net.eusashead.hateoas.response.impl.OptionsResponseBuilderImpl.java Source code

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Here is the source code for net.eusashead.hateoas.response.impl.OptionsResponseBuilderImpl.java

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package net.eusashead.hateoas.response.impl;

/*
 * #[license]
 * spring-responseentitybuilder
 * %%
 * Copyright (C) 2013 Eusa's Head
 * %%
 * 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.
 * %[license]
 */

import javax.servlet.http.HttpServletRequest;

import net.eusashead.hateoas.header.impl.AllowHeaderImpl;
import net.eusashead.hateoas.response.OptionsResponseBuilder;

import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;

public class OptionsResponseBuilderImpl<T> extends AbstractEntityResponseBuilder<T, T>
        implements OptionsResponseBuilder<T> {

    public OptionsResponseBuilderImpl(HttpServletRequest request) {
        super(request);
    }

    @Override
    protected void assertVerb() {
        if (!this.request.getMethod().equals("OPTIONS")) {
            throw new RuntimeException("This ResponseBuilder handles OPTIONS requests only.");
        }
    };

    @Override
    public OptionsResponseBuilder<T> entity(T entity) {
        super.setEntity(entity);
        return this;
    }

    @Override
    public OptionsResponseBuilder<T> allow(HttpMethod... methods) {
        this.headers.setAllow(new AllowHeaderImpl(methods).getValue());
        return this;
    }

    @Override
    public ResponseEntity<T> build() {
        ResponseEntity<T> responseEntity;
        if (entity == null) {
            responseEntity = new ResponseEntity<T>(headers, HttpStatus.OK);
        } else {
            responseEntity = new ResponseEntity<T>(entity, headers, HttpStatus.OK);
        }
        return responseEntity;
    }

}