DumpByteArrayOutputStream.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it). 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package org.openspcoop2.utils.io;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.openspcoop2.utils.date.DateManager;
import org.openspcoop2.utils.date.DateUtils;
import org.openspcoop2.utils.resources.FileSystemUtilities;
import org.openspcoop2.utils.resources.Loader;

/**
* DumpByteArrayOutputStream
*
* @author Andrea Poli (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
*/
public class DumpByteArrayOutputStream extends OutputStream {

    private static String classImpl = DumpByteArrayOutputStream_FastImpl.class.getName();
    public static String getClassImpl() {
        return classImpl;
    }
    public static void setClassImpl(String classImpl) {
        DumpByteArrayOutputStream.classImpl = classImpl;
    }

    private OutputStream impl;
    private IDumpByteArrayOutputStream iImpl;
    
    public DumpByteArrayOutputStream() {
        // non e' attivo alcun controllo di soglia
        try {   
            Loader l = new Loader();
            this.impl = (OutputStream) l.newInstance_declaredConstructor(classImpl);
            this.iImpl = (IDumpByteArrayOutputStream) this.impl;
        }
        catch(Exception e) {
            throw new RuntimeException(e.getMessage(), e);
        }
    }
    public DumpByteArrayOutputStream(int soglia, File repositoryFile, String idTransazione, String tipoMessaggio) {
        try {
            Loader l = new Loader();
            Integer s = soglia;
            if(s>0) {
                if(repositoryFile==null) {
                    throw new Exception("RepositoryFile undefined");
                }
                this.impl = (OutputStream) l.newInstance_declaredConstructor(classImpl, s, repositoryFile, 
                        idTransazione!=null ? idTransazione : getUniqueSerial(), 
                        tipoMessaggio!=null ? tipoMessaggio : "dump");
            }
            else {
                // non e' attivo alcun controllo di soglia
                this.impl = (OutputStream) l.newInstance_declaredConstructor(classImpl);
            }
            this.iImpl = (IDumpByteArrayOutputStream) this.impl;
        }
        catch(Exception e) {
            throw new RuntimeException(e.getMessage(), e);
        }
    }

    public static DumpByteArrayOutputStream newInstance(byte[] content) {
        DumpByteArrayOutputStream out = null;
        if(content!=null && content.length>0) {
            out = new DumpByteArrayOutputStream();
            if(content!=null && content.length>0) {
                try {
                    out.write(content);
                }catch(Exception e) {
                    throw new RuntimeException(e.getMessage(), e);
                }
            }
        }
        return out;
    }
    
    private static long uniqueSerialNumber = 0;
    private static synchronized long getUniqueSerialNumber(){
        if((uniqueSerialNumber+1) > Long.MAX_VALUE){
            uniqueSerialNumber = 0;
        } 
        uniqueSerialNumber++;
        return uniqueSerialNumber;
    }
    private static final String SIMPLE_DATE_FORMAT_MINUTE = "yyyyMMddHHmm";
    private static String getUniqueSerial() {
        return getUniqueSerialNumber()+""+DateUtils.getSimpleDateFormat(SIMPLE_DATE_FORMAT_MINUTE).format(DateManager.getDate());
    }
    
    private static final String formatDir = "yyyyMMdd"; // compatibile con windows S.O.
    private static final String formatNew = "yyyyMMdd_HHmmssSSS"; // compatibile con windows S.O.
    private static final String prefix = "dump";
    protected static File newFile(File repositoryFile, String tipoMessaggio, String idTransazione) throws Exception {
        Date d = DateManager.getDate();
        SimpleDateFormat dateformatDir = DateUtils.getDefaultDateTimeFormatter(formatDir);
        String dateFormatDir = dateformatDir.format(d);
        File fData = new File(repositoryFile, dateFormatDir);           
        
        SimpleDateFormat dateformat = DateUtils.getDefaultDateTimeFormatter(formatNew);
        String dateFormat = dateformat.format(d);
        String nomeFile = prefix+tipoMessaggio+"_"+dateFormat+"_"+idTransazione.replaceAll("-", "_")+".bin";
        File f = new File(fData, nomeFile);
        FileSystemUtilities.mkdirParentDirectory(f);
        return f;
    }
    
    
    public boolean isSerializedOnFileSystem() {
        return this.iImpl.isSerializedOnFileSystem();
    }
    public File getSerializedFile() {
        return this.iImpl.getSerializedFile();
    }

    public void lock() {
        this.iImpl.lock();
    }
    public void unlock() {
        this.iImpl.unlock();
    }
    
    @Override
    public void write(int b) throws IOException {
        this.iImpl.writeInBuffer(b);
    }

    @Override
    public void write(byte[] b, int off, int len) throws IOException {
        this.iImpl.writeInBuffer(b, off, len);
    }

    @Override
    public void write(byte[] b) throws IOException {
        this.iImpl.writeInBuffer(b);
    }

    
    public void reset() {
        this.iImpl.reset();
    }
    public void clearResources() {
        this.iImpl.clearResources();
    }

    
    public int size() {
        return this.iImpl.size();
    }
    
    
    
    public void writeTo(OutputStream out) throws IOException {
        this.iImpl.writeTo(out);
    }

    public byte[] toByteArray() {
        return this.iImpl.serializeToByteArray();
    }

    @Override
    public String toString() {
        return this.iImpl.toString();
    }

    public String toString(String charsetName) throws UnsupportedEncodingException {
        return this.iImpl.serializeToString(charsetName);
    }

    public String toString(Charset charset) throws UnsupportedEncodingException {
        return this.iImpl.serializeToString(charset);
    }


    @Override
    public void close() throws IOException {
        this.iImpl.close();
    }


    @Override
    public void flush() throws IOException {
        this.iImpl.flush();
    }
    
    public InputStream getInputStream() {
        return this.iImpl.getInputStream();
    }
}