hydrograph.ui.validators.impl.XPathSchemaGridValidationRule.java Source code

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Here is the source code for hydrograph.ui.validators.impl.XPathSchemaGridValidationRule.java

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/*******************************************************************************
 * Copyright 2017 Capital One Services, LLC and Bitwise, 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 hydrograph.ui.validators.impl;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;

import hydrograph.ui.datastructure.property.FixedWidthGridRow;
import hydrograph.ui.datastructure.property.GridRow;
import hydrograph.ui.datastructure.property.Schema;
import hydrograph.ui.datastructure.property.XPathGridRow;
import hydrograph.ui.logging.factory.LogFactory;

/**
 * Validation Rule class for Xml File Schema grid
 * @author Bitwise
 *
 */
public class XPathSchemaGridValidationRule implements IValidator {
    private static final Logger logger = LogFactory.INSTANCE.getLogger(XPathSchemaGridValidationRule.class);

    private static final String DATA_TYPE_DATE = "java.util.Date";
    private static final String DATA_TYPE_BIG_DECIMAL = "java.math.BigDecimal";
    private static final String SCALE_TYPE_NONE = "none";
    private static final String REGULAR_EXPRESSION_FOR_NUMBER = "\\d+";

    String errorMessage;

    @Override
    public boolean validateMap(Object object, String propertyName,
            Map<String, List<FixedWidthGridRow>> inputSchemaMap) {
        Map<String, Object> propertyMap = (Map<String, Object>) object;
        if (propertyMap != null && !propertyMap.isEmpty()) {
            return validate(propertyMap.get(propertyName), propertyName, inputSchemaMap, false);
        }
        return false;
    }

    @Override
    public boolean validate(Object object, String propertyName, Map<String, List<FixedWidthGridRow>> inputSchemaMap,
            boolean isJobImported) {
        Schema schema = (Schema) object;
        if (schema == null) {
            errorMessage = propertyName + " is mandatory";
            return false;
        } else if (schema.getIsExternal()) {
            errorMessage = propertyName + " is mandatory";
            if (StringUtils.isBlank(schema.getExternalSchemaPath())) {
                return false;
            }
        }
        return validateSchema(schema, propertyName);
    }

    @Override
    public String getErrorMessage() {
        return errorMessage;
    }

    private boolean validateSchema(Schema schema, String propertyName) {
        List<GridRow> gridRowList = (List<GridRow>) schema.getGridRow();
        int precision = 0, scale = 0;

        /*this list is used for checking duplicate names in the grid*/
        List<String> uniqueNamesList = new ArrayList<>();

        if (gridRowList == null || gridRowList.isEmpty()) {
            errorMessage = propertyName + " is mandatory";
            return false;
        }
        Set<String> xPathDulicateCheck = new HashSet<String>();
        for (GridRow gridRow : gridRowList) {
            if (StringUtils.isBlank(gridRow.getFieldName())) {
                errorMessage = "Field name can not be blank";
                return false;
            }

            XPathGridRow xPathGridRow = (XPathGridRow) gridRow;
            if (StringUtils.isBlank(xPathGridRow.getXPath())) {
                errorMessage = "Absolute/Relative Xpath can not be blank";
                return false;
            }
            if (!xPathDulicateCheck.add(xPathGridRow.getAbsolutexPath())) {
                errorMessage = "Absolute/Relative Xpath can not be duplicate";
                return false;
            }
            if (StringUtils.isNotBlank(gridRow.getScale())) {
                try {
                    if (StringUtils.isNotEmpty(gridRow.getPrecision())) {
                        precision = Integer.parseInt(gridRow.getPrecision());
                    }
                } catch (NumberFormatException exception) {
                    logger.debug("Failed to parse the precision ", exception);
                    return false;
                }

                try {
                    scale = Integer.parseInt(gridRow.getScale());
                } catch (NumberFormatException exception) {
                    logger.debug("Failed to parse the scale ", exception);
                    return false;
                }
            }

            if (DATA_TYPE_BIG_DECIMAL.equalsIgnoreCase(gridRow.getDataTypeValue())) {
                if (StringUtils.isBlank(gridRow.getScale()) || scale < 0
                        || !(gridRow.getScale().matches(REGULAR_EXPRESSION_FOR_NUMBER))) {
                    errorMessage = "Scale should be positive integer.";
                    return false;
                }
                try {
                    Integer.parseInt(gridRow.getScale());
                } catch (NumberFormatException exception) {
                    logger.debug("Failed to parse the scale", exception);
                    errorMessage = "Scale must be integer value";
                    return false;
                }
            } else if (DATA_TYPE_DATE.equalsIgnoreCase(gridRow.getDataTypeValue())
                    && StringUtils.isBlank(gridRow.getDateFormat())) {
                errorMessage = "Date format is mandatory";
                return false;
            }

            if (StringUtils.equalsIgnoreCase(DATA_TYPE_BIG_DECIMAL, gridRow.getDataTypeValue())
                    && (StringUtils.isBlank(gridRow.getScaleTypeValue())
                            || StringUtils.equalsIgnoreCase(SCALE_TYPE_NONE, gridRow.getScaleTypeValue()))) {
                errorMessage = "Scale type cannot be blank or none for Big Decimal data type";
                return false;
            }

            if (uniqueNamesList.isEmpty() || !uniqueNamesList.contains(gridRow.getFieldName())) {
                uniqueNamesList.add(gridRow.getFieldName());
            } else {
                errorMessage = "Schema grid must have unique names";
                return false;
            }
        }
        return true;
    }
}