nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/JsonWriter.java

   1 package org.asamk.signal;
   2
   3 import com.fasterxml.jackson.annotation.JsonAutoDetect;
   4 import com.fasterxml.jackson.annotation.PropertyAccessor;
   5 import com.fasterxml.jackson.core.JsonGenerator;
   6 import com.fasterxml.jackson.core.JsonProcessingException;
   7 import com.fasterxml.jackson.databind.ObjectMapper;
   8
   9 import java.io.IOException;
  10 import java.io.OutputStream;
  11 import java.io.OutputStreamWriter;
  12 import java.nio.charset.StandardCharsets;
  13
  14 public class JsonWriter {
  15
  16     private final OutputStreamWriter writer;
  17     private final ObjectMapper objectMapper;
  18
  19     public JsonWriter(final OutputStream writer) {
  20         this.writer = new OutputStreamWriter(writer, StandardCharsets.UTF_8);
  21
  22         objectMapper = new ObjectMapper();
  23         objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.PUBLIC_ONLY);
  24         objectMapper.disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);
  25     }
  26
  27     public void write(final Object object) throws IOException {
  28         try {
  29             objectMapper.writeValue(writer, object);
  30         } catch (JsonProcessingException e) {
  31             // Some issue with json serialization, probably caused by a bug
  32             throw new AssertionError(e);
  33         }
  34         writer.write(System.lineSeparator());
  35         writer.flush();
  36     }
  37 }