/*
* Autopsy Forensic Browser
*
* Copyright 2012-2014 Basis Technology Corp.
* Contact: carrier <at> sleuthkit <dot> org
*
* 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.
*/
package org.sleuthkit.autopsy.ingest;
import java.util.List;
import java.util.logging.Level;
import org.sleuthkit.autopsy.coreutils.Logger;
import org.sleuthkit.autopsy.casemodule.Case;
import org.sleuthkit.datamodel.Content;
import org.sleuthkit.datamodel.ContentVisitor;
import org.sleuthkit.datamodel.FileSystem;
import org.sleuthkit.datamodel.LayoutFile;
import org.sleuthkit.datamodel.SleuthkitCase;
import org.sleuthkit.datamodel.TskCoreException;
import org.sleuthkit.datamodel.TskData;
/**
* Get counts of ingestable files/dirs for the content input source.
*
* Note, also includes counts of all unalloc children files (for the fs, image,
* volume) even if ingest didn't ask for them
*/
final class GetFilesCountVisitor extends ContentVisitor.Default<Long> {
private static final Logger logger = Logger.getLogger(GetFilesCountVisitor.class.getName());
@Override
public Long visit(FileSystem fs) {
//recursion stop here
//case of a real fs, query all files for it
SleuthkitCase sc = Case.getCurrentCase().getSleuthkitCase();
StringBuilder queryB = new StringBuilder();
queryB.append("( (fs_obj_id = ").append(fs.getId()); //NON-NLS
//queryB.append(") OR (fs_obj_id = NULL) )");
queryB.append(") )");
queryB.append(" AND ( (meta_type = ").append(TskData.TSK_FS_META_TYPE_ENUM.TSK_FS_META_TYPE_REG.getValue()); //NON-NLS
queryB.append(") OR (meta_type = ").append(TskData.TSK_FS_META_TYPE_ENUM.TSK_FS_META_TYPE_DIR.getValue()); //NON-NLS
queryB.append(") OR (meta_type = ").append(TskData.TSK_FS_META_TYPE_ENUM.TSK_FS_META_TYPE_VIRT.getValue()); //NON-NLS
queryB.append(" AND (name != '.') AND (name != '..')"); //NON-NLS
queryB.append(") )");
//queryB.append( "AND (type = ");
//queryB.append(TskData.TSK_DB_FILES_TYPE_ENUM.FS.getFileType());
//queryB.append(")");
try {
final String query = queryB.toString();
return sc.countFilesWhere(query);
} catch (TskCoreException ex) {
logger.log(Level.SEVERE, "Couldn't get count of all files in FileSystem", ex); //NON-NLS
return 0L;
}
}
@Override
public Long visit(LayoutFile lf) {
//recursion stop here
//case of LayoutFile child of Image or Volume
return 1L;
}
private long getCountFromChildren(Content content) {
long count = 0;
try {
List<Content> children = content.getChildren();
if (children.size() > 0) {
for (Content child : children) {
count += child.accept(this);
}
} else {
count = 1;
}
} catch (TskCoreException ex) {
logger.log(Level.WARNING, "Could not get count of objects from children to get num of total files to be ingested", ex); //NON-NLS
}
return count;
}
@Override
protected Long defaultVisit(Content cntnt) {
//recurse assuming this is image/vs/volume
//recursion stops at fs or unalloc file
return getCountFromChildren(cntnt);
}
}