List of usage examples for com.mongodb.client.model Filters exists
public static Bson exists(final String fieldName, final boolean exists)
From source file:com.egopulse.querydsl.mongodb.MongodbSerializer.java
License:Apache License
@SuppressWarnings("unchecked") @Override//from w w w .j a v a 2 s . c om public Object visit(Operation<?> expr, Void context) { Operator op = expr.getOperator(); /** * user.firstName.eq("test") * user.addresses.size().eq(20) */ if (op == Ops.EQ) { return handleEqOperation(expr); } /** * user.firstName.ne("test") */ else if (op == Ops.NE) { return Filters.ne(asDBKey(expr, 0), asDBValue(expr, 1)); } /** * user.firstName.isEmpty() */ else if (op == Ops.STRING_IS_EMPTY) { return Filters.eq(asDBKey(expr, 0), new BsonString("")); } /** * user.firstName.eq("test").and(user.lastName.eq("blah")) */ else if (op == Ops.AND) { Bson leftOperation = (Bson) handle(expr.getArg(0)); Bson rightOperation = (Bson) handle(expr.getArg(1)); return Filters.and(leftOperation, rightOperation); } /** * user.firstName.not[Operation] */ else if (op == Ops.NOT) { //Handle the not's child Operation<?> subOperation = (Operation<?>) expr.getArg(0); Operator subOp = subOperation.getOperator(); if (subOp == Ops.IN) { return visit(ExpressionUtils.operation(Boolean.class, Ops.NOT_IN, subOperation.getArg(0), subOperation.getArg(1)), context); } else { Bson arg = (Bson) handle(expr.getArg(0)); return Filters.not(arg); } } /** * user.firstName.eq("test").or(user.firstName.eq("else")) */ else if (op == Ops.OR) { Bson leftOperation = (Bson) handle(expr.getArg(0)); Bson rightOperation = (Bson) handle(expr.getArg(1)); return Filters.or(leftOperation, rightOperation); } /** * Text matching operations */ else if (op == Ops.STARTS_WITH) { return Filters.regex(asDBKey(expr, 0), Pattern.compile("^" + regexValue(expr, 1))); } else if (op == Ops.STARTS_WITH_IC) { return Filters.regex(asDBKey(expr, 0), Pattern.compile("^" + regexValue(expr, 1), Pattern.CASE_INSENSITIVE)); } else if (op == Ops.ENDS_WITH) { return Filters.regex(asDBKey(expr, 0), Pattern.compile(regexValue(expr, 1) + "$")); } else if (op == Ops.ENDS_WITH_IC) { return Filters.regex(asDBKey(expr, 0), Pattern.compile(regexValue(expr, 1) + "$", Pattern.CASE_INSENSITIVE)); } else if (op == Ops.EQ_IGNORE_CASE) { return Filters.regex(asDBKey(expr, 0), Pattern.compile("^" + regexValue(expr, 1) + "$", Pattern.CASE_INSENSITIVE)); } else if (op == Ops.STRING_CONTAINS) { return Filters.regex(asDBKey(expr, 0), Pattern.compile(".*" + regexValue(expr, 1) + ".*")); } else if (op == Ops.STRING_CONTAINS_IC) { return Filters.regex(asDBKey(expr, 0), Pattern.compile(".*" + regexValue(expr, 1) + ".*", Pattern.CASE_INSENSITIVE)); } else if (op == Ops.MATCHES) { return Filters.regex(asDBKey(expr, 0), Pattern.compile(asDBValue(expr, 1).toString())); } else if (op == Ops.MATCHES_IC) { return Filters.regex(asDBKey(expr, 0), Pattern.compile(asDBValue(expr, 1).toString(), Pattern.CASE_INSENSITIVE)); } else if (op == Ops.LIKE) { String regex = ExpressionUtils.likeToRegex((Expression) expr.getArg(1)).toString(); return Filters.regex(asDBKey(expr, 0), Pattern.compile(regex)); } else if (op == Ops.BETWEEN) { return Filters.and(Filters.gte(asDBKey(expr, 0), asDBValue(expr, 1)), Filters.lte(asDBKey(expr, 0), asDBValue(expr, 2))); } else if (op == Ops.IN) { int constIndex = 0; int exprIndex = 1; if (expr.getArg(1) instanceof Constant<?>) { constIndex = 1; exprIndex = 0; } if (Collection.class.isAssignableFrom(expr.getArg(constIndex).getType())) { @SuppressWarnings("unchecked") //guarded by previous check Collection<?> values = ((Constant<? extends Collection<?>>) expr.getArg(constIndex)).getConstant(); return Filters.in(asDBKey(expr, exprIndex), values); } /** * user.firstName.in(user.lastName) */ else { throw new UnsupportedOperationException(); // Path<?> path = (Path<?>) expr.getArg(exprIndex); // Constant<?> constant = (Constant<?>) expr.getArg(constIndex); // return asDBObject(asDBKey(expr, exprIndex), convert(path, constant)); } } else if (op == Ops.NOT_IN) { int constIndex = 0; int exprIndex = 1; if (expr.getArg(1) instanceof Constant<?>) { constIndex = 1; exprIndex = 0; } if (Collection.class.isAssignableFrom(expr.getArg(constIndex).getType())) { @SuppressWarnings("unchecked") //guarded by previous check Collection<?> values = ((Constant<? extends Collection<?>>) expr.getArg(constIndex)).getConstant(); return Filters.nin(asDBKey(expr, exprIndex), values); } else { throw new UnsupportedOperationException(); // Path<?> path = (Path<?>) expr.getArg(exprIndex); // Constant<?> constant = (Constant<?