Beispiel #1
0
 protected void generateExtraImports(IndentedWriter iw) throws IOException {
   iw.println("import java.sql.*;");
   iw.println("import javax.sql.*;");
   iw.println("import com.mchange.v2.log.*;");
   iw.println("import java.lang.reflect.Method;");
   iw.println("import com.mchange.v2.sql.SqlUtils;");
 }
Beispiel #2
0
    protected void generatePreDelegateCode(
        Class intfcl, String genclass, Method method, IndentedWriter iw) throws IOException {
      // concurrent-access-debug only
      if (CONCURRENT_ACCESS_DEBUG) {
        iw.println("Object record;");
        iw.println("synchronized (concurrentAccessRecorder)");
        iw.println("{");
        iw.upIndent();

        iw.println("record = concurrentAccessRecorder.record();");
        iw.println("int num_concurrent_clients = concurrentAccessRecorder.size();");
        iw.println("if (num_concurrent_clients != 1)");
        iw.upIndent();
        iw.println(
            "logger.log(MLevel.WARNING, "
                + "concurrentAccessRecorder.getDump(\042Apparent concurrent access! (\042 + num_concurrent_clients + \042 clients.\042) );");
        iw.downIndent();
        iw.downIndent();
        iw.println("}");
        iw.println();
      }
      // end concurrent-access-debug only

      super.generatePreDelegateCode(intfcl, genclass, method, iw);
    }
Beispiel #3
0
    protected void generatePreDelegateCode(
        Class intfcl, String genclass, Method method, IndentedWriter iw) throws IOException {
      if ("setClientInfo".equals(method.getName())) {
        iw.println("try");
        iw.println("{");
        iw.upIndent();

        super.generatePreDelegateCode(intfcl, genclass, method, iw);

      } else super.generatePreDelegateCode(intfcl, genclass, method, iw);
    }
Beispiel #4
0
    protected void generatePostDelegateCode(
        Class intfcl, String genclass, Method method, IndentedWriter iw) throws IOException {
      if ("setClientInfo".equals(method.getName())) {
        super.generatePostDelegateCode(intfcl, genclass, method, iw);

        iw.downIndent();
        iw.println("}");
        iw.println("catch (Exception e)");
        iw.println("{ throw SqlUtils.toSQLClientInfoException( e ); }");
      } else super.generatePostDelegateCode(intfcl, genclass, method, iw);
    }
Beispiel #5
0
 private static void generateWrapperDelegateCode(
     Class intfcl, String genclass, Method method, IndentedWriter iw) throws IOException {
   String mname = method.getName();
   if ("isWrapperFor".equals(mname)) {
     iw.println("return ( isWrapperForInner( a ) || isWrapperForThis( a ) );");
   } else if ("unwrap".equals(mname)) {
     iw.println("if (this.isWrapperForInner( a )) return inner.unwrap( a );");
     iw.println("if (this.isWrapperForThis( a )) return this;");
     iw.println(
         "else throw new SQLException( this + \042 is not a wrapper for or implementation of \042 + a.getName());");
   }
 }
Beispiel #6
0
  protected void writeDetachBody(IndentedWriter iw) throws IOException {
    // premature-detach-debug only
    if (PREMATURE_DETACH_DEBUG) {
      iw.println("prematureDetachRecorder.record();");
      iw.println("if (this.isDetached())");
      iw.upIndent();
      iw.println("logger.warning( prematureDetachRecorder.getDump(\042Double Detach.\042) );");
      iw.downIndent();
    }
    // end premature-detach-debug only

    iw.println("parentPooledConnection.removeConnectionEventListener( cel );");
    iw.println("parentPooledConnection = null;");
  }
Beispiel #7
0
    protected void generatePostDelegateCode(
        Class intfcl, String genclass, Method method, IndentedWriter iw) throws IOException {
      super.generatePostDelegateCode(intfcl, genclass, method, iw);

      // concurrent-access-debug only
      if (CONCURRENT_ACCESS_DEBUG) {
        iw.println("finally");
        iw.println("{");
        iw.upIndent();
        iw.println("concurrentAccessRecorder.remove( record );");
        iw.downIndent();
        iw.println("}");
      }
      // end concurrent-access-debug only
    }
Beispiel #8
0
    protected void generateDelegateCode(
        Class intfcl, String genclass, Method method, IndentedWriter iw) throws IOException {
      String mname = method.getName();
      if (jdbc4WrapperMethod(mname)) {
        generateWrapperDelegateCode(intfcl, genclass, method, iw);
        return;
      }

