/*
* Copyright 2008-2009 LinkedIn, Inc
*
* 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 voldemort.server.http.gui;
import java.io.IOException;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import voldemort.client.ClientConfig;
import voldemort.client.HttpStoreClientFactory;
import voldemort.client.StoreClient;
import voldemort.client.StoreClientFactory;
import com.google.common.collect.Maps;
/**
* Add client for queries, do data parsing
*
* Note that this is still work-in-progress, see:
*
* http://code.google.com/p/project-voldemort/issues/detail?id=61
*
*
*/
@SuppressWarnings("all")
public class QueryServlet extends HttpServlet {
private static final long serialVersionUID = 1;
private VelocityEngine engine;
private StoreClientFactory clientFactory;
public QueryServlet() {}
public QueryServlet(VelocityEngine engine, URI bootstrap) {
this.engine = engine;
this.clientFactory = new HttpStoreClientFactory(new ClientConfig().setBootstrapUrls(bootstrap.toString())
.setMaxThreads(1));
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException,
IOException {
super.doGet(req, resp);
Map<String, Object> m = Maps.newHashMap();
engine.render("query.vm", m, resp.getOutputStream());
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
super.doPost(req, resp);
String storeName = req.getParameter("store");
String key = req.getParameter("key");
String keyType = req.getParameter("key_type");
String value = req.getParameter("value");
String action = req.getParameter("action");
Object keyObj = parseKey(keyType, key);
Map<String, Object> params = new HashMap<String, Object>();
StoreClient<?, ?> client = clientFactory.getStoreClient(storeName);
engine.render("query.vm", params, resp.getOutputStream());
}
@Override
public void init() throws ServletException {
super.init();
// this.getServletContext().getAttribute("velocity");
}
private Object parseKey(String keyType, String key) {
if("int8".equals(keyType))
return Byte.valueOf(key);
else if("int16".equals(keyType))
return Short.valueOf(key);
else if("int32".equals(keyType))
return Integer.valueOf(key);
else if("int64".equals(keyType))
return Long.valueOf(key);
else if("string".equals(keyType))
return key;
else
throw new IllegalArgumentException("Unsupported key type: " + keyType);
}
}