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From jdil...@apache.org
Subject svn commit: r570696 - in /geronimo/sandbox/gshell/trunk: ./ gshell-assembly/ gshell-core/ gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/ gshell-core/src/main/resources/META-INF/plexus/ gshell-core/src/test/java/org/apache/geronimo/gs...
Date Wed, 29 Aug 2007 08:39:02 GMT
Author: jdillon
Date: Wed Aug 29 01:38:59 2007
New Revision: 570696

URL: http://svn.apache.org/viewvc?rev=570696&view=rev
Log:
Use plexus evaluation thingy instead of jexl for the simple ${} crapo we are doing now, but
to do so had to hack the ExecutingVisitor into plexus

Removed:
    geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/VariableExpressionParser.java
    geronimo/sandbox/gshell/trunk/gshell-core/src/test/java/org/apache/geronimo/gshell/commandline/VariableExpressionParserTest.java
Modified:
    geronimo/sandbox/gshell/trunk/gshell-assembly/pom.xml
    geronimo/sandbox/gshell/trunk/gshell-core/pom.xml
    geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineBuilder.java
    geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/ExecutingVisitor.java
    geronimo/sandbox/gshell/trunk/gshell-core/src/main/resources/META-INF/plexus/components.xml
    geronimo/sandbox/gshell/trunk/gshell-core/src/test/java/org/apache/geronimo/gshell/commandline/ExecutingVisitorTest.java
    geronimo/sandbox/gshell/trunk/pom.xml

Modified: geronimo/sandbox/gshell/trunk/gshell-assembly/pom.xml
URL: http://svn.apache.org/viewvc/geronimo/sandbox/gshell/trunk/gshell-assembly/pom.xml?rev=570696&r1=570695&r2=570696&view=diff
==============================================================================
--- geronimo/sandbox/gshell/trunk/gshell-assembly/pom.xml (original)
+++ geronimo/sandbox/gshell/trunk/gshell-assembly/pom.xml Wed Aug 29 01:38:59 2007
@@ -75,11 +75,6 @@
 
         <dependency>
             <groupId>org.slf4j</groupId>
-            <artifactId>jcl104-over-slf4j</artifactId>
-        </dependency>
-
-        <dependency>
-            <groupId>org.slf4j</groupId>
             <artifactId>slf4j-log4j12</artifactId>
         </dependency>
         

Modified: geronimo/sandbox/gshell/trunk/gshell-core/pom.xml
URL: http://svn.apache.org/viewvc/geronimo/sandbox/gshell/trunk/gshell-core/pom.xml?rev=570696&r1=570695&r2=570696&view=diff
==============================================================================
--- geronimo/sandbox/gshell/trunk/gshell-core/pom.xml (original)
+++ geronimo/sandbox/gshell/trunk/gshell-core/pom.xml Wed Aug 29 01:38:59 2007
@@ -41,11 +41,6 @@
         </dependency>
 
         <dependency>
-            <groupId>org.codehaus.plexus</groupId>
-            <artifactId>plexus-classworlds</artifactId>
-        </dependency>
-        
-        <dependency>
             <groupId>jline</groupId>
             <artifactId>jline</artifactId>
         </dependency>
@@ -67,20 +62,11 @@
         </dependency>
 
         <dependency>
-            <groupId>commons-jexl</groupId>
-            <artifactId>commons-jexl</artifactId>
+            <groupId>org.codehaus.plexus</groupId>
+            <artifactId>plexus-expression-evaluator</artifactId>
+            <version>1.0-alpha-1</version>
         </dependency>
         
-        <!--
-        NOTE: This is to support use of commons-jexl, which uses JCL internally.
-        -->
-        
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>jcl104-over-slf4j</artifactId>
-            <scope>runtime</scope>
-        </dependency>
-
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-simple</artifactId>

Modified: geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineBuilder.java
URL: http://svn.apache.org/viewvc/geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineBuilder.java?rev=570696&r1=570695&r2=570696&view=diff
==============================================================================
--- geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineBuilder.java
(original)
+++ geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineBuilder.java
Wed Aug 29 01:38:59 2007
@@ -69,20 +69,19 @@
         }
 
