NBT streams
This commit is contained in:
Jesse Boyd
parent
de9138b85e
commit
b51d41c0ac
@ -16,6 +16,8 @@ import com.boydti.fawe.util.StringMan;
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import com.boydti.fawe.util.TaskManager;
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import com.boydti.fawe.util.WEManager;
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import com.boydti.fawe.util.WESubscriber;
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import com.sk89q.jnbt.NBTInputStream;
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import com.sk89q.jnbt.NBTOutputStream;
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import com.sk89q.worldedit.CuboidClipboard;
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import com.sk89q.worldedit.EditSession;
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import com.sk89q.worldedit.LocalSession;
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@ -366,6 +368,9 @@ public class Fawe {
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// BlockData
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BlockData.inject(); // Temporary fix for 1.9.4
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BundledBlockData.inject(); // Add custom rotation
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// NBT
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NBTInputStream.inject(); // Add actual streaming + Optimizations + New methods
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NBTOutputStream.inject(); // New methods
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try {
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CommandManager.inject(); // Async commands
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PlatformManager.inject(); // Async brushes / tools
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@ -81,6 +81,11 @@ public final class NBTInputStream implements Closeable {
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return new NamedTag(readNamedTagName(type), readTagPayload(type, depth));
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}
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public Tag readTag() throws IOException {
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int type = is.readByte();
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return readTagPayload(type, 0);
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}
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public void readNamedTagLazy(RunnableVal2<String, RunnableVal2> getReader) throws IOException {
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int type = is.readByte();
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String name = readNamedTagName(type);
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@ -397,4 +402,7 @@ public final class NBTInputStream implements Closeable {
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}
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}
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public static Class<?> inject() {
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return NBTInputStream.class;
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}
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}
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304
core/src/main/java/com/sk89q/jnbt/NBTOutputStream.java
Normal file
304
core/src/main/java/com/sk89q/jnbt/NBTOutputStream.java
Normal file
@ -0,0 +1,304 @@
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/*
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* WorldEdit, a Minecraft world manipulation toolkit
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* Copyright (C) sk89q <http://www.sk89q.com>
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* Copyright (C) WorldEdit team and contributors
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.sk89q.jnbt;
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import java.io.Closeable;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.util.List;
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import java.util.Map;
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import static com.google.common.base.Preconditions.checkNotNull;
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/**
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* This class writes <strong>NBT</strong>, or <strong>Named Binary Tag</strong>
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* {@code Tag} objects to an underlying {@code OutputStream}.
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*
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* <p>The NBT format was created by Markus Persson, and the specification may be
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* found at <a href="http://www.minecraft.net/docs/NBT.txt">
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* http://www.minecraft.net/docs/NBT.txt</a>.</p>
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*/
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public final class NBTOutputStream implements Closeable {
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/**
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* The output stream.
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*/
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private final DataOutputStream os;
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/**
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* Creates a new {@code NBTOutputStream}, which will write data to the
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* specified underlying output stream.
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*
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* @param os
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* The output stream.
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* @throws IOException
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* if an I/O error occurs.
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*/
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public NBTOutputStream(OutputStream os) throws IOException {
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this.os = new DataOutputStream(os);
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}
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/**
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* Writes a tag.
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*
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* @param tag
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* The tag to write.
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* @throws IOException
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* if an I/O error occurs.
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*/
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public void writeNamedTag(String name, Tag tag) throws IOException {
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checkNotNull(name);
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checkNotNull(tag);
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int type = NBTUtils.getTypeCode(tag.getClass());
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byte[] nameBytes = name.getBytes(NBTConstants.CHARSET);
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os.writeByte(type);
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os.writeShort(nameBytes.length);
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os.write(nameBytes);
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if (type == NBTConstants.TYPE_END) {
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throw new IOException("Named TAG_End not permitted.");
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}
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writeTagPayload(tag);
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}
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public void writeTag(Tag tag) throws IOException {
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int type = NBTUtils.getTypeCode(tag.getClass());
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os.writeByte(type);
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writeTagPayload(tag);
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}
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/**
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* Writes tag payload.
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*
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* @param tag
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* The tag.
