Example usage for com.mongodb DBObject keySet

Introduction

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

Prototype

Set<String> keySet();

Source Link

Document

Returns this object's fields' names

Usage

From source file:org.apache.jackrabbit.oak.plugins.document.mongo.MongoDocumentStore.java

License:Apache License

@Override
public <T extends Document> boolean create(Collection<T> collection, List<UpdateOp> updateOps) {
    log("create", updateOps);
    List<T> docs = new ArrayList<T>();
    DBObject[] inserts = new DBObject[updateOps.size()];
    List<String> ids = Lists.newArrayListWithCapacity(updateOps.size());

    for (int i = 0; i < updateOps.size(); i++) {
        inserts[i] = new BasicDBObject();
        UpdateOp update = updateOps.get(i);
        UpdateUtils.assertUnconditional(update);
        T target = collection.newDocument(this);
        UpdateUtils.applyChanges(target, update);
        docs.add(target);//from   ww  w  .  ja  v a  2s.  co  m
        ids.add(updateOps.get(i).getId());
        for (Entry<Key, Operation> entry : update.getChanges().entrySet()) {
            Key k = entry.getKey();
            Operation op = entry.getValue();
            switch (op.type) {
            case SET:
            case MAX:
            case INCREMENT: {
                inserts[i].put(k.toString(), op.value);
                break;
            }
            case SET_MAP_ENTRY: {
                Revision r = k.getRevision();
                if (r == null) {
                    throw new IllegalStateException("SET_MAP_ENTRY must not have null revision");
                }
                DBObject value = (DBObject) inserts[i].get(k.getName());
                if (value == null) {
                    value = new RevisionEntry(r, op.value);
                    inserts[i].put(k.getName(), value);
                } else if (value.keySet().size() == 1) {
                    String key = value.keySet().iterator().next();
                    Object val = value.get(key);
                    value = new BasicDBObject(key, val);
                    value.put(r.toString(), op.value);
                    inserts[i].put(k.getName(), value);
                } else {
                    value.put(r.toString(), op.value);
                }
                break;
            }
            case REMOVE_MAP_ENTRY:
                // nothing to do for new entries
                break;
            }
        }
        if (!inserts[i].containsField(Document.MOD_COUNT)) {
            inserts[i].put(Document.MOD_COUNT, 1L);
            target.put(Document.MOD_COUNT, 1L);
        }
    }

    DBCollection dbCollection = getDBCollection(collection);
    final Stopwatch watch = startWatch();
    boolean insertSuccess = false;
    try {
        try {
            dbCollection.insert(inserts);
            if (collection == Collection.NODES) {
                for (T doc : docs) {
                    nodesCache.putIfAbsent((NodeDocument) doc);
                    updateLocalChanges((NodeDocument) doc);
                }
            }
            insertSuccess = true;
            return true;
        } catch (MongoException e) {
            return false;
        }
    } finally {
        stats.doneCreate(watch.elapsed(TimeUnit.NANOSECONDS), collection, ids, insertSuccess);
    }
}

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From source file:org.apache.jackrabbit.oak.plugins.document.mongo.MongoDocumentStore.java

License:Apache License

@CheckForNull
protected <T extends Document> T convertFromDBObject(@Nonnull Collection<T> collection, @Nullable DBObject n) {
    T copy = null;//from ww w  .j  a v a 2s.  c om
    if (n != null) {
        copy = collection.newDocument(this);
        for (String key : n.keySet()) {
            Object o = n.get(key);
            if (o instanceof String) {
                copy.put(key, o);
            } else if (o instanceof Number
                    && (NodeDocument.MODIFIED_IN_SECS.equals(key) || Document.MOD_COUNT.equals(key))) {
                copy.put(key, Utils.asLong((Number) o));
            } else if (o instanceof Long) {
                copy.put(key, o);
            } else if (o instanceof Integer) {
                copy.put(key, o);
            } else if (o instanceof Boolean) {
                copy.put(key, o);
            } else if (o instanceof BasicDBObject) {
                copy.put(key, convertMongoMap((BasicDBObject) o));
            }
        }
    }
    return copy;
}

---

From source file:org.apache.jackrabbit.oak.plugins.document.mongo.MongoUtils.java

License:Apache License

/**
 * Returns {@code true} if there is an index on the given fields,
 * {@code false} otherwise. If multiple fields are passed, this method
 * check if there a compound index on those field. This method does not
 * check the sequence of fields for a compound index. That is, this method
 * will return {@code true} as soon as it finds an index that covers the
 * given fields, no matter their sequence in the compound index.
 *
 * @param collection the collection./*from   w w  w  . j  a  v  a 2  s.co m*/
 * @param fields the fields of an index.
 * @return {@code true} if the index exists, {@code false} otherwise.
 * @throws MongoException if the operation fails.
 */
static boolean hasIndex(DBCollection collection, String... fields) throws MongoException {
    Set<String> uniqueFields = Sets.newHashSet(fields);
    for (DBObject info : collection.getIndexInfo()) {
        DBObject key = (DBObject) info.get("key");
        Set<String> indexFields = Sets.newHashSet(key.keySet());
        if (uniqueFields.equals(indexFields)) {
            return true;
        }
    }
    return false;
}

