jackson work

jackson/src/test/java/dtos/MyDto.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.ignore;
+package dtos;
 
 public class MyDto {
 

jackson/src/test/java/dtos/MyDtoFieldNameChanged.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.ignore;
+package dtos;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 

jackson/src/test/java/dtos/MyDtoIgnoreField.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.ignore;
+package dtos;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 

jackson/src/test/java/dtos/MyDtoIgnoreFieldByName.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.ignore;
+package dtos;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 

jackson/src/test/java/dtos/MyDtoIgnoreNull.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.ignore;
+package dtos;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonInclude.Include;

jackson/src/test/java/dtos/MyDtoIgnoreType.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.ignore;
+package dtos;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 

jackson/src/test/java/dtos/MyDtoIgnoreUnkown.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.ignore;
+package dtos;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 

jackson/src/test/java/dtos/MyDtoIncludeNonDefault.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.ignore;
+package dtos;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonInclude.Include;

jackson/src/test/java/dtos/MyDtoNoAccessors.java

@@ -0,0 +1,21 @@
+package dtos;
+
+public class MyDtoNoAccessors {
+
+    private String stringValue;
+    private int intValue;
+    private boolean booleanValue;
+
+    public MyDtoNoAccessors() {
+        super();
+    }
+
+    public MyDtoNoAccessors(final String stringValue, final int intValue, final boolean booleanValue) {
+        super();
+
+        this.stringValue = stringValue;
+        this.intValue = intValue;
+        this.booleanValue = booleanValue;
+    }
+
+}

jackson/src/test/java/dtos/MyDtoWithFilter.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.ignore;
+package dtos;
 
 import com.fasterxml.jackson.annotation.JsonFilter;
 

jackson/src/test/java/dtos/MyMixInForString.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.ignore;
+package dtos;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreType;
 

jackson/src/test/java/org/baeldung/jackson/test/JacksonCollectionDeserializationUnitTest.java

@@ -7,7 +7,6 @@ import java.io.IOException;
 import java.util.LinkedHashMap;
 import java.util.List;
 
-import org.baeldung.jackson.ignore.MyDto;
 import org.junit.Test;
 
 import com.fasterxml.jackson.core.JsonParseException;
@@ -17,6 +16,8 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.type.CollectionType;
 import com.google.common.collect.Lists;
 
+import dtos.MyDto;
+
 public class JacksonCollectionDeserializationUnitTest {
 
     // tests - json to multiple entity

jackson/src/test/java/org/baeldung/jackson/test/JacksonDeserializationUnitTest.java

@@ -6,19 +6,21 @@ import static org.junit.Assert.assertThat;
 
 import java.io.IOException;
 
-import org.baeldung.jackson.ignore.MyDto;
-import org.baeldung.jackson.ignore.MyDtoIgnoreUnkown;
 import org.junit.Test;
 
+import com.fasterxml.jackson.core.JsonFactory;
 import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException;
 
-public class JacksonDeserializationUnitTest {
+import dtos.MyDto;
+import dtos.MyDtoIgnoreUnkown;
 
-    // tests - json to single entity
+public class JacksonDeserializationUnitTest {
 
     @Test
     public final void whenDeserializingAJsonToAClass_thenCorrect() throws JsonParseException, JsonMappingException, IOException {
@@ -43,6 +45,8 @@ public class JacksonDeserializationUnitTest {
         assertThat(readValue.isBooleanValue(), equalTo(true));
     }
 
+    // tests - json with unknown fields
+
     @Test(expected = UnrecognizedPropertyException.class)
     public final void givenJsonHasUnkownValues_whenDeserializingAJsonToAClass_thenExceptionIsThrown() throws JsonParseException, JsonMappingException, IOException {
         final String jsonAsString = "{\"stringValue\":\"a\",\"intValue\":1,\"booleanValue\":true,\"stringValue2\":\"something\"}";
@@ -91,4 +95,39 @@ public class JacksonDeserializationUnitTest {
         assertThat(readValue.getIntValue(), equalTo(1));
     }
 
