package org.apache.ibatis.session;
import org.apache.ibatis.binding.MapperRegistry;
import org.apache.ibatis.cache.Cache;
import org.apache.ibatis.cache.decorators.FifoCache;
import org.apache.ibatis.cache.decorators.LruCache;
import org.apache.ibatis.cache.decorators.SoftCache;
import org.apache.ibatis.cache.decorators.WeakCache;
import org.apache.ibatis.cache.impl.PerpetualCache;
import org.apache.ibatis.datasource.jndi.JndiDataSourceFactory;
import org.apache.ibatis.datasource.pooled.PooledDataSourceFactory;
import org.apache.ibatis.datasource.unpooled.UnpooledDataSourceFactory;
import org.apache.ibatis.executor.*;
import org.apache.ibatis.executor.keygen.KeyGenerator;
import org.apache.ibatis.executor.parameter.DefaultParameterHandler;
import org.apache.ibatis.executor.parameter.ParameterHandler;
import org.apache.ibatis.executor.resultset.NestedResultSetHandler;
import org.apache.ibatis.executor.resultset.ResultSetHandler;
import org.apache.ibatis.executor.resultset.FastResultSetHandler;
import org.apache.ibatis.executor.statement.RoutingStatementHandler;
import org.apache.ibatis.executor.statement.StatementHandler;
import org.apache.ibatis.mapping.*;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.plugin.InterceptorChain;
import org.apache.ibatis.reflection.factory.DefaultObjectFactory;
import org.apache.ibatis.reflection.factory.ObjectFactory;
import org.apache.ibatis.reflection.wrapper.ObjectWrapperFactory;
import org.apache.ibatis.reflection.wrapper.DefaultObjectWrapperFactory;
import org.apache.ibatis.reflection.MetaObject;
import org.apache.ibatis.transaction.Transaction;
import org.apache.ibatis.transaction.jdbc.JdbcTransactionFactory;
import org.apache.ibatis.transaction.managed.ManagedTransactionFactory;
import org.apache.ibatis.type.TypeAliasRegistry;
import org.apache.ibatis.type.TypeHandlerRegistry;
import java.util.*;
public class Configuration {
private Environment environment;
private boolean lazyLoadingEnabled = false;
private boolean multipleResultSetsEnabled = true;
private boolean useGeneratedKeys = false;
private boolean useColumnLabel = true;
private boolean cacheEnabled = true;
private Integer defaultStatementTimeout;
private ExecutorType defaultExecutorType = ExecutorType.SIMPLE;
private Properties variables = new Properties();
private ObjectFactory objectFactory = new DefaultObjectFactory();
private ObjectWrapperFactory objectWrapperFactory = new DefaultObjectWrapperFactory();
private MapperRegistry mapperRegistry = new MapperRegistry(this);
private final InterceptorChain interceptorChain = new InterceptorChain();
private final TypeHandlerRegistry typeHandlerRegistry = new TypeHandlerRegistry();
private final TypeAliasRegistry typeAliasRegistry = new TypeAliasRegistry();
private final Map<String, MappedStatement> mappedStatements = new StrictMap<String, MappedStatement>("Mapped Statements collection");
private final Map<String, Cache> caches = new StrictMap<String, Cache>("Caches collection");
private final Map<String, ResultMap> resultMaps = new StrictMap<String, ResultMap>("Result Maps collection");
private final Map<String, ParameterMap> parameterMaps = new StrictMap<String, ParameterMap>("Parameter Maps collection");
private final Map<String, KeyGenerator> keyGenerators = new StrictMap<String, KeyGenerator>("Key Generators collection");
private final Set<String> loadedResources = new HashSet<String>();
public Configuration(Environment environment) {
this();
this.environment = environment;
}
public Configuration() {
typeAliasRegistry.registerAlias("JDBC", JdbcTransactionFactory.class.getName());
typeAliasRegistry.registerAlias("MANAGED", ManagedTransactionFactory.class.getName());
