1 files changed, 73 insertions, 0 deletions
diff --git a/src/proguard/io/DataEntryWriter.java b/src/proguard/io/DataEntryWriter.java
new file mode 100644
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+++ b/src/proguard/io/DataEntryWriter.java
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+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
+ *
+ * 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 2 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, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+package proguard.io;
+
+import java.io.*;
+
+
+/**
+ * This interface provides methods for writing data entries, such as ZIP entries
+ * or files. The implementation determines to which type of data entry the
+ * data will be written.
+ *
+ * @author Eric Lafortune
+ */
+public interface DataEntryWriter
+{
+    /**
+     * Creates a directory.
+     * @param dataEntry the data entry for which the directory is to be created.
+     * @return whether the directory has been created.
+     */
+    public boolean createDirectory(DataEntry dataEntry) throws IOException;
+
+
+    /**
+     * Returns an output stream for writing data. The caller must not close
+     * the output stream; closing the output stream is the responsibility of
+     * the implementation of this interface.
+     * @param dataEntry the data entry for which the output stream is to be created.
+     * @return the output stream. The stream may be <code>null</code> to indicate
+     *         that the data entry should not be written.
+     */
+    public OutputStream getOutputStream(DataEntry dataEntry) throws IOException;
+
+
+    /**
+     * Returns an output stream for writing data. The caller must not close
+     * the output stream; closing the output stream is the responsibility of
+     * the implementation of this interface.
+     * @param dataEntry the data entry for which the output stream is to be created.
+     * @param finisher  the optional finisher that will be called before this
+     *                  class closes the output stream (at some later point in
+     *                  time) that will be returned (now).
+     * @return the output stream. The stream may be <code>null</code> to indicate
+     *         that the data entry should not be written.
+     */
+    public OutputStream getOutputStream(DataEntry dataEntry,
+                                        Finisher  finisher) throws IOException;
+
+
+    /**
+     * Finishes writing all data entries.
+     */
+    public void close() throws IOException;
+}