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src/com/jpexs/browsers/cache/RafInputStream.java

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+/*
+ *  Copyright (C) 2010-2014 JPEXS
+ * 
+ *  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 <http://www.gnu.org/licenses/>.
+ */
+package com.jpexs.browsers.cache;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.RandomAccessFile;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ *
+ * @author JPEXS
+ */
+public class RafInputStream extends InputStream {
+
+    private final RandomAccessFile raf;
+    private long pos = 0;
+
+    public RafInputStream(RandomAccessFile raf) {
+        this.raf = raf;
+        try {
+            pos = raf.getFilePointer();
+        } catch (IOException ex) {
+            Logger.getLogger(RafInputStream.class.getName()).log(Level.SEVERE, null, ex);
+        }
+    }
+
+    @Override
+    public int read() throws IOException {
+        raf.seek(pos++);
+        return raf.read();
+    }
+}