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Posted to commits@cayenne.apache.org by nt...@apache.org on 2017/08/16 15:36:55 UTC
[03/13] cayenne git commit: Own template render implementation: first
draft
Own template render implementation: first draft
Project: http://git-wip-us.apache.org/repos/asf/cayenne/repo
Commit: http://git-wip-us.apache.org/repos/asf/cayenne/commit/55e3c975
Tree: http://git-wip-us.apache.org/repos/asf/cayenne/tree/55e3c975
Diff: http://git-wip-us.apache.org/repos/asf/cayenne/diff/55e3c975
Branch: refs/heads/master
Commit: 55e3c975bfe3195f5bb87900a207c88878b799a5
Parents: a6c5efb
Author: Nikita Timofeev <st...@gmail.com>
Authored: Mon Aug 7 17:49:03 2017 +0300
Committer: Nikita Timofeev <st...@gmail.com>
Committed: Wed Aug 16 18:29:23 2017 +0300
----------------------------------------------------------------------
.../template/CayenneSQLTemplateProcessor.java | 69 +
.../org/apache/cayenne/template/Context.java | 80 +
.../org/apache/cayenne/template/Directive.java | 31 +
.../apache/cayenne/template/directive/Bind.java | 56 +
.../cayenne/template/parser/ASTBlock.java | 44 +
.../cayenne/template/parser/ASTBoolScalar.java | 37 +
.../cayenne/template/parser/ASTDirective.java | 43 +
.../cayenne/template/parser/ASTExpression.java | 61 +
.../cayenne/template/parser/ASTFloatScalar.java | 43 +
.../cayenne/template/parser/ASTIfElse.java | 46 +
.../cayenne/template/parser/ASTIntScalar.java | 48 +
.../cayenne/template/parser/ASTMethod.java | 100 ++
.../template/parser/ASTStringScalar.java | 32 +
.../apache/cayenne/template/parser/ASTText.java | 31 +
.../cayenne/template/parser/ASTVariable.java | 73 +
.../cayenne/template/parser/ExpressionNode.java | 37 +
.../parser/JJTSQLTemplateParserState.java | 123 ++
.../cayenne/template/parser/JavaCharStream.java | 610 ++++++++
.../apache/cayenne/template/parser/Node.java | 70 +
.../cayenne/template/parser/ParseException.java | 192 +++
.../template/parser/SQLTemplateParser.java | 634 ++++++++
.../parser/SQLTemplateParserConstants.java | 143 ++
.../parser/SQLTemplateParserTokenManager.java | 1440 ++++++++++++++++++
.../parser/SQLTemplateParserTreeConstants.java | 35 +
.../cayenne/template/parser/ScalarNode.java | 65 +
.../cayenne/template/parser/SimpleNode.java | 90 ++
.../apache/cayenne/template/parser/Token.java | 150 ++
.../cayenne/template/parser/TokenMgrError.java | 166 ++
.../template/parser/SQLTemplateParser.jjt | 327 ++++
29 files changed, 4876 insertions(+)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/CayenneSQLTemplateProcessor.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/CayenneSQLTemplateProcessor.java b/cayenne-server/src/main/java/org/apache/cayenne/template/CayenneSQLTemplateProcessor.java
new file mode 100644
index 0000000..062f1c5
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/CayenneSQLTemplateProcessor.java
@@ -0,0 +1,69 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template;
+
+import java.io.StringReader;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.cayenne.CayenneRuntimeException;
+import org.apache.cayenne.access.jdbc.SQLStatement;
+import org.apache.cayenne.access.jdbc.SQLTemplateProcessor;
+import org.apache.cayenne.template.parser.ASTBlock;
+import org.apache.cayenne.template.parser.ParseException;
+import org.apache.cayenne.template.parser.SQLTemplateParser;
+
+
+/**
+ * @since 4.1
+ */
+public class CayenneSQLTemplateProcessor implements SQLTemplateProcessor {
+
+ @Override
+ public SQLStatement processTemplate(String template, Map<String, ?> parameters) {
+ Context context = new Context();
+ context.addParameters(parameters);
+ return process(template, context);
+ }
+
+ @Override
+ public SQLStatement processTemplate(String template, List<Object> positionalParameters) {
+ Context context = new Context();
+ Map<String, Object> parameters = new HashMap<>();
+ int i=0;
+ for(Object param : positionalParameters) {
+ parameters.put(String.valueOf(i++), param);
+ }
+ context.addParameters(parameters);
+ return process(template, context);
+ }
+
+ protected SQLStatement process(String template, Context context) {
+ SQLTemplateParser parser = new SQLTemplateParser(new StringReader(template));
+ try {
+ ASTBlock block = parser.template();
+ String sql = block.evaluate(context);
+ return new SQLStatement(sql, context.getColumnDescriptors(), context.getParameterBindings());
+ } catch (ParseException ex) {
+ throw new CayenneRuntimeException("Error parsing template '%s' : %s", template, ex.getMessage());
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/Context.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/Context.java b/cayenne-server/src/main/java/org/apache/cayenne/template/Context.java
new file mode 100644
index 0000000..7ccb911
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/Context.java
@@ -0,0 +1,80 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.apache.cayenne.access.jdbc.ColumnDescriptor;
+import org.apache.cayenne.access.translator.ParameterBinding;
+import org.apache.cayenne.template.directive.Bind;
+
+/**
+ * @since 4.1
+ */
+public class Context {
+
+ Map<String, Directive> directives = new HashMap<>();
+
+ Map<String, Object> objects = new HashMap<>();
+
+ List<ParameterBinding> parameterBindings = new ArrayList<>();
+
+ List<ColumnDescriptor> columnDescriptors = new ArrayList<>();
+
+ public Context() {
+ directives.put("bind", new Bind());
+ }
+
+ public Directive getDirective(String name) {
+ return directives.get(name);
+ }
+
+ public Object getObject(String name) {
+ return objects.get(name);
+ }
+
+ public void addParameters(Map<String, ?> parameters) {
+ objects.putAll(parameters);
+ }
+
+ public void addDirective(String name, Directive directive) {
+ directives.put(name, directive);
+ }
+
+ public void addParameterBinding(ParameterBinding binding) {
+ parameterBindings.add(binding);
+ }
+
+ public void addColumnDescriptor(ColumnDescriptor descriptor) {
+ columnDescriptors.add(descriptor);
+ }
+
+ public ColumnDescriptor[] getColumnDescriptors() {
+ return columnDescriptors.toArray(new ColumnDescriptor[0]);
+ }
+
