Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package no.uio.medicine.virsurveillance.parsers; import java.io.BufferedReader; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.sql.SQLException; import java.util.Enumeration; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; import no.uio.medicine.virsurveillance.DDBB.SQLManagement; import org.apache.commons.csv.CSVFormat; import org.apache.commons.csv.CSVParser; import org.apache.commons.csv.CSVRecord; /** * * @author apla */ public class CSVsGBDdata { private SQLManagement sqlM; public CSVsGBDdata(SQLManagement sqlM) { this.sqlM = sqlM; } public SQLManagement getSqlM() { return sqlM; } public void setSqlM(SQLManagement sqlM) { this.sqlM = sqlM; } public void parse(String deathFolder) throws IOException { File f = new File(deathFolder); Runtime runtime = Runtime.getRuntime(); if (f.isDirectory()) { String[] filesInDir = f.list(); for (String fil : filesInDir) { if (fil.endsWith(".zip")) { ZipFile zipFile = new ZipFile(deathFolder + "/" + fil); Enumeration<? extends ZipEntry> entries = zipFile.entries(); while (entries.hasMoreElements()) { System.out.println( "Used memory: " + (runtime.totalMemory() - runtime.freeMemory()) / (1024 * 1024) + " Free memory: " + (runtime.freeMemory()) / (1024 * 1024)); ZipEntry entry = entries.nextElement(); InputStream stream = zipFile.getInputStream(entry); BufferedReader br = new BufferedReader(new InputStreamReader(stream, "UTF-8")); CSVParser parser = CSVFormat.RFC4180.withDelimiter(',').withIgnoreEmptyLines().withHeader() .parse(br); List<CSVRecord> records = parser.getRecords(); System.out.println("Reading records: " + zipFile.getName() + "/" + entry); /*for (int i=0;i<records.size();i++) { CSVRecord csvRecord = records.get(i);*/ for (CSVRecord csvRecord : records) { if (csvRecord.isMapped("age_group_id")) { //age group 22 corresponds to all ages if (csvRecord.get("age_group_id").equalsIgnoreCase("22")) { String location = null; String year = null; String sex = null; String cause = null; String number = null; String metric = null; if (csvRecord.isMapped("location_code")) { location = csvRecord.get("location_code"); } if (csvRecord.isMapped("year")) { year = csvRecord.get("year"); } if (csvRecord.isMapped("sex_id")) { //1=male, 2 = female if (csvRecord.get("sex_id").equalsIgnoreCase(("1"))) { sex = "m"; } else if (csvRecord.get("sex_id").equalsIgnoreCase("2")) { sex = "f"; } } if (csvRecord.isMapped("cause_name")) { cause = csvRecord.get("cause_name"); } if (csvRecord.isMapped("mean")) { number = csvRecord.get("mean"); } if (csvRecord.isMapped("metric") && csvRecord.isMapped("unit")) { metric = csvRecord.get("metric") + "-" + csvRecord.get("unit"); } if (location != null && year != null && sex != null && cause != null && number != null && metric != null) { try { sqlM.addSanitaryIssueToCountry(location, year, sex, cause, metric, number); } catch (SQLException ex) { Logger.getLogger(CSVsGBDdata.class.getName()).log(Level.SEVERE, null, ex); } } } } } parser.close(); stream.close(); br.close(); } zipFile.close(); } } } else { System.out.println("Not a directory"); } } public void zip() throws IOException { ZipFile zipFile = new ZipFile("C:/test.zip"); Enumeration<? extends ZipEntry> entries = zipFile.entries(); while (entries.hasMoreElements()) { ZipEntry entry = entries.nextElement(); InputStream stream = zipFile.getInputStream(entry); } } }