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/*
 * Copyright (c) 2013-2017 Cinchapi Inc.
 *
 * 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.cinchapi.concourse;

import java.util.Map;
import java.util.Set;

import com.cinchapi.concourse.thrift.TObject;
import com.cinchapi.concourse.util.Conversions;
import com.cinchapi.concourse.util.PrettyLinkedTableMap;
import com.cinchapi.concourse.util.Transformers;

/**
 * A utility class for transforming Thrift results to Java results.
 * 
 * @author Jeff Nelson
 */
final class Thrift {

    /**
     * Transform the {@code thrift} result and place the objects into the
     * {@code java} typed collection.
     * 
     * @param thrift the raw results from Thrift
     * @param java the collection for the java results
     * @return a java result set
     */
    public static  Map> transformRecordsValues(
            Map> thrift, Map> java) {
        thrift.forEach((record, values) -> {
            java.put(record, Transformers.transformSetLazily(values,
                    Conversions. thriftToJavaCasted()));
        });
        return java;
    }

    /**
     * Transform the {@code thrift} results and place the objects into a pretty
     * java typed collection.
     * 
     * @param thrift the raw results from Thrift
     * @return a pretty java result set
     */
    public static  Map>> transformRecordsKeysValues(
            Map>> thrift) {
        Map>> java = PrettyLinkedTableMap
                .newPrettyLinkedTableMap("Record");
        return transformRecordsKeysValues(thrift, java);
    }

    /**
     * Transform the {@code thrift} result and place the objects into the
     * {@code java} typed collection.
     * 
     * @param thrift the raw results from Thrift
     * @param java the collection for the java results
     * @return a java result set
     */
    public static  Map>> transformRecordsKeysValues(
            Map>> thrift,
            Map>> java) {
        thrift.forEach((record, data) -> {
            java.put(record,
                    Transformers.transformMapSet(data,
                            Conversions. none(),
                            Conversions. thriftToJavaCasted()));
        });
        return java;
    }

}