typeAliasRegistry.registerAlias("JNDI", JndiDataSourceFactory.class.getName());
typeAliasRegistry.registerAlias("POOLED", PooledDataSourceFactory.class.getName());
typeAliasRegistry.registerAlias("UNPOOLED", UnpooledDataSourceFactory.class.getName());
typeAliasRegistry.registerAlias("PERPETUAL", PerpetualCache.class.getName());
typeAliasRegistry.registerAlias("FIFO", FifoCache.class.getName());
typeAliasRegistry.registerAlias("LRU", LruCache.class.getName());
typeAliasRegistry.registerAlias("SOFT", SoftCache.class.getName());
typeAliasRegistry.registerAlias("WEAK", WeakCache.class.getName());
}
public void addLoadedResource(String resource) {
loadedResources.add(resource);
}
public boolean isResourceLoaded(String resource) {
return loadedResources.contains(resource);
}
public Environment getEnvironment() {
return environment;
}
public void setEnvironment(Environment environment) {
this.environment = environment;
}
public boolean isLazyLoadingEnabled() {
return lazyLoadingEnabled;
}
public void setLazyLoadingEnabled(boolean lazyLoadingEnabled) {
this.lazyLoadingEnabled = lazyLoadingEnabled;
}
public boolean isMultipleResultSetsEnabled() {
return multipleResultSetsEnabled;
}
public void setMultipleResultSetsEnabled(boolean multipleResultSetsEnabled) {
this.multipleResultSetsEnabled = multipleResultSetsEnabled;
}
public boolean isUseGeneratedKeys() {
return useGeneratedKeys;
}
public void setUseGeneratedKeys(boolean useGeneratedKeys) {
this.useGeneratedKeys = useGeneratedKeys;
}
public ExecutorType getDefaultExecutorType() {
return defaultExecutorType;
}
public void setDefaultExecutorType(ExecutorType defaultExecutorType) {
this.defaultExecutorType = defaultExecutorType;
}
public boolean isCacheEnabled() {
return cacheEnabled;
}
public void setCacheEnabled(boolean cacheEnabled) {
this.cacheEnabled = cacheEnabled;
}
public Integer getDefaultStatementTimeout() {
return defaultStatementTimeout;
}
public void setDefaultStatementTimeout(Integer defaultStatementTimeout) {
this.defaultStatementTimeout = defaultStatementTimeout;
}
public boolean isUseColumnLabel() {
return useColumnLabel;
}
public void setUseColumnLabel(boolean useColumnLabel) {
this.useColumnLabel = useColumnLabel;
}
public Properties getVariables() {
return variables;
}
public void setVariables(Properties variables) {
this.variables = variables;
}
public TypeHandlerRegistry getTypeHandlerRegistry() {
return typeHandlerRegistry;
}
public TypeAliasRegistry getTypeAliasRegistry() {
return typeAliasRegistry;
}
public ObjectFactory getObjectFactory() {
return objectFactory;
}
public void setObjectFactory(ObjectFactory objectFactory) {
this.objectFactory = objectFactory;
}
public ObjectWrapperFactory getObjectWrapperFactory() {
return objectWrapperFactory;
}
public void setObjectWrapperFactory(ObjectWrapperFactory objectWrapperFactory) {
this.objectWrapperFactory = objectWrapperFactory;
}
public MetaObject newMetaObject(Object object) {
return MetaObject.forObject(object,objectFactory,objectWrapperFactory);
}
public ParameterHandler newParameterHandler(MappedStatement mappedStatement, Object parameterObject, BoundSql boundSql) {
ParameterHandler parameterHandler = new DefaultParameterHandler(mappedStatement, parameterObject, boundSql);
parameterHandler = (ParameterHandler) interceptorChain.pluginAll(parameterHandler);
return parameterHandler;
}
public ResultSetHandler newResultSetHandler(Executor executor, MappedStatement mappedStatement, RowBounds rowBounds, ParameterHandler parameterHandler, ResultHandler resultHandler, BoundSql boundSql) {
ResultSetHandler resultSetHandler = mappedStatement.hasNestedResultMaps() ?
