package com.fr.data;

import com.fr.stable.xml.XMLReadable;
import com.fr.stable.xml.XMLableReader;

import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;

public class GetXmlDate {
    // 定义返回值数组  
    private String[] Value = new String[3];
    // 定义查询的name值  
    private String[] Name = null;

    protected String[] readerXMLSource(InputStream in, String[] name)
            throws Exception {
        Name = name;
        InputStreamReader reader = new InputStreamReader(in, "utf-8");
        readXMLSource(reader);
        return Value;
    }

    protected void readXMLSource(Reader reader) throws Exception {
        XMLableReader xmlReader = XMLableReader.createXMLableReader(reader);
        if (xmlReader != null) {
            xmlReader.readXMLObject(new Content());

        }
    }

    private class Content implements XMLReadable {
        public void readXML(XMLableReader reader) {
            if (reader.isChildNode()) {
                if (reader.getTagName().equals("Field")) {
                    Field field = new Field();
                    reader.readXMLObject(field);
                    // 获得name对应的value值  
                    if (Name[0].equals(field.name)) {
                        Value[0] = field.value;
                    } else if (Name[1].equals(field.name)) {
                        Value[1] = field.value;
                    } else if (Name[2].equals(field.name)) {
                        Value[2] = field.value;
                    }
                }
            }
        }
    }

    // 定义每个field的结构  
    private class Field implements XMLReadable {
        private String name;
        private String type;
        private String value;

        public void readXML(XMLableReader reader) {
            if (reader.isChildNode()) {
                String tagName = reader.getTagName();
                if (tagName.equals("Name")) {
                    this.name = reader.getElementValue();
                } else if (tagName.equals("Type")) {
                    this.type = reader.getElementValue();
                } else if (tagName.equals("Value")) {
                    this.value = reader.getElementValue();
                }
            }
        }
    }
}