/*
 *  Copyright 2008 Hippo.
 *
 *  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 org.hippoecm.tools.cli.commands;

import java.util.Iterator;
import java.util.Map;

import org.hippoecm.tools.cli.Command;
import org.hippoecm.tools.cli.JcrWrapper;

/**
 * List child nodes of current node.
 */
public class NamespaceList implements Command {

    /**
     * {@inheritDoc}
     */
    public final String getCommand() {
        return "namespacelist";
    }

    /**
     * {@inheritDoc}
     */
    public final String[] getAliases() {
        return new String[] { "listnamespaces" };
    }

    /**
     * {@inheritDoc}
     */
    public final String usage() {
        return "namespacelist";
    }

    /**
     * {@inheritDoc}
     */
    public final String help() {
        return "list registered namespaces";
    }

    /**
     * {@inheritDoc}
     */
    public final boolean execute(final String[] args) {
        Map<String, String> namespaces = JcrWrapper.getNamespaces();
        System.out.printf("%-30s%-30s\n", "Prefix", "URI");
        System.out.printf("%-30s%-30s\n", "--------------------", "--------------------");
        for (Iterator<Map.Entry<String, String>> iter = namespaces.entrySet().iterator(); iter.hasNext();) {
            Map.Entry<String, String> entry = (Map.Entry<String, String>) iter.next();
            System.out.printf("%-30s%-30s\n", entry.getValue(), entry.getKey());
        }
        System.out.printf("%-30s%-30s\n", "--------------------", "--------------------");
        return true;

    }
}