new NestedResultSetHandler(executor, mappedStatement, parameterHandler, resultHandler, boundSql, rowBounds)
: new FastResultSetHandler(executor, mappedStatement, parameterHandler, resultHandler, boundSql, rowBounds);
resultSetHandler = (ResultSetHandler) interceptorChain.pluginAll(resultSetHandler);
return resultSetHandler;
}
public StatementHandler newStatementHandler(Executor executor, MappedStatement mappedStatement, Object parameterObject, RowBounds rowBounds, ResultHandler resultHandler) {
StatementHandler statementHandler = new RoutingStatementHandler(executor, mappedStatement, parameterObject, rowBounds, resultHandler);
statementHandler = (StatementHandler) interceptorChain.pluginAll(statementHandler);
return statementHandler;
}
public Executor newExecutor(Transaction transaction) {
return newExecutor(transaction, defaultExecutorType);
}
public Executor newExecutor(Transaction transaction, ExecutorType executorType) {
executorType = executorType == null ? defaultExecutorType : executorType;
executorType = executorType == null ? ExecutorType.SIMPLE : executorType;
Executor executor;
if (ExecutorType.BATCH == executorType) {
executor = new BatchExecutor(this,transaction);
} else if (ExecutorType.REUSE == executorType) {
executor = new ReuseExecutor(this,transaction);
} else {
executor = new SimpleExecutor(this,transaction);
}
if (cacheEnabled) {
executor = new CachingExecutor(executor);
}
executor = (Executor) interceptorChain.pluginAll(executor);
return executor;
}
public void addKeyGenerator(String id, KeyGenerator keyGenerator) {
keyGenerators.put(id, keyGenerator);
}
public Collection<String> getKeyGeneratorNames() {
return keyGenerators.keySet();
}
public Collection<KeyGenerator> getKeyGenerators() {
return keyGenerators.values();
}
public KeyGenerator getKeyGenerator(String id) {
return keyGenerators.get(id);
}
public boolean hasKeyGenerator(String id) {
return keyGenerators.containsKey(id);
}
public void addCache(Cache cache) {
caches.put(cache.getId(), cache);
}
public Collection<String> getCacheNames() {
return caches.keySet();
}
public Collection<Cache> getCaches() {
return caches.values();
}
public Cache getCache(String id) {
return caches.get(id);
}
public boolean hasCache(String id) {
return caches.containsKey(id);
}
public void addResultMap(ResultMap rm) {
resultMaps.put(rm.getId(), rm);
}
public Collection<String> getResultMapNames() {
return resultMaps.keySet();
}
public Collection<ResultMap> getResultMaps() {
return resultMaps.values();
}
public ResultMap getResultMap(String id) {
return resultMaps.get(id);
}
public boolean hasResultMap(String id) {
return resultMaps.containsKey(id);
}
public void addParameterMap(ParameterMap pm) {
parameterMaps.put(pm.getId(), pm);
}
public Collection<String> getParameterMapNames() {
return parameterMaps.keySet();
}
public Collection<ParameterMap> getParameterMaps() {
return parameterMaps.values();
}
public ParameterMap getParameterMap(String id) {
return parameterMaps.get(id);
}
public boolean hasParameterMap(String id) {
return parameterMaps.containsKey(id);
}
public void addMappedStatement(MappedStatement ms) {
mappedStatements.put(ms.getId(), ms);
}
public Collection<String> getMappedStatementNames() {
return mappedStatements.keySet();
}
public Collection<MappedStatement> getMappedStatements() {
return mappedStatements.values();
}
public MappedStatement getMappedStatement(String id) {
return mappedStatements.get(id);
}
public void addInterceptor(Interceptor interceptor) {
interceptorChain.addInterceptor(interceptor);
}
public <T> void addMapper(Class<T> type) {
mapperRegistry.addMapper(type);
}
public <T> T getMapper(Class<T> type, SqlSession sqlSession) {
return mapperRegistry.getMapper(type, sqlSession);
}
public boolean hasMapper(Class type) {
return mapperRegistry.hasMapper(type);
}
public boolean hasStatement(String statementName) {
return mappedStatements.containsKey(statementName);
}
private static class StrictMap<J, K> extends HashMap<J, K> {
private String name;
public StrictMap(String name, int initialCapacity, float loadFactor) {
super(initialCapacity, loadFactor);
this.name = name;
}
public StrictMap(String name, int initialCapacity) {
super(initialCapacity);
this.name = name;
}
public StrictMap(String name) {
super();
this.name = name;
}
public StrictMap(String name, Map<? extends J, ? extends K> m) {
super(m);
this.name = name;
}
public K put(J key, K value) {
if (containsKey(key)) throw new IllegalArgumentException(name + " already contains value for " + key);
return super.put(key, value);
}
public K get(Object key) {
K value = super.get(key);
if (value == null) throw new IllegalArgumentException(name + " does not contain value for " + key);
return value;
}
}
}
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