package com.taobao.top.analysis.node.job;
import java.io.File;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import com.taobao.top.analysis.util.AnalyzerFilenameFilter;
/**
* JobResource.java
*
* @author yunzhan.jtq
*
* @since 2012-2-20 下午01:23:50
*/
public class JobResource {
private static final Log logger = LogFactory.getLog(JobResource.class);
private String job;
private File resource;
private Map<String, String> files;
private long lastLoadTime;
public JobResource(String job, String[] pathes) {
this.job = job;
if(pathes == null || pathes.length == 0)
throw new java.lang.RuntimeException("JobResource path can't be null...");
files = new HashMap<String, String>();
for(String path : pathes) {
this.build(path);
}
lastLoadTime = System.currentTimeMillis();
}
private void build(String path) {
if (path.startsWith("file:"))
resource = new File(path.substring("file:".length()));
else if(path.startsWith("dir:")) {
resource = new File(path.substring("dir:".length()));
if (resource.isDirectory()) {
File[] fs = resource.listFiles(new AnalyzerFilenameFilter(".xml"));
for (File f : fs) {
files.put(f.getName(), f.getName());
}
}
return;
}
else
resource = new File(path);
if (resource.exists()) {
if (!path.startsWith("file:")) {
URL url = Thread.currentThread().getContextClassLoader().getResource(path);
if (url == null)
throw new java.lang.RuntimeException("It is not a validate jobResource..." + path);
else
resource = new File(url.getFile());
}
else
throw new java.lang.RuntimeException("It is not a validate jobResource..." + path);
}
files.put(resource.getName(), resource.getName());
}
public File getResource() {
return resource;
}
/**
* 判断是否被修改
*
* @return
*/
public boolean isModify() {
if (resource.isDirectory()) {
File[] fs = resource.listFiles(new AnalyzerFilenameFilter(".xml"));
if(fs.length != files.size())
return true;
for (File f : fs) {
if ((f.lastModified() > lastLoadTime) || (files.get(f.getName()) == null)) {
logger.info("file: " + f.getName() + " is modify," + "lastloadtime:" + lastLoadTime + ",file time:"
+ f.lastModified());
return true;
}
}
}
else {
if (resource.lastModified() > lastLoadTime) {
return true;
}
}
return false;
}
/**
* 重新载入,如果newPath是null，就直接更新原有目录
*
* @param newPath
*/
@Deprecated
public void reload(String newPath) {
if (newPath != null) {
resource = new File(newPath);
if (!resource.exists() || (resource.exists() && !resource.isDirectory()))
throw new java.lang.RuntimeException("It is not a validate dir..." + newPath);
}
files.clear();
if (resource.isDirectory()) {
File[] fs = resource.listFiles(new AnalyzerFilenameFilter(".xml"));
for (File f : fs) {
files.put(f.getName(), f.getName());
}
}
else {
files.put(resource.getName(), resource.getName());
}
lastLoadTime = System.currentTimeMillis();
}
public final String getJob() {
return job;
}
}