mirror of
https://github.com/DSpace/DSpace.git
synced 2025-10-15 14:03:17 +00:00
Move DSpace kernel codebase to dspace-api
git-svn-id: http://scm.dspace.org/svn/repo/trunk@1957 9c30dcfa-912a-0410-8fc2-9e0234be79fd
This commit is contained in:
Mark Diggory
@@ -0,0 +1,595 @@
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/*
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* Copyright (c) 2004-2005, Hewlett-Packard Company and Massachusetts
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||||
* Institute of Technology. All rights reserved.
|
||||
*
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||||
* 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 Hewlett-Packard Company nor the name of the
|
||||
* Massachusetts Institute of Technology nor the names of their
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
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||||
* 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 THE COPYRIGHT
|
||||
* HOLDERS 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
|
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* DAMAGE.
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*/
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package org.dspace.checker;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.sql.Timestamp;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.List;
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||||
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import org.apache.log4j.Logger;
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import org.dspace.storage.rdbms.DatabaseManager;
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||||
/**
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* <p>
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* Database Access Object for bitstream information (metadata). Also performs
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* the needed insert/update/delete commands on the database for the checksum
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||||
* checker.
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* </p>
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*
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* @author Jim Downing
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* @author Grace Carpenter
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* @author Nathan Sarr
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*
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||||
*/
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||||
public final class BitstreamInfoDAO extends DAOSupport
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||||
{
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/**
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* This value should be returned by <code>next()</code> to indicate that
|
||||
* there are no more values.
|
||||
*/
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||||
public static int SENTINEL = -1;
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/** Query that gets bitstream information for a specified ID. */
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||||
private static final String FIND_BY_BITSTREAM_ID = "select bitstream.deleted, bitstream.store_number, bitstream.size_bytes, "
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+ "bitstreamformatregistry.short_description, bitstream.bitstream_id, "
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+ "bitstream.user_format_description, bitstream.internal_id, "
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+ "bitstream.source, bitstream.checksum_algorithm, bitstream.checksum, "
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+ "bitstream.name, most_recent_checksum.last_process_end_date,"
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+ "most_recent_checksum.to_be_processed "
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+ "from bitstream left outer join bitstreamformatregistry on "
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+ "bitstream.bitstream_format_id = bitstreamformatregistry.bitstream_format_id, "
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+ "most_recent_checksum "
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+ "where bitstream.bitstream_id = ? "
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+ "and bitstream.bitstream_id = most_recent_checksum.bitstream_id;";
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/**
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* Query that selects bitstream IDs from bitstream table that are not yet in
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* the most_recent_checksum table, and inserts them into
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* most_recent_checksum.
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*/
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private static final String INSERT_MISSING_CHECKSUM_BITSTREAMS = "insert into most_recent_checksum ( "
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+ "bitstream_id, to_be_processed, expected_checksum, current_checksum, "
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+ "last_process_start_date, last_process_end_date, "
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+ "checksum_algorithm, matched_prev_checksum, result ) "
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+ "select bitstream.bitstream_id, "
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+ "CASE WHEN bitstream.deleted = false THEN true ELSE false END, "
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+ "CASE WHEN bitstream.checksum IS NULL THEN '' ELSE bitstream.checksum END, "
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+ "CASE WHEN bitstream.checksum IS NULL THEN '' ELSE bitstream.checksum END, "
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+ "?, ?, CASE WHEN bitstream.checksum_algorithm IS NULL "
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+ "THEN 'MD5' ELSE bitstream.checksum_algorithm END, true, "
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+ "CASE WHEN bitstream.deleted = true THEN 'BITSTREAM_MARKED_DELETED' else 'CHECKSUM_MATCH' END "
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+ "from bitstream where not exists( "
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+ "select 'x' from most_recent_checksum "
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+ "where most_recent_checksum.bitstream_id = bitstream.bitstream_id );";
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/**
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* Query that updates most_recent_checksum table with checksum result for
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* specified bitstream ID.
