ReplicatedPermissionsContainer.java
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/*
* This file is part of LiteLoader.
* Copyright (C) 2012-16 Adam Mummery-Smith
* All Rights Reserved.
*/
package net.eq2online.permissions;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Collection;
import java.util.Set;
import java.util.TreeSet;
import net.minecraft.network.PacketBuffer;
/**
* Serializable container object
*
* @author Adam Mummery-Smith
*/
public class ReplicatedPermissionsContainer implements Serializable
{
/**
* Serial version UID to suppoer Serializable interface
*/
private static final long serialVersionUID = -764940324881984960L;
/**
* Mod name
*/
public String modName = "all";
/**
* Mod version
*/
public Float modVersion = 0.0F;
/**
* List of permissions to replicate, prepend "-" for a negated permission
* and "+" for a granted permission.
*/
public Set<String> permissions = new TreeSet<String>();
/**
* Amount of time in seconds that the client will trust these permissions
* for before requesting an update.
*/
public long remoteCacheTimeSeconds = 600L; // 10 minutes
public static final String CHANNEL = "PERMISSIONSREPL";
public ReplicatedPermissionsContainer()
{
}
public ReplicatedPermissionsContainer(String modName, Float modVersion, Collection<String> permissions)
{
this.modName = modName;
this.modVersion = modVersion;
this.permissions.addAll(permissions);
}
/**
* Add all of the listed permissions to this container
*
* @param permissions
*/
public void addAll(Collection<String> permissions)
{
this.permissions.addAll(permissions);
}
/**
* Check and correct
*/
public void sanitise()
{
if (this.modName == null || this.modName.length() < 1) this.modName = "all";
if (this.modVersion == null || this.modVersion < 0.0F) this.modVersion = 0.0F;
if (this.remoteCacheTimeSeconds < 0) this.remoteCacheTimeSeconds = 600L;
}
/**
* Serialise this container to a byte array for transmission to a remote
* host.
*/
public byte[] getBytes()
{
try
{
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
new ObjectOutputStream(byteStream).writeObject(this);
return byteStream.toByteArray();
}
catch (IOException e) {}
return new byte[0];
}
/**
* Deserialises a replicated permissions container from a byte array
*
* @param data Byte array containing the serialised data
* @return new container or null if deserialisation failed
*/
public static ReplicatedPermissionsContainer fromPacketBuffer(PacketBuffer data)
{
try
{
int readableBytes = data.readableBytes();
if (readableBytes == 0) return null;
byte[] payload = new byte[readableBytes];
data.readBytes(payload);
ObjectInputStream inputStream = new ObjectInputStream(new ByteArrayInputStream(payload));
ReplicatedPermissionsContainer object = (ReplicatedPermissionsContainer)inputStream.readObject();
return object;
}
catch (IOException e)
{
// Don't care
}
catch (ClassNotFoundException e)
{
// Don't care
}
catch (ClassCastException e)
{
// Don't care
}
return null;
}
}