org.jooq.SchemaMapping Maven / Gradle / Ivy
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/*
* Copyright (c) 2009-2016, Data Geekery GmbH (http://www.datageekery.com)
* All rights reserved.
*
* 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.
*
* Other licenses:
* -----------------------------------------------------------------------------
* Commercial licenses for this work are available. These replace the above
* ASL 2.0 and offer limited warranties, support, maintenance, and commercial
* database integrations.
*
* For more information, please visit: http://www.jooq.org/licenses
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package org.jooq;
import static org.jooq.tools.StringUtils.isBlank;
import java.io.Serializable;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import javax.xml.bind.JAXB;
import org.jooq.conf.MappedSchema;
import org.jooq.conf.MappedTable;
import org.jooq.conf.RenderMapping;
import org.jooq.conf.Settings;
import org.jooq.conf.SettingsTools;
import org.jooq.tools.JooqLogger;
import org.jooq.tools.StringUtils;
/**
* General mapping of generated artefacts onto run-time substitutes.
*
* There are several use cases, when the run-time schema configuration may be
* different from the compile-time (or code-generation-time) schema
* configuration. Say, you develop a schema called DEV. It contains
* a table DEV.T. When you install your database on a productive
* system, you might have two schemata:
*
* PROD: The productive schema. It contains the table
* PROD.TBACKUP: The productive backup schema. This schema might be
* shared with other applications, so you might have table name collisions.
* Therefore, you'd want to map your table DEV.T onto
* BACKUP.MY_T
*
*
* This can be achieved with the SchemaMapping, where you can map
* schemata and tables, for them to render different names at run-time, than at
* compile-time.
*
* @author Lukas Eder
* @see https://sourceforge.net/apps/trac/jooq/wiki/Manual/ADVANCED/SchemaMapping
* @since 1.5.2, 1.6.0
* @deprecated - 2.0.5 - Use runtime configuration {@link Settings} instead
*/
@Deprecated
public class SchemaMapping implements Serializable {
/**
* Generated UID
*/
private static final long serialVersionUID = 8269660159338710470L;
private static final JooqLogger log = JooqLogger.getLogger(SchemaMapping.class);
private static volatile boolean loggedDeprecation = false;
private final Configuration configuration;
private volatile transient Map schemata;
private volatile transient Map> tables;
/**
* Construct a mapping from a {@link Configuration} object
*/
public SchemaMapping(Configuration configuration) {
this.configuration = configuration;
}
private final RenderMapping mapping() {
return SettingsTools.getRenderMapping(configuration.settings());
}
private final boolean renderCatalog() {
return Boolean.TRUE.equals(configuration.settings().isRenderCatalog());
}
private final boolean renderSchema() {
return Boolean.TRUE.equals(configuration.settings().isRenderSchema());
}
private static void logDeprecation() {
if (!loggedDeprecation) {
// Log only once
loggedDeprecation = true;
log.warn("DEPRECATION", "org.jooq.SchemaMapping is deprecated as of jOOQ 2.0.5. Consider using jOOQ's runtime configuration org.jooq.conf.Settings instead");
}
}
/**
* Set a schema as the default schema. This results in the supplied schema
* being omitted in generated SQL.
*
* If the supplied mapping has already been added using
* {@link #add(Schema, Schema)}, then use() has no effect.
*
* @param schema the default schema
*/
public void use(Schema schema) {
use(schema.getName());
}
/**
* Set a schema as the default schema. This results in the supplied schema
* being omitted in generated SQL.
*
* If the supplied mapping has already been added using
* {@link #add(Schema, Schema)}, then use() has no effect.
