/*
 * 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.strategy.encrypt;

import com.google.common.base.Optional;
import org.apache.shardingsphere.spi.encrypt.ShardingEncryptor;
import org.apache.shardingsphere.spi.encrypt.ShardingQueryAssistedEncryptor;

import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Map.Entry;

/**
 * Sharding encryptor engine.
 *
 * @author panjuan
 */
public final class ShardingEncryptorEngine {
    
    private final Map<String, ShardingEncryptorStrategy> shardingEncryptorStrategies = new LinkedHashMap<>();
    
    public ShardingEncryptorEngine(final Map<String, ShardingEncryptorStrategy> shardingEncryptorStrategies) {
        for (Entry<String, ShardingEncryptorStrategy> entry : shardingEncryptorStrategies.entrySet()) {
            if (null != entry.getValue()) {
                this.shardingEncryptorStrategies.put(entry.getKey(), entry.getValue());
            }
        }
    }
    
    public ShardingEncryptorEngine(final Map<String, ShardingEncryptorStrategy> shardingEncryptorStrategies, final ShardingEncryptorStrategy defaultEncryptorStrategy) {
        for (Entry<String, ShardingEncryptorStrategy> entry : shardingEncryptorStrategies.entrySet()) {
            if (null != entry.getValue()) {
                this.shardingEncryptorStrategies.put(entry.getKey(), entry.getValue());
            } else {
                this.shardingEncryptorStrategies.put(entry.getKey(), defaultEncryptorStrategy);
            }
        }
    }
    
    /**
     * 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 query assisted encryptor or not.
     * 
     * @param logicTableName logic table name
     * @return has sharding query assisted encryptor or not
     */
    public boolean isHasShardingQueryAssistedEncryptor(final String logicTableName) {
        return shardingEncryptorStrategies.keySet().contains(logicTableName) && shardingEncryptorStrategies.get(logicTableName).getShardingEncryptor() instanceof ShardingQueryAssistedEncryptor;
    }
    
    /**
     * Get assisted query column.
     * 
     * @param logicTableName logic table name
     * @param columnName column name
     * @return assisted query column
     */
    public Optional<String> getAssistedQueryColumn(final String logicTableName, final String columnName) {
        if (!shardingEncryptorStrategies.containsKey(logicTableName)) {
            return Optional.absent();
        }
        return shardingEncryptorStrategies.get(logicTableName).getAssistedQueryColumn(columnName);
    }
    
    /**
     * Get assisted query column count.
     * 
     * @param logicTableName logic table name
     * @return assisted query column count
     */
    public Optional<Integer> getAssistedQueryColumnCount(final String logicTableName) {
        if (!shardingEncryptorStrategies.containsKey(logicTableName)) {
            return Optional.absent();
        }
        return Optional.of(shardingEncryptorStrategies.get(logicTableName).getAssistedQueryColumns().size());
    }
}

@@ -894,16 +894,178 @@
 tional;%0A
+import org.apache.shardingsphere.api.config.encryptor.EncryptRuleConfiguration;%0Aimport org.apache.shardingsphere.api.config.encryptor.EncryptorRuleConfiguration;%0A
 import o
@@ -1198,16 +1198,45 @@
 yptor;%0A%0A
+import java.util.Collection;%0A
 import j
@@ -1255,24 +1255,53 @@
 kedHashMap;%0A
+import java.util.LinkedList;%0A
 import java.
@@ -1445,24 +1445,29 @@
 gine %7B%0A    %0A
+    %0A
     private 
@@ -1468,36 +1468,35 @@
 ivate final 
-Map%3CString, 
+Collection%3C
 ShardingEncr
@@ -1550,23 +1550,20 @@
 w Linked
-HashMap
+List
 %3C%3E();%0A  
@@ -1610,660 +1610,156 @@
 nal 
-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
+EncryptRuleConfiguration encryptRuleConfiguration) %7B%0A        for (EncryptorRuleConfiguration each : encryptRuleConfiguration.getEncryptorRuleConfigs
 ()) 
@@ -1768,33 +1768,24 @@
             
-    this.
 shardingEncr
@@ -1804,177 +1804,49 @@
 ies.
-put(entry.getKey(), entry.getValue());%0A            %7D else %7B%0A                this.shardingEncryptorStrategies.put(entry.getKey(), defaultEncryptorStrategy);%0A            %7D
+add(new ShardingEncryptorStrategy(each));
 %0A   

delete invalid ShardingEncryptorEngine()