Example usage for com.mongodb DBObject get

Introduction

In this page you can find the example usage for com.mongodb DBObject get.

Prototype

Object get(String key);

Source Link

Document

Gets a field from this object by a given name.

Usage

From source file:be.solidx.hot.data.mongo.DBObjectNativeObjectTransformer.java

License:Open Source License

public static NativeObject dbObjectToNativeObject(DBObject dbObject) {
    NativeObject nativeObject = new NativeObject();
    if (dbObject == null) {
        return null;
    }/*from  www . j a  v  a2s .  co m*/
    for (String key : dbObject.keySet()) {
        if (dbObject.get(key) instanceof List<?>) {
            nativeObject.put(key.toString(), nativeObject, listToNativeArray((List<?>) dbObject.get(key)));
        } else if (dbObject.get(key) instanceof DBObject) {
            nativeObject.put(key.toString(), nativeObject,
                    dbObjectToNativeObject((DBObject) dbObject.get(key)));
        } else {
            nativeObject.put(key.toString(), nativeObject,
                    key.equals("_id") ? dbObject.get(key).toString() : dbObject.get(key));
        }
    }
    return nativeObject;
}

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From source file:be.solidx.hot.data.mongo.DBObjectPyDictionaryTransformer.java

License:Open Source License

public PyDictionary dbObjectToPyDictionary(DBObject dbObject) {
    if (dbObject == null) {
        return null;
    }/*from   w w w.  j a v  a  2 s. c  om*/
    PyDictionary pyDictionary = new PyDictionary();
    for (String key : dbObject.keySet()) {
        if (dbObject.get(key) instanceof List<?>) {
            pyDictionary.put(key.toString(), transformList((List<?>) dbObject.get(key)));
        } else if (dbObject.get(key) instanceof DBObject) {
            pyDictionary.put(key.toString(), dbObjectToPyDictionary((DBObject) dbObject.get(key)));
        } else {
            pyDictionary.put(key.toString(),
                    key.equals("_id") ? dbObject.get(key).toString() : dbObject.get(key));
        }
    }
    return pyDictionary;
}

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From source file:bhl.pages.database.MongoConnection.java

License:Open Source License

/**
 * Make a subset of the documents by a given subkey and value, 
 * then retrieve all the values of the field
 * @param collection the collection to search
 * @param subKey the subKey to make the initial choice
 * @param subValue the value of the subKey to search for
 * @param fields the field names to retrieve
 * @return and array of field values as JSON object strings
 * @throws DbException //w  ww  .j a  va2  s.co  m
 */
@Override
public String[] listCollectionBySubKey(String collection, String subKey, String subValue, String[] fields)
        throws DbException {
    try {
        connect();
        DBCollection coll = getCollectionFromName(collection);
        DBObject query = new BasicDBObject(subKey, subValue);
        BasicDBObject keys = new BasicDBObject();
        for (int i = 0; i < fields.length; i++)
            keys.put(fields[i], 1);
        DBCursor cursor = coll.find(query, keys);
        if (cursor.length() > 0) {
            String[] array = new String[cursor.length()];
            Iterator iter = cursor.iterator();
            int i = 0;
            while (iter.hasNext()) {
                DBObject bson = (DBObject) iter.next();
                JSONObject jobj = new JSONObject();
                for (int j = 0; j < fields.length; j++)
                    jobj.put(fields[j], bson.get(fields[j]));
                array[i++] = jobj.toJSONString();
            }
            return array;
        } else
            return new String[0];
    } catch (Exception e) {
        throw new DbException(e);
    }
}

