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HSQLDB example source code file (ScriptWriterZipped.java)
The HSQLDB ScriptWriterZipped.java source code/* Copyright (c) 2001-2008, The HSQL Development Group * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of the HSQL Development Group nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG, * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.hsqldb.scriptio; import java.io.IOException; import java.util.zip.Deflater; import java.util.zip.DeflaterOutputStream; import org.hsqldb.Database; import org.hsqldb.HsqlException; import org.hsqldb.Trace; import org.hsqldb.lib.FileAccess; /** * * @author fredt@users * @since 1.7.2 * @version 1.7.2 */ class ScriptWriterZipped extends ScriptWriterBinary { private static final int bufferSize = 1 << 15; ScriptWriterZipped(Database db, String file, boolean includeCached, boolean newFile) throws HsqlException { super(db, file, includeCached, newFile); } /** * Override the underlying method with no operation. */ public void sync() {} protected void openFile() throws HsqlException { try { FileAccess fa = database.getFileAccess(); java.io.OutputStream fos = fa.openOutputStreamElement(outFile); outDescriptor = fa.getFileSync(fos); fileStreamOut = new DeflaterOutputStream(fos, new Deflater(Deflater.DEFAULT_COMPRESSION), bufferSize); } catch (IOException e) { throw Trace.error(Trace.FILE_IO_ERROR, Trace.Message_Pair, new Object[] { e.toString(), outFile }); } } /** * This may not really be necessary, unless we add implementations where * non-compressed data is added to the end of the copressed part. */ protected void finishStream() throws IOException { ((DeflaterOutputStream) fileStreamOut).finish(); fileStreamOut.flush(); } } Other HSQLDB examples (source code examples)Here is a short list of links related to this HSQLDB ScriptWriterZipped.java source code file: |
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