org.eclipse.dirigible.repository.local.ZipRepository.java Source code

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Here is the source code for org.eclipse.dirigible.repository.local.ZipRepository.java

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/*******************************************************************************
 * Copyright (c) 2017 SAP and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * Contributors:
 * SAP - initial API and implementation
 *******************************************************************************/

package org.eclipse.dirigible.repository.local;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

import org.apache.commons.io.IOUtils;
import org.eclipse.dirigible.repository.api.ICommonConstants;

public class ZipRepository extends FileSystemRepository {

    private String zipRepositoryRootFolder;

    public ZipRepository(String user, String zip) throws LocalBaseException {

        File zipFile = new File(zip);
        if (zipFile.exists()) {
            try {
                Path rootFolder = Files.createTempDirectory("zip_repository");
                unpackZip(new FileInputStream(zip), rootFolder.toString());
                String zipFileName = zipFile.getName();
                zipRepositoryRootFolder = zipFileName.substring(0, zipFileName.lastIndexOf(ICommonConstants.DOT));
                createRepository(user, rootFolder.toString(), true);
            } catch (IOException e) {
                throw new LocalBaseException(e);
            }
        } else {
            throw new LocalBaseException(
                    String.format("Zip file containing Repository content does not exist at path: %s", zip));
        }
    }

    protected void unpackZip(InputStream zip, String folder) throws IOException {
        ZipInputStream zipInputStream = new ZipInputStream(zip);
        try {
            ZipEntry entry;
            while ((entry = zipInputStream.getNextEntry()) != null) {
                File entryDestination = new File(folder, entry.getName());
                if (entry.isDirectory()) {
                    entryDestination.mkdirs();
                } else {
                    entryDestination.getParentFile().mkdirs();
                    OutputStream out = new FileOutputStream(entryDestination);
                    IOUtils.copy(zipInputStream, out);
                    out.close();
                }
            }
        } finally {
            zipInputStream.close();
        }
    }

    // disable usage
    protected ZipRepository(String user, String rootFolder, boolean absolute) throws LocalBaseException {
        super(user, rootFolder, absolute);
    }

    // disable usage
    protected ZipRepository(String user) throws LocalBaseException {
        super(user);
    }

    // disable usage
    protected ZipRepository() throws LocalBaseException {
        super();
    }

    @Override
    protected String getRepositoryRootFolder() {
        return this.zipRepositoryRootFolder;
    }
}