o MAVEN-276: Initial checkin. Product is functional, but not optimised for simplicity / performance

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@112940 13f79535-47bb-0310-9956-ffa450edef68
2003-02-16 23:05:23 +00:00
1 parent b97acf616b
commit e1e560c2da
@@ -0,0 +1,174 @@
+package org.apache.maven;
+
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ *    if any, must include the following acknowledgment:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowledgment may appear in the software itself,
+ *    if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Apache" and "Apache Software Foundation" and
+ *    "Apache Maven" must not be used to endorse or promote products
+ *    derived from this software without prior written permission. For
+ *    written permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache",
+ *    "Apache Maven", nor may "Apache" appear in their name, without
+ *    prior written permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ * ====================================================================
+ */
+
+import java.util.List;
+
+import org.dom4j.Attribute;
+import org.dom4j.Node;
+import org.dom4j.tree.DefaultElement;
+
+/**
+ * @author <a href="bwalding@jakarta.org">Ben Walding</a>
+ * @version $Id: NavBean.java,v 1.1 2003/02/16 23:03:02 bwalding Exp $
+ */
+public class NavBean
+{
+    private String location;
+    private Node document;
+
+    public void setDocument(Object o)
+    {
+        document = (Node) o;
+
+        Node loc = document.selectSingleNode("//location");
+        if (loc != null)
+            location = loc.getStringValue();
+
+    }
+
+    private static String getAttribute(DefaultElement elem, String attribute, String defaultValue)
+    {
+        Attribute attr = elem.attribute(attribute);
+        if (attr == null)
+            return defaultValue;
+
+        return attr.getStringValue();
+    }
+
+    private static boolean getCollapseAttribute(DefaultElement elem)
+    {
+        return Boolean.valueOf(getAttribute(elem, "collapse", "false")).booleanValue();
+    }
+    private static String getHREFAttribute(DefaultElement elem)
+    {
+        return getAttribute(elem, "href", null);
+    }
+
+    /**
+     * Determines if the given node is collapsed.  If a parent of this node is
+     * collapsed, this will give spurious results.
+     * @param o
+     * @return boolean
+     */
+    public boolean isCollapsed(Object o)
+    {
+        //If we don't know where we are, collapse it - something outside of our knowledge
+        if (location == null)
+            return true;
+
+        if (!(o instanceof DefaultElement))
+        {
+            System.out.println(o.getClass().getName());
+            return false;
+        }
+        DefaultElement elem = (DefaultElement) o;
+
+        boolean collapsed = getCollapseAttribute(elem);
+        if (!collapsed)
+            return false;
+
+        if (isSelected(o))
+            return false;
+
+        String xpath = ".//item[@href='" + location + "']";
+
+        List l = elem.selectNodes(xpath);
+
+        if (l.size() != 0)
+            return false;
+
+        return true;
+    }
+
+    /**
+     * Determines if a given <code>item</code> node is the selected node
+     * @param o
+     * @return boolean
+     */
+    public boolean isSelected(Object o)
+    {
+        if (location == null)
+            return false;
+
+        DefaultElement elem = (DefaultElement) o;
+        if (location.equals(getHREFAttribute(elem)))
+            return true;
+
+        return false;
+    }
+
+    /**
+     * Sets the location.
+     * @param location The location to set
+     */
+    public void setLocation(String location)
+    {
+        this.location = location;
+    }
+
+    /**
+     * Find the first <code>item</code> with a given href
+     * @param href
+     * @return DefaultElement
+     */
+    public DefaultElement getFirstNodeByHREF(String href)
+    {
+        String xpath = "//item[@href='" + href + "']";
+        return (DefaultElement) document.selectSingleNode(xpath);
+    }
+}