org.opf_labs.fmts.droid.ForegCmd.java Source code

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Here is the source code for org.opf_labs.fmts.droid.ForegCmd.java

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/**
 * Copyright (C) 2012 Andrew Jackson <Andrew.Jackson@bl.uk>
 *
 * 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.opf_labs.fmts.droid;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.math.BigInteger;
import java.net.Authenticator;
import java.net.PasswordAuthentication;
import java.net.URL;

import javax.xml.bind.JAXBException;

import org.apache.commons.io.IOUtils;

import eu.planets_project.ifr.core.techreg.formats.SigFileUtils;
import uk.gov.nationalarchives.pronom.FileFormatType;
import uk.gov.nationalarchives.pronom.SigFile;

/**
 * @author Andrew.Jackson@bl.uk
 *
 */
public class ForegCmd {

    /**
     * Apache CLI
     * http://commons.apache.org/cli/usage.html
     * 
     * @param args
     * @throws Exception 
     * @throws JAXBException 
     * @throws FileNotFoundException 
     */
    public static void main(String[] args) throws Exception {
        //downloadSigFile();
        downloadAllPronomFormatRecords(new File("data/pronom"));
        //pythonInvoker();
    }

    static void downloadSigFile() {
        // To make java.net.URL cope with an authenticating proxy.
        // Apache HTTPClient does this automatically, but we're not using that here at the moment.
        String proxyUser = System.getProperty("http.proxyUser");
        if (proxyUser != null) {
            Authenticator.setDefault(new ProxyAuth(proxyUser, System.getProperty("http.proxyPassword")));
        }

        SigFile sigFile = SigFileUtils.getLatestSigFile();
        try {
            SigFileUtils.writeSigFileToOutputStream(sigFile, new FileOutputStream("signaturefile.xml"));
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (JAXBException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    static class ProxyAuth extends Authenticator {
        private PasswordAuthentication auth;

        private ProxyAuth(String user, String password) {
            auth = new PasswordAuthentication(user, password == null ? new char[] {} : password.toCharArray());
        }

        protected PasswordAuthentication getPasswordAuthentication() {
            return auth;
        }
    }

    public static void downloadAllPronomFormatRecords(File outputFolder) throws Exception {
        SigFile sigFile = SigFileUtils.getLatestSigFile();
        BigInteger version = sigFile.getFFSignatureFile().getVersion();
        System.out.println("Got version " + version);
        String filename = "droid-signature-file.xml";
        try {
            SigFileUtils.writeSigFileTypeToOutputStream(sigFile.getFFSignatureFile(),
                    new FileOutputStream(new File(outputFolder, filename)));
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            throw (e);
        }
        //
        try {
            for (FileFormatType fft : sigFile.getFFSignatureFile().getFileFormatCollection().getFileFormat()) {
                String puid = fft.getPUID();
                String puidFilename = puid + ".xml";
                FileOutputStream fos = new FileOutputStream(new File(outputFolder, puidFilename));
                URL repurl = SigFileUtils.getPronomUrlForPUID(puid);
                System.out.println("Downloading " + repurl + " to " + outputFolder + "/" + puidFilename);
                IOUtils.copy(repurl.openStream(), fos);
                fos.flush();
                fos.getChannel().force(true);
                fos.close();
            }
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            throw (e);
        }

    }

}