svn commit: r410050 - /geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineExecutingVisitor.java

[jd...@apache.org]

Author: jdillon
Date: Mon May 29 01:22:00 2006
New Revision: 410050

URL: http://svn.apache.org/viewvc?rev=410050&view=rev
Log:
Start of visitor which will execute the command line

Added:
    geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineExecutingVisitor.java   (with props)

Added: geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineExecutingVisitor.java
URL: http://svn.apache.org/viewvc/geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineExecutingVisitor.java?rev=410050&view=auto
==============================================================================
--- geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineExecutingVisitor.java (added)
+++ geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineExecutingVisitor.java Mon May 29 01:22:00 2006
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2006 The Apache Software Foundation
+ *
+ * Licensed 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.geronimo.gshell.commandline;
+
+import org.apache.geronimo.gshell.commandline.parser.CommandLineParserVisitor;
+import org.apache.geronimo.gshell.commandline.parser.SimpleNode;
+import org.apache.geronimo.gshell.commandline.parser.ASTCommandLine;
+import org.apache.geronimo.gshell.commandline.parser.ASTExpression;
+import org.apache.geronimo.gshell.commandline.parser.ASTQuotedString;
+import org.apache.geronimo.gshell.commandline.parser.ASTOpaqueString;
+import org.apache.geronimo.gshell.commandline.parser.ASTPlainString;
+import org.apache.geronimo.gshell.commandline.parser.StringSupport;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import java.util.List;
+import java.util.ArrayList;
+
+/**
+ * Command line parser visitor which will execute command-lines as parsed.
+ *
+ * @version $Id$
+ */
+public class CommandLineExecutingVisitor
+    implements CommandLineParserVisitor
+{
+    private static final Log log = LogFactory.getLog(CommandLineExecutingVisitor.class);
+
+    public Object visit(final SimpleNode node, final Object data) {
+        assert node != null;
+        assert data != null;
+
+        log.error("Unhandled node type: " + node.getClass().getName());
+
+        return null;
+    }
+
+    public Object visit(final ASTCommandLine node, final Object data) {
+        assert node != null;
+        assert data != null;
+
+        //
+        // NOTE: Visiting children will execute seperate commands in serial
+        //
+
+        Object result = node.childrenAccept(this, data);
+
+        return result;
+    }
+
+    public Object visit(final ASTExpression node, final Object data) {
+        assert node != null;
+        assert data != null;
+
+        List args = new ArrayList(node.jjtGetNumChildren());
+
+        node.childrenAccept(this, args);
+
+        //
+        // TODO: Execute?  Return result?
+        //
+
+        return args;
+    }
+
+    private Object appendString(final StringSupport node, final Object data) {
+        assert node != null;
+        assert data != null;
+        assert data instanceof List;
+
+        List args = (List)data;
+        String value = node.getValue();
+        args.add(value);
+
+        return value;
+    }
+
+    public Object visit(final ASTQuotedString node, final Object data) {
+        return appendString(node, data);
+    }
+
+    public Object visit(final ASTOpaqueString node, final Object data) {
+        return appendString(node, data);
+    }
+
+    public Object visit(final ASTPlainString node, final Object data) {
+        return appendString(node, data);
+    }
+}

Propchange: geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineExecutingVisitor.java
------------------------------------------------------------------------------
    svn:eol-style = native

Propchange: geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineExecutingVisitor.java
------------------------------------------------------------------------------
    svn:keywords = Date Author Id Revision HeadURL

Propchange: geronimo/sandbox/gshell/trunk/gshell-core/src/main/java/org/apache/geronimo/gshell/commandline/CommandLineExecutingVisitor.java
------------------------------------------------------------------------------
    svn:mime-type = text/plain