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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.openjpa.jdbc.kernel;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Types;
import java.util.HashMap;
import java.util.Map;
import org.apache.openjpa.jdbc.conf.JDBCConfiguration;
import org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl;
import org.apache.openjpa.jdbc.meta.ClassMapping;
import org.apache.openjpa.jdbc.meta.MappingRepository;
import org.apache.openjpa.jdbc.schema.Column;
import org.apache.openjpa.jdbc.schema.Table;
import org.apache.openjpa.jdbc.sql.DBDictionary;
import org.apache.openjpa.lib.conf.Configurations;
import org.apache.openjpa.lib.meta.ClassArgParser;
import org.apache.openjpa.lib.util.Localizer;
import org.apache.openjpa.lib.util.Options;
import org.apache.openjpa.meta.JavaTypes;
/**
* Specialization of the {@link TableJDBCSeq} that maintains a
* separate sequence count per-class. Table name defaults to
* OPENJPA_SEQUENCES_TABLE.
*
* @author Abe White
*/
public class ClassTableJDBCSeq
extends TableJDBCSeq {
private static final Localizer _loc = Localizer.forPackage
(ClassTableJDBCSeq.class);
private final Map _stats = new HashMap();
private boolean _ignore = false;
private boolean _aliases = false;
public ClassTableJDBCSeq() {
setTable("OPENJPA_SEQUENCES_TABLE");
}
/**
* Whether unmapped classes should be ignored as possible primary
* key values in the table. Defaults to false.
*/
public boolean getIgnoreUnmapped() {
return _ignore;
}
/**
* Whether unmapped classes should be ignored as possible primary
* key values in the table. Defaults to false.
*/
public void setIgnoreUnmapped(boolean ignore) {
_ignore = ignore;
}
/**
* @deprecated Use {@link #setIgnoreUnmapped}. Retained for
* backwards-compatibility for auto-configuration.
*/
public void setIgnoreVirtual(boolean ignore) {
setIgnoreUnmapped(ignore);
}
/**
* Whether to use type alises for primary key values in place of class
* names. Defaults to false.
*/
public boolean getUseAliases() {
return _aliases;
}
/**
* Whether to use type alises for primary key values in place of class
* names. Defaults to false.
*/
public void setUseAliases(boolean aliases) {
_aliases = aliases;
}
protected synchronized Status getStatus(ClassMapping mapping) {
if (mapping == null)
return null;
String key = getKey(mapping, false);
Status stat = (Status) _stats.get(key);
if (stat == null) {
stat = new Status();
_stats.put(key, stat);
}
return stat;
}
protected Column addPrimaryKeyColumn(Table table) {
DBDictionary dict = getConfiguration().getDBDictionaryInstance();
Column pkColumn = table.addColumn(dict.getValidColumnName(
getPrimaryKeyColumnIdentifier(), table));
pkColumn.setType(dict.getPreferredType(Types.VARCHAR));
pkColumn.setJavaType(JavaTypes.STRING);
pkColumn.setSize(dict.characterColumnSize);
return pkColumn;
}
protected Object getPrimaryKey(ClassMapping mapping) {
if (mapping == null)
return null;
return getKey(mapping, true);
}
private String getKey(ClassMapping mapping, boolean db) {
if (_ignore) {
while (mapping.getMappedPCSuperclassMapping() != null)
mapping = mapping.getMappedPCSuperclassMapping();
} else {
while (mapping.getPCSuperclass() != null)
mapping = mapping.getPCSuperclassMapping();
}
if (_aliases)
return mapping.getTypeAlias();
return mapping.getDescribedType().getName();
}
/////////
// Main
/////////
/**
* Usage: java org.apache.openjpa.jdbc.kernel.ClassTableJDBCSeq [option]*
* -action/-a <add | drop | get | set>
* [class name | .java file | .class file | .jdo file] [value]
* Where the following options are recognized.
*
*
-properties/-p <properties file or resource>: The
* path or resource name of a OpenJPA properties file containing
* information such as connection data as
* outlined in {@link JDBCConfiguration}. Optional.
*
-<property name> <property value>: All bean
* properties of the OpenJPA {@link JDBCConfiguration} can be set by
* using their names and supplying a value.
*
* The various actions are as follows.
*
*
add: Create the sequence table.
*
drop: Drop the sequence table.
*
get: Print the current sequence value for the given
* class.
*
set: Set the sequence value for the given class.
*
*/
public static void main(String[] args) throws Exception {
Options opts = new Options();
final String[] arguments = opts.setFromCmdLine(args);
boolean ret = Configurations.runAgainstAllAnchors(opts,
new Configurations.Runnable() {
public boolean run(Options opts) throws Exception {
JDBCConfiguration conf = new JDBCConfigurationImpl();
try {
return ClassTableJDBCSeq.run(conf, arguments, opts);
} finally {
conf.close();
}
}
});
if (!ret) {
// START - ALLOW PRINT STATEMENTS
System.out.println(_loc.get("clstable-seq-usage"));
// STOP - ALLOW PRINT STATEMENTS
}
}
/**
* Run the tool. Returns false if invalid options were given.
*/
public static boolean run(JDBCConfiguration conf, String[] args,
Options opts) throws Exception {
String action = opts.removeProperty("action", "a", null);
Configurations.populateConfiguration(conf, opts);
return run(conf, args, action, null, null);
}
/**
* Run the tool. Return false if an invalid option was given.
*/
public static boolean run(JDBCConfiguration conf, String[] args,
String action, MappingRepository repos, ClassLoader loader)
throws Exception {
ClassTableJDBCSeq seq = new ClassTableJDBCSeq();
String props = Configurations.getProperties(conf.getSequence());
Configurations.configureInstance(seq, conf, props);
if (ACTION_DROP.equals(action)) {
if (args.length != 0)
return false;
seq.dropTable();
} else if (ACTION_ADD.equals(action)) {
if (args.length != 0)
return false;
seq.refreshTable();
} else if (ACTION_GET.equals(action) || ACTION_SET.equals(action)) {
if (args.length == 0)
return false;
if (loader == null)
loader = conf.getClassResolverInstance().getClassLoader(
ClassTableJDBCSeq.class, null);
ClassArgParser cap = conf.getMetaDataRepositoryInstance()
.getMetaDataFactory().newClassArgParser();
cap.setClassLoader(loader);
Class cls = cap.parseTypes(args[0])[0];
if (repos == null)
repos = conf.getMappingRepositoryInstance();
ClassMapping mapping = repos.getMapping(cls, null, true);
Connection conn = conf.getDataSource2(null).getConnection();
try {
long cur = seq.getSequence(mapping, conn);
if (ACTION_GET.equals(action)) {
// START - ALLOW PRINT STATEMENTS
System.out.println(mapping + ": " + cur);
// STOP - ALLOW PRINT STATEMENTS
}else {
long set;
if (args.length > 1)
set = Long.parseLong(args[1]);
else
set = cur + seq.getAllocate();
if (set < cur)
set = cur;
else {
Status stat = seq.getStatus(mapping);
seq.setSequence(null, stat, (int) (set - cur), true,
conn);
set = stat.seq;
}
// START - ALLOW PRINT STATEMENTS
System.err.println(mapping + ": " + set);
// STOP - ALLOW PRINT STATEMENTS
}
} catch (NumberFormatException nfe) {
return false;
} finally {
try {
conn.close();
} catch (SQLException se) {
}
}
} else
return false;
return true;
}
}
