WallFilter support postgres

src/main/java/com/alibaba/druid/sql/dialect/postgresql/visitor/PGExportParameterVisitor.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * 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.
+ */
+package com.alibaba.druid.sql.dialect.postgresql.visitor;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.alibaba.druid.sql.ast.SQLOrderBy;
+import com.alibaba.druid.sql.ast.expr.SQLBetweenExpr;
+import com.alibaba.druid.sql.ast.expr.SQLBinaryOpExpr;
+import com.alibaba.druid.sql.ast.expr.SQLInListExpr;
+import com.alibaba.druid.sql.ast.expr.SQLMethodInvokeExpr;
+import com.alibaba.druid.sql.ast.statement.SQLSelectGroupByClause;
+import com.alibaba.druid.sql.ast.statement.SQLSelectItem;
+import com.alibaba.druid.sql.visitor.ExportParameterVisitor;
+import com.alibaba.druid.sql.visitor.ExportParameterVisitorUtils;
+
+public class PGExportParameterVisitor extends PGASTVisitorAdapter implements ExportParameterVisitor {
+
+    private final List<Object> parameters;
+
+    public PGExportParameterVisitor() {
+        this(new ArrayList<Object>());
+    }
+
+    public PGExportParameterVisitor(List<Object> parameters){
+        this.parameters = parameters;
+    }
+
+    public List<Object> getParameters() {
+        return parameters;
+    }
+
+    @Override
+    public boolean visit(SQLSelectItem x) {
+        return false;
+    }
+
+    @Override
+    public boolean visit(SQLOrderBy x) {
+        return false;
+    }
+
+    @Override
+    public boolean visit(SQLSelectGroupByClause x) {
+        return false;
+    }
+
+    @Override
+    public boolean visit(SQLMethodInvokeExpr x) {
+        ExportParameterVisitorUtils.exportParamterAndAccept(this.parameters, x.getParameters());
+
+        return true;
+    }
+
+    @Override
+    public boolean visit(SQLInListExpr x) {
+        ExportParameterVisitorUtils.exportParamterAndAccept(this.parameters, x.getTargetList());
+
+        return true;
+    }
+
+    @Override
+    public boolean visit(SQLBetweenExpr x) {
+        ExportParameterVisitorUtils.exportParameter(this.parameters, x);
+        return true;
+    }
+
+    public boolean visit(SQLBinaryOpExpr x) {
+        ExportParameterVisitorUtils.exportParameter(this.parameters, x);
+        return true;
+    }
+
+}