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*/
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private static final String UPDATE_CHECKSUM = "UPDATE most_recent_checksum "
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+ "SET current_checksum = ?, expected_checksum = ?, matched_prev_checksum = ?, to_be_processed= ?, "
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+ "last_process_start_date=?, last_process_end_date=?, result=? WHERE bitstream_id = ? ";
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/**
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* Deletes from the most_recent_checksum where the bitstream id is found
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*/
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private static final String DELETE_BITSTREAM_INFO = "Delete from most_recent_checksum "
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+ "where bitstream_id = ?";
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/**
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* This selects the next bitstream in order of last processing end date. The
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* timestamp is truncated to milliseconds this is because the Date for java
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* does not support nanoseconds and milliseconds were considered accurate
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* enough
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*/
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public static final String GET_OLDEST_BITSTREAM = "select bitstream_id "
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+ "from most_recent_checksum " + "where to_be_processed = true "
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+ "order by date_trunc('milliseconds', last_process_end_date), "
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+ "bitstream_id " + "ASC LIMIT 1";
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/**
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* Selects the next bitstream in order of last processing end date, ensuring
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* that no bitstream is checked more than once since the date parameter
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* used.
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*/
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public static final String GET_OLDEST_BITSTREAM_DATE = "select bitstream_id "
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+ "from most_recent_checksum "
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+ "where to_be_processed = true "
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+ "and last_process_start_date < ? "
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+ "order by date_trunc('milliseconds', last_process_end_date), "
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+ "bitstream_id " + "ASC LIMIT 1";
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|
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/** SQL query to retrieve bitstreams for a given item. */
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private static final String ITEM_BITSTREAMS = "SELECT b2b.bitstream_id "
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+ "FROM bundle2bitstream b2b, item2bundle i2b WHERE "
|
||||
+ "b2b.bundle_id=i2b.bundle_id AND i2b.item_id=?";
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/** SQL query to retrieve bitstreams for a given collection. */
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private static final String COLLECTION_BITSTREAMS = "SELECT b2b.bitstream_id "
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+ "FROM bundle2bitstream b2b, item2bundle i2b, collection2item c2i WHERE "
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+ "b2b.bundle_id=i2b.bundle_id AND c2i.item_id=i2b.item_id AND c2i.collection_id=?";
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||||
/** SQL query to retrieve bitstreams for a given community. */
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private static final String COMMUNITY_BITSTREAMS = "SELECT b2b.bitstream_id FROM bundle2bitstream b2b, item2bundle i2b, collection2item c2i, community2collection c2c WHERE b2b.bundle_id=i2b.bundle_id AND c2i.item_id=i2b.item_id AND c2c.collection_id=c2i.collection_id AND c2c.community_id=?";
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||||
/** Standard Log4J logger. */
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private static final Logger LOG = Logger.getLogger(BitstreamInfoDAO.class);
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/**
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* History data access object for checksum_history table
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*/
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private ChecksumHistoryDAO checksumHistoryDAO;
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||||
/**
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* Default constructor
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*/
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public BitstreamInfoDAO()
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{
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checksumHistoryDAO = new ChecksumHistoryDAO();
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}
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/**
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* Updates most_recent_checksum with latest checksum and result of
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* comparison with previous checksum.
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*
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* @param info
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* The BitstreamInfo to update.
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*
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* @throws IllegalArgumentException
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* if the BitstreamInfo given is null.
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||||
*/
|
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public void update(BitstreamInfo info)
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||||
{
|
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if (info == null)
|
||||
{
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throw new IllegalArgumentException(
|
||||
"BitstreamInfo parameter may not be null");
|
||||
}
|
||||
|
||||
Connection conn = null;
|
||||
PreparedStatement stmt = null;
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||||
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try
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||||
{
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conn = DatabaseManager.getConnection();
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stmt = conn.prepareStatement(UPDATE_CHECKSUM);
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stmt.setString(1, (info.getCalculatedChecksum() != null) ? info
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.getCalculatedChecksum() : "");
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stmt.setString(2, info.getStoredChecksum());
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stmt.setBoolean(3, ChecksumCheckResults.CHECKSUM_MATCH.equals(info
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.getChecksumCheckResult()));
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stmt.setBoolean(4, info.getToBeProcessed());
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stmt.setTimestamp(5, new Timestamp(info.getProcessStartDate()
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.getTime()));
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stmt.setTimestamp(6, new Timestamp(info.getProcessEndDate()
|
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.getTime()));
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stmt.setString(7, info.getChecksumCheckResult());
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stmt.setInt(8, info.getBitstreamId());
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stmt.executeUpdate();
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conn.commit();
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}
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catch (SQLException e)
|
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{
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LOG.error("Problem updating checksum row. " + e.getMessage(), e);
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throw new RuntimeException("Problem updating checksum row. "
|
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+ e.getMessage(), e);
|
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}
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finally
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||||
{
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cleanup(stmt, conn);
|
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}
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}
|
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|
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/**
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* Find a bitstream by its id.