      Class retType = method.getReturnType();

      if (ResultSet.class.isAssignableFrom(retType)) {
        iw.println("ResultSet innerResultSet = inner." + CodegenUtils.methodCall(method) + ";");
        iw.println("if (innerResultSet == null) return null;");
        iw.println(
            "return new NewProxyResultSet( innerResultSet, parentPooledConnection, inner, this );");
      } else if (mname.equals("getConnection")) {
        iw.println("return this.proxyCon;");
      } else super.generateDelegateCode(intfcl, genclass, method, iw);
    }
Beispiel #9
0
 protected void generateExtraDeclarations(Class intfcl, String genclass, IndentedWriter iw)
     throws IOException {
   super.generateExtraDeclarations(intfcl, genclass, iw);
   iw.println();
   iw.println("NewProxyConnection proxyCon;");
   iw.println();
   iw.print(CodegenUtils.fqcnLastElement(genclass));
   iw.println(
       "( "
           + CodegenUtils.simpleClassName(intfcl)
           + " inner, NewPooledConnection parentPooledConnection, NewProxyConnection proxyCon )");
   iw.println("{");
   iw.upIndent();
   iw.println("this( inner, parentPooledConnection );");
   iw.println("this.proxyCon = proxyCon;");
   iw.downIndent();
   iw.println("}");
 }
Beispiel #10
0
 // Support JDBC4 Wrapper interface
 private static void generateIsWrapperHelperMethods(Class intfcl, IndentedWriter iw)
     throws IOException {
   iw.println("// helper methods for unwrap( ... ), isWrapperFor( ... )");
   iw.println("private boolean isWrapperForInner( Class intfcl )");
   iw.println(
       "{ return ( "
           + intfcl.getName()
           + ".class == intfcl || intfcl.isAssignableFrom( inner.getClass() ) ); }");
   iw.println();
   iw.println("private boolean isWrapperForThis( Class intfcl )");
   iw.println("{ return intfcl.isAssignableFrom( this.getClass() ); }");
 }
Beispiel #11
0
    protected void generateExtraDeclarations(Class intfcl, String genclass, IndentedWriter iw)
        throws IOException {
      super.generateExtraDeclarations(intfcl, genclass, iw);
      iw.println();

      // concurrent-access-debug only!
      if (CONCURRENT_ACCESS_DEBUG) {
        iw.println("com.mchange.v2.debug.ThreadNameStackTraceRecorder concurrentAccessRecorder");
        iw.upIndent();
        iw.println(
            "= new com.mchange.v2.debug.ThreadNameStackTraceRecorder(\042Concurrent Access Recorder\042);");
        iw.downIndent();
      }
      // end concurrent-access-debug only!

      iw.println("boolean is_cached;");
      iw.println("NewProxyConnection creatorProxy;");
      iw.println();
      iw.println("// Although formally unnecessary, we sync access to myProxyResultSets on");
      iw.println("// that set's own lock, in case clients (illegally but not uncommonly) close()");
      iw.println("// the Statement from a Thread other than the one they use in general");
      iw.println("// with the Statement");
      iw.println("HashSet myProxyResultSets = new HashSet();");
      iw.println();
      iw.println("public void detachProxyResultSet( ResultSet prs )");
      iw.println("{");
      iw.upIndent();
      // iw.println("System.err.println(\042detachProxyResultSet\042);");
      iw.println("synchronized (myProxyResultSets) { myProxyResultSets.remove( prs ); }");
      iw.downIndent();
      iw.println("}");
      iw.println();
      iw.print(CodegenUtils.fqcnLastElement(genclass));
      iw.println(
          "( "
              + CodegenUtils.simpleClassName(intfcl)
              + " inner, NewPooledConnection parentPooledConnection, boolean cached, NewProxyConnection cProxy )");
      iw.println("{");
      iw.upIndent();
      iw.println("this( inner, parentPooledConnection );");
      iw.println("this.is_cached = cached;");
      iw.println("this.creatorProxy = cProxy;");
      iw.downIndent();
      iw.println("}");
      iw.println();
      iw.println(
          "public Object rawStatementOperation(Method m, Object target, Object[] args) "
              + "throws IllegalAccessException, InvocationTargetException, SQLException");
      iw.println("{");
      iw.upIndent();
      iw.println("maybeDirtyTransaction();");
      iw.println();
      iw.println("if (target == C3P0ProxyStatement.RAW_STATEMENT) target = inner;");
      iw.println("for (int i = 0, len = args.length; i < len; ++i)");
      iw.upIndent();
      iw.println("if (args[i] == C3P0ProxyStatement.RAW_STATEMENT) args[i] = inner;");
      iw.downIndent();
      iw.println("Object out = m.invoke(target, args);");
      iw.println("if (out instanceof ResultSet)");
      iw.println("{");
      iw.upIndent();
      iw.println("ResultSet innerResultSet = (ResultSet) out;");
      iw.println(
          "parentPooledConnection.markActiveResultSetForStatement( inner, innerResultSet );");
      iw.println(
          "out = new NewProxyResultSet( innerResultSet, parentPooledConnection, inner, this );");
      iw.downIndent();
      iw.println("}");
      iw.println();
      iw.println("return out;");
      iw.downIndent();
      iw.println("}");
      iw.println();
      iw.println("void maybeDirtyTransaction()");
      iw.println("{ if (creatorProxy != null) creatorProxy.maybeDirtyTransaction(); }");
    }
Beispiel #12
0
 protected void generateExtraImports(IndentedWriter iw) throws IOException {
   super.generateExtraImports(iw);
   iw.println("import java.lang.reflect.InvocationTargetException;");
   iw.println("import com.mchange.v2.util.ResourceClosedException;");
 }
Beispiel #13
0
    void generateFindMethodAndArgs(Method method, IndentedWriter iw) throws IOException {
      iw.println("Class[] argTypes = ");
      iw.println("{");
      iw.upIndent();

