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Fix nbt

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This commit is contained in:
Daniel Mills 2021-08-04 22:00:51 -04:00
parent 2f5dd470d2
commit 14af19873c
17 changed files with 1446 additions and 0 deletions
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67
src/main/java/com/volmit/iris/util/oldnbt/ByteArrayTag.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
/**
* The <code>TAG_Byte_Array</code> tag.
*
* @author Graham Edgecombe
*/
public final class ByteArrayTag extends Tag {
/**
* The value.
*/
private final byte[] value;
/**
* Creates the tag.
*
* @param name The name.
* @param value The value.
*/
public ByteArrayTag(String name, byte[] value) {
super(name);
this.value = value;
}
@Override
public byte[] getValue() {
return value;
}
@Override
public String toString() {
StringBuilder hex = new StringBuilder();
for (byte b : value) {
String hexDigits = Integer.toHexString(b).toUpperCase();
if (hexDigits.length() == 1) {
hex.append("0");
}
hex.append(hexDigits).append(" ");
}
String name = getName();
String append = "";
if (name != null && !name.equals("")) {
append = "(\"" + this.getName() + "\")";
}
return "TAG_Byte_Array" + append + ": " + hex;
}
}

59
src/main/java/com/volmit/iris/util/oldnbt/ByteTag.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
/**
* The <code>TAG_Byte</code> tag.
*
* @author Graham Edgecombe
*/
public final class ByteTag extends Tag {
/**
* The value.
*/
private final byte value;
/**
* Creates the tag.
*
* @param name The name.
* @param value The value.
*/
public ByteTag(String name, byte value) {
super(name);
this.value = value;
}
@Override
public Byte getValue() {
return value;
}
@Override
public String toString() {
String name = getName();
String append = "";
if (name != null && !name.equals("")) {
append = "(\"" + this.getName() + "\")";
}
return "TAG_Byte" + append + ": " + value;
}
}

67
src/main/java/com/volmit/iris/util/oldnbt/CompoundTag.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
import java.util.Map;
/**
* The <code>TAG_Compound</code> tag.
*
* @author Graham Edgecombe
*/
public final class CompoundTag extends Tag {
/**
* The value.
*/
private final Map<String, Tag> value;
/**
* Creates the tag.
*
* @param name The name.
* @param value The value.
*/
public CompoundTag(String name, Map<String, Tag> value) {
super(name);
this.value = value;
}
@Override
public Map<String, Tag> getValue() {
return value;
}
@Override
public String toString() {
String name = getName();
String append = "";
if (name != null && !name.equals("")) {
append = "(\"" + this.getName() + "\")";
}
StringBuilder bldr = new StringBuilder();
bldr.append("TAG_Compound").append(append).append(": ").append(value.size()).append(" entries\r\n{\r\n");
for (Map.Entry<String, Tag> entry : value.entrySet()) {
bldr.append(" ").append(entry.getValue().toString().replaceAll("\r\n", "\r\n ")).append("\r\n");
}
bldr.append("}");
return bldr.toString();
}
}

59
src/main/java/com/volmit/iris/util/oldnbt/DoubleTag.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
/**
* The <code>TAG_Double</code> tag.
*
* @author Graham Edgecombe
*/
public final class DoubleTag extends Tag {
/**
* The value.
*/
private final double value;
/**
* Creates the tag.
*
* @param name The name.
* @param value The value.
*/
public DoubleTag(String name, double value) {
super(name);
this.value = value;
}
@Override
public Double getValue() {
return value;
}
@Override
public String toString() {
String name = getName();
String append = "";
if (name != null && !name.equals("")) {
append = "(\"" + this.getName() + "\")";
}
return "TAG_Double" + append + ": " + value;
}
}

45
src/main/java/com/volmit/iris/util/oldnbt/EndTag.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
/**
* The <code>TAG_End</code> tag.
*
* @author Graham Edgecombe
*/
public final class EndTag extends Tag {
/**
* Creates the tag.
*/
public EndTag() {
super("");
}
@Override
public Object getValue() {
return null;
}
@Override
public String toString() {
return "TAG_End";
}
}

