com.blackducksoftware.ohcount4j.FileFinder.java Source code

Introduction

Here is the source code for com.blackducksoftware.ohcount4j.FileFinder.java

Source

/*
 * Copyright 2016 Black Duck Software, Inc.
 * 
 * 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 com.blackducksoftware.ohcount4j;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.Collection;

import org.apache.commons.io.DirectoryWalker;
import org.apache.commons.io.filefilter.FileFilterUtils;
import org.apache.commons.io.filefilter.HiddenFileFilter;
import org.apache.commons.io.filefilter.IOFileFilter;

public class FileFinder extends DirectoryWalker<File> {

    protected ArrayList<File> results;

    private boolean processSymbolicLinks;

    private static final IOFileFilter dirFilter = HiddenFileFilter.VISIBLE;

    private static final IOFileFilter fileFilter = FileFilterUtils.and(HiddenFileFilter.VISIBLE,
            FileFilterUtils.sizeFileFilter(1000000, false));

    public FileFinder() {
        this(false); // by default we don't process symbolic links, they are
                     // ignored.
    }

    public FileFinder(boolean processSymbolicLinks) {
        super(dirFilter, fileFilter, -1);
        this.processSymbolicLinks = processSymbolicLinks;
        results = new ArrayList<File>();
    }

    public ArrayList<File> getFiles() {
        return results;
    }

    public void addPath(String path) throws IOException {
        File file = new File(path);
        if (file.isDirectory()) {
            if (canAddDirectoryForProcessing(file)) {
                walk(file, results);
            }
        } else {
            results.add(file);
        }
    }

    @Override
    protected boolean handleDirectory(File directory, int depth, Collection<File> results) throws IOException {
        return canAddDirectoryForProcessing(directory);
    }

    private boolean canAddDirectoryForProcessing(File directory) {
        boolean isSymbolicLink = Files.isSymbolicLink(directory.toPath());
        if (isSymbolicLink) {
            return processSymbolicLinks;
        } else {
            return true;
        }
    }

    @Override
    protected void handleFile(File file, int depth, Collection<File> results) throws IOException {
        results.add(file);
    }

}