support run OS commands

src/main/java/org/springframework/roo/shell/SimpleParser.java

@@ -1191,8 +1191,8 @@ public class SimpleParser implements Parser {
 			}
 
 			LOGGER.info(sb.toString());
-			LOGGER.warning("** Type 'hint' (without the quotes) and hit ENTER for step-by-step guidance **"
-					+ StringUtils.LINE_SEPARATOR);
+//			LOGGER.warning("** Type 'hint' (without the quotes) and hit ENTER for step-by-step guidance **"
+//					+ StringUtils.LINE_SEPARATOR);
 		}
 	}
 

src/main/java/org/springframework/shell/commands/OsCommands.java

@@ -0,0 +1,42 @@
+package org.springframework.shell.commands;
+
+import java.io.IOException;
+import java.util.logging.Logger;
+
+import org.springframework.roo.shell.CliCommand;
+import org.springframework.roo.shell.CliOption;
+import org.springframework.roo.shell.CommandMarker;
+import org.springframework.roo.support.logging.HandlerUtils;
+import org.springframework.stereotype.Component;
+
+/**
+ * Command type to allow execution of native OS commands from the Spring Roo
+ * shell.
+ * 
+ * @author Stefan Schmidt
+ * @since 1.2.0
+ */
+@Component
+public class OsCommands implements CommandMarker {
+
+    private static final Logger LOGGER = HandlerUtils
+            .getLogger(OsCommands.class);
+
+    private OsOperations osOperations = new OsOperationsImpl();
+
+    @CliCommand(value = "!", help = "Allows execution of operating system (OS) commands.")
+    public void command(
+            @CliOption(key = { "", "command" }, mandatory = false, specifiedDefaultValue = "", unspecifiedDefaultValue = "", help = "The command to execute") final String command) {
+
+    	System.out.println("command is:" + command);
+        if (command != null && command.length() > 0) {
+            try {
+                osOperations.executeCommand(command);
+            }
+            catch (final IOException e) {
+                LOGGER.severe("Unable to execute command " + command + " ["
+                        + e.getMessage() + "]");
+            }
+        }
+    }
+}

src/main/java/org/springframework/shell/commands/OsOperations.java

@@ -0,0 +1,22 @@
+package org.springframework.shell.commands;
+
+import java.io.IOException;
+
+/**
+ * Operations type to allow execution of native OS commands from the Spring Roo
+ * shell.
+ * 
+ * @author Stefan Schmidt
+ * @since 1.2.0
+ */
+public interface OsOperations {
+
+    /**
+     * Attempts the execution of a commands and delegates the output to the
+     * standard logger.
+     * 
+     * @param command the command to execute
+     * @throws IOException if an error occurs
+     */
+    void executeCommand(String command) throws IOException;
+}

src/main/java/org/springframework/shell/commands/OsOperationsImpl.java

@@ -0,0 +1,67 @@
+package org.springframework.shell.commands;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.Reader;
+import java.util.logging.Logger;
+
+import org.apache.commons.io.IOUtils;
+import org.springframework.roo.support.logging.HandlerUtils;
+import org.springframework.stereotype.Component;
+
+/**
+ * Implementation of {@link OsOperations} interface.
+ * 
+ * @author Stefan Schmidt
+ * @since 1.2.0
+ */
+@Component
+public class OsOperationsImpl implements OsOperations {
+	private static final Logger LOGGER = HandlerUtils.getLogger(OsOperationsImpl.class);
+
+	public void executeCommand(final String command) throws IOException {
+		final File root = new File(".");
+		final Process p = Runtime.getRuntime().exec(command, null, root);
+		Reader input = new InputStreamReader(p.getInputStream());
+		Reader errors = new InputStreamReader(p.getErrorStream());
+
+		for (String line : IOUtils.readLines(input)) {
+			if (line.startsWith("[ERROR]")) {
+				LOGGER.severe(line);
+			}
+			else if (line.startsWith("[WARNING]")) {
+				LOGGER.warning(line);
+			}
+			else {
+				LOGGER.info(line);
+			}
+		}
+
+		
+		for (String line : IOUtils.readLines(errors)) {
+			if (line.startsWith("[ERROR]")) {
+				LOGGER.severe(line);
+			}
+			else if (line.startsWith("[WARNING]")) {
+				LOGGER.warning(line);
+			}
+			else {
+				LOGGER.info(line);
+			}
+		}
+
+		
+		p.getOutputStream().close();
+
+
+		try {
+			if (p.waitFor() != 0) {
+				LOGGER.warning("The command '" + command + "' did not complete successfully");
+			}
+		} catch (final InterruptedException e) {
+			throw new IllegalStateException(e);
+		}
+	}
+
+}