1 files changed, 111 insertions, 0 deletions
diff --git a/openstack-console/src/main/java/com/woorea/openstack/console/Console.java b/openstack-console/src/main/java/com/woorea/openstack/console/Console.java
new file mode 100644
index 0000000..13b7fbf
--- /dev/null
+++ b/openstack-console/src/main/java/com/woorea/openstack/console/Console.java
@@ -0,0 +1,111 @@
+package com.woorea.openstack.console;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+
+import jline.UnsupportedTerminal;
+import jline.console.ConsoleReader;
+import jline.console.completer.Completer;
+import jline.console.completer.StringsCompleter;
+
+import org.apache.commons.cli.CommandLine;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.GnuParser;
+import org.apache.commons.cli.HelpFormatter;
+
+public class Console {
+	
+	private Properties properties;
+	
+	private ConsoleReader reader;
+
+	private Environment environment;
+	
+	private HelpFormatter helpFormatter = new HelpFormatter();
+	
+	private static final CommandLineParser PARSER = new GnuParser();
+	
+	public Console(Environment environment, Properties properties) {
+		this.properties = properties;
+		this.environment = environment;
+	}
+	
+	public void start() throws IOException {
+		if(System.console() == null) {
+			reader = new ConsoleReader(System.in, System.out, new UnsupportedTerminal());
+		} else {
+			reader = new ConsoleReader();
+		}
+		do {
+			String line = reader.readLine(environment.getPrompt());
+			execute(line);
+		} while(true);
+	}
+	
+	public void execute(String line) {
+		String[] tokens = CommandLineHelper.parse(line);
+		if(tokens.length > 0) {
+			Command command = environment.commands.get(tokens[0]);
+			if(command != null) {
+				try {
+				CommandLine args = Console.PARSER.parse(command.getOptions(), Arrays.copyOfRange(tokens, 1, tokens.length));
+				command.execute(this, args);
+				} catch (Exception e) {
+					e.printStackTrace();
+					helpFormatter.printHelp(command.name, command.getOptions());
+				}
+			}
+		}
+	}
+
+	public void setEnvironment(Environment environment) {
+		Set<Completer> completers = new HashSet<Completer>(reader.getCompleters());
+		for(Completer c : completers) {
+			reader.removeCompleter(c);
+		}
+		Set<String> commands = new HashSet<String>();
+		for(Map.Entry<String,Command> c : environment.commands.entrySet()) {
+			commands.add(c.getKey());
+		}
+		reader.addCompleter(new StringsCompleter(commands));
+		this.environment = environment;
+	}
+	
+	public Environment getEnvironment() {
+		return this.environment;
+	}
+	
+	/**
+	 * @return the properties
+	 */
+	public String getProperty(String name) {
+		return properties.getProperty(name);
+	}
+	
+	/**
+	 * @return the properties
+	 */
+	public void setProperty(String name, Object value) {
+		properties.put(name, value);
+	}
+	
+	public void properties() {
+		for(Map.Entry<Object, Object> entry : properties.entrySet()) {
+			System.out.printf("%25s = %55s",entry.getKey(), entry.getValue());
+		}
+	}
+
+	public void exit() {
+		if(environment.parent == null) {
+			System.out.println("Goodbye");
+			System.exit(1);
+		} else {
+			environment = environment.parent;
+		}
+	}
+
+}