| /* |
| * |
| * 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.qpid.server.store.jdbc; |
| |
| |
| import java.sql.Blob; |
| import java.sql.Connection; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.CopyOnWriteArrayList; |
| |
| import org.apache.log4j.Logger; |
| import org.apache.qpid.server.plugin.JDBCConnectionProviderFactory; |
| import org.apache.qpid.server.store.AbstractJDBCMessageStore; |
| import org.apache.qpid.server.store.MessageStore; |
| import org.apache.qpid.server.store.StoreException; |
| import org.apache.qpid.server.store.StoreFuture; |
| import org.apache.qpid.server.store.Transaction; |
| import org.apache.qpid.server.util.MapValueConverter; |
| |
| /** |
| * An implementation of a {@link org.apache.qpid.server.store.MessageStore} that uses a JDBC database as the persistence |
| * mechanism. |
| * |
| */ |
| public class JDBCMessageStore extends AbstractJDBCMessageStore implements MessageStore |
| { |
| |
| private static final Logger _logger = Logger.getLogger(JDBCMessageStore.class); |
| |
| public static final String TYPE = "JDBC"; |
| public static final String CONNECTION_URL = "connectionURL"; |
| public static final String CONNECTION_POOL = "connectionPool"; |
| public static final String JDBC_BIG_INT_TYPE = "jdbcBigIntType"; |
| public static final String JDBC_BYTES_FOR_BLOB = "jdbcBytesForBlob"; |
| public static final String JDBC_VARBINARY_TYPE = "jdbcVarbinaryType"; |
| public static final String JDBC_BLOB_TYPE = "jdbcBlobType"; |
| |
| protected String _connectionURL; |
| private ConnectionProvider _connectionProvider; |
| |
| |
| private static class JDBCDetails |
| { |
| private final String _vendor; |
| private String _blobType; |
| private String _varBinaryType; |
| private String _bigintType; |
| private boolean _useBytesMethodsForBlob; |
| |
| private JDBCDetails(String vendor, |
| String blobType, |
| String varBinaryType, |
| String bigIntType, |
| boolean useBytesMethodsForBlob) |
| { |
| _vendor = vendor; |
| setBlobType(blobType); |
| setVarBinaryType(varBinaryType); |
| setBigintType(bigIntType); |
| setUseBytesMethodsForBlob(useBytesMethodsForBlob); |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| if (this == o) |
| { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) |
| { |
| return false; |
| } |
| |
| JDBCDetails that = (JDBCDetails) o; |
| |
| if (!getVendor().equals(that.getVendor())) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return getVendor().hashCode(); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return "JDBCDetails{" + |
| "vendor='" + getVendor() + '\'' + |
| ", blobType='" + getBlobType() + '\'' + |
| ", varBinaryType='" + getVarBinaryType() + '\'' + |
| ", bigIntType='" + getBigintType() + '\'' + |
| ", useBytesMethodsForBlob=" + isUseBytesMethodsForBlob() + |
| '}'; |
| } |
| |
| public String getVendor() |
| { |
| return _vendor; |
| } |
| |
| public String getBlobType() |
| { |
| return _blobType; |
| } |
| |
| public void setBlobType(String blobType) |
| { |
| _blobType = blobType; |
| } |
| |
| public String getVarBinaryType() |
| { |
| return _varBinaryType; |
| } |
| |
| public void setVarBinaryType(String varBinaryType) |
| { |
| _varBinaryType = varBinaryType; |
| } |
| |
| public boolean isUseBytesMethodsForBlob() |
| { |
| return _useBytesMethodsForBlob; |
| } |
| |
| public void setUseBytesMethodsForBlob(boolean useBytesMethodsForBlob) |
| { |
| _useBytesMethodsForBlob = useBytesMethodsForBlob; |
| } |
| |
| public String getBigintType() |
| { |
| return _bigintType; |
| } |
| |
| public void setBigintType(String bigintType) |
| { |
| _bigintType = bigintType; |
| } |
| } |
| |
| private static JDBCDetails DERBY_DETAILS = |
| new JDBCDetails("derby", |
| "blob", |
| "varchar(%d) for bit data", |
| "bigint", |
| false); |
| |
| private static JDBCDetails POSTGRESQL_DETAILS = |
| new JDBCDetails("postgresql", |
| "bytea", |
| "bytea", |
| "bigint", |
| true); |
| |
| private static JDBCDetails MYSQL_DETAILS = |
| new JDBCDetails("mysql", |
| "blob", |
| "varbinary(%d)", |
| "bigint", |
| false); |
| |
| |
| private static JDBCDetails SYBASE_DETAILS = |
| new JDBCDetails("sybase", |
| "image", |
| "varbinary(%d)", |
| "bigint", |
| false); |
| |
| |
| private static JDBCDetails ORACLE_DETAILS = |
| new JDBCDetails("oracle", |
| "blob", |
| "raw(%d)", |
| "number", |
| false); |
| |
| |
| private static Map<String, JDBCDetails> VENDOR_DETAILS = new HashMap<String,JDBCDetails>(); |
| |
| static |
| { |
| |
| addDetails(DERBY_DETAILS); |
| addDetails(POSTGRESQL_DETAILS); |
| addDetails(MYSQL_DETAILS); |
| addDetails(SYBASE_DETAILS); |
| addDetails(ORACLE_DETAILS); |
| } |
| |
| private static void addDetails(JDBCDetails details) |
| { |
| VENDOR_DETAILS.put(details.getVendor(), details); |
| } |
| |
