/*
 * 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.shardingproxy.uilt;

import com.google.common.base.Function;
import com.google.common.collect.Maps;
import io.shardingsphere.core.config.DataSourceConfiguration;
import io.shardingsphere.core.rule.DataSourceParameter;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;

import javax.sql.DataSource;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;

/**
 * Data source parameter converter.
 *
 * @author panjuan
 */
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public class DataSourceConverter {
    
    /**
     * Get data source map.
     *
     * @param dataSourceConfigurationMap data source configuration map
     * @return data source parameter map
     */
    public static Map<String, DataSourceParameter> getDataSourceParameterMap(final Map<String, DataSourceConfiguration> dataSourceConfigurationMap) {
        Map<String, DataSourceParameter> result = new HashMap<>(dataSourceConfigurationMap.size(), 1);
        for (Entry<String, DataSourceConfiguration> entry : dataSourceConfigurationMap.entrySet()) {
            result.put(entry.getKey(), getDataSourceParameter(entry.getValue()));
        }
        return result;
    }
    
    private static DataSourceParameter getDataSourceParameter(final DataSourceConfiguration dataSourceConfiguration) {
        DataSourceParameter result = new DataSourceParameter();
        for (Field each : result.getClass().getDeclaredFields()) {
            try {
                each.setAccessible(true);
                each.set(result, dataSourceConfiguration.getProperties().get(each.getName()));
            } catch (final ReflectiveOperationException ignored) {
            }
        }
        return result;
    }
    
    /**
     * Get data source configuration map.
     *
     * @param dataSourceMap data source map
     * @return data source configuration map
     */
    public static Map<String, DataSourceConfiguration> getDataSourceConfigurationMap(final Map<String, DataSource> dataSourceMap) {
        return Maps.transformValues(dataSourceMap, new Function<DataSource, DataSourceConfiguration>() {
            
            @Override
            public DataSourceConfiguration apply(final DataSource input) {
                return DataSourceConfiguration.getDataSourceConfiguration(input);
            }
        });
    }
}

@@ -1536,164 +1536,210 @@
     
-Map%3CString, DataSourceParameter%3E result = new HashMap%3C%3E(dataSourceConfigurationMap.size(), 1);%0A        for (Entry%3CString, DataSourceConfiguration%3E entry : d
+return Maps.transformValues(dataSourceConfigurationMap, new Function%3CDataSourceConfiguration, DataSourceParameter%3E() %7B%0A        %0A            @Override%0A            public DataSourceParameter apply(final D
 ataS
@@ -1760,22 +1760,14 @@
 tion
-Map.entrySet()
+ input
 ) %7B%0A
@@ -1782,78 +1782,58 @@
     
-result.put(entry.getKey(), getDataSourceParameter(entry.getValue()));%0A
+    return input.createDataSourceParameter();%0A    
     
@@ -1842,37 +1842,26 @@
   %7D%0A        
-return result
+%7D)
 ;%0A    %7D%0A    
@@ -1869,24 +1869,76 @@
     
-private static D
+/**%0A     * Get data source configuration map.%0A     *%0A     * @param d
 ataS
@@ -1955,37 +1955,110 @@
 eter
- getDataS
+Map data s
 ource
-Parameter(final
+ map%0A     * @return data source configuration map%0A     */%0A    public static Map%3CString,
  Dat
@@ -2077,18 +2077,22 @@
 guration
- d
+%3E getD
 ataSourc
@@ -2105,27 +2105,37 @@
 guration
-) %7B%0A       
+Map(final Map%3CString,
  DataSou
@@ -2150,23 +2150,11 @@
 eter
- result = new D
+%3E d
 ataS
@@ -2159,35 +2159,38 @@
 aSourceParameter
-();
+Map) %7B
 %0A        for (Fi
@@ -2186,63 +2186,122 @@
     
-for (Field each : result.getClass().getDeclaredFields()
+return Maps.transformValues(dataSourceParameterMap, new Function%3CdataSourceParameterMap, DataSourceConfiguration%3E(
 ) %7B%0A
@@ -2316,13 +2316,8 @@
     
-try %7B
 %0A   
@@ -2329,199 +2329,183 @@
     
-    each.setAccessible(true);%0A                each.set(result, dataSourceConfiguration.getProperties().get(each.getName()));%0A            %7D catch (final ReflectiveOperationException ignored) %7B
+@Override%0A            public DataSourceConfiguration apply(final DataSourceParameter input) %7B%0A                return DataSourceConfiguration.getDataSourceConfiguration(input);
 %0A   
@@ -2528,30 +2528,9 @@
    %7D
-%0A        return result
+)
 ;%0A  
@@ -2925,36 +2925,24 @@
 ration%3E() %7B%0A
-            
 %0A           

modify getDataSourceParameterMap()