59
src/main/java/com/volmit/iris/util/oldnbt/FloatTag.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
/**
* The <code>TAG_Float</code> tag.
*
* @author Graham Edgecombe
*/
public final class FloatTag extends Tag {
/**
* The value.
*/
private final float value;
/**
* Creates the tag.
*
* @param name The name.
* @param value The value.
*/
public FloatTag(String name, float value) {
super(name);
this.value = value;
}
@Override
public Float getValue() {
return value;
}
@Override
public String toString() {
String name = getName();
String append = "";
if (name != null && !name.equals("")) {
append = "(\"" + this.getName() + "\")";
}
return "TAG_Float" + append + ": " + value;
}
}

61
src/main/java/com/volmit/iris/util/oldnbt/IntArrayTag.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
import java.util.Arrays;
/**
* The <code>TAG_Int_Array</code> tag.
*
* @author Neil Wightman
*/
public final class IntArrayTag extends Tag {
/**
* The value.
*/
private final int[] value;
/**
* Creates the tag.
*
* @param name The name.
* @param value The value.
*/
public IntArrayTag(String name, int[] value) {
super(name);
this.value = value;
}
@Override
public int[] getValue() {
return value;
}
@Override
public String toString() {
String name = getName();
String append = "";
if (name != null && !name.equals("")) {
append = "(\"" + this.getName() + "\")";
}
return "TAG_Int_Array" + append + ": " + Arrays.toString(value);
}
}

59
src/main/java/com/volmit/iris/util/oldnbt/IntTag.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
/**
* The <code>TAG_Int</code> tag.
*
* @author Graham Edgecombe
*/
public final class IntTag extends Tag {
/**
* The value.
*/
private final int value;
/**
* Creates the tag.
*
* @param name The name.
* @param value The value.
*/
public IntTag(String name, int value) {
super(name);
this.value = value;
}
@Override
public Integer getValue() {
return value;
}
@Override
public String toString() {
String name = getName();
String append = "";
if (name != null && !name.equals("")) {
append = "(\"" + this.getName() + "\")";
}
return "TAG_Int" + append + ": " + value;
}
}

84
src/main/java/com/volmit/iris/util/oldnbt/ListTag.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
import java.util.Collections;
import java.util.List;
/**
* The <code>TAG_List</code> tag.
*
* @author Graham Edgecombe
*/
public final class ListTag extends Tag {
/**
* The type.
*/
private final Class<? extends Tag> type;
/**
* The value.
*/
private final List<Tag> value;
/**
* Creates the tag.
*
* @param name The name.
* @param type The type of item in the list.
* @param value The value.
*/
public ListTag(String name, Class<? extends Tag> type, List<Tag> value) {
super(name);
this.type = type;
this.value = Collections.unmodifiableList(value);
}
/**
* Gets the type of item in this list.
*
* @return The type of item in this list.
*/
public Class<? extends Tag> getType() {
return type;
}
@Override
public List<Tag> getValue() {
return value;
}
@Override
public String toString() {
String name = getName();
String append = "";
if (name != null && !name.equals("")) {
append = "(\"" + this.getName() + "\")";
}
StringBuilder bldr = new StringBuilder();
bldr.append("TAG_List").append(append).append(": ").append(value.size()).append(" entries of type ").append(NBTUtils.getTypeName(type)).append("\r\n{\r\n");
for (Tag t : value) {
bldr.append(" ").append(t.toString().replaceAll("\r\n", "\r\n ")).append("\r\n");
}
bldr.append("}");
return bldr.toString();
}
}

59
src/main/java/com/volmit/iris/util/oldnbt/LongTag.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
/**
* The <code>TAG_Long</code> tag.
*
* @author Graham Edgecombe
*/
public final class LongTag extends Tag {
/**
* The value.
*/
private final long value;
/**
* Creates the tag.
*
* @param name The name.
* @param value The value.
*/
public LongTag(String name, long value) {
super(name);
this.value = value;
}
@Override
public Long getValue() {
return value;
}
@Override
public String toString() {
String name = getName();
String append = "";
if (name != null && !name.equals("")) {
append = "(\"" + this.getName() + "\")";
}
return "TAG_Long" + append + ": " + value;
}
}