---

From source file:bhl.pages.database.MongoConnection.java

License:Open Source License

/**
 * Get the content of the given page and document
 * @param docid the document identifier (an integer in BHL)
 * @param pageid the page identifier (NOT page_sequence) also an int
 * @return the textual content as a String
 * @throws Exception /*w  w w  . ja  v a  2s . c o  m*/
 */
public String getPageContent(String docid, String pageid) throws DbException {
    try {
        if (docid != null && pageid != null) {
            connect();
            DBCollection coll = db.getCollection(Database.PAGES);
            BasicDBObject ref = new BasicDBObject();
            ref.put(JSONKeys.IA_IDENTIFIER, docid);
            ref.put(JSONKeys.BHL_PAGE_ID, Integer.parseInt(pageid));
            BasicDBObject key = new BasicDBObject();
            key.put(JSONKeys.PAGE_SEQUENCE, 1);
            DBObject obj = coll.findOne(ref, key);
            if (obj != null) {
                Object pobj = obj.get(JSONKeys.PAGE_SEQUENCE);
                int pageNo = ((Number) pobj).intValue();
                DBCollection coll2 = db.getCollection(Database.DOCUMENTS);
                BasicDBObject ref2 = new BasicDBObject();
                ref2.put(JSONKeys.IA_IDENTIFIER, docid);
                ref2.put(JSONKeys.PAGE_SEQUENCE, pageNo);
                BasicDBObject key2 = new BasicDBObject();
                key2.put(JSONKeys.CONTENT, 1);
                Object obj2 = coll2.findOne(ref2, key2);
                if (obj2 != null)
                    return (String) ((DBObject) obj2).get(JSONKeys.CONTENT);
                else
                    throw new Exception("could not find content for docid=" + docid + ", pageid=" + pageid);
            } else
                throw new Exception("could not find docid=" + docid + ", pageid=" + pageid);
        } else
            throw new Exception("Missing docid or pageid");
    } catch (Exception e) {
        throw new DbException(e);
    }
}

---

From source file:biopolis.headless.BiopolisSegmentationManagement.java

public List<Long> search(BiopolisSegmentQuery seg) throws BiopolisGeneralException {
    byte[] bytes = Base64.decodeBase64(seg.biopolisid);
    ObjectId someid = new ObjectId(bytes);
    DBCursor cur = dbcol.find(new BasicDBObject("_id", someid));
    if (!cur.hasNext()) {
        throw new BiopolisGeneralException("Search not exists with id " + seg.biopolisid);
    }//  ww  w  .java2s . c  o m
    BasicDBObject setter = new BasicDBObject("$set", new BasicDBObject("biopolisttl", new java.util.Date()));
    dbcol.update(new BasicDBObject("_id", someid), setter);
    dbcol.update(new BasicDBObject("biopolisid", seg.biopolisid), setter);

    List<Long> resus = new ArrayList<Long>();
    cur = dbcol.find(new BasicDBObject("biopolisid", seg.biopolisid));
    cur = cur.sort(new BasicDBObject("biopolisdata", 1));

    int count = 0;
    while (cur.hasNext()) {
        System.out.println("scan " + seg.from);
        DBObject obj = cur.next();
        if ((count >= seg.from) && (count < seg.from + this.segSZ)) {
            System.out.println("add");
            Long i = (Long) obj.get("biopolisdata");
            resus.add(i);
        }
        count++;
    }
    System.out.println(resus.size());
    return resus;
}

---

From source file:br.bireme.scl.CopyMongoDb.java

License:Open Source License

private static void copyDB(final String from_host, final String to_host, final String from_db,
        final String to_db, final String from_port, final String to_port, final boolean appendCollections,
        final boolean displayAllIds) throws UnknownHostException, IOException {
    assert from_host != null;
    assert to_host != null;
    assert from_db != null;
    assert to_db != null;
    assert from_port != null;
    assert to_port != null;

    final int MAX_LOOP_SIZE = 15000; // MongoException$CursorNotFound
    final MongoClient fromClient = new MongoClient(from_host, Integer.parseInt(from_port));
    final MongoClient toClient = new MongoClient(to_host, Integer.parseInt(to_port));
    final DB fromDb = fromClient.getDB(from_db);
    final DB toDb = toClient.getDB(to_db);

    if (!appendCollections) {
        toDb.dropDatabase();/*from   w  ww  .j av a2 s .  c  o m*/
    }

    final Set<String> colls = fromDb.getCollectionNames();

    for (String cname : colls) {
        if (cname.equals("system.indexes")) {
            continue;
        }

        final DBCollection fromColl = fromDb.getCollection(cname);
        final DBCollection toColl = toDb.getCollection(cname);

        DBCursor cursor = fromColl.find();
        int curr = 0;

        System.out.println("Copying collection: " + cname);

        while (cursor.hasNext()) {
            if (curr % MAX_LOOP_SIZE == 0) {
                if (curr > 0) {
                    cursor.close();
                    cursor = fromColl.find().skip(curr);
                    if (!cursor.hasNext()) {
                        throw new IOException("hasNext() failed");
                    }
                }
            }
            final DBObject doc = cursor.next();
            final WriteResult ret = toColl.save(doc, WriteConcern.ACKNOWLEDGED);

            if (!ret.getCachedLastError().ok()) {
                System.err.println("write error doc id=" + doc.get("_id"));
            }
            if (++curr % 1000 == 0) {
                System.out.println("+++" + curr);
            }
            if (displayAllIds) {
                System.out.println(" id=" + doc.get("_id"));
            }
        }
        cursor.close();