+    // to JsonNode
+
+    @Test
+    public final void whenParsingJsonStringIntoJsonNode_thenCorrect() throws JsonParseException, IOException {
+        final String jsonString = "{\"k1\":\"v1\",\"k2\":\"v2\"}";
+
+        final ObjectMapper mapper = new ObjectMapper();
+        final JsonNode actualObj = mapper.readTree(jsonString);
+
+        assertNotNull(actualObj);
+    }
+
+    @Test
+    public final void givenUsingLowLevelDetails_whenParsingJsonStringIntoJsonNode_thenCorrect() throws JsonParseException, IOException {
+        final String jsonString = "{\"k1\":\"v1\",\"k2\":\"v2\"}";
+
+        final ObjectMapper mapper = new ObjectMapper();
+        final JsonFactory factory = mapper.getFactory();
+        final JsonParser parser = factory.createParser(jsonString);
+        final JsonNode actualObj = mapper.readTree(parser);
+
+        assertNotNull(actualObj);
+    }
+
+    @Test
+    public final void givenTheJsonNode_whenRetrievingDataFromId_thenCorrect() throws JsonParseException, IOException {
+        final String jsonString = "{\"k1\":\"v1\",\"k2\":\"v2\"}";
+        final ObjectMapper mapper = new ObjectMapper();
+        final JsonNode actualObj = mapper.readTree(jsonString);
+
+        // When
+        final JsonNode jsonNode1 = actualObj.get("k1");
+        assertThat(jsonNode1.textValue(), equalTo("v1"));
+    }
+
 }

jackson/src/test/java/org/baeldung/jackson/test/JacksonSerializationUnitTest.java

@@ -7,14 +7,6 @@ import static org.junit.Assert.assertThat;
 import java.io.IOException;
 import java.util.List;
 
-import org.baeldung.jackson.ignore.MyDto;
-import org.baeldung.jackson.ignore.MyDtoFieldNameChanged;
-import org.baeldung.jackson.ignore.MyDtoIgnoreField;
-import org.baeldung.jackson.ignore.MyDtoIgnoreFieldByName;
-import org.baeldung.jackson.ignore.MyDtoIgnoreNull;
-import org.baeldung.jackson.ignore.MyDtoIncludeNonDefault;
-import org.baeldung.jackson.ignore.MyDtoWithFilter;
-import org.baeldung.jackson.ignore.MyMixInForString;
 import org.junit.Test;
 
 import com.fasterxml.jackson.annotation.JsonInclude.Include;
@@ -31,6 +23,15 @@ import com.fasterxml.jackson.databind.ser.impl.SimpleBeanPropertyFilter;
 import com.fasterxml.jackson.databind.ser.impl.SimpleFilterProvider;
 import com.google.common.collect.Lists;
 
+import dtos.MyDto;
+import dtos.MyDtoFieldNameChanged;
+import dtos.MyDtoIgnoreField;
+import dtos.MyDtoIgnoreFieldByName;
+import dtos.MyDtoIgnoreNull;
+import dtos.MyDtoIncludeNonDefault;
+import dtos.MyDtoWithFilter;
+import dtos.MyMixInForString;
+
 public class JacksonSerializationUnitTest {
 
     // tests - single entity to json
@@ -173,7 +174,7 @@ public class JacksonSerializationUnitTest {
     }
 
     @Test
-    public final void givenIgnoringNullFieldsOnClass_whenSerializingObjectWithNullField_thenFieldIsIgnored() throws JsonProcessingException {
+    public final void givenIgnoringNullFieldsOnClass_whenWritingObjectWithNullField_thenFieldIsIgnored() throws JsonProcessingException {
         final ObjectMapper mapper = new ObjectMapper();
         final MyDtoIgnoreNull dtoObject = new MyDtoIgnoreNull();
 
@@ -186,7 +187,7 @@ public class JacksonSerializationUnitTest {
     }
 
     @Test
-    public final void givenIgnoringNullFieldsGlobally_whenSerializingObjectWithNullField_thenFieldIsIgnroed() throws JsonProcessingException {
+    public final void givenIgnoringNullFieldsGlobally_whenWritingObjectWithNullField_thenIgnored() throws JsonProcessingException {
         final ObjectMapper mapper = new ObjectMapper();
         mapper.setSerializationInclusion(Include.NON_NULL);
         final MyDto dtoObject = new MyDto();