/*
* Copyright 2012 LinkedIn Corp.
*
* 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 azkaban.webapp.servlet;
import azkaban.Constants;
import azkaban.executor.ConnectorParams;
import azkaban.executor.ExecutableFlow;
import azkaban.executor.ExecutableFlowBase;
import azkaban.executor.ExecutableNode;
import azkaban.executor.ExecutionOptions;
import azkaban.executor.ExecutionOptions.FailureAction;
import azkaban.executor.Executor;
import azkaban.executor.ExecutorManagerAdapter;
import azkaban.executor.ExecutorManagerException;
import azkaban.executor.Status;
import azkaban.flow.Flow;
import azkaban.project.Project;
import azkaban.project.ProjectManager;
import azkaban.scheduler.Schedule;
import azkaban.scheduler.ScheduleManager;
import azkaban.scheduler.ScheduleManagerException;
import azkaban.server.HttpRequestUtils;
import azkaban.server.session.Session;
import azkaban.user.Permission;
import azkaban.user.Permission.Type;
import azkaban.user.User;
import azkaban.user.UserManager;
import azkaban.utils.ExternalLinkUtils;
import azkaban.utils.FileIOUtils.LogData;
import azkaban.utils.FlowUtils;
import azkaban.utils.Pair;
import azkaban.utils.Props;
import azkaban.webapp.AzkabanWebServer;
import azkaban.webapp.plugin.PluginRegistry;
import azkaban.webapp.plugin.ViewerPlugin;
import azkaban.webapp.WebMetrics;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang.StringEscapeUtils;
import org.apache.log4j.Logger;
public class ExecutorServlet extends LoginAbstractAzkabanServlet {
private static final Logger LOGGER =
Logger.getLogger(ExecutorServlet.class.getName());
private static final long serialVersionUID = 1L;
private ProjectManager projectManager;
private ExecutorManagerAdapter executorManager;
private ScheduleManager scheduleManager;
private ExecutorVelocityHelper velocityHelper;
private UserManager userManager;
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
AzkabanWebServer server = (AzkabanWebServer) getApplication();
userManager = server.getUserManager();
projectManager = server.getProjectManager();
executorManager = server.getExecutorManager();
scheduleManager = server.getScheduleManager();
velocityHelper = new ExecutorVelocityHelper();
}
@Override
protected void handleGet(HttpServletRequest req, HttpServletResponse resp,
Session session) throws ServletException, IOException {
if (hasParam(req, "ajax")) {
handleAJAXAction(req, resp, session);
} else if (hasParam(req, "execid")) {
if (hasParam(req, "job")) {
handleExecutionJobDetailsPage(req, resp, session);
} else {
handleExecutionFlowPage(req, resp, session);
}
} else {
handleExecutionsPage(req, resp, session);
}
}
private void handleAJAXAction(HttpServletRequest req,
HttpServletResponse resp, Session session) throws ServletException,
IOException {
HashMap<String, Object> ret = new HashMap<String, Object>();
String ajaxName = getParam(req, "ajax");
if (hasParam(req, "execid")) {
int execid = getIntParam(req, "execid");
ExecutableFlow exFlow = null;
try {
exFlow = executorManager.getExecutableFlow(execid);
} catch (ExecutorManagerException e) {
ret.put("error",
"Error fetching execution '" + execid + "': " + e.getMessage());
}
if (exFlow == null) {
ret.put("error", "Cannot find execution '" + execid + "'");
} else {
if (ajaxName.equals("fetchexecflow")) {
ajaxFetchExecutableFlow(req, resp, ret, session.getUser(), exFlow);
} else if (ajaxName.equals("fetchexecflowupdate")) {
ajaxFetchExecutableFlowUpdate(req, resp, ret, session.getUser(),
exFlow);
} else if (ajaxName.equals("cancelFlow")) {
ajaxCancelFlow(req, resp, ret, session.getUser(), exFlow);
} else if (ajaxName.equals("pauseFlow")) {
