Package com.alibaba.rocketmq.client.consumer.store

Examples of com.alibaba.rocketmq.client.consumer.store.OffsetStore

66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
    public long computePullFromWhere(MessageQueue mq) {
        // 如果返回-1，这个队列的rebalance会失败重试，但是不影响其他队列。
        long result = -1;
        final ConsumeFromWhere consumeFromWhere =
                this.defaultMQPushConsumerImpl.getDefaultMQPushConsumer().getConsumeFromWhere();
        final OffsetStore offsetStore = this.defaultMQPushConsumerImpl.getOffsetStore();
        switch (consumeFromWhere) {
        case CONSUME_FROM_LAST_OFFSET_AND_FROM_MIN_WHEN_BOOT_FIRST:
        case CONSUME_FROM_MIN_OFFSET:
        case CONSUME_FROM_MAX_OFFSET:
        case CONSUME_FROM_LAST_OFFSET: {
            long lastOffset = offsetStore.readOffset(mq, ReadOffsetType.READ_FROM_STORE);
            // 第二次启动，根据上次的消费位点开始消费
            if (lastOffset >= 0) {
                result = lastOffset;
            }
            // 第一次启动，没有记录消费位点
            else if (-1 == lastOffset) {
                // 重试队列则从队列头部开始
                if (mq.getTopic().startsWith(MixAll.RETRY_GROUP_TOPIC_PREFIX)) {
                    result = 0L;
                }
                // 正常队列则从队列尾部开始
                else {
                    try {
                        result = this.mQClientFactory.getMQAdminImpl().maxOffset(mq);
                    }
                    catch (MQClientException e) {
                        result = -1;
                    }
                }
            }
            // 其他错误
            else {
                result = -1;
            }
            break;
        }
        case CONSUME_FROM_FIRST_OFFSET: {
            long lastOffset = offsetStore.readOffset(mq, ReadOffsetType.READ_FROM_STORE);
            // 第二次启动，根据上次的消费位点开始消费
            if (lastOffset >= 0) {
                result = lastOffset;
            }
            // 第一次启动，没有记录消费位点
            else if (-1 == lastOffset) {
                result = 0L;
            }
            // 其他错误
            else {
                result = -1;
            }
            break;
        }
        case CONSUME_FROM_TIMESTAMP: {
            long lastOffset = offsetStore.readOffset(mq, ReadOffsetType.READ_FROM_STORE);
            // 第二次启动，根据上次的消费位点开始消费
            if (lastOffset >= 0) {
                result = lastOffset;
            }
            // 第一次启动，没有记录消费为点
View Full Code Here
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
    @Override
    public long computePullFromWhere(MessageQueue mq) {
        long result = -1;
        final ConsumeFromWhere consumeFromWhere =
                this.defaultMQPushConsumerImpl.getDefaultMQPushConsumer().getConsumeFromWhere();
        final OffsetStore offsetStore = this.defaultMQPushConsumerImpl.getOffsetStore();
        switch (consumeFromWhere) {
        case CONSUME_FROM_LAST_OFFSET: {
            long lastOffset = offsetStore.readOffset(mq, ReadOffsetType.READ_FROM_STORE);
            if (lastOffset >= 0) {
                result = lastOffset;
            }
            // 当前订阅组在服务器没有对应的Offset
            // 说明是第一次启动
            else if (-1 == lastOffset) {
                // 如果是重试队列，需要从0开始
                if (mq.getTopic().startsWith(MixAll.RETRY_GROUP_TOPIC_PREFIX)) {
                    result = 0L;
                }
                // 正常队列则从末尾开始
                else {
                    result = Long.MAX_VALUE;
                }
            }
            // 发生其他错误
            else {
                result = -1;
            }
            break;
        }
        case CONSUME_FROM_LAST_OFFSET_AND_FROM_MIN_WHEN_BOOT_FIRST: {
            long lastOffset = offsetStore.readOffset(mq, ReadOffsetType.READ_FROM_STORE);
            if (lastOffset >= 0) {
                result = lastOffset;
            }
            // 当前订阅组在服务器没有对应的Offset
            // 说明是第一次启动
View Full Code Here
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
    public long computePullFromWhere(MessageQueue mq) {
        // 如果返回-1，这个队列的rebalance会失败重试，但是不影响其他队列。
        long result = -1;
        final ConsumeFromWhere consumeFromWhere =
                this.defaultMQPushConsumerImpl.getDefaultMQPushConsumer().getConsumeFromWhere();
        final OffsetStore offsetStore = this.defaultMQPushConsumerImpl.getOffsetStore();
        switch (consumeFromWhere) {
