Java tutorial
/* * * * 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. * */ /* * 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.wipro.ats.bdre.tdimport; import com.wipro.ats.bdre.MDConfig; import com.wipro.ats.bdre.exception.BDREException; import com.wipro.ats.bdre.md.api.GetProcess; import com.wipro.ats.bdre.md.api.GetProperties; import com.wipro.ats.bdre.md.beans.ProcessInfo; import com.wipro.ats.bdre.md.dao.ProcessDAO; import org.apache.commons.exec.CommandLine; import org.apache.commons.exec.DefaultExecutor; import org.apache.hadoop.conf.Configuration; import org.apache.log4j.Logger; import org.springframework.beans.factory.annotation.Autowired; import java.io.IOException; import java.text.SimpleDateFormat; /** * Created by MO335755 on 12/23/2015. */ public class QueuedFileUploader { @Autowired static ProcessDAO processDAO; private static final Logger LOGGER = Logger.getLogger(QueuedFileUploader.class); private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); private static Configuration config = new Configuration(); private QueuedFileUploader() { } private static void importFile(FileCopyInfo fileCopying) throws IOException { try { String sCommandString; String subProcessId = fileCopying.getSubProcessId(); GetProcess getProcess = new GetProcess(); String params[] = { "-p", subProcessId }; ProcessInfo processInfo = getProcess.getParentInfoFromSubProcess(params); String monDirName = new GetProperties().getProperties(subProcessId, "td-load") .getProperty("monitored-dir-name"); String targetDirPath = "tdload/" + processInfo.getBusDomainId() + "/" + processInfo.getProcessTypeId() + "/" + processInfo.getProcessId(); String absoluteFilePath = "tdload/" + processInfo.getBusDomainId() + "/" + processInfo.getProcessTypeId() + "/" + processInfo.getProcessId() + "/" + fileCopying.getFileName(); String command = "sh " + MDConfig.getProperty("execute.script-path") + "/file-loader-remote.sh" + " " + absoluteFilePath + " " + fileCopying.getTdDB() + " " + fileCopying.getTdTable() + " " + fileCopying.getTdUserName() + " " + fileCopying.getTdPassword() + " " + fileCopying.getTdTpdid() + " " + fileCopying.getTdDelimiter() + " " + targetDirPath + " " + monDirName + " " + fileCopying.getFileName(); sCommandString = command; CommandLine oCmdLine = CommandLine.parse(sCommandString); LOGGER.debug("executing command :" + command); DefaultExecutor oDefaultExecutor = new DefaultExecutor(); //oDefaultExecutor.setExitValue(0); oDefaultExecutor.execute(oCmdLine); } catch (Exception e) { FileMonitor.addToQueue(fileCopying.getFileName(), fileCopying); LOGGER.error("Error in importing file into TD. Requeuing file " + fileCopying.getFileName(), e); throw new IOException(e); } } public static void executeImportScript() { // this variable is used to keep details of file being currently copying if (FileMonitor.getQueueSize() > 0) { FileCopyInfo fileCopying = FileMonitor.getFileInfoFromQueue(); try { importFile(fileCopying); } catch (Exception err) { LOGGER.error("Error in execute copy process ", err); throw new BDREException(err); } } } }