New datasource class

New datasource class that can handle encrypted password

Change-Id: Ia5c4517b5cc1817f86e2fb07baa732d8b9003148
Issue-ID: CLAMP-64
Signed-off-by: Determe, Sebastien (sd378r) <sd378r@intl.att.com>

diff --git a/src/main/java/org/onap/clamp/clds/config/EncodedPasswordBasicDataSource.java b/src/main/java/org/onap/clamp/clds/config/EncodedPasswordBasicDataSource.java
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+++ b/src/main/java/org/onap/clamp/clds/config/EncodedPasswordBasicDataSource.java
@@ -0,0 +1,67 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP CLAMP
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights
+ *                             reserved.
+ * ================================================================================
+ * 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============================================
+ * ===================================================================
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+
+package org.onap.clamp.clds.config;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+
+import java.security.GeneralSecurityException;
+
+import org.apache.commons.dbcp.BasicDataSource;
+import org.onap.clamp.clds.util.CryptoUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+/**
+ * This class is an extension of the standard datasource, it will be used to
+ * decode the encoded password defined in the application.properties.
+ *
+ */
+@Component("EncodedPasswordBasicDataSource")
+public class EncodedPasswordBasicDataSource extends BasicDataSource {
+    protected static final EELFLogger logger        = EELFManager.getInstance()
+            .getLogger(EncodedPasswordBasicDataSource.class);
+    protected static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
+    @Autowired
+    private CryptoUtils               cryptoUtils;
+
+    /**
+     * The default constructor calling the parent one.
+     */
+    public EncodedPasswordBasicDataSource() {
+        super();
+    }
+
+    /**
+     * This method is used automatically by Spring to decode the password.
+     */
+    @Override
+    public synchronized void setPassword(String encodedPassword) {
+        try {
+            this.password = cryptoUtils.decrypt(encodedPassword);
+        } catch (GeneralSecurityException e) {
+            logger.error("Unable to decrypt the DB password", e);
+        }
+    }
+}
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