+ public ParameterBinding[] getParameterBindings() {
+ return parameterBindings.toArray(new ParameterBinding[0]);
+ }
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/Directive.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/Directive.java b/cayenne-server/src/main/java/org/apache/cayenne/template/Directive.java
new file mode 100644
index 0000000..94c0818
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/Directive.java
@@ -0,0 +1,31 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template;
+
+import org.apache.cayenne.template.parser.ASTExpression;
+
+/**
+ * @since 4.1
+ */
+public interface Directive {
+
+ String apply(Context context, ASTExpression... expressions);
+
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/directive/Bind.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/directive/Bind.java b/cayenne-server/src/main/java/org/apache/cayenne/template/directive/Bind.java
new file mode 100644
index 0000000..b867072
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/directive/Bind.java
@@ -0,0 +1,56 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.directive;
+
+import org.apache.cayenne.access.translator.ParameterBinding;
+import org.apache.cayenne.dba.TypesMapping;
+import org.apache.cayenne.template.Context;
+import org.apache.cayenne.template.Directive;
+import org.apache.cayenne.template.parser.ASTExpression;
+
+/**
+ * @since 4.1
+ */
+public class Bind implements Directive {
+
+ @Override
+ public String apply(Context context, ASTExpression... expressions) {
+ if(expressions.length < 2) {
+ throw new IllegalArgumentException();
+ }
+
+ Object value = expressions[0].evaluateAsObject(context);
+ String jdbcTypeName = expressions[1].evaluate(context);
+ int jdbcType;
+ if (jdbcTypeName != null) {
+ jdbcType = TypesMapping.getSqlTypeByName(jdbcTypeName);
+ } else if (value != null) {
+ jdbcType = TypesMapping.getSqlTypeByJava(value.getClass());
+ } else {
+ jdbcType = TypesMapping.getSqlTypeByName(TypesMapping.SQL_NULL);
+ }
+ int scale = expressions.length < 3 ? -1 : (int)expressions[2].evaluateAsLong(context);
+
+ ParameterBinding binding = new ParameterBinding(value, jdbcType, scale);
+ context.addParameterBinding(binding);
+
+ return "?";
+ }
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTBlock.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTBlock.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTBlock.java
new file mode 100644
index 0000000..743756f
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTBlock.java
@@ -0,0 +1,44 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+import org.apache.cayenne.template.Context;
+
+/**
+ * This is a root node of parsed template.
+ * It can be nested inside #if .. #else .. #end directive.
+ *
+ * @since 4.1
+ */
+public class ASTBlock extends SimpleNode {
+
+ public ASTBlock(int id) {
+ super(id);
+ }
+
+ @Override
+ public String evaluate(Context context) {
+ StringBuilder builder = new StringBuilder();
+ for(Node node : children) {
+ builder.append(node.evaluate(context));
+ }
+ return builder.toString();
+ }
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTBoolScalar.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTBoolScalar.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTBoolScalar.java
new file mode 100644
index 0000000..de279c0
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTBoolScalar.java
@@ -0,0 +1,37 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+import org.apache.cayenne.template.Context;
+
+/**
+ * @since 4.1
+ */
+public class ASTBoolScalar extends ScalarNode<Boolean> {
+
+ public ASTBoolScalar(int id) {
+ super(id);
+ }
+
+ @Override
+ public boolean evaluateAsBoolean(Context context) {
+ return value == null ? false : value;
+ }
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTDirective.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTDirective.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTDirective.java
new file mode 100644
index 0000000..67f4f3c
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTDirective.java
@@ -0,0 +1,43 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+import org.apache.cayenne.template.Context;
+import org.apache.cayenne.template.Directive;
+
+/**
+ * @since 4.1
+ */
+public class ASTDirective extends IdentifierNode {
+
+ public ASTDirective(int id) {
+ super(id);
+ }
+
+ @Override
+ public String evaluate(Context context) {
+ Directive directive = context.getDirective(getIdentifier());
+ if(directive == null) {
+ return "";
+ }
+
+ return directive.apply(context, (ASTExpression[]) children);
+ }
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTExpression.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTExpression.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTExpression.java
new file mode 100644
index 0000000..0ade66b
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTExpression.java
@@ -0,0 +1,61 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+import org.apache.cayenne.template.Context;
+
+/**
+ * @since 4.1
+ */
+public class ASTExpression extends SimpleNode implements ExpressionNode {
+
+ public ASTExpression(int id) {
+ super(id);
+ }
+
+ protected ExpressionNode getChildAsExpressionNode(int child) {
+ return (ExpressionNode)jjtGetChild(child);
+ }
+
+ @Override
+ public String evaluate(Context context) {
+ return jjtGetChild(0).evaluate(context);
+ }
+
+ @Override
+ public Object evaluateAsObject(Context context) {
+ return getChildAsExpressionNode(0).evaluateAsLong(context);
+ }
+
+ @Override
+ public long evaluateAsLong(Context context) {
+ return getChildAsExpressionNode(0).evaluateAsLong(context);
+ }
+
+ @Override
+ public double evaluateAsDouble(Context context) {
+ return getChildAsExpressionNode(0).evaluateAsDouble(context);
+ }
+
+ @Override
+ public boolean evaluateAsBoolean(Context context) {
+ return getChildAsExpressionNode(0).evaluateAsBoolean(context);
+ }
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTFloatScalar.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTFloatScalar.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTFloatScalar.java
