Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 650 insertions, 0 deletions

diff --git a/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeInputStreamHelper.java b/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeInputStreamHelper.java
new file mode 100644
index 0000000000..66b6f54898
--- /dev/null
+++ b/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeInputStreamHelper.java
@@ -0,0 +1,62 @@
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+package com.sun.star.sdbcx.comp.hsqldb;
+
+public class NativeInputStreamHelper extends java.io.InputStream{
+    private final String key;
+    private final String file;
+    private final StorageNativeInputStream in;
+    /** Creates a new instance of NativeInputStreamHelper */
+    public NativeInputStreamHelper(String key,String _file) {
+        file = _file;
+        this.key = key;
+        in = new StorageNativeInputStream(key,file);
+    }
+
+    @Override
+    public int read() throws java.io.IOException {
+        return in.read(key,file);
+    }
+
+    @Override
+    public int read(byte[] b, int off, int len) throws java.io.IOException {
+        return in.read(key,file,b,off,len);
+    }
+
+    @Override
+    public void close() throws java.io.IOException {
+        in.close(key,file);
+    }
+
+    @Override
+    public long skip(long n) throws java.io.IOException {
+        return in.skip(key,file,n);
+    }
+
+    @Override
+    public int available() throws java.io.IOException {
+        return in.available(key,file);
+    }
+
+    @Override
+    public int read(byte[] b) throws java.io.IOException {
+        return in.read(key,file,b);
+    }
+
+}
diff --git a/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeLibraries.java b/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeLibraries.java
new file mode 100644
index 0000000000..e8ea8d44ee
--- /dev/null
+++ b/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeLibraries.java
@@ -0,0 +1,71 @@
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+package com.sun.star.sdbcx.comp.hsqldb;
+
+import java.io.File;
+import java.net.URL;
+import java.net.URLClassLoader;
+
+final class NativeLibraries {
+    public static void load() {
+        if (System.getProperty( "os.name" ).startsWith("Windows")) {
+            loadLibrary("msvcr71");
+            loadLibrary("sal3");
+            loadLibrary("dbtoolsmi");
+        }
+        loadLibrary("hsqldb");
+    }
+
+    private static void loadLibrary(String libname) {
+        // At least on macOS Tiger, System.loadLibrary("hsqldb2") does not
+        // find the hsqldb2 library one directory above sdbc_hsqldb.jar, even
+        // though ".." is on the jar's Class-Path; however, the alternative
+        // code (needing Java 1.5, which is given for macOS Tiger) works
+        // there:
+        try {
+            System.loadLibrary(libname);
+        } catch (UnsatisfiedLinkError e) {
+            ClassLoader cl = NativeLibraries.class.getClassLoader();
+            if (cl instanceof URLClassLoader) {
+                String sysname = System.mapLibraryName(libname);
+                // At least Oracle's 1.7.0_51 now maps to .dylib rather than
+                // .jnilib:
+                if (System.getProperty("os.name").startsWith("Mac")
+                    && sysname.endsWith(".dylib"))
+                {
+                    sysname
+                        = sysname.substring(
+                            0, sysname.length() - "dylib".length())
+                        + "jnilib";
+                }
+                URL url = ((URLClassLoader) cl).findResource(sysname);
+                if (url != null) {
+                    try {
+                        System.load(new File(url.toURI()).getAbsolutePath());
+                    } catch (Throwable t) {
+                        throw new UnsatisfiedLinkError(
+                            e.toString()+ " - " + t.toString());
+                    }
+                }
+            }
+        }
+    }
+
+    private NativeLibraries() {}
+}
diff --git a/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeOutputStreamHelper.java b/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeOutputStreamHelper.java
new file mode 100644
index 0000000000..6445f24139
--- /dev/null
+++ b/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeOutputStreamHelper.java