      Class[] argTypes = method.getParameterTypes();
      for (int i = 0, len = argTypes.length; i < len; ++i) {
        if (i != 0) iw.println(",");
        iw.print(CodegenUtils.simpleClassName(argTypes[i]) + ".class");
      }
      iw.println();
      iw.downIndent();
      iw.println("};");
      iw.println(
          "Method method = Connection.class.getMethod( \042"
              + method.getName()
              + "\042 , argTypes );");
      iw.println();
      iw.println("Object[] args = ");
      iw.println("{");
      iw.upIndent();

      for (int i = 0, len = argTypes.length; i < len; ++i) {
        if (i != 0) iw.println(",");
        String argName = CodegenUtils.generatedArgumentName(i);
        Class argType = argTypes[i];
        if (argType.isPrimitive()) {
          if (argType == boolean.class) iw.print("Boolean.valueOf( " + argName + " )");
          else if (argType == byte.class) iw.print("new Byte( " + argName + " )");
          else if (argType == char.class) iw.print("new Character( " + argName + " )");
          else if (argType == short.class) iw.print("new Short( " + argName + " )");
          else if (argType == int.class) iw.print("new Integer( " + argName + " )");
          else if (argType == long.class) iw.print("new Long( " + argName + " )");
          else if (argType == float.class) iw.print("new Float( " + argName + " )");
          else if (argType == double.class) iw.print("new Double( " + argName + " )");
        } else iw.print(argName);
      }

      iw.downIndent();
      iw.println("};");
    }
Beispiel #14
0
    protected void generateExtraDeclarations(Class intfcl, String genclass, IndentedWriter iw)
        throws IOException {
      iw.println("boolean txn_known_resolved = true;");
      iw.println();
      iw.println("DatabaseMetaData metaData = null;");
      iw.println();

      //          We've nothing to do with preferredTestQuery here... the stuff below was
      // unnecessary

      //          iw.println("String preferredTestQuery = null;");
      //          iw.println();
      //          iw.print( CodegenUtils.fqcnLastElement( genclass ) );
      //          iw.println("( " + CodegenUtils.simpleClassName( intfcl ) + " inner,
      // NewPooledConnection parentPooledConnection, String preferredTestQuery )");
      //          iw.println("{");
      //          iw.upIndent();
      //          iw.println("this( inner, parentPooledConnection );");
      //          iw.println("this.preferredTestQuery = preferredTestQuery;");
      //          iw.downIndent();
      //          iw.println("}");
      //          iw.println();

      iw.println("public Object rawConnectionOperation(Method m, Object target, Object[] args)");
      iw.upIndent();
      iw.println(
          "throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, SQLException");
      iw.downIndent();
      iw.println("{");
      iw.upIndent();
      iw.println("maybeDirtyTransaction();");
      iw.println();
      iw.println("if (inner == null)");
      iw.upIndent();
      iw.println("throw new SQLException(\"You cannot operate on a closed Connection!\");");
      iw.downIndent();

      iw.println("if ( target == C3P0ProxyConnection.RAW_CONNECTION)");
      iw.upIndent();
      iw.println("target = inner;");
      iw.downIndent();

      iw.println("for (int i = 0, len = args.length; i < len; ++i)");
      iw.upIndent();
      iw.println("if (args[i] == C3P0ProxyConnection.RAW_CONNECTION)");
      iw.upIndent();
      iw.println("args[i] = inner;");
      iw.downIndent();
      iw.downIndent();

