content: package com.alibaba.fastjson2.writer;
  
  import com.alibaba.fastjson2.JSONException;
  import com.alibaba.fastjson2.JSONWriter;
  
  import java.lang.reflect.Field;
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  
  final class FieldWriterStringMethod<T>
          extends FieldWriter<T> {
      FieldWriterStringMethod(
              String fieldName,
              int ordinal,
              String format,
              String label,
              long features,
              Field field,
              Method method
      ) {
          super(fieldName, ordinal, features, format, null, label, String.class, String.class, field, method);
      }
  
      @Override
      public Object getFieldValue(Object object) {
          try {
              return method.invoke(object);
          } catch (IllegalArgumentException | IllegalAccessException | InvocationTargetException e) {
              throw new JSONException("invoke getter method error, " + fieldName, e);
          }
      }
  
      @Override
      public void writeValue(JSONWriter jsonWriter, T object) {
          String value = (String) getFieldValue(object);
  
          if (trim && value != null) {
              value = value.trim();
          }
  
          if (symbol && jsonWriter.jsonb) {
              jsonWriter.writeSymbol(value);
          } else {
              if (raw) {
                  jsonWriter.writeRaw(value);
              } else {
                  jsonWriter.writeString(value);
              }
          }
      }
  
      @Override
      public boolean write(JSONWriter jsonWriter, T object) {
          String value;
          try {
              value = (String) getFieldValue(object);
          } catch (JSONException error) {
              if ((jsonWriter.getFeatures(features) | JSONWriter.Feature.IgnoreNonFieldGetter.mask) != 0) {
                  return false;
              }
              throw error;
          }
  
          long features = this.features | jsonWriter.getFeatures();
          if (value == null) {
              if ((features & (JSONWriter.Feature.WriteNulls.mask | JSONWriter.Feature.NullAsDefaultValue.mask | JSONWriter.Feature.WriteNullStringAsEmpty.mask)) == 0) {
                  return false;
              }
          } else if (trim) {
              value = value.trim();
          }
  
          if (value != null
                  && value.isEmpty()
                  && (features & JSONWriter.Feature.IgnoreEmpty.mask) != 0
          ) {
              return false;
          }
  
          writeString(jsonWriter, value);
          return true;
      }
  }
  