        case CONSUME_FROM_LAST_OFFSET_AND_FROM_MIN_WHEN_BOOT_FIRST:
        case CONSUME_FROM_MIN_OFFSET:
        case CONSUME_FROM_MAX_OFFSET:
        case CONSUME_FROM_LAST_OFFSET: {
            long lastOffset = offsetStore.readOffset(mq, ReadOffsetType.READ_FROM_STORE);
            // 第二次启动，根据上次的消费位点开始消费
            if (lastOffset >= 0) {
                result = lastOffset;
            }
            // 第一次启动，没有记录消费位点
            else if (-1 == lastOffset) {
                // 重试队列则从队列头部开始
                if (mq.getTopic().startsWith(MixAll.RETRY_GROUP_TOPIC_PREFIX)) {
                    result = 0L;
                }
                // 正常队列则从队列尾部开始
                else {
                    try {
                        result = this.mQClientFactory.getMQAdminImpl().maxOffset(mq);
                    }
                    catch (MQClientException e) {
                        result = -1;
                    }
                }
            }
            // 其他错误
            else {
                result = -1;
            }
            break;
        }
        case CONSUME_FROM_FIRST_OFFSET: {
            long lastOffset = offsetStore.readOffset(mq, ReadOffsetType.READ_FROM_STORE);
            // 第二次启动，根据上次的消费位点开始消费
            if (lastOffset >= 0) {
                result = lastOffset;
            }
            // 第一次启动，没有记录消费位点
            else if (-1 == lastOffset) {
                result = 0L;
            }
            // 其他错误
            else {
                result = -1;
            }
            break;
        }
        case CONSUME_FROM_TIMESTAMP: {
            long lastOffset = offsetStore.readOffset(mq, ReadOffsetType.READ_FROM_STORE);
            // 第二次启动，根据上次的消费位点开始消费
            if (lastOffset >= 0) {
                result = lastOffset;
            }
            // 第一次启动，没有记录消费为点
View Full Code Here
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
    public long computePullFromWhere(MessageQueue mq) {
        // 如果返回-1，这个队列的rebalance会失败重试，但是不影响其他队列。
        long result = -1;
        final ConsumeFromWhere consumeFromWhere =
                this.defaultMQPushConsumerImpl.getDefaultMQPushConsumer().getConsumeFromWhere();
        final OffsetStore offsetStore = this.defaultMQPushConsumerImpl.getOffsetStore();
        switch (consumeFromWhere) {
        case CONSUME_FROM_LAST_OFFSET_AND_FROM_MIN_WHEN_BOOT_FIRST:
        case CONSUME_FROM_MIN_OFFSET:
        case CONSUME_FROM_MAX_OFFSET:
        case CONSUME_FROM_LAST_OFFSET: {
            long lastOffset = offsetStore.readOffset(mq, ReadOffsetType.READ_FROM_STORE);
            // 第二次启动，根据上次的消费位点开始消费
            if (lastOffset >= 0) {
                result = lastOffset;
            }
            // 第一次启动，没有记录消费位点
            else if (-1 == lastOffset) {
                // 重试队列则从队列头部开始
                if (mq.getTopic().startsWith(MixAll.RETRY_GROUP_TOPIC_PREFIX)) {
                    result = 0L;
                }
                // 正常队列则从队列尾部开始
                else {
                    try {
                        result = this.mQClientFactory.getMQAdminImpl().maxOffset(mq);
                    }
                    catch (MQClientException e) {
                        result = -1;
                    }
                }
            }
            // 其他错误
            else {
                result = -1;
            }
            break;
        }
        case CONSUME_FROM_FIRST_OFFSET: {
            long lastOffset = offsetStore.readOffset(mq, ReadOffsetType.READ_FROM_STORE);
            // 第二次启动，根据上次的消费位点开始消费
            if (lastOffset >= 0) {
                result = lastOffset;
            }
            // 第一次启动，没有记录消费位点
            else if (-1 == lastOffset) {
                result = 0L;
            }
            // 其他错误
            else {
                result = -1;
            }
            break;
        }
        case CONSUME_FROM_TIMESTAMP: {
            long lastOffset = offsetStore.readOffset(mq, ReadOffsetType.READ_FROM_STORE);
            // 第二次启动，根据上次的消费位点开始消费
            if (lastOffset >= 0) {
                result = lastOffset;
            }
            // 第一次启动，没有记录消费为点
View Full Code Here
TOP

Related Classes of com.alibaba.rocketmq.client.consumer.store.OffsetStore

  • com.alibaba.rocketmq.client.impl.consumer.RebalancePushImpl
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.