InstantOnChangeFrontStr.java

/*
 * OpenClinica is distributed under the
 * GNU Lesser General Public License (GNU LGPL).

 * For details see: http://www.openclinica.org/license
 * copyright 2003-2011 Akaza Research
 */
package org.akaza.openclinica.service.crfdata.front;

import org.akaza.openclinica.domain.crfdata.InstantOnChangePairContainer;

import java.io.Serializable;

/**
 * <P>Composited by sets of 3-element set in order : item group oid, item id and one string option.
 * Three elements are chained up by INNER FrontStrDelimiter, so do sets.
 *
 */
//ywang (Aug., 2011)
public class InstantOnChangeFrontStr extends AbstractFrontStr implements Serializable{

    private static final long serialVersionUID = -1799222257393501943L;

    public InstantOnChangeFrontStr() {
        super();
        this.frontStrDelimiter = FrontStrDelimiter.INNER;
    }

    /**
     * Precondition for InstantPairContainer: itemId > 0; option cannot be empty.
     * igOid will be assigned "IG_" if not size > 0.
     */
    public void chainUpFrontStr(InstantOnChangePairContainer instantPair) {
        if(this.frontStr.length()>0) {
            frontStr.append(this.frontStrDelimiter.getCode());
        }
        frontStr.append(innerStr(instantPair.getDestItemGroupOid(),instantPair.getDestItemId(),instantPair.getOptionValue()));
    }
    private String innerStr(String igOid, Integer itemId, String option) {
        if(itemId == null || itemId <=0 || option == null || option.length()<=0) {
            return "";
        } else {
            StringBuffer buf = new StringBuffer(igOid == null || "".equals(igOid)? "IG_" : igOid);
            buf.append(this.frontStrDelimiter.getCode());
                buf.append(itemId);
                buf.append(this.frontStrDelimiter.getCode());
                buf.append(option);
            return buf.toString();
        }
    }
}