protected String value2string(JsonEntityField jef, Object value) {
Format df = jef.getDataFormat();
if (df == null) {
Mirror mirror = Mirror.me(value);
if (value instanceof Date) {
df = format.getDateFormat();
} else if (mirror.isNumber()) {
df = format.getNumberFormat();
}
}
if (df != null) {
return df.format(value);
}
return value.toString();
}
@SuppressWarnings("unchecked")
private void pojo2Json(Object obj) throws IOException {
if (null == obj) return;
/*
* Default
*/
Class<?> type = obj.getClass();
JsonEntity jen = Json.getEntity(Mirror.me(type));
Method toJsonMethod = jen.getToJsonMethod();
if (toJsonMethod != null) {
try {
if (toJsonMethod.getParameterTypes().length == 0) {
writer.append(String.valueOf(toJsonMethod.invoke(obj)));
} else {
writer.append(String.valueOf(toJsonMethod.invoke(obj, format)));
}
return;
} catch (Exception e) {
throw Lang.wrapThrow(e);
}
}
List<JsonEntityField> fields = jen.getFields();
appendBraceBegin();
increaseFormatIndent();
ArrayList<Pair> list = new ArrayList<Pair>(fields.size());
for (JsonEntityField jef : fields) {
if (jef.isIgnore()) continue;
String name = jef.getName();
try {
Object value = jef.getValue(obj);
// 判断是否应该被忽略
if (!this.isIgnore(name, value)) {
Mirror mirror = null;
// 以前曾经输出过 ...
if (null != value) {
// zozoh: 循环引用的默认行为，应该为 null，以便和其他语言交换数据
mirror = Mirror.me(value);
if (mirror.isPojo()) {
if (memo.contains(value)) value = null;
}
}
// 如果是强制输出为字符串的
if (null != value && jef.isForceString()) {
// 数组
if (value.getClass().isArray()) {
String[] ss = new String[Array.getLength(value)];
for (int i = 0; i < ss.length; i++) {
ss[i] = Array.get(value, i).toString();
}
value = ss;
}
// 集合
else if (value instanceof Collection) {
Collection col = (Collection) Mirror.me(value).born();
for (Object ele : (Collection) value) {
col.add(ele.toString());
}
value = col;
}
// 其他统统变字符串
else {
value = value2string(jef, value);
}
} else if (jef.hasDataFormat() && null != value && value instanceof Date) {
value = jef.getDataFormat().format((Date) value);
} else if (jef.hasDataFormat() && null != value && mirror.isNumber()) {
value = jef.getDataFormat().format(value);
}
// 加入输出列表 ...
list.add(new Pair(name, value));
}
} catch (FailToGetValueException e) {
}
}
writeItem(list);
}