| private String _blobType; |
| private String _varBinaryType; |
| private String _bigIntType; |
| private boolean _useBytesMethodsForBlob; |
| |
| private List<RecordedJDBCTransaction> _transactions = new CopyOnWriteArrayList<RecordedJDBCTransaction>(); |
| |
| |
| public JDBCMessageStore() |
| { |
| } |
| |
| protected Logger getLogger() |
| { |
| return _logger; |
| } |
| |
| protected String getSqlBlobType() |
| { |
| return _blobType; |
| } |
| |
| protected String getSqlVarBinaryType(int size) |
| { |
| return String.format(_varBinaryType, size); |
| } |
| |
| public String getSqlBigIntType() |
| { |
| return _bigIntType; |
| } |
| |
| @Override |
| protected void doClose() |
| { |
| try |
| { |
| while(!_transactions.isEmpty()) |
| { |
| RecordedJDBCTransaction txn = _transactions.get(0); |
| txn.abortTran(); |
| } |
| } |
| finally |
| { |
| try |
| { |
| _connectionProvider.close(); |
| } |
| catch (SQLException e) |
| { |
| throw new StoreException("Unable to close connection provider ", e); |
| } |
| } |
| } |
| |
| |
| protected Connection getConnection() throws SQLException |
| { |
| return _connectionProvider.getConnection(); |
| } |
| |
| |
| protected void implementationSpecificConfiguration(String name, Map<String, Object> storeSettings) |
| throws ClassNotFoundException, SQLException |
| { |
| _connectionURL = String.valueOf(storeSettings.get(CONNECTION_URL)); |
| Object poolAttribute = storeSettings.get(CONNECTION_POOL); |
| |
| JDBCDetails details = null; |
| |
| String[] components = _connectionURL.split(":",3); |
| if(components.length >= 2) |
| { |
| String vendor = components[1]; |
| details = VENDOR_DETAILS.get(vendor); |
| } |
| |
| if(details == null) |
| { |
| getLogger().info("Do not recognize vendor from connection URL: " + _connectionURL); |
| |
| // TODO - is there a better default than derby |
| details = DERBY_DETAILS; |
| } |
| |
| String connectionPoolType = poolAttribute == null ? DefaultConnectionProviderFactory.TYPE : String.valueOf(poolAttribute); |
| |
| JDBCConnectionProviderFactory connectionProviderFactory = |
| JDBCConnectionProviderFactory.FACTORIES.get(connectionPoolType); |
| if(connectionProviderFactory == null) |
| { |
| _logger.warn("Unknown connection pool type: " + connectionPoolType + ". no connection pooling will be used"); |
| connectionProviderFactory = new DefaultConnectionProviderFactory(); |
| } |
| |
| _connectionProvider = connectionProviderFactory.getConnectionProvider(_connectionURL, storeSettings); |
| _blobType = MapValueConverter.getStringAttribute(JDBC_BLOB_TYPE, storeSettings, details.getBlobType()); |
| _varBinaryType = MapValueConverter.getStringAttribute(JDBC_VARBINARY_TYPE, storeSettings, details.getVarBinaryType()); |
| _useBytesMethodsForBlob = MapValueConverter.getBooleanAttribute(JDBC_BYTES_FOR_BLOB, storeSettings, details.isUseBytesMethodsForBlob()); |
| _bigIntType = MapValueConverter.getStringAttribute(JDBC_BIG_INT_TYPE, storeSettings, details.getBigintType()); |
| } |
| |
| @Override |
| protected void storedSizeChange(int contentSize) |
| { |
| } |
| |
| @Override |
| public String getStoreLocation() |
| { |
| return _connectionURL; |
| } |
| |
| @Override |
| protected byte[] getBlobAsBytes(ResultSet rs, int col) throws SQLException |
| { |
| if(_useBytesMethodsForBlob) |
| { |
| return rs.getBytes(col); |
| } |
| else |
| { |
| Blob dataAsBlob = rs.getBlob(col); |
| return dataAsBlob.getBytes(1,(int) dataAsBlob.length()); |
| |
| } |
| } |
| |
| @Override |
| protected String getBlobAsString(ResultSet rs, int col) throws SQLException |
| { |
| byte[] bytes; |
| if(_useBytesMethodsForBlob) |
| { |
| bytes = rs.getBytes(col); |
| return new String(bytes,UTF8_CHARSET); |
| } |
| else |
| { |
| Blob blob = rs.getBlob(col); |
| if(blob == null) |
| { |
| return null; |
| } |
| bytes = blob.getBytes(1, (int)blob.length()); |
| } |
| return new String(bytes, UTF8_CHARSET); |
| |
| } |
| |
| @Override |
| public Transaction newTransaction() |
| { |
| return new RecordedJDBCTransaction(); |
| } |
| |
| private class RecordedJDBCTransaction extends JDBCTransaction |
| { |
| private RecordedJDBCTransaction() |
| { |
| super(); |
| JDBCMessageStore.this._transactions.add(this); |
| } |
| |
| @Override |
| public void commitTran() |
| { |
| try |
| { |
| super.commitTran(); |
| } |
| finally |
| { |
| JDBCMessageStore.this._transactions.remove(this); |
| } |
| } |
| |
| @Override |
| public StoreFuture commitTranAsync() |
| { |
| try |
| { |
| return super.commitTranAsync(); |
| } |
| finally |
| { |
| JDBCMessageStore.this._transactions.remove(this); |
| } |
| } |
| |
| @Override |
| public void abortTran() |
| { |
| try |
| { |
| super.abortTran(); |
| } |
| finally |
| { |
| JDBCMessageStore.this._transactions.remove(this); |
| } |
| } |
| } |
| |
| } |