// Copyright (C) 2010 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.server.query.change.QueryProcessor;
import com.google.gerrit.server.query.change.QueryProcessor.OutputFormat;
import com.google.gson.Gson;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import java.io.IOException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Singleton
public class DeprecatedChangeQueryServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private final Provider<QueryProcessor> processor;
@Inject
DeprecatedChangeQueryServlet(Provider<QueryProcessor> processor) {
this.processor = processor;
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse rsp)
throws IOException {
rsp.setContentType("text/json");
rsp.setCharacterEncoding("UTF-8");
QueryProcessor p = processor.get();
OutputFormat format = OutputFormat.JSON;
try {
format = OutputFormat.valueOf(get(req, "format", format.toString()));
} catch (IllegalArgumentException err) {
error(rsp, "invalid format");
return;
}
switch (format) {
case JSON:
rsp.setContentType("text/json");
rsp.setCharacterEncoding("UTF-8");
break;
case TEXT:
rsp.setContentType("text/plain");
rsp.setCharacterEncoding("UTF-8");
break;
default:
error(rsp, "invalid format");
return;
}
p.setIncludeComments(get(req, "comments", false));
p.setIncludeCurrentPatchSet(get(req, "current-patch-set", false));
p.setIncludePatchSets(get(req, "patch-sets", false));
p.setIncludeApprovals(get(req, "all-approvals", false));
p.setOutput(rsp.getOutputStream(), format);
p.query(get(req, "q", "status:open"));
}
private static void error(HttpServletResponse rsp, String message)
throws IOException {
ErrorMessage em = new ErrorMessage();
em.message = message;
ServletOutputStream out = rsp.getOutputStream();
try {
out.write(new Gson().toJson(em).getBytes("UTF-8"));
out.write('\n');
out.flush();
} finally {
out.close();
}
}
private static String get(HttpServletRequest req, String name, String val) {
String v = req.getParameter(name);
if (v == null || v.isEmpty()) {
return val;
}
return v;
}
private static boolean get(HttpServletRequest req, String name, boolean val) {
String v = req.getParameter(name);
if (v == null || v.isEmpty()) {
return val;
}
return "true".equalsIgnoreCase(v);
}
public static class ErrorMessage {
public final String type = "error";
public String message;
}
}