BeansWriterASM.java

package net.minidev.json.reader;

import java.io.IOException;
import net.minidev.asm.Accessor;
import net.minidev.asm.BeansAccess;
import net.minidev.json.JSONObject;
import net.minidev.json.JSONStyle;
import net.minidev.json.JSONUtil;

public class BeansWriterASM implements JsonWriterI<Object> {
  public <E> void writeJSONString(E value, Appendable out, JSONStyle compression)
      throws IOException {
    try {
      Class<?> cls = value.getClass();
      boolean needSep = false;
      @SuppressWarnings("rawtypes")
      BeansAccess fields = BeansAccess.get(cls, JSONUtil.JSON_SMART_FIELD_FILTER);
      out.append('{');
      for (Accessor field : fields.getAccessors()) {
        @SuppressWarnings("unchecked")
        Object v = fields.get(value, field.getIndex());
        if (v == null && compression.ignoreNull()) continue;
        if (needSep) out.append(',');
        else needSep = true;
        String key = field.getName();
        JSONObject.writeJSONKV(key, v, out, compression);
      }
      out.append('}');
    } catch (IOException e) {
      throw e;
    }
  }
}