Implement new wire type for bundle dependencies. (FELIX-28)


git-svn-id: https://svn.apache.org/repos/asf/incubator/felix/trunk@501999 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/framework/src/main/java/org/apache/felix/framework/searchpolicy/R4WireModule.java b/framework/src/main/java/org/apache/felix/framework/searchpolicy/R4WireModule.java
new file mode 100644
index 0000000..5067743
--- /dev/null
+++ b/framework/src/main/java/org/apache/felix/framework/searchpolicy/R4WireModule.java
@@ -0,0 +1,128 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.felix.framework.searchpolicy;
+
+import java.net.URL;
+import java.util.*;
+
+import org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.ResolvedPackage;
+import org.apache.felix.framework.searchpolicy.R4SearchPolicyCore.PackageSource;
+import org.apache.felix.framework.util.Util;
+import org.apache.felix.framework.util.manifestparser.Capability;
+import org.apache.felix.moduleloader.*;
+
+public class R4WireModule implements IWire
+{
+    private IModule m_importer = null;
+    private IModule m_exporter = null;
+    private ICapability m_capability = null;
+    private Map m_pkgMap = null;
+    
+    public R4WireModule(IModule importer, IModule exporter, ICapability capability, Map pkgMap)
+    {
+        m_importer = importer;
+        m_exporter = exporter;
+        m_capability = capability;
+        m_pkgMap = pkgMap;
+    }
+    
+    /* (non-Javadoc)
+     * @see org.apache.felix.framework.searchpolicy.IWire#getImportingModule()
+     */
+    public IModule getImporter()
+    {
+        return m_importer;
+    }
+    
+    /* (non-Javadoc)
+     * @see org.apache.felix.framework.searchpolicy.IWire#getExportingModule()
+     */
+    public IModule getExporter()
+    {
+        return m_exporter;
+    }
+    
+    /* (non-Javadoc)
+     * @see org.apache.felix.framework.searchpolicy.IWire#getExport()
+     */
+    public ICapability getCapability()
+    {
+        return m_capability;
+    }
+
+    /* (non-Javadoc)
+     * @see org.apache.felix.framework.searchpolicy.IWire#getClass(java.lang.String)
+     */
+    public Class getClass(String name) throws ClassNotFoundException
+    {
+        // Get the package of the target class.
+        String pkgName = Util.getClassPackage(name);
+
+        ResolvedPackage ps = (ResolvedPackage) m_pkgMap.get(pkgName);
+        for (int srcIdx = 0; (ps != null) && (srcIdx < ps.m_sourceList.size()); srcIdx++)
+        {
+            PackageSource rc = (PackageSource) ps.m_sourceList.get(srcIdx);
+            if ((rc.m_module == m_importer) ||
+                ((rc.m_capability instanceof Capability) &&
+                ((Capability) rc.m_capability).isIncluded(name)))
+            {
+                Class clazz = rc.m_module.getContentLoader().getClass(name);
+                if (clazz != null)
+                {
+                    return clazz;
+                }
+            }
+        }
+
+        return null;
+    }
+
+    /* (non-Javadoc)
+     * @see org.apache.felix.framework.searchpolicy.IWire#getResource(java.lang.String)
+     */
+    public URL getResource(String name) throws ResourceNotFoundException
+    {
+        // Get the package of the target class.
+        String pkgName = Util.getResourcePackage(name);
+
+        ResolvedPackage ps = (ResolvedPackage) m_pkgMap.get(pkgName);
+        for (int srcIdx = 0; (ps != null) && (srcIdx < ps.m_sourceList.size()); srcIdx++)
+        {
+            PackageSource rc = (PackageSource) ps.m_sourceList.get(srcIdx);
+            URL url = rc.m_module.getContentLoader().getResource(name);
+            if (url != null)
+            {
+                return url;
+            }
+        }
+
+        return null;
+    }
+
+    public Enumeration getResources(String name) throws ResourceNotFoundException
+    {
+// TODO: RB - Implement R4WireModule.getResources()
+        return null;
+    }
+
+    public String toString()
+    {
+        return m_importer + " -> " + m_capability + " -> " + m_exporter;
+    }
+}
\ No newline at end of file