dev 契约锁

P15GEN2\59518

2024-05-29 d4210c7c4b04abde20037ea8aa0f54ef8a2649aa

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package foundation.send.mail;
 
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
 
import foundation.io.FileRepository;
import foundation.server.config.ServerStatus;
import foundation.variant.expression.VariantExpression;
 
public class MailTemplate {
 
    private String fileName;
    private File file;
    private long lastloadTime;
    private VariantExpression content;
    
    
    public MailTemplate(String fileName) {
        this.fileName = fileName;
        this.lastloadTime = 0;
        
        content = new VariantExpression();
        content.setFlag_Variant('$');
    }
    
    public boolean isDirty() {
        //1. 如果已经加载过，且不需要检查配置更新, 不需要重新加载
        if (lastloadTime > 0  && !ServerStatus.isCheckMetaUpdateOnTime()) {
            return false;
        }
        
        //2. 如果文件最后更新时间小于等于加载时间，不需要重新加载
        if (file != null) {
            long now = file.lastModified();
            if (lastloadTime >= now) {
                return false;
            }
        }
        
        //3. 其他情况，需要重新加载
        return true;
    }
 
    public void load() throws Exception {
        File path = FileRepository.getTemplatePath(); 
        file = new File(path, fileName);
        
        if (!file.exists()) {
            throw new Exception("mail template not exists: " + file);
        }
        
        lastloadTime = file.lastModified();
        content.clear();
        
        InputStream inputStream = new FileInputStream(file);
        try {
            InputStreamReader reader = null; BufferedReader bufferedReader = null;
            
            try {
                reader = new InputStreamReader(inputStream, "UTF-8");
                bufferedReader = new BufferedReader(reader);
                
                String line = null;
                while ((line = bufferedReader.readLine()) != null) {
                    content.parseOneLine(line);
                }
            }
            finally {
                if (bufferedReader != null) {
                    try {
                        bufferedReader.close();
                    }
                    catch (Exception e) {
                    }
                }
                if (reader != null) {
                    try {
                        reader.close();
                    }
                    catch (Exception e) {
                    }
                } 
            }
        } 
        finally {
            try {
                inputStream.close();
            }
            catch (Exception e) {
            }            
        }
    }
 
    public VariantExpression getContent() {
        return content;
    }
    
    public String getContentValue() {
        return content.getString();
    }
    
}