*
* @param schemaName the default schema
*/
public void use(String schemaName) {
logDeprecation();
mapping().setDefaultSchema(schemaName);
}
/**
* Add schemata to this mapping
*
* @param inputSchema The schema known at codegen time to be mapped
* @param outputSchema The schema configured at run time to be mapped
*/
public void add(String inputSchema, String outputSchema) {
logDeprecation();
// Find existing mapped schema
MappedSchema schema = null;
for (MappedSchema s : mapping().getSchemata()) {
if (inputSchema.equals(s.getInput())) {
schema = s;
break;
}
}
if (schema == null) {
schema = new MappedSchema().withInput(inputSchema);
mapping().getSchemata().add(schema);
}
// Add new mapping
schema.setOutput(outputSchema);
}
/**
* Add schemata to this mapping
*
* @param inputSchema The schema known at codegen time to be mapped
* @param outputSchema The schema configured at run time to be mapped
*/
public void add(String inputSchema, Schema outputSchema) {
add(inputSchema, outputSchema.getName());
}
/**
* Add schemata to this mapping
*
* @param inputSchema The schema known at codegen time to be mapped
* @param outputSchema The schema configured at run time to be mapped
*/
public void add(Schema inputSchema, Schema outputSchema) {
add(inputSchema.getName(), outputSchema.getName());
}
/**
* Add schemata to this mapping
*
* @param inputSchema The schema known at codegen time to be mapped
* @param outputSchema The schema configured at run time to be mapped
*/
public void add(Schema inputSchema, String outputSchema) {
add(inputSchema.getName(), outputSchema);
}
/**
* Add tables to this mapping
*
* @param inputTable The table known at codegen time to be mapped
* @param outputTable The table configured at run time to be mapped
*/
public void add(Table inputTable, Table outputTable) {
add(inputTable, outputTable.getName());
}
/**
* Add tables to this mapping
*
* @param inputTable The table known at codegen time to be mapped
* @param outputTable The table configured at run time to be mapped
*/
public void add(final Table inputTable, final String outputTable) {
logDeprecation();
// Try to find a pre-existing schema mapping in the settings
MappedSchema schema = null;
MappedTable table = null;
for (MappedSchema s : mapping().getSchemata()) {
if (inputTable.getSchema().getName().equals(s.getInput())) {
// Find existing mapped table
tableLoop:
for (MappedTable t : s.getTables()) {
if (inputTable.getName().equals(t.getInput())) {
table = t;
break tableLoop;
}
}
schema = s;
break;
}
}
if (schema == null) {
schema = new MappedSchema().withInput(inputTable.getSchema().getName());
mapping().getSchemata().add(schema);
}
if (table == null) {
table = new MappedTable().withInput(inputTable.getName());
schema.getTables().add(table);
}
// Add new mapping
table.setOutput(outputTable);
}
public Catalog map(Catalog catalog) {
// [#1774] [#4795] The default Settings render schema flag takes
// precedence over the DefaultConfiguration's ignoreMapping flag!
if (!renderCatalog()) return null;
Catalog result = catalog;
if (result != null) {
String catalogName = result.getName();
// [#2089] DefaultCatalog has an empty schema name
if (StringUtils.isEmpty(catalogName))
return null;
// [#4793] TODO implement runtime catalog mapping
}
return result;
}
/**
* Apply mapping to a given schema
*
* @param schema The schema to be mapped
* @return The configured schema
*/
public Schema map(Schema schema) {
// [#1774] The default Settings render schema flag takes precedence over
// The DefaultConfiguration's ignoreMapping flag!
