/*
 * Copyright (c) 2019, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 * 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 org.wso2.is.data.sync.system.pipeline.transform;

import org.wso2.is.data.sync.system.exception.SyncClientException;
import org.wso2.is.data.sync.system.pipeline.JournalEntry;
import org.wso2.is.data.sync.system.pipeline.PipelineContext;

import java.util.ArrayList;
import java.util.List;

/**
 *
 */
public class ChainDataTransformer implements DataTransformer {

    private List<DataTransformer> dataTransformers = new ArrayList<>();

    @Override
    public List<JournalEntry> transform(List<JournalEntry> journalEntryList, PipelineContext context)
            throws SyncClientException {

        List<JournalEntry> nextResult = journalEntryList;

        for (DataTransformer dataTransformer : dataTransformers) {
            nextResult = dataTransformer.transform(nextResult, context);
        }

        return nextResult;
    }

    public void add(DataTransformer dataTransformer) {

        dataTransformers.add(dataTransformer);
    }

    public void setDataTransformers(List<DataTransformer> dataTransformers) {

        this.dataTransformers = dataTransformers;
    }

    public List<DataTransformer> getDataTransformers() {

        return dataTransformers;
    }
}
