827N/A/*
2362N/A * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
827N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
827N/A *
827N/A * This code is free software; you can redistribute it and/or modify it
827N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
827N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
827N/A *
827N/A * This code is distributed in the hope that it will be useful, but WITHOUT
827N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
827N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
827N/A * version 2 for more details (a copy is included in the LICENSE file that
827N/A * accompanied this code).
827N/A *
827N/A * You should have received a copy of the GNU General Public License version
827N/A * 2 along with this work; if not, write to the Free Software Foundation,
827N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
827N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
827N/A */
827N/Apackage com.sun.beans.decoder;
827N/A
827N/Aimport java.beans.Expression;
827N/A
827N/Aimport static java.util.Locale.ENGLISH;
827N/A
827N/A/**
827N/A * This class is intended to handle <object> element.
827N/A * This element looks like <void> element,
827N/A * but its value is always used as an argument for element
827N/A * that contains this one.
827N/A * <p>The following atributes are supported:
827N/A * <dl>
827N/A * <dt>class
827N/A * <dd>the type is used for static methods and fields
827N/A * <dt>method
827N/A * <dd>the method name
827N/A * <dt>property
827N/A * <dd>the property name
827N/A * <dt>index
827N/A * <dd>the property index
827N/A * <dt>field
827N/A * <dd>the field name
827N/A * <dt>idref
827N/A * <dd>the identifier to refer to the variable
827N/A * <dt>id
827N/A * <dd>the identifier of the variable that is intended to store the result
827N/A * </dl>
827N/A *
827N/A * @since 1.7
827N/A *
827N/A * @author Sergey A. Malenkov
827N/A */
827N/Aclass ObjectElementHandler extends NewElementHandler {
827N/A private String idref;
827N/A private String field;
827N/A private Integer index;
827N/A private String property;
827N/A private String method;
827N/A
827N/A /**
827N/A * Parses attributes of the element.
827N/A * The following atributes are supported:
827N/A * <dl>
827N/A * <dt>class
827N/A * <dd>the type is used for static methods and fields
827N/A * <dt>method
827N/A * <dd>the method name
827N/A * <dt>property
827N/A * <dd>the property name
827N/A * <dt>index
827N/A * <dd>the property index
827N/A * <dt>field
827N/A * <dd>the field name
827N/A * <dt>idref
827N/A * <dd>the identifier to refer to the variable
827N/A * <dt>id
827N/A * <dd>the identifier of the variable that is intended to store the result
827N/A * </dl>
827N/A *
827N/A * @param name the attribute name
827N/A * @param value the attribute value
827N/A */
827N/A @Override
827N/A public final void addAttribute(String name, String value) {
827N/A if (name.equals("idref")) { // NON-NLS: the attribute name
827N/A this.idref = value;
827N/A } else if (name.equals("field")) { // NON-NLS: the attribute name
827N/A this.field = value;
827N/A } else if (name.equals("index")) { // NON-NLS: the attribute name
827N/A this.index = Integer.valueOf(value);
827N/A addArgument(this.index); // hack for compatibility
827N/A } else if (name.equals("property")) { // NON-NLS: the attribute name
827N/A this.property = value;
827N/A } else if (name.equals("method")) { // NON-NLS: the attribute name
827N/A this.method = value;
827N/A } else {
827N/A super.addAttribute(name, value);
827N/A }
827N/A }
827N/A
827N/A /**
827N/A * Calculates the value of this element
827N/A * if the field attribute or the idref attribute is set.
827N/A */
827N/A @Override
827N/A public final void startElement() {
827N/A if ((this.field != null) || (this.idref != null)) {
827N/A getValueObject();
827N/A }
827N/A }
827N/A
827N/A /**
827N/A * Tests whether the value of this element can be used
827N/A * as an argument of the element that contained in this one.
827N/A *
827N/A * @return {@code true} if the value of this element can be used
827N/A * as an argument of the element that contained in this one,
827N/A * {@code false} otherwise
827N/A */
827N/A @Override
827N/A protected boolean isArgument() {
827N/A return true; // hack for compatibility
827N/A }
827N/A
827N/A /**
827N/A * Creates the value of this element.
827N/A *
827N/A * @param type the base class
827N/A * @param args the array of arguments
827N/A * @return the value of this element
827N/A * @throws Exception if calculation is failed
827N/A */
827N/A @Override
827N/A protected final ValueObject getValueObject(Class<?> type, Object[] args) throws Exception {
827N/A if (this.field != null) {
827N/A return ValueObjectImpl.create(FieldElementHandler.getFieldValue(getContextBean(), this.field));
827N/A }
827N/A if (this.idref != null) {
827N/A return ValueObjectImpl.create(getVariable(this.idref));
827N/A }
827N/A Object bean = getContextBean();
827N/A String name;
827N/A if (this.index != null) {
827N/A name = (args.length == 2)
827N/A ? PropertyElementHandler.SETTER
827N/A : PropertyElementHandler.GETTER;
827N/A } else if (this.property != null) {
827N/A name = (args.length == 1)
827N/A ? PropertyElementHandler.SETTER
827N/A : PropertyElementHandler.GETTER;
827N/A
827N/A if (0 < this.property.length()) {
827N/A name += this.property.substring(0, 1).toUpperCase(ENGLISH) + this.property.substring(1);
827N/A }
827N/A } else {
827N/A name = (this.method != null) && (0 < this.method.length())
827N/A ? this.method
827N/A : "new"; // NON-NLS: the constructor marker
827N/A }
827N/A Expression expression = new Expression(bean, name, args);
827N/A return ValueObjectImpl.create(expression.getValue());
827N/A }
827N/A}