org.apache.struts2.views.jsp.ui.OgnlTool Maven / Gradle / Ivy
/*
* 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.struts2.views.jsp.ui;
import ognl.Ognl;
import ognl.OgnlException;
import com.opensymphony.xwork2.inject.Inject;
import com.opensymphony.xwork2.ognl.OgnlUtil;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
/**
* FIXME: remove?
*/
public class OgnlTool {
private static final Logger LOG = LogManager.getLogger(OgnlTool.class);
private OgnlUtil ognlUtil;
public OgnlTool() {
}
@Inject
public void setOgnlUtil(OgnlUtil ognlUtil) {
this.ognlUtil = ognlUtil;
}
public Object findValue(String expr, Object context) {
try {
return Ognl.getValue(ognlUtil.compile(expr), context);
} catch (OgnlException e) {
if (e.getReason() instanceof SecurityException) {
LOG.warn("Could not evaluate this expression due to security constraints: [{}]", expr, e);
}
return null;
}
}
}