@@ -0,0 +1,60 @@
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+package com.sun.star.sdbcx.comp.hsqldb;
+
+public class NativeOutputStreamHelper extends java.io.OutputStream{
+
+    private final String key;
+    private final String file;
+    private final StorageNativeOutputStream out;
+    /** Creates a new instance of NativeOutputStreamHelper */
+    public NativeOutputStreamHelper(String key,String _file) {
+        file = _file;
+        this.key = key;
+        out = new StorageNativeOutputStream(file,key);
+    }
+
+    @Override
+    public void write(byte[] b, int off, int len)  throws java.io.IOException{
+        out.write(key,file,b, off, len);
+    }
+
+    @Override
+    public void write(byte[] b)  throws java.io.IOException{
+        out.write(key,file,b);
+    }
+
+    @Override
+    public void close()  throws java.io.IOException{
+        out.close(key,file);
+    }
+
+    @Override
+    public void write(int b)  throws java.io.IOException{
+        out.write(key,file,b);
+    }
+
+    @Override
+    public void flush()  throws java.io.IOException{
+        out.flush(key,file);
+    }
+
+    public void sync()  throws java.io.IOException{
+        out.sync(key,file);
+    }
+}
diff --git a/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeStorageAccess.java b/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeStorageAccess.java
new file mode 100644
index 0000000000..5a9bc8bb6c
--- /dev/null
+++ b/connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeStorageAccess.java
@@ -0,0 +1,62 @@
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+package com.sun.star.sdbcx.comp.hsqldb;
+
+public class NativeStorageAccess {
+    static { NativeLibraries.load(); }
+
+    public static final int READ            = 1;
+    private static final int SEEKABLE        = 2;
+    private static final int SEEKABLEREAD    = 3;
+    public static final int WRITE           = 4;
+    private static final int READWRITE       = 7;
+    public static final int TRUNCATE        = 8;
+
+    /** Creates a new instance of StorageAccess */
+    public NativeStorageAccess(String name,String _mode,Object key) throws java.io.IOException{
+        try {
+            int mode = NativeStorageAccess.SEEKABLEREAD;
+            if ( _mode.equals("rw") )
+                mode = NativeStorageAccess.READWRITE | NativeStorageAccess.SEEKABLE;
+
+            openStream(name, (String)key, mode);
+        } catch(Exception ex1){
+            java.io.IOException ex2 = new java.io.IOException();
+            ex2.initCause(ex1);
+            throw ex2;
+        }
+    }
+    private native void openStream(String name,String key, int mode);
+    public native void close(String name,String key) throws java.io.IOException;
+
+    public native long getFilePointer(String name,String key) throws java.io.IOException;
+
+    public native long length(String name,String key) throws java.io.IOException;
+
+    public native int read(String name,String key) throws java.io.IOException;
+
+    public native int read(String name,String key,byte[] b, int off, int len) throws java.io.IOException;
+
+
+
+    public native void seek(String name,String key,long position) throws java.io.IOException;
+
+    public native void write(String name,String key,byte[] b, int offset, int length) throws java.io.IOException;
+
+
+}
diff --git a/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageAccess.java b/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageAccess.java
new file mode 100644
index 0000000000..6a53d110e6
--- /dev/null
+++ b/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageAccess.java
@@ -0,0 +1,126 @@
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+package com.sun.star.sdbcx.comp.hsqldb;
+
+@SuppressWarnings("ucd")
+public class StorageAccess implements org.hsqldb.lib.Storage {
+    String key;
+    String name;
+    boolean readonly;
+    NativeStorageAccess access;
+    /** Creates a new instance of StorageAccess */
+    public StorageAccess(String name,Boolean readonly,Object key) throws java.io.IOException{
+        this.key = (String)key;
+        this.name = name;
+        this.readonly = readonly.booleanValue();
+        try {
+            access = new NativeStorageAccess(name,
+                    this.readonly ? "r" : "rw"
+                    ,key);
