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// --- BEGIN COPYRIGHT BLOCK ---
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2012 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package com.netscape.cmstools.cli;
import java.util.LinkedHashMap;
import java.util.Map;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.PosixParser;
import org.apache.commons.lang.StringUtils;
import com.netscape.certsrv.client.PKIClient;
/**
* @author Endi S. Dewata
*/
public class CLI {
public static boolean verbose;
public static CommandLineParser parser = new PosixParser();
public static HelpFormatter formatter = new HelpFormatter();
public String name;
public String description;
public CLI parent;
public Options options = new Options();
public Map<String, CLI> modules = new LinkedHashMap<String, CLI>();
public PKIClient client;
public CLI(String name, String description) {
this(name, description, null);
}
public CLI(String name, String description, CLI parent) {
this.name = name;
this.description = description;
this.parent = parent;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getFullName() {
if (parent == null) {
return name;
} else {
return parent.getName() + "-" + name;
}
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public void addModule(CLI module) {
modules.put(module.getName(), module);
}
public CLI getModule(String name) {
return modules.get(name);
}
public PKIClient getClient() {
return client;
}
public Object getClient(String name) {
return null;
}
public void printHelp() {
System.out.println("Commands:");
int leftPadding = 1;
int rightPadding = 25;
for (CLI module : modules.values()) {
String label = getFullName() + "-" + module.getName();
int padding = rightPadding - leftPadding - label.length();
if (padding < 1)
padding = 1;
System.out.print(StringUtils.repeat(" ", leftPadding));
System.out.print(label);
System.out.print(StringUtils.repeat(" ", padding));
System.out.println(module.getDescription());
}
}
public void execute(String[] args) throws Exception {
if (args.length == 0) {
printHelp();
System.exit(1);
}
String command = args[0];
String moduleName;
String moduleCommand;
// If a command contains a '-' sign it will be
// split into module name and module command.
// Otherwise it's a single command.
int i = command.indexOf('-');
if (i >= 0) { // <module name>-<module command>
moduleName = command.substring(0, i);
moduleCommand = command.substring(i+1);
} else { // <command>
moduleName = command;
moduleCommand = null;
}
// get command module
if (verbose) System.out.println("Module: " + moduleName);
CLI module = getModule(moduleName);
if (module == null) {
throw new Error("Invalid module \"" + moduleName + "\".");
}
// prepare module arguments
String[] moduleArgs;
if (moduleCommand != null) {
moduleArgs = new String[args.length];
moduleArgs[0] = moduleCommand;
System.arraycopy(args, 1, moduleArgs, 1, args.length-1);
} else {
moduleArgs = new String[args.length-1];
System.arraycopy(args, 1, moduleArgs, 0, args.length-1);
}
module.execute(moduleArgs);
}
public static boolean isVerbose() {
return verbose;
}
public static void setVerbose(boolean verbose) {
CLI.verbose = verbose;
}
}
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