org.apache.camel.component.linkedin.api.EnumQueryParamConverterProvider Maven / Gradle / Ivy
/**
* 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.camel.component.linkedin.api;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import javax.ws.rs.ext.ParamConverter;
import javax.ws.rs.ext.ParamConverterProvider;
import javax.ws.rs.ext.Provider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Converter provider for Enum Query params.
*/
@Provider
public class EnumQueryParamConverterProvider> implements ParamConverterProvider {
private static final Logger LOG = LoggerFactory.getLogger(EnumQueryParamConverterProvider.class);
@Override
public ParamConverter getConverter(Class rawType, Type genericType, Annotation[] annotations) {
if (rawType.isEnum()) {
try {
final Method valueMethod = rawType.getMethod("value", null);
final Method fromValueMethod = rawType.getMethod("fromValue", String.class);
return new ParamConverter() {
@Override
public T fromString(String value) {
try {
return (T) fromValueMethod.invoke(null, value);
} catch (IllegalAccessException e) {
throw new IllegalArgumentException(e);
} catch (InvocationTargetException e) {
throw new IllegalArgumentException(e);
}
}
@Override
public String toString(T value) {
try {
return (String) valueMethod.invoke(value);
} catch (IllegalAccessException e) {
throw new IllegalArgumentException(e);
} catch (InvocationTargetException e) {
throw new IllegalArgumentException(e);
}
}
};
} catch (NoSuchMethodException e) {
LOG.debug("Enumeration {} does not follow JAXB convention for conversion", rawType.getName());
}
}
return null;
}
}