new file mode 100644
index 0000000..a46db69
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTFloatScalar.java
@@ -0,0 +1,43 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+import org.apache.cayenne.template.Context;
+
+/**
+ * @since 4.1
+ */
+public class ASTFloatScalar extends ScalarNode<Double> {
+
+ public ASTFloatScalar(int id) {
+ super(id);
+ }
+
+ @Override
+ public boolean evaluateAsBoolean(Context context) {
+ return value != null && value > 0;
+ }
+
+ @Override
+ public double evaluateAsDouble(Context context) {
+ return value;
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTIfElse.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTIfElse.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTIfElse.java
new file mode 100644
index 0000000..d117777
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTIfElse.java
@@ -0,0 +1,46 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+import org.apache.cayenne.template.Context;
+
+/**
+ * @since 4.1
+ */
+public class ASTIfElse extends SimpleNode {
+
+ public ASTIfElse(int id) {
+ super(id);
+ }
+
+ @Override
+ public String evaluate(Context context) {
+ ASTExpression condition = (ASTExpression)jjtGetChild(0);
+ if (condition.evaluateAsBoolean(context)) {
+ return jjtGetChild(1).evaluate(context);
+ } else {
+ // else is optional
+ if(jjtGetNumChildren() > 2) {
+ return jjtGetChild(2).evaluate(context);
+ }
+ return "";
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTIntScalar.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTIntScalar.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTIntScalar.java
new file mode 100644
index 0000000..efd3c47
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTIntScalar.java
@@ -0,0 +1,48 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+import org.apache.cayenne.template.Context;
+
+/**
+ * @since 4.1
+ */
+public class ASTIntScalar extends ScalarNode<Long> {
+
+ public ASTIntScalar(int id) {
+ super(id);
+ }
+
+ @Override
+ public boolean evaluateAsBoolean(Context context) {
+ return value != null && value > 0;
+ }
+
+ @Override
+ public long evaluateAsLong(Context context) {
+ return value;
+ }
+
+ @Override
+ public double evaluateAsDouble(Context context) {
+ return value;
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTMethod.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTMethod.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTMethod.java
new file mode 100644
index 0000000..50961c6
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTMethod.java
@@ -0,0 +1,100 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+import java.lang.reflect.Method;
+import java.util.Objects;
+
+import org.apache.cayenne.reflect.PropertyUtils;
+import org.apache.cayenne.template.Context;
+
+/**
+ * @since 4.1
+ */
+public class ASTMethod extends IdentifierNode {
+
+ protected Object parentObject;
+
+ public ASTMethod(int id) {
+ super(id);
+ }
+
+ protected void setParentObject(Object parentObject) {
+ this.parentObject = Objects.requireNonNull(parentObject);
+ }
+
+ /**
+ * Evaluate method call to an Object
+ */
+ public Object evaluateAsObject(Context context) {
+ if(parentObject == null) {
+ throw new IllegalStateException("To evaluate method node parent object should be set.");
+ }
+
+ try {
+ // first try default property resolution
+ return PropertyUtils.getProperty(parentObject, getIdentifier());
+ } catch (IllegalArgumentException ex) {
+ // if it fails, try direct method call
+ methodsLoop:
+ for(Method m : parentObject.getClass().getMethods()) {
+ if(m.getName().equals(getIdentifier())) {
+ // check count of arguments
+ if(m.getParameterTypes().length != jjtGetNumChildren()) {
+ continue;
+ }
+ int i = 0;
+ Object[] arguments = new Object[jjtGetNumChildren()];
+ for(Class<?> parameterType : m.getParameterTypes()) {
+ ASTExpression child = (ASTExpression)jjtGetChild(i);
+ if(parameterType.isAssignableFrom(Double.class)) {
+ arguments[i] = child.evaluateAsDouble(context);
+ } else if(parameterType.isAssignableFrom(Long.class)) {
+ arguments[i] = child.evaluateAsLong(context);
+ } else if(parameterType.isAssignableFrom(Boolean.class)) {
+ arguments[i] = child.evaluateAsBoolean(context);
+ } else if(parameterType.isAssignableFrom(String.class)) {
+ arguments[i] = child.evaluate(context);
+ } else {
+ continue methodsLoop;
+ }
+ i++;
+ }
+
+ try {
+ return m.invoke(parentObject, arguments);
+ } catch (Exception ignored) {
+ // continue
+ }
+ }
+ }
+ }
+
+ throw new IllegalArgumentException("Unable to resolve method " + getIdentifier() +
+ " with " + jjtGetNumChildren() + " args for object " + parentObject);
+ }
+
+ @Override
+ public String evaluate(Context context) {
+ Object object = evaluateAsObject(context);
+ return object == null ? "" : object.toString();
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTStringScalar.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTStringScalar.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTStringScalar.java
new file mode 100644
index 0000000..b955f83
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTStringScalar.java
@@ -0,0 +1,32 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+/**
+ * @since 4.1
+ */
+public class ASTStringScalar extends ScalarNode<String> {
+
+ public ASTStringScalar(int id) {
+ super(id);
+ }
+
+}
+
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTText.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTText.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTText.java
new file mode 100644
index 0000000..ead03cc
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTText.java
@@ -0,0 +1,31 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+/**
+ * @since 4.1
+ */
+public class ASTText extends ScalarNode<String> {
+
+ public ASTText(int id) {
+ super(id);
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTVariable.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTVariable.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTVariable.java
new file mode 100644
index 0000000..b72d59b
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ASTVariable.java
