FELIX-1656: new Shell command: shell:clear, patch provided by Lars Heinemann
git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@821906 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/karaf/shell/commands/src/main/java/org/apache/felix/karaf/shell/commands/ClearAction.java b/karaf/shell/commands/src/main/java/org/apache/felix/karaf/shell/commands/ClearAction.java
new file mode 100644
index 0000000..829f861
--- /dev/null
+++ b/karaf/shell/commands/src/main/java/org/apache/felix/karaf/shell/commands/ClearAction.java
@@ -0,0 +1,36 @@
+/*
+ * 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.felix.karaf.shell.commands;
+
+import org.apache.felix.gogo.commands.Command;
+import org.apache.felix.karaf.shell.console.OsgiCommandSupport;
+
+/**
+ * A command to clear the console buffer
+ */
+@Command(scope = "shell", name = "clear", description = "Clears the console buffer")
+public class ClearAction extends OsgiCommandSupport {
+
+ protected Object doExecute() throws Exception {
+ System.out.print("\33[2J");
+ System.out.flush();
+ System.out.print("\33[1;1H");
+ System.out.flush();
+ return null;
+ }
+
+}
diff --git a/karaf/shell/commands/src/main/resources/OSGI-INF/blueprint/shell-commands.xml b/karaf/shell/commands/src/main/resources/OSGI-INF/blueprint/shell-commands.xml
index ea44666..596a1a8 100644
--- a/karaf/shell/commands/src/main/resources/OSGI-INF/blueprint/shell-commands.xml
+++ b/karaf/shell/commands/src/main/resources/OSGI-INF/blueprint/shell-commands.xml
@@ -40,6 +40,9 @@
<command name="shell/info">
<action class="org.apache.felix.karaf.shell.commands.InfoAction"/>
</command>
+ <command name="shell/clear">
+ <action class="org.apache.felix.karaf.shell.commands.ClearAction"/>
+ </command>
<command name="shell/java">
<action class="org.apache.felix.karaf.shell.commands.JavaAction"/>
</command>