ListCommand.java

/*
 * Copyright 2011 b1.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.b1.pack.cli;

import com.google.common.base.Preconditions;
import org.b1.pack.api.reader.PackReader;
import org.b1.pack.api.volume.VolumeFinder;
import org.b1.pack.api.volume.VolumeService;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;

public class ListCommand implements PackCommand {

    @Override
    public void execute(ArgSet argSet) throws IOException {
        Preconditions.checkArgument(argSet.getFileNames().isEmpty(), "Filters not supported");
        File file = new File(argSet.getPackName());
        if (!file.isFile()) {
            throw new FileNotFoundException("File not found: " + file);
        }
        System.out.println("Listing " + file);
        File parentFolder = file.getParentFile();
        VolumeFinder volumeFinder = VolumeService.getInstance(argSet.getTypeFormat()).
                createVolumeFinder(new FsVolumeFinderProvider(parentFolder, file.getName()));
        PackReader.getInstance(argSet.getTypeFormat()).
                read(new FsReaderProvider(new ListBuilder("", true), parentFolder, volumeFinder, argSet.getPassword()));
        System.out.println("Done");
    }
}