@@ -0,0 +1,73 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+import java.util.Objects;
+
+import org.apache.cayenne.template.Context;
+
+/**
+ * @since 4.1
+ */
+public class ASTVariable extends IdentifierNode implements ExpressionNode {
+
+ public ASTVariable(int id) {
+ super(id);
+ }
+
+ public Object evaluateAsObject(Context context) {
+ Object object = context.getObject(getIdentifier());
+ if(object == null) {
+ return null;
+ }
+ for(int i=0; i<jjtGetNumChildren(); i++) {
+ ASTMethod method = (ASTMethod)jjtGetChild(i);
+ method.setParentObject(object);
+ object = method.evaluateAsObject(context);
+ if(object == null) {
+ return null;
+ }
+ }
+ return object;
+ }
+
+ @Override
+ public String evaluate(Context context) {
+ Object object = evaluateAsObject(context);
+ return object == null ? "" : object.toString();
+ }
+
+ @Override
+ public long evaluateAsLong(Context context) {
+ Number object = (Number) Objects.requireNonNull(evaluateAsObject(context));
+ return object.longValue();
+ }
+
+ @Override
+ public double evaluateAsDouble(Context context) {
+ Number object = (Number) Objects.requireNonNull(evaluateAsObject(context));
+ return object.doubleValue();
+ }
+
+ @Override
+ public boolean evaluateAsBoolean(Context context) {
+ return (Boolean) Objects.requireNonNull(evaluateAsObject(context));
+ }
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ExpressionNode.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ExpressionNode.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ExpressionNode.java
new file mode 100644
index 0000000..735badf
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ExpressionNode.java
@@ -0,0 +1,37 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+import org.apache.cayenne.template.Context;
+
+/**
+ * @since 4.1
+ */
+public interface ExpressionNode {
+
+ Object evaluateAsObject(Context context);
+
+ long evaluateAsLong(Context context);
+
+ double evaluateAsDouble(Context context);
+
+ boolean evaluateAsBoolean(Context context);
+
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/JJTSQLTemplateParserState.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/JJTSQLTemplateParserState.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/JJTSQLTemplateParserState.java
new file mode 100644
index 0000000..955cfcb
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/JJTSQLTemplateParserState.java
@@ -0,0 +1,123 @@
+/* Generated By:JavaCC: Do not edit this line. JJTSQLTemplateParserState.java Version 5.0 */
+package org.apache.cayenne.template.parser;
+
+public class JJTSQLTemplateParserState {
+ private java.util.List<Node> nodes;
+ private java.util.List<Integer> marks;
+
+ private int sp; // number of nodes on stack
+ private int mk; // current mark
+ private boolean node_created;
+
+ public JJTSQLTemplateParserState() {
+ nodes = new java.util.ArrayList<Node>();
+ marks = new java.util.ArrayList<Integer>();
+ sp = 0;
+ mk = 0;
+ }
+
+ /* Determines whether the current node was actually closed and
+ pushed. This should only be called in the final user action of a
+ node scope. */
+ public boolean nodeCreated() {
+ return node_created;
+ }
+
+ /* Call this to reinitialize the node stack. It is called
+ automatically by the parser's ReInit() method. */
+ public void reset() {
+ nodes.clear();
+ marks.clear();
+ sp = 0;
+ mk = 0;
+ }
+
+ /* Returns the root node of the AST. It only makes sense to call
+ this after a successful parse. */
+ public Node rootNode() {
+ return nodes.get(0);
+ }
+
+ /* Pushes a node on to the stack. */
+ public void pushNode(Node n) {
+ nodes.add(n);
+ ++sp;
+ }
+
+ /* Returns the node on the top of the stack, and remove it from the
+ stack. */
+ public Node popNode() {
+ if (--sp < mk) {
+ mk = marks.remove(marks.size()-1);
+ }
+ return nodes.remove(nodes.size()-1);
+ }
+
+ /* Returns the node currently on the top of the stack. */
+ public Node peekNode() {
+ return nodes.get(nodes.size()-1);
+ }
+
+ /* Returns the number of children on the stack in the current node
+ scope. */
+ public int nodeArity() {
+ return sp - mk;
+ }
+
+
+ public void clearNodeScope(Node n) {
+ while (sp > mk) {
+ popNode();
+ }
+ mk = marks.remove(marks.size()-1);
+ }
+
+
+ public void openNodeScope(Node n) {
+ marks.add(mk);
+ mk = sp;
+ n.jjtOpen();
+ }
+
+
+ /* A definite node is constructed from a specified number of
+ children. That number of nodes are popped from the stack and
+ made the children of the definite node. Then the definite node
+ is pushed on to the stack. */
+ public void closeNodeScope(Node n, int num) {
+ mk = marks.remove(marks.size()-1);
+ while (num-- > 0) {
+ Node c = popNode();
+ c.jjtSetParent(n);
+ n.jjtAddChild(c, num);
+ }
+ n.jjtClose();
+ pushNode(n);
+ node_created = true;
+ }
+
+
+ /* A conditional node is constructed if its condition is true. All
+ the nodes that have been pushed since the node was opened are
+ made children of the conditional node, which is then pushed
+ on to the stack. If the condition is false the node is not
+ constructed and they are left on the stack. */
+ public void closeNodeScope(Node n, boolean condition) {
+ if (condition) {
+ int a = nodeArity();
+ mk = marks.remove(marks.size()-1);
+ while (a-- > 0) {
+ Node c = popNode();
+ c.jjtSetParent(n);
+ n.jjtAddChild(c, a);
+ }
+ n.jjtClose();
+ pushNode(n);
+ node_created = true;
+ } else {
+ mk = marks.remove(marks.size()-1);
+ node_created = false;
+ }
+ }
+}
+/* JavaCC - OriginalChecksum=1706cef4cf4b627318940a448e5ee9ea (do not edit this line) */
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/JavaCharStream.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/JavaCharStream.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/JavaCharStream.java
new file mode 100644
index 0000000..535ed3b
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/JavaCharStream.java
@@ -0,0 +1,610 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+/**
+ * An implementation of interface CharStream, where the stream is assumed to
+ * contain only ASCII characters (with java-like unicode escape processing).