        System.out.println();
    }
}

---

From source file:br.bireme.scl.MongoOperations.java

License:Open Source License

/**
 * Obtem uma lista com objetos IdUrl obtidos da base de dados MongoDb
 * @param coll coleo onde esto as urls//  w w w  . ja  v  a 2s . com
 * @param centerIds filtro dos centros colaboradores desejados. Nunca  nulo
 * @param filter se no nulo filtra as urls com um cc especfico
 * @param from indice inicial da lista a ser recuperado. Comea de 1.
 * @param count numero de elementos a serem devolvidos
 * @param ascendingOrder se retorna por ordem de data ascendente ou descendente
 * @return lista de objetos IdUrl
 */
private static List<IdUrl> getCenterUrls(final DBCollection coll, final Set<String> centerIds,
        final String filter, final int from, final int count, final boolean ascendingOrder) {
    if (coll == null) {
        throw new NullPointerException("coll");
    }
    if (centerIds == null) {
        throw new NullPointerException("centerIds");
    }
    if (centerIds.isEmpty()) {
        throw new IllegalArgumentException("empty centerIds");
    }
    if (from < 1) {
        throw new IllegalArgumentException("from[" + from + "] < 1");
    }
    if (count < 1) {
        throw new IllegalArgumentException("count[" + count + "] < 1");
    }
    //final Set<IdUrl> lst = new TreeSet<IdUrl>();
    final List<IdUrl> lst = new ArrayList<IdUrl>();
    final SimpleDateFormat format = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
    final BasicDBObject sort = new BasicDBObject(DATE_FIELD, ascendingOrder ? 1 : -1);

    if (filter == null) {
        final BasicDBList cclst = new BasicDBList();

        for (String centerId : centerIds) {
            cclst.add(centerId);
        }
        final BasicDBObject in = new BasicDBObject("$in", cclst);
        final BasicDBObject query = new BasicDBObject(CENTER_FIELD, in);
        //final DBCursor cursor = coll.find(query).skip(from - 1).limit(count);
        final DBCursor cursor = coll.find(query).sort(sort).skip(from - 1).limit(count);
        while (cursor.hasNext()) {
            final DBObject doc = cursor.next();
            final BasicDBList ccsLst = (BasicDBList) doc.get(CENTER_FIELD);
            final Set<String> ccs = new TreeSet<String>();

            for (Object cc : ccsLst) {
                ccs.add((String) cc);
            }

            final IdUrl iu = new IdUrl((String) doc.get(ID_FIELD), (String) doc.get(PRETTY_BROKEN_URL_FIELD),
                    ccs, format.format((Date) (doc.get(DATE_FIELD))), (String) doc.get(MST_FIELD));
            lst.add(iu);
        }
        cursor.close();
    } else {
        final BasicDBObject query = new BasicDBObject(CENTER_FIELD, filter);
        final DBCursor cursor = coll.find(query).sort(sort).skip(from - 1).limit(count);

        while (cursor.hasNext()) {
            final DBObject doc = cursor.next();
            final Set<String> ccs = new TreeSet<String>();
            ccs.add(filter);

            final IdUrl iu = new IdUrl((String) doc.get(ID_FIELD), (String) doc.get(PRETTY_BROKEN_URL_FIELD),
                    ccs, format.format((Date) doc.get(DATE_FIELD)), (String) doc.get(MST_FIELD));
            lst.add(iu);
        }
        cursor.close();
    }
    return lst;
}