ajaxPauseFlow(req, resp, ret, session.getUser(), exFlow);
} else if (ajaxName.equals("resumeFlow")) {
ajaxResumeFlow(req, resp, ret, session.getUser(), exFlow);
} else if (ajaxName.equals("fetchExecFlowLogs")) {
ajaxFetchExecFlowLogs(req, resp, ret, session.getUser(), exFlow);
} else if (ajaxName.equals("fetchExecJobLogs")) {
ajaxFetchJobLogs(req, resp, ret, session.getUser(), exFlow);
} else if (ajaxName.equals("fetchExecJobStats")) {
ajaxFetchJobStats(req, resp, ret, session.getUser(), exFlow);
} else if (ajaxName.equals("retryFailedJobs")) {
ajaxRestartFailed(req, resp, ret, session.getUser(), exFlow);
} else if (ajaxName.equals("flowInfo")) {
ajaxFetchExecutableFlowInfo(req, resp, ret, session.getUser(), exFlow);
}
}
} else if (ajaxName.equals("fetchscheduledflowgraph")) {
String projectName = getParam(req, "project");
String flowName = getParam(req, "flow");
ajaxFetchScheduledFlowGraph(projectName, flowName, ret, session.getUser());
} else if (ajaxName.equals("reloadExecutors")) {
ajaxReloadExecutors(req, resp, ret, session.getUser());
} else if (ajaxName.equals("enableQueueProcessor")) {
ajaxUpdateQueueProcessor(req, resp, ret, session.getUser(), true);
} else if (ajaxName.equals("disableQueueProcessor")) {
ajaxUpdateQueueProcessor(req, resp, ret, session.getUser(), false);
} else if (ajaxName.equals("getRunning")) {
String projectName = getParam(req, "project");
String flowName = getParam(req, "flow");
ajaxGetFlowRunning(req, resp, ret, session.getUser(), projectName,
flowName);
} else if (ajaxName.equals("flowInfo")) {
String projectName = getParam(req, "project");
String flowName = getParam(req, "flow");
ajaxFetchFlowInfo(req, resp, ret, session.getUser(), projectName,
flowName);
} else {
String projectName = getParam(req, "project");
ret.put("project", projectName);
if (ajaxName.equals("executeFlow")) {
ajaxAttemptExecuteFlow(req, resp, ret, session.getUser());
}
}
if (ret != null) {
this.writeJSON(resp, ret);
}
}
/**
* <pre>
* Enables queueProcessor if @param status is true
* disables queueProcessor if @param status is false.
* </pre>
*/
private void ajaxUpdateQueueProcessor(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> returnMap, User user,
boolean enableQueue) {
boolean wasSuccess = false;
if (HttpRequestUtils.hasPermission(userManager, user, Type.ADMIN)) {
try {
if (enableQueue) {
executorManager.enableQueueProcessorThread();
} else {
executorManager.disableQueueProcessorThread();
}
returnMap.put(ConnectorParams.STATUS_PARAM,
ConnectorParams.RESPONSE_SUCCESS);
wasSuccess = true;
} catch (ExecutorManagerException e) {
returnMap.put(ConnectorParams.RESPONSE_ERROR, e.getMessage());
}
} else {
returnMap.put(ConnectorParams.RESPONSE_ERROR,
"Only Admins are allowed to update queue processor");
}
if (!wasSuccess) {
returnMap.put(ConnectorParams.STATUS_PARAM,
ConnectorParams.RESPONSE_ERROR);
}
}
private void ajaxFetchScheduledFlowGraph(String projectName, String flowName,
HashMap<String, Object> ret, User user) throws ServletException {
Project project =
getProjectAjaxByPermission(ret, projectName, user, Type.EXECUTE);
if (project == null) {
ret.put("error", "Project '" + projectName + "' doesn't exist.");
return;
}
try {
Schedule schedule = scheduleManager.getSchedule(project.getId(), flowName);
ExecutionOptions executionOptions = schedule != null ? schedule.getExecutionOptions() : new ExecutionOptions();
Flow flow = project.getFlow(flowName);
if (flow == null) {
ret.put("error", "Flow '" + flowName + "' cannot be found in project " + project);
return;
}
ExecutableFlow exFlow = new ExecutableFlow(project, flow);
exFlow.setExecutionOptions(executionOptions);