+ *
+ * @since 4.1
+ */
+public class JavaCharStream {
+
+ /**
+ * Whether parser is static.
+ */
+ public static final boolean staticFlag = false;
+
+ static int hexval(char c) throws java.io.IOException {
+ switch (c) {
+ case '0':
+ return 0;
+ case '1':
+ return 1;
+ case '2':
+ return 2;
+ case '3':
+ return 3;
+ case '4':
+ return 4;
+ case '5':
+ return 5;
+ case '6':
+ return 6;
+ case '7':
+ return 7;
+ case '8':
+ return 8;
+ case '9':
+ return 9;
+
+ case 'a':
+ case 'A':
+ return 10;
+ case 'b':
+ case 'B':
+ return 11;
+ case 'c':
+ case 'C':
+ return 12;
+ case 'd':
+ case 'D':
+ return 13;
+ case 'e':
+ case 'E':
+ return 14;
+ case 'f':
+ case 'F':
+ return 15;
+ }
+
+ throw new java.io.IOException(); // Should never come here
+ }
+
+ /**
+ * Position in buffer.
+ */
+ public int bufpos = -1;
+ int bufsize;
+ int available;
+ int tokenBegin;
+ protected int bufline[];
+ protected int bufcolumn[];
+
+ protected int column = 0;
+ protected int line = 1;
+
+ protected boolean prevCharIsCR = false;
+ protected boolean prevCharIsLF = false;
+
+ protected java.io.Reader inputStream;
+
+ protected char[] nextCharBuf;
+ protected char[] buffer;
+ protected int maxNextCharInd = 0;
+ protected int nextCharInd = -1;
+ protected int inBuf = 0;
+ protected int tabSize = 8;
+
+ protected void setTabSize(int i) {
+ tabSize = i;
+ }
+
+ protected int getTabSize(int i) {
+ return tabSize;
+ }
+
+ protected void ExpandBuff(boolean wrapAround) {
+ char[] newbuffer = new char[bufsize + 2048];
+ int newbufline[] = new int[bufsize + 2048];
+ int newbufcolumn[] = new int[bufsize + 2048];
+
+ try {
+ if (wrapAround) {
+ System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
+ System.arraycopy(buffer, 0, newbuffer, bufsize - tokenBegin, bufpos);
+ buffer = newbuffer;
+
+ System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
+ System.arraycopy(bufline, 0, newbufline, bufsize - tokenBegin, bufpos);
+ bufline = newbufline;
+
+ System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
+ System.arraycopy(bufcolumn, 0, newbufcolumn, bufsize - tokenBegin, bufpos);
+ bufcolumn = newbufcolumn;
+
+ bufpos += (bufsize - tokenBegin);
+ } else {
+ System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
+ buffer = newbuffer;
+
+ System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
+ bufline = newbufline;
+
+ System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
+ bufcolumn = newbufcolumn;
+
+ bufpos -= tokenBegin;
+ }
+ } catch (Throwable t) {
+ throw new Error(t.getMessage());
+ }
+
+ available = (bufsize += 2048);
+ tokenBegin = 0;
+ }
+
+ protected void FillBuff() throws java.io.IOException {
+ int i;
+ if (maxNextCharInd == 4096)
+ maxNextCharInd = nextCharInd = 0;
+
+ try {
+ if ((i = inputStream.read(nextCharBuf, maxNextCharInd,
+ 4096 - maxNextCharInd)) == -1) {
+ inputStream.close();
+ throw new java.io.IOException();
+ } else
+ maxNextCharInd += i;
+ } catch (java.io.IOException e) {
+ if (bufpos != 0) {
+ --bufpos;
+ backup(0);
+ } else {
+ bufline[bufpos] = line;
+ bufcolumn[bufpos] = column;
+ }
+ throw e;
+ }
+ }
+
+ protected char ReadByte() throws java.io.IOException {
+ if (++nextCharInd >= maxNextCharInd)
+ FillBuff();
+
+ return nextCharBuf[nextCharInd];
+ }
+
+ /**
+ * @return starting character for token.
+ */
+ public char BeginToken() throws java.io.IOException {
+ if (inBuf > 0) {
+ --inBuf;
+
+ if (++bufpos == bufsize)
+ bufpos = 0;
+
+ tokenBegin = bufpos;
+ return buffer[bufpos];
+ }
+
+ tokenBegin = 0;
+ bufpos = -1;
+
+ return readChar();
+ }
+
+ protected void AdjustBuffSize() {
+ if (available == bufsize) {
+ if (tokenBegin > 2048) {
+ bufpos = 0;
+ available = tokenBegin;
+ } else
+ ExpandBuff(false);
+ } else if (available > tokenBegin)
+ available = bufsize;
+ else if ((tokenBegin - available) < 2048)
+ ExpandBuff(true);
+ else
+ available = tokenBegin;
+ }
+
+ protected void UpdateLineColumn(char c) {
+ column++;
+
+ if (prevCharIsLF) {
+ prevCharIsLF = false;
+ line += (column = 1);
+ } else if (prevCharIsCR) {
+ prevCharIsCR = false;
+ if (c == '\n') {
+ prevCharIsLF = true;
+ } else
+ line += (column = 1);
+ }
+
+ switch (c) {
+ case '\r':
+ prevCharIsCR = true;
+ break;
+ case '\n':
+ prevCharIsLF = true;
+ break;
+ case '\t':
+ column--;
+ column += (tabSize - (column % tabSize));
+ break;
+ default:
+ break;
+ }
+
+ bufline[bufpos] = line;
+ bufcolumn[bufpos] = column;
+ }
+
+ /**
+ * Read a character.