+        } catch(Exception ex1){
+            java.io.IOException ex2 = new java.io.IOException();
+            ex2.initCause(ex1);
+            throw ex2;
+        }
+    }
+    public void close() throws java.io.IOException{
+        access.close(name,key);
+    }
+
+    public long getFilePointer() throws java.io.IOException{
+        return access.getFilePointer(name,key);
+    }
+
+    public long length() throws java.io.IOException{
+        return access.length(name,key);
+    }
+
+    public int read() throws java.io.IOException{
+        return access.read(name,key);
+    }
+
+    public void read(byte[] b, int off, int len) throws java.io.IOException{
+        access.read(name,key,b,off,len);
+    }
+
+    // based on the same code that reads an int from the .data file in HSQLDB
+    public int readInt() throws java.io.IOException{
+        byte [] tmp = new byte [4];
+
+        int count = access.read(name,key,tmp,0, 4);
+
+        if (count != 4){
+            throw new java.io.IOException();
+        }
+
+        count = 0;
+        int ch0 = tmp[count++] & 0xff;
+        int ch1 = tmp[count++] & 0xff;
+        int ch2 = tmp[count++] & 0xff;
+        int ch3 = tmp[count] & 0xff;
+
+        return ((ch0 << 24) + (ch1 << 16) + (ch2 << 8) + (ch3));
+    }
+
+    public void seek(long position) throws java.io.IOException{
+        access.seek(name,key,position);
+    }
+
+    public void write(byte[] b, int offset, int length) throws java.io.IOException{
+        access.write(name,key,b,offset,length);
+    }
+
+    public void writeInt(int v) throws java.io.IOException{
+        byte [] oneByte = new byte [4];
+        oneByte[0] = (byte) ((v >>> 24) & 0xFF);
+        oneByte[1] = (byte) ((v >>> 16) & 0xFF);
+        oneByte[2] = (byte) ((v >>>  8) & 0xFF);
+        oneByte[3] = (byte) ((v >>>  0) & 0xFF);
+
+        write(oneByte,0,4);
+    }
+
+    public boolean isReadOnly() {
+        return readonly;
+    }
+
+    @SuppressWarnings("cast")
+    public long readLong() throws java.io.IOException {
+        return (((long) readInt()) << 32) + (((long) readInt()) & 0xFFFFFFFFL);
+    }
+
+    public boolean wasNio() {
+        return false;
+    }
+
+    public void writeLong(long v) throws java.io.IOException {
+        byte [] oneByte = new byte [8];
+
+        oneByte[0] = (byte) ((v >>> 56) & 0xFF);
+        oneByte[1] = (byte) ((v >>> 48) & 0xFF);
+        oneByte[2] = (byte) ((v >>> 40) & 0xFF);
+        oneByte[3] = (byte) ((v >>> 32) & 0xFF);
+        oneByte[4] = (byte) ((v >>> 24) & 0xFF);
+        oneByte[5] = (byte) ((v >>> 16) & 0xFF);
+        oneByte[6] = (byte) ((v >>>  8) & 0xFF);
+        oneByte[7] = (byte) ((v >>>  0) & 0xFF);
+
+        write(oneByte,0,8);
+    }
+}
diff --git a/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageFileAccess.java b/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageFileAccess.java
new file mode 100644
index 0000000000..0dd640c4ec
--- /dev/null
+++ b/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageFileAccess.java
@@ -0,0 +1,90 @@
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+package com.sun.star.sdbcx.comp.hsqldb;
+
+import org.hsqldb.lib.FileAccess;
+import org.hsqldb.lib.FileSystemRuntimeException;
+
+@SuppressWarnings("ucd")
+public class StorageFileAccess implements org.hsqldb.lib.FileAccess{
+    static { NativeLibraries.load(); }
+
+    String ds_name;
+    String key;
+    /** Creates a new instance of StorageFileAccess */
+    public StorageFileAccess(Object key) throws java.lang.Exception{
+        this.key = (String)key;
+    }
+
+    public void createParentDirs(String filename) {
+    }
+
+    public boolean isStreamElement(String elementName)  {
+        return isStreamElement(key,elementName);
+    }
+
+    public java.io.InputStream openInputStreamElement(String streamName) throws java.io.IOException {
+        return new NativeInputStreamHelper(key,streamName);
+    }
+
+    public java.io.OutputStream openOutputStreamElement(String streamName) throws java.io.IOException {
+        return new NativeOutputStreamHelper(key,streamName);
+    }
+
+    public void removeElement(String filename) throws java.util.NoSuchElementException {
+        try {
+            if ( isStreamElement(key,filename) )
+                removeElement(key,filename);