63
src/main/java/com/volmit/iris/util/oldnbt/NBTConstants.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
/*
Changes : Neil Wightman - Support 19133 Tag_Int_Array tag
*/
/**
* A class which holds constant values.
*
* @author Graham Edgecombe
*/
public final class NBTConstants {
/**
* The character set used by NBT (UTF-8).
*/
public static final Charset CHARSET = StandardCharsets.UTF_8;
/**
* Tag type constants.
*/
public static final int TYPE_END = 0,
TYPE_BYTE = 1,
TYPE_SHORT = 2,
TYPE_INT = 3,
TYPE_LONG = 4,
TYPE_FLOAT = 5,
TYPE_DOUBLE = 6,
TYPE_BYTE_ARRAY = 7,
TYPE_STRING = 8,
TYPE_LIST = 9,
TYPE_COMPOUND = 10,
TYPE_INT_ARRAY = 11;
/**
* Default private constructor.
*/
private NBTConstants() {
}
}

189
src/main/java/com/volmit/iris/util/oldnbt/NBTInputStream.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
import java.io.Closeable;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.zip.GZIPInputStream;
/*
Changes :
Neil Wightman - Support 19133 Tag_Int_Array tag
*/
/**
* <p>
* This class reads <strong>NBT</strong>, or
* <strong>Named Binary Tag</strong> streams, and produces an object graph of subclasses of the <code>Tag</code> object.</p>
*
* <p>
* The NBT format was created by Markus Persson, and the specification may be found at <a href="http://www.minecraft.net/docs/NBT.txt">
* http://www.minecraft.net/docs/NBT.txt</a>.</p>
*
* @author Graham Edgecombe
*/
public final class NBTInputStream implements Closeable {
/**
* The data input stream.
*/
private final DataInputStream is;
/**
* Create a new <code>NBTInputStream</code>, which will source its data from the specified input stream.
*
* @param is The output stream
*/
public NBTInputStream(DataInputStream is) {
this.is = is;
}
/**
* Creates a new <code>NBTInputStream</code>, which will source its data from the specified input stream.
* The stream will be decompressed using GZIP.
*
* @param is The input stream.
* @throws IOException if an I/O error occurs.
*/
public NBTInputStream(InputStream is) throws IOException {
this.is = new DataInputStream(new GZIPInputStream(is));
}
/**
* Reads an NBT tag from the stream.
*
* @return The tag that was read.
* @throws IOException if an I/O error occurs.
*/
public Tag readTag() throws IOException {
return readTag(0);
}
/**
* Reads an NBT from the stream.
*
* @param depth The depth of this tag.
* @return The tag that was read.
* @throws IOException if an I/O error occurs.
*/
private Tag readTag(int depth) throws IOException {
int type = is.readByte() & 0xFF;
String name;
if (type != NBTConstants.TYPE_END) {
int nameLength = is.readShort() & 0xFFFF;
byte[] nameBytes = new byte[nameLength];
is.readFully(nameBytes);
name = new String(nameBytes, NBTConstants.CHARSET);
} else {
name = "";
}
return readTagPayload(type, name, depth);
}
/**
* Reads the payload of a tag, given the name and type.
*
* @param type The type.
* @param name The name.
* @param depth The depth.
* @return The tag.
* @throws IOException if an I/O error occurs.
*/
private Tag readTagPayload(int type, String name, int depth) throws IOException {
switch (type) {
case NBTConstants.TYPE_END:
if (depth == 0) {
throw new IOException("TAG_End found without a TAG_Compound/TAG_List tag preceding it.");
} else {
return new EndTag();
}
case NBTConstants.TYPE_BYTE:
return new ByteTag(name, is.readByte());
case NBTConstants.TYPE_SHORT:
return new ShortTag(name, is.readShort());
case NBTConstants.TYPE_INT:
return new IntTag(name, is.readInt());
case NBTConstants.TYPE_LONG:
return new LongTag(name, is.readLong());
case NBTConstants.TYPE_FLOAT:
return new FloatTag(name, is.readFloat());
case NBTConstants.TYPE_DOUBLE:
return new DoubleTag(name, is.readDouble());
case NBTConstants.TYPE_BYTE_ARRAY:
int length = is.readInt();
byte[] bytes = new byte[length];
is.readFully(bytes);
return new ByteArrayTag(name, bytes);
case NBTConstants.TYPE_STRING:
length = is.readShort();
bytes = new byte[length];
is.readFully(bytes);
return new StringTag(name, new String(bytes, NBTConstants.CHARSET));
case NBTConstants.TYPE_LIST:
int childType = is.readByte();
length = is.readInt();
List<Tag> tagList = new ArrayList<>();
for (int i = 0; i < length; i++) {
Tag tag = readTagPayload(childType, "", depth + 1);
if (tag instanceof EndTag) {
throw new IOException("TAG_End not permitted in a list.");
}
tagList.add(tag);
}
return new ListTag(name, NBTUtils.getTypeClass(childType), tagList);
case NBTConstants.TYPE_COMPOUND:
Map<String, Tag> tagMap = new HashMap<>();
while (true) {
Tag tag = readTag(depth + 1);
if (tag instanceof EndTag) {
break;
} else {
tagMap.put(tag.getName(), tag);
}
}
return new CompoundTag(name, tagMap);
case NBTConstants.TYPE_INT_ARRAY:
length = is.readInt();
int[] value = new int[length];
for (int i = 0; i < length; i++) {
value[i] = is.readInt();
}
return new IntArrayTag(name, value);
default:
throw new IOException("Invalid tag type: " + type + ".");
}
}
@Override
public void close() throws IOException {
is.close();
}
}

