MaxLengthConstraint.java

/*
 * Copyright (c) 2014 EMC Corporation
 * All Rights Reserved
 */

package com.emc.storageos.customconfigcontroller;

import java.util.Map;

import com.emc.storageos.customconfigcontroller.exceptions.CustomConfigControllerException;

public class MaxLengthConstraint extends CustomConfigConstraint {

    private static final long serialVersionUID = 1061181519310789725L;
    private Map<String, Integer> maxLengthMap;
    private Integer defaultMaxLength;

    @Override
    public String applyConstraint(String dataField, String systemType) {
        // TODO - Should we handle null dataField?
        int endIndex = getMaxLength(systemType);
        if (dataField.length() > endIndex) {
            return dataField.substring(0, endIndex);
        }
        return dataField;
    }

    @Override
    public void validate(String dataField, String systemType) {
        // TODO - Should we handle null dataField?
        int max = getMaxLength(systemType);
        if (dataField.length() > max) {
            throw CustomConfigControllerException.exceptions.maxLengthConstraintViolated(dataField, systemType, dataField.length(), max,
                    dataField.substring(0, max));
        }
    }

    private int getMaxLength(String systemType) {
        int max = maxLengthMap.get(CustomConfigConstants.DEFAULT_KEY);
        if (maxLengthMap != null && maxLengthMap.containsKey(systemType)) {
            max = maxLengthMap.get(systemType);
        }
        return max;
    }

    public Map<String, Integer> getMaxLengthMap() {
        return maxLengthMap;
    }

    public void setMaxLengthMap(Map<String, Integer> maxLengthMap) {
        this.maxLengthMap = maxLengthMap;
    }

    public Integer getDefaultMaxLength() {
        return defaultMaxLength;
    }

    public void setDefaultMaxLength(Integer defaultMaxLength) {
        this.defaultMaxLength = defaultMaxLength;
    }
}