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package com.orbekk.same.http;
import static com.orbekk.same.StackTraceUtil.throwableToString;
import java.io.IOException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.orbekk.same.Client;
import com.orbekk.same.UpdateConflict;
public class StateServlet extends HttpServlet {
private Logger logger = LoggerFactory.getLogger(getClass());
private Client.ClientInterface client;
public StateServlet(Client.ClientInterface client) {
this.client = client;
}
private void handleSetState(HttpServletRequest request,
HttpServletResponse response) throws IOException {
if (request.getParameter("key") == null ||
request.getParameter("value") == null) {
response.getWriter().println(
"Usage: action=set&key=DesiredKey&value=DesiredValue");
}
try {
client.set(request.getParameter("key"), request.getParameter("value"));
response.getWriter().println("Updated component: " +
request.getParameter("key") + "=" +
request.getParameter("value"));
} catch (UpdateConflict e) {
response.getWriter().println("Update conflict: " +
throwableToString(e));
}
}
@Override
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws IOException {
if ("set".equals(request.getParameter("action"))) {
handleSetState(request, response);
}
response.setContentType("text/plain; charset=utf8");
response.getWriter().println(client.getState());
response.setStatus(HttpServletResponse.SC_OK);
}
}
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