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add AST node

This commit is contained in:
XudongXie 2024-08-18 22:42:41 +08:00
parent d4aa1c1ffd
commit 7beef2b80f
9 changed files with 241 additions and 53 deletions
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124
sqlTranslate/.idea/uiDesigner.xml Normal file
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@ -0,0 +1,124 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="Palette2">
<group name="Swing">
<item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
<default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
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<initial-values>
<property name="text" value="Button" />
</initial-values>
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<initial-values>
<property name="text" value="RadioButton" />
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<initial-values>
<property name="text" value="CheckBox" />
</initial-values>
</item>
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<initial-values>
<property name="text" value="Label" />
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<item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.svg" removable="false" auto-create-binding="true" can-attach-label="false">
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</item>
<item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.svg" removable="false" auto-create-binding="false" can-attach-label="false">
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<preferred-size width="200" height="200" />
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</item>
<item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.svg" removable="false" auto-create-binding="true" can-attach-label="true">
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</item>
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</item>
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</item>
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</item>
<item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.svg" removable="false" auto-create-binding="false" can-attach-label="false">
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</item>
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</item>
<item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
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</item>
</group>
</component>
</project>

37
sqlTranslate/.idea/workspace.xml
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@ -4,12 +4,16 @@
<option name="autoReloadType" value="SELECTIVE" />
</component>
<component name="ChangeListManager">
<list default="true" id="d8d12963-4777-48e3-9669-309cf5e41d60" name="更改" comment="lexer">
<change afterPath="$PROJECT_DIR$/src/main/java/Parser/ASTNode.java" afterDir="false" />
<list default="true" id="d8d12963-4777-48e3-9669-309cf5e41d60" name="更改" comment="AST node">
<change afterPath="$PROJECT_DIR$/.idea/uiDesigner.xml" afterDir="false" />
<change afterPath="$PROJECT_DIR$/src/main/java/Generator/OpenGaussGenerator.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/src/main/java/Parser/AST/CreateTabNode.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/src/main/java/Parser/AST/SelectStatementNode.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/src/main/java/Parser/AST/TableTypeNode.java" afterDir="false" />
<change afterPath="$PROJECT_DIR$/src/main/java/Parser/OracleParser.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
<change beforePath="$PROJECT_DIR$/src/main/java/Lexer/OracleLexer.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/Lexer/OracleLexer.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/src/main/java/Lexer/Token.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/Lexer/Token.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/src/main/java/Main.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/Main.java" afterDir="false" />
<change beforePath="$PROJECT_DIR$/src/main/java/Parser/ASTNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/Parser/AST/ASTNode.java" afterDir="false" />
</list>
<option name="SHOW_DIALOG" value="false" />
<option name="HIGHLIGHT_CONFLICTS" value="true" />
@ -41,13 +45,14 @@
<option name="hideEmptyMiddlePackages" value="true" />
<option name="showLibraryContents" value="true" />
</component>
<component name="PropertiesComponent">{
&quot;keyToString&quot;: {
&quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
&quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
&quot;SHARE_PROJECT_CONFIGURATION_FILES&quot;: &quot;true&quot;
<component name="PropertiesComponent"><![CDATA[{
"keyToString": {
"RunOnceActivity.OpenProjectViewOnStart": "true",
"RunOnceActivity.ShowReadmeOnStart": "true",
"SHARE_PROJECT_CONFIGURATION_FILES": "true",
"last_opened_file_path": "F:/oracle2opengauss/examples/sqlTranslate"
}
}</component>
}]]></component>
<component name="RunManager" selected="应用程序.Main">
<configuration name="App" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
<option name="MAIN_CLASS_NAME" value="org.example.App" />
@ -116,7 +121,14 @@
<option name="project" value="LOCAL" />
<updated>1723818930161</updated>
</task>
<option name="localTasksCounter" value="3" />
<task id="LOCAL-00003" summary="AST node">
<created>1723871742424</created>
<option name="number" value="00003" />
<option name="presentableId" value="LOCAL-00003" />
<option name="project" value="LOCAL" />
<updated>1723871742424</updated>
</task>
<option name="localTasksCounter" value="4" />
<servers />
</component>
<component name="Vcs.Log.Tabs.Properties">
@ -133,6 +145,7 @@
<component name="VcsManagerConfiguration">
<MESSAGE value="init" />
<MESSAGE value="lexer" />
<option name="LAST_COMMIT_MESSAGE" value="lexer" />
<MESSAGE value="AST node" />
<option name="LAST_COMMIT_MESSAGE" value="AST node" />
</component>
</project>

