/*
* Copyright 2014 Red Hat, Inc.
*
* Red Hat licenses this file to you under the Apache License, version 2.0
* (the "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
/** @module vertx-kafka-client-js/kafka_consumer */
var utils = require('vertx-js/util/utils');
var KafkaConsumerRecord = require('vertx-kafka-client-js/kafka_consumer_record');
var Vertx = require('vertx-js/vertx');
var ReadStream = require('vertx-js/read_stream');
var io = Packages.io;
var JsonObject = io.vertx.core.json.JsonObject;
var JKafkaConsumer = Java.type('io.vertx.kafka.client.consumer.KafkaConsumer');
var OffsetAndMetadata = Java.type('io.vertx.kafka.client.consumer.OffsetAndMetadata');
var PartitionInfo = Java.type('io.vertx.kafka.client.common.PartitionInfo');
var TopicPartition = Java.type('io.vertx.kafka.client.common.TopicPartition');
/**
Vert.x Kafka consumer.
<p>
@class
*/
var KafkaConsumer = function(j_val, j_arg_0, j_arg_1) {
var j_kafkaConsumer = j_val;
var that = this;
var j_K = typeof j_arg_0 !== 'undefined' ? j_arg_0 : utils.unknown_jtype;
var j_V = typeof j_arg_1 !== 'undefined' ? j_arg_1 : utils.unknown_jtype;
ReadStream.call(this, j_val);
/**
@public
@param handler {function}
@return {KafkaConsumer}
*/
this.exceptionHandler = function(handler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_kafkaConsumer["exceptionHandler(io.vertx.core.Handler)"](function(jVal) {
handler(utils.convReturnThrowable(jVal));
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
@public
@param handler {function}
@return {KafkaConsumer}
*/
this.handler = function(handler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_kafkaConsumer["handler(io.vertx.core.Handler)"](function(jVal) {
handler(utils.convReturnVertxGen(KafkaConsumerRecord, jVal, undefined, undefined));
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Suspend fetching from the requested partitions.
@public
@param topicPartitions {Array.<Object>} topic partition from which suspend fetching
@param completionHandler {function} handler called on operation completed
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.pause = function() {
var __args = arguments;
if (__args.length === 0) {
j_kafkaConsumer["pause()"]();
return that;
} else if (__args.length === 1 && (typeof __args[0] === 'object' && __args[0] != null)) {
j_kafkaConsumer["pause(io.vertx.kafka.client.common.TopicPartition)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null);
return that;
} else if (__args.length === 1 && typeof __args[0] === 'object' && __args[0] instanceof Array) {
j_kafkaConsumer["pause(java.util.Set)"](utils.convParamSetDataObject(__args[0], function(json) { return new TopicPartition(json); }));
return that;
} else if (__args.length === 2 && (typeof __args[0] === 'object' && __args[0] != null) && typeof __args[1] === 'function') {
j_kafkaConsumer["pause(io.vertx.kafka.client.common.TopicPartition,io.vertx.core.Handler)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null, function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else if (__args.length === 2 && typeof __args[0] === 'object' && __args[0] instanceof Array && typeof __args[1] === 'function') {
j_kafkaConsumer["pause(java.util.Set,io.vertx.core.Handler)"](utils.convParamSetDataObject(__args[0], function(json) { return new TopicPartition(json); }), function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Resume specified partitions which have been paused with pause.
@public
@param topicPartitions {Array.<Object>} topic partition from which resume fetching
@param completionHandler {function} handler called on operation completed
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.resume = function() {
var __args = arguments;
if (__args.length === 0) {
j_kafkaConsumer["resume()"]();
return that;
} else if (__args.length === 1 && (typeof __args[0] === 'object' && __args[0] != null)) {
j_kafkaConsumer["resume(io.vertx.kafka.client.common.TopicPartition)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null);
return that;
} else if (__args.length === 1 && typeof __args[0] === 'object' && __args[0] instanceof Array) {
j_kafkaConsumer["resume(java.util.Set)"](utils.convParamSetDataObject(__args[0], function(json) { return new TopicPartition(json); }));
return that;
} else if (__args.length === 2 && (typeof __args[0] === 'object' && __args[0] != null) && typeof __args[1] === 'function') {
j_kafkaConsumer["resume(io.vertx.kafka.client.common.TopicPartition,io.vertx.core.Handler)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null, function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else if (__args.length === 2 && typeof __args[0] === 'object' && __args[0] instanceof Array && typeof __args[1] === 'function') {
j_kafkaConsumer["resume(java.util.Set,io.vertx.core.Handler)"](utils.convParamSetDataObject(__args[0], function(json) { return new TopicPartition(json); }), function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
@public
@param endHandler {function}
@return {KafkaConsumer}
*/
this.endHandler = function(endHandler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_kafkaConsumer["endHandler(io.vertx.core.Handler)"](endHandler);
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Subscribe to the given list of topics to get dynamically assigned partitions.
