| /* ==================================================================== |
| 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 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| ==================================================================== */ |
| package org.apache.poi.hwpf.model; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.poi.util.Internal; |
| |
| /** |
| * String table containing the history of the last few revisions ("saves") of |
| * the document. Read-only for the time being. |
| */ |
| @Internal |
| public final class SavedByTable |
| { |
| /** |
| * Array of entries. |
| */ |
| private SavedByEntry[] entries; |
| |
| /** |
| * Constructor to read the table from the table stream. |
| * |
| * @param tableStream |
| * the table stream. |
| * @param offset |
| * the offset into the byte array. |
| * @param size |
| * the size of the table in the byte array. |
| */ |
| public SavedByTable( byte[] tableStream, int offset, int size ) |
| { |
| String[] strings = SttbUtils.readSttbSavedBy( tableStream, offset ); |
| int numEntries = strings.length / 2; |
| entries = new SavedByEntry[numEntries]; |
| for ( int i = 0; i < numEntries; i++ ) |
| { |
| entries[i] = new SavedByEntry( strings[i * 2], strings[i * 2 + 1] ); |
| } |
| } |
| |
| /** |
| * Gets the entries. The returned list cannot be modified. |
| * |
| * @return the list of entries. |
| */ |
| public List<SavedByEntry> getEntries() |
| { |
| return Collections.unmodifiableList( Arrays.asList( entries ) ); |
| } |
| |
| /** |
| * Writes this table to the table stream. |
| * |
| * @param tableStream |
| * the table stream to write to. |
| * @throws IOException |
| * if an error occurs while writing. |
| */ |
| public void writeTo( ByteArrayOutputStream tableStream ) throws IOException |
| { |
| String[] toSave = new String[entries.length * 2]; |
| int counter = 0; |
| for ( SavedByEntry entry : entries ) |
| { |
| toSave[counter++] = entry.getUserName(); |
| toSave[counter++] = entry.getSaveLocation(); |
| } |
| SttbUtils.writeSttbSavedBy( toSave, tableStream ); |
| } |
| |
| } |