| // Copyright (C) 2012 The Android Open Source Project |
| // |
| // 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 com.google.gerrit.httpd.rpc.change; |
| |
| import com.google.gerrit.httpd.RestApiServlet; |
| import com.google.gerrit.server.CurrentUser; |
| import com.google.gerrit.server.OutputFormat; |
| import com.google.gerrit.server.query.QueryParseException; |
| import com.google.gerrit.server.query.change.ListChanges; |
| import com.google.gwtorm.server.OrmException; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| import com.google.inject.Singleton; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.BufferedWriter; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStreamWriter; |
| import java.io.Writer; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| @Singleton |
| public class ListChangesServlet extends RestApiServlet { |
| private static final long serialVersionUID = 1L; |
| private static final Logger log = LoggerFactory.getLogger(ListChangesServlet.class); |
| private final ParameterParser paramParser; |
| private final Provider<ListChanges> factory; |
| |
| @Inject |
| ListChangesServlet(final Provider<CurrentUser> currentUser, |
| ParameterParser paramParser, Provider<ListChanges> ls) { |
| super(currentUser); |
| this.paramParser = paramParser; |
| this.factory = ls; |
| } |
| |
| @Override |
| protected void doGet(HttpServletRequest req, HttpServletResponse res) |
| throws IOException { |
| ListChanges impl = factory.get(); |
| if (acceptsJson(req)) { |
| impl.setFormat(OutputFormat.JSON_COMPACT); |
| } |
| if (paramParser.parse(impl, req, res)) { |
| ByteArrayOutputStream buf = new ByteArrayOutputStream(); |
| if (impl.getFormat().isJson()) { |
| buf.write(JSON_MAGIC); |
| } |
| |
| Writer out = new BufferedWriter(new OutputStreamWriter(buf, "UTF-8")); |
| try { |
| impl.query(out); |
| } catch (QueryParseException e) { |
| res.setStatus(HttpServletResponse.SC_BAD_REQUEST); |
| sendText(req, res, e.getMessage()); |
| return; |
| } catch (OrmException e) { |
| log.error("Error querying /changes/", e); |
| res.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); |
| return; |
| } |
| out.flush(); |
| |
| res.setContentType(impl.getFormat().isJson() ? JSON_TYPE : "text/plain"); |
| res.setCharacterEncoding("UTF-8"); |
| send(req, res, buf.toByteArray()); |
| } |
| } |
| } |