|
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*
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* @param id
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* the bitstream id
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*
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* @return the bitstream information needed for checksum validation. Returns
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* null if bitstream info isn't found.
|
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*/
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public BitstreamInfo findByBitstreamId(int id)
|
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{
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Connection conn = null;
|
||||
BitstreamInfo info = null;
|
||||
PreparedStatement prepStmt = null;
|
||||
|
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try
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||||
{
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// create the connection and execute the statement
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conn = DatabaseManager.getConnection();
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prepStmt = conn.prepareStatement(FIND_BY_BITSTREAM_ID);
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prepStmt.setInt(1, id);
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ResultSet rs = prepStmt.executeQuery();
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// if the bitstream is found return it
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if (rs.next())
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{
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info = new BitstreamInfo(rs.getBoolean("deleted"), rs
|
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.getInt("store_number"), rs.getInt("size_bytes"), rs
|
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.getString("short_description"), rs
|
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.getInt("bitstream_id"), rs
|
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.getString("user_format_description"), rs
|
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.getString("internal_id"), rs.getString("source"), rs
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.getString("checksum_algorithm"), rs
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||||
.getString("checksum"), rs.getString("name"), rs
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.getTimestamp("last_process_end_date"), rs
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||||
.getBoolean("to_be_processed"), new Date());
|
||||
}
|
||||
}
|
||||
catch (SQLException e)
|
||||
{
|
||||
LOG.warn("Bitstream metadata could not be retrieved. "
|
||||
+ e.getMessage(), e);
|
||||
}
|
||||
finally
|
||||
{
|
||||
cleanup(prepStmt, conn);
|
||||
}
|
||||
|
||||
return info;
|
||||
}
|
||||
|
||||
/**
|
||||
* Queries the bitstream table for bitstream IDs that are not yet in the
|
||||
* most_recent_checksum table, and inserts them into the
|
||||
* most_recent_checksum and checksum_history tables.
|
||||
*/
|
||||
public void updateMissingBitstreams()
|
||||
{
|
||||
Connection conn = null;
|
||||
PreparedStatement stmt = null;
|
||||
|
||||
try
|
||||
{
|
||||
LOG.debug("updating missing bitstreams");
|
||||
conn = DatabaseManager.getConnection();
|
||||
stmt = conn.prepareStatement(INSERT_MISSING_CHECKSUM_BITSTREAMS);
|
||||
stmt.setTimestamp(1, new java.sql.Timestamp(new Date().getTime()));
|
||||
stmt.setTimestamp(2, new java.sql.Timestamp(new Date().getTime()));
|
||||
stmt.executeUpdate();
|
||||
|
||||
checksumHistoryDAO.updateMissingBitstreams(conn);
|
||||
conn.commit();
|
||||
}
|
||||
catch (SQLException e)
|
||||
{
|
||||
LOG.error(
|
||||
"Problem inserting missing bitstreams. " + e.getMessage(),
|
||||
e);
|
||||
throw new RuntimeException("Problem inserting missing bitstreams. "
|
||||
+ e.getMessage(), e);
|
||||
}
|
||||
finally
|
||||
{
|
||||
cleanup(stmt, conn);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Deletes the bitstream from the most_recent_checksum table if it exist.
|
||||
*
|
||||
* @param id
|
||||
* the bitstream id.
