oracle.toplink.essentials.internal.weaving.StaticWeaveJAROutputHandler Maven / Gradle / Ivy
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package oracle.toplink.essentials.internal.weaving;
import java.io.IOException;
import java.io.InputStream;
import java.net.URISyntaxException;
import java.util.jar.JarEntry;
import java.util.jar.JarOutputStream;
import java.util.zip.ZipException;
/**
* The class provides a set of methods to pack passing in entries into the sepcified archive file.
* the class JAR output.
*/
public class StaticWeaveJAROutputHandler extends AbstractStaticWeaveOutputHandler{
/**
* Construct an instance of StaticWeaveJAROutputHandler
* @param outputStreamHolder
*/
public StaticWeaveJAROutputHandler(JarOutputStream outputStreamHolder){
super.outputStreamHolder=outputStreamHolder;
}
/**
* Add directory entry into outputstream.
* @param dirPath
* @throws IOException
*/
public void addDirEntry(String dirPath)throws IOException {
try{
JarEntry newEntry = new JarEntry(dirPath);
newEntry.setSize(0);
addEntry(newEntry, null);
}catch(ZipException e){
//ignore duplicate directory entry exceptions.
}
}
/**
* Write entry bytes into target, this method is usually called if class has been tranformed
* @param targetEntry
* @param entryBytes
* @throws IOException
*/
public void addEntry(JarEntry targetEntry,byte[] entryBytes)throws IOException{
outputStreamHolder.putNextEntry(targetEntry);
if(entryBytes!=null){
outputStreamHolder.write(entryBytes);
}
outputStreamHolder.closeEntry();
}
/**
* Write entry into target, this method usually copy original class into target.
* @param jis
* @param entry
* @throws IOException
*/
public void addEntry(InputStream jis,JarEntry entry) throws IOException,URISyntaxException {
outputStreamHolder.putNextEntry(entry);
if(!entry.isDirectory()){
readwriteStreams(jis,outputStreamHolder);
}
outputStreamHolder.closeEntry();
}
}