/*
 * 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.example.hint.raw.jdbc;

import org.apache.shardingsphere.api.sharding.hint.HintShardingAlgorithm;
import org.apache.shardingsphere.api.sharding.hint.HintShardingValue;

import java.util.Collection;
import java.util.Collections;

public final class ModuloHintShardingAlgorithm implements HintShardingAlgorithm<Long> {
    
    @Override
    public Collection<String> doSharding(final Collection<String> availableTargetNames, final HintShardingValue<Long> shardingValue) {
        for (String each : availableTargetNames) {
            if (each.endsWith(String.valueOf(shardingValue.getValues().iterator().next() % 2))) {
                return Collections.singletonList(each);
            }
        }
        throw new UnsupportedOperationException();
    }
}

/*
 * 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.example.hint.raw.jdbc;

import org.apache.shardingsphere.api.sharding.hint.HintShardingAlgorithm;
import org.apache.shardingsphere.api.sharding.hint.HintShardingValue;

import java.util.ArrayList;
import java.util.Collection;

public final class ModuloHintShardingAlgorithm implements HintShardingAlgorithm<Long> {
    
    @Override
    public Collection<String> doSharding(final Collection<String> availableTargetNames, final HintShardingValue<Long> shardingValue) {
        Collection<String> result = new ArrayList<>();
        for (String each : availableTargetNames) {
            for (Long value : shardingValue.getValues()) {
                if (each.endsWith(String.valueOf(value % 2))) {
                    result.add(each);
                }
            }
        }
        return result;
    }
}

revise ModuloHintShardingAlgorithm.