forked from External/mage
60 lines
1.4 KiB
Java
60 lines
1.4 KiB
Java
package mage.utils;
|
|
|
|
import mage.remote.traffic.ZippedObject;
|
|
import mage.remote.traffic.ZippedObjectImpl;
|
|
|
|
/**
|
|
* Helps to compress and decompress data if needed.
|
|
*
|
|
* @author ayrat
|
|
*/
|
|
public final class CompressUtil {
|
|
|
|
/**
|
|
* Defines should data be compressed or not. True by default. Read from
|
|
* system property:
|
|
*/
|
|
private static boolean compressData = true;
|
|
|
|
/**
|
|
* Defines the system property name to disable any compressing.
|
|
*/
|
|
private static final String NO_COMPRESS_DATA_PROPERTY = "nocompress";
|
|
|
|
static {
|
|
compressData = System.getProperty(NO_COMPRESS_DATA_PROPERTY) == null;
|
|
}
|
|
|
|
/**
|
|
* Hidden constructor
|
|
*/
|
|
private CompressUtil() {
|
|
}
|
|
|
|
/**
|
|
* Decompress data, but only if it was compressed previously return original
|
|
* object otherwise.
|
|
*
|
|
* @param data Data to decompress
|
|
* @return Decompressed object
|
|
*/
|
|
public static Object decompress(Object data) {
|
|
if (data == null || !(data instanceof ZippedObject)) {
|
|
return data;
|
|
}
|
|
return ((ZippedObject) data).unzip();
|
|
}
|
|
|
|
/**
|
|
* Compress data.
|
|
*
|
|
* @param data Data to compress
|
|
* @return Compressed object
|
|
*/
|
|
public static Object compress(Object data) {
|
|
if (data != null && compressData) {
|
|
return new ZippedObjectImpl<>(data);
|
|
}
|
|
return null;
|
|
}
|
|
}
|