br.bireme.scl.ShowBrokenLinks.java Source code

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Here is the source code for br.bireme.scl.ShowBrokenLinks.java

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/*=========================================================================
    
Copyright  2015 BIREME/PAHO/WHO
    
This file is part of Social Check Links.
    
Social Check Links is free software: you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 2.1 of
the License, or (at your option) any later version.
    
Social Check Links is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.
    
You should have received a copy of the GNU Lesser General Public
License along with Social Check Links. If not, see
<http://www.gnu.org/licenses/>.
    
=========================================================================*/

package br.bireme.scl;

import static br.bireme.scl.BrokenLinks.BROKEN_LINKS_COL;
import static br.bireme.scl.BrokenLinks.CENTER_FIELD;
import static br.bireme.scl.BrokenLinks.DEFAULT_PORT;
import static br.bireme.scl.BrokenLinks.ID_FIELD;
import static br.bireme.scl.BrokenLinks.SOCIAL_CHECK_DB;
import com.mongodb.BasicDBList;
import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import com.mongodb.MongoClient;
import java.io.IOException;
import java.net.UnknownHostException;
import java.text.ParseException;
import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;

/**
 *
 * @author Heitor Barbieri
 * date: 20150416
 */
public class ShowBrokenLinks {
    final DBCollection coll;

    public ShowBrokenLinks(final String host, final String database, final String collection)
            throws UnknownHostException {
        this(host, DEFAULT_PORT, null, null, database, collection);

    }

    public ShowBrokenLinks(final String host, final int port, final String user, final String password,
            final String database, final String collection) throws UnknownHostException {
        if (host == null) {
            throw new NullPointerException("host");
        }
        if (port <= 0) {
            throw new IllegalArgumentException("port=" + port);
        }
        if (database == null) {
            throw new NullPointerException("database");
        }
        if (collection == null) {
            throw new NullPointerException("collection");
        }

        final MongoClient mongoClient = new MongoClient(host, port);
        final DB db = mongoClient.getDB(database);
        if (user != null) {
            final boolean auth = db.authenticate(user, password.toCharArray());
            if (!auth) {
                throw new IllegalArgumentException("invalid user/password");
            }
        }
        coll = db.getCollection(collection);
    }

    public Map<String, String> statistics() throws IOException {
        final Map<String, String> ret = new TreeMap<String, String>();
        final Map<String, Integer> map = new HashMap<String, Integer>();
        final DBCursor cursor = coll.find();

        for (DBObject obj : cursor) {
            final BasicDBObject dobj = (BasicDBObject) obj;
            final BasicDBList ccList = (BasicDBList) dobj.get(CENTER_FIELD);
            final String cc = (String) ccList.get(0);

            if (cc == null) {
                throw new IOException("null center field. Id=" + dobj.getString(ID_FIELD));
            }
            Integer val = map.get(cc);
            if (val == null) {
                val = 0;
            }
            map.put(cc, val + 1);
        }
        cursor.close();

        for (Map.Entry<String, Integer> entry : map.entrySet()) {
            final String key = entry.getKey();
            final int value = entry.getValue();
            final int dif = 999999 - value;
            ret.put(dif + "_" + value + "_" + key, key);
        }

        return ret;
    }

    private static void usage() {
        System.err.println(
                "usage: ShowBrokenLinks <host> [-port=<port>]" + "\n\t\t     [-user=<user> -password=<pswd>]"
                        + "\n\t\t     [-database=<dbase>] [-collection=<col>]");
        System.exit(1);
    }

    public static void main(final String[] args) throws UnknownHostException, IOException, ParseException {
        if (args.length < 1) {
            usage();
        }

        String host = args[0];
        int port = DEFAULT_PORT;
        String user = null;
        String password = null;
        String database = SOCIAL_CHECK_DB;
        String collection = BROKEN_LINKS_COL;

        for (int idx = 1; idx < args.length; idx++) {
            if (args[idx].startsWith("-port=")) {
                port = Integer.parseInt(args[idx].substring(6));
            } else if (args[idx].startsWith("-user=")) {
                user = args[idx].substring(6);
            } else if (args[idx].startsWith("-password=")) {
                password = args[idx].substring(10);
            } else if (args[idx].startsWith("-database=")) {
                database = args[idx].substring(10);
            } else if (args[idx].startsWith("-collection=")) {
                collection = args[idx].substring(12);
            } else {
                usage();
            }
        }

        final ShowBrokenLinks blinks = new ShowBrokenLinks(host, port, user, password, database, collection);
        final Map<String, String> map = blinks.statistics();
        int idx = 0;
        int total = 0;

        for (Map.Entry<String, String> entry : map.entrySet()) {
            final String key = entry.getKey();
            final int idx1 = key.indexOf('_');
            final int idx2 = key.lastIndexOf('_');
            final String num = key.substring(idx1 + 1, idx2);

            System.out.println((++idx) + ") CC=" + entry.getValue() + " #=" + num);
            total += Integer.parseInt(num);
        }
        System.out.println("\nTotal=" + total);
    }
}