215 lines
5.3 KiB
Java
215 lines
5.3 KiB
Java
/**
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* Copyright (c) 2011-2015, SpaceToad and the BuildCraft Team
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* http://www.mod-buildcraft.com
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*
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* BuildCraft is distributed under the terms of the Minecraft Mod Public
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* License 1.0, or MMPL. Please check the contents of the license located in
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* http://www.mod-buildcraft.com/MMPL-1.0.txt
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*/
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package buildcraft.builders;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.FilenameFilter;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import java.util.Locale;
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import java.util.Set;
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import java.util.TreeSet;
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import net.minecraft.nbt.NBTTagCompound;
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import buildcraft.api.core.BCLog;
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import buildcraft.api.library.LibraryAPI;
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import buildcraft.core.blueprints.LibraryId;
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import buildcraft.core.lib.utils.NBTUtils;
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public class LibraryDatabase {
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protected Set<LibraryId> blueprintIds;
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protected LibraryId[] pages = new LibraryId[0];
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private File outputDir;
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private File[] inputDirs;
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/**
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* Initialize the blueprint database.
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*
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* @param inputPaths directories to read the blueprints from.
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*/
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public void init(String[] inputPaths, String outputPath) {
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outputDir = new File(outputPath);
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if (!outputDir.exists()) {
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outputDir.mkdirs();
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}
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inputDirs = new File[inputPaths.length];
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for (int i = 0; i < inputDirs.length; ++i) {
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inputDirs[i] = new File(inputPaths[i]);
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}
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refresh();
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}
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public void refresh() {
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blueprintIds = new TreeSet<LibraryId>();
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loadIndex(inputDirs);
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}
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public void deleteBlueprint (LibraryId id) {
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File blueprintFile = getBlueprintFile(id);
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if (blueprintFile != null) {
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blueprintFile.delete();
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blueprintIds.remove(id);
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pages = new LibraryId[blueprintIds.size()];
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pages = blueprintIds.toArray(pages);
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}
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}
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protected File getBlueprintFile(LibraryId id) {
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String name = String.format(Locale.ENGLISH, "%s." + id.extension, id.toString());
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for (File dir : inputDirs) {
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File f = new File(dir, name);
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if (f.exists()) {
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return f;
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}
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}
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return null;
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}
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protected File getBlueprintOutputFile(LibraryId id) {
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String name = String.format(Locale.ENGLISH, "%s." + id.extension, id.toString());
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return new File(outputDir, name);
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}
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public void add(LibraryId base, NBTTagCompound compound) {
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save(base, compound);
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if (!blueprintIds.contains(base)) {
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blueprintIds.add(base);
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pages = blueprintIds.toArray(pages);
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}
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}
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private void save(LibraryId base, NBTTagCompound compound) {
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byte[] data = NBTUtils.save(compound);
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base.generateUniqueId(data);
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File blueprintFile = getBlueprintOutputFile(base);
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if (!blueprintFile.exists()) {
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try {
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FileOutputStream f = new FileOutputStream(blueprintFile);
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f.write(data);
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f.close();
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} catch (IOException ex) {
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BCLog.logger.error(String.format("Failed to save library file: %s %s", blueprintFile.getName(), ex.getMessage()));
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}
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}
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}
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private void loadIndex(File[] dirs) {
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for (File dir : dirs) {
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if (dir != null) {
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loadIndex(dir);
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}
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}
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}
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private void loadIndex(File directory) {
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FilenameFilter filter = new FilenameFilter() {
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@Override
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public boolean accept(File dir, String name) {
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int dotIndex = name.lastIndexOf('.') + 1;
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String extension = name.substring(dotIndex);
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return LibraryAPI.getHandlerFor(extension) != null;
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}
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};
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if (directory.exists()) {
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File[] files = directory.listFiles(filter);
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if (files == null || files.length == 0) {
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return;
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}
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for (File blueprintFile : files) {
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String fileName = blueprintFile.getName();
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LibraryId id = new LibraryId();
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int sepIndex = fileName.lastIndexOf(LibraryId.BPT_SEP_CHARACTER);
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int dotIndex = fileName.lastIndexOf('.');
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if (dotIndex > 0) {
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String extension = fileName.substring(dotIndex + 1);
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if (sepIndex > 0) {
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String prefix = fileName.substring(0, sepIndex);
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String suffix = fileName.substring(sepIndex + 1);
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id.name = prefix;
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id.uniqueId = LibraryId.toBytes(suffix.substring(0, suffix.length() - (extension.length() + 1)));
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} else {
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id.name = fileName.substring(0, dotIndex);
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id.uniqueId = new byte[0];
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}
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id.extension = extension;
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if (!blueprintIds.contains(id)) {
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blueprintIds.add(id);
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}
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} else {
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BCLog.logger.warn("Found incorrectly named (no extension) blueprint file: '%s'!", fileName);
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}
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}
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pages = blueprintIds.toArray(new LibraryId[blueprintIds.size()]);
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}
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}
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public boolean exists (LibraryId id) {
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return blueprintIds.contains(id);
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}
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public NBTTagCompound load(final LibraryId id) {
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if (id == null) {
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return null;
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}
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NBTTagCompound compound = load(getBlueprintFile(id));
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return compound;
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}
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public static NBTTagCompound load (File blueprintFile) {
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if (blueprintFile != null && blueprintFile.exists()) {
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try {
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FileInputStream f = new FileInputStream(blueprintFile);
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byte [] data = new byte [(int) blueprintFile.length()];
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f.read (data);
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f.close();
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return NBTUtils.load(data);
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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return null;
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}
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public List<LibraryId> getBlueprintIds() {
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return Collections.unmodifiableList(new ArrayList<LibraryId>(blueprintIds));
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}
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}
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