/*
* Copyright (C) 2010-2101 Alibaba Group Holding Limited.
*
* Licensed 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.
*/
package com.alibaba.otter.node.extend.processor;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.math.NumberUtils;
import org.apache.commons.lang.math.RandomUtils;
import com.alibaba.otter.shared.etl.model.EventColumn;
import com.alibaba.otter.shared.etl.model.EventData;
public class TestEventProcessor extends AbstractEventProcessor {
public boolean process(EventData eventData) {
EventColumn belong = getColumn(eventData, "belong_to");
if (belong == null) {
return doProcess(eventData);
}
// 判断规则：
// (belong_to字段是包含4: || visited_idcs是数字并且visited_idcs & 2 >0) &&
// write_source不为空且write_source不包含"OT"字符串且不包含"CIW"字符串)
boolean pass = false;
pass |= StringUtils.contains(belong.getColumnValue(), "4:");
if (!pass) {// 第一个条件不满足，看一下第二个条件，两者是或者关系
EventColumn visited = getColumn(eventData, "visited_idcs");
if (visited == null) {
return doProcess(eventData);
}
pass |= NumberUtils.isDigits(visited.getColumnValue())
&& (Integer.valueOf(visited.getColumnValue()) & 2) > 0;
}
if (pass) {// 第三个条件和前两个条件是与关系，delete类型不判断write_source
// write_source为字符类型
EventColumn writeSource = getColumn(eventData, "write_source");
if (writeSource == null) {
return doProcess(eventData);
} else {
// 继续与操作
if (eventData.getEventType().isDelete() // delete类型直接放过
|| (StringUtils.isNotEmpty(writeSource.getColumnValue()) && !StringUtils.contains(writeSource.getColumnValue(),
"CIW"))) {
return doProcess(eventData);
}
}
}
return false;
}
private boolean doProcess(EventData eventData) {
if (!eventData.getEventType().isDelete()) {
// 缺省值为“OT:时间戳:随机串”.
EventColumn writeSource = getColumn(eventData, "write_source");
if (writeSource != null) {
// 填入otter产生的信息
writeSource.setColumnValue("OT:" + System.currentTimeMillis() + ":" + RandomUtils.nextInt(10000));
}
}
return true;
}
}