com.graphhopper.http.GHPointConverterProvider Maven / Gradle / Ivy

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/*
 *  Licensed to GraphHopper GmbH under one or more contributor
 *  license agreements. See the NOTICE file distributed with this work for
 *  additional information regarding copyright ownership.
 *
 *  GraphHopper GmbH 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 com.graphhopper.http;

import com.graphhopper.MultiException;
import com.graphhopper.util.shapes.GHPoint;

import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ParamConverter;
import javax.ws.rs.ext.ParamConverterProvider;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

public class GHPointConverterProvider implements ParamConverterProvider {

    @Override
    public  ParamConverter getConverter(Class rawType, Type genericType, Annotation[] annotations) {
        if (rawType.equals(GHPoint.class)) {
            return new ParamConverter() {
                @Override
                public T fromString(String value) {
                    try {
                        return (T) GHPoint.fromString(value);
                    } catch (IllegalArgumentException ex) {
                        throw new WebApplicationException(Response.status(Response.Status.BAD_REQUEST)
                                .entity(new MultiException(ex))
                                .build());
                    }
                }

                @Override
                public String toString(T value) {
                    return value.toString();
                }
            };
        }
        return null;
    }
}