/*
* 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.myfaces.extensions.cdi.message.impl;
import org.apache.myfaces.extensions.cdi.message.api.NamedArgument;
import org.apache.myfaces.extensions.cdi.message.api.MessageContext;
import java.io.Serializable;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
/**
* @author Manfred Geiler
*/
public class NumberedArgumentAwareMessageInterpolator extends AbstractFormatterAwareMessageInterpolator
{
private static final long serialVersionUID = 8699632465559596371L;
public String interpolate(MessageContext messageContext, String messageDescriptor, Serializable... arguments)
{
Serializable[] numberedArguments = addNumberedArguments(arguments);
if (numberedArguments.length > 0)
{
return formatMessage(messageContext, messageDescriptor, numberedArguments);
}
return messageDescriptor;
}
private Serializable[] addNumberedArguments(Serializable[] arguments)
{
List<Serializable> result = new ArrayList<Serializable>();
for (Serializable argument : arguments)
{
if (!(argument instanceof NamedArgument))
{
result.add(argument);
}
}
return result.toArray(new Serializable[result.size()]);
}
//TODO add warning for unused arguments,...
private String formatMessage(MessageContext messageContext, String messageDescriptor, Serializable[] arguments)
{
Object[] localizedArguments = null;
Object argument;
Object localizedArgument;
for (int i = 0; i < arguments.length; i++)
{
argument = arguments[i];
localizedArgument = formatAsString(messageContext, argument);
if (localizedArgument != argument)
{
if (localizedArguments == null)
{
//TODO
localizedArguments = copyArguments(arguments);
}
localizedArguments[i] = localizedArgument;
}
}
MessageFormat messageFormat = new MessageFormat(messageDescriptor, messageContext.getLocale());
if (localizedArguments == null)
{
return messageFormat.format(arguments);
}
else
{
return messageFormat.format(localizedArguments);
}
}
private Object[] copyArguments(Object[] arguments)
{
Object[] result = new Object[arguments.length];
System.arraycopy(arguments, 0, result, 0, arguments.length);
return result;
}
}