Example usage for org.apache.commons.exec DefaultExecuteResultHandler onProcessComplete

Introduction

In this page you can find the example usage for org.apache.commons.exec DefaultExecuteResultHandler onProcessComplete.

Prototype

public void onProcessComplete(final int exitValue) 

Source Link

Usage

From source file:com.stratio.ingestion.IngestionInterpreter.java

@Override
public InterpreterResult interpret(String st) {

    if (ingestionHome.isEmpty()) {
        open();/*from  w  w  w .  ja  v  a2  s  .  c  o  m*/
        if (ingestionHome.isEmpty()) {
            return new InterpreterResult(InterpreterResult.Code.ERROR,
                    "%text Ingestion is not installed correctly. " + "INGESTION_HOME Is not set");
        }
    }

    IngestionSyntaxParser parser = new IngestionSyntaxParser();
    IngestionParserResult parserResult = null;
    try {
        parserResult = parser.parse(st);
    } catch (IngestionParserException e) {
        return new InterpreterResult(InterpreterResult.Code.ERROR, "%text " + e.getMessage());
    }

    StringBuilder shellCommand = new StringBuilder();
    StringBuilder interpreterResult = new StringBuilder();
    String bashResult;
    interpreterResult.append("%text ");

    switch (parserResult.getCommand()) {
    case AGENT_START:

        try {
            IngestionAgent agentStart = parserResult.getAgent();
            String agentName = agentStart.getName();
            String agentFilepath = agentStart.getFilepath();
            int agentPort = agentStart.getPort();

            logger.info("Ingestion interpreter @ agent start $INGESTION_HOME -> " + ingestionHome);
            logger.info("Ingestion interpreter @ agent start agent filepath -> " + agentFilepath);
            logger.info("Ingestion interpreter @ agent start agent name -> " + agentName);
            logger.info("Ingestion interpreter @ agent start agent port -> " + agentPort);

            shellCommand.append("exec \"").append(ingestionHome).append("/bin/flume-ng\" agent --conf ")
                    .append(ingestionHome).append("/conf --conf-file ").append(agentFilepath).append(" --name ")
                    .append(agentName).append(" -Dflume.monitoring.type=http -Dflume.monitoring.port=")
                    .append(String.valueOf(agentPort)).append("> /dev/null & ");

            logger.info("Ingestion interpreter @ agent start command -> " + shellCommand.toString());
            DefaultExecuteResultHandler handler = IngestionUtils.executeBash(shellCommand.toString());
            long initTime = System.currentTimeMillis();
            while (!handler.hasResult()) {
                if (System.currentTimeMillis() > (initTime + CMD_TIMEOUT)) {
                    handler.onProcessComplete(999);
                }
            }
            if (handler.getException() != null) {
                return new InterpreterResult(InterpreterResult.Code.ERROR,
                        "%text " + handler.getExitValue() + " " + handler.getException().getMessage());
            }
            bashResult = "Agent started";
            return new InterpreterResult(InterpreterResult.Code.SUCCESS, bashResult);
        } catch (IOException e) {
            return new InterpreterResult(InterpreterResult.Code.ERROR, "%text " + e.getMessage());
        }
    case AGENT_STOP:
        try {
            IngestionAgent agentStop = parserResult.getAgent();
            shellCommand.append("ps auxww | grep flume | grep ").append(agentStop.getPort())
                    .append("| awk '{ print $2 }' | xargs kill -15 ");
            IngestionUtils.executeBash(shellCommand.toString());
            return new InterpreterResult(InterpreterResult.Code.SUCCESS,
                    interpreterResult.append("Agent " + "apparently stopped ").toString());

        } catch (IOException e) {
            if (e.getMessage().contains("143")) { //after kill a process always 143 exit code
                return new InterpreterResult(InterpreterResult.Code.SUCCESS,
                        interpreterResult.append("Agent " + "apparently stopped ").toString());
            } else {
                return new InterpreterResult(InterpreterResult.Code.ERROR, "%text " + e.getMessage());
            }
        }
    case CHANNELS_STATUS:
        try {
            String json = IngestionUtils.getAgentStatus(parserResult.getAgent().getPort());
            if (json.length() > 3) {
                Map<String, String> channelsStatus = IngestionUtils.getChannelsStatus(json);
                String channelStatusResult = "";
                for (String channel : channelsStatus.keySet()) {
                    channelStatusResult += "Channel ".concat(channel).concat(": ")
                            .concat(channelsStatus.get(channel)).concat("\n");
                }
                return new InterpreterResult(InterpreterResult.Code.SUCCESS, "%text " + channelStatusResult);
            }
        } catch (IOException e) {
            return new InterpreterResult(InterpreterResult.Code.ERROR, "%text " + e.getMessage());
        }
        break;
    case LIST_PROPERTIES:
        List<String> files = new ArrayList<>();
        StringBuilder listResult = new StringBuilder();
        IngestionUtils.getIngestionPropertiesFiles(files, ingestionHome);
        if (!files.isEmpty()) {
            for (String file : files) {
                listResult.append(file).append("\n");
            }
            return new InterpreterResult(InterpreterResult.Code.SUCCESS,
                    "%text ".concat(listResult.toString()));
        }
        return new InterpreterResult(InterpreterResult.Code.ERROR, "%text No .properties files found");
    case HELP:
        return new InterpreterResult(InterpreterResult.Code.SUCCESS,
                interpreterResult.append(IngestionUtils.help()).toString());
    }

    return new InterpreterResult(InterpreterResult.Code.ERROR,
            "%text Ingestion command not recognized, type help" + " for more info");
}

---