com.scudata.ide.spl.etl.element.AGroups Maven / Gradle / Ivy

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SPL(Structured Process Language) A programming language specially for structured data computing.
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package com.scudata.ide.spl.etl.element;

import java.util.ArrayList;
import java.util.StringTokenizer;

import com.scudata.chart.Consts;
import com.scudata.ide.spl.etl.EtlConsts;
import com.scudata.ide.spl.etl.FieldDefine;
import com.scudata.ide.spl.etl.ObjectElement;
import com.scudata.ide.spl.etl.ParamInfo;
import com.scudata.ide.spl.etl.ParamInfoList;

/**
 * ?????????༭ A.groups()
 * ??????ǰ׺A??ʾ???
 * 
 * @author Joancy
 *
 */
public class AGroups extends ObjectElement {
	public ArrayList groupExps;//???????ʽ
	public ArrayList aggregateExps;//?ۺϱ???ʽ
	
	public boolean o;
	public boolean n;
	public boolean u;
	public boolean i;
	public boolean m;
	public boolean zero;
	public boolean h;
	
	/**
	 * ??ȡ???ڽ???༭?Ĳ?????Ϣ?б?
	 */
	public ParamInfoList getParamInfoList() {
		ParamInfoList paramInfos = new ParamInfoList();
		ParamInfo.setCurrent(AGroups.class, this);
		paramInfos.add(new ParamInfo("groupExps",EtlConsts.INPUT_FIELDDEFINE_EXP_FIELD));
		paramInfos.add(new ParamInfo("aggregateExps",EtlConsts.INPUT_FIELDDEFINE_EXP_FIELD,true));
		
		String group = "options";
		paramInfos.add(group, new ParamInfo("o", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("n", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("u", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("i", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("m", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("zero", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("h", Consts.INPUT_CHECKBOX));

		return paramInfos;
	}


	/**
	 * ??ȡ??????
	 * ???͵ĳ???????Ϊ
	 * EtlConsts.TYPE_XXX
	 * @return ǰ׺A??ͷ?ĺ???????????EtlConsts.TYPE_SEQUENCE
	 */
	public byte getParentType() {
		return EtlConsts.TYPE_SEQUENCE;
	}

	/**
	 * ??ȡ?ú????ķ???????
	 * @return EtlConsts.TYPE_SEQUENCE
	 */
	public byte getReturnType() {
		return EtlConsts.TYPE_SEQUENCE;
	}

	/**
	 * ??ȡ????????SPL????ʽ??ѡ?
	 */
	public String optionString(){
		StringBuffer options = new StringBuffer();
		if(o){
			options.append("o");
		}
		if(n && !o){//o n????
			options.append("n");
		}
		if(u && !(o || n)){//??o,n????
			options.append("u");
		}
		if(i){
			options.append("i");
		}
		if(m && !(o || i)){//??o,i????
			options.append("m");
		}
		if(zero){
			options.append("0");
		}
		if(h){
			options.append("h");
		}
		return options.toString();
	}
	
	/**
	 * ??ȡ????????SPL????ʽ?ĺ?????
	 */
	public String getFuncName() {
		return "groups";
	}
	
	/**
	 * ??ȡ????????SPL????ʽ?ĺ?????
	 * ??setFuncBody???溯????Ȼ?????ʽ?ĸ?ֵҲ???ǻ????
	 */
	public String getFuncBody() {
		StringBuffer sb = new StringBuffer();
		sb.append( getFieldDefineExp(groupExps) );
		String aggregates = getFieldDefineExp(aggregateExps);
		if(!aggregates.isEmpty()){
			sb.append(";");
			sb.append(aggregates);
		}
		return sb.toString();
	}

	/**
	 * ???ú?????
	 * @param funcBody ??????
	 */
	public boolean setFuncBody(String funcBody) {
		StringTokenizer st = new StringTokenizer(funcBody,";");
		String tmp = st.nextToken();
		groupExps = getFieldDefine(tmp);
		if(st.hasMoreTokens()){
			tmp = st.nextToken();
			aggregateExps = getFieldDefine(tmp);
		}
		return true;
	}

}