1 files changed, 130 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6.1-TUSCANY-3909/policy-logging/src/main/java/org/apache/tuscany/sca/policy/logging/jdk/JDKLoggingPolicyInterceptor.java b/sca-java-1.x/tags/1.6.1-TUSCANY-3909/policy-logging/src/main/java/org/apache/tuscany/sca/policy/logging/jdk/JDKLoggingPolicyInterceptor.java
new file mode 100644
index 0000000000..58a6d21ee7
--- /dev/null
+++ b/sca-java-1.x/tags/1.6.1-TUSCANY-3909/policy-logging/src/main/java/org/apache/tuscany/sca/policy/logging/jdk/JDKLoggingPolicyInterceptor.java
@@ -0,0 +1,130 @@
+/*
+ * 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.tuscany.sca.policy.logging.jdk;
+
+import java.util.logging.ConsoleHandler;
+import java.util.logging.Handler;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.xml.namespace.QName;
+
+import org.apache.tuscany.sca.assembly.xml.Constants;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.policy.PolicySet;
+
+/**
+ * Policy handler to handle PolicySet related to Logging with the QName
+ * {http://tuscany.apache.org/xmlns/sca/1.0/impl/java}LoggingPolicy
+ *
+ * @version $Rev$ $Date$
+ */
+public class JDKLoggingPolicyInterceptor implements Interceptor {
+    public static final String loggingPolicy = "JDKLoggingPolicy";
+    public static final QName policySetQName = new QName(Constants.SCA10_TUSCANY_NS, loggingPolicy);
+    private Logger logger = null;
+
+    private Invoker next;
+    private Operation operation;
+    private PolicySet policySet = null;
+    private String context;
+
+    public JDKLoggingPolicyInterceptor(String context, Operation operation, PolicySet policySet) {
+        super();
+        this.operation = operation;
+        this.policySet = policySet;
+        this.context = context;
+        init();
+    }
+
+    private void init() {
+        if (policySet != null) {
+            JDKLoggingPolicy policy = (JDKLoggingPolicy)policySet.getPolicies().get(0);
+            logger = Logger.getLogger(policy.getLoggerName());
+            logger.setLevel(policy.getLogLevel());
+            logger.setUseParentHandlers(policy.isUseParentHandlers());
+
+            boolean found = false;
+            for (Handler handler : logger.getHandlers()) {
+                if (handler instanceof ConsoleHandler) {
+                    found = true;
+                    break;
+                }
+            }
+
+            if (!found) {
+                ConsoleHandler consoleHandler = new ConsoleHandler();
+                consoleHandler.setLevel(Level.ALL);
+                logger.addHandler(consoleHandler);
+            }
+        }
+    }
+
+    public Message invoke(Message msg) {
+        if (logger == null) {
+            return getNext().invoke(msg);
+        }
+        Object msgBody = msg.getBody();
+        if (msgBody instanceof Object[]) {
+            logger.logp(Level.INFO, context, "", "Invoking operation - " + operation.getName());
+
+            StringBuffer sb = new StringBuffer();
+            if (msgBody == null) {
+                sb.append("");
+            } else {
+                Object[] args = (Object[])msgBody;
+                for (int i = 0; i < args.length; i++) {
+                    sb.append(args[i]);
+                    if (i != args.length - 1) {
+                        sb.append(", ");
+                    }
+                }
+            }
+
+            Object[] logParams = new Object[] {operation.getName(), sb.toString()};
+            logger.logp(Level.FINER, context, "", "Invoking operation {0} with arguments {1}", logParams);
+        }
+
+        Message responseMsg = null;
+        try {
+            responseMsg = getNext().invoke(msg);
+            return responseMsg;
+        } catch (RuntimeException e) {
+            logger.logp(Level.SEVERE, context, "", "Exception thrown from operation - " + operation.getName(), e);
+            throw e;
+        } finally {
+            if (responseMsg != null) {
+                Object[] logParams = new Object[] {operation.getName(), responseMsg.getBody()};
+                logger.logp(Level.INFO, context, "", "Returned from operation - " + operation.getName());
+                logger.logp(Level.FINER, context, "", "Returning from operation {0} with return value {1}", logParams);
+            }
+        }
+    }
+
+    public Invoker getNext() {
+        return next;
+    }
+
+    public void setNext(Invoker next) {
+        this.next = next;
+    }
+}