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- /* ====================================================================
- 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.
- *
- * @author Daniel Noll
- */
- @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 );
- }
-
- }
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