/*
* Copyright (c) 2010 Lockheed Martin Corporation
*
* 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.eurekastreams.server.service.restlets;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.Date;
import java.util.List;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eurekastreams.server.persistence.JobMapper;
import org.restlet.data.MediaType;
import org.restlet.data.Request;
import org.restlet.resource.Representation;
import org.restlet.resource.ResourceException;
import org.restlet.resource.StringRepresentation;
import org.restlet.resource.Variant;
/**
* Resource to provide a list of job titles based on a specified prefix.
*/
public class TitlesCollectionResource extends SmpResource
{
/**
* Logger.
*/
private Log log = LogFactory.getLog(TitlesCollectionResource.class);
/**
* Key for the titles array in the JSON results.
*/
public static final String TITLES_KEY = "titles";
/**
* The title prefix to look for.
*/
private String prefix;
/**
* The maximum number of titles to return.
*/
public static final int MAX_TITLES = 10;
/**
* Mapper used to look up the titles.
*/
private JobMapper jobMapper;
/**
*
*/
public TitlesCollectionResource()
{
}
/**
* Get the prefix to search against.
*
* @param request
* the restlet request object
*/
@Override
protected void initParams(final Request request)
{
//Attempt to decode using W3C standard encoding, if failure,
//try to retrieve string and pass through without decoding.
try
{
prefix = URLDecoder.decode((String) request.getAttributes().get("query"), "UTF-8");
}
catch (UnsupportedEncodingException ex)
{
prefix = (String) request.getAttributes().get("query");
log.error("Unsupported encoding on input for: " + prefix);
}
}
/**
* Getter.
*
* @return the jobMapper
*/
public JobMapper getJobMapper()
{
return jobMapper;
}
/**
* Setter.
*
* @param inJobMapper
* the jobMapper to set
*/
public void setJobMapper(final JobMapper inJobMapper)
{
this.jobMapper = inJobMapper;
}
/**
* Handle GET request.
*
* @param variant
* for the available representations for the resource
* @throws ResourceException
* should not occur
* @return the JSON representation of this resource
*/
@Override
public Representation represent(final Variant variant) throws ResourceException
{
log.debug("Searching for job titles by prefix: " + prefix);
List<String> titles = jobMapper.findTitlesByPrefix(prefix, MAX_TITLES);
JSONArray jsonArray = new JSONArray();
if (null != titles)
{
for (String title : titles)
{
jsonArray.add(title);
}
}
JSONObject json = new JSONObject();
json.put(TITLES_KEY, jsonArray);
log.debug("Returning titles found: " + json.toString());
Representation rep = new StringRepresentation(json.toString(), MediaType.APPLICATION_JSON);
rep.setExpirationDate(new Date(0L));
return rep;
}
}