+ */
+ public char readChar() throws java.io.IOException {
+ if (inBuf > 0) {
+ --inBuf;
+
+ if (++bufpos == bufsize)
+ bufpos = 0;
+
+ return buffer[bufpos];
+ }
+
+ char c;
+
+ if (++bufpos == available)
+ AdjustBuffSize();
+
+ if ((buffer[bufpos] = c = ReadByte()) == '\\') {
+ UpdateLineColumn(c);
+
+ int backSlashCnt = 1;
+
+ for (; ; ) // Read all the backslashes
+ {
+ if (++bufpos == available)
+ AdjustBuffSize();
+
+ try {
+ if ((buffer[bufpos] = c = ReadByte()) != '\\') {
+ UpdateLineColumn(c);
+ // found a non-backslash char.
+ if ((c == 'u') && ((backSlashCnt & 1) == 1)) {
+ if (--bufpos < 0)
+ bufpos = bufsize - 1;
+
+ break;
+ }
+
+ backup(backSlashCnt);
+ return '\\';
+ }
+ } catch (java.io.IOException e) {
+ // We are returning one backslash so we should only backup (count-1)
+ if (backSlashCnt > 1)
+ backup(backSlashCnt - 1);
+
+ return '\\';
+ }
+
+ UpdateLineColumn(c);
+ backSlashCnt++;
+ }
+
+ // Here, we have seen an odd number of backslash's followed by a 'u'
+ try {
+ while ((c = ReadByte()) == 'u')
+ ++column;
+
+ buffer[bufpos] = c = (char) (hexval(c) << 12 |
+ hexval(ReadByte()) << 8 |
+ hexval(ReadByte()) << 4 |
+ hexval(ReadByte()));
+
+ column += 4;
+ } catch (java.io.IOException e) {
+ throw new Error("Invalid escape character at line " + line +
+ " column " + column + ".");
+ }
+
+ if (backSlashCnt == 1)
+ return c;
+ else {
+ backup(backSlashCnt - 1);
+ return '\\';
+ }
+ } else {
+ UpdateLineColumn(c);
+ return c;
+ }
+ }
+
+ /**
+ * Get end column.
+ */
+ public int getEndColumn() {
+ return bufcolumn[bufpos];
+ }
+
+ /**
+ * Get end line.
+ */
+ public int getEndLine() {
+ return bufline[bufpos];
+ }
+
+ /**
+ * @return column of token start
+ */
+ public int getBeginColumn() {
+ return bufcolumn[tokenBegin];
+ }
+
+ /**
+ * @return line number of token start
+ */
+ public int getBeginLine() {
+ return bufline[tokenBegin];
+ }
+
+ /**
+ * Retreat.
+ */
+ public void backup(int amount) {
+
+ inBuf += amount;
+ if ((bufpos -= amount) < 0)
+ bufpos += bufsize;
+ }
+
+ /**
+ * Constructor.
+ */
+ public JavaCharStream(java.io.Reader dstream,
+ int startline, int startcolumn, int buffersize) {
+ inputStream = dstream;
+ line = startline;
+ column = startcolumn - 1;
+
+ available = bufsize = buffersize;
+ buffer = new char[buffersize];
+ bufline = new int[buffersize];
+ bufcolumn = new int[buffersize];
+ nextCharBuf = new char[4096];
+ }
+
+ /**
+ * Constructor.
+ */
+ public JavaCharStream(java.io.Reader dstream,
+ int startline, int startcolumn) {
+ this(dstream, startline, startcolumn, 4096);
+ }
+
+ /**
+ * Constructor.
+ */
+ public JavaCharStream(java.io.Reader dstream) {
+ this(dstream, 1, 1, 4096);
+ }
+
+ /**
+ * Reinitialise.
+ */
+ public void ReInit(java.io.Reader dstream,
+ int startline, int startcolumn, int buffersize) {
+ inputStream = dstream;
+ line = startline;
+ column = startcolumn - 1;
+
+ if (buffer == null || buffersize != buffer.length) {
+ available = bufsize = buffersize;
+ buffer = new char[buffersize];
+ bufline = new int[buffersize];
+ bufcolumn = new int[buffersize];
+ nextCharBuf = new char[4096];
+ }
+ prevCharIsLF = prevCharIsCR = false;
+ tokenBegin = inBuf = maxNextCharInd = 0;
+ nextCharInd = bufpos = -1;
+ }
+
+ /**
+ * Reinitialise.
+ */
+ public void ReInit(java.io.Reader dstream,
+ int startline, int startcolumn) {
+ ReInit(dstream, startline, startcolumn, 4096);
+ }
+
+ /**
+ * Reinitialise.
+ */
+ public void ReInit(java.io.Reader dstream) {
+ ReInit(dstream, 1, 1, 4096);
+ }
+
+ /**
+ * Constructor.
+ */
+ public JavaCharStream(java.io.InputStream dstream, String encoding, int startline,
+ int startcolumn, int buffersize) throws java.io.UnsupportedEncodingException {
+ this(encoding == null ? new java.io.InputStreamReader(dstream) : new java.io.InputStreamReader(dstream, encoding), startline, startcolumn, buffersize);
+ }
+
+ /**
+ * Constructor.
+ */
+ public JavaCharStream(java.io.InputStream dstream, int startline,
+ int startcolumn, int buffersize) {
+ this(new java.io.InputStreamReader(dstream), startline, startcolumn, 4096);
+ }
+
+ /**
+ * Constructor.
+ */
+ public JavaCharStream(java.io.InputStream dstream, String encoding, int startline,
+ int startcolumn) throws java.io.UnsupportedEncodingException {
+ this(dstream, encoding, startline, startcolumn, 4096);
+ }
+
+ /**
+ * Constructor.
+ */
+ public JavaCharStream(java.io.InputStream dstream, int startline,
+ int startcolumn) {
+ this(dstream, startline, startcolumn, 4096);
+ }
+
+ /**
+ * Constructor.
