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java/org/apache/tomcat/dbcp/dbcp2/SwallowedExceptionLogger.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.tomcat.dbcp.dbcp2;
+
+import org.apache.juli.logging.Log;
+import org.apache.tomcat.dbcp.pool2.SwallowedExceptionListener;
+
+/**
+ * Class for logging swallowed exceptions.
+ *
+ * @since 2.0
+ */
+public class SwallowedExceptionLogger implements SwallowedExceptionListener {
+
+    private final Log log;
+    private final boolean logExpiredConnections;
+
+    /**
+     * Create a SwallowedExceptionLogger with the given logger. By default, expired connection logging is turned on.
+     *
+     * @param log
+     *            logger
+     */
+    public SwallowedExceptionLogger(final Log log) {
+        this(log, true);
+    }
+
+    /**
+     * Create a SwallowedExceptionLogger with the given logger and expired connection logging property.
+     *
+     * @param log
+     *            logger
+     * @param logExpiredConnections
+     *            false suppresses logging of expired connection events
+     */
+    public SwallowedExceptionLogger(final Log log, final boolean logExpiredConnections) {
+        this.log = log;
+        this.logExpiredConnections = logExpiredConnections;
+    }
+
+    @Override
+    public void onSwallowException(final Exception e) {
+        if (logExpiredConnections || !(e instanceof LifetimeExceededException)) {
+            log.warn(Utils.getMessage("swallowedExceptionLogger.onSwallowedException"), e);
+        }
+    }
+}