NBT: вносим правки в библиотеку flow-nbt

В используемой версии отсутствует Tag_Long_Array

anvil-loader/src/main/java/com/flowpowered/nbt/LongArrayTag.java

@@ -0,0 +1,73 @@
+package com.flowpowered.nbt;
+
+import java.util.Arrays;
+
+public class LongArrayTag extends Tag<long[]> {
+    /**
+     * The value.
+     */
+    private final long[] value;
+
+    /**
+     * Creates the tag.
+     *
+     * @param name The name.
+     * @param value The value.
+     */
+    public LongArrayTag(String name, long[] value) {
+        super(TagType.TAG_LONG_ARRAY, name);
+        this.value = value;
+    }
+
+    @Override
+    public long[] getValue() {
+        return value;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder hex = new StringBuilder();
+        for (long s : value) {
+            String hexDigits = Long.toHexString(s).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_Long_Array" + append + ": " + hex.toString();
+    }
+
+    @Override
+    public LongArrayTag clone() {
+        long[] clonedArray = cloneArray(value);
+
+        return new LongArrayTag(getName(), clonedArray);
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (!(other instanceof IntArrayTag)) {
+            return false;
+        }
+
+        LongArrayTag tag = (LongArrayTag) other;
+        return Arrays.equals(value, tag.value) && getName().equals(tag.getName());
+    }
+
+    private long[] cloneArray(long[] longArray) {
+        if (longArray == null) {
+            return null;
+        } else {
+            int length = longArray.length;
+            byte[] newArray = new byte[length];
+            System.arraycopy(longArray, 0, newArray, 0, length);
+            return longArray;
+        }
+    }
+}

anvil-loader/src/main/java/com/flowpowered/nbt/NBTConstants.java

@@ -0,0 +1,38 @@
+package com.flowpowered.nbt;
+
+import java.nio.charset.Charset;
+
+/**
+ * A class which holds constant values.
+ */
+public final class NBTConstants {
+    /**
+     * The character set used by NBT (UTF-8).
+     */
+    public static final Charset CHARSET = Charset.forName("UTF-8");
+    /**
+     * Tag type constants.
+     */
+    @Deprecated
+    public static final int TYPE_END = TagType.TAG_END.getId(),
+            TYPE_BYTE = TagType.TAG_BYTE.getId(),
+            TYPE_SHORT = TagType.TAG_SHORT.getId(),
+            TYPE_INT = TagType.TAG_INT.getId(),
+            TYPE_LONG = TagType.TAG_LONG.getId(),
+            TYPE_FLOAT = TagType.TAG_FLOAT.getId(),
+            TYPE_DOUBLE = TagType.TAG_DOUBLE.getId(),
+            TYPE_BYTE_ARRAY = TagType.TAG_BYTE_ARRAY.getId(),
+            TYPE_STRING = TagType.TAG_STRING.getId(),
+            TYPE_LIST = TagType.TAG_LIST.getId(),
+            TYPE_COMPOUND = TagType.TAG_COMPOUND.getId(),
+            TYPE_INT_ARRAY = TagType.TAG_INT_ARRAY.getId(),
+            TYPE_SHORT_ARRAY = TagType.TAG_SHORT_ARRAY.getId(),
+            TYPE_LONG_ARRAY = TagType.TAG_LONG_ARRAY.getId();
+
+    /**
+     * Default private constructor.
+     */
+    private NBTConstants() {
+    }
+}
+