+ */
+ public JavaCharStream(java.io.InputStream dstream, String encoding) throws java.io.UnsupportedEncodingException {
+ this(dstream, encoding, 1, 1, 4096);
+ }
+
+ /**
+ * Constructor.
+ */
+ public JavaCharStream(java.io.InputStream dstream) {
+ this(dstream, 1, 1, 4096);
+ }
+
+ /**
+ * Reinitialise.
+ */
+ public void ReInit(java.io.InputStream dstream, String encoding, int startline,
+ int startcolumn, int buffersize) throws java.io.UnsupportedEncodingException {
+ ReInit(encoding == null ? new java.io.InputStreamReader(dstream) : new java.io.InputStreamReader(dstream, encoding), startline, startcolumn, buffersize);
+ }
+
+ /**
+ * Reinitialise.
+ */
+ public void ReInit(java.io.InputStream dstream, int startline,
+ int startcolumn, int buffersize) {
+ ReInit(new java.io.InputStreamReader(dstream), startline, startcolumn, buffersize);
+ }
+
+ /**
+ * Reinitialise.
+ */
+ public void ReInit(java.io.InputStream dstream, String encoding, int startline,
+ int startcolumn) throws java.io.UnsupportedEncodingException {
+ ReInit(dstream, encoding, startline, startcolumn, 4096);
+ }
+
+ /**
+ * Reinitialise.
+ */
+ public void ReInit(java.io.InputStream dstream, int startline,
+ int startcolumn) {
+ ReInit(dstream, startline, startcolumn, 4096);
+ }
+
+ /**
+ * Reinitialise.
+ */
+ public void ReInit(java.io.InputStream dstream, String encoding) throws java.io.UnsupportedEncodingException {
+ ReInit(dstream, encoding, 1, 1, 4096);
+ }
+
+ /**
+ * Reinitialise.
+ */
+ public void ReInit(java.io.InputStream dstream) {
+ ReInit(dstream, 1, 1, 4096);
+ }
+
+ /**
+ * @return token image as String
+ */
+ public String GetImage() {
+ if (bufpos >= tokenBegin)
+ return new String(buffer, tokenBegin, bufpos - tokenBegin + 1);
+ else
+ return new String(buffer, tokenBegin, bufsize - tokenBegin) +
+ new String(buffer, 0, bufpos + 1);
+ }
+
+ /**
+ * @return suffix
+ */
+ public char[] GetSuffix(int len) {
+ char[] ret = new char[len];
+
+ if ((bufpos + 1) >= len)
+ System.arraycopy(buffer, bufpos - len + 1, ret, 0, len);
+ else {
+ System.arraycopy(buffer, bufsize - (len - bufpos - 1), ret, 0,
+ len - bufpos - 1);
+ System.arraycopy(buffer, 0, ret, len - bufpos - 1, bufpos + 1);
+ }
+
+ return ret;
+ }
+
+ /**
+ * Set buffers back to null when finished.
+ */
+ public void Done() {
+ nextCharBuf = null;
+ buffer = null;
+ bufline = null;
+ bufcolumn = null;
+ }
+
+ /**
+ * Method to adjust line and column numbers for the start of a token.
+ */
+ public void adjustBeginLineColumn(int newLine, int newCol) {
+ int start = tokenBegin;
+ int len;
+
+ if (bufpos >= tokenBegin) {
+ len = bufpos - tokenBegin + inBuf + 1;
+ } else {
+ len = bufsize - tokenBegin + bufpos + 1 + inBuf;
+ }
+
+ int i = 0, j = 0, k = 0;
+ int nextColDiff = 0, columnDiff = 0;
+
+ while (i < len && bufline[j = start % bufsize] == bufline[k = ++start % bufsize]) {
+ bufline[j] = newLine;
+ nextColDiff = columnDiff + bufcolumn[k] - bufcolumn[j];
+ bufcolumn[j] = newCol + columnDiff;
+ columnDiff = nextColDiff;
+ i++;
+ }
+
+ if (i < len) {
+ bufline[j] = newLine++;
+ bufcolumn[j] = newCol + columnDiff;
+
+ while (i++ < len) {
+ if (bufline[j = start % bufsize] != bufline[++start % bufsize])
+ bufline[j] = newLine++;
+ else
+ bufline[j] = newLine;
+ }
+ }
+
+ line = bufline[j];
+ column = bufcolumn[j];
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/Node.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/Node.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/Node.java
new file mode 100644
index 0000000..15d5b1a
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/Node.java
@@ -0,0 +1,70 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+import org.apache.cayenne.template.Context;
+
+/**
+ * All AST nodes must implement this interface. It provides basic
+ * machinery for constructing the parent and child relationships
+ * between nodes.
+ * @since 4.1
+ */
+public interface Node {
+
+ /**
+ * This method is called after the node has been made the current
+ * node. It indicates that child nodes can now be added to it.
+ */
+ void jjtOpen();
+
+ /**
+ * This method is called after all the child nodes have been
+ * added.
+ */
+ void jjtClose();
+
+ /**
+ * This pair of methods are used to inform the node of its
+ * parent.
+ */
+ void jjtSetParent(Node n);
+
+ Node jjtGetParent();
+
+ /**
+ * This method tells the node to add its argument to the node's
+ * list of children.
+ */
+ void jjtAddChild(Node n, int i);
+
+ /**
+ * This method returns a child node. The children are numbered
+ * from zero, left to right.
+ */
+ Node jjtGetChild(int i);
+
+ /**
+ * Return the number of children the node has.