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src/main/java/com/volmit/iris/util/oldnbt/NBTOutputStream.java Normal file
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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
import java.io.Closeable;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import java.util.zip.GZIPOutputStream;
/*
Changes : Neil Wightman - Support 19133 Tag_Int_Array tag
*/
/**
* <p>
* This class writes <strong>NBT</strong>, or
* <strong>Named Binary Tag</strong> <code>Tag</code> objects to an underlying <code>OutputStream</code>.</p>
*
* <p>
* The NBT format was created by Markus Persson, and the specification may be found at <a href="http://www.minecraft.net/docs/NBT.txt">
* http://www.minecraft.net/docs/NBT.txt</a>.</p>
*
* @author Graham Edgecombe
*/
@SuppressWarnings({"EmptyMethod", "JavaDoc"})
public final class NBTOutputStream implements Closeable {
/**
* The output stream.
*/
private final DataOutputStream os;
/**
* Create a new <code>NBTOutputStream</code>, which will write data to the specified underlying output stream.
*
* @param os The output stream
*/
public NBTOutputStream(DataOutputStream os) {
this.os = os;
}
/**
* Creates a new <code>NBTOutputStream</code>, which will write data to the specified underlying output stream.
* the stream will be compressed using GZIP.
*
* @param os The output stream.
* @throws IOException if an I/O error occurs.
*/
public NBTOutputStream(OutputStream os) throws IOException {
this.os = new DataOutputStream(new GZIPOutputStream(os));
}
/**
* Writes a tag.
*
* @param tag The tag to write.
* @throws IOException if an I/O error occurs.
*/
public void writeTag(Tag tag) throws IOException {
int type = NBTUtils.getTypeCode(tag.getClass());
String name = tag.getName();
byte[] nameBytes = name.getBytes(NBTConstants.CHARSET);
os.writeByte(type);
os.writeShort(nameBytes.length);
os.write(nameBytes);
if (type == NBTConstants.TYPE_END) {
throw new IOException("Named TAG_End not permitted.");
}
writeTagPayload(tag);
}
/**
* Writes tag payload.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeTagPayload(Tag tag) throws IOException {
int type = NBTUtils.getTypeCode(tag.getClass());
switch (type) {
case NBTConstants.TYPE_END -> writeEndTagPayload((EndTag) tag);
case NBTConstants.TYPE_BYTE -> writeByteTagPayload((ByteTag) tag);
case NBTConstants.TYPE_SHORT -> writeShortTagPayload((ShortTag) tag);
case NBTConstants.TYPE_INT -> writeIntTagPayload((IntTag) tag);
case NBTConstants.TYPE_LONG -> writeLongTagPayload((LongTag) tag);
case NBTConstants.TYPE_FLOAT -> writeFloatTagPayload((FloatTag) tag);
case NBTConstants.TYPE_DOUBLE -> writeDoubleTagPayload((DoubleTag) tag);
case NBTConstants.TYPE_BYTE_ARRAY -> writeByteArrayTagPayload((ByteArrayTag) tag);
case NBTConstants.TYPE_STRING -> writeStringTagPayload((StringTag) tag);
case NBTConstants.TYPE_LIST -> writeListTagPayload((ListTag) tag);
case NBTConstants.TYPE_COMPOUND -> writeCompoundTagPayload((CompoundTag) tag);
case NBTConstants.TYPE_INT_ARRAY -> writeIntArrayTagPayload((IntArrayTag) tag);
default -> throw new IOException("Invalid tag type: " + type + ".");
}
}
/**
* Writes a <code>TAG_Byte</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeByteTagPayload(ByteTag tag) throws IOException {
os.writeByte(tag.getValue());
}
/**
* Writes a <code>TAG_Byte_Array</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeByteArrayTagPayload(ByteArrayTag tag) throws IOException {
byte[] bytes = tag.getValue();
os.writeInt(bytes.length);
os.write(bytes);
}
/**
* Writes a <code>TAG_Compound</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeCompoundTagPayload(CompoundTag tag) throws IOException {
for (Tag childTag : tag.getValue().values()) {
writeTag(childTag);
}
os.writeByte((byte) 0); // end tag - better way?
}
/**
* Writes a <code>TAG_List</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeListTagPayload(ListTag tag) throws IOException {
Class<? extends Tag> clazz = tag.getType();
List<Tag> tags = tag.getValue();
int size = tags.size();
os.writeByte(NBTUtils.getTypeCode(clazz));
os.writeInt(size);
for (Tag value : tags) {
writeTagPayload(value);
}
}
/**
* Writes a <code>TAG_String</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeStringTagPayload(StringTag tag) throws IOException {
byte[] bytes = tag.getValue().getBytes(NBTConstants.CHARSET);
os.writeShort(bytes.length);
os.write(bytes);
}
/**
* Writes a <code>TAG_Double</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeDoubleTagPayload(DoubleTag tag) throws IOException {
os.writeDouble(tag.getValue());
}
/**
* Writes a <code>TAG_Float</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeFloatTagPayload(FloatTag tag) throws IOException {
os.writeFloat(tag.getValue());
}
/**
* Writes a <code>TAG_Long</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeLongTagPayload(LongTag tag) throws IOException {
os.writeLong(tag.getValue());
}
/**
* Writes a <code>TAG_Int</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeIntTagPayload(IntTag tag) throws IOException {
os.writeInt(tag.getValue());
}
/**
* Writes a <code>TAG_Short</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeShortTagPayload(ShortTag tag) throws IOException {
os.writeShort(tag.getValue());
}
/**
* Writes a <code>TAG_Empty</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeEndTagPayload(EndTag tag) {
/* empty */
}
/**
* Writes a <code>TAG_Int_Array</code> tag.
*
* @param tag The tag.
* @throws IOException if an I/O error occurs.
*/
private void writeIntArrayTagPayload(IntArrayTag tag) throws IOException {
final int[] values = tag.getValue();
os.writeInt(values.length);
for (final int value : values) {
os.writeInt(value);
}
}
@Override
public void close() throws IOException {
os.close();
}
}

