/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.shardingsphere.core.encrypt;

import com.google.common.base.Optional;
import org.apache.shardingsphere.core.rule.TableRule;
import org.apache.shardingsphere.spi.algorithm.encrypt.ShardingEncryptor;

import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.Map;

/**
 * Sharding encryptor engine.
 *
 * @author panjuan
 */
public final class ShardingEncryptorEngine {
    
    private final Map<String, ShardingEncryptorStrategy> shardingEncryptorStrategies = new LinkedHashMap<>();
    
    public ShardingEncryptorEngine(final Collection<TableRule> tableRules) {
        for (TableRule each : tableRules) {
            if (null != each.getShardingEncryptorStrategy()) {
                shardingEncryptorStrategies.put(each.getLogicTable(), each.getShardingEncryptorStrategy());
            }
        }
    }
    
    /**
     * Get sharding encryptor.
     * 
     * @param logicTableName logic table name
     * @param columnName column name
     * @return optional of sharding encryptor
     */
    public Optional<ShardingEncryptor> getShardingEncryptor(final String logicTableName, final String columnName) {
        if (shardingEncryptorStrategies.keySet().contains(logicTableName) && shardingEncryptorStrategies.get(logicTableName).getColumns().contains(columnName)) {
            return Optional.of(shardingEncryptorStrategies.get(logicTableName).getShardingEncryptor());
        }
        return Optional.absent();
    }
    
    /**
     * Is has sharding encryptor strategy or not.
     * 
     * @param logicTableName logic table name
     * @return sharding encryptor strategy or not
     */
    public boolean isHasShardingEncryptorStrategy(final String logicTableName) {
        return shardingEncryptorStrategies.keySet().contains(logicTableName);
    }
}

@@ -889,62 +889,8 @@
 al;%0A
-import org.apache.shardingsphere.core.rule.TableRule;%0A
 impo
@@ -964,37 +964,8 @@
 r;%0A%0A
-import java.util.Collection;%0A
 impo
@@ -1013,16 +1013,44 @@
 til.Map;
+%0Aimport java.util.Map.Entry;
 %0A%0A/**%0A *
@@ -1313,152 +1313,666 @@
 nal 
-Collection%3CTableRule%3E tableRules) %7B%0A        for (TableRule each : tableRules) %7B%0A            if (null != each.getShardingEncryptorStrategy()) %7B%0A 
+Map%3CString, ShardingEncryptorStrategy%3E shardingEncryptorStrategies) %7B%0A        for (Entry%3CString, ShardingEncryptorStrategy%3E entry : shardingEncryptorStrategies.entrySet()) %7B%0A            if (null != entry.getValue()) %7B%0A                this.shardingEncryptorStrategies.put(entry.getKey(), entry.getValue());%0A            %7D%0A        %7D%0A    %7D%0A    %0A    public ShardingEncryptorEngine(final Map%3CString, ShardingEncryptorStrategy%3E shardingEncryptorStrategies, final ShardingEncryptorStrategy defaultEncryptorStrategy) %7B%0A        for (Entry%3CString, ShardingEncryptorStrategy%3E entry : shardingEncryptorStrategies.entrySet()) %7B%0A            if (null != entry.getValue()) %7B%0A
     
@@ -1982,16 +1982,22 @@
         
+ this.
 sharding
@@ -2025,64 +2025,156 @@
 ut(e
-ach.getLogicTable(), each.getShardingEncryptorStrategy()
+ntry.getKey(), entry.getValue());%0A            %7D else %7B%0A                this.shardingEncryptorStrategies.put(entry.getKey(), defaultEncryptorStrategy
 );%0A 
@@ -2199,32 +2199,37 @@
    %7D%0A    %7D%0A    %0A
+    %0A
     /**%0A     * G

add ShardingEncryptorEngine()