---

From source file:org.apache.jackrabbit.oak.plugins.document.mongo.replica.GetRootRevisionsCallable.java

License:Apache License

@Override
public Timestamped<RevisionVector> call() throws Exception {
    List<Revision> revisions = new ArrayList<Revision>();
    DBCollection collection = nodeCollections.get(hostName);

    long start = clock.getTime();
    DBObject root = collection.findOne(new BasicDBObject(Document.ID, "0:/"));
    long end = clock.getTime();
    long mid = (start + end) / 2;

    if (root == null) {
        LOG.warn("Can't get the root document on {}", hostName);
        return null;
    }/*from w  ww.  java 2 s . c om*/

    DBObject lastRev = (DBObject) root.get("_lastRev");
    for (String clusterId : lastRev.keySet()) {
        String rev = (String) lastRev.get(clusterId);
        revisions.add(Revision.fromString(rev));
    }
    LOG.debug("Got /_lastRev from {}: {}", hostName, lastRev);
    return new Timestamped<RevisionVector>(new RevisionVector(revisions), mid);
}

---

From source file:org.apache.manifoldcf.crawler.connectors.gridfs.GridFSRepositoryConnector.java

License:Apache License

/**
 * Apply metadata to a repository document.
 *
 * @param rd is the repository document to apply the metadata to.
 * @param metadataMap is the resultset row to use to get the metadata. All
 * non-special columns from this row will be considered to be metadata.
 *///from  w w w  .  j a va  2 s  . c om
protected void applyMetadata(RepositoryDocument rd, DBObject metadataMap) throws ManifoldCFException {
    // Cycle through the document's fields
    Iterator iter = metadataMap.keySet().iterator();
    while (iter.hasNext()) {
        String fieldName = (String) iter.next();
        if (documentKnownColumns.get(fieldName) == null) {
            // Consider this field to contain metadata.
            // We can only accept non-binary metadata at this time.
            Object metadata = metadataMap.get(fieldName);
            if (!(metadata instanceof String)) {
                throw new ManifoldCFException(
                        "Metadata field '" + fieldName + "' must be convertible to a string.");
            }
            rd.addField(fieldName, metadata.toString());
        }
    }
}

---

From source file:org.apache.metamodel.mongodb.mongo2.MongoDbDataContext.java

License:Apache License

/**
 * Performs an analysis of an available collection in a Mongo {@link DB}
 * instance and tries to detect the table structure based on the first 1000
 * documents in the collection.//from  ww  w .  j  a va 2  s  .  c om
 *
 * @param db
 *            the mongo DB
 * @param collectionName
 *            the name of the collection
 * @return a table definition for mongo db.
 */
public static SimpleTableDef detectTable(DB db, String collectionName) {
    final DBCollection collection = db.getCollection(collectionName);
    final DBCursor cursor = collection.find().limit(1000);

    final SortedMap<String, Set<Class<?>>> columnsAndTypes = new TreeMap<String, Set<Class<?>>>();
    while (cursor.hasNext()) {
        DBObject object = cursor.next();
        Set<String> keysInObject = object.keySet();
        for (String key : keysInObject) {
            Set<Class<?>> types = columnsAndTypes.get(key);
            if (types == null) {
                types = new HashSet<Class<?>>();
                columnsAndTypes.put(key, types);
            }
            Object value = object.get(key);
            if (value != null) {
                types.add(value.getClass());
            }
        }
    }
    cursor.close();

    final String[] columnNames = new String[columnsAndTypes.size()];
    final ColumnType[] columnTypes = new ColumnType[columnsAndTypes.size()];

    int i = 0;
    for (Entry<String, Set<Class<?>>> columnAndTypes : columnsAndTypes.entrySet()) {
        final String columnName = columnAndTypes.getKey();
        final Set<Class<?>> columnTypeSet = columnAndTypes.getValue();
        final Class<?> columnType;
        if (columnTypeSet.size() == 1) {
            columnType = columnTypeSet.iterator().next();
        } else {
            columnType = Object.class;
        }
        columnNames[i] = columnName;
        if (columnType == ObjectId.class) {
            columnTypes[i] = ColumnType.ROWID;
        } else {
            columnTypes[i] = ColumnTypeImpl.convertColumnType(columnType);
        }
        i++;
    }

    return new SimpleTableDef(collectionName, columnNames, columnTypes);
}

---

From source file:org.apache.rya.mongodb.aggregation.AggregationPipelineQueryNode.java

