com.sun.faces.flow.MethodCallNodeImpl Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of jakarta.faces Show documentation
EE4J Compatible Implementation for Jakarta Faces API
The newest version!
/*
 * Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package com.sun.faces.flow;

import java.io.Serializable;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.logging.Level;
import java.util.logging.Logger;

import com.sun.faces.facelets.util.ReflectionUtil;
import com.sun.faces.util.FacesLogger;

import jakarta.el.ELContext;
import jakarta.el.ExpressionFactory;
import jakarta.el.MethodExpression;
import jakarta.el.ValueExpression;
import jakarta.faces.context.FacesContext;
import jakarta.faces.flow.MethodCallNode;
import jakarta.faces.flow.Parameter;

public class MethodCallNodeImpl extends MethodCallNode implements Serializable {

    private static final long serialVersionUID = -5400138716176841428L;

    private final String id;

    private static final Logger LOGGER = FacesLogger.FLOW.getLogger();

    public MethodCallNodeImpl(String id) {
        this.id = id;
        _parameters = new CopyOnWriteArrayList<>();
    }

    public MethodCallNodeImpl(FacesContext context, String id, String methodExpressionString, String defaultOutcomeString,
            List parametersFromConfig) {
        this(id);
        if (null != parametersFromConfig) {
            _parameters.addAll(parametersFromConfig);
        }
        parameters = Collections.unmodifiableList(_parameters);

        ExpressionFactory ef = context.getApplication().getExpressionFactory();
        Class[] paramTypes = new Class[0];
        if (0 < parameters.size()) {
            paramTypes = new Class[parameters.size()];
            int i = 0;
            for (Parameter cur : parameters) {
                if (null != cur.getName()) {
                    try {
                        paramTypes[i] = ReflectionUtil.forName(cur.getName());
                    } catch (ClassNotFoundException cnfe) {
                        if (LOGGER.isLoggable(Level.SEVERE)) {
                            LOGGER.log(Level.SEVERE, "parameter " + cur.getName() + "incorrect type", cnfe);
                        }
                        paramTypes[i] = null;
                    }
                } else {
                    paramTypes[i] = String.class;
                }
                i++;
            }
        }
        ELContext elContext = context.getELContext();
        methodExpression = ef.createMethodExpression(elContext, methodExpressionString, null, paramTypes);

        if (null != defaultOutcomeString) {
            outcome = ef.createValueExpression(elContext, defaultOutcomeString, Object.class);
        }

    }

    private MethodExpression methodExpression;

    private ValueExpression outcome;

    private List _parameters;
    private List parameters;

    @Override
    public String getId() {
        return id;
    }

    @Override
    public List getParameters() {
        return parameters;
    }

    public List _getParameters() {
        if (null == parameters) {
            parameters = Collections.unmodifiableList(_parameters);
        }
        return _parameters;
    }

    @Override
    public MethodExpression getMethodExpression() {
        return methodExpression;
    }

    public void setMethodExpression(MethodExpression methodExpression) {
        this.methodExpression = methodExpression;
    }

    @Override
    public ValueExpression getOutcome() {
        return outcome;
    }

    public void setOutcome(ValueExpression outcome) {
        this.outcome = outcome;
    }

}