Storage.java

/*
 * 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.hive.metastore;

import com.facebook.presto.hive.HiveBucketProperty;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.collect.ImmutableMap;

import javax.annotation.concurrent.Immutable;

import java.util.Map;
import java.util.Optional;

import static java.util.Objects.requireNonNull;

@Immutable
public class Storage
{
    private final StorageFormat storageFormat;
    private final String location;
    private final Optional<HiveBucketProperty> bucketProperty;
    private final boolean sorted;
    private final boolean skewed;
    private final Map<String, String> serdeParameters;

    public Storage(
            @JsonProperty("storageFormat") StorageFormat storageFormat,
            @JsonProperty("location") String location,
            @JsonProperty("bucketProperty") Optional<HiveBucketProperty> bucketProperty,
            @JsonProperty("sorted") boolean sorted,
            @JsonProperty("skewed") boolean skewed,
            @JsonProperty("serdeParameters") Map<String, String> serdeParameters)
    {
        this.storageFormat = requireNonNull(storageFormat, "storageFormat is null");
        this.location = requireNonNull(location, "location is null");
        this.bucketProperty = requireNonNull(bucketProperty, "bucketProperty is null");
        this.sorted = sorted;
        this.skewed = skewed;
        this.serdeParameters = ImmutableMap.copyOf(requireNonNull(serdeParameters, "serdeParameters is null"));
    }

    @JsonProperty
    public StorageFormat getStorageFormat()
    {
        return storageFormat;
    }

    @JsonProperty
    public String getLocation()
    {
        return location;
    }

    @JsonProperty
    public Optional<HiveBucketProperty> getBucketProperty()
    {
        return bucketProperty;
    }

    @JsonProperty
    public boolean isSorted()
    {
        return sorted;
    }

    @JsonProperty
    public boolean isSkewed()
    {
        return skewed;
    }

    @JsonProperty
    public Map<String, String> getSerdeParameters()
    {
        return serdeParameters;
    }

    public static Builder builder()
    {
        return new Builder();
    }

    public static Builder builder(Storage storage)
    {
        return new Builder(storage);
    }

    public static class Builder
    {
        private StorageFormat storageFormat;
        private String location;
        private Optional<HiveBucketProperty> bucketProperty = Optional.empty();
        private boolean sorted = false;
        private boolean skewed = false;
        private Map<String, String> serdeParameters = ImmutableMap.of();

        private Builder()
        {
        }

        private Builder(Storage storage)
        {
            this.storageFormat = storage.storageFormat;
            this.location = storage.location;
            this.bucketProperty = storage.bucketProperty;
            this.sorted = storage.sorted;
            this.skewed = storage.skewed;
            this.serdeParameters = storage.serdeParameters;
        }

        public Builder setStorageFormat(StorageFormat storageFormat)
        {
            this.storageFormat = storageFormat;
            return this;
        }

        public Builder setLocation(String location)
        {
            this.location = location;
            return this;
        }

        public Builder setBucketProperty(Optional<HiveBucketProperty> bucketProperty)
        {
            this.bucketProperty = bucketProperty;
            return this;
        }

        public Builder setSorted(boolean sorted)
        {
            this.sorted = sorted;
            return this;
        }

        public Builder setSkewed(boolean skewed)
        {
            this.skewed = skewed;
            return this;
        }

        public Builder setSerdeParameters(Map<String, String> serdeParameters)
        {
            this.serdeParameters = serdeParameters;
            return this;
        }

        public Storage build()
        {
            return new Storage(storageFormat, location, bucketProperty, sorted, skewed, serdeParameters);
        }
    }
}