|
||||
*
|
||||
* @return number of records deleted
|
||||
*/
|
||||
protected int deleteBitstreamInfo(int id, Connection conn)
|
||||
{
|
||||
PreparedStatement stmt = null;
|
||||
|
||||
int numDeleted = 0;
|
||||
|
||||
try
|
||||
{
|
||||
stmt = conn.prepareStatement(DELETE_BITSTREAM_INFO);
|
||||
stmt.setInt(1, id);
|
||||
|
||||
numDeleted = stmt.executeUpdate();
|
||||
|
||||
if (numDeleted > 1)
|
||||
{
|
||||
conn.rollback();
|
||||
throw new IllegalStateException(
|
||||
"Too many rows deleted! Number of rows deleted: "
|
||||
+ numDeleted
|
||||
+ " only one row should be deleted for bitstream id "
|
||||
+ id);
|
||||
}
|
||||
}
|
||||
catch (SQLException e)
|
||||
{
|
||||
LOG.error("Problem deleting bitstream. " + e.getMessage(), e);
|
||||
throw new RuntimeException("Problem deleting bitstream. "
|
||||
+ e.getMessage(), e);
|
||||
}
|
||||
finally
|
||||
{
|
||||
cleanup(stmt);
|
||||
}
|
||||
|
||||
return numDeleted;
|
||||
}
|
||||
|
||||
public int deleteBitstreamInfoWithHistory(int id)
|
||||
{
|
||||
Connection conn = null;
|
||||
int numDeleted = 0;
|
||||
|
||||
try
|
||||
{
|
||||
conn = DatabaseManager.getConnection();
|
||||
deleteBitstreamInfo(id, conn);
|
||||
checksumHistoryDAO.deleteHistoryForBitstreamInfo(id, conn);
|
||||
conn.commit();
|
||||
}
|
||||
catch (SQLException e)
|
||||
{
|
||||
LOG.error("Problem deleting bitstream. " + e.getMessage(), e);
|
||||
throw new RuntimeException("Problem deleting bitstream. "
|
||||
+ e.getMessage(), e);
|
||||
}
|
||||
finally
|
||||
{
|
||||
cleanup(conn);
|
||||
}
|
||||
|
||||
return numDeleted;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the oldest bitstream in the most recent checksum table. If more than
|
||||
* one found the first one in the result set is returned.
|
||||
*
|
||||
* @return the bitstream id or -1 if the no bitstreams are found
|
||||
*
|
||||
*/
|
||||
public int getOldestBitstream()
|
||||
{
|
||||
Connection conn = null;
|
||||
PreparedStatement prepStmt = null;
|
||||
ResultSet rs = null;
|
||||
|
||||
try
|
||||
{
|
||||
|
||||
conn = DatabaseManager.getConnection();
|
||||
prepStmt = conn.prepareStatement(GET_OLDEST_BITSTREAM);
|
||||
rs = prepStmt.executeQuery();
|
||||
if (rs.next())
|
||||
{
|
||||
return rs.getInt(1);
|
||||
}
|
||||
else
|
||||
{
|
||||
return SENTINEL;
|
||||
}
|
||||
}
|
||||
catch (SQLException e)
|
||||
{
|
||||
LOG.error("Problem with get oldest bitstream " + e.getMessage(), e);
|
||||
throw new RuntimeException("Oldest bitstream error. "
|
||||
+ e.getMessage(), e);
|
||||
|
||||
}
|
||||
finally
|
||||
{
|
||||
cleanup(prepStmt, conn);
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the oldest bistream that in the set of bitstreams that are less
|
||||
* than the specified date. If no bitstreams are found -1 is returned.
