ContentVisitor.java

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/*
 * Sleuth Kit Data Model
 *
 * Copyright 2011-2018 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.datamodel;

public interface ContentVisitor<T> {

        T visit(Directory d);

        T visit(File f);

        T visit(FileSystem fs);

        T visit(Image i);
        
        T visit(Pool p);        

        T visit(Volume v);

        T visit(VolumeSystem vs);

        T visit(LayoutFile lf);

        T visit(VirtualDirectory vd);
        
        T visit(LocalDirectory ld);     

        T visit(DerivedFile lf);

        T visit(LocalFile df);
        
        T visit(SlackFile sf);  

        T visit(BlackboardArtifact ba); 
        
        T visit(Report r);
        
        T visit(OsAccount act);
        
        T visit(UnsupportedContent uc);

        static abstract public class Default<T> implements ContentVisitor<T> {

                protected abstract T defaultVisit(Content c);

                @Override
                public T visit(Directory d) {
                        return defaultVisit(d);
                }

                @Override
                public T visit(File f) {
                        return defaultVisit(f);
                }

                @Override
                public T visit(FileSystem fs) {
                        return defaultVisit(fs);
                }

                @Override
                public T visit(Image i) {
                        return defaultVisit(i);
                }

                @Override
                public T visit(Volume v) {
                        return defaultVisit(v);
                }
                
                @Override
                public T visit(Pool p) {
                        return defaultVisit(p);
                }

                @Override
                public T visit(VolumeSystem vs) {
                        return defaultVisit(vs);
                }

                @Override
                public T visit(LayoutFile lf) {
                        return defaultVisit(lf);
                }

                @Override
                public T visit(VirtualDirectory ld) {
                        return defaultVisit(ld);
                }
                
                @Override
                public T visit(LocalDirectory ld) {
                        return defaultVisit(ld);
                }

                @Override
                public T visit(DerivedFile df) {
                        return defaultVisit(df);
                }

                @Override
                public T visit(LocalFile lf) {
                        return defaultVisit(lf);
                }
                
                @Override
                public T visit(SlackFile sf) {
                        return defaultVisit(sf);
                }
                
                @Override
                public T visit(BlackboardArtifact ba) {
                        return defaultVisit(ba);
                }

                @Override
                public T visit(Report r) {
                        return defaultVisit(r);
                }
                
                @Override
                public T visit(OsAccount act) {
                        return defaultVisit(act);
                }
                
                @Override
                public T visit(UnsupportedContent uc) {
                        return defaultVisit(uc);
                }
        }
}