@public
@param topics {Array.<string>} topics to subscribe to
@param completionHandler {function} handler called on operation completed
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.subscribe = function() {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'string') {
j_kafkaConsumer["subscribe(java.lang.String)"](__args[0]);
return that;
} else if (__args.length === 1 && typeof __args[0] === 'object' && __args[0] instanceof Array) {
j_kafkaConsumer["subscribe(java.util.Set)"](utils.convParamSetBasicOther(__args[0]));
return that;
} else if (__args.length === 2 && typeof __args[0] === 'string' && typeof __args[1] === 'function') {
j_kafkaConsumer["subscribe(java.lang.String,io.vertx.core.Handler)"](__args[0], function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else if (__args.length === 2 && typeof __args[0] === 'object' && __args[0] instanceof Array && typeof __args[1] === 'function') {
j_kafkaConsumer["subscribe(java.util.Set,io.vertx.core.Handler)"](utils.convParamSetBasicOther(__args[0]), function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Manually assign a list of partition to this consumer.
@public
@param topicPartitions {Array.<Object>} partitions which want assigned
@param completionHandler {function} handler called on operation completed
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.assign = function() {
var __args = arguments;
if (__args.length === 1 && (typeof __args[0] === 'object' && __args[0] != null)) {
j_kafkaConsumer["assign(io.vertx.kafka.client.common.TopicPartition)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null);
return that;
} else if (__args.length === 1 && typeof __args[0] === 'object' && __args[0] instanceof Array) {
j_kafkaConsumer["assign(java.util.Set)"](utils.convParamSetDataObject(__args[0], function(json) { return new TopicPartition(json); }));
return that;
} else if (__args.length === 2 && (typeof __args[0] === 'object' && __args[0] != null) && typeof __args[1] === 'function') {
j_kafkaConsumer["assign(io.vertx.kafka.client.common.TopicPartition,io.vertx.core.Handler)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null, function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else if (__args.length === 2 && typeof __args[0] === 'object' && __args[0] instanceof Array && typeof __args[1] === 'function') {
j_kafkaConsumer["assign(java.util.Set,io.vertx.core.Handler)"](utils.convParamSetDataObject(__args[0], function(json) { return new TopicPartition(json); }), function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Get the set of partitions currently assigned to this consumer.
@public
@param handler {function} handler called on operation completed
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.assignment = function(handler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_kafkaConsumer["assignment(io.vertx.core.Handler)"](function(ar) {
if (ar.succeeded()) {
handler(utils.convReturnListSetDataObject(ar.result()), null);
} else {
handler(null, ar.cause());
}
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Unsubscribe from topics currently subscribed with subscribe.
@public
@param completionHandler {function} handler called on operation completed
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.unsubscribe = function() {
var __args = arguments;
if (__args.length === 0) {
j_kafkaConsumer["unsubscribe()"]();
return that;
} else if (__args.length === 1 && typeof __args[0] === 'function') {
j_kafkaConsumer["unsubscribe(io.vertx.core.Handler)"](function(ar) {
if (ar.succeeded()) {
__args[0](null, null);
} else {
__args[0](null, ar.cause());
}
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Get the current subscription.
@public
@param handler {function} handler called on operation completed
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.subscription = function(handler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_kafkaConsumer["subscription(io.vertx.core.Handler)"](function(ar) {
if (ar.succeeded()) {
handler(utils.convReturnSet(ar.result()), null);
} else {
handler(null, ar.cause());
}
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Get the set of partitions that were previously paused by a call to pause(Set).
@public
@param handler {function} handler called on operation completed
*/
this.paused = function(handler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_kafkaConsumer["paused(io.vertx.core.Handler)"](function(ar) {
if (ar.succeeded()) {
handler(utils.convReturnListSetDataObject(ar.result()), null);
} else {
handler(null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Set the handler called when topic partitions are revoked to the consumer
@public
@param handler {function} handler called on revoked topic partitions
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.partitionsRevokedHandler = function(handler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_kafkaConsumer["partitionsRevokedHandler(io.vertx.core.Handler)"](function(jVal) {
handler(utils.convReturnListSetDataObject(jVal));
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Set the handler called when topic partitions are assigned to the consumer
@public
@param handler {function} handler called on assigned topic partitions
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.partitionsAssignedHandler = function(handler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_kafkaConsumer["partitionsAssignedHandler(io.vertx.core.Handler)"](function(jVal) {
handler(utils.convReturnListSetDataObject(jVal));
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Overrides the fetch offsets that the consumer will use on the next poll.