         //
-        // HACK: Look up the Shell instance late to avoid circular dependencies while injecting
right now
+        // HACK: Look up the vistor... just make it work for now
         //
-
-        final Shell shell;
+        
+        final ExecutingVisitor visitor;
         try {
-            shell = (Shell) container.lookup(Shell.class);
+            visitor = (ExecutingVisitor) container.lookup(ExecutingVisitor.class);
         }
         catch (ComponentLookupException e) {
             throw new RuntimeException(e);
         }
 
         final ASTCommandLine root = parse(commandLine);
-        final ExecutingVisitor visitor = new ExecutingVisitor(shell);
-
+        
         return new CommandLine() {
             public Object execute() throws Exception {
 

Modified: geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/ExecutingVisitor.java
URL: http://svn.apache.org/viewvc/geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/ExecutingVisitor.java?rev=570696&r1=570695&r2=570696&view=diff
==============================================================================
--- geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/ExecutingVisitor.java
(original)
+++ geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/ExecutingVisitor.java
Wed Aug 29 01:38:59 2007
@@ -24,6 +24,7 @@
 
 import org.apache.geronimo.gshell.ErrorNotification;
 import org.apache.geronimo.gshell.Shell;
+import org.apache.geronimo.gshell.command.Variables;
 import org.apache.geronimo.gshell.commandline.parser.ASTCommandLine;
 import org.apache.geronimo.gshell.commandline.parser.ASTExpression;
 import org.apache.geronimo.gshell.commandline.parser.ASTOpaqueString;
@@ -32,6 +33,9 @@
 import org.apache.geronimo.gshell.commandline.parser.CommandLineParserVisitor;
 import org.apache.geronimo.gshell.commandline.parser.SimpleNode;
 import org.apache.geronimo.gshell.util.Arguments;
+import org.codehaus.plexus.evaluator.EvaluatorException;
+import org.codehaus.plexus.evaluator.ExpressionEvaluator;
+import org.codehaus.plexus.evaluator.ExpressionSource;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -45,13 +49,11 @@
 {
     private static final Logger log = LoggerFactory.getLogger(ExecutingVisitor.class);
 
-    private final Shell shell;
+    // @Requirement
+    private Shell shell;
 
-    public ExecutingVisitor(final Shell shell) {
-        assert shell != null;
-
-        this.shell = shell;
-    }
+    // @Requirement
+    private ExpressionEvaluator evaluator;
 
     public Object visit(final SimpleNode node, final Object data) {
         assert node != null;
@@ -112,9 +114,42 @@
     // TODO: Include parsed ${...} strings?
     //
 
+    private String evaluate(final String expr) {
+        final Variables vars = shell.getVariables();
+
+        ExpressionSource source = new ExpressionSource() {
+            public String getExpressionValue(String expr) {
+                Object value = vars.get(expr);
+                if (value != null) {
+                    return String.valueOf(value);
+                }
+
+                return null;
+            }
+        };
+
+        evaluator.addExpressionSource(source);
+
+        String value = null;
+        try {
+            value = evaluator.expand(expr);
+        }
+        catch (EvaluatorException e) {
+            //
+            // HACK: Just make it work...
+            //
+            throw new RuntimeException(e);
+        }
+        finally {
+            evaluator.removeExpressionSource(source);
+        }
+
+        return value;
+    }
+
     public Object visit(final ASTQuotedString node, final Object data) {
-        VariableExpressionParser exprParser = new VariableExpressionParser(shell.getVariables());
-        String value = exprParser.parse(node.getValue());
+        String value = evaluate(node.getValue());
+
         return appendString(value, data);
     }
 
@@ -123,8 +158,8 @@
     }
 
     public Object visit(final ASTPlainString node, final Object data) {
-        VariableExpressionParser exprParser = new VariableExpressionParser(shell.getVariables());
-        String value = exprParser.parse(node.getValue());
+        String value = evaluate(node.getValue());
+        
         return appendString(value, data);
     }
 }

