/*
* Autopsy Forensic Browser
*
* Copyright 2011-2014 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.ArrayList;
import java.util.Collection;
import java.util.logging.Level;
import org.sleuthkit.autopsy.coreutils.Logger;
import org.sleuthkit.datamodel.Content;
import org.sleuthkit.datamodel.ContentVisitor;
import org.sleuthkit.datamodel.Directory;
import org.sleuthkit.datamodel.AbstractFile;
import org.sleuthkit.datamodel.Image;
import org.sleuthkit.datamodel.VirtualDirectory;
import org.sleuthkit.datamodel.TskException;
import org.sleuthkit.datamodel.Volume;
import org.sleuthkit.datamodel.VolumeSystem;
/**
* Abstract visitor for getting all the files from content.
*/
abstract class GetFilesContentVisitor implements ContentVisitor<Collection<AbstractFile>> {
private static final Logger logger = Logger.getLogger(GetFilesContentVisitor.class.getName());
@Override
public Collection<AbstractFile> visit(VirtualDirectory ld) {
return getAllFromChildren(ld);
}
@Override
public Collection<AbstractFile> visit(Directory drctr) {
return getAllFromChildren(drctr);
}
@Override
public Collection<AbstractFile> visit(Image image) {
return getAllFromChildren(image);
}
@Override
public Collection<AbstractFile> visit(Volume volume) {
return getAllFromChildren(volume);
}
@Override
public Collection<AbstractFile> visit(VolumeSystem vs) {
return getAllFromChildren(vs);
}
/**
* Aggregate all the matches from visiting the children Content objects of a
* parent Content object.
*
* @param parent A content object.
*
* @return The child files of the content.
*/
protected Collection<AbstractFile> getAllFromChildren(Content parent) {
Collection<AbstractFile> all = new ArrayList<>();
try {
for (Content child : parent.getChildren()) {
all.addAll(child.accept(this));
}
} catch (TskException ex) {
logger.log(Level.SEVERE, "Error getting Content children", ex); //NON-NLS
}
return all;
}
}