License:Apache License

/**
 * Given a StatementPattern, generate an object representing the arguments
 * to a "$match" command that will find matching triples.
 * @param sp The StatementPattern to search for
 * @param path If given, specify the field that should be matched against
 *  the statement pattern, using an ordered list of field names for a nested
 *  field. E.g. to match records { "x": { "y": <statement pattern } }, pass
 *  "x" followed by "y".//from   w ww  .  j  a va2  s  . c  o  m
 * @return The argument of a "$match" query
 */
private static BasicDBObject getMatchExpression(final StatementPattern sp, final String... path) {
    final Var subjVar = sp.getSubjectVar();
    final Var predVar = sp.getPredicateVar();
    final Var objVar = sp.getObjectVar();
    final Var contextVar = sp.getContextVar();
    RyaIRI s = null;
    RyaIRI p = null;
    RyaType o = null;
    RyaIRI c = null;
    if (subjVar != null && subjVar.getValue() instanceof Resource) {
        s = RdfToRyaConversions.convertResource((Resource) subjVar.getValue());
    }
    if (predVar != null && predVar.getValue() instanceof IRI) {
        p = RdfToRyaConversions.convertIRI((IRI) predVar.getValue());
    }
    if (objVar != null && objVar.getValue() != null) {
        o = RdfToRyaConversions.convertValue(objVar.getValue());
    }
    if (contextVar != null && contextVar.getValue() instanceof IRI) {
        c = RdfToRyaConversions.convertIRI((IRI) contextVar.getValue());
    }
    final RyaStatement rs = new RyaStatement(s, p, o, c);
    final DBObject obj = strategy.getQuery(rs);
    // Add path prefix, if given
    if (path.length > 0) {
        final StringBuilder sb = new StringBuilder();
        for (final String str : path) {
            sb.append(str).append(".");
        }
        final String prefix = sb.toString();
        final Set<String> originalKeys = new HashSet<>(obj.keySet());
        originalKeys.forEach(key -> {
            final Object value = obj.removeField(key);
            obj.put(prefix + key, value);
        });
    }
    return (BasicDBObject) obj;
}

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From source file:org.apache.sling.mongodb.impl.ReadableValueMap.java

License:Apache License

protected void createValueMap(final DBObject dbObject) {
    if (dbObject == null) {
        this.valueMap = Collections.<String, Object>emptyMap();
    } else {/*from   w  ww. j a  va 2 s . co m*/
        final Map<String, Object> map = new HashMap<String, Object>();
        for (final String key : dbObject.keySet()) {
            final String name = MongoDBResourceProvider.keyToPropName(key);
            if (name != null) {
                map.put(key, dbObject.get(name));
            }
        }
        this.valueMap = Collections.unmodifiableMap(map);
    }
}

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From source file:org.araqne.logdb.mongo.query.MongoFindCommand.java

License:Apache License

private Map<String, Object> convert(DBObject doc) {
    Map<String, Object> m = new HashMap<String, Object>();

    for (String key : doc.keySet()) {
        m.put(key, convert(doc.get(key)));
    }/*from  w ww  .  j a v  a  2s.c om*/

    return m;
}

---

From source file:org.aw20.mongoworkbench.eclipse.view.table.QueryData.java

License:Open Source License

public QueryData(FindMongoCommand fmcmd) {
    if (!fmcmd.isSuccess())
        return;/* ww w .  ja  va 2 s.c  o m*/

    findCommand = fmcmd;
    count = findCommand.getCount();

    rightJustified = new HashSet<String>();
    Set<String> columnSet = new HashSet<String>();
    data = new ArrayList<Map>();
    DBCursor cursor = fmcmd.getCursor();

    while (cursor.hasNext()) {
        DBObject dbo = cursor.next();
        columnSet.addAll(dbo.keySet());

        if (dbo instanceof GridFSDBFile) {
            Map map = new HashMap();
            map.put("_id", ((GridFSDBFile) dbo).getId());
            map.put("chunkSize", ((GridFSDBFile) dbo).getChunkSize());
            map.put("md5", ((GridFSDBFile) dbo).getMD5());
            map.put("length", ((GridFSDBFile) dbo).getLength());
            map.put("filename", ((GridFSDBFile) dbo).getFilename());
            map.put("contentType", ((GridFSDBFile) dbo).getContentType());

            if (((GridFSDBFile) dbo).getAliases() != null)
                map.put("aliases", ((GridFSDBFile) dbo).getAliases());

            if (((GridFSDBFile) dbo).getMetaData() != null)
                map.put("metadata", ((GridFSDBFile) dbo).getMetaData());

            map.put("uploadDate", ((GridFSDBFile) dbo).getUploadDate());
            data.add(map);
        } else
            data.add(dbo.toMap());
    }

    findCommand.close();
    setColumns(columnSet, "_id");
}

---

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