      iw.println("Object out = m.invoke( target, args );");
      iw.println();
      iw.println("// we never cache Statements generated by an operation on the raw Connection");
      iw.println("if (out instanceof CallableStatement)");
      iw.println("{");
      iw.upIndent();
      iw.println("CallableStatement innerStmt = (CallableStatement) out;");
      iw.println("parentPooledConnection.markActiveUncachedStatement( innerStmt );");
      iw.println(
          "out = new NewProxyCallableStatement( innerStmt, parentPooledConnection, false, this );");
      iw.downIndent();
      iw.println("}");
      iw.println("else if (out instanceof PreparedStatement)");
      iw.println("{");
      iw.upIndent();
      iw.println("PreparedStatement innerStmt = (PreparedStatement) out;");
      iw.println("parentPooledConnection.markActiveUncachedStatement( innerStmt );");
      iw.println(
          "out = new NewProxyPreparedStatement( innerStmt, parentPooledConnection, false, this );");
      iw.downIndent();
      iw.println("}");
      iw.println("else if (out instanceof Statement)");
      iw.println("{");
      iw.upIndent();
      iw.println("Statement innerStmt = (Statement) out;");
      iw.println("parentPooledConnection.markActiveUncachedStatement( innerStmt );");
      iw.println("out = new NewProxyStatement( innerStmt, parentPooledConnection, false, this );");
      iw.downIndent();
      iw.println("}");
      iw.println("else if (out instanceof ResultSet)");
      iw.println("{");
      iw.upIndent();
      iw.println("ResultSet innerRs = (ResultSet) out;");
      iw.println("parentPooledConnection.markActiveRawConnectionResultSet( innerRs );");
      iw.println("out = new NewProxyResultSet( innerRs, parentPooledConnection, inner, this );");
      iw.downIndent();
      iw.println("}");
      iw.println("else if (out instanceof DatabaseMetaData)");
      iw.upIndent();
      iw.println(
          "out = new NewProxyDatabaseMetaData( (DatabaseMetaData) out, parentPooledConnection );");
      iw.downIndent();
      iw.println("return out;");
      iw.downIndent();
      iw.println("}");
      iw.println();
      iw.println("synchronized void maybeDirtyTransaction()");
      iw.println("{ txn_known_resolved = false; }");

      super.generateExtraDeclarations(intfcl, genclass, iw);
    }
Beispiel #15
0
    protected void generateDelegateCode(
        Class intfcl, String genclass, Method method, IndentedWriter iw) throws IOException {

      String mname = method.getName();
      if (jdbc4WrapperMethod(mname)) {
        generateWrapperDelegateCode(intfcl, genclass, method, iw);
        return;
      }

      Class retType = method.getReturnType();

      iw.println("if (proxyConn != null) proxyConn.maybeDirtyTransaction();");
      iw.println();

      if (mname.equals("close")) {
        iw.println("if (! this.isDetached())");
        iw.println("{");
        iw.upIndent();

        iw.println("if (creator instanceof Statement)");
        iw.upIndent();
        iw.println(
            "parentPooledConnection.markInactiveResultSetForStatement( (Statement) creator, inner );");
        iw.downIndent();
        iw.println("else if (creator instanceof DatabaseMetaData)");
        iw.upIndent();
        iw.println("parentPooledConnection.markInactiveMetaDataResultSet( inner );");
        iw.downIndent();
        iw.println("else if (creator instanceof Connection)");
        iw.upIndent();
        iw.println("parentPooledConnection.markInactiveRawConnectionResultSet( inner );");
        iw.downIndent();
        iw.println(
            "else throw new InternalError(\042Must be Statement or DatabaseMetaData -- Bad Creator: \042 + creator);");

        iw.println(
            "if (creatorProxy instanceof ProxyResultSetDetachable) ((ProxyResultSetDetachable) creatorProxy).detachProxyResultSet( this );");

        iw.println("this.detach();");
        iw.println("inner.close();");
        iw.println("this.inner = null;");

        iw.downIndent();
        iw.println("}");
      } else if (mname.equals("getStatement")) {
        iw.println("if (creator instanceof Statement)");
        iw.upIndent();
        iw.println("return (Statement) creatorProxy;");
        iw.downIndent();
        iw.println("else if (creator instanceof DatabaseMetaData)");
        iw.upIndent();
        iw.println("return null;");
        iw.downIndent();
        iw.println(
            "else throw new InternalError(\042Must be Statement or DatabaseMetaData -- Bad Creator: \042 + creator);");
      } else if (mname.equals("isClosed")) {
        iw.println("return this.isDetached();");
      } else super.generateDelegateCode(intfcl, genclass, method, iw);
    }
Beispiel #16
0
 void generateTryOpener(IndentedWriter iw) throws IOException {
   iw.println("try");
   iw.println("{");
   iw.upIndent();
 }
Beispiel #17
0
 protected void generateExtraDeclarations(Class intfcl, String genclass, IndentedWriter iw)
     throws IOException {
   super.generateExtraDeclarations(intfcl, genclass, iw);
   iw.println();
   iw.println("Object creator;");
   iw.println("Object creatorProxy;");
   iw.println("NewProxyConnection proxyConn;");
   iw.println();
   iw.print(CodegenUtils.fqcnLastElement(genclass));
   iw.println(
       "( "
           + CodegenUtils.simpleClassName(intfcl)
           + " inner, NewPooledConnection parentPooledConnection, Object c, Object cProxy )");
   iw.println("{");
   iw.upIndent();
   iw.println("this( inner, parentPooledConnection );");
   iw.println("this.creator      = c;");
   iw.println("this.creatorProxy = cProxy;");
   iw.println(
       "if (creatorProxy instanceof NewProxyConnection) this.proxyConn = (NewProxyConnection) cProxy;");
   iw.downIndent();
   iw.println("}");
 }
Beispiel #18
0
    protected void generateDelegateCode(
        Class intfcl, String genclass, Method method, IndentedWriter iw) throws IOException {

