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java/org/apache/jasper/el/ExpressionEvaluatorImpl.java

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+/*
+ * 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.jasper.el;
+
+import javax.el.ExpressionFactory;
+import javax.el.ValueExpression;
+import javax.servlet.jsp.el.ELException;
+import javax.servlet.jsp.el.ELParseException;
+import javax.servlet.jsp.el.Expression;
+import javax.servlet.jsp.el.ExpressionEvaluator;
+import javax.servlet.jsp.el.FunctionMapper;
+import javax.servlet.jsp.el.VariableResolver;
+
+@Deprecated
+public final class ExpressionEvaluatorImpl extends ExpressionEvaluator {
+
+    private final ExpressionFactory factory;
+
+    public ExpressionEvaluatorImpl(ExpressionFactory factory) {
+        this.factory = factory;
+    }
+
+    @Override
+    public Expression parseExpression(String expression,
+            @SuppressWarnings("rawtypes") Class expectedType,
+            FunctionMapper fMapper) throws ELException {
+        try {
+            ELContextImpl ctx =
+                new ELContextImpl(ELContextImpl.getDefaultResolver(factory));
+            if (fMapper != null) {
+                ctx.setFunctionMapper(new FunctionMapperImpl(fMapper));
+            }
+            ValueExpression ve = this.factory.createValueExpression(ctx, expression, expectedType);
+            return new ExpressionImpl(ve, factory);
+        } catch (javax.el.ELException e) {
+            throw new ELParseException(e.getMessage());
+        }
+    }
+
+    @Override
+    public Object evaluate(String expression,
+            @SuppressWarnings("rawtypes") Class expectedType,
+            VariableResolver vResolver, FunctionMapper fMapper)
+            throws ELException {
+        return this.parseExpression(expression, expectedType, fMapper).evaluate(vResolver);
+    }
+
+}