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/*
 * Copyright © 2016-2017 European Support Limited
 *
 * 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.openecomp.sdc.validation.util;

import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Map;
import org.openecomp.core.utilities.file.FileContentHandler;
import org.openecomp.core.utilities.file.FileUtils;
import org.openecomp.core.validation.api.ValidationManager;
import org.openecomp.core.validation.factory.ValidationManagerFactory;
import org.openecomp.sdc.common.errors.Messages;
import org.openecomp.sdc.common.utils.SdcCommon;
import org.openecomp.sdc.datatypes.error.ErrorLevel;
import org.openecomp.sdc.datatypes.error.ErrorMessage;

public class ValidationManagerUtil {

    private ValidationManagerUtil() {
    }

    /**
     * Handle missing manifest.
     *
     * @param fileContentMap the file content map
     * @param errors         the errors
     */
    public static void handleMissingManifest(FileContentHandler fileContentMap, Map<String, List<ErrorMessage>> errors) throws IOException {
        try (InputStream manifest = fileContentMap.getFileContentAsStream(SdcCommon.MANIFEST_NAME)) {
            if (manifest == null) {
                ErrorMessage.ErrorMessageUtil.addMessage(SdcCommon.MANIFEST_NAME, errors)
                    .add(new ErrorMessage(ErrorLevel.ERROR, Messages.MANIFEST_NOT_EXIST.getErrorMessage()));
            }
        }
    }

    /**
     * Init validation manager validation manager.
     *
     * @param fileContentMap the file content map
     * @return the validation manager
     */
    public static ValidationManager initValidationManager(FileContentHandler fileContentMap) {
        ValidationManager validationManager = ValidationManagerFactory.getInstance().createInterface();
        fileContentMap.getFileList()
            .forEach(fileName -> validationManager.addFile(fileName, FileUtils.toByteArray(fileContentMap.getFileContentAsStream(fileName))));
        return validationManager;
    }
}