com.scudata.ide.spl.etl.element.AInsert 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.common.StringUtils;
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.insert()
 * ??????ǰ׺A??ʾ???
 * 
 * @author Joancy
 *
 */
public class AInsert extends ObjectElement {
	public int k=0;
	public String originalTable;//????Դ?????룬??????Ҳ???????????????Ȳ??룬û????ϱ༭?????Ը?????д?????Լ?д????ʽȥ
	public ArrayList expFields;//?????ֵ?Լ???Ӧ?ֶ?
	
	public boolean n;
	public boolean r;
	public boolean f;
	
	/**
	 * ??ȡ???ڽ???༭?Ĳ?????Ϣ?б?
	 */
	public ParamInfoList getParamInfoList() {
		ParamInfoList paramInfos = new ParamInfoList();
		ParamInfo.setCurrent(AInsert.class, this);

		paramInfos.add(new ParamInfo("k",Consts.INPUT_INTEGER));
		paramInfos.add(new ParamInfo("originalTable",EtlConsts.INPUT_CELLA));
		paramInfos.add(new ParamInfo("expFields",EtlConsts.INPUT_FIELDDEFINE_EXP_FIELD));
		
		String group = "options";
		paramInfos.add(group, new ParamInfo("n", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("r", Consts.INPUT_CHECKBOX));
		paramInfos.add(group, new ParamInfo("f", 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(n){
			options.append("n");
		}
		if(r){
			options.append("r");
		}
		if(f){
			options.append("f");
		}
		return options.toString();
	}
	
	/**
	 * ??ȡ????????SPL????ʽ?ĺ?????
	 */
	public String getFuncName() {
		return "insert";
	}

	/**
	 * ??ȡ????????SPL????ʽ?ĺ?????
	 * ??setFuncBody???溯????Ȼ?????ʽ?ĸ?ֵҲ???ǻ????
	 */
	public String getFuncBody() {
		StringBuffer sb = new StringBuffer();
		sb.append( k );
		if(StringUtils.isValidString(originalTable)){
			sb.append(":");
			sb.append(originalTable);
		}
		
		String buf = getFieldDefineExp2(expFields);
		if(!buf.isEmpty()){
			sb.append(",");
			sb.append( buf );
		}
		return sb.toString();
	}

	/**
	 * ???ú?????
	 * @param funcBody ??????
	 */
	public boolean setFuncBody(String funcBody) {
		StringTokenizer st = new StringTokenizer(funcBody,",");
		String tmp = st.nextToken();
		StringTokenizer header = new StringTokenizer(tmp,":");
		k = Integer.parseInt(header.nextToken());
		if(header.hasMoreTokens()){
			tmp = header.nextToken();
			originalTable = tmp;
		}
		
		if(st.hasMoreTokens()){
			tmp = st.nextToken(";");
			expFields = getFieldDefine2(tmp);
		}
		return true;
	}
}