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Refactor PersonWriter

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This commit is contained in:
pivovarit 2017-01-17 06:38:31 +01:00
parent e17dd32c49
commit ffd8963fd5
1 changed files with 24 additions and 31 deletions
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29
jee7/src/main/java/com/baeldung/json/PersonWriter.java
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@ -1,5 +1,7 @@
package com.baeldung.json; package com.baeldung.json;
import javax.json.*;
import javax.json.stream.JsonGenerator;
import java.io.IOException; import java.io.IOException;
import java.io.StringWriter; import java.io.StringWriter;
import java.io.Writer; import java.io.Writer;
@ -7,13 +9,6 @@ import java.text.SimpleDateFormat;
import java.util.HashMap; import java.util.HashMap;
import java.util.Map; import java.util.Map;
import javax.json.Json;
import javax.json.JsonArrayBuilder;
import javax.json.JsonObject;
import javax.json.JsonObjectBuilder;
import javax.json.JsonWriterFactory;
import javax.json.stream.JsonGenerator;
public class PersonWriter { public class PersonWriter {
private Person person; private Person person;
@ -24,16 +19,15 @@ public class PersonWriter {
} }
public String write() throws IOException { public String write() throws IOException {
JsonObjectBuilder objectBuilder = Json.createObjectBuilder() JsonObjectBuilder objectBuilder = Json
.createObjectBuilder()
.add("firstName", person.getFirstName()) .add("firstName", person.getFirstName())
.add("lastName", person.getLastName()) .add("lastName", person.getLastName())
.add("birthdate", dateFormat.format(person.getBirthdate())); .add("birthdate", dateFormat.format(person.getBirthdate()));
JsonArrayBuilder arrayBuilder = Json.createArrayBuilder(); final JsonArrayBuilder arrayBuilder = Json.createArrayBuilder();
for(String email : person.getEmails()) { person.getEmails().forEach(arrayBuilder::add);
arrayBuilder.add(email);
}
objectBuilder.add("emails", arrayBuilder); objectBuilder.add("emails", arrayBuilder);
@ -41,16 +35,16 @@ public class PersonWriter {
JsonWriterFactory writerFactory = createWriterFactory(); JsonWriterFactory writerFactory = createWriterFactory();
String jsonString = writeToString(jsonObject, writerFactory); return writeToString(jsonObject, writerFactory);
return jsonString;
} }
private String writeToString(JsonObject jsonObject, JsonWriterFactory writerFactory) throws IOException { private String writeToString(JsonObject jsonObject, JsonWriterFactory writerFactory) throws IOException {
String jsonString; String jsonString;
try (Writer writer = new StringWriter()) { try (Writer writer = new StringWriter()) {
writerFactory.createWriter(writer).write(jsonObject); writerFactory
.createWriter(writer)
.write(jsonObject);
jsonString = writer.toString(); jsonString = writer.toString();
} }
return jsonString; return jsonString;
@ -61,7 +55,6 @@ public class PersonWriter {
config.put(JsonGenerator.PRETTY_PRINTING, true); config.put(JsonGenerator.PRETTY_PRINTING, true);
JsonWriterFactory writerFactory = Json.createWriterFactory(config); return Json.createWriterFactory(config);
return writerFactory;
} }
} }