Examples of com.mongodb.DBCollection

com.mongodb.DBCollection

This class provides a skeleton implementation of a database collection.

A typical invocation sequence is thus

 Mongo mongo = new Mongo( new DBAddress( "localhost", 127017 ) ); DB db = mongo.getDB( "mydb" ); DBCollection collection = db.getCollection( "test" );

@dochub collections

  }


  private void dropAllCollections(DB db) {
    Set<String> collectionNames = db.getCollectionNames();
    for (String name : collectionNames) {
      DBCollection collection = db.getCollection(name);
      try {
        collection.drop();
      } catch (RuntimeException e) {
        // ignore
      }
    }
  }

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  @Test
  public void shouldCreateNewObjectInEmbeddedMongoDb() {


    // Given
    DBCollection col = db.createCollection("testCollection", new BasicDBObject());


    // When
    col.save(new BasicDBObject("testDoc", new Date()));


    // Then
    assertThat(col.getCount()).isEqualTo(1L);
  }

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                final Resource rsrc = this.getResource(resolver, path, info);
                if ( rsrc instanceof MongoDBResource ) {
                    this.deletedResources.add(path);
                    this.changedResources.remove(path);


                    final DBCollection col = this.getCollection(info[0]);
                    final String pattern = "^" + Pattern.quote(info[1]) + "/";


                    final DBObject query = QueryBuilder.start(getPROP_PATH()).regex(Pattern.compile(pattern)).get();
                    final DBCursor cur = col.find(query);
                    while ( cur.hasNext() ) {
                        final DBObject dbObj = cur.next();
                        final String childPath = info[0] + '/' + dbObj.get(getPROP_PATH());
                        this.deletedResources.add(childPath);
                        this.changedResources.remove(childPath);

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        try {
            for(final String deleted : this.deletedResources) {
                final String[] info = this.extractResourceInfo(deleted);


                // check if the collection still exists
                final DBCollection col = this.getCollection(info[0]);
                if ( col != null ) {
                    if ( col.findAndRemove(QueryBuilder.start(getPROP_PATH()).is(info[1]).get()) != null ) {
                        this.context.notifyRemoved(info);
                    }
                }
            }
            for(final MongoDBResource changed : this.changedResources.values()) {


                final DBCollection col = this.context.getDatabase().getCollection(changed.getCollection());
                if ( col != null ) {
                    final String[] info = new String[] {changed.getCollection(),
                            changed.getProperties().get(getPROP_PATH()).toString()};
                    // create or update?
                    if ( changed.getProperties().get(PROP_ID) != null ) {
                        col.update(QueryBuilder.start(getPROP_PATH()).is(changed.getProperties().get(getPROP_PATH())).get(),
                                changed.getProperties());
                        this.context.notifyUpdated(info);
                    } else {
                        // create
                        col.save(changed.getProperties());
                        this.context.notifyUpdated(info);
                    }
                } else {
                    throw new PersistenceException("Unable to create collection " + changed.getCollection(), null, changed.getPath(), null);
                }

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                        throw new UnsupportedOperationException("remove");
                    }


                };
            }
            final DBCollection col = this.getCollection(info[0]);
            if ( col != null ) {
                final String pattern;
                if ( info.length == 1 ) {
                    pattern = "^([^/])*$";
                } else {
                    pattern = "^" + Pattern.quote(info[1]) + "/([^/])*$";
                }


                final DBObject query = QueryBuilder.start(getPROP_PATH()).regex(Pattern.compile(pattern)).get();
                final DBCursor cur = col.find(query).
                        sort(BasicDBObjectBuilder.start(getPROP_PATH(), 1).get());
                return new Iterator<Resource>() {


                    public boolean hasNext() {
                        return cur.hasNext();

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                return new MongoDBCollectionResource(resourceResolver, path);
            }
            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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        {
            return null;
        }
        Iterator<Resource> returnValue = null;
        final String collectionName = query.substring( 0, query.indexOf( ".find(" ) );
        DBCollection col = this.getCollection( collectionName );
        if ( col != null )
        {
            String criteria = query.trim().substring( query.indexOf( ".find(" ) + 6, query.length() - 1 );
            DBObject dbObject = (DBObject) JSON.parse( criteria );
            final DBCursor cur = col.find( dbObject );
            final String rootPath = context.getRootWithSlash();
            
            return new Iterator<Resource>() {


                public boolean hasNext() {

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     * <p>
     * Note that currently only one {@code DBObject} is supported per collection, but this could be expanded into a
     * more general mechanism if required.
     */
    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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     * Builds and returns a mock MongoDB client based on the given configuration.
     */
    public MockMongoClient build() {
      DB database = mock( DB.class );


      DBCollection defaultCollection = mock( DBCollection.class );
      when( database.getCollection( anyString() ) ).thenReturn( defaultCollection );


      for ( Entry<String, DBCollection> collection : collections.entrySet() ) {
        when( database.getCollection( collection.getKey() ) ).thenReturn( collection.getValue() );
      }

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    /**
     * Returns the collection with a given name. This is a Mockito mock object, so verifications can be performed on
     * it.
     */
    public DBCollection getCollection(String collectionName) {
      DBCollection collection = collections.get( collectionName );
      return collection != null ? collection : defaultCollection;
    }

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