Exemplo n.º 1
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("};");
    }
Exemplo n.º 2
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;");
        }
      }
    }