128 lines
4.2 KiB
Java
128 lines
4.2 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.jasper.el;
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import java.util.Iterator;
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import java.util.Objects;
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import javax.el.ELContext;
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import javax.el.ELException;
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import javax.el.ELResolver;
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import javax.el.ExpressionFactory;
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import javax.el.PropertyNotWritableException;
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import javax.servlet.jsp.el.VariableResolver;
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@Deprecated
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public final class ELResolverImpl extends ELResolver {
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private final VariableResolver variableResolver;
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private final ELResolver elResolver;
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public ELResolverImpl(VariableResolver variableResolver,
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ExpressionFactory factory) {
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this.variableResolver = variableResolver;
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this.elResolver = ELContextImpl.getDefaultResolver(factory);
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}
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@Override
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public Object getValue(ELContext context, Object base, Object property) {
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Objects.requireNonNull(context);
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if (base == null) {
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context.setPropertyResolved(base, property);
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if (property != null) {
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try {
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return this.variableResolver.resolveVariable(property
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.toString());
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} catch (javax.servlet.jsp.el.ELException e) {
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throw new ELException(e.getMessage(), e.getCause());
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}
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}
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}
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if (!context.isPropertyResolved()) {
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return elResolver.getValue(context, base, property);
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}
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return null;
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}
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@Override
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public Class<?> getType(ELContext context, Object base, Object property) {
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Objects.requireNonNull(context);
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if (base == null) {
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context.setPropertyResolved(base, property);
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if (property != null) {
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try {
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Object obj = this.variableResolver.resolveVariable(property
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.toString());
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return (obj != null) ? obj.getClass() : null;
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} catch (javax.servlet.jsp.el.ELException e) {
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throw new ELException(e.getMessage(), e.getCause());
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}
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}
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}
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if (!context.isPropertyResolved()) {
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return elResolver.getType(context, base, property);
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}
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return null;
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}
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@Override
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public void setValue(ELContext context, Object base, Object property,
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Object value) {
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Objects.requireNonNull(context);
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if (base == null) {
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context.setPropertyResolved(base, property);
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throw new PropertyNotWritableException(
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"Legacy VariableResolver wrapped, not writable");
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}
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if (!context.isPropertyResolved()) {
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elResolver.setValue(context, base, property, value);
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}
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}
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@Override
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public boolean isReadOnly(ELContext context, Object base, Object property) {
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Objects.requireNonNull(context);
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if (base == null) {
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context.setPropertyResolved(base, property);
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return true;
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}
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return elResolver.isReadOnly(context, base, property);
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}
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@Override
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public Iterator<java.beans.FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base) {
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return elResolver.getFeatureDescriptors(context, base);
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}
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@Override
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public Class<?> getCommonPropertyType(ELContext context, Object base) {
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if (base == null) {
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return String.class;
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}
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return elResolver.getCommonPropertyType(context, base);
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}
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}
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