ret.put("submitTime", exFlow.getSubmitTime());
ret.put("submitUser", exFlow.getSubmitUser());
ret.put("execid", exFlow.getExecutionId());
ret.put("projectId", exFlow.getProjectId());
ret.put("project", project.getName());
FlowUtils.applyDisabledJobs(executionOptions.getDisabledJobs(), exFlow);
Map<String, Object> flowObj = getExecutableNodeInfo(exFlow);
ret.putAll(flowObj);
} catch(ScheduleManagerException ex) {
throw new ServletException(ex);
}
}
/* Reloads executors from DB and azkaban.properties via executorManager */
private void ajaxReloadExecutors(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> returnMap, User user) {
boolean wasSuccess = false;
if (HttpRequestUtils.hasPermission(userManager, user, Type.ADMIN)) {
try {
executorManager.setupExecutors();
returnMap.put(ConnectorParams.STATUS_PARAM,
ConnectorParams.RESPONSE_SUCCESS);
wasSuccess = true;
} catch (ExecutorManagerException e) {
returnMap.put(ConnectorParams.RESPONSE_ERROR,
"Failed to refresh the executors " + e.getMessage());
}
} else {
returnMap.put(ConnectorParams.RESPONSE_ERROR,
"Only Admins are allowed to refresh the executors");
}
if (!wasSuccess) {
returnMap.put(ConnectorParams.STATUS_PARAM,
ConnectorParams.RESPONSE_ERROR);
}
}
@Override
protected void handlePost(HttpServletRequest req, HttpServletResponse resp,
Session session) throws ServletException, IOException {
if (hasParam(req, "ajax")) {
handleAJAXAction(req, resp, session);
}
}
private void handleExecutionJobDetailsPage(HttpServletRequest req,
HttpServletResponse resp, Session session) throws ServletException,
IOException {
Page page =
newPage(req, resp, session,
"azkaban/webapp/servlet/velocity/jobdetailspage.vm");
User user = session.getUser();
int execId = getIntParam(req, "execid");
String jobId = getParam(req, "job");
int attempt = getIntParam(req, "attempt", 0);
page.add("execid", execId);
page.add("jobid", jobId);
page.add("attempt", attempt);
ExecutableFlow flow = null;
ExecutableNode node = null;
try {
flow = executorManager.getExecutableFlow(execId);
if (flow == null) {
page.add("errorMsg", "Error loading executing flow " + execId
+ ": not found.");
page.render();
return;
}
node = flow.getExecutableNodePath(jobId);
if (node == null) {
page.add("errorMsg",
"Job " + jobId + " doesn't exist in " + flow.getExecutionId());
return;
}
List<ViewerPlugin> jobViewerPlugins =
PluginRegistry.getRegistry().getViewerPluginsForJobType(
node.getType());
page.add("jobViewerPlugins", jobViewerPlugins);
} catch (ExecutorManagerException e) {
page.add("errorMsg", "Error loading executing flow: " + e.getMessage());
page.render();
return;
}
int projectId = flow.getProjectId();
Project project =
getProjectPageByPermission(page, projectId, user, Type.READ);
if (project == null) {
page.render();
return;
}
page.add("projectName", project.getName());
page.add("flowid", flow.getId());
page.add("parentflowid", node.getParentFlow().getFlowId());
page.add("jobname", node.getId());
page.render();
}
private void handleExecutionsPage(HttpServletRequest req,
HttpServletResponse resp, Session session) throws ServletException,
IOException {
Page page =
newPage(req, resp, session,
"azkaban/webapp/servlet/velocity/executionspage.vm");
List<Pair<ExecutableFlow, Executor>> runningFlows =
executorManager.getActiveFlowsWithExecutor();
page.add("runningFlows", runningFlows.isEmpty() ? null : runningFlows);
List<ExecutableFlow> finishedFlows =
executorManager.getRecentlyFinishedFlows();
page.add("recentlyFinished", finishedFlows.isEmpty() ? null : finishedFlows);
page.add("vmutils", velocityHelper);
page.render();
}
private void handleExecutionFlowPage(HttpServletRequest req,
