remove unused DocumentDbConverter (#133)

* remove unused DocumentDbConverter

* remove gson

pom.xml

@@ -47,7 +47,6 @@
 
         <spring.springframework.version>5.0.5.RELEASE</spring.springframework.version>
         <spring.data.version>2.0.1.RELEASE</spring.data.version>
-        <google.gson.version>2.8.2</google.gson.version>
 
         <mockito.core.version>2.8.9</mockito.core.version>
         <powermock.version>1.7.1</powermock.version>
@@ -112,12 +111,6 @@
             <version>${azure.documentdb.version}</version>
         </dependency>
 
-        <dependency>
-            <groupId>com.google.code.gson</groupId>
-            <artifactId>gson</artifactId>
-            <version>${google.gson.version}</version>
-        </dependency>
-
         <dependency>
             <groupId>com.microsoft.azure</groupId>
             <artifactId>applicationinsights-core</artifactId>

src/main/java/com/microsoft/azure/spring/data/cosmosdb/core/convert/DocumentDbConverter.java

@@ -1,30 +0,0 @@
-/**
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See LICENSE in the project root for
- * license information.
- */
-
-package com.microsoft.azure.spring.data.cosmosdb.core.convert;
-
-import com.google.gson.Gson;
-import com.microsoft.azure.documentdb.Document;
-
-public class DocumentDbConverter {
-
-    private final Gson gson;
-
-    public DocumentDbConverter() {
-        gson = new Gson();
-    }
-
-    public <T> Document convertToDocument(T entity) {
-        final String json = this.gson.toJson(entity);
-
-        return new Document(json);
-    }
-
-    public <T> T convertFromDocument(Document document, Class<T> entityClass) {
-        return this.gson.fromJson(document.toJson(), entityClass);
-    }
-
-}

src/test/java/com/microsoft/azure/spring/data/cosmosdb/core/converter/DocumentDbConverterUnitTest.java

@@ -1,72 +0,0 @@
-/**
- * Copyright (c) Microsoft Corporation. All rights reserved.
- * Licensed under the MIT License. See LICENSE in the project root for
- * license information.
- */
-
-package com.microsoft.azure.spring.data.cosmosdb.core.converter;
-
-
-import com.microsoft.azure.documentdb.Document;
-import com.microsoft.azure.spring.data.cosmosdb.common.TestConstants;
-import com.microsoft.azure.spring.data.cosmosdb.core.convert.DocumentDbConverter;
-import com.microsoft.azure.spring.data.cosmosdb.domain.Address;
-import com.microsoft.azure.spring.data.cosmosdb.domain.Person;
-import org.json.JSONObject;
-import org.junit.Before;
-import org.junit.Test;
-
-import java.util.Collection;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.junit.Assert.assertTrue;
-
-public class DocumentDbConverterUnitTest {
-    private DocumentDbConverter dbConverter;
-
-    @Before
-    public void setup() {
-        dbConverter = new DocumentDbConverter();
-    }
-
-    @Test
-    public void testConvertFromEntityToDocument() {
-        final Person person = new Person(TestConstants.ID, TestConstants.FIRST_NAME,
-                TestConstants.LAST_NAME, TestConstants.HOBBIES, TestConstants.ADDRESSES);
-        final Document document = dbConverter.convertToDocument(person);
-
-        assertTrue(document.has(TestConstants.PROPERTY_ID));
-        assertTrue(document.has(TestConstants.PROPERTY_FIRST_NAME));
-        assertTrue(document.has(TestConstants.PROPERTY_LAST_NAME));
-        assertTrue(document.has(TestConstants.PROPERTY_HOBBIES));
-        assertTrue(document.has(TestConstants.PROPERTY_SHIPPING_ADDRESSES));
-        assertThat(document.getId()).isEqualTo(TestConstants.ID);
-        assertThat(document.getString(TestConstants.PROPERTY_FIRST_NAME)).isEqualTo(TestConstants.FIRST_NAME);
-        assertThat(document.getString(TestConstants.PROPERTY_LAST_NAME)).isEqualTo(TestConstants.LAST_NAME);
-
-        final Collection<String> gotHobbies = document.getCollection(TestConstants.PROPERTY_HOBBIES, String.class);
-        assertTrue(TestConstants.HOBBIES.equals(gotHobbies));
-
-        final Collection<Address> gotAddresses =
-                document.getCollection(TestConstants.PROPERTY_SHIPPING_ADDRESSES, Address.class);
-        assertTrue(TestConstants.ADDRESSES.equals(gotAddresses));
-    }
-
-    @Test
-    public void testConvertFromDocumentToEntity() {
-        final JSONObject json = new JSONObject();
-        json.put(TestConstants.PROPERTY_ID, TestConstants.ID);
-        json.put(TestConstants.PROPERTY_FIRST_NAME, TestConstants.FIRST_NAME);
-        json.put(TestConstants.PROPERTY_LAST_NAME, TestConstants.LAST_NAME);
-        json.put(TestConstants.PROPERTY_HOBBIES, TestConstants.HOBBIES);
-        json.put(TestConstants.PROPERTY_SHIPPING_ADDRESSES, TestConstants.ADDRESSES);
-
-        final Document document = new Document(JSONObject.valueToString(json));
-        final Person person = dbConverter.convertFromDocument(document, Person.class);
-        assertThat(person.getId()).isEqualTo(TestConstants.ID);
-        assertThat(person.getFirstName()).isEqualTo(TestConstants.FIRST_NAME);
-        assertThat(person.getLastName()).isEqualTo(TestConstants.LAST_NAME);
-        assertThat(person.getHobbies()).isEqualTo(TestConstants.HOBBIES);
-        assertThat(person.getShippingAddresses()).isEqualTo(TestConstants.ADDRESSES);
-    }
-}