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package com.sun.enterprise.diagnostics.collect;
import com.sun.logging.LogDomains;
import com.sun.enterprise.diagnostics.DiagnosticException;
import com.sun.enterprise.diagnostics.Data;
import com.sun.enterprise.diagnostics.Defaults;
import com.sun.enterprise.diagnostics.util.DiagnosticServiceHelper;
import java.io.*;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.CheckedInputStream;
import java.util.zip.CRC32;
/**
* Collects check sum information for binaries
* @author Manisha Umbarje
*/
public class ChecksumCollector implements Collector {
private String source;
private String destFolder;
private String destFile;
private BufferedWriter writer;
private WritableData dataObj;
private static final String BIN_FOLDER = File.separator + "bin";
private static final String LIB_FOLDER = File.separator + "lib";
private static final String JAR_EXT = ".jar";
private static final String DLL_EXT = "*.dll";
private static final String SO_EXT = "*.so";
private static Logger logger =
LogDomains.getLogger(LogDomains.ADMIN_LOGGER);
/**
* Creates a new instance of ChecksumCollector
* @param destFolder destination folder in which checksum information
* is copied.
*/
public ChecksumCollector(String source, String destFolder) {
this.destFolder = destFolder;
this.source = source;
dataObj = new WritableDataImpl(source, DataType.CHECKSUM);
}
/**
* Captures check sum information
* @throw DiagnosticException
*/
public Data capture() throws DiagnosticException {
dataObj.addRow(Arrays.asList(new String[]{"Name", "Length", "Checksum"}));
captureChecksum(source + LIB_FOLDER, getFilter());
captureChecksum(source + BIN_FOLDER, null);
return dataObj;
}
/**
* Captures checksum of files specified by the filter
* @param sourceName source folder from where files are copied
* @param filter file name filter
* @throw DiagnosticException
*/
private void captureChecksum(String sourceName, FilenameFilter filter)
throws DiagnosticException {
File fileObj = new File(sourceName);
String[] fileNames = fileObj.list(filter);
if(fileNames != null) {
int length = fileNames.length;
for (int i = 0 ; i < length; i++) {
dataObj.addRow(generateCRC32Checksum(sourceName, fileNames[i]));
}
}
}
/**
* Generates check sum
* @param file name of the file for which checkum is calculated
* @return list containing file name, length and checksum
*/
private List<String> generateCRC32Checksum(String parent, String fileName)
throws DiagnosticException {
try {
// First item being name of file, second - length; third being checksum
String file = parent + File.separator + fileName;
List<String> checksumInfo = new ArrayList(3);
CRC32 crc32 = new CRC32();
int length = 0;
BufferedInputStream fileinputstream = new BufferedInputStream(
new FileInputStream(new File(file)));
for( CheckedInputStream checkedinputstream = new CheckedInputStream(
fileinputstream, crc32); checkedinputstream.read() != -1;)
length++;
long cksum = crc32.getValue();
fileinputstream.close();
fileinputstream = null;
crc32 = null;
checksumInfo.add(fileName);
checksumInfo.add(Integer.toString(length));
checksumInfo.add(Long.toString(cksum));
return checksumInfo;
} catch(Exception e) {
//ignore
logger.log(Level.FINE, "diagnostic-service.compute_checksum_failed"
,new Object[]{fileName, e.getMessage()});
return null;
}
}
/**
* Gets filter which recognizes .jar and .so/.dll files
* @return FilenameFilter
*/
private FilenameFilter getFilter() {
final String[] exts ;
if(isSolaris())
exts = new String[] {JAR_EXT, SO_EXT};
else
exts = new String[] {JAR_EXT, DLL_EXT};
return new FilenameFilter(){
public boolean accept(File dir, String name) {
return name.endsWith(exts[0]) ||
name.endsWith(exts[1]);
}
};
}
private boolean isSolaris() {
return DiagnosticServiceHelper.isSolaris();
}
private void writeToFile(List<String> checksumInfo) throws
DiagnosticException{
if (checksumInfo != null) {
try {
writer.write("\n");
for(String entry : checksumInfo) {
writer.write(entry + "\t");
} //for
}catch(IOException ioe) {
//ignore
}
}//if
}//writeToFile
}