experimental implementation of a context restart, to speed up redeployments durring plugin development

scm-core/src/main/java/sonia/scm/boot/RestartEvent.java

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+/**
+ * Copyright (c) 2014, 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.boot;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import sonia.scm.Stage;
+import sonia.scm.event.Event;
+
+/**
+ * This event can be used to force a restart of the webapp context. The restart
+ * event is useful during plugin development, because we don't have to restart
+ * the whole server, to see our changes. The restart event can only be used in
+ * stage {@link Stage#DEVELOPMENT}.
+ *
+ * @author Sebastian Sdorra
+ * @since 2.0.0
+ */
+@Event
+public class RestartEvent
+{
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param cause
+   * @param reason
+   */
+  public RestartEvent(Class<?> cause, String reason)
+  {
+    this.cause = cause;
+    this.reason = reason;
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * The class which has fired the restart event.
+   *
+   *
+   * @return class which has fired the restart event
+   */
+  public Class<?> getCause()
+  {
+    return cause;
+  }
+
+  /**
+   * Returns the reason for the restart.
+   *
+   *
+   * @return reason for restart
+   */
+  public String getReason()
+  {
+    return reason;
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** cause of restart */
+  private final Class<?> cause;
+
+  /** reason for restart */
+  private final String reason;
+}