@public
@param topicPartition {Object} topic partition for which seek
@param offset {number} offset to seek inside the topic partition
@param completionHandler {function} handler called on operation completed
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.seek = function() {
var __args = arguments;
if (__args.length === 2 && (typeof __args[0] === 'object' && __args[0] != null) && typeof __args[1] ==='number') {
j_kafkaConsumer["seek(io.vertx.kafka.client.common.TopicPartition,long)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null, __args[1]);
return that;
} else if (__args.length === 3 && (typeof __args[0] === 'object' && __args[0] != null) && typeof __args[1] ==='number' && typeof __args[2] === 'function') {
j_kafkaConsumer["seek(io.vertx.kafka.client.common.TopicPartition,long,io.vertx.core.Handler)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null, __args[1], function(ar) {
if (ar.succeeded()) {
__args[2](null, null);
} else {
__args[2](null, ar.cause());
}
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Seek to the first offset for each of the given partitions.
@public
@param topicPartitions {Array.<Object>} topic partition for which seek
@param completionHandler {function} handler called on operation completed
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.seekToBeginning = function() {
var __args = arguments;
if (__args.length === 1 && (typeof __args[0] === 'object' && __args[0] != null)) {
j_kafkaConsumer["seekToBeginning(io.vertx.kafka.client.common.TopicPartition)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null);
return that;
} else if (__args.length === 1 && typeof __args[0] === 'object' && __args[0] instanceof Array) {
j_kafkaConsumer["seekToBeginning(java.util.Set)"](utils.convParamSetDataObject(__args[0], function(json) { return new TopicPartition(json); }));
return that;
} else if (__args.length === 2 && (typeof __args[0] === 'object' && __args[0] != null) && typeof __args[1] === 'function') {
j_kafkaConsumer["seekToBeginning(io.vertx.kafka.client.common.TopicPartition,io.vertx.core.Handler)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null, function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else if (__args.length === 2 && typeof __args[0] === 'object' && __args[0] instanceof Array && typeof __args[1] === 'function') {
j_kafkaConsumer["seekToBeginning(java.util.Set,io.vertx.core.Handler)"](utils.convParamSetDataObject(__args[0], function(json) { return new TopicPartition(json); }), function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Seek to the last offset for each of the given partitions.
@public
@param topicPartitions {Array.<Object>} topic partition for which seek
@param completionHandler {function} handler called on operation completed
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.seekToEnd = function() {
var __args = arguments;
if (__args.length === 1 && (typeof __args[0] === 'object' && __args[0] != null)) {
j_kafkaConsumer["seekToEnd(io.vertx.kafka.client.common.TopicPartition)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null);
return that;
} else if (__args.length === 1 && typeof __args[0] === 'object' && __args[0] instanceof Array) {
j_kafkaConsumer["seekToEnd(java.util.Set)"](utils.convParamSetDataObject(__args[0], function(json) { return new TopicPartition(json); }));
return that;
} else if (__args.length === 2 && (typeof __args[0] === 'object' && __args[0] != null) && typeof __args[1] === 'function') {
j_kafkaConsumer["seekToEnd(io.vertx.kafka.client.common.TopicPartition,io.vertx.core.Handler)"](__args[0] != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(__args[0]))) : null, function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else if (__args.length === 2 && typeof __args[0] === 'object' && __args[0] instanceof Array && typeof __args[1] === 'function') {
j_kafkaConsumer["seekToEnd(java.util.Set,io.vertx.core.Handler)"](utils.convParamSetDataObject(__args[0], function(json) { return new TopicPartition(json); }), function(ar) {
if (ar.succeeded()) {
__args[1](null, null);
} else {
__args[1](null, ar.cause());
}
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Commit current offsets for all the subscribed list of topics and partition.
@public
@param completionHandler {function} handler called on operation completed
*/
this.commit = function() {
var __args = arguments;
if (__args.length === 0) {
j_kafkaConsumer["commit()"]();
} else if (__args.length === 1 && typeof __args[0] === 'function') {
j_kafkaConsumer["commit(io.vertx.core.Handler)"](function(ar) {
if (ar.succeeded()) {
__args[0](null, null);
} else {
__args[0](null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Get the last committed offset for the given partition (whether the commit happened by this process or another).
