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

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Here is the source code for hydrograph.ui.validators.impl.LookupMappingValidationRule.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 hydrograph.ui.common.util.ParameterUtil;
import hydrograph.ui.datastructure.property.FilterProperties;
import hydrograph.ui.datastructure.property.FixedWidthGridRow;
import hydrograph.ui.datastructure.property.LookupMapProperty;
import hydrograph.ui.datastructure.property.LookupMappingGrid;

import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.apache.commons.lang.StringUtils;

public class LookupMappingValidationRule implements IValidator {

    private static final String INPUT_PORT0_ID = "in0";
    private static final String INPUT_PORT1_ID = "in1";
    private 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) {
        LookupMappingGrid lookupMappingGrid = (LookupMappingGrid) object;
        if (lookupMappingGrid == null) {
            errorMessage = propertyName + " is mandatory";
            return false;
        }
        List<List<FilterProperties>> lookupInputProperties = lookupMappingGrid.getLookupInputProperties();
        List<LookupMapProperty> lookupMapProperties = lookupMappingGrid.getLookupMapProperties();
        if (isJobImported) {
            lookupInputProperties.clear();
            for (Entry<String, List<FixedWidthGridRow>> inputRow : inputSchemaMap.entrySet()) {
                List<FilterProperties> filterPropertiesList = new ArrayList<FilterProperties>();

                for (FixedWidthGridRow row : inputRow.getValue()) {
                    FilterProperties filterProperties = new FilterProperties();
                    filterProperties.setPropertyname(row.getFieldName());
                    filterPropertiesList.add(filterProperties);
                }
                lookupInputProperties.add(filterPropertiesList);
            }

            lookupMappingGrid.setLookupInputProperties(lookupInputProperties);
            isJobImported = false;
        }
        if (lookupInputProperties == null || lookupInputProperties.isEmpty() || lookupInputProperties.size() < 2) {
            errorMessage = "Invalid input for lookup component";
            return false;
        }
        if (lookupMapProperties == null || lookupMapProperties.isEmpty()) {
            errorMessage = "Invalid output from lookup component";
            return false;
        }

        for (List<FilterProperties> input : lookupInputProperties) {
            if (input == null || input.size() == 0) {
                errorMessage = "Input mapping is mandatory";
                return false;
            }
            for (FilterProperties properties : input) {
                if (StringUtils.isBlank(properties.getPropertyname())) {
                    errorMessage = "Input mapping is mandatory";
                    return false;
                }
            }
        }

        for (LookupMapProperty lookupMapProperty : lookupMapProperties) {
            if (StringUtils.isBlank(lookupMapProperty.getSource_Field())
                    || StringUtils.isBlank(lookupMapProperty.getOutput_Field())) {
                errorMessage = "Output names are mandatory";
                return false;
            }
        }

        if (isInputFieldInvalid(getAllInputFieldNames(lookupInputProperties), lookupMapProperties)) {
            errorMessage = "Invalid input fields in lookup mapping";
            return false;
        }

        if (isOutputFieldInvalid(lookupMapProperties)) {
            errorMessage = "Invalid output fields in lookup mapping";
            return false;
        }

        return true;
    }

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

    private List<String> getAllInputFieldNames(List<List<FilterProperties>> lookupInputProperties) {
        List<FilterProperties> in0FieldList = lookupInputProperties.get(0);
        List<FilterProperties> in1FieldList = lookupInputProperties.get(1);

        List<String> inputFieldList = new LinkedList<>();

        for (FilterProperties in0Field : in0FieldList) {
            inputFieldList.add(INPUT_PORT0_ID + "." + in0Field.getPropertyname());
        }

        for (FilterProperties in1Field : in1FieldList) {
            inputFieldList.add(INPUT_PORT1_ID + "." + in1Field.getPropertyname());
        }

        return inputFieldList;
    }

    private boolean isInputFieldInvalid(List<String> allInputFields, List<LookupMapProperty> mappingTableItemList) {
        for (LookupMapProperty mapRow : mappingTableItemList) {
            if (!allInputFields.contains(mapRow.getSource_Field())
                    && !ParameterUtil.isParameter(mapRow.getSource_Field())) {
                return true;
            }
        }
        return false;
    }

    private boolean isOutputFieldInvalid(List<LookupMapProperty> mappingTableItemList) {
        List<String> outputFieldList = new ArrayList<>();
        for (LookupMapProperty mapRow : mappingTableItemList) {
            if (outputFieldList.contains(mapRow.getOutput_Field())) {
                return true;
            } else {
                outputFieldList.add(mapRow.getOutput_Field());
            }
        }
        return false;
    }
}