HttpServletResponse resp, Session session) throws ServletException,
IOException {
Page page =
newPage(req, resp, session,
"azkaban/webapp/servlet/velocity/executingflowpage.vm");
User user = session.getUser();
int execId = getIntParam(req, "execid");
page.add("execid", execId);
ExecutableFlow flow = null;
try {
flow = executorManager.getExecutableFlow(execId);
if (flow == null) {
page.add("errorMsg", "Error loading executing flow " + execId
+ " not found.");
page.render();
return;
}
} catch (ExecutorManagerException e) {
page.add("errorMsg", "Error loading executing flow: " + e.getMessage());
page.render();
return;
}
int projectId = flow.getProjectId();
Project project =
getProjectPageByPermission(page, projectId, user, Type.READ);
if (project == null) {
page.render();
return;
}
Props props = getApplication().getServerProps();
String execExternalLinkURL = ExternalLinkUtils.getExternalAnalyzerOnReq(props, req);
if(execExternalLinkURL.length() > 0) {
page.add("executionExternalLinkURL", execExternalLinkURL);
LOGGER.debug("Added an External analyzer to the page");
LOGGER.debug("External analyzer url: " + execExternalLinkURL);
String execExternalLinkLabel =
props.getString(Constants.ConfigurationKeys.AZKABAN_SERVER_EXTERNAL_ANALYZER_LABEL,
"External Analyzer");
page.add("executionExternalLinkLabel", execExternalLinkLabel);
LOGGER.debug("External analyzer label set to : " + execExternalLinkLabel);
}
page.add("projectId", project.getId());
page.add("projectName", project.getName());
page.add("flowid", flow.getFlowId());
page.render();
}
protected Project getProjectPageByPermission(Page page, int projectId,
User user, Permission.Type type) {
Project project = projectManager.getProject(projectId);
if (project == null) {
page.add("errorMsg", "Project " + project + " not found.");
} else if (!hasPermission(project, user, type)) {
page.add("errorMsg",
"User " + user.getUserId() + " doesn't have " + type.name()
+ " permissions on " + project.getName());
} else {
return project;
}
return null;
}
protected Project getProjectAjaxByPermission(Map<String, Object> ret,
String projectName, User user, Permission.Type type) {
Project project = projectManager.getProject(projectName);
if (project == null) {
ret.put("error", "Project '" + project + "' not found.");
} else if (!hasPermission(project, user, type)) {
ret.put("error",
"User '" + user.getUserId() + "' doesn't have " + type.name()
+ " permissions on " + project.getName());
} else {
return project;
}
return null;
}
protected Project getProjectAjaxByPermission(Map<String, Object> ret,
int projectId, User user, Permission.Type type) {
Project project = projectManager.getProject(projectId);
if (project == null) {
ret.put("error", "Project '" + project + "' not found.");
} else if (!hasPermission(project, user, type)) {
ret.put("error",
"User '" + user.getUserId() + "' doesn't have " + type.name()
+ " permissions on " + project.getName());
} else {
return project;
}
return null;
}
private void ajaxRestartFailed(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> ret, User user,
ExecutableFlow exFlow) throws ServletException {
Project project =
getProjectAjaxByPermission(ret, exFlow.getProjectId(), user,
Type.EXECUTE);
if (project == null) {
return;
}
if (exFlow.getStatus() == Status.FAILED
|| exFlow.getStatus() == Status.SUCCEEDED) {
ret.put("error", "Flow has already finished. Please re-execute.");
return;
}
try {
executorManager.retryFailures(exFlow, user.getUserId());
} catch (ExecutorManagerException e) {
ret.put("error", e.getMessage());
}
}
/**
* Gets the logs through plain text stream to reduce memory overhead.
