com.sun.faces.config.processor.NavigationConfigProcessor Maven / Gradle / Ivy
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/*
* $Id: NavigationConfigProcessor.java,v 1.5.4.1 2009/12/07 23:08:44 rlubke Exp $
*/
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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* as provided by Sun in the GPL Version 2 section of the License file that
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package com.sun.faces.config.processor;
import com.sun.faces.application.ApplicationAssociate;
import com.sun.faces.application.ConfigNavigationCase;
import com.sun.faces.util.FacesLogger;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import javax.servlet.ServletContext;
import javax.xml.xpath.XPathExpressionException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.text.MessageFormat;
/**
*
* This ConfigProcessor handles all elements defined under
* /faces-config/managed-bean.
*
*/
public class NavigationConfigProcessor extends AbstractConfigProcessor {
private static final Logger LOGGER = FacesLogger.CONFIG.getLogger();
/**
* /faces-config/navigation-rule
*/
private static final String NAVIGATION_RULE = "navigation-rule";
/**
* /faces-config/navigation-rule/from-view-id
*/
private static final String FROM_VIEW_ID = "from-view-id";
/**
* /faces-config/navigation-rule/navigation-case
*/
private static final String NAVIGATION_CASE = "navigation-case";
/**
* /faces-config/navigation-rule/navigation-case/from-action
*/
private static final String FROM_ACTION = "from-action";
/**
* /faces-config/navigation-rule/navigation-case/from-outcome
*/
private static final String FROM_OUTCOME = "from-outcome";
/**
* /faces-config/navigation-rule/navigation-case/to-view-id
*/
private static final String TO_VIEW_ID = "to-view-id";
/**
* /faces-config/navigation-rule/navigation-case/redirect
*/
private static final String REDIRECT = "redirect";
/**
* If from-view-id is not defined.
*/
private static final String FROM_VIEW_ID_DEFAULT = "*";
// -------------------------------------------- Methods from ConfigProcessor
/**
* @see ConfigProcessor#process(ServletContext,org.w3c.dom.Document[])
*/
public void process(ServletContext sc, Document[] documents)
throws Exception {
for (Document document : documents) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE,
MessageFormat.format(
"Processing navigation-rule elements for document: ''{0}''",
document.getDocumentURI()));
}
String namespace = document.getDocumentElement()
.getNamespaceURI();
NodeList navigationRules = document.getDocumentElement()
.getElementsByTagNameNS(namespace, NAVIGATION_RULE);
if (navigationRules != null && navigationRules.getLength() > 0) {
addNavigationRules(navigationRules, sc);
}
}
invokeNext(sc, documents);
}
// --------------------------------------------------------- Private Methods
private void addNavigationRules(NodeList navigationRules, ServletContext sc)
throws XPathExpressionException {
for (int i = 0, size = navigationRules.getLength(); i < size; i++) {
Node navigationRule = navigationRules.item(i);
if (navigationRule.getNodeType() == Node.ELEMENT_NODE) {
NodeList children = navigationRule.getChildNodes();
String fromViewId = FROM_VIEW_ID_DEFAULT;
List navigationCases = null;
for (int c = 0, csize = children.getLength();
c < csize;
c++) {
Node n = children.item(c);
if (n.getNodeType() == Node.ELEMENT_NODE) {
if (FROM_VIEW_ID.equals(n.getLocalName())) {
String t = getNodeText(n);
fromViewId = ((t == null)
? FROM_VIEW_ID_DEFAULT
: t);
if (!fromViewId.equals(FROM_VIEW_ID_DEFAULT) && fromViewId.charAt(0) != '/') {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(Level.WARNING,
"jsf.config.navigation.from_view_id_leading_slash",
new String[] { fromViewId });
}
fromViewId = '/' + fromViewId;
}
} else if (NAVIGATION_CASE.equals(n.getLocalName())) {
if (navigationCases == null) {
navigationCases = new ArrayList(csize);
}
navigationCases.add(n);
}
}
}
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE,
MessageFormat.format(
"Processing navigation rule with 'from-view-id' of ''{0}''",
fromViewId));
}
addNavigationCasesForRule(fromViewId,
navigationCases,
sc);
}
}
}
private void addNavigationCasesForRule(String fromViewId,
List navigationCases,
ServletContext sc) {
if (navigationCases != null && !navigationCases.isEmpty()) {
ApplicationAssociate associate =
ApplicationAssociate.getInstance(sc);
if (associate == null) {
return;
}
for (Node navigationCase : navigationCases) {
if (navigationCase.getNodeType() != Node.ELEMENT_NODE) {
continue;
}
NodeList children = navigationCase.getChildNodes();
String outcome = null;
String action = null;
String toViewId = null;
boolean redirect = false;
for (int i = 0, size = children.getLength(); i < size; i++) {
Node n = children.item(i);
if (n.getNodeType() == Node.ELEMENT_NODE) {
if (FROM_OUTCOME.equals(n.getLocalName())) {
outcome = getNodeText(n);
} else if (FROM_ACTION.equals(n.getLocalName())) {
action = getNodeText(n);
} else if (TO_VIEW_ID.equals(n.getLocalName())) {
toViewId = getNodeText(n);
if (toViewId.charAt(0) != '/') {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(Level.WARNING,
"jsf.config.navigation.to_view_id_leading_slash",
new String[] { toViewId,
fromViewId });
}
toViewId = '/' + toViewId;
}
} else if (REDIRECT.equals(n.getLocalName())) {
redirect = true;
}
}
}
ConfigNavigationCase cnc =
new ConfigNavigationCase(fromViewId,
action,
outcome,
toViewId,
redirect);
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE,
MessageFormat.format("Adding NavigationCase: {0}",
cnc.toString()));
}
associate.addNavigationCase(cnc);
}
}
}
}