|
||||
*
|
||||
* @param lessThanDate
|
||||
* @return id of olded bitstream or -1 if not bistreams are found
|
||||
*/
|
||||
public int getOldestBitstream(Timestamp lessThanDate)
|
||||
{
|
||||
Connection conn = null;
|
||||
PreparedStatement prepStmt = null;
|
||||
ResultSet rs = null;
|
||||
|
||||
try
|
||||
{
|
||||
conn = DatabaseManager.getConnection();
|
||||
prepStmt = conn.prepareStatement(GET_OLDEST_BITSTREAM_DATE);
|
||||
prepStmt.setTimestamp(1, lessThanDate);
|
||||
rs = prepStmt.executeQuery();
|
||||
if (rs.next())
|
||||
{
|
||||
return rs.getInt(1);
|
||||
}
|
||||
else
|
||||
{
|
||||
return SENTINEL;
|
||||
}
|
||||
}
|
||||
catch (SQLException e)
|
||||
{
|
||||
LOG.error("get oldest bitstream less than date " + e.getMessage(),
|
||||
e);
|
||||
throw new RuntimeException("get oldest bitstream less than date. "
|
||||
+ e.getMessage(), e);
|
||||
|
||||
}
|
||||
finally
|
||||
{
|
||||
cleanup(prepStmt, conn);
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the bitstream ids for a given Item
|
||||
*
|
||||
* @param itemId
|
||||
* @return the list of bitstream ids for this item
|
||||
*/
|
||||
public List getItemBitstreams(int itemId)
|
||||
{
|
||||
List ids = new ArrayList();
|
||||
|
||||
Connection conn = null;
|
||||
PreparedStatement ps = null;
|
||||
ResultSet rs = null;
|
||||
|
||||
try
|
||||
{
|
||||
conn = DatabaseManager.getConnection();
|
||||
ps = conn.prepareStatement(ITEM_BITSTREAMS);
|
||||
ps.setInt(1, itemId);
|
||||
|
||||
rs = ps.executeQuery();
|
||||
|
||||
while (rs.next())
|
||||
{
|
||||
ids.add(new Integer(rs.getInt(1)));
|
||||
}
|
||||
|
||||
}
|
||||
catch (SQLException e)
|
||||
{
|
||||
LOG.error("get item bitstreams " + e.getMessage(), e);
|
||||
throw new RuntimeException(
|
||||
"get item bitstreams. " + e.getMessage(), e);
|
||||
|
||||
}
|
||||
finally
|
||||
{
|
||||
cleanup(ps, conn, rs);
|
||||
}
|
||||
|
||||
return ids;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the bitstream ids for a given collection
|
||||
*
|
||||
* @param itemId
|
||||
* @return the list of bitstream ids for this item
|
||||
*/
|
||||
public List getCollectionBitstreams(int collectionId)
|
||||
{
|
||||
List ids = new ArrayList();
|
||||
|
||||
Connection conn = null;
|
||||
PreparedStatement ps = null;
|
||||
ResultSet rs = null;
|
||||
|
||||
try
|
||||
{
|
||||
conn = DatabaseManager.getConnection();
|
||||
ps = conn.prepareStatement(COLLECTION_BITSTREAMS);
|
||||
ps.setInt(1, collectionId);
|
||||
|
||||
rs = ps.executeQuery();
|
||||
|
||||
while (rs.next())
|
||||
{
|
||||
ids.add(new Integer(rs.getInt(1)));
|
||||
}
|
||||
|
||||
}
|
||||
catch (SQLException e)
|
||||
{
|
||||
LOG.error("get item bitstreams " + e.getMessage(), e);
|
||||
throw new RuntimeException(
|
||||
"get item bitstreams. " + e.getMessage(), e);
|
||||
|
||||
}
|
||||
finally
|
||||
{
|
||||
cleanup(ps, conn, rs);
|
||||
}
|
||||
|
||||
return ids;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the bitstream ids for a given community
|
||||
*
|
||||
* @param itemId
|
||||
* @return the list of bitstream ids for this item
|
||||
*/
|
||||
public List getCommunityBitstreams(int communityId)
|
||||
{
|
||||
List ids = new ArrayList();
|
||||
|
||||
Connection conn = null;
|
||||
PreparedStatement ps = null;
|
||||
ResultSet rs = null;
|
||||
|
||||
try
|
||||
{
|
||||
conn = DatabaseManager.getConnection();
|
||||
ps = conn.prepareStatement(COMMUNITY_BITSTREAMS);
|
||||
ps.setInt(1, communityId);
|
||||
|
||||
rs = ps.executeQuery();
|
||||
|
||||
while (rs.next())
|
||||
{
|
||||
ids.add(new Integer(rs.getInt(1)));
|
||||
}
|
||||
|
||||
}
|
||||
catch (SQLException e)
|
||||
{
|
||||
LOG.error("get item bitstreams " + e.getMessage(), e);
|
||||
throw new RuntimeException(
|
||||
"get item bitstreams. " + e.getMessage(), e);
|
||||
|
||||
}
|
||||
finally
|
||||
{
|
||||
cleanup(ps, conn, rs);
|
||||
}
|
||||
|
||||
return ids;
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user