/* *************************************************************************************** * 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.xml; import com.espertech.esper.client.EventBean; import com.espertech.esper.client.EventPropertyGetter; import com.espertech.esper.client.PropertyAccessException; import com.espertech.esper.util.SimpleTypeParser; import com.espertech.esper.util.SimpleTypeParserFactory; import org.w3c.dom.Node; import java.lang.reflect.Array; /** * Getter for converting a Node child nodes into an array. */ public class DOMConvertingArrayGetter implements EventPropertyGetter { private final DOMPropertyGetter getter; private final Class componentType; private final SimpleTypeParser parser; /** * Ctor. * * @param domPropertyGetter getter * @param returnType component type */ public DOMConvertingArrayGetter(DOMPropertyGetter domPropertyGetter, Class returnType) { this.getter = domPropertyGetter; this.componentType = returnType; this.parser = SimpleTypeParserFactory.getParser(returnType); } public Object get(EventBean obj) throws PropertyAccessException { // The underlying is expected to be a map if (!(obj.getUnderlying() instanceof Node)) { throw new PropertyAccessException("Mismatched property getter to event bean type, " + "the underlying data object is not of type Node"); } Node node = (Node) obj.getUnderlying(); Node[] result = getter.getValueAsNodeArray(node); if (result == null) { return null; } Object array = Array.newInstance(componentType, result.length); for (int i = 0; i < result.length; i++) { String text = result[i].getTextContent(); if ((text == null) || (text.length() == 0)) { continue; } Object parseResult = parser.parse(text); Array.set(array, i, parseResult); } return array; } public boolean isExistsProperty(EventBean eventBean) { return true; } public Object getFragment(EventBean eventBean) throws PropertyAccessException { return null; } }