com.dianping.lion.api.http.RollbackConfigsServlet.java Source code

Introduction

Here is the source code for com.dianping.lion.api.http.RollbackConfigsServlet.java

Source

/**
 * Project: com.dianping.lion.lion-api-0.0.1
 *
 * File Created at 2012-8-1
 * $Id$
 *
 * Copyright 2010 dianping.com.
 * All rights reserved.
 *
 * This software is the confidential and proprietary information of
 * Dianping Company. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with dianping.com.
 */
package com.dianping.lion.api.http;

import java.util.Set;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.lang.StringUtils;

import com.dianping.lion.entity.ConfigSnapshotSet;
import com.dianping.lion.entity.Environment;
import com.dianping.lion.entity.OperationLog;
import com.dianping.lion.entity.OperationTypeEnum;
import com.dianping.lion.entity.Project;
import com.dianping.lion.service.ConfigRollbackResult;
import com.dianping.lion.util.ThrowableUtils;

/**
 * TODO Comment of RollbackConfigsServlet
 * @author danson.liu
 *
 */
public class RollbackConfigsServlet extends AbstractLionServlet {

    private static final long serialVersionUID = -7249785353868729405L;

    @Override
    protected void doService(HttpServletRequest req, HttpServletResponse resp, String querystr) throws Exception {
        String projectName = getNotBlankParameter(req, PARAM_PROJECT);
        String env = getNotBlankParameter(req, PARAM_ENV);
        String task = getNotBlankParameter(req, PARAM_TASK);
        String[] keys = req.getParameterValues(PARAM_KEY);

        Environment environment = getRequiredEnv(env);
        Project project = projectService.findProject(projectName);

        boolean hasRollbacked = false;
        String keysNotRemoved = "";

        if (project != null) {
            String logcontent = "task: " + task;
            try {
                ConfigSnapshotSet snapshotSet = configReleaseService.findSnapshotSetToRollback(project.getId(),
                        environment.getId(), task);

                if (snapshotSet != null) {
                    ConfigRollbackResult rollbackResult = configReleaseService.rollbackSnapshotSet(snapshotSet,
                            keys);
                    Set<String> notRemovedKeys = rollbackResult.getNotRemovedKeys();
                    if (CollectionUtils.isNotEmpty(notRemovedKeys)) {
                        keysNotRemoved = StringUtils.join(notRemovedKeys, ",") + " not removed.";
                    }
                    hasRollbacked = true;
                    operationLogService
                            .createOpLog(
                                    new OperationLog(OperationTypeEnum.API_Rollback, project.getId(),
                                            environment.getId(),
                                            "?: " + logcontent
                                                    + (!notRemovedKeys.isEmpty() ? ", key: "
                                                            + StringUtils.join(notRemovedKeys, ",") : "")).key(null,
                                                                    "true", null, null, querystr));
                } else {
                    operationLogService
                            .createOpLog(new OperationLog(OperationTypeEnum.API_Rollback, project.getId(),
                                    environment.getId(), "?: " + logcontent + ", ??")
                                            .key(null, "true", null, null, querystr));
                }
            } catch (Exception e) {
                operationLogService.createOpLog(new OperationLog(OperationTypeEnum.API_Rollback, project.getId(),
                        environment.getId(), ": " + logcontent).key(null, "false", null, null, querystr,
                                ThrowableUtils.extractStackTrace(e, 30000)));
                throw e;
            }
        }
        resp.getWriter().print(SUCCESS_CODE + (hasRollbacked ? "1|" + keysNotRemoved : "0"));
    }

}