*
* @param req
* @param resp
* @param user
* @param exFlow
* @throws ServletException
*/
private void ajaxFetchExecFlowLogs(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> ret, User user,
ExecutableFlow exFlow) throws ServletException {
long startMs = System.currentTimeMillis();
Project project =
getProjectAjaxByPermission(ret, exFlow.getProjectId(), user, Type.READ);
if (project == null) {
return;
}
int offset = this.getIntParam(req, "offset");
int length = this.getIntParam(req, "length");
resp.setCharacterEncoding("utf-8");
try {
LogData data =
executorManager.getExecutableFlowLog(exFlow, offset, length);
if (data == null) {
ret.put("length", 0);
ret.put("offset", offset);
ret.put("data", "");
} else {
ret.put("length", data.getLength());
ret.put("offset", data.getOffset());
ret.put("data", StringEscapeUtils.escapeHtml(data.getData()));
}
} catch (ExecutorManagerException e) {
throw new ServletException(e);
}
/*
* We originally consider leverage Drop Wizard's Timer API {@link com.codahale.metrics.Timer}
* to measure the duration time.
* However, Timer will result in too many accompanying metrics (e.g., min, max, 99th quantile)
* regarding one metrics. We decided to use gauge to do that and monitor how it behaves.
*/
WebMetrics.INSTANCE.setFetchLogLatency(System.currentTimeMillis() - startMs);
}
/**
* Gets the logs through ajax plain text stream to reduce memory overhead.
*
* @param req
* @param resp
* @param user
* @param exFlow
* @throws ServletException
*/
private void ajaxFetchJobLogs(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> ret, User user,
ExecutableFlow exFlow) throws ServletException {
Project project =
getProjectAjaxByPermission(ret, exFlow.getProjectId(), user, Type.READ);
if (project == null) {
return;
}
int offset = this.getIntParam(req, "offset");
int length = this.getIntParam(req, "length");
String jobId = this.getParam(req, "jobId");
resp.setCharacterEncoding("utf-8");
try {
ExecutableNode node = exFlow.getExecutableNodePath(jobId);
if (node == null) {
ret.put("error",
"Job " + jobId + " doesn't exist in " + exFlow.getExecutionId());
return;
}
int attempt = this.getIntParam(req, "attempt", node.getAttempt());
LogData data =
executorManager.getExecutionJobLog(exFlow, jobId, offset, length,
attempt);
if (data == null) {
ret.put("length", 0);
ret.put("offset", offset);
ret.put("data", "");
} else {
ret.put("length", data.getLength());
ret.put("offset", data.getOffset());
ret.put("data", StringEscapeUtils.escapeHtml(data.getData()));
}
} catch (ExecutorManagerException e) {
throw new ServletException(e);
}
}
private void ajaxFetchJobStats(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> ret, User user,
ExecutableFlow exFlow) throws ServletException {
Project project =
getProjectAjaxByPermission(ret, exFlow.getProjectId(), user, Type.READ);
if (project == null) {
return;
}
String jobId = this.getParam(req, "jobid");
resp.setCharacterEncoding("utf-8");
try {
ExecutableNode node = exFlow.getExecutableNodePath(jobId);
if (node == null) {
ret.put("error",
"Job " + jobId + " doesn't exist in " + exFlow.getExecutionId());
return;
}
List<Object> jsonObj =
executorManager
.getExecutionJobStats(exFlow, jobId, node.getAttempt());
ret.put("jobStats", jsonObj);
} catch (ExecutorManagerException e) {
ret.put("error", "Error retrieving stats for job " + jobId);
return;
}
}
