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java/org/apache/naming/AbstractRef.java

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+/*
+ * 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.naming;
+
+import java.util.Enumeration;
+
+import javax.naming.Context;
+import javax.naming.RefAddr;
+import javax.naming.Reference;
+
+public abstract class AbstractRef extends Reference {
+
+    private static final long serialVersionUID = 1L;
+
+
+    public AbstractRef(String className) {
+        super(className);
+    }
+
+
+    public AbstractRef(String className, String factory, String factoryLocation) {
+        super(className, factory, factoryLocation);
+    }
+
+
+    /**
+     * Retrieves the class name of the factory of the object to which this
+     * reference refers.
+     */
+    @Override
+    public final String getFactoryClassName() {
+        String factory = super.getFactoryClassName();
+        if (factory != null) {
+            return factory;
+        } else {
+            factory = System.getProperty(Context.OBJECT_FACTORIES);
+            if (factory != null) {
+                return null;
+            } else {
+                return getDefaultFactoryClassName();
+            }
+        }
+    }
+
+
+    protected abstract String getDefaultFactoryClassName();
+
+
+    /**
+     * Return a String rendering of this object.
+     */
+    @Override
+    public final String toString() {
+        StringBuilder sb = new StringBuilder(this.getClass().getSimpleName());
+        sb.append("[className=");
+        sb.append(getClassName());
+        sb.append(",factoryClassLocation=");
+        sb.append(getFactoryClassLocation());
+        sb.append(",factoryClassName=");
+        sb.append(getFactoryClassName());
+        Enumeration<RefAddr> refAddrs = getAll();
+        while (refAddrs.hasMoreElements()) {
+            RefAddr refAddr = refAddrs.nextElement();
+            sb.append(",{type=");
+            sb.append(refAddr.getType());
+            sb.append(",content=");
+            sb.append(refAddr.getContent());
+            sb.append("}");
+        }
+        sb.append("]");
+        return sb.toString();
+    }
+}