diff options
Diffstat (limited to 'src/main/java/design/persistence/importexport/JSONHandler.java')
| -rw-r--r-- | src/main/java/design/persistence/importexport/JSONHandler.java | 35 |
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); + } +} + + |