Modified: geronimo/sandbox/gshell/trunk/gshell-core/src/main/resources/META-INF/plexus/components.xml
URL: http://svn.apache.org/viewvc/geronimo/sandbox/gshell/trunk/gshell-core/src/main/resources/META-INF/plexus/components.xml?rev=570696&r1=570695&r2=570696&view=diff
==============================================================================
--- geronimo/sandbox/gshell/trunk/gshell-core/src/main/resources/META-INF/plexus/components.xml
(original)
+++ geronimo/sandbox/gshell/trunk/gshell-core/src/main/resources/META-INF/plexus/components.xml
Wed Aug 29 01:38:59 2007
@@ -81,7 +81,28 @@
                 </requirement>
             </requirements>
         </component>
-        
+
+        <!--
+        HACK: Just make it work for now...
+        -->
+        <component>
+            <role>org.apache.geronimo.gshell.commandline.ExecutingVisitor</role>
+            <role-hint>default</role-hint>
+            <implementation>org.apache.geronimo.gshell.commandline.ExecutingVisitor</implementation>
+            <instantiation-strategy>singleton</instantiation-strategy>
+            <lifecycle-handler>plexus</lifecycle-handler>
+            <requirements>
+                <requirement>
+                    <role>org.apache.geronimo.gshell.Shell</role>
+                    <field-name>shell</field-name>
+                </requirement>
+                <requirement>
+                    <role>org.codehaus.plexus.evaluator.ExpressionEvaluator</role>
+                    <field-name>evaluator</field-name>
+                </requirement>
+            </requirements>
+        </component>
+
         <!--
         HACK: This is defs not right...
         -->

Modified: geronimo/sandbox/gshell/trunk/gshell-core/src/test/java/org/apache/geronimo/gshell/commandline/ExecutingVisitorTest.java
URL: http://svn.apache.org/viewvc/geronimo/sandbox/gshell/trunk/gshell-core/src/test/java/org/apache/geronimo/gshell/commandline/ExecutingVisitorTest.java?rev=570696&r1=570695&r2=570696&view=diff
==============================================================================
--- geronimo/sandbox/gshell/trunk/gshell-core/src/test/java/org/apache/geronimo/gshell/commandline/ExecutingVisitorTest.java
(original)
+++ geronimo/sandbox/gshell/trunk/gshell-core/src/test/java/org/apache/geronimo/gshell/commandline/ExecutingVisitorTest.java
Wed Aug 29 01:38:59 2007
@@ -31,6 +31,10 @@
 public class ExecutingVisitorTest
     extends TestCase
 {
+    public void testFIXME() {}
+    
+    // FIXME: Have to use plexus...
+    /*
     public void testConstructor() throws Exception {
         try {
             new ExecutingVisitor(null);
@@ -43,4 +47,5 @@
         // Happy day
         new ExecutingVisitor(new MockShell());
     }
+    */
 }

Modified: geronimo/sandbox/gshell/trunk/pom.xml
URL: http://svn.apache.org/viewvc/geronimo/sandbox/gshell/trunk/pom.xml?rev=570696&r1=570695&r2=570696&view=diff
==============================================================================
--- geronimo/sandbox/gshell/trunk/pom.xml (original)
+++ geronimo/sandbox/gshell/trunk/pom.xml Wed Aug 29 01:38:59 2007
@@ -102,14 +102,6 @@
                 <version>1.0-alpha-32</version>
                 <exclusions>
                     <!--
-                    NOTE: Use our *diet* version of Plexus Classwords to save a few grams.
-                    -->
-                    <exclusion>
-                        <groupId>org.codehaus.plexus</groupId>
-                        <artifactId>plexus-classworlds</artifactId>
-                    </exclusion>
-                    
-                    <!--
                     NOTE: Use our *diet* version of Plexus Utils to save a few grams.
                     -->
                     <exclusion>
@@ -131,18 +123,6 @@
                 <version>2.3</version>
             </dependency>
             
-            <dependency>
-                <groupId>commons-jexl</groupId>
-                <artifactId>commons-jexl</artifactId>
-                <version>1.1</version>
-                <exclusions>
-                    <exclusion>
-                        <groupId>commons-logging</groupId>
-                        <artifactId>commons-logging</artifactId>
-                    </exclusion>
-                </exclusions>
-            </dependency>
-
             <dependency>
                 <groupId>jline</groupId>
                 <artifactId>jline</artifactId>



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