Examples of com.mongodb.DBCollection.findOne()

com.mongodb.DBCollection.findOne()
Finds an object by its id. This compares the passed in value to the _id field of the document @param obj any valid object @return the object, if found, otherwise null @throws MongoException

            return null;
        }
        logger.debug("Searching {} in {}", info[1], info[0]);
        final DBCollection col = this.getCollection(info[0]);
        if ( col != null ) {
            final DBObject obj = col.findOne(QueryBuilder.start(getPROP_PATH()).is(info[1]).get());
            logger.debug("Found {}", obj);
            if ( obj != null ) {
                return new MongoDBResource(resourceResolver,
                        path,
                        info[0],

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     */
    public MockMongoClientBuilderContext insert(String collectionName, DBObject object) {
      DBCollection collection = mock( DBCollection.class );
      collections.put( collectionName, collection );


      when( collection.findOne( any( DBObject.class ), any( DBObject.class ), any( ReadPreference.class ) ) ).thenReturn( object );


      WriteResult writeResult = mock( WriteResult.class );
      when( collection.remove( any( DBObject.class ), any( WriteConcern.class ) ) ).thenReturn( writeResult );


      return this;

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      DBCollection collection = getCollection( key.getEntityKey() );
      DBObject searchObject = prepareIdObject( key.getEntityKey() );
      DBObject projection = getProjection( key, true );


      return collection.findOne( searchObject, projection, readPreference );
    }
  }


  private DBObject getObject(EntityKey key, TupleContext tupleContext) {
    ReadPreference readPreference = getReadPreference( tupleContext );

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    DBCollection collection = getCollection( key );
    DBObject searchObject = prepareIdObject( key );
    BasicDBObject projection = getProjection( tupleContext );


    return collection.findOne( searchObject, projection, readPreference );
  }


  private BasicDBObject getProjection(TupleContext tupleContext) {
    return getProjection( tupleContext.getSelectableColumns() );
  }

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        DBCollection coll = getCollection();
        
        DBObject query = new BasicDBObject();
        query.put("key", key);
        
        DBObject result = coll.findOne(query);
        if (result == null) {
            return false;
        }
        
        if (result.get("value").equals(true)) {

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    public BasicDBList getList(String key) {
        DBCollection coll = getCollection();
        DBObject query = new BasicDBObject();
        query.put("key", key);


        DBObject result = coll.findOne(query);


        return (BasicDBList) result.get("value");
    }


    private DBCollection getCollection() {

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        mock.reset();
        // ensure that the persisted lastVal is startTimestamp + 300min
        Calendar cal300 = (Calendar) startTimestamp.clone();
        cal300.add(Calendar.MINUTE, 300);
        context.stopRoute("tailableCursorConsumer2");
        assertEquals(cal300.getTime(), trackingCol.findOne(new BasicDBObject("persistentId", "darwin")).get(MongoDbTailTrackingConfig.DEFAULT_FIELD));
        context.startRoute("tailableCursorConsumer2");
        
        // expect 300 messages and not 600
        mock.expectedMessageCount(300);
        // pump 300 records

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        assertEquals(cal301.getTime(), ((DBObject) firstBody).get("increasing"));
        // check that the persisted lastVal after stopping the route is startTimestamp + 600min
        context.stopRoute("tailableCursorConsumer2");
        Calendar cal600 = (Calendar) startTimestamp.clone();
        cal600.add(Calendar.MINUTE, 600);
        assertEquals(cal600.getTime(), trackingCol.findOne(new BasicDBObject("persistentId", "darwin")).get(MongoDbTailTrackingConfig.DEFAULT_FIELD));
    }
    
    @Test
    public void testCustomTailTrackLocation() throws Exception {
        assertEquals(0, cappedTestCollection.count());

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        mock.reset();
        
        // stop the route to ensure that our lastVal is persisted, and check it
        context.stopRoute("tailableCursorConsumer3");
        // ensure that the persisted lastVal is 300, newton is the name of the trackingField we are using
        assertEquals(300, trackingCol.findOne(new BasicDBObject("persistentId", "darwin")).get("newton"));
        context.startRoute("tailableCursorConsumer3");
        
        // expect 300 messages and not 600
        mock.expectedMessageCount(300);
        // pump 300 records

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        Object firstBody = mock.getExchanges().get(0).getIn().getBody();
        assertTrue(firstBody instanceof DBObject);
        assertEquals(301, ((DBObject) firstBody).get("increasing"));
        // check that the persisted lastVal after stopping the route is 600, newton is the name of the trackingField we are using
        context.stopRoute("tailableCursorConsumer3");
        assertEquals(600, trackingCol.findOne(new BasicDBObject("persistentId", "darwin")).get("newton"));


    }
    
    public void assertAndResetMockEndpoint(MockEndpoint mock) throws Exception {
        mock.assertIsSatisfied();

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