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com.aspectran.shell.command.builtins.AspectCommand Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2022 The Aspectran Project
*
* Licensed 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 com.aspectran.shell.command.builtins;
import com.aspectran.core.component.aspect.AspectRuleRegistry;
import com.aspectran.core.context.rule.AspectRule;
import com.aspectran.core.context.rule.converter.RulesToParameters;
import com.aspectran.core.util.apon.AponWriter;
import com.aspectran.core.util.apon.Parameters;
import com.aspectran.shell.command.AbstractCommand;
import com.aspectran.shell.command.CommandRegistry;
import com.aspectran.shell.command.option.Option;
import com.aspectran.shell.command.option.ParsedOptions;
import com.aspectran.shell.console.Console;
import com.aspectran.shell.service.ShellService;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
/**
* Change the active state of an Aspect or view the list of registered Aspect.
*/
public class AspectCommand extends AbstractCommand {
private static final String NAMESPACE = "builtins";
private static final String COMMAND_NAME = "aspect";
private final CommandDescriptor descriptor = new CommandDescriptor();
public AspectCommand(CommandRegistry registry) {
super(registry);
addOption(Option.builder("l")
.longName("list")
.hasValues()
.optionalValue()
.valueName("keywords")
.desc("Print list of all aspects or those filtered by given keywords")
.build());
addOption(Option.builder("d")
.longName("detail")
.hasValues()
.optionalValue()
.valueName("aspect_id")
.desc("Print detailed information for the aspect")
.build());
addOption(Option.builder("enable")
.hasValues()
.valueName("aspect_id")
.desc("Enable an aspect with a given name")
.build());
addOption(Option.builder("disable")
.hasValues()
.valueName("aspect_id")
.desc("Disable an aspect with a given name")
.build());
addOption(Option.builder("h")
.longName("help")
.desc("Display help for this command")
.build());
}
@Override
public void execute(ParsedOptions options, Console console) throws Exception {
ShellService service = getService();
if (options.hasOption("help")) {
printHelp(console);
} else if (options.hasOption("list")) {
String[] keywords = options.getValues("list");
listAspects(service, console, keywords);
} else if (options.hasOption("detail")) {
String[] aspectIds = options.getValues("detail");
describeAspectRule(service, console, aspectIds);
} else if (options.hasOption("enable")) {
String[] aspectIds = options.getValues("enable");
changeAspectActiveState(service, console, aspectIds, false);
} else if (options.hasOption("disable")) {
String[] aspectIds = options.getValues("disable");
changeAspectActiveState(service, console, aspectIds, true);
} else {
printQuickHelp(console);
}
}
private void listAspects(ShellService service, Console console, String[] keywords) {
AspectRuleRegistry aspectRuleRegistry = service.getActivityContext().getAspectRuleRegistry();
Collection aspectRules = aspectRuleRegistry.getAspectRules();
console.writeLine("-%4s-+-%-45s-+-%-8s-+-%-8s-", "----", "---------------------------------------------",
"--------", "--------");
console.writeLine(" %4s | %-45s | %-8s | %-8s ", "No.", "Aspect ID", "Isolated", "Enabled");
console.writeLine("-%4s-+-%-45s-+-%-8s-+-%-8s-", "----", "---------------------------------------------",
"--------", "--------");
int num = 0;
for (AspectRule aspectRule : aspectRules) {
if (keywords != null) {
boolean exists = false;
for (String keyw : keywords) {
if (aspectRule.getId().toLowerCase().contains(keyw.toLowerCase())) {
exists = true;
break;
}
}
if (!exists) {
continue;
}
}
console.write("%5d | %-45s ", ++num, aspectRule.getId());
console.write("|");
if (aspectRule.isIsolated()) {
console.setStyle("YELLOW");
}
console.write(" %-8s ", aspectRule.isIsolated());
console.styleOff();
console.write("|");
if (!aspectRule.isIsolated()) {
if (aspectRule.isDisabled()) {
console.setStyle("RED");
} else {
console.setStyle("BLUE");
}
}
console.writeLine(" %-8s ", !aspectRule.isDisabled());
console.styleOff();
}
if (num == 0) {
console.writeLine("%33s %s", " ", "No Data");
}
console.writeLine("-%4s-+-%-45s-+-%-8s-+-%-8s-", "----", "---------------------------------------------",
"--------", "--------");
}
private void describeAspectRule(ShellService service, Console console, String[] aspectIds) throws IOException {
AspectRuleRegistry aspectRuleRegistry = service.getActivityContext().getAspectRuleRegistry();
Collection aspectRules;
if (aspectIds == null || aspectIds.length == 0) {
aspectRules = aspectRuleRegistry.getAspectRules();
} else {
aspectRules = new ArrayList<>();
for (String aspectId : aspectIds) {
AspectRule aspectRule = aspectRuleRegistry.getAspectRule(aspectId);
if (aspectRule == null) {
try {
int num = Integer.parseInt(aspectId) - 1;
aspectRule = aspectRuleRegistry.getAspectRules().toArray(new AspectRule[0])[num];
} catch (Exception e) {
// ignore
}
}
if (aspectRule == null) {
console.writeError("Unknown aspect: " + aspectId);
return;
}
aspectRules.add(aspectRule);
}
}
int count = 0;
for (AspectRule aspectRule : aspectRules) {
Parameters aspectParameters = RulesToParameters.toAspectParameters(aspectRule);
if (count == 0) {
console.writeLine("----------------------------------------------------------------------------");
}
AponWriter aponWriter = new AponWriter(console.getWriter()).nullWritable(false);
aponWriter.write(aspectParameters);
console.writeLine("----------------------------------------------------------------------------");
count++;
}
}
private void changeAspectActiveState(ShellService service, Console console, String[] aspectIds, boolean disabled) {
AspectRuleRegistry aspectRuleRegistry = service.getActivityContext().getAspectRuleRegistry();
List aspectRules = new ArrayList<>();
for (String aspectId : aspectIds) {
AspectRule aspectRule = aspectRuleRegistry.getAspectRule(aspectId);
if (aspectRule == null) {
console.writeError("Unknown aspect: " + aspectId);
return;
}
if (aspectRule.isIsolated()) {
console.writeError("Can not be disabled or enabled for isolated Aspect '" + aspectId + "'.");
return;
}
aspectRules.add(aspectRule);
}
for (AspectRule aspectRule : aspectRules) {
if (disabled) {
if (aspectRule.isDisabled()) {
console.writeLine("Aspect '" + aspectRule.getId() + "' is already inactive.");
} else {
aspectRule.setDisabled(true);
console.writeLine("Aspect '" + aspectRule.getId() + "' is now inactive.");
}
} else {
if (!aspectRule.isDisabled()) {
console.writeLine("Aspect '" + aspectRule.getId() + "' is already active.");
} else {
aspectRule.setDisabled(false);
console.writeLine("Aspect '" + aspectRule.getId() + "' is now active.");
}
}
}
}
@Override
public Descriptor getDescriptor() {
return descriptor;
}
private static class CommandDescriptor implements Descriptor {
@Override
public String getNamespace() {
return NAMESPACE;
}
@Override
public String getName() {
return COMMAND_NAME;
}
@Override
public String getDescription() {
return "Show registered aspects, or disable or enable them";
}
@Override
public String getUsage() {
return null;
}
}
}