anvil-loader/src/main/java/com/flowpowered/nbt/TagType.java

@@ -0,0 +1,92 @@
+package com.flowpowered.nbt;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public enum TagType {
+    TAG_END(EndTag.class, "TAG_End", 0),
+    TAG_BYTE(ByteTag.class, "TAG_Byte", 1),
+    TAG_SHORT(ShortTag.class, "TAG_Short", 2),
+    TAG_INT(IntTag.class, "TAG_Int", 3),
+    TAG_LONG(LongTag.class, "TAG_Long", 4),
+    TAG_FLOAT(FloatTag.class, "TAG_Float", 5),
+    TAG_DOUBLE(DoubleTag.class, "TAG_Double", 6),
+    TAG_BYTE_ARRAY(ByteArrayTag.class, "TAG_Byte_Array", 7),
+    TAG_STRING(StringTag.class, "TAG_String", 8),
+    TAG_LIST((Class) ListTag.class, "TAG_List", 9),
+    // Java generics, y u so suck
+    TAG_COMPOUND(CompoundTag.class, "TAG_Compound", 10),
+    TAG_INT_ARRAY(IntArrayTag.class, "TAG_Int_Array", 11),
+    TAG_LONG_ARRAY(LongArrayTag.class, "TAG_Long_Array", 12),
+    TAG_SHORT_ARRAY(ShortArrayTag.class, "TAG_Short_Array", 100),;
+    private static final Map<Class<? extends Tag<?>>, TagType> BY_CLASS = new HashMap<Class<? extends Tag<?>>, TagType>();
+    private static final Map<String, TagType> BY_NAME = new HashMap<String, TagType>();
+    private static final TagType[] BY_ID;
+
+    static {
+        BY_ID = new TagType[BaseData.maxId + 1];
+        for (TagType type : TagType.values()) {
+            BY_CLASS.put(type.getTagClass(), type);
+            BY_NAME.put(type.getTypeName(), type);
+            BY_ID[type.getId()] = type;
+        }
+    }
+
+    private final Class<? extends Tag<?>> tagClass;
+    private final String typeName;
+    private final int id;
+
+    private TagType(Class<? extends Tag<?>> tagClass, String typeName, int id) {
+        this.tagClass = tagClass;
+        this.typeName = typeName;
+        this.id = id;
+        // Such a hack, shame that Java makes this such a pain
+        if (this.id > BaseData.maxId) {
+            BaseData.maxId = this.id;
+        }
+    }
+
+    public Class<? extends Tag<?>> getTagClass() {
+        return tagClass;
+    }
+
+    public String getTypeName() {
+        return typeName;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public static TagType getByTagClass(Class<? extends Tag<?>> clazz) {
+        TagType ret = BY_CLASS.get(clazz);
+        if (ret == null) {
+            throw new IllegalArgumentException("Tag type " + clazz + " is unknown!");
+        }
+        return ret;
+    }
+
+    public static TagType getByTypeName(String typeName) {
+        TagType ret = BY_NAME.get(typeName);
+        if (ret == null) {
+            throw new IllegalArgumentException("Tag type " + typeName + " is unknown!");
+        }
+        return ret;
+    }
+
+    public static TagType getById(int id) {
+        if (id >= 0 && id < BY_ID.length) {
+            TagType ret = BY_ID[id];
+            if (ret == null) {
+                throw new IllegalArgumentException("Tag type id " + id + " is unknown!");
+            }
+            return ret;
+        } else {
+            throw new IndexOutOfBoundsException("Tag type id " + id + " is out of bounds!");
+        }
+    }
+
+    private static class BaseData {
+        private static int maxId = 0;
+    }
+}

