FindCommand.java

package com.alibaba.hsclient.commond;

import java.io.UnsupportedEncodingException;

import com.alibaba.hsclient.Command;
import com.alibaba.hsclient.bean.FilterInfo;
import com.alibaba.hsclient.bean.InInfo;
import com.alibaba.hsclient.bean.LimitInfo;
import com.alibaba.hsclient.util.CompareOperator;
import com.alibaba.hsclient.util.Const;

/**
 * <indexid> <op> <vlen> <v1> ... <vn> [LIM] [IN] [FILTER ...]
 * @author yinghui.huangyh
 *
 */
public class FindCommand implements Command{
	
	private int indexId;
	private CompareOperator operator;
	private String[] fieldValues;
	private LimitInfo limitInfo;
	private InInfo inInfo;
	private FilterInfo[] filterInfos;

	public FindCommand(int indexId, CompareOperator operator, String[] fieldValues,
			LimitInfo limitInfo, InInfo inInfo, FilterInfo[] filterInfos) {
		super();
		this.indexId = indexId;
		this.operator = operator;
		this.fieldValues = fieldValues;
		this.limitInfo = limitInfo;
		this.inInfo = inInfo;
		this.filterInfos = filterInfos;
	}

	public int getIndexId() {
		return indexId;
	}


	public void setIndexId(int indexId) {
		this.indexId = indexId;
	}

	public CompareOperator getOperator() {
		return operator;
	}

	public void setOperator(CompareOperator operator) {
		this.operator = operator;
	}

	public String[] getFieldValues() {
		return fieldValues;
	}


	public void setFieldValues(String[] fieldValues) {
		this.fieldValues = fieldValues;
	}


	public LimitInfo getLimitInfo() {
		return limitInfo;
	}


	public void setLimitInfo(LimitInfo limitInfo) {
		this.limitInfo = limitInfo;
	}


	public InInfo getInInfo() {
		return inInfo;
	}


	public void setInInfo(InInfo inInfo) {
		this.inInfo = inInfo;
	}


	public FilterInfo[] getFilterInfos() {
		return filterInfos;
	}


	public void setFilterInfos(FilterInfo[] filterInfos) {
		this.filterInfos = filterInfos;
	}

	public byte[] toByte(String encoding) throws UnsupportedEncodingException {
		StringBuffer sb = new StringBuffer();
		sb.append(this.getIndexId()).append(Const.TOKEN_SEPARATOR)
		  .append(this.operator.getValue()).append(Const.TOKEN_SEPARATOR)
		  .append(this.fieldValues.length).append(Const.TOKEN_SEPARATOR);
		
		for (String str : fieldValues) {
			
			sb.append(str).append(Const.TOKEN_SEPARATOR);
		}
		
		if (this.limitInfo != null)
		{
			sb.append(this.limitInfo.getLimit()).append(Const.TOKEN_SEPARATOR)
			  .append(this.limitInfo.getOffset()).append(Const.TOKEN_SEPARATOR);
		}
		
		if (this.inInfo != null)
		{
			sb.append(this.inInfo.getInOperator()).append(Const.TOKEN_SEPARATOR)
			  .append(this.inInfo.getiCol()).append(Const.TOKEN_SEPARATOR)
			  .append(this.inInfo.getInValues().length).append(Const.TOKEN_SEPARATOR);
			for (String str : this.inInfo.getInValues())
			{
				sb.append(str).append(Const.TOKEN_SEPARATOR);
			}
		}
		
		if (this.filterInfos != null)
		{
			for (FilterInfo filterInfo : this.filterInfos)
			{
				sb.append(filterInfo.getfType()).append(Const.TOKEN_SEPARATOR)
				.append(filterInfo.getfOp()).append(Const.TOKEN_SEPARATOR)
				.append(filterInfo.getfCol()).append(Const.TOKEN_SEPARATOR)
				.append(filterInfo.getfVal()).append(Const.TOKEN_SEPARATOR);
			}
		}
		sb.deleteCharAt(sb.toString().length() -1);
		sb.append(Const.COMMAND_TERMINATE);
		return sb.toString().getBytes(encoding);
	}

}