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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
/*
Changes : Neil Wightman - Support 19133 Tag_Int_Array tag
*/
/**
* A class which contains NBT-related utility methods. This currently supports reading 19133 but <b>only</b> writing 19132.
*
* @author Graham Edgecombe
*/
public final class NBTUtils {
/**
* Gets the type name of a tag.
*
* @param clazz The tag class.
* @return The type name.
*/
public static String getTypeName(Class<? extends Tag> clazz) {
if (clazz.equals(ByteArrayTag.class)) {
return "TAG_Byte_Array";
} else if (clazz.equals(ByteTag.class)) {
return "TAG_Byte";
} else if (clazz.equals(CompoundTag.class)) {
return "TAG_Compound";
} else if (clazz.equals(DoubleTag.class)) {
return "TAG_Double";
} else if (clazz.equals(EndTag.class)) {
return "TAG_End";
} else if (clazz.equals(FloatTag.class)) {
return "TAG_Float";
} else if (clazz.equals(IntTag.class)) {
return "TAG_Int";
} else if (clazz.equals(ListTag.class)) {
return "TAG_List";
} else if (clazz.equals(LongTag.class)) {
return "TAG_Long";
} else if (clazz.equals(ShortTag.class)) {
return "TAG_Short";
} else if (clazz.equals(StringTag.class)) {
return "TAG_String";
} else if (clazz.equals(IntArrayTag.class)) {
return "TAG_Int_Array";
} else {
throw new IllegalArgumentException("Invalid tag classs (" + clazz.getName() + ").");
}
}
/**
* Gets the type code of a tag class.
*
* @param clazz The tag class.
* @return The type code.
* @throws IllegalArgumentException if the tag class is invalid.
*/
public static int getTypeCode(Class<? extends Tag> clazz) {
if (clazz.equals(ByteArrayTag.class)) {
return NBTConstants.TYPE_BYTE_ARRAY;
} else if (clazz.equals(ByteTag.class)) {
return NBTConstants.TYPE_BYTE;
} else if (clazz.equals(CompoundTag.class)) {
return NBTConstants.TYPE_COMPOUND;
} else if (clazz.equals(DoubleTag.class)) {
return NBTConstants.TYPE_DOUBLE;
} else if (clazz.equals(EndTag.class)) {
return NBTConstants.TYPE_END;
} else if (clazz.equals(FloatTag.class)) {
return NBTConstants.TYPE_FLOAT;
} else if (clazz.equals(IntTag.class)) {
return NBTConstants.TYPE_INT;
} else if (clazz.equals(ListTag.class)) {
return NBTConstants.TYPE_LIST;
} else if (clazz.equals(LongTag.class)) {
return NBTConstants.TYPE_LONG;
} else if (clazz.equals(ShortTag.class)) {
return NBTConstants.TYPE_SHORT;
} else if (clazz.equals(StringTag.class)) {
return NBTConstants.TYPE_STRING;
} else if (clazz.equals(IntArrayTag.class)) {
return NBTConstants.TYPE_INT_ARRAY;
} else {
throw new IllegalArgumentException("Invalid tag classs (" + clazz.getName() + ").");
}
}
/**
* Gets the class of a type of tag.
*
* @param type The type.
* @return The class.
* @throws IllegalArgumentException if the tag type is invalid.
*/
public static Class<? extends Tag> getTypeClass(int type) {
return switch (type) {
case NBTConstants.TYPE_END -> EndTag.class;
case NBTConstants.TYPE_BYTE -> ByteTag.class;
case NBTConstants.TYPE_SHORT -> ShortTag.class;
case NBTConstants.TYPE_INT -> IntTag.class;
case NBTConstants.TYPE_LONG -> LongTag.class;
case NBTConstants.TYPE_FLOAT -> FloatTag.class;
case NBTConstants.TYPE_DOUBLE -> DoubleTag.class;
case NBTConstants.TYPE_BYTE_ARRAY -> ByteArrayTag.class;
case NBTConstants.TYPE_STRING -> StringTag.class;
case NBTConstants.TYPE_LIST -> ListTag.class;
case NBTConstants.TYPE_COMPOUND -> CompoundTag.class;
case NBTConstants.TYPE_INT_ARRAY -> IntArrayTag.class;
default -> throw new IllegalArgumentException("Invalid tag type : " + type + ".");
};
}
/**
* Default private constructor.
*/
private NBTUtils() {
}
}