+        } catch (java.io.IOException e) {
+           throw new FileSystemRuntimeException( e );
+       }
+    }
+
+    public void renameElement(String oldName, String newName) throws java.util.NoSuchElementException {
+        try {
+            if ( isStreamElement(key,oldName) ){
+                removeElement(key,newName);
+                renameElement(key,oldName, newName);
+            }
+       } catch (java.io.IOException e) {
+           throw new FileSystemRuntimeException( e );
+       }
+    }
+
+    private static class FileSync implements FileAccess.FileSync
+    {
+        private final NativeOutputStreamHelper os;
+        private FileSync(NativeOutputStreamHelper _os)
+        {
+            os = _os;
+        }
+        public void sync() throws java.io.IOException
+        {
+            os.sync();
+        }
+    }
+
+    public FileAccess.FileSync getFileSync(java.io.OutputStream os) throws java.io.IOException
+    {
+        return new FileSync((NativeOutputStreamHelper)os);
+    }
+
+    static native boolean isStreamElement(String key,String elementName);
+    static native void removeElement(String key,String filename) throws java.util.NoSuchElementException, java.io.IOException;
+    static native void renameElement(String key,String oldName, String newName) throws java.util.NoSuchElementException, java.io.IOException;
+}
diff --git a/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageNativeInputStream.java b/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageNativeInputStream.java
new file mode 100644
index 0000000000..cf147c9b50
--- /dev/null
+++ b/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageNativeInputStream.java
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+package com.sun.star.sdbcx.comp.hsqldb;
+
+public class StorageNativeInputStream {
+    static { NativeLibraries.load(); }
+
+    /** Creates a new instance of StorageNativeInputStream */
+    public StorageNativeInputStream(String key,String _file) {
+        openStream(key,_file, NativeStorageAccess.READ);
+    }
+    private native void openStream(String key,String name, int mode);
+    public native int read(String key,String name) throws java.io.IOException;
+    public native int read(String key,String name,byte[] b, int off, int len) throws java.io.IOException;
+    public native void close(String key,String name) throws java.io.IOException;
+    public native long skip(String key,String name,long n) throws java.io.IOException;
+    public native int available(String key,String name) throws java.io.IOException;
+    public native int read(String key,String name,byte[] b) throws java.io.IOException;
+}
diff --git a/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageNativeOutputStream.java b/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageNativeOutputStream.java
new file mode 100644
index 0000000000..8cc6cb07d3
--- /dev/null
+++ b/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageNativeOutputStream.java
@@ -0,0 +1,145 @@
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+package com.sun.star.sdbcx.comp.hsqldb;
+
+public class StorageNativeOutputStream {
+    static { NativeLibraries.load(); }
+
+    /** Creates a new instance of StorageNativeOutputStream */
+    public StorageNativeOutputStream(String _name, Object key) {
+        openStream(_name, (String)key, NativeStorageAccess.WRITE | NativeStorageAccess.TRUNCATE);
+    }
+
+    private native void openStream(String name,String key, int mode);
+    /**
+     * Writes <code>len</code> bytes from the specified byte array
+     * starting at offset <code>off</code> to this output stream.
+     * The general contract for <code>write(b, off, len)</code> is that
+     * some of the bytes in the array <code>b</code> are written to the
+     * output stream in order; element <code>b[off]</code> is the first
+     * byte written and <code>b[off+len-1]</code> is the last byte written
+     * by this operation.
+     * <p>
+     * The <code>write</code> method of <code>OutputStream</code> calls
+     * the write method of one argument on each of the bytes to be
+     * written out. Subclasses are encouraged to override this method and
+     * provide a more efficient implementation.
+     * <p>
+     * If <code>b</code> is <code>null</code>, a
+     * <code>NullPointerException</code> is thrown.
