/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 Lesser General Public License for more details.
*
* Copyright (c) 2006 - 2013 Pentaho Corporation and Contributors. All rights reserved.
*/
package org.pentaho.reporting.libraries.repository.zip;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;
import java.util.zip.Deflater;
import java.util.zip.InflaterInputStream;
import java.util.zip.ZipEntry;
import org.pentaho.reporting.libraries.repository.ContentIOException;
import org.pentaho.reporting.libraries.repository.ContentItem;
import org.pentaho.reporting.libraries.repository.ContentLocation;
import org.pentaho.reporting.libraries.repository.LibRepositoryBoot;
import org.pentaho.reporting.libraries.repository.Repository;
import org.pentaho.reporting.libraries.repository.RepositoryUtilities;
import org.pentaho.reporting.libraries.base.util.IOUtils;
public class ZipContentItem implements ContentItem
{
private static final byte[] EMPTY_BYTES = new byte[0];
private String comment;
private String name;
private long size;
private long time;
private ZipRepository repository;
private byte[] rawData;
private ZipContentLocation parent;
private String entryName;
private Integer method;
private int compression;
private long crc32;
public ZipContentItem(final ZipRepository repository,
final ZipContentLocation parent,
final ZipEntry zipEntry,
final byte[] bytes)
{
if (repository == null)
{
throw new NullPointerException();
}
if (zipEntry == null)
{
throw new NullPointerException();
}
if (bytes == null)
{
throw new NullPointerException();
}
if (parent == null)
{
throw new NullPointerException();
}
this.parent = parent;
this.repository = repository;
this.comment = zipEntry.getComment();
this.name = RepositoryUtilities.buildName(this, "/");
this.entryName = IOUtils.getInstance().getFileName(name);
this.size = zipEntry.getSize();
this.crc32 = zipEntry.getCrc();
this.time = zipEntry.getTime();
this.rawData = bytes;
final int method = zipEntry.getMethod();
if (method == ZipEntry.STORED || method == ZipEntry.DEFLATED)
{
this.method = new Integer(method);
}
else
{
this.method = new Integer(ZipEntry.DEFLATED);
}
this.compression = Deflater.DEFAULT_COMPRESSION;
}
public ZipContentItem(final ZipRepository repository, final ZipContentLocation parent, final String name)
{
if (repository == null)
{
throw new NullPointerException();
}
if (parent == null)
{
throw new NullPointerException();
}
if (name == null)
{
throw new NullPointerException();
}
this.repository = repository;
this.parent = parent;
this.entryName = name;
this.name = RepositoryUtilities.buildName(this, "/");
this.time = System.currentTimeMillis();
this.comment = null;
this.size = 0;
this.rawData = EMPTY_BYTES;
this.method = LibRepositoryBoot.ZIP_METHOD_DEFLATED;
this.compression = Deflater.DEFAULT_COMPRESSION;
}
/**
* This method is a internal method. The raw-data array must be a valid Deflater-output or the content-item will
* not be able to read the data.
*
* @param rawData
* @param size
* @param crc32
*/
public void setRawData(final byte[] rawData, long size, long crc32)
{
if (rawData == null)
{
throw new NullPointerException();
}
this.rawData = rawData;
this.size = size;
this.crc32 = crc32;
this.time = System.currentTimeMillis();
}
public String getMimeType() throws ContentIOException
{
return repository.getMimeRegistry().getMimeType(this);
}
public OutputStream getOutputStream() throws ContentIOException, IOException
{
return new ZipEntryOutputStream(this);
}
public InputStream getInputStream() throws ContentIOException, IOException
{
return new InflaterInputStream(new ByteArrayInputStream(rawData));
}
public boolean isReadable()
{
return true;
}
public boolean isWriteable()
{
return true;
}
public String getName()
{
return entryName;
}
public Object getContentId()
{
return name;
}
public Object getAttribute(String domain, String key)
{
if (LibRepositoryBoot.REPOSITORY_DOMAIN.equals(domain))
{
if (LibRepositoryBoot.SIZE_ATTRIBUTE.equals(key))
{
return new Long(size);
}
else if (LibRepositoryBoot.VERSION_ATTRIBUTE.equals(key))
{
return new Date(time);
}
}
else if (LibRepositoryBoot.ZIP_DOMAIN.equals(domain))
{
if (LibRepositoryBoot.ZIP_COMMENT_ATTRIBUTE.equals(key))
{
return comment;
}
if (LibRepositoryBoot.ZIP_CRC32_ATTRIBUTE.equals(key))
{
return new Long(crc32);
}
else if (LibRepositoryBoot.ZIP_METHOD_ATTRIBUTE.equals(key))
{
return method;
}
else if (LibRepositoryBoot.ZIP_COMPRESSION_ATTRIBUTE.equals(key))
{
return new Integer(compression);
}
}
return null;
}
public boolean setAttribute(String domain, String key, Object value)
{
if (LibRepositoryBoot.REPOSITORY_DOMAIN.equals(domain))
{
if (LibRepositoryBoot.VERSION_ATTRIBUTE.equals(key))
{
if (value instanceof Date)
{
final Date n = (Date) value;
time = n.getTime();
return true;
}
else if (value instanceof Number)
{
final Number n = (Number) value;
time = n.longValue();
return true;
}
}
}
else if (LibRepositoryBoot.ZIP_DOMAIN.equals(domain))
{
if (LibRepositoryBoot.ZIP_COMMENT_ATTRIBUTE.equals(key))
{
if (value != null)
{
comment = String.valueOf(value);
return true;
}
else
{
comment = null;
return true;
}
}
if (LibRepositoryBoot.ZIP_METHOD_ATTRIBUTE.equals(key))
{
if (LibRepositoryBoot.ZIP_METHOD_STORED.equals(value))
{
method = LibRepositoryBoot.ZIP_METHOD_STORED;
return true;
}
else if (LibRepositoryBoot.ZIP_METHOD_DEFLATED.equals(value))
{
method = LibRepositoryBoot.ZIP_METHOD_DEFLATED;
return true;
}
}
if (LibRepositoryBoot.ZIP_COMPRESSION_ATTRIBUTE.equals(key))
{
if (value instanceof Integer)
{
final Integer valueInt = (Integer) value;
final int compression = valueInt.intValue();
if (compression >= 0 && compression <= 9)
{
this.compression = compression;
return true;
}
}
}
}
return false;
}
public ContentLocation getParent()
{
return parent;
}
public Repository getRepository()
{
return repository;
}
public boolean delete()
{
return parent.removeEntity(this);
}
}