/*
 *    Copyright 2005-2007 The Regents of the University of Michigan
 *
 * 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.tranche.example;

import org.tranche.Signature;
import org.tranche.hash.BigHash;
import org.tranche.util.FileEncoding;
import org.tranche.get.GetFileTool;
import org.tranche.meta.MetaData;
import org.tranche.meta.MetaDataAnnotation;

/**
 * This is an example snippet of code that shows the contents of a project file.
 *
 * @author Jayson Falkner - jfalkner@umich.edu
 */
public class ShowMetaData {
    public static void main(String[] args) throws Exception {
        // the hash to download
        BigHash hash = BigHash.createHashFromString("mGNNW+dCIIk0hEqUFOgM4QBi15TYjGX3I1I6V7uo9JDKHJu8Ks8kx+hwKhumqFu6XXjCy1D7IqP3/hZjLnqW0MbR2YsAAAAAABdZew==");
        
        // use the GetFileTool to download the project file
        GetFileTool gft = new GetFileTool();
        gft.setHash(hash);
        gft.setValidate(false);
        // get the meta-data
        MetaData md = gft.getMetaData();
        
        // dump the info
        System.out.println("*** Meta-data File Contents ***");
        System.out.println("Version: "+md.getVersion());
        System.out.println("Arbitrary File Name: "+md.getName());
        System.out.println("Suggested MIME Type: "+md.getMimeType());
        System.out.println("Suggested Data Expiration: "+md.getExpiration());
        System.out.println("Last-Updated Timestamp: "+md.getTimestamp());
        System.out.println("\n*** Encodings ***");
        for (FileEncoding fe : md.getEncodings()) {
            System.out.println("  "+fe.getName()+", hash: "+fe.getHash());
        }
        System.out.println("\n*** Signatures ***");
        for (Signature sig : md.getSignatures()) {
            System.out.println("  "+sig.getCert().getSubjectDN().getName()+", algorithm: "+sig.getAlgorithm());
        }
        System.out.println("\n*** 1MB File Segments (in order) ***");
        for (BigHash part : md.getParts()) {
            System.out.println("  "+part+", size: "+part.getLength());
        }
        System.out.println("\n*** Known Annotations ***");
        for (MetaDataAnnotation mda : md.getAnnotations()) {
            System.out.println("  "+mda.getName()+": "+mda.getValue());
        }
    }
}