      String mname = method.getName();
      if (jdbc4WrapperMethod(mname)) {
        generateWrapperDelegateCode(intfcl, genclass, method, iw);
        return;
      }

      Class retType = method.getReturnType();

      iw.println("maybeDirtyTransaction();");
      iw.println();

      if (ResultSet.class.isAssignableFrom(retType)) {
        iw.println("ResultSet innerResultSet = inner." + CodegenUtils.methodCall(method) + ";");
        iw.println("if (innerResultSet == null) return null;");
        iw.println(
            "parentPooledConnection.markActiveResultSetForStatement( inner, innerResultSet );");
        iw.println(
            "NewProxyResultSet out = new NewProxyResultSet( innerResultSet, parentPooledConnection, inner, this );");
        iw.println("synchronized ( myProxyResultSets ) { myProxyResultSets.add( out ); }");
        iw.println("return out;");
      } else if (mname.equals("getConnection")) {
        iw.println("if (! this.isDetached())");
        iw.upIndent();
        iw.println("return creatorProxy;");
        iw.downIndent();
        iw.println("else");
        iw.upIndent();
        iw.println("throw new SQLException(\"You cannot operate on a closed Statement!\");");
        iw.downIndent();
      } else if (mname.equals("close")) {
        iw.println("if (! this.isDetached())");
        iw.println("{");
        iw.upIndent();
        // iw.println("System.err.println(\042Closing proxy Statement: \042 + this);");
        iw.println("synchronized ( myProxyResultSets )");
        iw.println("{");
        iw.upIndent();
        iw.println("for( Iterator ii = myProxyResultSets.iterator(); ii.hasNext(); )");
        iw.println("{");
        iw.upIndent();
        iw.println("ResultSet closeMe = (ResultSet) ii.next();");
        iw.println("ii.remove();");
        iw.println();
        iw.println("try { closeMe.close(); }");
        iw.println("catch (SQLException e)");
        iw.println("{");
        iw.upIndent();
        iw.println("if (logger.isLoggable( MLevel.WARNING ))");
        iw.upIndent();
        iw.println(
            "logger.log( MLevel.WARNING, \042Exception on close of apparently orphaned ResultSet.\042, e);");
        iw.downIndent();
        iw.downIndent();
        iw.println("}");
        iw.println("if (logger.isLoggable( MLevel.FINE ))");
        iw.upIndent();
        iw.println(
            "logger.log( MLevel.FINE, this + \042 closed orphaned ResultSet: \042 +closeMe);");
        iw.downIndent();
        iw.downIndent();
        iw.println("}");
        iw.downIndent();
        iw.println("}");
        iw.println();
        iw.println("if ( is_cached )");
        iw.upIndent();
        iw.println("parentPooledConnection.checkinStatement( inner );");
        iw.downIndent();
        iw.println("else");
        iw.println("{");
        iw.upIndent();
        iw.println("parentPooledConnection.markInactiveUncachedStatement( inner );");

        iw.println("try{ inner.close(); }");
        iw.println("catch (Exception e )");
        iw.println("{");
        iw.upIndent();

        iw.println("if (logger.isLoggable( MLevel.WARNING ))");
        iw.upIndent();
        iw.println(
            "logger.log( MLevel.WARNING, \042Exception on close of inner statement.\042, e);");
        iw.downIndent();

        iw.println("SQLException sqle = SqlUtils.toSQLException( e );");
        iw.println("throw sqle;");
        iw.downIndent();
        iw.println("}");
        iw.downIndent();
        iw.println("}");

        iw.println();
        iw.println("this.detach();");
        iw.println("this.inner = null;");
        iw.println("this.creatorProxy = null;");

        iw.downIndent();
        iw.println("}");
      } else if (mname.equals("isClosed")) {
        iw.println("return this.isDetached();");
      } else super.generateDelegateCode(intfcl, genclass, method, iw);
    }
Beispiel #19
0
  void generateTryCloserAndCatch(Class intfcl, String genclass, Method method, IndentedWriter iw)
      throws IOException {
    iw.downIndent();
    iw.println("}");
    iw.println("catch (NullPointerException exc)");
    iw.println("{");
    iw.upIndent();
    iw.println("if ( this.isDetached() )");
    iw.println("{");
    iw.upIndent();
    // iw.println( "System.err.print(\042probably 'cuz we're closed -- \042);" );
    // iw.println( "exc.printStackTrace();" );
    if ("close".equals(method.getName())) {
      iw.println("if (Debug.DEBUG && logger.isLoggable( MLevel.FINE ))");
      iw.println("{");
      iw.upIndent();
      iw.println("logger.log( MLevel.FINE, this + \042: close() called more than once.\042 );");

