/*
* Copyright 1999-2015 dangdang.com.
* <p>
* 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.
* </p>
*/
package com.dangdang.ddframe.rdb.sharding.executor;
import com.dangdang.ddframe.rdb.sharding.executor.event.DMLExecutionEvent;
import com.dangdang.ddframe.rdb.sharding.executor.event.DMLExecutionEventBus;
import com.dangdang.ddframe.rdb.sharding.executor.event.DQLExecutionEvent;
import com.dangdang.ddframe.rdb.sharding.executor.event.DQLExecutionEventBus;
import com.dangdang.ddframe.rdb.sharding.executor.event.EventExecutionType;
import com.dangdang.ddframe.rdb.sharding.executor.wrapper.AbstractExecutorWrapper;
import com.google.common.base.Optional;
import lombok.RequiredArgsConstructor;
import java.sql.SQLException;
import java.util.Collection;
/**
* 消息投递员.
* 负责SQL执行消息的投递
*
* @author gaohongtao
*/
@RequiredArgsConstructor
class EventPostman {
private final Collection<? extends AbstractExecutorWrapper> statementExecutorWrappers;
void postExecutionEvents() {
for (AbstractExecutorWrapper each : statementExecutorWrappers) {
if (each.getDMLExecutionEvent().isPresent()) {
DMLExecutionEventBus.post(each.getDMLExecutionEvent().get());
} else if (each.getDQLExecutionEvent().isPresent()) {
DQLExecutionEventBus.post(each.getDQLExecutionEvent().get());
}
}
}
void postExecutionEventsAfterExecution(final AbstractExecutorWrapper statementExecutorWrapper) {
postExecutionEventsAfterExecution(statementExecutorWrapper, EventExecutionType.EXECUTE_SUCCESS, Optional.<SQLException>absent());
}
void postExecutionEventsAfterExecution(final AbstractExecutorWrapper statementExecutorWrapper, final EventExecutionType eventExecutionType, final Optional<SQLException> exp) {
if (statementExecutorWrapper.getDMLExecutionEvent().isPresent()) {
DMLExecutionEvent event = statementExecutorWrapper.getDMLExecutionEvent().get();
event.setEventExecutionType(eventExecutionType);
event.setExp(exp);
DMLExecutionEventBus.post(event);
} else if (statementExecutorWrapper.getDQLExecutionEvent().isPresent()) {
DQLExecutionEvent event = statementExecutorWrapper.getDQLExecutionEvent().get();
event.setEventExecutionType(eventExecutionType);
event.setExp(exp);
DQLExecutionEventBus.post(event);
}
}
}