org.moserp.environment.rest.ValueListController.java Source code

Introduction

Here is the source code for org.moserp.environment.rest.ValueListController.java

Source

/*******************************************************************************
 * Copyright 2013 Thomas Letsch (contact@thomas-letsch.de)
 *
 * 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.moserp.environment.rest;

import org.moserp.environment.domain.ValueList;
import org.moserp.environment.domain.ValueListItem;
import org.moserp.environment.repository.ValueListRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.hateoas.EntityLinks;
import org.springframework.hateoas.ExposesResourceFor;
import org.springframework.hateoas.Resource;
import org.springframework.hateoas.Resources;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;

@RestController
@ExposesResourceFor(ValueList.class)
public class ValueListController {

    @Autowired
    private ValueListRepository valueListRepository;

    @Autowired
    private EntityLinks entityLinks;

    @RequestMapping(method = RequestMethod.GET, value = "/valueLists/{key}/values")
    public Resources<Resource<ValueListItem>> getValuesForKey(@PathVariable String key) {
        ValueList valueList = valueListRepository.findByKey(key);
        if (valueList == null) {
            valueList = new ValueList(key);
            valueList = valueListRepository.save(valueList);
        }
        List<ValueListItem> values = valueList.getValues();

        Stream<Resource<ValueListItem>> resourceStream = values.stream().map(item -> new Resource<>(item));
        List<Resource<ValueListItem>> resources = resourceStream.collect(Collectors.toList());
        return new Resources<>(resources);
    }

    @RequestMapping(method = RequestMethod.POST, value = "/valueLists/{key}/values")
    public ResponseEntity<Void> addValueForKey(@PathVariable String key, ValueListItem item)
            throws URISyntaxException {
        ValueList valueList = valueListRepository.findByKey(key);
        if (valueList == null) {
            valueList = new ValueList(key);
            valueList = valueListRepository.save(valueList);
        }
        valueList.addValue(item);
        URI location = new URI(entityLinks.linkToSingleResource(valueList).getHref());
        return ResponseEntity.created(location).build();
    }

}