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-rw-r--r--src/main/java/design/persistence/importexport/JSONHandler.java35
1 files changed, 35 insertions, 0 deletions
diff --git a/src/main/java/design/persistence/importexport/JSONHandler.java b/src/main/java/design/persistence/importexport/JSONHandler.java
new file mode 100644
index 0000000..9c04281
--- /dev/null
+++ b/src/main/java/design/persistence/importexport/JSONHandler.java
@@ -0,0 +1,35 @@
+package design.persistence.importexport;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.json.JsonMapper;
+import design.persistence.Serializers;
+
+import java.io.File;
+import java.io.IOException;
+
+public class JSONHandler implements DataHandler {
+
+ private final DataSource dataSource;
+ private final ObjectMapper jsonMapper = new JsonMapper();
+
+ public JSONHandler(DataSource dataSource) {
+ this.dataSource = dataSource;
+
+ Serializers.configureMapper(jsonMapper);
+ jsonMapper.registerModule(dataSource.getJacksonModule());
+ }
+
+ @Override
+ public void importData(File file) throws IOException {
+ Object data = jsonMapper.readValue(file, dataSource.getTargetClass());
+ dataSource.importData(data);
+ }
+
+ @Override
+ public void exportData(File file) throws IOException{
+ Object data = dataSource.exportData();
+ jsonMapper.writer(new Serializers.CustomPrettyPrinter())
+ .writeValue(file, data);
+ }
+}
+
+