/**
* 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.jooby.internal.mvc;
import java.lang.reflect.Executable;
import java.lang.reflect.Parameter;
import java.util.stream.IntStream;
import org.jooby.internal.ParameterNameProvider;
public class RequestParamNameProviderImpl {
private ParameterNameProvider nameProvider;
public RequestParamNameProviderImpl(final ParameterNameProvider nameProvider) {
this.nameProvider = nameProvider;
}
public String name(final Parameter parameter) {
String name = RequestParam.nameFor(parameter);
if (name != null) {
return name;
}
// asm
Executable exec = parameter.getDeclaringExecutable();
Parameter[] params = exec.getParameters();
int idx = IntStream.range(0, params.length)
.filter(i -> params[i].equals(parameter))
.findFirst()
.getAsInt();
String[] names = nameProvider.names(exec);
return names[idx];
}
}