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2004-09-29 jrandom

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* Always wipe the Jetty work directory on startup, so that web updates
      are reflected immediately (Jetty does not honor the cache across
      multiple executions)
in addition, refactor various file ops out of the DataHelper into FileUtil
This commit is contained in:
jrandom
2004-09-29 19:34:02 +00:00
committed by zzz
parent 774231f347
commit 010b285e67
7 changed files with 196 additions and 100 deletions
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core/java/src/net/i2p/data/DataHelper.java
+2 -93
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@@ -12,27 +12,23 @@ package net.i2p.data;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Date;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
import java.util.TreeMap;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import net.i2p.util.OrderedProperties;
@@ -640,91 +636,4 @@ public class DataHelper {
return rv;
}
/**
* Read in the last few lines of a (newline delimited) textfile, or null if
* the file doesn't exist.
*
*/
public static String readTextFile(String filename, int maxNumLines) {
File f = new File(filename);
if (!f.exists()) return null;
FileInputStream fis = null;
try {
fis = new FileInputStream(f);
BufferedReader in = new BufferedReader(new InputStreamReader(fis));
List lines = new ArrayList(maxNumLines);
String line = null;
while ( (line = in.readLine()) != null) {
lines.add(line);
while (lines.size() > maxNumLines)
lines.remove(0);
}
StringBuffer buf = new StringBuffer(lines.size() * 80);
for (int i = 0; i < lines.size(); i++)
buf.append((String)lines.get(i)).append('\n');
return buf.toString();
} catch (IOException ioe) {
return null;
} finally {
if (fis != null) try { fis.close(); } catch (IOException ioe) {}
}
}
public static boolean extractZip(File zipfile, File targetDir) {
try {
byte buf[] = new byte[16*1024];
ZipFile zip = new ZipFile(zipfile);
Enumeration entries = zip.entries();
while (entries.hasMoreElements()) {
ZipEntry entry = (ZipEntry)entries.nextElement();
if (entry.getName().indexOf("..") != -1) {
System.err.println("ERROR: Refusing to extract a zip entry with '..' in it [" + entry.getName() + "]");
return false;
}
File target = new File(targetDir, entry.getName());
File parent = target.getParentFile();
if ( (parent != null) && (!parent.exists()) ) {
boolean parentsOk = parent.mkdirs();
if (!parentsOk) {
System.err.println("ERROR: Unable to create the parent dir for " + entry.getName() + ": [" + parent.getAbsolutePath() + "]");
return false;
}
}
if (entry.isDirectory()) {
if (!target.exists()) {
boolean created = target.mkdirs();
if (!created) {
System.err.println("ERROR: Unable to create the directory [" + entry.getName() + "]");
return false;
} else {
System.err.println("INFO: Creating directory [" + entry.getName() + "]");
}
}
} else {
try {
InputStream in = zip.getInputStream(entry);
FileOutputStream fos = new FileOutputStream(target);
int read = 0;
while ( (read = in.read(buf)) != -1) {
fos.write(buf, 0, read);
}
fos.close();
in.close();
System.err.println("INFO: File [" + entry.getName() + "] extracted");
} catch (IOException ioe) {
System.err.println("ERROR: Error extracting the zip entry (" + entry.getName() + "]");
ioe.printStackTrace();
return false;
}
}
}
zip.close();
return true;
} catch (IOException ioe) {
System.err.println("ERROR: Unable to extract the zip file");
ioe.printStackTrace();
return false;
}
}
}