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add ognl support

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Looly 2023-04-14 01:02:38 +08:00
parent a3ae323d3a
commit 708a7ec334
5 changed files with 137 additions and 0 deletions
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36
hutool-extra/src/main/java/org/dromara/hutool/extra/expression/engine/ognl/OgnlEngine.java Normal file
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@ -0,0 +1,36 @@
/*
* Copyright (c) 2023 looly(loolly@aliyun.com)
* Hutool is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
package org.dromara.hutool.extra.expression.engine.ognl;
import ognl.Ognl;
import ognl.OgnlException;
import org.dromara.hutool.extra.expression.Expression;
import org.dromara.hutool.extra.expression.ExpressionEngine;
import org.dromara.hutool.extra.expression.ExpressionException;
/**
* OGNL(Object-Graph Navigation Language)表达式引擎封装<br>
* 见：https://github.com/orphan-oss/ognl
*
* @author looly
*/
public class OgnlEngine implements ExpressionEngine {
@Override
public Expression compile(final String expression) {
try {
return new OgnlExpression(Ognl.parseExpression(expression));
} catch (final OgnlException e) {
throw new ExpressionException(e);
}
}
}

49
hutool-extra/src/main/java/org/dromara/hutool/extra/expression/engine/ognl/OgnlExpression.java Normal file
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/*
* Copyright (c) 2023 looly(loolly@aliyun.com)
* Hutool is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
package org.dromara.hutool.extra.expression.engine.ognl;
import ognl.Ognl;
import ognl.OgnlContext;
import ognl.OgnlException;
import org.dromara.hutool.core.func.SimpleWrapper;
import org.dromara.hutool.extra.expression.Expression;
import org.dromara.hutool.extra.expression.ExpressionException;
import java.util.Map;
/**
* OGNL表达式包装
*
* @author looly
*/
public class OgnlExpression extends SimpleWrapper<Object> implements Expression {
/**
* 构造
*
* @param expression 表达式对象
*/
public OgnlExpression(final Object expression) {
super(expression);
}
@Override
public Object eval(final Map<String, Object> context) {
final OgnlContext ognlContext = new OgnlContext(context);
try {
return Ognl.getValue(this.raw, ognlContext, ognlContext.getRoot());
} catch (final OgnlException e) {
throw new ExpressionException(e);
}
}
}

19
hutool-extra/src/main/java/org/dromara/hutool/extra/expression/engine/ognl/package-info.java Normal file
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/*
* Copyright (c) 2023 looly(loolly@aliyun.com)
* Hutool is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* OGNL(Object-Graph Navigation Language)表达式引擎封装<br>
* 见：https://github.com/orphan-oss/ognl
*
* @author looly
*/
package org.dromara.hutool.extra.expression.engine.ognl;

1
hutool-extra/src/main/resources/META-INF/services/org.dromara.hutool.extra.expression.ExpressionEngine
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@ -17,3 +17,4 @@ org.dromara.hutool.extra.expression.engine.jfireel.JfireELEngine
org.dromara.hutool.extra.expression.engine.spel.SpELEngine
org.dromara.hutool.extra.expression.engine.rhino.RhinoEngine
org.dromara.hutool.extra.expression.engine.qlexpress.QLExpressEngine
org.dromara.hutool.extra.expression.engine.ognl.OgnlEngine

32
hutool-extra/src/test/java/org/dromara/hutool/extra/expression/OgnlTest.java Normal file
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/*
* Copyright (c) 2023 looly(loolly@aliyun.com)
* Hutool is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
package org.dromara.hutool.extra.expression;
import org.dromara.hutool.core.map.Dict;
import org.dromara.hutool.extra.expression.engine.ognl.OgnlEngine;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
public class OgnlTest {
@Test
void evalTest() {
final ExpressionEngine engine = new OgnlEngine();
final Dict dict = Dict.of()
.set("a", 100.3)
.set("b", 45)
.set("c", -199.100);
final Object eval = engine.eval("#a-(#b-#c)", dict);
Assertions.assertEquals(-143.8, (double)eval, 0);
}
}