>) expr.getArg(constIndex); // return asDBObject(asDBKey(expr, exprIndex), asDBObject("$ne", convert(path, constant))); } } else if (op == Ops.COL_IS_EMPTY) { String field = asDBKey(expr, 0); return Filters.or(Filters.exists(field, false), Filters.size(field, 0)); } else if (op == Ops.LT) { return Filters.lt(asDBKey(expr, 0), asDBValue(expr, 1)); } else if (op == Ops.GT) { return Filters.gt(asDBKey(expr, 0), asDBValue(expr, 1)); } else if (op == Ops.LOE) { return Filters.lte(asDBKey(expr, 0), asDBValue(expr, 1)); } else if (op == Ops.GOE) { return Filters.gte(asDBKey(expr, 0), asDBValue(expr, 1)); } else if (op == Ops.IS_NULL) { return Filters.exists(asDBKey(expr, 0), false); } else if (op == Ops.IS_NOT_NULL) { return Filters.exists(asDBKey(expr, 0), true); } else if (op == Ops.CONTAINS_KEY) { Path<?> path = (Path<?>) expr.getArg(0); Expression<?> key = expr.getArg(1); return Filters.exists(visit(path, context) + "." + key.toString(), true); } // else if (op == MongodbOps.NEAR) { // return asDBObject(asDBKey(expr, 0), asDBObject("$near", asDBValue(expr, 1))); // // } else if (op == MongodbOps.NEAR_SPHERE) { // return asDBObject(asDBKey(expr, 0), asDBObject("$nearSphere", asDBValue(expr, 1))); // // } // else if (op == MongodbOps.ELEM_MATCH) { // return Filters.elemMatch(asDBKey(expr, 0), asDBValue(expr, 1)); // } throw new UnsupportedOperationException("Illegal operation " + expr); }
From source file:com.px100systems.data.plugin.storage.mongo.FilterQueryBuilder.java
License:Open Source License
@Override public Bson convert(Criteria.isNull predicate) { return Filters.exists(predicate.getMember(), false); }
From source file:io.debezium.connector.mongodb.Replicator.java
License:Apache License
/** * Use the given primary to read the oplog. * // w w w. j a v a 2 s .c o m * @param primary the connection to the replica set's primary node; may not be null */ protected void readOplog(MongoClient primary) { BsonTimestamp oplogStart = source.lastOffsetTimestamp(replicaSet.replicaSetName()); logger.info("Reading oplog for '{}' primary {} starting at {}", replicaSet, primary.getAddress(), oplogStart); // Include none of the cluster-internal operations and only those events since the previous timestamp ... MongoCollection<Document> oplog = primary.getDatabase("local").getCollection("oplog.rs"); Bson filter = Filters.and(Filters.gt("ts", oplogStart), // start just after our last position Filters.exists("fromMigrate", false)); // skip internal movements across shards FindIterable<Document> results = oplog.find(filter).sort(new Document("$natural", 1)) // force forwards collection scan .oplogReplay(true) // tells Mongo to not rely on indexes .noCursorTimeout(true) // don't timeout waiting for events .cursorType(CursorType.TailableAwait); // tail and await new data // Read as much of the oplog as we can ... ServerAddress primaryAddress = primary.getAddress(); try (MongoCursor<Document> cursor = results.iterator()) { while (running.get() && cursor.hasNext()) { if (!handleOplogEvent(primaryAddress, cursor.next())) { // Something happened, and we're supposed to stop reading return; } } } }
From source file:org.nuxeo.directory.mongodb.MongoDBDirectory.java
License:Apache License
@Override public Session getSession() throws DirectoryException { SchemaManager schemaManager = Framework.getService(SchemaManager.class); Schema schema = schemaManager.getSchema(getSchema()); if (schema == null) { throw new DirectoryException(getSchema() + " is not a registered schema"); }/*from w ww . j a v a 2 s.c om*/ schemaFieldMap = new LinkedHashMap<>(); schema.getFields().forEach(f -> schemaFieldMap.put(f.getName().getLocalName(), f)); MongoDBSession session = new MongoDBSession(this); addSession(session); // Initialize counters collection if autoincrement enabled if (descriptor.isAutoincrementIdField() && !session.hasCollection(countersCollectionName)) { Map<String, Object> seq = new HashMap<>(); seq.put(MONGODB_ID, getName()); seq.put(MONGODB_SEQ, 0L); session.getCollection(countersCollectionName).insertOne(MongoDBSerializationHelper.fieldMapToBson(seq)); } if (!initialized) { String policy = descriptor.getCreateTablePolicy(); MongoCollection collection = session.getCollection(getName()); boolean dropCollection = false; boolean loadData = false; switch (policy) { case CREATE_TABLE_POLICY_ALWAYS: dropCollection = true; loadData = true; break; case CREATE_TABLE_POLICY_ON_MISSING_COLUMNS: if (session.hasCollection(getName())) { long totalEntries = collection.count(); boolean missingColumns = schema.getFields().stream().map(f -> f.getName().getLocalName()) .anyMatch(fname -> collection.count(Filters.exists(fname, false)) == totalEntries); if (missingColumns) { dropCollection = true; loadData = true; } } else { loadData = true; } break; default: if (!session.hasCollection(getName())) { loadData = true; } break; } if (dropCollection) { collection.drop(); } if (loadData) { loadData(schema, session); } initialized = true; } return session; }