1 files changed, 118 insertions, 0 deletions
diff --git a/dblib/common/src/main/java/org/apache/tomcat/jdbc/pool/DisposableConnectionFacade.java b/dblib/common/src/main/java/org/apache/tomcat/jdbc/pool/DisposableConnectionFacade.java
new file mode 100644
index 0000000..ed0e9db
--- /dev/null
+++ b/dblib/common/src/main/java/org/apache/tomcat/jdbc/pool/DisposableConnectionFacade.java
@@ -0,0 +1,118 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openecomp
+ * ================================================================================
+ * Copyright (C) 2016 - 2017 AT&T
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+/*
+ * 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.tomcat.jdbc.pool;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+import java.sql.SQLException;
+
+/**
+ * A DisposableConnectionFacade object is the top most interceptor that wraps an
+ * object of type {@link PooledConnection}. The ProxyCutOffConnection intercepts
+ * two methods:
+ * <ul>
+ *   <li>{@link java.sql.Connection#close()} - returns the connection to the
+ *       pool then breaks the link between cutoff and the next interceptor.
+ *       May be called multiple times.</li>
+ *   <li>{@link java.lang.Object#toString()} - returns a custom string for this
+ *       object</li>
+ * </ul>
+ * By default method comparisons is done on a String reference level, unless the
+ * {@link PoolConfiguration#setUseEquals(boolean)} has been called with a
+ * <code>true</code> argument.
+ */
+public class DisposableConnectionFacade extends JdbcInterceptor {
+    protected DisposableConnectionFacade(JdbcInterceptor interceptor) {
+        setUseEquals(interceptor.isUseEquals());
+        setNext(interceptor);
+    }
+
+    @Override
+    public void reset(ConnectionPool parent, PooledConnection con) {
+    }
+
+
+
+    @Override
+    public int hashCode() {
+        return System.identityHashCode(this);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        return this==obj;
+    }
+
+    @Override
+    public Object invoke(Object proxy, Method method, Object[] args)
+            throws Throwable {
+        if (compare(EQUALS_VAL, method)) {
+            return Boolean.valueOf(
+                    this.equals(Proxy.getInvocationHandler(args[0])));
+        } else if (compare(HASHCODE_VAL, method)) {
+            return Integer.valueOf(this.hashCode());
+        } else if (getNext()==null) {
+            if (compare(ISCLOSED_VAL, method)) {
+                return Boolean.TRUE;
+            }
+            else if (compare(CLOSE_VAL, method)) {
+                return null;
+            }
+            else if (compare(ISVALID_VAL, method)) {
+                return Boolean.FALSE;
+            }
+        }
+
+        try {
+            return super.invoke(proxy, method, args);
+        } catch (NullPointerException e) {
+            if (getNext() == null) {
+                if (compare(TOSTRING_VAL, method)) {
+                    return "DisposableConnectionFacade[null]";
+                }
+                throw new SQLException(
+                        "PooledConnection has already been closed.");
+            }
+
+            throw e;
+        } finally {
+            if (compare(CLOSE_VAL, method)) {
+                setNext(null);
+            }
+        }
+    }
+}