nosi.core.webapp.helpers.JarUnJarFile Maven / Gradle / Ivy
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IGRP Framework is a powerful and highly customizable platform developed by the Operational Nucleus for the Information Society (NOSi) to create web applications, it provides out of box, several modules to make easy to create stand-alone, production-grade web applications: authentication and access-control, business processes automation, reporting, page builder with automatic code generation and incorporation of the Once-Only-Principle, written in Java. IGRP Framework WAR - Contains some keys resources that give UI to IGRP Framework and others supports files.
/**
* @author: Emanuel Pereira
*
* June 06, 2017
*
* Description: save files in jar format and read extract on far format
*/
package nosi.core.webapp.helpers;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;
import java.util.jar.JarEntry;
import java.util.jar.JarInputStream;
import java.util.jar.JarOutputStream;
import java.util.zip.Adler32;
import java.util.zip.CheckedInputStream;
import java.util.zip.CheckedOutputStream;
import jakarta.servlet.http.Part;
import nosi.core.webapp.import_export.FileImportAppOrPage;
public class JarUnJarFile {
public static byte[] convertFilesToJarBytes(Mapfiles,int level){
byte[] result = null;
if(!files.isEmpty() && (level >= 0 && level <= 9))
try{
ByteArrayOutputStream fos = new ByteArrayOutputStream();
CheckedOutputStream cos = new CheckedOutputStream(fos, new Adler32());
JarOutputStream jos = new JarOutputStream(new BufferedOutputStream(cos));
Set> entry = files.entrySet();
for(Entry e:entry){
JarEntry je = new JarEntry(e.getKey());
jos.putNextEntry(je);
InputStream fis = FileHelper.convertStringToInputStream(e.getValue());
for(int r=fis.read();r!=-1;r=fis.read()){
jos.write(r);
}
fis.close();
}
jos.close();
result = fos.toByteArray();
fos.close();
}catch(IOException e){
e.printStackTrace();
}
return result;
}
//save data to jar format
public static boolean saveJarFiles(String jarName,Mapfiles,int level){
boolean result = false;
jarName = jarName.endsWith(".jar")?jarName:(jarName+".jar");
if(!files.isEmpty() && (level >= 0 && level <= 9))
try{
FileOutputStream fos = new FileOutputStream(jarName);
CheckedOutputStream cos = new CheckedOutputStream(fos, new Adler32());
JarOutputStream jos = new JarOutputStream(new BufferedOutputStream(cos));
Set> entry = files.entrySet();
for(Entry e:entry){
JarEntry je = new JarEntry(e.getKey());
jos.putNextEntry(je);
FileInputStream fis = new FileInputStream(e.getValue());
for(int r=fis.read();r!=-1;r=fis.read()){
jos.write(r);
}
fis.close();
}
jos.close();
result = true;
}catch(IOException e){
result = false;
e.printStackTrace();
}
return result;
}
public static Map readJarFile(Part file){
Map files = new LinkedHashMap<>();
try{
CheckedInputStream cis = new CheckedInputStream(file.getInputStream(), new Adler32());
JarInputStream jis = new JarInputStream(new BufferedInputStream(cis));
JarEntry entry = null;
while((entry=jis.getNextJarEntry())!=null){
String ls = System.lineSeparator();
String line = null;
DataInputStream in = new DataInputStream(jis);
StringBuilder content = new StringBuilder();
BufferedReader d = new BufferedReader(new InputStreamReader(in, StandardCharsets.UTF_8));
while((line=d.readLine())!=null){
content.append(line);
content.append(ls);
}
files.put(entry.getName(), content.toString());
jis.closeEntry();
}
jis.close();
}catch(IOException e){
e.printStackTrace();
}
return files;
}
//Extract files jar format
public static List getJarFiles(Part file){
List contents = null;
try{
contents = new ArrayList<>();
CheckedInputStream cis = new CheckedInputStream(file.getInputStream(), new Adler32());
JarInputStream jis = new JarInputStream(new BufferedInputStream(cis));
JarEntry entry = null;
while((entry=jis.getNextJarEntry())!=null){
String ls = System.lineSeparator();
String line = null;
DataInputStream in = new DataInputStream(jis);
StringBuilder content = new StringBuilder();
BufferedReader d = new BufferedReader(new InputStreamReader(in,StandardCharsets.UTF_8));
while((line=d.readLine())!=null){
content.append(line);
content.append(ls);
}
int order = 4;
if(entry.getName().startsWith("configApp")){
order = 0;
}
if(entry.getName().startsWith("configDBApp")){
order = 1;
}
if(entry.getName().startsWith("configHibernate")){
order = 2;
}
if(entry.getName().startsWith("configPage")){
order = 3;
}
FileImportAppOrPage f = new FileImportAppOrPage(entry.getName(), content.toString(), order);
contents.add(f);
jis.closeEntry();
}
jis.close();
}catch(IOException e){
e.printStackTrace();
}
Collections.sort(contents);
return contents;
}
public static void copyStream(OutputStream outputStream, InputStream inputStream) throws IOException {
byte[] bytes = new byte[4096];
int read = inputStream.read(bytes, 0, 4096);
while (read > 0) {
outputStream.write(bytes, 0, read);
read = inputStream.read(bytes, 0, 4096);
}
}
}