mirror of https://github.com/apache/maven.git
o Fixing a NullPointerException in the value extractor if the specified getter
didn't exists. The value extractor will now return null if the getter doesn't exists. o Properly implemented the method caching in the value exctrator. o Changed the RegexBasedModelInterpolator so it would properly handle null values. It used to convert null to "null" and then insert that, now it will leave the expression as is. git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@163696 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
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39a96456cd
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@ -1,7 +1,7 @@
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package org.apache.maven.project.interpolation;
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package org.apache.maven.project.interpolation;
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/* ====================================================================
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/*
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* Copyright 2001-2004 The Apache Software Foundation.
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* Copyright 2001-2005 The Apache Software Foundation.
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*
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* you may not use this file except in compliance with the License.
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@ -14,7 +14,6 @@ package org.apache.maven.project.interpolation;
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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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* See the License for the specific language governing permissions and
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* limitations under the License.
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* limitations under the License.
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* ====================================================================
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*/
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*/
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import org.apache.maven.model.Model;
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import org.apache.maven.model.Model;
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@ -32,12 +31,12 @@ import java.util.regex.Pattern;
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/**
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/**
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* @author jdcasey Created on Feb 3, 2005
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* @author jdcasey Created on Feb 3, 2005
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* @version $Id$
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*/
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*/
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public class RegexBasedModelInterpolator
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public class RegexBasedModelInterpolator
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extends AbstractLogEnabled
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extends AbstractLogEnabled
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implements ModelInterpolator
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implements ModelInterpolator
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{
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{
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private static final Pattern EXPRESSION_PATTERN = Pattern.compile( "\\$\\{(pom|project\\.)?([^}]+)\\}" );
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private static final Pattern EXPRESSION_PATTERN = Pattern.compile( "\\$\\{(pom|project\\.)?([^}]+)\\}" );
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/**
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/**
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@ -89,10 +88,11 @@ public class RegexBasedModelInterpolator
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String wholeExpr = matcher.group( 0 );
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String wholeExpr = matcher.group( 0 );
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String realExpr = matcher.group( 2 );
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String realExpr = matcher.group( 2 );
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String value = null;
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Object value = null;
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try
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try
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{
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{
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value = String.valueOf( ReflectionValueExtractor.evaluate( realExpr, model ) );
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value = ReflectionValueExtractor.evaluate( realExpr, model );
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}
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}
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catch ( Exception e )
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catch ( Exception e )
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{
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{
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@ -105,15 +105,14 @@ public class RegexBasedModelInterpolator
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if ( value != null )
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if ( value != null )
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{
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{
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result = StringUtils.replace( result, wholeExpr, value );
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result = StringUtils.replace( result, wholeExpr, String.valueOf( value ) );
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// could use:
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// could use:
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// result = matcher.replaceFirst( value );
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// result = matcher.replaceFirst( stringValue );
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// but this could result in multiple lookups of value, and replaceAll is not correct behaviour
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// but this could result in multiple lookups of stringValue, and replaceAll is not correct behaviour
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matcher.reset( result );
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matcher.reset( result );
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}
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}
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}
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}
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return result;
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return result;
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}
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}
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}
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}
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@ -1,7 +1,7 @@
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package org.apache.maven.util.introspection;
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package org.apache.maven.util.introspection;
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/* ====================================================================
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/*
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* Copyright 2001-2004 The Apache Software Foundation.
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* Copyright 2001-2005 The Apache Software Foundation.
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*
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* you may not use this file except in compliance with the License.
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@ -14,24 +14,22 @@ package org.apache.maven.util.introspection;
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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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* See the License for the specific language governing permissions and
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* limitations under the License.
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* limitations under the License.
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* ====================================================================
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*/
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*/
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import org.codehaus.plexus.util.StringUtils;
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import java.lang.reflect.Method;
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import java.lang.reflect.Method;
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import java.util.HashMap;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Map;
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import java.util.StringTokenizer;
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import java.util.StringTokenizer;
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import org.codehaus.plexus.util.StringUtils;
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/**
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/**
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* Using simple dotted expressions extract the values from a MavenProject
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* Using simple dotted expressions extract the values from a MavenProject
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* instance, For example we might want to extract a value like:
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* instance, For example we might want to extract a value like:
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* project.build.sourceDirectory
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* project.build.sourceDirectory
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*
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*
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* @author <a href="mailto:jason@maven.org">Jason van Zyl </a>
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* @author <a href="mailto:jason@maven.org">Jason van Zyl </a>
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* @version $Id: ReflectionValueExtractor.java,v 1.2 2005/03/01 07:05:33 brett
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* @version $Id$
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* Exp $
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*/
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*/
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public class ReflectionValueExtractor
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public class ReflectionValueExtractor
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{
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{
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}
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}
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// TODO: don't throw Exception
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// TODO: don't throw Exception
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public static Object evaluate( String expression, Object root ) throws Exception
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public static Object evaluate( String expression, Object root )
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throws Exception
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{
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{
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// ----------------------------------------------------------------------
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// ----------------------------------------------------------------------
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// Remove the leading "project" token
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// Remove the leading "project" token
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Method method = classMap.findMethod( methodName, args );
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Method method = classMap.findMethod( methodName, args );
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if ( method == null )
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{
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return null;
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}
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value = method.invoke( value, params );
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value = method.invoke( value, params );
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}
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}
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if ( classMap == null )
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if ( classMap == null )
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{
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{
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classMap = new ClassMap( clazz );
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classMap = new ClassMap( clazz );
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classMaps.put( clazz, classMap );
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}
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}
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return classMap;
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return classMap;
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* limitations under the License.
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* limitations under the License.
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*/
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*/
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import junit.framework.TestCase;
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import org.apache.maven.model.Dependency;
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import org.apache.maven.model.Dependency;
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import org.apache.maven.model.Model;
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import org.apache.maven.model.Model;
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import junit.framework.TestCase;
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/**
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/**
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* @author jdcasey
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* @author jdcasey
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* @version $Id$
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*/
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*/
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public class RegexBasedModelInterpolatorTest
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public class RegexBasedModelInterpolatorTest
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extends TestCase
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extends TestCase
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{
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{
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public void testShouldInterpolateDependencyVersionToSetSameAsProjectVersion()
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public void testShouldInterpolateDependencyVersionToSetSameAsProjectVersion()
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throws ModelInterpolationException
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throws ModelInterpolationException
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{
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{
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assertEquals( "foo-3.8.1", ( (Dependency) out.getDependencies().get( 0 ) ).getVersion() );
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assertEquals( "foo-3.8.1", ( (Dependency) out.getDependencies().get( 0 ) ).getVersion() );
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}
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}
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}
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}
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{
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{
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private MavenProject project;
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private MavenProject project;
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private MavenProjectBuilder builder;
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protected void setUp()
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protected void setUp()
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throws Exception
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throws Exception
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{
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{
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super.setUp();
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super.setUp();
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builder = (MavenProjectBuilder) lookup( MavenProjectBuilder.ROLE );
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File f = getFileForClasspathResource( "pom.xml" );
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File f = getFileForClasspathResource( "pom.xml" );
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project = getProject( f );
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project = getProject( f );
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assertNotNull( build );
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assertNotNull( build );
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}
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}
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public void testValueExtractorWithAInvalidExpression()
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throws Exception
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{
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assertNull( ReflectionValueExtractor.evaluate( "project.foo", project ) );
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}
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}
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}
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