      // premature-detach-debug-debug only!
      if (PREMATURE_DETACH_DEBUG) {
        iw.println("prematureDetachRecorder.record();");
        iw.println(
            "logger.warning( prematureDetachRecorder.getDump(\042Apparent multiple close of "
                + getInnerTypeName()
                + ".\042) );");
      }
      // end-premature-detach-debug-only!

      iw.downIndent();
      iw.println("}");
    } else {
      // premature-detach-debug-debug only!
      if (PREMATURE_DETACH_DEBUG) {
        iw.println("prematureDetachRecorder.record();");
        iw.println(
            "logger.warning( prematureDetachRecorder.getDump(\042Use of already detached "
                + getInnerTypeName()
                + ".\042) );");
      }
      // end-premature-detach-debug-only!

      iw.println(
          "throw SqlUtils.toSQLException(\042You can't operate on a closed "
              + getInnerTypeName()
              + "!!!\042, exc);");
    }
    iw.downIndent();
    iw.println("}");
    iw.println("else throw exc;");
    iw.downIndent();
    iw.println("}");
    iw.println("catch (Exception exc)");
    iw.println("{");
    iw.upIndent();
    iw.println("if (! this.isDetached())");
    iw.println("{");
    iw.upIndent();
    // iw.println( "exc.printStackTrace();" );
    iw.println("throw parentPooledConnection.handleThrowable( exc );");
    iw.downIndent();
    iw.println("}");
    iw.println("else throw SqlUtils.toSQLException( exc );");
    iw.downIndent();
    iw.println("}");
  }
Beispiel #20
0
 protected void generateExtraImports(IndentedWriter iw) throws IOException {
   super.generateExtraImports(iw);
   iw.println("import java.lang.reflect.InvocationTargetException;");
   iw.println("import java.util.HashSet;");
   iw.println("import java.util.Iterator;");
 }
Beispiel #21
0
  protected void generateExtraDeclarations(Class intfcl, String genclass, IndentedWriter iw)
      throws IOException {
    // premature-detach-debug-debug only!
    if (PREMATURE_DETACH_DEBUG) {
      iw.println("com.mchange.v2.debug.ThreadNameStackTraceRecorder prematureDetachRecorder");
      iw.upIndent();
      iw.println(
          "= new com.mchange.v2.debug.ThreadNameStackTraceRecorder(\042Premature Detach Recorder\042);");
      iw.downIndent();
    }
    // end-premature-detach-debug-only!

    iw.println("private final static MLogger logger = MLog.getLogger( \042" + genclass + "\042 );");
    iw.println();

    iw.println("volatile NewPooledConnection parentPooledConnection;");
    iw.println();

    iw.println("ConnectionEventListener cel = new ConnectionEventListener()");
    iw.println("{");
    iw.upIndent();

    iw.println("public void connectionErrorOccurred(ConnectionEvent evt)");
    iw.println(
        "{ /* DON'T detach()... IGNORE -- this could be an ordinary error. Leave it to the PooledConnection to test, but leave proxies intact */ }");
    // BAD puppy -- iw.println("{ detach(); }");

    iw.println();
    iw.println("public void connectionClosed(ConnectionEvent evt)");
    iw.println("{ detach(); }");

    iw.downIndent();
    iw.println("};");
    iw.println();

    iw.println("void attach( NewPooledConnection parentPooledConnection )");
    iw.println("{");
    iw.upIndent();
    // iw.println("System.err.println( \"attach( \" +  parentPooledConnection + \" )\" );");
    iw.println("this.parentPooledConnection = parentPooledConnection;");
    iw.println("parentPooledConnection.addConnectionEventListener( cel );");
    iw.downIndent();
    iw.println("}");
    iw.println();
    iw.println("private void detach()");
    iw.println("{");
    iw.upIndent();

    // factored out so we could define debug versions...
    writeDetachBody(iw);

    iw.downIndent();
    iw.println("}");
    iw.println();
    iw.print(CodegenUtils.fqcnLastElement(genclass));
    iw.println(
        "( "
            + CodegenUtils.simpleClassName(intfcl)
            + " inner, NewPooledConnection parentPooledConnection )");
    iw.println("{");
    iw.upIndent();
    iw.println("this( inner );");
    iw.println("attach( parentPooledConnection );");
    generateExtraConstructorCode(intfcl, genclass, iw);
    iw.downIndent();
    iw.println("}");
    iw.println();
    iw.println("boolean isDetached()");
    iw.println("{ return (this.parentPooledConnection == null); }");
    iw.println();
    iw.println(
        "public String toString() { return super.toString() + \042 [wrapping: \042 + inner + \042]\042; }");

