public Object getAttachment(String key) {
if (StringUtil.isEmpty(key)) {
return null;
}
if (attachments == null) {
return null;
} else {
return attachments.get(key);
}
}
/**
* Grain the request string array parameter by key
*
* @param key request parameter
* @param split split string
* @return string array by split the value that get by key
*/
public String[] getParameterStringArray(String key, String split) {
String value = getParameter(key);
if (StringUtil.isEmpty(value)) {
throw new IllegalArgumentException(
"The parameter ["
+ key
+ "] 's value should not be null, interface should be contain the value.");
}
String[] values = value.split(split);
return values;
}
/**
* Get the request parameter value by key
*
* @param key the request parameter key
* @return the request parameter value
*/
@Override
public String getParameter(String key) {
if (StringUtil.isEmpty(key)) {
throw new IllegalArgumentException("Argument should not be null or empty.");
}
List<String> value = getParameters().get(key);
if (value == null) {
return null;
}
return value.get(0);
}