/**
* Output the entries to the specified output folder on the file system.
*
* @param outputFolder The target output folder.
* @throws java.io.IOException Write failure.
*/
public void toFileSystem(File outputFolder) throws IOException {
AssertArgument.isNotNull(outputFolder, "outputFolder");
if (outputFolder.isFile()) {
throw new IOException(
"Cannot write Archive entries to '"
+ outputFolder.getAbsolutePath()
+ "'. This is a normal file i.e. not a directory.");
}
if (!outputFolder.exists()) {
outputFolder.mkdirs();
}
Set<Map.Entry<String, File>> entrySet = entries.entrySet();
for (Map.Entry<String, File> entry : entrySet) {
File archEntryFile = entry.getValue();
byte[] fileBytes;
File entryFile = new File(outputFolder, entry.getKey());
if (archEntryFile != null) {
fileBytes = FileUtils.readFile(archEntryFile);
entryFile.getParentFile().mkdirs();
FileUtils.writeFile(fileBytes, entryFile);
} else {
entryFile.mkdirs();
}
}
}
/**
* Get the value of the entry at the specified index in the archive.
*
* @param index The index.
* @return The entry value at that index.
*/
public byte[] getEntryValue(int index) {
Set<Map.Entry<String, File>> entrySet = entries.entrySet();
int i = 0;
for (Map.Entry<String, File> entry : entrySet) {
if (i == index) {
File entryFile = entry.getValue();
if (entryFile != null) {
try {
return FileUtils.readFile(entryFile);
} catch (IOException e) {
throw new IllegalStateException(
"Unexpected error reading Archive file '" + entryFile.getAbsolutePath() + "'.", e);
}
} else {
return null;
}
}
i++;
}
throw new ArrayIndexOutOfBoundsException(index);
}
private void writeEntriesToArchive(ZipOutputStream archiveStream) throws IOException {
File manifestFile = entries.get(JarFile.MANIFEST_NAME);
// Always write the jar manifest as the first entry, if it exists...
if (manifestFile != null) {
byte[] manifest = FileUtils.readFile(manifestFile);
writeEntry(JarFile.MANIFEST_NAME, manifest, archiveStream);
}
Set<Map.Entry<String, File>> entrySet = entries.entrySet();
for (Map.Entry<String, File> entry : entrySet) {
if (!entry.getKey().equals(JarFile.MANIFEST_NAME)) {
File file = entry.getValue();
if (file != null && !file.isDirectory()) {
writeEntry(entry.getKey(), FileUtils.readFile(file), archiveStream);
} else {
writeEntry(entry.getKey(), null, archiveStream);
}
}
}
}
/**
* Get an Archive entries bytes.
*
* @param resName Entry resource name.
* @return The bytes, or null if the entry is not in the Archive.
*/
public byte[] getEntryBytes(String resName) {
File entryFile = getEntry(resName);
if (entryFile != null) {
try {
return FileUtils.readFile(entryFile);
} catch (IOException e) {
throw new IllegalStateException(
"Unexpected error reading Archive file '" + entryFile.getAbsolutePath() + "'.", e);
}
} else {
return null;
}
}
public Archive merge(Archive archive) {
Map<String, File> entriesToMerge = archive.getEntries();
for (Entry<String, File> entry : entriesToMerge.entrySet()) {
File file = entry.getValue();
if (file != null && !file.isDirectory()) {
try {
addEntry(entry.getKey(), FileUtils.readFile(file));
} catch (IOException e) {
throw new IllegalStateException(
"Unexpected error reading Archive file '" + file.getAbsolutePath() + "'.", e);
}
} else {
addEntry(entry.getKey(), (byte[]) null);
}
}
return this;
}
