package com.zky.pub;

import java.io.Serializable;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Vector;

/**
 * 
 * @author dy
 * 
 */
public class HashFmlBuf implements Serializable {
    private Hashtable hm = new Hashtable();
    private String Key = "";
    private String Value = "";
    private int RowCount = -1;
    private int ResultRowCount = -1;//最终结果行数，自己手工设置

    public Vector keys(int row) {
        Enumeration tmp;
        String tk = "";
        Vector res = new Vector();
        if (row > RowCount || row <= 0)
            return null;
        tmp = hm.keys();
        while (tmp.hasMoreElements()) {
            tk = (String) tmp.nextElement();
            int p = tk.indexOf("_" + String.valueOf(row));
            if (p != -1) {
                res.add(tk.substring(0, p));
            }
        }
        return res;
    }

    private void fdel(String field, int pos) {
        Key = new StringBuffer(field.trim()).append("_").append(
                Integer.toString(pos)).toString();
        hm.remove(Key);
    }

    /**
     * 该方法模拟的tuxedo FML 函数中的 Fchg
     * 
     * @param field
     * @param pos
     * @param value
     */
    public void fchg(String field, int pos, String value) {
        Key = new StringBuffer((field.toUpperCase()).trim()).append("_")
                .append(Integer.toString(pos)).toString();
        hm.put(Key, Common.convertNull(value));
        if (pos >= RowCount) {
            RowCount = pos + 1;
        }
    }

    /**
     * 该方法模拟的tuxedo FML 函数中的 Fget
     * 
     * @param field
     * @param pos
     * @return String
     * @throws FieldNotFoundException
     */
    public String fget(String field, int pos) /* throws FieldNotFoundException */{
        Key = new StringBuffer((field.toUpperCase()).trim()).append("_")
                .append(Integer.toString(pos)).toString();
        Value = (String) hm.get(Key);
        return Value;
    }

    /**
     * 该方法模拟的tuxedo FML 函数中的 Finit
     * 
     */
    public void finit() {
        hm.clear();
    }

    /**
     * 搜索一个域中是否存在某个值
     * 
     * @param field
     * @param value
     * @return -1表示没有搜索到 否则返回该值所在的行数
     */
    public int find(String field, String value) {
        int i;
        field = field.toUpperCase();
        for (i = 0; i < RowCount; i++) {
            Key = new StringBuffer(field.trim()).append("_").append(
                    Integer.toString(i)).toString();
            Value = (String) hm.get(Key);
            if (Value == null) {
                continue;
            }
            if (Value.equals(value)) {
                return i;
            }
        }
        return -1;
    }
    
    public int find(String field) {
        int i;
        int ret = 0;
        for (i = 0; i < RowCount; i++) {
            Key = new StringBuffer(field.trim()).append("_").append(
                    Integer.toString(i)).toString();
            Value = (String) hm.get(Key);
            if (Value == null) {
                ret = 0;
                continue;
            }
            ret = 1;
        }
        return ret;
    }    

    public void setRowCount(int rc) {
        this.RowCount = rc;
    }

    public int getRowCount() {
        return RowCount;
    }
    public void setResultRowCount(int rc) {
        this.ResultRowCount = rc;
    }

    public int getResultRowCount() {
        return ResultRowCount;
    }

    public void add(String train_address, Object query) {
    }
}