/*
* Copyright 2011 cruxframework.org
*
* 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 org.cruxframework.crux.core.server.rest.core.dispatch;
import java.lang.reflect.Type;
import java.util.List;
import org.cruxframework.crux.core.server.rest.spi.HttpRequest;
import org.cruxframework.crux.core.server.rest.spi.InternalServerErrorException;
import org.cruxframework.crux.core.utils.ClassUtils;
/**
*
* @author Thiago da Rosa de Bustamante
*
*/
public class PathParamInjector extends StringParameterInjector implements ValueInjector
{
public PathParamInjector(Type type, String paramName, String defaultValue)
{
super(ClassUtils.getRawType(type), paramName, defaultValue);
}
public Object inject(HttpRequest request)
{
List<String> list = request.getUri().getPathParameters(true).get(paramName);
if (list == null)
{
throw new InternalServerErrorException("Unknown @PathParam: " + paramName + " for path: " + request.getUri().getPath(), "Can not execute requested service with informed params.");
}
if (list != null && list.size() > 0)
{
return extractValue(list.get(list.size() - 1));
}
return null;
}
}