AbstractFileChunk.java

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/*
 * Autopsy Forensic Browser
 *
 * Copyright 2011-2016 Basis Technology Corp.
 * Contact: carrier <at> sleuthkit <dot> org
 *
 * Licensed 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.sleuthkit.autopsy.keywordsearch;

import java.nio.charset.Charset;
import org.sleuthkit.autopsy.keywordsearch.Ingester.IngesterException;

final class AbstractFileChunk {

    private final int chunkNumber;
    private final TextExtractor textExtractor;

    AbstractFileChunk(TextExtractor textExtractor, int chunkNumber) {
        this.textExtractor = textExtractor;
        this.chunkNumber = chunkNumber;
    }

    TextExtractor getTextExtractor() {
        return textExtractor;
    }

    int getChunkNumber() {
        return chunkNumber;
    }

    String getChunkId() {
        return Server.getChunkIdString(this.textExtractor.getSourceFile().getId(), this.chunkNumber);
    }

    void index(Ingester ingester, byte[] chunkBytes, long chunkSize, Charset charSet) throws IngesterException {
        ByteContentStream bcs = new ByteContentStream(chunkBytes, chunkSize, textExtractor.getSourceFile(), charSet);
        try {
            ingester.ingest(this, bcs, chunkBytes.length);
        } catch (Exception ex) {
            throw new IngesterException(String.format("Error ingesting (indexing) file chunk: %s", getChunkId()), ex);
        }
    }

}