/*
 * Copyright 2016-2018 shardingsphere.io.
 * <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 io.shardingsphere.core.jdbc.core;

import com.google.common.eventbus.Subscribe;
import io.shardingsphere.core.constant.ConnectionMode;
import io.shardingsphere.core.constant.DatabaseType;
import io.shardingsphere.core.executor.ExecutorEngine;
import io.shardingsphere.core.metadata.ShardingMetaData;
import io.shardingsphere.core.rule.ShardingRule;
import io.shardingsphere.jdbc.orchestration.internal.eventbus.jdbc.JDBCEventBusEvent;
import lombok.Getter;
import lombok.RequiredArgsConstructor;

import javax.sql.DataSource;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

/**
 * Sharding runtime context.
 * 
 * @author gaohongtao
 * @author panjuan
 */
@RequiredArgsConstructor
@Getter
public final class ShardingContext {
    
    private final Map<String, DataSource> dataSourceMap;
    
    private final ShardingRule shardingRule;
    
    private final DatabaseType databaseType;
    
    private final ExecutorEngine executorEngine;
    
    private final ShardingMetaData metaData;
    
    private final ConnectionMode connectionMode;
    
    private final boolean showSQL;
    
    private List<String> disabledDataSourceNames = new LinkedList<>();
    
    private List<String> circuitBreakerDataSourceNames = new LinkedList<>();
    
    @Subscribe
    public void renewDisabledDataSourceNames(final JDBCEventBusEvent jdbcEventBusEvent) {
        disabledDataSourceNames = jdbcEventBusEvent.getDisabledDataSourceNames();
    }
    
    @Subscribe
    public void renewCircuitBreakerDataSourceNames(final JDBCEventBusEvent jdbcEventBusEvent) {
        circuitBreakerDataSourceNames = jdbcEventBusEvent.getCircuitBreakerDataSource();
    }
}

@@ -1056,16 +1056,111 @@
 sEvent;%0A
+import io.shardingsphere.jdbc.orchestration.internal.jdbc.datasource.CircuitBreakerDataSource;%0A
 import l
@@ -1173,16 +1173,16 @@
 Getter;%0A
-
 import l
@@ -1238,24 +1238,56 @@
 DataSource;%0A
+import java.util.LinkedHashMap;%0A
 import java.
@@ -2325,32 +2325,32 @@
 ventBusEvent) %7B%0A
-
         circuitB
@@ -2428,10 +2428,1023 @@
 ;%0A    %7D%0A
+    %0A    /**%0A     * Get available data source map.%0A     *%0A     * @return available data source map%0A     */%0A    public Map%3CString, DataSource%3E getDataSourceMap() %7B%0A        if (!getCircuitBreakerDataSourceNames().isEmpty()) %7B%0A            return getCircuitBreakerDataSourceMap();%0A        %7D%0A        %0A        if (!getDisabledDataSourceNames().isEmpty()) %7B%0A            return getAvailableDataSourceMap();%0A        %7D%0A        return dataSourceMap;%0A    %7D%0A    %0A    private Map%3CString, DataSource%3E getAvailableDataSourceMap() %7B%0A        Map%3CString, DataSource%3E result = new LinkedHashMap%3C%3E(dataSourceMap);%0A        for (String each : disabledDataSourceNames) %7B%0A            result.remove(each);%0A        %7D%0A        return result;%0A    %7D%0A    %0A    private Map%3CString, DataSource%3E getCircuitBreakerDataSourceMap() %7B%0A        Map%3CString, DataSource%3E result = new LinkedHashMap%3C%3E();%0A        for (String each : dataSourceMap.keySet()) %7B%0A            result.put(each, new CircuitBreakerDataSource());%0A        %7D%0A        return result;%0A    %7D%0A
 %7D%0A

add getAvailableDataSourceMap