+++ /dev/null
-/*
- * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.controller.netconf.cli;
-
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
-import java.io.IOException;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
-import jline.console.UserInterruptException;
-import jline.console.completer.Completer;
-import jline.console.completer.StringsCompleter;
-import org.opendaylight.controller.netconf.cli.commands.Command;
-import org.opendaylight.controller.netconf.cli.commands.CommandConstants;
-import org.opendaylight.controller.netconf.cli.commands.CommandDispatcher;
-import org.opendaylight.controller.netconf.cli.commands.CommandInvocationException;
-import org.opendaylight.controller.netconf.cli.commands.input.Input;
-import org.opendaylight.controller.netconf.cli.commands.input.InputDefinition;
-import org.opendaylight.controller.netconf.cli.commands.output.Output;
-import org.opendaylight.controller.netconf.cli.commands.output.OutputDefinition;
-import org.opendaylight.controller.netconf.cli.io.ConsoleContext;
-import org.opendaylight.controller.netconf.cli.io.ConsoleIO;
-import org.opendaylight.controller.netconf.cli.reader.ReadingException;
-import org.opendaylight.controller.netconf.cli.writer.OutFormatter;
-import org.opendaylight.controller.netconf.cli.writer.WriteException;
-import org.opendaylight.controller.netconf.cli.writer.Writer;
-import org.opendaylight.controller.netconf.cli.writer.impl.NormalizedNodeWriter;
-import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
-import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
-
-/**
- * The top level cli state that dispatches command executions
- */
-public class Cli implements Runnable {
- private final CommandDispatcher commandRegistry;
- private final CommandArgHandlerRegistry argumentHandlerRegistry;
- private final SchemaContextRegistry schemaContextRegistry;
- private final ConsoleIO consoleIO;
-
- public Cli(final ConsoleIO consoleIO, final CommandDispatcher commandRegistry,
- final CommandArgHandlerRegistry argumentHandlerRegistry, final SchemaContextRegistry schemaContextRegistry) {
- this.consoleIO = consoleIO;
- this.commandRegistry = commandRegistry;
- this.argumentHandlerRegistry = argumentHandlerRegistry;
- this.schemaContextRegistry = schemaContextRegistry;
- }
-
- @Override
- public void run() {
- try {
- consoleIO.writeLn("Cli is up, available commands:");
- final RootConsoleContext consoleContext = new RootConsoleContext(commandRegistry);
- consoleIO.enterContext(consoleContext);
- consoleIO.complete();
- consoleIO.writeLn("");
-
- while (true) {
- final String commandName = consoleIO.read();
- final Optional<Command> commandOpt = commandRegistry.getCommand(commandName);
-
- if (commandOpt.isPresent() == false) {
- continue;
- }
-
- final Command command = commandOpt.get();
- try {
- consoleIO.enterContext(command.getConsoleContext());
- final Output response = command.invoke(handleInput(command.getInputDefinition()));
- handleOutput(command, response);
- } catch (final CommandInvocationException e) {
- consoleIO.write(e.getMessage());
- } catch (final UserInterruptException e) {
- consoleIO.writeLn("Command " + command.getCommandId() + " was terminated.");
- } finally {
- consoleIO.leaveContext();
- }
-
- }
- } catch (final IOException e) {
- throw new RuntimeException("IO failure", e);
- }
- }
-
- private void handleOutput(final Command command, final Output response) {
- final OutputDefinition outputDefinition = command.getOutputDefinition();
-
- final Writer<DataSchemaNode> outHandler = argumentHandlerRegistry.getGenericWriter();
- if (outputDefinition.isEmpty()) {
- handleEmptyOutput(command, response);
- } else {
- handleRegularOutput(response, outputDefinition, outHandler);
- }
- }
-
- private void handleRegularOutput(final Output response, final OutputDefinition outputDefinition,
- final Writer<DataSchemaNode> outHandler) {
- final Map<DataSchemaNode, List<NormalizedNode<?, ?>>> unwrap = response.unwrap(outputDefinition);
-
- for (final DataSchemaNode schemaNode : unwrap.keySet()) {
- Preconditions.checkNotNull(schemaNode);
-
- try {
-
- // FIXME move custom writer to GenericWriter/Serializers ...
