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eFaps is a framework used to map objects with or without attached files to
a relational database and optional file systems (only for attaches files). Configurable access control can be provided down to object and attribute level depending on implementation and use case. Depending on requirements, events (like triggers) allow to implement business logic and to separate business logic from user interface.
The framework includes integrations (e.g. webdav, full text search) and a web application as 'simple' configurable user interface. Some best practises, example web application modules (e.g. team work module) support administrators and implementers using this framework.
/*
* Copyright 2003 - 2012 The eFaps Team
*
* 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.
*
* Revision: $Rev: 7483 $
* Last Changed: $Date: 2012-05-11 11:57:38 -0500 (Fri, 11 May 2012) $
* Last Changed By: $Author: [email protected] $
*/
package org.efaps.admin.program.bundle;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.zip.GZIPOutputStream;
import org.efaps.admin.AbstractAdminObject;
import org.efaps.db.Checkout;
import org.efaps.util.EFapsException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Makes a bundle of files and zipps them.
*
* @author The eFaps Team
* @version $Id: TempFileBundle.java 7483 2012-05-11 16:57:38Z [email protected] $
*/
public class TempFileBundle
implements BundleInterface
{
/**
* Logging instance used in this class.
*/
private static final Logger LOG = LoggerFactory.getLogger(AbstractAdminObject.class);
/**
* Temporary folder.
*/
private static File TMPFOLDER = new File("");
static {
try {
final File tmp = File.createTempFile("eFapsTemp", null).getParentFile();
TempFileBundle.TMPFOLDER = new File(tmp.getAbsolutePath() + "/eFapsTemp");
if (!TempFileBundle.TMPFOLDER.exists()) {
final boolean mkdir = TempFileBundle.TMPFOLDER.mkdir();
if (!mkdir) {
TempFileBundle.LOG.error("Temp folder was not created");
}
}
tmp.deleteOnExit();
} catch (final IOException e) {
TempFileBundle.LOG.error("Temp archive could not be created");
}
}
/**
* Filed.
*/
private File file = null;
/**
* zipped file.
*/
private File gzipFile = null;
/**
* Time in miliseconds when this file was created.
*/
private final long created;
/**
* TYpe of the content.
*/
private String contentType = "text/plain";
/**
* List of oids included in this bundle.
*/
private List oids;
/**
* Key to this bundle.
*/
private String key;
/**
* Constructor.
*/
public TempFileBundle()
{
this.created = System.currentTimeMillis();
}
/**
* {@inheritDoc}
*/
@Override
public synchronized InputStream getInputStream(final boolean _gziped)
throws EFapsException
{
InputStream ret = null;
try {
if (_gziped) {
if (this.gzipFile == null) {
this.gzipFile = setFile(true);
}
ret = new FileInputStream(this.gzipFile);
} else {
if (this.file == null) {
this.file = setFile(false);
}
ret = new FileInputStream(this.file);
}
} catch (final FileNotFoundException e) {
throw new EFapsException(this.getClass(), "getInputStream", e);
}
return ret;
}
/**
* {@inheritDoc}
*/
@Override
public long getCreationTime()
{
return this.created;
}
/**
* This is the getter method for the instance variable {@link #contentType}.
*
* @return value of instance variable {@link #contentType}
*/
@Override
public String getContentType()
{
return this.contentType;
}
/**
* This is the setter method for the instance variable {@link #contentType}.
*
* @param _contentType the contentType to set
*/
public void setContentType(final String _contentType)
{
this.contentType = _contentType;
}
/**
* This is the getter method for the instance variable {@link #oids}.
*
* @return value of instance variable {@link #oids}
*/
public List getOids()
{
return this.oids;
}
/**
* @param _gziped zip the file
* @return File
* @throws EFapsException on error
*/
private File setFile(final boolean _gziped)
throws EFapsException
{
final String filename = _gziped ? this.key + "GZIP" : this.key;
final File ret = new File(TempFileBundle.getTempFolder(), filename);
try {
final FileOutputStream out = new FileOutputStream(ret);
final byte[] buffer = new byte[1024];
int bytesRead;
if (_gziped) {
final GZIPOutputStream zout = new GZIPOutputStream(out);
for (final String oid : this.oids) {
final Checkout checkout = new Checkout(oid);
final InputStream bis = checkout.execute();
while ((bytesRead = bis.read(buffer)) != -1) {
zout.write(buffer, 0, bytesRead);
}
}
zout.close();
} else {
for (final String oid : this.oids) {
final Checkout checkout = new Checkout(oid);
final InputStream bis = checkout.execute();
while ((bytesRead = bis.read(buffer)) != -1) {
out.write(buffer, 0, bytesRead);
}
}
}
out.close();
} catch (final IOException e) {
throw new EFapsException(this.getClass(), "setFile", e, filename);
}
return ret;
}
/**
* @return the temporary folder
* @throws EFapsException on error
*/
public static File getTempFolder()
throws EFapsException
{
return TempFileBundle.TMPFOLDER;
}
/**
* {@inheritDoc}
*/
@Override
public void setKey(final String _key,
final List _oids)
{
this.key = _key;
this.oids = _oids;
}
}