+     * <p>
+     * If <code>off</code> is negative, or <code>len</code> is negative, or
+     * <code>off+len</code> is greater than the length of the array
+     * <code>b</code>, then an <tt>IndexOutOfBoundsException</tt> is thrown.
+     * @param key The name of the data source.
+     * @param _file The name of the file to write to.
+     * @param b the data.
+     * @param off the start offset in the data.
+     * @param len the number of bytes to write.
+     * @exception java.io.IOException if an I/O error occurs. In particular,
+     *             an <code>IOException</code> is thrown if the output
+     *             stream is closed.
+     */
+    public native void write(String key,String _file,byte[] b, int off, int len) throws java.io.IOException;
+
+    /**
+     * Writes <code>b.length</code> bytes from the specified byte array
+     * to this output stream. The general contract for <code>write(b)</code>
+     * is that it should have exactly the same effect as the call
+     * <code>write(b, 0, b.length)</code>.
+     *
+     * @param      b   the data.
+     * @exception  java.io.IOException  if an I/O error occurs.
+     * @see        java.io.OutputStream#write(byte[], int, int)
+     */
+    public native void write(String key,String _file,byte[] b) throws java.io.IOException;
+
+    /**
+     * Closes this output stream and releases any system resources
+     * associated with this stream. The general contract of <code>close</code>
+     * is that it closes the output stream. A closed stream cannot perform
+     * output operations and cannot be reopened.
+     * <p>
+     * The <code>close</code> method of <code>OutputStream</code> does nothing.
+     * @param key The name of the data source.
+     * @param _file The name of the file to write to.
+     *
+     * @exception  java.io.IOException  if an I/O error occurs.
+     */
+    public native void close(String key,String _file) throws java.io.IOException;
+
+    /**
+     * Writes the specified byte to this output stream. The general
+     * contract for <code>write</code> is that one byte is written
+     * to the output stream. The byte to be written is the eight
+     * low-order bits of the argument <code>b</code>. The 24
+     * high-order bits of <code>b</code> are ignored.
+     * <p>
+     * Subclasses of <code>OutputStream</code> must provide an
+     * implementation for this method.
+     *
+     * @param key The name of the data source.
+     * @param _file The name of the file to write to.
+     * @param      b   the <code>byte</code>.
+     * @exception  java.io.IOException  if an I/O error occurs. In particular,
+     *             an <code>IOException</code> may be thrown if the
+     *             output stream has been closed.
+     */
+    public native void write(String key,String _file,int b) throws java.io.IOException;
+
+    /**
+     * Flushes this output stream and forces any buffered output bytes
+     * to be written out. The general contract of <code>flush</code> is
+     * that calling it is an indication that, if any bytes previously
+     * written have been buffered by the implementation of the output
+     * stream, such bytes should immediately be written to their
+     * intended destination.
+     * <p>
+     * The <code>flush</code> method of <code>OutputStream</code> does nothing.
+     * @param key The name of the data source.
+     * @param _file The name of the file to write to.
+     *
+     * @exception  java.io.IOException  if an I/O error occurs.
+     */
+    public native void flush(String key,String _file) throws java.io.IOException;
+
+    /**
+     * Force all system buffers to synchronize with the underlying
+     * device.  This method returns after all modified data and
+     * attributes have been written to the relevant device(s).
+     *
+     * sync is meant to be used by code that requires physical
+     * storage (such as a file) to be in a known state  For
+     * example, a class that provided a simple transaction facility
+     * might use sync to ensure that all changes to a file caused
+     * by a given transaction were recorded on a storage medium.
+     *
+     * sync only affects buffers downstream.  If
+     * any in-memory buffering is being done by the application (for
+     * example, by a BufferedOutputStream object), those buffers must
+     * be flushed (for example, by invoking
+     * OutputStream.flush) before that data will be affected by sync.
+     *
+     * @exception java.io.IOException
+     *        Thrown when the buffers cannot be flushed,
+     *        or because the system cannot guarantee that all the
+     *        buffers have been synchronized with physical media.
+     */
+    public native void sync(String key,String _file) throws java.io.IOException;
+
+}