package org.jboss.as.console.client.shared.expr;
import com.google.gwt.autobean.shared.AutoBean;
import com.google.gwt.autobean.shared.AutoBeanUtils;
import java.util.HashMap;
import java.util.Map;
/**
* API to read/write expression overlays on entities.
*
* @author Heiko Braun
* @date 10/17/11
*/
public class ExpressionAdapter {
private static final String EXPR_TAG = "EXPRESSIONS";
public static Map<String,String> getExpressions(Object bean)
{
final AutoBean autoBean = asAutoBean(bean);
Map<String, String> exprMap = (Map<String,String>)autoBean.getTag(EXPR_TAG);
if(null==exprMap)
{
exprMap = new HashMap<String,String>();
autoBean.setTag(EXPR_TAG, exprMap);
}
return exprMap;
}
private static AutoBean asAutoBean(Object bean) {
final AutoBean autoBean = AutoBeanUtils.getAutoBean(bean);
if(null==autoBean)
throw new IllegalArgumentException("Not an auto bean: " + bean.getClass());
return autoBean;
}
public static void setExpressionValue(Object entity, String javaName, String exprValue) {
getExpressions(entity).put(javaName, exprValue);
}
public static String getExpressionValue(Object entity, String javaName) {
return getExpressions(entity).get(javaName);
}
}