ProcessLocationConst.java

package com.mycim.valueobject.consts;

import com.mycim.framework.utils.lang.StringUtils;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class ProcessLocationConst {

    private static final String SEPARATOR = " TO ";

    private static final Pattern PATTERN = Pattern.compile("(\\w{1,} TO \\w{1,})");

    private ProcessLocationConst() {
    }

    /**
     * Get the value before the separator {@value SEPARATOR} from ProcessLocation
     *
     * @param processLocation Source value. For example, BE, FE, BE-FE.
     * @return If the format of the value is similar to BE-FE, return BE
     */
    public static String getMoveInProcessLocation(String processLocation) {
        Matcher matcher = PATTERN.matcher(processLocation);

        if (matcher.matches()) {
            return StringUtils.substringBefore(processLocation, SEPARATOR);
        }
        return processLocation;
    }

    /**
     * Get the value after the separator {@value SEPARATOR} from ProcessLocation
     *
     * @param processLocation Source value. For example, BE, FE, BE-FE.
     * @return If the format of the value is similar to BE-FE, return FE
     */
    public static String getMoveOutProcessLocation(String processLocation) {
        Matcher matcher = PATTERN.matcher(processLocation);

        if (matcher.matches()) {
            return StringUtils.substringAfter(processLocation, SEPARATOR);
        }
        return processLocation;
    }

    /**
     * 获取 processLocation 中 存在 TO 的 后半部分，若不存在 TO 返回空串
     * @param processLocation
     * @return
     */
    public static String getAfterProcessLocation(String processLocation) {
        Matcher matcher = PATTERN.matcher(processLocation);

        if (matcher.matches()) {
            return StringUtils.substringAfter(processLocation, SEPARATOR);
        }

        return StringUtils.EMPTY;
    }

}