
Date: Sun, 25 Feb 2018 16:34:58 -0300
Subject: [PATCH 4/4] fix: assert date

---
 .../src/test/groovy/com/baeldung/json/JsonParserTest.groovy     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy b/core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy
index c383a1b6da..fcd51d58bc 100644
--- a/core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy
+++ b/core-groovy/src/test/groovy/com/baeldung/json/JsonParserTest.groovy
@@ -49,7 +49,7 @@ class JsonParserTest extends Specification {
             def json = jsonParser.toJson(account)
         then:
             json
-            json == '{"value":15.6,"createdAt":"2018-01-01T02:00:00+0000","id":"123"}'
+            json == '{"value":15.6,"createdAt":"2018-01-01T00:00:00+0000","id":"123"}'
     }
 
     def 'Should parse to Json given an Account object, a date format and fields to exclude' () {