replace guava eventbus with legman

scm-webapp/src/main/java/sonia/scm/event/LegmanScmEventBus.java

@@ -0,0 +1,124 @@
+/**
+ * Copyright (c) 2010, Sebastian Sdorra
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of SCM-Manager; nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://bitbucket.org/sdorra/scm-manager
+ *
+ */
+
+
+
+package sonia.scm.event;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import com.github.legman.EventBus;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class LegmanScmEventBus extends ScmEventBus
+{
+
+  /** Field description */
+  private static final String NAME = "ScmEventBus";
+
+  /**
+   * the logger for LegmanScmEventBus
+   */
+  private static final Logger logger =
+    LoggerFactory.getLogger(LegmanScmEventBus.class);
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   */
+  public LegmanScmEventBus()
+  {
+    eventBus = new EventBus(NAME);
+  }
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * {@inheritDoc}
+   *
+   *
+   * @param event
+   */
+  @Override
+  public void post(Object event)
+  {
+    logger.debug("post {} to event bus", event);
+    eventBus.post(event);
+  }
+
+  /**
+   * Registers a object to the eventbus.
+   *
+   * @param object object to register
+   *
+   * @see {@link #register(java.lang.Object)}
+   */
+  @Override
+  public void register(Object object)
+  {
+    logger.debug("register {} to event bus", object);
+    eventBus.register(object);
+  }
+
+  /**
+   * {@inheritDoc}
+   *
+   *
+   * @param object
+   */
+  @Override
+  public void unregister(Object object)
+  {
+    logger.debug("unregister {} from event bus", object);
+
+    try
+    {
+      eventBus.unregister(object);
+    }
+    catch (IllegalArgumentException ex)
+    {
+      logger.trace("object {} was not registered", object);
+    }
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** event bus */
+  private final EventBus eventBus;
+}