/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.event.bean;
import com.espertech.esper.client.ConfigurationEventTypeLegacy;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.LinkedList;
import java.util.List;
/**
* Implementation for a property list builder that considers any public method
* and public field as the exposed event properties, plus any explicitly configured props.
*/
public class PropertyListBuilderPublic implements PropertyListBuilder {
private ConfigurationEventTypeLegacy legacyConfig;
/**
* Ctor.
*
* @param legacyConfig configures legacy type
*/
public PropertyListBuilderPublic(ConfigurationEventTypeLegacy legacyConfig) {
if (legacyConfig == null) {
throw new IllegalArgumentException("Required configuration not passed");
}
this.legacyConfig = legacyConfig;
}
public List<InternalEventPropDescriptor> assessProperties(Class clazz) {
List<InternalEventPropDescriptor> result = new LinkedList<InternalEventPropDescriptor>();
PropertyListBuilderExplicit.getExplicitProperties(result, clazz, legacyConfig);
addPublicFields(result, clazz);
addPublicMethods(result, clazz);
return result;
}
private static void addPublicMethods(List<InternalEventPropDescriptor> result, Class clazz) {
Method[] methods = clazz.getMethods();
for (int i = 0; i < methods.length; i++) {
if (methods[i].getReturnType() == void.class) {
continue;
}
if (methods[i].getParameterTypes().length >= 2) {
continue;
}
if (methods[i].getParameterTypes().length == 1) {
Class parameterType = methods[i].getParameterTypes()[0];
if ((parameterType != int.class) && ((parameterType != Integer.class)) &&
(parameterType != String.class)) {
continue;
}
}
InternalEventPropDescriptor desc = PropertyListBuilderExplicit.makeMethodDesc(methods[i], methods[i].getName());
result.add(desc);
}
PropertyHelper.removeJavaProperties(result);
}
private static void addPublicFields(List<InternalEventPropDescriptor> result, Class clazz) {
Field[] fields = clazz.getFields();
for (int i = 0; i < fields.length; i++) {
InternalEventPropDescriptor desc = PropertyListBuilderExplicit.makeFieldDesc(fields[i], fields[i].getName());
result.add(desc);
}
}
}