/*
* 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.util.Date;
import java.util.HashMap;
import java.util.zip.ZipEntry;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.reporting.libraries.repository.ContentCreationException;
import org.pentaho.reporting.libraries.repository.ContentEntity;
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 ZipContentLocation implements ContentLocation
{
private static final Log logger = LogFactory.getLog(ZipContentLocation.class);
private ZipRepository repository;
private ZipContentLocation parent;
private String comment;
private String name;
private long size;
private long time;
private String entryName;
private HashMap entries;
public ZipContentLocation(final ZipRepository repository,
final ZipContentLocation parent,
final String entryName)
{
if (repository == null)
{
throw new NullPointerException();
}
if (entryName == null)
{
throw new NullPointerException();
}
this.repository = repository;
this.parent = parent;
this.entryName = entryName;
this.entries = new HashMap();
this.name = RepositoryUtilities.buildName(this, "/") + '/';
this.time = System.currentTimeMillis();
}
public ZipContentLocation(ZipRepository repository, ZipContentLocation parent, ZipEntry zipEntry)
{
if (repository == null)
{
throw new NullPointerException();
}
if (parent == null)
{
throw new NullPointerException();
}
if (zipEntry == null)
{
throw new NullPointerException();
}
this.repository = repository;
this.parent = parent;
this.entryName = IOUtils.getInstance().getFileName(zipEntry.getName());
this.comment = zipEntry.getComment();
this.size = zipEntry.getSize();
this.time = zipEntry.getTime();
this.entries = new HashMap();
this.name = RepositoryUtilities.buildName(this, "/") + '/';
}
private void updateMetaData(final ZipEntry zipEntry)
{
this.comment = zipEntry.getComment();
this.size = zipEntry.getSize();
this.time = zipEntry.getTime();
}
public void updateDirectoryEntry(final String[] name, final int index, final ZipEntry zipEntry)
{
if (name == null)
{
throw new NullPointerException();
}
if (zipEntry == null)
{
throw new NullPointerException();
}
final String path = name[index];
final Object entry = entries.get(path);
if (entry instanceof ContentItem)
{
logger.warn("Directory-Entry with the same name as a Content-Entry encountered: " + path);
return;
}
final ZipContentLocation location;
if (entry == null)
{
location = new ZipContentLocation(repository, this, path);
entries.put(path, location);
}
else
{
location = (ZipContentLocation) entry;
}
final int nextNameIdx = index + 1;
if (nextNameIdx < name.length)
{
location.updateDirectoryEntry(name, nextNameIdx, zipEntry);
}
else if (nextNameIdx == name.length)
{
location.updateMetaData(zipEntry);
}
}
public void updateEntry(final String[] name,
final int index,
final ZipEntry zipEntry,
final byte[] data)
{
if (name == null)
{
throw new NullPointerException();
}
if (zipEntry == null)
{
throw new NullPointerException();
}
if (data == null)
{
throw new NullPointerException();
}
final String path = name[index];
final Object entry = entries.get(path);
final int nextNameIdx = index + 1;
if (nextNameIdx < name.length)
{
if (entry instanceof ContentItem)
{
logger.warn("Directory-Entry with the same name as a Content-Entry encountered: " + path);
return;
}
final ZipContentLocation location;
if (entry == null)
{
location = new ZipContentLocation(repository, this, path);
entries.put(path, location);
}
else
{
location = (ZipContentLocation) entry;
}
if (nextNameIdx < name.length)
{
location.updateEntry(name, nextNameIdx, zipEntry, data);
}
}
else if (nextNameIdx == name.length)
{
if (entry instanceof ContentItem)
{
logger.warn("Duplicate Content-Entry encountered: " + path);
return;
}
else if (entry != null)
{
logger.warn("Replacing Directory-Entry with the same name as a Content-Entry: " + path);
}
final ZipContentItem contentItem = new ZipContentItem(repository, this, zipEntry, data);
entries.put(path, contentItem);
}
}
public ContentEntity[] listContents() throws ContentIOException
{
return (ContentEntity[]) entries.values().toArray(new ContentEntity[entries.size()]);
}
public ContentEntity getEntry(final String name) throws ContentIOException
{
return (ContentEntity) entries.get(name);
}
public boolean exists(final String name)
{
return entries.containsKey(name);
}
public ContentItem createItem(final String name) throws ContentCreationException
{
if (entries.containsKey(name))
{
throw new ContentCreationException("An entry with name '" + name + "' already exists.");
}
if (name.indexOf('/') != -1)
{
throw new ContentCreationException("The entry-name '" + name + "' is invalid.");
}
if ("".equals(name) || ".".equals(name) || "..".equals(name))
{
throw new ContentCreationException("The entry-name '" + name + "' is invalid.");
}
final ZipContentItem value = new ZipContentItem(repository, this, name);
entries.put(name, value);
return value;
}
public ContentLocation createLocation(final String name) throws ContentCreationException
{
if (entries.containsKey(name))
{
throw new ContentCreationException("An entry with name '" + name + "' already exists.");
}
if (entries.containsKey(name))
{
throw new ContentCreationException("An entry with name '" + name + "' already exists.");
}
if (name.indexOf('/') != -1)
{
throw new ContentCreationException("The entry-name '" + name + "' is invalid.");
}
if ("".equals(name) || ".".equals(name) || "..".equals(name))
{
throw new ContentCreationException("The entry-name '" + name + "' is invalid.");
}
final ZipContentLocation value = new ZipContentLocation(repository, this, name);
entries.put(name, value);
return value;
}
public String getName()
{
return entryName;
}
public Object getContentId()
{
return name;
}
public Object getAttribute(final String domain, final 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;
}
}
return null;
}
public boolean setAttribute(final String domain, final String key, final 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;
}
}
}
return false;
}
public ContentLocation getParent()
{
return parent;
}
public Repository getRepository()
{
return repository;
}
public boolean delete()
{
if (parent == null)
{
return false;
}
return parent.removeEntity(this);
}
public boolean removeEntity(final ContentEntity entity)
{
return (entries.remove(entity.getName()) != null);
}
}