/*
* Copyright 2004, 2005, 2006 Odysseus Software GmbH
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package de.odysseus.calyxo.forms.conf.impl;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Locale;
import de.odysseus.calyxo.base.conf.ConfigException;
import de.odysseus.calyxo.base.conf.impl.RootConfigImpl;
import de.odysseus.calyxo.forms.conf.FormConfig;
import de.odysseus.calyxo.forms.conf.FormsConfig;
import de.odysseus.calyxo.forms.conf.FormsRootConfig;
import de.odysseus.calyxo.forms.conf.ValidatorsConfig;
/**
* Forms root configuration implementation.
*
* @author Christoph Beck
* @author Oliver Stuhr
*/
public class FormsRootConfigImpl extends RootConfigImpl implements FormsRootConfig {
private ValidatorsConfigImpl validatorsConfig;
private HashMap formsConfigsByLocale = new HashMap();
private HashMap formsConfigs = new HashMap();
private HashMap localesByLanguage = new HashMap();
private Locale defaultLocale = new Locale("", "");
/*
* (non-Javadoc)
* @see de.odysseus.calyxo.base.conf.impl.RootConfigImpl#merge(de.odysseus.calyxo.base.conf.impl.RootConfigImpl)
*/
protected void merge(RootConfigImpl other) throws ConfigException {
merge((FormsRootConfigImpl)other);
}
/**
* Merge other validation element into the receiver.
* This method merges the validators element and forms elements.
*/
void merge(FormsRootConfigImpl other) throws ConfigException {
if (validatorsConfig == null) {
validatorsConfig = other.validatorsConfig;
} else {
validatorsConfig.merge(other.validatorsConfig);
}
Iterator configs = other.getFormsConfigs();
while (configs.hasNext()) {
FormsConfigImpl value = (FormsConfigImpl)configs.next();
String key = getFormsKey(value);
FormsConfigImpl formsConfig =
(FormsConfigImpl)formsConfigs.get(key);
if (formsConfig == null) {
formsConfigs.put(key, value);
} else {
formsConfig.merge(value);
}
}
}
/*
* (non-Javadoc)
* @see de.odysseus.calyxo.base.conf.impl.ConfigImpl#_getElementName()
*/
protected String _getElementName() {
return "calyxo-forms-config";
}
/*
* (non-Javadoc)
* @see de.odysseus.calyxo.base.conf.impl.ConfigImpl#_addChildren(de.odysseus.calyxo.base.conf.impl.ConfigImpl.Elements)
*/
protected void _addChildren(Elements list) {
super._addChildren(list);
list.add(getValidatorsConfig());
list.add(getFormsConfigs());
}
/**
* Initialize forms by locale lookup.
* @see de.odysseus.calyxo.base.conf.impl.ConfigImpl#_init2()
*/
protected void _init2() throws ConfigException {
super._init2();
Iterator iter = formsConfigs.values().iterator();
while (iter.hasNext()) {
FormsConfigImpl value = (FormsConfigImpl)iter.next();
formsConfigsByLocale.put(value.getLocale(), value);
}
}
/**
* Create forms key. This key is used, before the locales
* of forms elements have been computed.
*/
private String getFormsKey(FormsConfigImpl value) {
StringBuffer key = new StringBuffer();
if (value.getLanguage() != null) {
key.append(value.getLanguage());
if (value.getCountry() != null) {
key.append("_");
key.append(value.getCountry());
if (value.getVariant() != null) {
key.append("_");
key.append(value.getVariant());
}
}
}
return key.toString();
}
/**
* Lookup form by name and locale (exact match).
*/
private FormConfig getFormConfig(String name, Locale locale) {
FormsConfig formsConfig = (FormsConfig)formsConfigsByLocale.get(locale);
if (formsConfig != null) {
FormConfig formConfig = formsConfig.getFormConfig(name);
if (formConfig != null) {
return formConfig;
}
}
return null;
}
/**
* Get locale specified by language and country codes from locale cache.
* This method is used by to find locale generalizations. A new locale
* instance is created and cached if necessary.
*/
private Locale getCachedLocale(String language, String country) {
HashMap byCountry = (HashMap)localesByLanguage.get(language);
if (byCountry == null) {
localesByLanguage.put(language, byCountry = new HashMap());
}
Locale locale = (Locale)byCountry.get(country);
if (locale == null) {
byCountry.put(country, locale = new Locale(language, country));
}
return locale;
}
/**
* Generalize locale
*/
Locale generalize(Locale locale) {
if (locale == defaultLocale) { // quick check
return null;
} else {
if (locale.getVariant().length() > 0) {
return getCachedLocale(locale.getLanguage(), locale.getCountry());
} else if (locale.getCountry().length() > 0) {
return getCachedLocale(locale.getLanguage(), "");
} else if (locale.getLanguage().length() > 0) {
return defaultLocale;
}
return null;
}
}
/**
* Add forms element
*/
public void add(FormsConfigImpl value) throws ConfigException {
String key = getFormsKey(value);
if (formsConfigs.containsKey(key)) {
throw new ConfigException("Duplicate forms for key '" + key + "' in " + toInlineString());
}
formsConfigs.put(key, value);
}
/*
* (non-Javadoc)
* @see de.odysseus.calyxo.forms.conf.FormsRootConfig#getFormsConfigs()
*/
public Iterator getFormsConfigs() {
return formsConfigs.values().iterator();
}
/*
* (non-Javadoc)
* @see de.odysseus.calyxo.forms.conf.FormsRootConfig#findFormConfig(java.lang.String, java.util.Locale)
*/
public FormConfig findFormConfig(String name, Locale locale) {
if (locale == null) {
locale = defaultLocale;
}
do {
FormConfig result = getFormConfig(name, locale);
if (result != null)
return result;
locale = generalize(locale);
} while (locale != null);
return null;
}
/**
* Set the validators element
*/
public void setValidatorsConfig(ValidatorsConfigImpl value) {
validatorsConfig = value;
}
/*
* (non-Javadoc)
* @see de.odysseus.calyxo.forms.conf.FormsRootConfig#getValidatorsConfig()
*/
public ValidatorsConfig getValidatorsConfig() {
return validatorsConfig;
}
}