Move archive classes into their own package

1 files changed, 37 insertions, 0 deletions

diff --git a/src/main/java/org/zwobble/mammoth/internal/archives/ZippedArchive.java b/src/main/java/org/zwobble/mammoth/internal/archives/ZippedArchive.java
new file mode 100644
index 0000000..32b8894
--- /dev/null
+++ b/src/main/java/org/zwobble/mammoth/internal/archives/ZippedArchive.java
@@ -0,0 +1,37 @@
+package org.zwobble.mammoth.internal.archives;
+
+import org.zwobble.mammoth.internal.archives.Archive;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Optional;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+
+public class ZippedArchive implements Archive {
+    private final ZipFile zipFile;
+
+    public ZippedArchive(ZipFile zipFile) {
+        this.zipFile = zipFile;
+    }
+
+    public ZippedArchive(File file) throws IOException {
+        this(new ZipFile(file));
+    }
+
+    @Override
+    public Optional<InputStream> tryGetInputStream(String name) throws IOException {
+        ZipEntry entry = zipFile.getEntry(name);
+        if (entry == null) {
+            return Optional.empty();
+        } else {
+            return Optional.of(zipFile.getInputStream(entry));
+        }
+    }
+
+    @Override
+    public void close() throws IOException {
+        zipFile.close();
+    }
+}