+ */
+ int jjtGetNumChildren();
+
+ String evaluate(Context context);
+}
http://git-wip-us.apache.org/repos/asf/cayenne/blob/55e3c975/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ParseException.java
----------------------------------------------------------------------
diff --git a/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ParseException.java b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ParseException.java
new file mode 100644
index 0000000..a838ddd
--- /dev/null
+++ b/cayenne-server/src/main/java/org/apache/cayenne/template/parser/ParseException.java
@@ -0,0 +1,192 @@
+/*****************************************************************
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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 org.apache.cayenne.template.parser;
+
+/**
+ * This exception is thrown when parse errors are encountered.
+ * You can explicitly create objects of this exception type by
+ * calling the method generateParseException in the generated
+ * parser.
+ * <p>
+ * You can modify this class to customize your error reporting
+ * mechanisms so long as you retain the public fields.
+ *
+ * @since 4.1
+ */
+public class ParseException extends Exception {
+
+ /**
+ * The version identifier for this Serializable class.
+ * Increment only if the <i>serialized</i> form of the
+ * class changes.
+ */
+ private static final long serialVersionUID = 1L;
+
+ /**
+ * This is the last token that has been consumed successfully. If
+ * this object has been created due to a parse error, the token
+ * following this token will (therefore) be the first error token.
+ */
+ public Token currentToken;
+
+ /**
+ * Each entry in this array is an array of integers. Each array
+ * of integers represents a sequence of tokens (by their ordinal
+ * values) that is expected at this point of the parse.
+ */
+ public int[][] expectedTokenSequences;
+
+ /**
+ * This is a reference to the "tokenImage" array of the generated
+ * parser within which the parse error occurred. This array is
+ * defined in the generated ...Constants interface.
+ */
+ public String[] tokenImage;
+
+ /**
+ * This constructor is used by the method "generateParseException"
+ * in the generated parser. Calling this constructor generates
+ * a new object of this type with the fields "currentToken",
+ * "expectedTokenSequences", and "tokenImage" set.
+ */
+ public ParseException(Token currentTokenVal, int[][] expectedTokenSequencesVal, String[] tokenImageVal) {
+ super(initialise(currentTokenVal, expectedTokenSequencesVal, tokenImageVal));
+ currentToken = currentTokenVal;
+ expectedTokenSequences = expectedTokenSequencesVal;
+ tokenImage = tokenImageVal;
+ }
+
+ /**
+ * The following constructors are for use by you for whatever
+ * purpose you can think of. Constructing the exception in this
+ * manner makes the exception behave in the normal way - i.e., as
+ * documented in the class "Throwable". The fields "errorToken",
+ * "expectedTokenSequences", and "tokenImage" do not contain
+ * relevant information. The JavaCC generated code does not use
+ * these constructors.
+ */
+
+ public ParseException() {
+ super();
+ }
+
+ /**
+ * Constructor with message.
+ */
+ public ParseException(String message) {
+ super(message);
+ }
+
+ /**
+ * It uses "currentToken" and "expectedTokenSequences" to generate a parse
+ * error message and returns it. If this object has been created
+ * due to a parse error, and you do not catch it (it gets thrown
+ * from the parser) the correct error message
+ * gets displayed.
+ */
+ private static String initialise(Token currentToken, int[][] expectedTokenSequences, String[] tokenImage) {
+ String eol = System.getProperty("line.separator", "\n");
+ StringBuilder expected = new StringBuilder();
+ int maxSize = 0;
+ for (int[] expectedTokenSequence : expectedTokenSequences) {
+ if (maxSize < expectedTokenSequence.length) {
+ maxSize = expectedTokenSequence.length;
+ }
+ for (int anExpectedTokenSequence : expectedTokenSequence) {
+ expected.append(tokenImage[anExpectedTokenSequence]).append(' ');
+ }
+ if (expectedTokenSequence[expectedTokenSequence.length - 1] != 0) {
+ expected.append("...");
+ }
+ expected.append(eol).append(" ");
+ }
+ StringBuilder retval = new StringBuilder("Encountered \"");
+ Token tok = currentToken.next;
+ for (int i = 0; i < maxSize; i++) {
+ if (i != 0) retval.append(" ");
+ if (tok.kind == 0) {
+ retval.append(tokenImage[0]);
+ break;
+ }
+ retval.append(" ").append(tokenImage[tok.kind]);
+ retval.append(" \"");
+ retval.append(add_escapes(tok.image));
+ retval.append(" \"");
+ tok = tok.next;
+ }
+ retval.append("\" at line ").append(currentToken.next.beginLine).append(", column ").append(currentToken.next.beginColumn);
+ retval.append(".").append(eol);
+ if (expectedTokenSequences.length == 1) {
+ retval.append("Was expecting:").append(eol).append(" ");
+ } else {
+ retval.append("Was expecting one of:").append(eol).append(" ");
+ }
+ retval.append(expected.toString());
+ return retval.toString();
+ }
+
+ /**
+ * Used to convert raw characters to their escaped version
+ * when these raw version cannot be used as part of an ASCII
+ * string literal.
+ */
+ static String add_escapes(String str) {
+ StringBuilder retval = new StringBuilder();
+ char ch;
+ for (int i = 0; i < str.length(); i++) {
+ switch (str.charAt(i)) {
+ case 0:
+ continue;
+ case '\b':
+ retval.append("\\b");
+ continue;
+ case '\t':
+ retval.append("\\t");
+ continue;
+ case '\n':
+ retval.append("\\n");
+ continue;
+ case '\f':
+ retval.append("\\f");
+ continue;
+ case '\r':
+ retval.append("\\r");
+ continue;
+ case '\"':
+ retval.append("\\\"");
+ continue;
+ case '\'':
+ retval.append("\\\'");
+ continue;
+ case '\\':
+ retval.append("\\\\");
+ continue;
+ default:
+ if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
+ String s = "0000" + Integer.toString(ch, 16);
+ retval.append("\\u").append(s.substring(s.length() - 4, s.length()));
+ } else {
+ retval.append(ch);
+ }
+ }
+ }
+ return retval.toString();
+ }
+}