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package spiversioning;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class SPIVersioning {
/**
* alter this to your own environment. The format must match the systems canonical filename form.
*/
static final String sourceRoot = "C:\\Dev3\\SCA\\modules\\";
public static void main(String[] args) throws Throwable {
File root = new File(sourceRoot);
File rootf =root.getAbsoluteFile();
File[] contents = rootf.listFiles();
SPIVersioning hs = new SPIVersioning();
System.out.println("<spifiles>");
for (File file : contents) {
hs.analyseProjectDir(file);
}
System.out.println("</spifiles>");
}
private void analyseProjectDir(File pdir) {
try {
File javaSrc = new File(pdir.getAbsolutePath() + "/src/main/java");
File jsrcdir = javaSrc.getAbsoluteFile();
File[] pkgRoots = jsrcdir.listFiles();
for (File proot : pkgRoots) {
analyzeJavaFiles(proot);
}
} catch (Exception e) {
// TODO: handle exception
}
}
String fileToString (File f) throws java.io.IOException{
StringBuffer sb = new StringBuffer(1000);
BufferedReader reader = new BufferedReader(new FileReader(f));
char[] buf = new char[1024];
int count = 0;
while((count=reader.read(buf)) != -1){
String readData = String.valueOf(buf, 0, count);
sb.append(readData);
buf = new char[1024];
}
reader.close();
return sb.toString();
}
static class PkgDirFilter implements FileFilter {
public boolean accept(File pathname) {
boolean rv = false;
if (pathname.isDirectory()) {
rv = true;
} else if(pathname.getName().endsWith(".java")) {
rv = true;
} else if (pathname.getName().equals("package.html")) {
rv = true;
}
return rv;
}
}
private void analyzeJavaFiles(File proot) throws Exception {
File[] filesOfInterest = proot.listFiles(new PkgDirFilter());
for (File file : filesOfInterest) {
if(file.isDirectory()) {
analyzeJavaFiles(file);
} else if (file.getName().equals("package.html")) {
// TODO decide if this means every java file in this package is implicitly spi
} else {
String fcontents = fileToString(file);
if(fcontents.contains("@tuscany.spi.extension")) {
String digest = md5(file);
String cpath = file.getCanonicalPath();
cpath = cpath.replace(sourceRoot, "");
System.out.println(" <file path=\""+cpath+"\" md5=\"" +digest + "\"/>");
}
}
}
}
private static String md5(File f) {
MessageDigest digest = null;
try {
digest = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
InputStream is = null;
String output = null;
try {
is = new FileInputStream(f);
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
byte[] buffer = new byte[8192];
int read = 0;
try {
while( (read = is.read(buffer)) > 0) {
digest.update(buffer, 0, read);
}
byte[] md5sum = digest.digest();
BigInteger bigInt = new BigInteger(1, md5sum);
output = bigInt.toString(16);
}
catch(IOException e) {
throw new RuntimeException("Unable to process file for MD5", e);
}
finally {
try {
is.close();
}
catch(IOException e) {
throw new RuntimeException("Unable to close input stream for MD5 calculation", e);
}
}
return output;
}
}
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