4
sqlTranslate/src/main/java/Generator/OpenGaussGenerator.java Normal file
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@ -0,0 +1,4 @@
package Generator;
public class OpenGaussGenerator {
}

3
sqlTranslate/src/main/java/Lexer/OracleLexer.java
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@ -9,6 +9,9 @@ import java.util.regex.Pattern;
public class OracleLexer {
public static final String[] keywords = {"SELECT", "FROM", "WHERE", "AND", "OR", "INSERT", "UPDATE", "DELETE",
// keywords of creating table
"CREATE", "TABLE", "TEMPORARY", "",
"now()"};
private static final Pattern TOKEN_PATTERN = Pattern.compile(
"(now\\(\\))|" + // now() function

45
sqlTranslate/src/main/java/Parser/ASTNode.java → sqlTranslate/src/main/java/Parser/AST/ASTNode.java
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@ -1,12 +1,11 @@
package Parser;
package Parser.AST;
import Lexer.Token;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class ASTNode {
public abstract class ASTNode {
private Token token;
private ASTNode parent;
private List<ASTNode> children = new ArrayList<>();
@ -96,50 +95,14 @@ public class ASTNode {
public String toQueryString() {
StringBuilder queryString = new StringBuilder();
visit(this, queryString, false);
visit(this, queryString);
return queryString.toString();
}
private void visit(ASTNode node, StringBuilder queryString, boolean hasPrespace) {
if (node == null) {
return;
}
if (node.getToken().hasType(Token.TokenType.KEYWORD)) {
String value = node.getToken().getValue();
if (value == null || value.trim().isEmpty()) {
return;
}
boolean preSpace = true;
if (queryString.length() == 0) {
preSpace = false;
} else if (queryString.charAt(queryString.length() - 1) == '(') {
preSpace = false;
} else if (Arrays.asList(",", ";", ")").contains(value)) {
preSpace = false;
} else if (!hasPrespace) {
// If the token does not have pre space, we should not add, either.
preSpace = false;
}
if (preSpace) {
queryString.append(" ");
}
queryString.append(value);
} else {
for (int i = 0; i < node.getChildren().size(); i++) {
ASTNode childNode = node.getChildren().get(i);
if (i == 0) {
visit(childNode, queryString, hasPrespace || childNode.getToken().hasPreSpace());
} else {
visit(childNode, queryString, childNode.getToken().hasPreSpace());
}
}
}
}
public abstract void visit(ASTNode node, StringBuilder queryString);
@Override
public String toString() {
return token.getValue();
}
}

28
sqlTranslate/src/main/java/Parser/AST/CreateTabNode.java Normal file
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@ -0,0 +1,28 @@
package Parser.AST;
import Lexer.Token;
public class CreateTabNode extends ASTNode{
public CreateTabNode(ASTNode node) {
super(node);
}
public CreateTabNode(Token token) {
super(token);
}
@Override
public void visit(ASTNode node, StringBuilder queryString) {
// judge the type of the table
if (getChildren().get(0) instanceof TableTypeNode) {
queryString.append("CREATE ");
}
else {
queryString.append("CREATE TABLE ");
}
for (ASTNode child : getChildren())
{
child.visit(child, queryString);
}
}
}

25
sqlTranslate/src/main/java/Parser/AST/SelectStatementNode.java Normal file
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@ -0,0 +1,25 @@
package Parser.AST;
import Lexer.Token;
public class SelectStatementNode extends ASTNode{
public SelectStatementNode(ASTNode node)
{
super(node);
}
public SelectStatementNode(Token token)
{
super(token);
}
@Override
public void visit(ASTNode node, StringBuilder queryString)
{
queryString.append("SELECT ");
for (ASTNode child : getChildren())
{
child.visit(child, queryString);
}
}
}

24
sqlTranslate/src/main/java/Parser/AST/TableTypeNode.java Normal file
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@ -0,0 +1,24 @@
package Parser.AST;
import Lexer.Token;
public class TableTypeNode extends ASTNode{
public TableTypeNode(ASTNode node)
{
super(node);
}
public TableTypeNode(Token token)
{
super(token);
}
public void visit(ASTNode node, StringBuilder queryString)
{
queryString.append(getToken() + " ");
for (ASTNode child : getChildren())
{
child.visit(child, queryString);
}
}
}

4
sqlTranslate/src/main/java/Parser/OracleParser.java Normal file
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@ -0,0 +1,4 @@
package Parser;
public class OracleParser {
}