JBIDE-18186 - support for module-alias in modules.xml inside wildfly/eap

as/plugins/org.jboss.ide.eclipse.as.classpath.core/src/org/jboss/ide/eclipse/as/classpath/core/runtime/cache/internal/ModuleAliasUtil.java

@@ -0,0 +1,42 @@
+/*******************************************************************************
+ * Copyright (c) 2014 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
+package org.jboss.ide.eclipse.as.classpath.core.runtime.cache.internal;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+
+import org.jboss.ide.eclipse.as.core.util.FileUtil;
+import org.jboss.tools.foundation.core.xml.XMLMemento;
+
+public class ModuleAliasUtil {
+	public String getAlias(File moduleXml) {
+		if( moduleXml.exists()) {
+			try {
+				String contents = FileUtil.getContents(moduleXml);
+				if( contents != null ) {
+					XMLMemento memento = XMLMemento.createReadRoot(new FileInputStream(moduleXml));
+					if( memento != null ) {
+						String nodeName = memento.getNodeName();
+						if( "module-alias".equals(nodeName)) {
+							String targName = memento.getString("target-name");
+							if( targName != null )
+								return targName;
+						}
+					}
+				}
+			} catch(IOException ce) {
+				// Ignore
+			}
+		}
+		return null;
+	}
+}

as/plugins/org.jboss.ide.eclipse.as.classpath.core/src/org/jboss/ide/eclipse/as/classpath/core/runtime/cache/internal/ModuleSlot.java

@@ -71,21 +71,30 @@ public IPath[] getJars(IPath modulesFolder) {
 			IPath lay = new Path(layeredPaths[i].getAbsolutePath());
 			File layeredPath = new File(lay.append(getPath()).toOSString());
 			if( layeredPath.exists()) {
-				return getJarsFrom(layeredPath);
+				return getJarsFrom(layeredPath, modulesFolder);
 			}
 		}
 		return new IPath[0];
 	}
 
 
-	private IPath[] getJarsFrom(File layeredPath) {
+	private IPath[] getJarsFrom(File layeredPath, IPath modulesFolder) {
 		ArrayList<IPath> list = new ArrayList<IPath>();
 		File[] children = layeredPath.listFiles();
 		for( int i = 0; i < children.length; i++ ) {
 			if( children[i].isFile() && children[i].getName().endsWith(".jar")) {
 				list.add(new Path(children[i].getAbsolutePath()));
 			}
 		}
+		if( list.size() == 0 ) {
+			// Odds are high this is a module-alias, so we should check. 
+			File modulexml = new File(layeredPath, "module.xml");
+			String alias = new ModuleAliasUtil().getAlias(modulexml);
+			if( alias != null ) {
+				return new ModuleSlot(alias).getJars(modulesFolder);
+			}
+		}
+
 		return (IPath[]) list.toArray(new IPath[list.size()]);
 	}
 }