private void ajaxFetchFlowInfo(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> ret, User user,
String projectName, String flowId) throws ServletException {
Project project =
getProjectAjaxByPermission(ret, projectName, user, Type.READ);
if (project == null) {
return;
}
Flow flow = project.getFlow(flowId);
if (flow == null) {
ret.put("error", "Error loading flow. Flow " + flowId
+ " doesn't exist in " + projectName);
return;
}
ret.put("successEmails", flow.getSuccessEmails());
ret.put("failureEmails", flow.getFailureEmails());
Schedule sflow = null;
try {
for (Schedule sched : scheduleManager.getSchedules()) {
if (sched.getProjectId() == project.getId()
&& sched.getFlowName().equals(flowId)) {
sflow = sched;
break;
}
}
} catch (ScheduleManagerException e) {
// TODO Auto-generated catch block
throw new ServletException(e);
}
if (sflow != null) {
ret.put("scheduled", sflow.getNextExecTime());
}
}
private void ajaxFetchExecutableFlowInfo(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> ret, User user,
ExecutableFlow exflow) throws ServletException {
Project project =
getProjectAjaxByPermission(ret, exflow.getProjectId(), user, Type.READ);
if (project == null) {
return;
}
Flow flow = project.getFlow(exflow.getFlowId());
if (flow == null) {
ret.put("error", "Error loading flow. Flow " + exflow.getFlowId()
+ " doesn't exist in " + exflow.getProjectId());
return;
}
ExecutionOptions options = exflow.getExecutionOptions();
ret.put("successEmails", options.getSuccessEmails());
ret.put("failureEmails", options.getFailureEmails());
ret.put("flowParam", options.getFlowParameters());
FailureAction action = options.getFailureAction();
String failureAction = null;
switch (action) {
case FINISH_CURRENTLY_RUNNING:
failureAction = "finishCurrent";
break;
case CANCEL_ALL:
failureAction = "cancelImmediately";
break;
case FINISH_ALL_POSSIBLE:
failureAction = "finishPossible";
break;
}
ret.put("failureAction", failureAction);
ret.put("notifyFailureFirst", options.getNotifyOnFirstFailure());
ret.put("notifyFailureLast", options.getNotifyOnLastFailure());
ret.put("failureEmailsOverride", options.isFailureEmailsOverridden());
ret.put("successEmailsOverride", options.isSuccessEmailsOverridden());
ret.put("concurrentOptions", options.getConcurrentOption());
ret.put("pipelineLevel", options.getPipelineLevel());
ret.put("pipelineExecution", options.getPipelineExecutionId());
ret.put("queueLevel", options.getQueueLevel());
HashMap<String, String> nodeStatus = new HashMap<String, String>();
for (ExecutableNode node : exflow.getExecutableNodes()) {
nodeStatus.put(node.getId(), node.getStatus().toString());
}
ret.put("nodeStatus", nodeStatus);
ret.put("disabled", options.getDisabledJobs());
}
private void ajaxCancelFlow(HttpServletRequest req, HttpServletResponse resp,
HashMap<String, Object> ret, User user, ExecutableFlow exFlow)
throws ServletException {
Project project =
getProjectAjaxByPermission(ret, exFlow.getProjectId(), user,
Type.EXECUTE);
if (project == null) {
return;
}
try {
executorManager.cancelFlow(exFlow, user.getUserId());
} catch (ExecutorManagerException e) {
ret.put("error", e.getMessage());
}
}
private void ajaxGetFlowRunning(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> ret, User user,
String projectId, String flowId) throws ServletException {
Project project =
getProjectAjaxByPermission(ret, projectId, user, Type.EXECUTE);
if (project == null) {
return;
}
List<Integer> refs =