---

From source file:br.bireme.scl.MongoOperations.java

License:Open Source License

public static SearchResult getDocuments(final DBCollection coll, final String docMast, final String docId,
        final String docUrl, final Set<String> centerIds, final boolean decreasingOrder, final int from,
        final int count) {
    if (coll == null) {
        throw new NullPointerException("coll");
    }/*from w w w. ja  v a  2s  .c o m*/
    if (from < 1) {
        throw new IllegalArgumentException("from[" + from + "] < 1");
    }
    if (count < 1) {
        throw new IllegalArgumentException("count[" + count + "] < 1");
    }
    final List<IdUrl> lst = new ArrayList<IdUrl>();
    final BasicDBObject query = new BasicDBObject();

    if (docMast != null) {
        query.append(MST_FIELD, docMast);
    }
    if (docId != null) {
        final Pattern pat = Pattern.compile("^" + docId.trim() + "_\\d+");
        query.append(ID_FIELD, pat);
    }
    if (docUrl != null) {
        query.append(BROKEN_URL_FIELD, docUrl.trim());
    }
    if (centerIds != null) {
        final BasicDBList cclst = new BasicDBList();
        for (String centerId : centerIds) {
            cclst.add(centerId);
        }
        final BasicDBObject in = new BasicDBObject("$in", cclst);
        query.append(CENTER_FIELD, in);
    }
    final BasicDBObject sort = new BasicDBObject(DATE_FIELD, decreasingOrder ? -1 : 1);
    final DBCursor cursor = coll.find(query).sort(sort).skip(from - 1).limit(count);
    final int size = cursor.count();
    final SimpleDateFormat format = new SimpleDateFormat("dd-MM-yyyy");
    while (cursor.hasNext()) {
        final DBObject doc = cursor.next();
        final BasicDBList ccsLst = (BasicDBList) doc.get(CENTER_FIELD);
        final Set<String> ccs = new TreeSet<String>();

        for (Object cc : ccsLst) {
            ccs.add((String) cc);
        }
        final IdUrl iu = new IdUrl((String) doc.get(ID_FIELD), (String) doc.get(PRETTY_BROKEN_URL_FIELD), ccs,
                format.format((Date) (doc.get(DATE_FIELD))), (String) doc.get(MST_FIELD));
        lst.add(iu);
    }
    cursor.close();

    return new SearchResult(size, lst);
}

---

From source file:br.bireme.scl.MongoOperations.java

License:Open Source License

public static void fixMissingHttp(final DBCollection coll, final DBCollection hcoll) throws IOException {
    if (coll == null) {
        throw new NullPointerException("coll");
    }/*from  ww w.  j  a  v  a  2  s  .c  o  m*/
    if (hcoll == null) {
        throw new NullPointerException("hcoll");
    }
    final String HTTP = "http://";
    final DBCursor cursor = coll.find();

    while (cursor.hasNext()) {
        final DBObject dbo = cursor.next();
        final String url = ((String) dbo.get(BROKEN_URL_FIELD)).trim();

        if (!url.startsWith(HTTP)) {
            final String fixedUrl = HTTP + url;
            final String id = (String) dbo.get(ID_FIELD);

            if (!CheckUrl.isBroken(CheckUrl.check(fixedUrl))) {
                if (!Tools.isDomain(fixedUrl)) {
                    if (!updateDocument(coll, hcoll, id, fixedUrl, "system", true)) {
                        throw new IOException("could not update document id=" + id);
                    }
                }
            }
        }
    }
    cursor.close();
}

---

From source file:br.bireme.scl.TabulateField.java

License:Open Source License

private static String getValue(final DBObject obj, final String path) {
    assert obj != null;
    assert path != null;

    final String[] split = path.split(" */ *");
    final Matcher mat = Pattern.compile("([^\\[]+)\\[(\\d+)\\]").matcher("");
    final int len = split.length;
    final String str;
    DBObject dbo = obj;

    for (int idx = 0; idx < len - 1; idx++) {
        final String elem = split[idx];

        mat.reset(elem);/*  ww  w  .  j  av a2s  .com*/
        if (mat.matches()) {
            //System.out.println("0:" + mat.group(0) + " 1:" + mat.group(1) + " 2:" + mat.group(2));
            final BasicDBList lst = (BasicDBList) dbo.get(mat.group(1));
            dbo = (DBObject) lst.get(mat.group(2));
            if (dbo == null) {
                break;
            }
        } else {
            dbo = (DBObject) dbo.get(elem);
        }
    }
    if (dbo == null) {
        str = null;
    } else {
        final String elem = split[len - 1];

        mat.reset(elem);
        if (mat.matches()) {
            final BasicDBList lst = (BasicDBList) dbo.get(mat.group(1));
            str = lst.get(mat.group(2)).toString();
        } else {
            str = dbo.get(elem).toString();
        }
    }

    return str;
}

---

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