83 lines
1.8 KiB
Java
83 lines
1.8 KiB
Java
package com.songoda.epicheads.cache;
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import com.songoda.epicheads.EpicHeads;
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import com.songoda.epicheads.util.IOUtils;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.util.HashSet;
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import java.util.Set;
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import java.util.zip.GZIPInputStream;
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public class ModsFileHeader {
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private final int version;
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private final Set<String> modNames = new HashSet<>();
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public ModsFileHeader(Set<String> modNames) {
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this(2, modNames);
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}
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public ModsFileHeader(int version, Set<String> modNames) {
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this.version = version;
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this.modNames.addAll(modNames);
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}
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public int getVersion() {
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return version;
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}
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public Set<String> getModNames() {
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return modNames;
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}
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public int getUninstalledMods(CacheFile cache) {
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int newMods = 0;
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for (String mod : modNames) {
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if (cache.hasMod(mod))
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continue;
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++newMods;
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}
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return newMods;
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}
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public void write(ObjectOutputStream stream) throws IOException {
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stream.writeInt(2);
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IOUtils.writeStringSet(stream, modNames);
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}
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public static ModsFileHeader readResource(String resource) throws IOException {
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try (InputStream stream = EpicHeads.getInstance().getResource(resource)) {
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return readCompressed(stream);
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}
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}
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public static ModsFileHeader readCompressed(InputStream is) throws IOException {
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try (GZIPInputStream zis = new GZIPInputStream(is); ObjectInputStream stream = new ObjectInputStream(zis)) {
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return read(stream);
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}
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}
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public static ModsFileHeader read(ObjectInputStream stream) throws IOException {
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int version = stream.readInt();
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switch (version) {
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case 2:
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case 1:
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Set<String> modNames = IOUtils.readStringSet(stream);
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return new ModsFileHeader(version, modNames);
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default:
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throw new UnsupportedOperationException("Unknown mods file version " + version);
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}
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}
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}
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