executorManager.getRunningFlows(project.getId(), flowId);
if (!refs.isEmpty()) {
ret.put("execIds", refs);
}
}
private void ajaxPauseFlow(HttpServletRequest req, HttpServletResponse resp,
HashMap<String, Object> ret, User user, ExecutableFlow exFlow)
throws ServletException {
Project project =
getProjectAjaxByPermission(ret, exFlow.getProjectId(), user,
Type.EXECUTE);
if (project == null) {
return;
}
try {
executorManager.pauseFlow(exFlow, user.getUserId());
} catch (ExecutorManagerException e) {
ret.put("error", e.getMessage());
}
}
private void ajaxResumeFlow(HttpServletRequest req, HttpServletResponse resp,
HashMap<String, Object> ret, User user, ExecutableFlow exFlow)
throws ServletException {
Project project =
getProjectAjaxByPermission(ret, exFlow.getProjectId(), user,
Type.EXECUTE);
if (project == null) {
return;
}
try {
executorManager.resumeFlow(exFlow, user.getUserId());
} catch (ExecutorManagerException e) {
ret.put("resume", e.getMessage());
}
}
private Map<String, Object> getExecutableFlowUpdateInfo(ExecutableNode node,
long lastUpdateTime) {
HashMap<String, Object> nodeObj = new HashMap<String, Object>();
if (node instanceof ExecutableFlowBase) {
ExecutableFlowBase base = (ExecutableFlowBase) node;
ArrayList<Map<String, Object>> nodeList =
new ArrayList<Map<String, Object>>();
for (ExecutableNode subNode : base.getExecutableNodes()) {
Map<String, Object> subNodeObj =
getExecutableFlowUpdateInfo(subNode, lastUpdateTime);
if (!subNodeObj.isEmpty()) {
nodeList.add(subNodeObj);
}
}
if (!nodeList.isEmpty()) {
nodeObj.put("flow", base.getFlowId());
nodeObj.put("nodes", nodeList);
}
}
if (node.getUpdateTime() > lastUpdateTime || !nodeObj.isEmpty()) {
nodeObj.put("id", node.getId());
nodeObj.put("status", node.getStatus());
nodeObj.put("startTime", node.getStartTime());
nodeObj.put("endTime", node.getEndTime());
nodeObj.put("updateTime", node.getUpdateTime());
nodeObj.put("attempt", node.getAttempt());
if (node.getAttempt() > 0) {
nodeObj.put("pastAttempts", node.getAttemptObjects());
}
}
return nodeObj;
}
private Map<String, Object> getExecutableNodeInfo(ExecutableNode node) {
HashMap<String, Object> nodeObj = new HashMap<String, Object>();
nodeObj.put("id", node.getId());
nodeObj.put("status", node.getStatus());
nodeObj.put("startTime", node.getStartTime());
nodeObj.put("endTime", node.getEndTime());
nodeObj.put("updateTime", node.getUpdateTime());
nodeObj.put("type", node.getType());
nodeObj.put("nestedId", node.getNestedId());
nodeObj.put("attempt", node.getAttempt());
if (node.getAttempt() > 0) {
nodeObj.put("pastAttempts", node.getAttemptObjects());
}
if (node.getInNodes() != null && !node.getInNodes().isEmpty()) {
nodeObj.put("in", node.getInNodes());
}
if (node instanceof ExecutableFlowBase) {
ExecutableFlowBase base = (ExecutableFlowBase) node;
ArrayList<Map<String, Object>> nodeList =
new ArrayList<Map<String, Object>>();
for (ExecutableNode subNode : base.getExecutableNodes()) {
Map<String, Object> subNodeObj = getExecutableNodeInfo(subNode);
if (!subNodeObj.isEmpty()) {
nodeList.add(subNodeObj);
}
}
nodeObj.put("flow", base.getFlowId());
nodeObj.put("nodes", nodeList);
nodeObj.put("flowId", base.getFlowId());
}
return nodeObj;
}
private void ajaxFetchExecutableFlowUpdate(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> ret, User user,
ExecutableFlow exFlow) throws ServletException {
Long lastUpdateTime = Long.parseLong(getParam(req, "lastUpdateTime"));
