Examples of org.apache.karaf.shell.commands.Action

org.apache.karaf.shell.commands.Action
An action allows to easily execute commands in karaf. It can be assumed that each action is only accessed by a single thread at a time. An Action is always part of an AbstractCommand. The AbstractCommand makes sure the single threaded assumption above is true. Before the call to the execute method the action is checked for annotated fields (@Argument, @Option). These fields are populated from the command arguments before the action is called. Any class implementing Action must have a no argument constructor. This is necessary so the help generator can instantiate the class and get the default values.

            Map<String, Set<String>> commands = new TreeMap<String, Set<String>>();


            String commandSuffix = FORMAT_DOCBX.equals(format) ? "xml" : "conf"; 
            for (Class<?> clazz : classes) {
                try {
                    Action action = (Action) clazz.newInstance();
                    ActionMetaData meta = new ActionMetaDataFactory().create(action.getClass());
                    Command cmd = meta.getCommand();


                    // skip the *-help command
                    if (cmd.scope().equals("*")) continue;

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            Map<String, Set<String>> commands = new TreeMap<String, Set<String>>();


            String commandSuffix = FORMAT_DOCBX.equals(format) ? "xml" : "conf"; 
            for (Class<?> clazz : classes) {
                try {
                    Action action = (Action) clazz.newInstance();
                    ActionMetaData meta = new ActionMetaDataFactory().create(action.getClass());
                    Command cmd = meta.getCommand();


                    // skip the *-help command
                    if (cmd.scope().equals("*")) continue;

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        }


    }


    public Action createNewAction() {
        Action action = (Action) blueprintContainer.getComponentInstance(actionId);
        if (action instanceof BlueprintContainerAware) {
            ((BlueprintContainerAware) action).setBlueprintContainer(blueprintContainer);
        }
        if (action instanceof BundleContextAware) {
            BundleContext context = (BundleContext) blueprintContainer.getComponentInstance("blueprintBundleContext");

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import org.apache.karaf.shell.commands.CommandWithAction;


public abstract class AbstractCommand implements CommandWithAction {


    public Object execute(CommandSession session, List<Object> arguments) throws Exception {
        Action action = createNewAction();
        try {
            if (getPreparator().prepare(action, session, arguments)) {
                return action.execute(session);
            } else {
                return null;
            }
        } finally {
          releaseAction(action);

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            for (int i = 0, size = arguments.size(); i < size; i++) {
                Completer argCompleter = NullCompleter.INSTANCE;
                Method method = methods.get(i);
                if (method != null) {
                    // lets invoke the method
                    Action action = function.createNewAction();
                    try {
                        Object value = method.invoke(action);
                        if (value instanceof String[]) {
                            argCompleter = new StringsCompleter((String[]) value);
                        } else if (value instanceof Collection) {

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            for (int i = 0, size = arguments.size(); i < size; i++) {
                Completer argCompleter = NullCompleter.INSTANCE;
                Method method = methods.get(i);
                if (method != null) {
                    // lets invoke the method
                    Action action = function.createNewAction();
                    try {
                        Object value = method.invoke(action);
                        if (value instanceof String[]) {
                            argCompleter = new StringsCompleter((String[]) value);
                        } else if (value instanceof Collection) {

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            Map<String, Set<String>> commands = new TreeMap<String, Set<String>>();


            for (Class clazz : classes) {
                try {
                    Action action = (Action) clazz.newInstance();
                    ActionMetaData meta = new ActionMetaDataFactory().create(action.getClass());
                    String help = printHelp(action, meta, format, includeHelpOption);
                    Command cmd = meta.getCommand();
                    File output = null;


                    // skip the *-help command

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import org.apache.karaf.shell.commands.CommandWithAction;


public abstract class AbstractCommand implements CommandWithAction {


    public Object execute(CommandSession session, List<Object> arguments) throws Exception {
        Action action = createNewAction();
        try {
            if (getPreparator().prepare(action, session, arguments)) {
                return action.execute(session);
            } else {
                return null;
            }
        } finally {
          releaseAction(action);

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Related Classes of org.apache.karaf.shell.commands.Action

org.apache.karaf.shell.commands.basic.AbstractCommand

org.apache.karaf.shell.console.commands.BlueprintCommand

org.apache.karaf.shell.console.completer.ArgumentCompleter

org.apache.karaf.tooling.commands.GenerateHelpMojo

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