if (!renderSchema()) return null;
Schema result = schema;
if (result != null) {
String schemaName = result.getName();
// [#2089] DefaultSchema has an empty schema name
if (StringUtils.isEmpty(schemaName))
return null;
// [#4642] Don't initialise schema mapping if not necessary
if (!mapping().getSchemata().isEmpty()) {
// Lazy initialise schema mapping
if (!getSchemata().containsKey(schemaName)) {
// [#1857] thread-safe lazy initialisation for those users who
// want to use a Configuration and dependent objects in a "thread-safe" manner
synchronized (this) {
if (!getSchemata().containsKey(schemaName)) {
for (MappedSchema s : mapping().getSchemata()) {
// A configured mapping was found, add a renamed schema
if (matches(s, schemaName)) {
// Ignore self-mappings and void-mappings
if (!isBlank(s.getOutput()))
if (s.getInput() != null && !s.getOutput().equals(schemaName))
result = new RenamedSchema(result, s.getOutput());
else if (s.getInputExpression() != null)
result = new RenamedSchema(result, s.getInputExpression().matcher(schemaName).replaceAll(s.getOutput()));
break;
}
}
// Add mapped schema or self if no mapping was found
getSchemata().put(schemaName, result);
}
}
}
result = getSchemata().get(schemaName);
}
// The configured default schema is mapped to "null". This prevents
// it from being rendered to SQL
if (result.getName().equals(mapping().getDefaultSchema())) {
result = null;
}
}
return result;
}
/**
* Apply mapping to a given table
*
* @param table The generated table to be mapped
* @return The configured table
*/
@SuppressWarnings("unchecked")
public Table map(Table table) {
Table result = table;
// [#4652] Don't initialise table mapping if not necessary
if (result != null && !mapping().getSchemata().isEmpty()) {
Schema schema = result.getSchema();
// [#1189] Schema can be null in SQLite
// [#2089] DefaultSchema have empty schema names
// [#1186] TODO: replace this by calling table.getQualifiedName()
String schemaName = (schema == null) ? "" : schema.getName();
String tableName = result.getName();
String key = (schema == null || StringUtils.isEmpty(schemaName)) ? tableName : (schemaName + "." + tableName);
// Lazy initialise table mapping
if (!getTables().containsKey(key)) {
// [#1857] thread-safe lazy initialisation for those users who
// want to use Configuration and dependent objects in a "thread-safe" manner
synchronized (this) {
if (!getTables().containsKey(key)) {
schemaLoop:
for (MappedSchema s : mapping().getSchemata()) {
if (matches(s, schemaName)) {
for (MappedTable t : s.getTables()) {
// A configured mapping was found, add a renamed table
if (matches(t, tableName)) {
// Ignore self-mappings and void-mappings
if (!isBlank(t.getOutput()))
if (t.getInput() != null && !t.getOutput().equals(tableName))
result = new RenamedTable(result, t.getOutput());
else if (t.getInputExpression() != null)
result = new RenamedTable(result, t.getInputExpression().matcher(tableName).replaceAll(t.getOutput()));
break schemaLoop;
}
}
}
}
// Add mapped table or self if no mapping was found
getTables().put(key, result);
}
}
}
result = (Table) getTables().get(key);
}
return result;
}
private final boolean matches(MappedSchema s, String schemaName) {
return (s.getInput() != null && schemaName.equals(s.getInput()))
|| (s.getInputExpression() != null && s.getInputExpression().matcher(schemaName).matches());
}
private final boolean matches(MappedTable t, String tableName) {
return (t.getInput() != null && tableName.equals(t.getInput()))
|| (t.getInputExpression() != null && t.getInputExpression().matcher(tableName).matches());
}
/**
* Synonym for {@link #use(String)}. Added for better interoperability with
* Spring
*/
public void setDefaultSchema(String schema) {
use(schema);
}
/**
* Initialise SchemaMapping. Added for better interoperability with Spring
*/
public void setSchemaMapping(Map schemaMap) {
for (Entry entry : schemaMap.entrySet()) {
add(entry.getKey(), entry.getValue());
}
}
private final Map getSchemata() {
if (schemata == null) {
// [#1857] thread-safe lazy initialisation for those users who
// want to use Configuration and dependent objects in a "thread-safe" manner
synchronized (this) {
if (schemata == null) {
schemata = new HashMap();
}
}
}
return schemata;
}
private final Map> getTables() {
if (tables == null) {
// [#1857] thread-safe lazy initialisation for those users who
// want to use Configuration and dependent objects in a "thread-safe" manner
synchronized (this) {
if (tables == null) {
tables = new HashMap>();
}
}
}
return tables;
}
// ------------------------------------------------------------------------
// Object API
// ------------------------------------------------------------------------
@Override
public String toString() {
StringWriter writer = new StringWriter();
JAXB.marshal(mapping(), writer);
return writer.toString();
}
}