System.out.println("Fetching " + exFlow.getExecutionId());
Project project =
getProjectAjaxByPermission(ret, exFlow.getProjectId(), user, Type.READ);
if (project == null) {
return;
}
Map<String, Object> map =
getExecutableFlowUpdateInfo(exFlow, lastUpdateTime);
map.put("status", exFlow.getStatus());
map.put("startTime", exFlow.getStartTime());
map.put("endTime", exFlow.getEndTime());
map.put("updateTime", exFlow.getUpdateTime());
ret.putAll(map);
}
private void ajaxFetchExecutableFlow(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> ret, User user,
ExecutableFlow exFlow) throws ServletException {
System.out.println("Fetching " + exFlow.getExecutionId());
Project project =
getProjectAjaxByPermission(ret, exFlow.getProjectId(), user, Type.READ);
if (project == null) {
return;
}
ret.put("submitTime", exFlow.getSubmitTime());
ret.put("submitUser", exFlow.getSubmitUser());
ret.put("execid", exFlow.getExecutionId());
ret.put("projectId", exFlow.getProjectId());
ret.put("project", project.getName());
Map<String, Object> flowObj = getExecutableNodeInfo(exFlow);
ret.putAll(flowObj);
}
private void ajaxAttemptExecuteFlow(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> ret, User user)
throws ServletException {
String projectName = getParam(req, "project");
String flowId = getParam(req, "flow");
Project project =
getProjectAjaxByPermission(ret, projectName, user, Type.EXECUTE);
if (project == null) {
ret.put("error", "Project '" + projectName + "' doesn't exist.");
return;
}
ret.put("flow", flowId);
Flow flow = project.getFlow(flowId);
if (flow == null) {
ret.put("error", "Flow '" + flowId + "' cannot be found in project "
+ project);
return;
}
ajaxExecuteFlow(req, resp, ret, user);
}
private void ajaxExecuteFlow(HttpServletRequest req,
HttpServletResponse resp, HashMap<String, Object> ret, User user)
throws ServletException {
String projectName = getParam(req, "project");
String flowId = getParam(req, "flow");
Project project =
getProjectAjaxByPermission(ret, projectName, user, Type.EXECUTE);
if (project == null) {
ret.put("error", "Project '" + projectName + "' doesn't exist.");
return;
}
ret.put("flow", flowId);
Flow flow = project.getFlow(flowId);
if (flow == null) {
ret.put("error", "Flow '" + flowId + "' cannot be found in project "
+ project);
return;
}
ExecutableFlow exflow = new ExecutableFlow(project, flow);
exflow.setSubmitUser(user.getUserId());
exflow.addAllProxyUsers(project.getProxyUsers());
ExecutionOptions options = HttpRequestUtils.parseFlowOptions(req);
exflow.setExecutionOptions(options);
if (!options.isFailureEmailsOverridden()) {
options.setFailureEmails(flow.getFailureEmails());
}
if (!options.isSuccessEmailsOverridden()) {
options.setSuccessEmails(flow.getSuccessEmails());
}
options.setMailCreator(flow.getMailCreator());
try {
HttpRequestUtils.filterAdminOnlyFlowParams(userManager, options, user);
String message =
executorManager.submitExecutableFlow(exflow, user.getUserId());
ret.put("message", message);
} catch (Exception e) {
e.printStackTrace();
ret.put("error",
"Error submitting flow " + exflow.getFlowId() + ". " + e.getMessage());
}
ret.put("execid", exflow.getExecutionId());
}
public class ExecutorVelocityHelper {
public String getProjectName(int id) {
Project project = projectManager.getProject(id);
if (project == null) {
return String.valueOf(id);
}
return project.getName();
}
}
}