    /*

    // Support JDBC4 Wrapper interface
    String wrappedLiteral = intfcl.getName() + ".class";
    iw.println();
    iw.println("public boolean isWrapperFor(Class<?> iface) throws SQLException");
    iw.println("{");
    iw.upIndent();
    iw.println("return ( " + wrappedLiteral + "== iface || " + wrappedLiteral + ".isAssignableFrom( iface ) );" );
    iw.downIndent();
    iw.println("}");
    iw.println();
    iw.println("public <T> T unwrap(Class<T> iface) throws SQLException");
    iw.println("{");
    iw.upIndent();
    iw.println("if (this.isWrapperFor( iface )) return inner;");
    iw.println("else throw new SQLException( this + \042 is not a wrapper for \042 + iface.getName());");
    iw.downIndent();
    iw.println("}");

    */

    iw.println();
    generateIsWrapperHelperMethods(intfcl, iw);
  }
Beispiel #22
0
    protected void generateDelegateCode(
        Class intfcl, String genclass, Method method, IndentedWriter iw) throws IOException {
      String mname = method.getName();
      if (jdbc4WrapperMethod(mname)) {
        generateWrapperDelegateCode(intfcl, genclass, method, iw);
        return;
      }

      if (mname.equals("createStatement")) {
        iw.println("txn_known_resolved = false;");
        iw.println();
        iw.println("Statement innerStmt = inner." + CodegenUtils.methodCall(method) + ";");
        iw.println("parentPooledConnection.markActiveUncachedStatement( innerStmt );");
        iw.println(
            "return new NewProxyStatement( innerStmt, parentPooledConnection, false, this );");
      } else if (mname.equals("prepareStatement")) {
        iw.println("txn_known_resolved = false;");
        iw.println();
        iw.println("PreparedStatement innerStmt;");
        iw.println();
        iw.println("if ( parentPooledConnection.isStatementCaching() )");
        iw.println("{");
        iw.upIndent();

        iw.println("try");
        iw.println("{");
        iw.upIndent();

        generateFindMethodAndArgs(method, iw);
        iw.println(
            "innerStmt = (PreparedStatement) parentPooledConnection.checkoutStatement( method, args );");
        iw.println(
            "return new NewProxyPreparedStatement( innerStmt, parentPooledConnection, true, this );");

        iw.downIndent();
        iw.println("}");
        iw.println("catch (ResourceClosedException e)");
        iw.println("{");
        iw.upIndent();

        iw.println("if ( logger.isLoggable( MLevel.FINE ) )");
        iw.upIndent();
        iw.println(
            "logger.log( MLevel.FINE, "
                + "\042A Connection tried to prepare a Statement via a Statement cache that is already closed. "
                + "This can happen -- rarely -- if a DataSource is closed or reset() while Connections are checked-out and in use.\042, e );");
        iw.downIndent();

        // repeated code... any changes probably need to be duplicated below
        iw.println("innerStmt = inner." + CodegenUtils.methodCall(method) + ";");
        iw.println("parentPooledConnection.markActiveUncachedStatement( innerStmt );");
        iw.println(
            "return new NewProxyPreparedStatement( innerStmt, parentPooledConnection, false, this );");

        iw.downIndent();
        iw.println("}");

        iw.downIndent();
        iw.println("}");
        iw.println("else");
        iw.println("{");
        iw.upIndent();

        // repeated code... any changes probably need to be duplicated above
        iw.println("innerStmt = inner." + CodegenUtils.methodCall(method) + ";");
        iw.println("parentPooledConnection.markActiveUncachedStatement( innerStmt );");
        iw.println(
            "return new NewProxyPreparedStatement( innerStmt, parentPooledConnection, false, this );");

        iw.downIndent();
        iw.println("}");

      } else if (mname.equals("prepareCall")) {
        iw.println("txn_known_resolved = false;");
        iw.println();
        iw.println("CallableStatement innerStmt;");
        iw.println();
        iw.println("if ( parentPooledConnection.isStatementCaching() )");
        iw.println("{");
        iw.upIndent();

        iw.println("try");
        iw.println("{");
        iw.upIndent();

        generateFindMethodAndArgs(method, iw);
        iw.println(
            "innerStmt = (CallableStatement) parentPooledConnection.checkoutStatement( method, args );");
        iw.println(
            "return new NewProxyCallableStatement( innerStmt, parentPooledConnection, true, this );");

        iw.downIndent();
        iw.println("}");
        iw.println("catch (ResourceClosedException e)");
        iw.println("{");
        iw.upIndent();

        iw.println("if ( logger.isLoggable( MLevel.FINE ) )");
        iw.upIndent();
        iw.println(
            "logger.log( MLevel.FINE, "
                + "\042A Connection tried to prepare a CallableStatement via a Statement cache that is already closed. "
                + "This can happen -- rarely -- if a DataSource is closed or reset() while Connections are checked-out and in use.\042, e );");
        iw.downIndent();

