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/*
 * 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.
 */
package com.facebook.presto.spark;

import com.facebook.presto.SystemSessionProperties;
import com.facebook.presto.metadata.SessionPropertyManager;
import com.google.common.collect.Streams;

import javax.inject.Inject;
import javax.inject.Provider;

import static com.google.common.collect.ImmutableList.toImmutableList;
import static java.util.Objects.requireNonNull;

public class PrestoSparkSessionPropertyManagerProvider
        implements Provider
{
    private final SystemSessionProperties systemSessionProperties;
    private final PrestoSparkSessionProperties prestoSparkSessionProperties;

    @Inject
    public PrestoSparkSessionPropertyManagerProvider(SystemSessionProperties systemSessionProperties, PrestoSparkSessionProperties prestoSparkSessionProperties)
    {
        this.systemSessionProperties = requireNonNull(systemSessionProperties, "systemSessionProperties is null");
        this.prestoSparkSessionProperties = requireNonNull(prestoSparkSessionProperties, "prestoSparkSessionProperties is null");
    }

    @Override
    public SessionPropertyManager get()
    {
        return new SessionPropertyManager(Streams.concat(
                systemSessionProperties.getSessionProperties().stream(),
                prestoSparkSessionProperties.getSessionProperties().stream())
                .collect(toImmutableList()));
    }
}