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeTagPayload(Tag tag) throws IOException {
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int type = NBTUtils.getTypeCode(tag.getClass());
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switch (type) {
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case NBTConstants.TYPE_END:
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writeEndTagPayload((EndTag) tag);
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break;
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case NBTConstants.TYPE_BYTE:
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writeByteTagPayload((ByteTag) tag);
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break;
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case NBTConstants.TYPE_SHORT:
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writeShortTagPayload((ShortTag) tag);
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break;
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case NBTConstants.TYPE_INT:
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writeIntTagPayload((IntTag) tag);
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break;
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case NBTConstants.TYPE_LONG:
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writeLongTagPayload((LongTag) tag);
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break;
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case NBTConstants.TYPE_FLOAT:
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writeFloatTagPayload((FloatTag) tag);
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break;
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case NBTConstants.TYPE_DOUBLE:
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writeDoubleTagPayload((DoubleTag) tag);
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break;
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case NBTConstants.TYPE_BYTE_ARRAY:
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writeByteArrayTagPayload((ByteArrayTag) tag);
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break;
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case NBTConstants.TYPE_STRING:
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writeStringTagPayload((StringTag) tag);
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break;
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case NBTConstants.TYPE_LIST:
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writeListTagPayload((ListTag) tag);
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break;
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case NBTConstants.TYPE_COMPOUND:
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writeCompoundTagPayload((CompoundTag) tag);
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break;
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case NBTConstants.TYPE_INT_ARRAY:
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writeIntArrayTagPayload((IntArrayTag) tag);
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break;
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default:
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throw new IOException("Invalid tag type: " + type + ".");
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}
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}
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/**
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* Writes a {@code TAG_Byte} tag.
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*
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* @param tag
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* The tag.
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeByteTagPayload(ByteTag tag) throws IOException {
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os.writeByte(tag.getValue());
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}
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/**
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* Writes a {@code TAG_Byte_Array} tag.
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*
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* @param tag
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* The tag.
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeByteArrayTagPayload(ByteArrayTag tag) throws IOException {
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byte[] bytes = tag.getValue();
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os.writeInt(bytes.length);
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os.write(bytes);
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}
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/**
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* Writes a {@code TAG_Compound} tag.
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*
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* @param tag
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* The tag.
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeCompoundTagPayload(CompoundTag tag) throws IOException {
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for (Map.Entry<String, Tag> entry : tag.getValue().entrySet()) {
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writeNamedTag(entry.getKey(), entry.getValue());
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}
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os.writeByte((byte) 0); // end tag - better way?
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}
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/**
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* Writes a {@code TAG_List} tag.
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*
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* @param tag
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* The tag.
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeListTagPayload(ListTag tag) throws IOException {
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Class<? extends Tag> clazz = tag.getType();
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List<Tag> tags = tag.getValue();
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int size = tags.size();
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os.writeByte(NBTUtils.getTypeCode(clazz));
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os.writeInt(size);
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for (Tag tag1 : tags) {
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writeTagPayload(tag1);
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}
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}
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/**
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* Writes a {@code TAG_String} tag.
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*
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* @param tag
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* The tag.
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeStringTagPayload(StringTag tag) throws IOException {
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byte[] bytes = tag.getValue().getBytes(NBTConstants.CHARSET);
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os.writeShort(bytes.length);
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os.write(bytes);
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}
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/**
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* Writes a {@code TAG_Double} tag.
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*
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* @param tag
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* The tag.
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeDoubleTagPayload(DoubleTag tag) throws IOException {
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os.writeDouble(tag.getValue());
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}
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/**
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* Writes a {@code TAG_Float} tag.
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*
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* @param tag
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* The tag.
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeFloatTagPayload(FloatTag tag) throws IOException {
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os.writeFloat(tag.getValue());
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}
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/**
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* Writes a {@code TAG_Long} tag.
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*
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* @param tag
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* The tag.
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeLongTagPayload(LongTag tag) throws IOException {
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os.writeLong(tag.getValue());
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}
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/**
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* Writes a {@code TAG_Int} tag.
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*
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* @param tag
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* The tag.
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeIntTagPayload(IntTag tag) throws IOException {
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os.writeInt(tag.getValue());
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}
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/**
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* Writes a {@code TAG_Short} tag.
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*
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* @param tag
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* The tag.
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* @throws IOException
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* if an I/O error occurs.
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*/
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private void writeShortTagPayload(ShortTag tag) throws IOException {
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os.writeShort(tag.getValue());
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}
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/**
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* Writes a {@code TAG_Empty} tag.
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*
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* @param tag the tag
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*/
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private void writeEndTagPayload(EndTag tag) {
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/* empty */
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}
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private void writeIntArrayTagPayload(IntArrayTag tag) throws IOException {
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int[] data = tag.getValue();
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os.writeInt(data.length);
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for (int aData : data) {
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os.writeInt(aData);
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}
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}
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@Override
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public void close() throws IOException {
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os.close();
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}
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public static Class<?> inject() {
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return NBTOutputStream.class;
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}
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}
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