        // repeated code... any changes probably need to be duplicated below
        iw.println("innerStmt = inner." + CodegenUtils.methodCall(method) + ";");
        iw.println("parentPooledConnection.markActiveUncachedStatement( innerStmt );");
        iw.println(
            "return new NewProxyCallableStatement( innerStmt, parentPooledConnection, false, this );");

        iw.downIndent();
        iw.println("}");

        iw.downIndent();
        iw.println("}");
        iw.println("else");
        iw.println("{");
        iw.upIndent();

        // repeated code... any changes probably need to be duplicated above
        iw.println("innerStmt = inner." + CodegenUtils.methodCall(method) + ";");
        iw.println("parentPooledConnection.markActiveUncachedStatement( innerStmt );");
        iw.println(
            "return new NewProxyCallableStatement( innerStmt, parentPooledConnection, false, this );");

        iw.downIndent();
        iw.println("}");

      } else if (mname.equals("getMetaData")) {
        iw.println("txn_known_resolved = false;");
        iw.println();
        iw.println("if (this.metaData == null)");
        iw.println("{");
        iw.upIndent();
        iw.println(
            "DatabaseMetaData innerMetaData = inner." + CodegenUtils.methodCall(method) + ";");
        iw.println(
            "this.metaData = new NewProxyDatabaseMetaData( innerMetaData, parentPooledConnection, this );");
        iw.downIndent();
        iw.println("}");
        iw.println("return this.metaData;");
      } else if (mname.equals("setTransactionIsolation")) {
        // do nothing with txn_known_resolved

        super.generateDelegateCode(intfcl, genclass, method, iw);
        iw.println(
            "parentPooledConnection.markNewTxnIsolation( "
                + CodegenUtils.generatedArgumentName(0)
                + " );");
      } else if (mname.equals("setCatalog")) {
        // do nothing with txn_known_resolved

        super.generateDelegateCode(intfcl, genclass, method, iw);
        iw.println(
            "parentPooledConnection.markNewCatalog( "
                + CodegenUtils.generatedArgumentName(0)
                + " );");
      } else if (mname.equals("setHoldability")) {
        // do nothing with txn_known_resolved

        super.generateDelegateCode(intfcl, genclass, method, iw);
        iw.println(
            "parentPooledConnection.markNewHoldability( "
                + CodegenUtils.generatedArgumentName(0)
                + " );");
      } else if (mname.equals("setReadOnly")) {
        // do nothing with txn_known_resolved

        super.generateDelegateCode(intfcl, genclass, method, iw);
        iw.println(
            "parentPooledConnection.markNewReadOnly( "
                + CodegenUtils.generatedArgumentName(0)
                + " );");
      } else if (mname.equals("setTypeMap")) {
        // do nothing with txn_known_resolved

        super.generateDelegateCode(intfcl, genclass, method, iw);
        iw.println(
            "parentPooledConnection.markNewTypeMap( "
                + CodegenUtils.generatedArgumentName(0)
                + " );");
      } else if (mname.equals("getWarnings") || mname.equals("clearWarnings")) {
        // do nothing with txn_known_resolved

        super.generateDelegateCode(intfcl, genclass, method, iw);
      } else if (mname.equals("close")) {
        iw.println("if (! this.isDetached())");
        iw.println("{");
        iw.upIndent();
        iw.println("NewPooledConnection npc = parentPooledConnection;");
        iw.println("this.detach();");
        iw.println("npc.markClosedProxyConnection( this, txn_known_resolved );");
        iw.println("this.inner = null;");
        iw.downIndent();
        iw.println("}");
        iw.println("else if (Debug.DEBUG && logger.isLoggable( MLevel.FINE ))");
        iw.println("{");
        iw.upIndent();
        iw.println("logger.log( MLevel.FINE, this + \042: close() called more than once.\042 );");

        // premature-detach-debug-debug only!
        if (PREMATURE_DETACH_DEBUG) {
          iw.println("prematureDetachRecorder.record();");
          iw.println(
              "logger.warning( prematureDetachRecorder.getDump(\042Apparent multiple close of "
                  + getInnerTypeName()
                  + ".\042) );");
        }
        // end-premature-detach-debug-only!

        iw.downIndent();
        iw.println("}");
      } else if (mname.equals("isClosed")) {
        iw.println("return this.isDetached();");
      } else if (mname.equals("isValid")) {
        iw.println("if (this.isDetached()) return false;");

        super.generateDelegateCode(intfcl, genclass, method, iw);
      } else {
        boolean known_resolved =
            (mname.equals("commit") || mname.equals("rollback") || mname.equals("setAutoCommit"));

        if (!known_resolved) {
          iw.println("txn_known_resolved = false;");
          iw.println();
        }
        super.generateDelegateCode(intfcl, genclass, method, iw);
        if (known_resolved) {
          iw.println();
          iw.println("txn_known_resolved = true;");
        }
      }
    }