@public
@param topicPartition {Object} topic partition for getting last committed offset
@param handler {function} handler called on operation completed
*/
this.committed = function(topicPartition, handler) {
var __args = arguments;
if (__args.length === 2 && (typeof __args[0] === 'object' && __args[0] != null) && typeof __args[1] === 'function') {
j_kafkaConsumer["committed(io.vertx.kafka.client.common.TopicPartition,io.vertx.core.Handler)"](topicPartition != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(topicPartition))) : null, function(ar) {
if (ar.succeeded()) {
handler(utils.convReturnDataObject(ar.result()), null);
} else {
handler(null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Get metadata about the partitions for a given topic.
@public
@param topic {string} topic partition for which getting partitions info
@param handler {function} handler called on operation completed
@return {KafkaConsumer} current KafkaConsumer instance
*/
this.partitionsFor = function(topic, handler) {
var __args = arguments;
if (__args.length === 2 && typeof __args[0] === 'string' && typeof __args[1] === 'function') {
j_kafkaConsumer["partitionsFor(java.lang.String,io.vertx.core.Handler)"](topic, function(ar) {
if (ar.succeeded()) {
handler(utils.convReturnListSetDataObject(ar.result()), null);
} else {
handler(null, ar.cause());
}
});
return that;
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Close the consumer
@public
@param completionHandler {function} handler called on operation completed
*/
this.close = function() {
var __args = arguments;
if (__args.length === 0) {
j_kafkaConsumer["close()"]();
} else if (__args.length === 1 && typeof __args[0] === 'function') {
j_kafkaConsumer["close(io.vertx.core.Handler)"](function(ar) {
if (ar.succeeded()) {
__args[0](null, null);
} else {
__args[0](null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Get the offset of the next record that will be fetched (if a record with that offset exists).
@public
@param partition {Object} The partition to get the position for
@param handler {function} handler called on operation completed
*/
this.position = function(partition, handler) {
var __args = arguments;
if (__args.length === 2 && (typeof __args[0] === 'object' && __args[0] != null) && typeof __args[1] === 'function') {
j_kafkaConsumer["position(io.vertx.kafka.client.common.TopicPartition,io.vertx.core.Handler)"](partition != null ? new TopicPartition(new JsonObject(Java.asJSONCompatible(partition))) : null, function(ar) {
if (ar.succeeded()) {
handler(utils.convReturnLong(ar.result()), null);
} else {
handler(null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
// A reference to the underlying Java delegate
// NOTE! This is an internal API and must not be used in user code.
// If you rely on this property your code is likely to break if we change it / remove it without warning.
this._jdel = j_kafkaConsumer;
};
KafkaConsumer._jclass = utils.getJavaClass("io.vertx.kafka.client.consumer.KafkaConsumer");
KafkaConsumer._jtype = {
accept: function(obj) {
return KafkaConsumer._jclass.isInstance(obj._jdel);
},
wrap: function(jdel) {
var obj = Object.create(KafkaConsumer.prototype, {});
KafkaConsumer.apply(obj, arguments);
return obj;
},
unwrap: function(obj) {
return obj._jdel;
}
};
KafkaConsumer._create = function(jdel) {
var obj = Object.create(KafkaConsumer.prototype, {});
KafkaConsumer.apply(obj, arguments);
return obj;
}
/**
Create a new KafkaConsumer instance
@memberof module:vertx-kafka-client-js/kafka_consumer
@param vertx {Vertx} Vert.x instance to use
@param config {Array.<string>} Kafka consumer configuration
@param keyType {todo} class type for the key deserialization
@param valueType {todo} class type for the value deserialization
@return {KafkaConsumer} an instance of the KafkaConsumer
*/
KafkaConsumer.create = function() {
var __args = arguments;
if (__args.length === 2 && typeof __args[0] === 'object' && __args[0]._jdel && (typeof __args[1] === 'object' && __args[1] != null)) {
return utils.convReturnVertxGen(KafkaConsumer, JKafkaConsumer["create(io.vertx.core.Vertx,java.util.Map)"](__args[0]._jdel, __args[1]), undefined, undefined);
}else if (__args.length === 4 && typeof __args[0] === 'object' && __args[0]._jdel && (typeof __args[1] === 'object' && __args[1] != null) && typeof __args[2] === 'function' && typeof __args[3] === 'function') {
return utils.convReturnVertxGen(KafkaConsumer, JKafkaConsumer["create(io.vertx.core.Vertx,java.util.Map,java.lang.Class,java.lang.Class)"](__args[0]._jdel, __args[1], utils.get_jclass(__args[2]), utils.get_jclass(__args[3])), utils.get_jtype(__args[2]), utils.get_jtype(__args[3]));
} else throw new TypeError('function invoked with invalid arguments');
};
module.exports = KafkaConsumer;