diff options
Diffstat (limited to 'xmerge/source/xmerge/java/org/openoffice/xmerge/converter/palm/PdbHeader.java')
| -rw-r--r-- | xmerge/source/xmerge/java/org/openoffice/xmerge/converter/palm/PdbHeader.java | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/xmerge/source/xmerge/java/org/openoffice/xmerge/converter/palm/PdbHeader.java b/xmerge/source/xmerge/java/org/openoffice/xmerge/converter/palm/PdbHeader.java new file mode 100644 index 000000000000..2f9d389e80cc --- /dev/null +++ b/xmerge/source/xmerge/java/org/openoffice/xmerge/converter/palm/PdbHeader.java @@ -0,0 +1,162 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +package org.openoffice.xmerge.converter.palm; + +import java.io.DataInput; +import java.io.DataOutput; +import java.io.IOException; + +/** + * <p>Class used only internally by <code>PdbEncoder</code> and + * <code>PdbDecoder</code> to store, read and write a PDB header.</p> + * + * <p>Note that fields are intended to be accessible only at the + * package level.</p> + * + * <p>Some of the fields are internally represented using a + * larger type since Java does not have unsigned types. + * Some are not since they are not relevant for now. + * The <code>read</code> and <code>write</code> methods should + * handle them properly.</p> + * + * @author Herbie Ong + * @see PalmDB + * @see Record + */ +final class PdbHeader { + + + /** Name of the database. 32 bytes. */ + byte[] pdbName = null; + + /** + * Flags for the database. Palm UInt16. Unsignedness should be + * irrelevant. + */ + short attribute = 0; + + /** Application-specific version for the database. Palm UInt16. */ + int version = 0; + + /** Date created. Palm UInt32. */ + long creationDate = 0; + + /** Date last modified. Palm UInt32. */ + long modificationDate = 0; + + /** Date last backup. Palm UInt32. */ + long lastBackupDate = 0; + + /** + * Incremented every time a <code>Record</code> is + * added, deleted or modified. Palm UInt32. + */ + long modificationNumber = 0; + + /** Optional field. Palm UInt32. Unsignedness should be irrelevant. */ + int appInfoID = 0; + + /** Optional field. Palm UInt32. Unsignedness should be irrelevant. */ + int sortInfoID = 0; + + /** Database type ID. Palm UInt32. Unsignedness should be irrelevant. */ + int typeID = 0; + + /** Database creator ID. Palm UInt32. Unsignedness should be irrelevant. */ + int creatorID = 0; + + /** ??? */ + int uniqueIDSeed = 0; + + /** See numRecords. 4 bytes. */ + int nextRecordListID = 0; + + /** + * Number of Records stored in the database header. + * If all the <code>Record</code> entries cannot fit in the header, + * then <code>nextRecordList</code> has the local ID of a + * RecordList that contains the next set of <code>Record</code>. + * Palm UInt16. + */ + int numRecords = 0; + + + /** + * Read in the data for the PDB header. Need to + * preserve the unsigned value for some of the fields. + * + * @param di A <code>DataInput</code> object. + * + * @throws IOException If any I/O error occurs. + */ + public void read(DataInput in) throws IOException { + + pdbName = new byte[PalmDB.NAME_LENGTH]; + in.readFully(pdbName); + attribute = in.readShort(); + version = in.readUnsignedShort(); + creationDate = ((long) in.readInt()) & 0xffffffffL; + modificationDate = ((long) in.readInt()) & 0xffffffffL; + lastBackupDate = ((long) in.readInt()) & 0xffffffffL; + modificationNumber = ((long) in.readInt()) & 0xffffffffL; + appInfoID = in.readInt(); + sortInfoID = in.readInt(); + creatorID = in.readInt(); + typeID = in.readInt(); + uniqueIDSeed = in.readInt(); + nextRecordListID = in.readInt(); + numRecords = in.readUnsignedShort(); + } + + + /** + * Write out PDB header data. + * + * @param out A <code>DataOutput</code> object. + * + * @throws IOException If any I/O error occurs. + */ + public void write(DataOutput out) throws IOException { + + out.write(pdbName); + out.writeShort(attribute); + out.writeShort(version); + out.writeInt((int) creationDate); + out.writeInt((int) modificationDate); + out.writeInt((int) lastBackupDate); + out.writeInt((int) modificationNumber); + out.writeInt(appInfoID); + out.writeInt(sortInfoID); + out.writeInt(typeID); + out.writeInt(creatorID); + out.writeInt(uniqueIDSeed); + out.writeInt(nextRecordListID); + out.writeShort(numRecords); + } +} + |