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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
/**
* The <code>TAG_Short</code> tag.
*
* @author Graham Edgecombe
*/
public final class ShortTag extends Tag {
/**
* The value.
*/
private final short value;
/**
* Creates the tag.
*
* @param name The name.
* @param value The value.
*/
public ShortTag(String name, short value) {
super(name);
this.value = value;
}
@Override
public Short getValue() {
return value;
}
@Override
public String toString() {
String name = getName();
String append = "";
if (name != null && !name.equals("")) {
append = "(\"" + this.getName() + "\")";
}
return "TAG_Short" + append + ": " + value;
}
}

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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
/**
* The <code>TAG_String</code> tag.
*
* @author Graham Edgecombe
*/
public final class StringTag extends Tag {
/**
* The value.
*/
private final String value;
/**
* Creates the tag.
*
* @param name The name.
* @param value The value.
*/
public StringTag(String name, String value) {
super(name);
this.value = value;
}
@Override
public String getValue() {
return value;
}
@Override
public String toString() {
String name = getName();
String append = "";
if (name != null && !name.equals("")) {
append = "(\"" + this.getName() + "\")";
}
return "TAG_String" + append + ": " + value;
}
}

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/*
* Iris is a World Generator for Minecraft Bukkit Servers
* Copyright (c) 2021 Arcane Arts (Volmit Software)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.volmit.iris.util.oldnbt;
/**
* Represents a single NBT tag.
*
* @author Graham Edgecombe
*/
public abstract class Tag {
/**
* The name of this tag.
*/
private final String name;
/**
* Creates the tag with the specified name.
*
* @param name The name.
*/
public Tag(String name) {
this.name = name;
}
/**
* Gets the name of this tag.
*
* @return The name of this tag.
*/
public final String getName() {
return name;
}
/**
* Gets the value of this tag.
*
* @return The value of this tag.
*/
public abstract Object getValue();
}