anvil-loader/src/main/java/com/flowpowered/nbt/stream/NBTInputStream.java

@@ -0,0 +1,210 @@
+package com.flowpowered.nbt.stream;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.ByteOrder;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.zip.GZIPInputStream;
+
+import com.flowpowered.nbt.*;
+
+/**
+ * This class reads NBT, or Named Binary Tag streams, and produces an object graph of subclasses of the {@link Tag} object. <p /> The NBT format was created by Markus Persson, and the specification
+ * may be found at <a href="https://flowpowered.com/nbt/spec.txt"> https://flowpowered.com/nbt/spec.txt</a>.
+ */
+public final class NBTInputStream implements Closeable {
+    /**
+     * The data input stream.
+     */
+    private final EndianSwitchableInputStream is;
+
+    /**
+     * Creates a new {@link NBTInputStream}, which will source its data from the specified input stream. This assumes the stream is compressed.
+     *
+     * @param is The input stream.
+     * @throws java.io.IOException if an I/O error occurs.
+     */
+    public NBTInputStream(InputStream is) throws IOException {
+        this(is, true, ByteOrder.BIG_ENDIAN);
+    }
+
+    /**
+     * Creates a new {@link NBTInputStream}, which sources its data from the specified input stream. A flag must be passed which indicates if the stream is compressed with GZIP or not. This assumes the
+     * stream uses big endian encoding.
+     *
+     * @param is The input stream.
+     * @param compressed A flag indicating if the stream is compressed.
+     * @throws java.io.IOException if an I/O error occurs.
+     */
+    public NBTInputStream(InputStream is, boolean compressed) throws IOException {
+        this(is, compressed, ByteOrder.BIG_ENDIAN);
+    }
+
+    /**
+     * Creates a new {@link NBTInputStream}, which sources its data from the specified input stream. A flag must be passed which indicates if the stream is compressed with GZIP or not.
+     *
+     * @param is The input stream.
+     * @param compressed A flag indicating if the stream is compressed.
+     * @param endianness Whether to read numbers from the InputStream with little endian encoding.
+     * @throws java.io.IOException if an I/O error occurs.
+     */
+    public NBTInputStream(InputStream is, boolean compressed, ByteOrder endianness) throws IOException {
+        this.is = new EndianSwitchableInputStream(compressed ? new GZIPInputStream(is) : is, endianness);
+    }
+
+    /**
+     * Reads an NBT {@link Tag} from the stream.
+     *
+     * @return The tag that was read.
+     * @throws java.io.IOException if an I/O error occurs.
+     */
+    public Tag readTag() throws IOException {
+        return readTag(0);
+    }
+
+    /**
+     * Reads an NBT {@link Tag} from the stream.
+     *
+     * @param depth The depth of this tag.
+     * @return The tag that was read.
+     * @throws java.io.IOException if an I/O error occurs.
+     */
+    private Tag readTag(int depth) throws IOException {
+        int typeId = is.readByte() & 0xFF;
+        TagType type = TagType.getById(typeId);
+
+        String name;
+        if (type != TagType.TAG_END) {
+            int nameLength = is.readShort() & 0xFFFF;
+            byte[] nameBytes = new byte[nameLength];
+            is.readFully(nameBytes);
+            name = new String(nameBytes, NBTConstants.CHARSET.name());
+        } else {
+            name = "";
+        }
+
+        return readTagPayload(type, name, depth);
+    }
+
+    /**
+     * Reads the payload of a {@link Tag}, given the name and type.
+     *
+     * @param type The type.
+     * @param name The name.
+     * @param depth The depth.
+     * @return The tag.
+     * @throws java.io.IOException if an I/O error occurs.
+     */
+    @SuppressWarnings ({"unchecked", "rawtypes"})
+    private Tag readTagPayload(TagType type, String name, int depth) throws IOException {
+        switch (type) {
+            case TAG_END:
+                if (depth == 0) {
+                    throw new IOException("TAG_End found without a TAG_Compound/TAG_List tag preceding it.");
+                } else {
+                    return new EndTag();
+                }
+
+            case TAG_BYTE:
+                return new ByteTag(name, is.readByte());
+
+            case TAG_SHORT:
+                return new ShortTag(name, is.readShort());
+
+            case TAG_INT:
+                return new IntTag(name, is.readInt());
+
+            case TAG_LONG:
+                return new LongTag(name, is.readLong());
+
+            case TAG_FLOAT:
+                return new FloatTag(name, is.readFloat());
+
+            case TAG_DOUBLE:
+                return new DoubleTag(name, is.readDouble());
+
+            case TAG_BYTE_ARRAY:
+                int length = is.readInt();
+                byte[] bytes = new byte[length];
+                is.readFully(bytes);
+                return new ByteArrayTag(name, bytes);
+
+            case TAG_STRING:
+                length = is.readShort();
+                bytes = new byte[length];
+                is.readFully(bytes);
+                return new StringTag(name, new String(bytes, NBTConstants.CHARSET.name()));
+
+            case TAG_LIST:
+                TagType childType = TagType.getById(is.readByte());
+                length = is.readInt();
+
+                Class<? extends Tag> clazz = childType.getTagClass();
+                List<Tag> tagList = new ArrayList<Tag>(length);
+                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.");
+                    } else if (!clazz.isInstance(tag)) {
+                        throw new IOException("Mixed tag types within a list.");
+                    }
+                    tagList.add(tag);
+                }
+
+                return new ListTag(name, clazz, tagList);
+
+            case TAG_COMPOUND:
+                CompoundMap compoundTagList = new CompoundMap();
+                while (true) {
+                    Tag tag = readTag(depth + 1);
+                    if (tag instanceof EndTag) {
+                        break;
+                    } else {
+                        compoundTagList.put(tag);
+                    }
+                }
+
+                return new CompoundTag(name, compoundTagList);
+
+            case TAG_INT_ARRAY:
+                length = is.readInt();
+                int[] ints = new int[length];
+                for (int i = 0; i < length; i++) {
+                    ints[i] = is.readInt();
+                }
+                return new IntArrayTag(name, ints);
+
+            case TAG_SHORT_ARRAY:
+                length = is.readInt();
+                short[] shorts = new short[length];
+                for (int i = 0; i < length; i++) {
+                    shorts[i] = is.readShort();
+                }
+                return new ShortArrayTag(name, shorts);
+
+            case TAG_LONG_ARRAY:
+                length = is.readInt();
+                long[] longs = new long[length];
+                for (int i = 0; i < length; i++) {
+                    longs[i] = is.readLong();
+                }
+                return new LongArrayTag(name, longs);
+
+            default:
+                throw new IOException("Invalid tag type: " + type + ".");
+        }
+    }
+
+    public void close() throws IOException {
+        is.close();
+    }
+
+    /**
+     * @return whether this NBTInputStream reads numbers in little-endian format.
+     */
+    public ByteOrder getByteOrder() {
+        return is.getEndianness();
+    }
+}