/* $Id: SetPropertiesRuleProvider.java 992060 2010-09-02 19:09:47Z simonetripodi $
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.commons.digester.annotations.providers;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.commons.digester.SetPropertiesRule;
import org.apache.commons.digester.annotations.AnnotationRuleProvider;
import org.apache.commons.digester.annotations.rules.SetProperty;
Provides instances of SetPropertiesRule
. Since: 2.1
/**
* Provides instances of {@code SetPropertiesRule}.
*
* @since 2.1
*/
public final class SetPropertiesRuleProvider implements AnnotationRuleProvider<SetProperty, Field, SetPropertiesRule> {
The data structure that stores the aliases.
/**
* The data structure that stores the aliases.
*/
private final Map<String, String> aliases = new HashMap<String, String>();
{@inheritDoc}
/**
* {@inheritDoc}
*/
public void init(SetProperty annotation, Field element) {
this.addAlias(annotation, element);
}
Adds a new alias attribute/property name; if the attribute name is not
specified, the alias will be considered as property name identity.
Params: - annotation – the
SetProperty
reference. - element – the annotated element reference.
/**
* Adds a new alias attribute/property name; if the attribute name is not
* specified, the alias will be considered as property name identity.
*
* @param annotation the {@link SetProperty} reference.
* @param element the annotated element reference.
*/
public void addAlias(SetProperty annotation, Field element) {
String attributeName = annotation.attributeName();
String propertyName = element.getName();
if (attributeName.length() > 0) {
this.aliases.put(attributeName, propertyName);
} else {
this.aliases.put(propertyName, propertyName);
}
}
{@inheritDoc}
/**
* {@inheritDoc}
*/
public SetPropertiesRule get() {
String[] attributeNames = new String[this.aliases.size()];
String[] propertyNames = new String[this.aliases.size()];
int i = 0;
for (Entry<String, String> alias : this.aliases.entrySet()) {
attributeNames[i] = alias.getKey();
propertyNames[i++] = alias.getValue();
}
return new SetPropertiesRule(attributeNames, propertyNames);
}
}