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CharlesResource.java
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/
CharlesResource.java
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/*
Copyright (c) 2016, Mihai Emil Andronache
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of charles-rest nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.amihaiemil.charles.rest;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.PathParam;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import com.amihaiemil.charles.aws.AmazonEsSearch;
import com.amihaiemil.charles.rest.model.EsQuery;
import com.amihaiemil.charles.rest.model.SearchResultsPage;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
/**
* REST interface for charles' logic.
* @author Mihai Andronache (amihaiemil@gmail.com)
* @version $Id$
* @since 1.0.0
*/
@Path("/")
public class CharlesResource {
/**
* Http request.
*/
@Context
private HttpServletRequest servletRequest;
/**
* Endpoint for checking if the service is online.
* @return ok response.
*/
@GET
@Path("/ping")
public Response ping() {
return Response.ok().entity("Service is online.").build();
}
/**
* Perform a search.
* @return Http response.
* @param user Github username.
* @param repo Github reponame.
* @throws JsonProcessingException
*/
@GET
@Path("/s/{username}/{reponame}")
@Produces(MediaType.APPLICATION_JSON)
public Response search(
@PathParam("username") String user,
@PathParam("reponame") String repo,
@QueryParam("kw") @DefaultValue("") String keywords,
@QueryParam("ctg") @DefaultValue("page") String category,
@QueryParam("index") @DefaultValue("0") String index,
@QueryParam("size") @DefaultValue("10") String size
) throws JsonProcessingException {
int idx = Integer.valueOf(index);
int nr = Integer.valueOf(size);
EsQuery query = new EsQuery(keywords, category, Integer.valueOf(index), Integer.valueOf(size));
String indexName = user.toLowerCase() + "x" + repo.toLowerCase();
AmazonEsSearch aws = new AmazonEsSearch(query, indexName);
SearchResultsPage results = aws.search();
String queryStringFormat = "?kw=%s&ctg=%s&index=%s&size=%s";
String requestUrl = servletRequest.getRequestURL().toString();
if(idx == 0) {
results.setPreviousPage("-");
} else {
String queryString = String.format(queryStringFormat, keywords, category, idx - nr, nr);
results.setPreviousPage(requestUrl + queryString);
}
if(idx + nr >= results.getTotalHits()) {
results.setNextPage("-");
} else {
String queryString = String.format(queryStringFormat, keywords, category, idx + nr, nr);
results.setNextPage(requestUrl + queryString);
}
results.setPageNr(idx/nr + 1);
int start = 0;
List<String> pagesLinks = new ArrayList<String>();
while(start < nr) {
pagesLinks.add(
requestUrl + String.format(queryStringFormat, keywords, category, start, nr)
);
start += nr;
}
return Response.ok().entity(new ObjectMapper().writeValueAsString(results)).build();
}
}