/*
* 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.canal.extend.communication;
import com.alibaba.otter.canal.common.CanalException;
import com.alibaba.otter.canal.instance.manager.model.Canal;
import com.alibaba.otter.shared.communication.model.canal.FindCanalEvent;
import com.alibaba.otter.shared.communication.model.canal.FindFilterEvent;
/**
* 对应canal的配置
*
* @author jianghang 2012-7-4 下午03:09:17
* @version 4.1.0
*/
public class CanalConfigClient {
private CanalCommmunicationClient delegate;
/**
* 根据对应的destinantion查询Canal信息
*/
public Canal findCanal(String destination) {
FindCanalEvent event = new FindCanalEvent();
event.setDestination(destination);
try {
Object obj = delegate.callManager(event);
if (obj != null && obj instanceof Canal) {
return (Canal) obj;
} else {
throw new CanalException("No Such Canal by [" + destination + "]");
}
} catch (Exception e) {
throw new CanalException("call_manager_error", e);
}
}
/**
* 根据对应的destinantion查询filter信息
*/
public String findFilter(String destination) {
FindFilterEvent event = new FindFilterEvent();
event.setDestination(destination);
try {
Object obj = delegate.callManager(event);
if (obj != null && obj instanceof String) {
return (String) obj;
} else {
throw new CanalException("No Such Canal by [" + destination + "]");
}
} catch (Exception e) {
throw new CanalException("call_manager_error", e);
}
}
// ================== setter / getter ===============
public void setDelegate(CanalCommmunicationClient delegate) {
this.delegate = delegate;
}
}