- // this checks only first level
- final Optional<Class<? extends Writer<DataSchemaNode>>> customReaderClassOpt = tryGetCustomHandler(schemaNode);
-
- if (customReaderClassOpt.isPresent()) {
- final Writer<DataSchemaNode> customReaderInstance = argumentHandlerRegistry
- .getCustomWriter(customReaderClassOpt.get());
- Preconditions.checkNotNull(customReaderInstance, "Unknown custom writer: %s",
- customReaderClassOpt.get());
- customReaderInstance.write(schemaNode, unwrap.get(schemaNode));
- } else {
- outHandler.write(schemaNode, unwrap.get(schemaNode));
- }
-
- } catch (final WriteException e) {
- throw new IllegalStateException("Unable to write value for: " + schemaNode.getQName() + " from: "
- + unwrap.get(schemaNode), e);
- }
- }
- }
-
- private void handleEmptyOutput(final Command command, final Output response) {
- try {
- new NormalizedNodeWriter(consoleIO, new OutFormatter()).write(null,
- Collections.<NormalizedNode<?, ?>>singletonList(response.getOutput()));
- } catch (final WriteException e) {
- throw new IllegalStateException("Unable to write value for: " + response.getOutput().getNodeType()
- + " from: " + command.getCommandId(), e);
- }
- }
-
- private Input handleInput(final InputDefinition inputDefinition) {
- List<NormalizedNode<?, ?>> allArgs = Collections.emptyList();
- try {
- if (!inputDefinition.isEmpty()) {
- allArgs = argumentHandlerRegistry.getGenericReader(schemaContextRegistry.getLocalSchemaContext()).read(
- inputDefinition.getInput());
- }
- } catch (final ReadingException e) {
- throw new IllegalStateException("Unable to read value for: " + inputDefinition.getInput().getQName(), e);
- }
-
- return new Input(allArgs);
- }
-
- // TODO move tryGet to GenericWriter, GenericReader has the same code
- private <T> Optional<Class<? extends T>> tryGetCustomHandler(final DataSchemaNode dataSchemaNode) {
-
- for (final UnknownSchemaNode unknownSchemaNode : dataSchemaNode.getUnknownSchemaNodes()) {
-
- if (isExtenstionForCustomHandler(unknownSchemaNode)) {
- final String argumentHandlerClassName = unknownSchemaNode.getNodeParameter();
- try {
- final Class<?> argumentClass = Class.forName(argumentHandlerClassName);
- // TODO add check before cast
- return Optional.<Class<? extends T>> of((Class<? extends T>) argumentClass);
- } catch (final ClassNotFoundException e) {
- throw new IllegalArgumentException("Unknown custom reader class " + argumentHandlerClassName
- + " for: " + dataSchemaNode.getQName());
- }
- }
- }
-
- return Optional.absent();
- }
-
- private boolean isExtenstionForCustomHandler(final UnknownSchemaNode unknownSchemaNode) {
- final QName qName = unknownSchemaNode.getExtensionDefinition().getQName();
- return qName.equals(CommandConstants.ARG_HANDLER_EXT_QNAME);
- }
-
- private static final class RootConsoleContext implements ConsoleContext {
-
- private final Completer completer;
-
- public RootConsoleContext(final CommandDispatcher commandRegistry) {
- completer = new CommandCompleter(commandRegistry);
- }
-
- @Override
- public Completer getCompleter() {
- return completer;
- }
-
- @Override
- public Optional<String> getPrompt() {
- return Optional.absent();
- }
-
- private class CommandCompleter extends StringsCompleter {
-
- private final CommandDispatcher commandRegistry;
-
- public CommandCompleter(final CommandDispatcher commandRegistry) {
- this.commandRegistry = commandRegistry;
- }
-
- @Override
- public int complete(final String buffer, final int cursor, final List<CharSequence> candidates) {
- getStrings().clear();
- getStrings().addAll(commandRegistry.getCommandIds());
- return super.complete(buffer, cursor, candidates);
- }
- }
- }
-
-}
Code Review / controller.git / blobdiff