net.gtaun.shoebill.util.config.MapConfiguration.java Source code

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Here is the source code for net.gtaun.shoebill.util.config.MapConfiguration.java

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/**
 * Copyright (C) 2012 MK124
 * Copyright (C) 2012 JoJLlmAn
 *
 * 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 net.gtaun.shoebill.util.config;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;

/**
 * 
 * 
 * @author MK124, JoJLlmAn
 */
public class MapConfiguration extends AbstractConfiguration implements Configuration {
    @SuppressWarnings("unchecked")
    private static void set(Map<String, Object> map, String path, Object value) {
        String[] childs = StringUtils.split(path, '.');

        Map<String, Object> node = map;
        for (int i = 0; i < childs.length - 1; i++) {
            Object obj = node.get(childs[i]);
            if (obj instanceof Map<?, ?> == false) {
                obj = new HashMap<>();
                node.put(childs[i], obj);
            }

            node = (Map<String, Object>) obj;
        }

        node.put(childs[childs.length - 1], value);
    }

    @SuppressWarnings("unchecked")
    public static Object get(Map<String, Object> map, String path) {
        String[] childs = StringUtils.split(path, '.');
        if (childs.length == 0)
            return map;

        Map<String, Object> node = map;
        for (int i = 0; i < childs.length - 1; i++) {
            Object obj = node.get(childs[i]);
            if (obj instanceof Map<?, ?> == false)
                return null;
            node = (HashMap<String, Object>) obj;
        }

        return node.get(childs[childs.length - 1]);
    }

    @SuppressWarnings("unchecked")
    public static void getKeyList(Collection<String> collection, String path, Map<String, Object> map) {
        if (map == null)
            return;
        try {
            for (Entry<String, Object> entry : map.entrySet()) {
                Object obj = entry.getValue();
                String curPath = path.isEmpty() ? entry.getKey() : path + "." + entry.getKey();
                if (obj instanceof Map<?, ?> == false)
                    collection.add(curPath);
                else
                    getKeyList(collection, curPath, (Map<String, Object>) obj);
            }
        } catch (ClassCastException e) {
        }
    }

    private Map<String, Object> root;
    private Map<String, Object> defRoot;

    public MapConfiguration() {
        this(null);
    }

    public MapConfiguration(Map<String, Object> root) {
        this(root, null);
    }

    public MapConfiguration(Map<String, Object> root, Map<String, Object> def) {
        setRoot((root != null) ? root : new HashMap<>());
        setDefaultRoot((def != null) ? def : new HashMap<>());
    }

    @Override
    public String toString() {
        return ToStringBuilder.reflectionToString(this, ToStringStyle.DEFAULT_STYLE);
    }

    public void setRoot(Map<String, Object> root) {
        this.root = root;
    }

    public void setDefaultRoot(Map<String, Object> def) {
        this.defRoot = def;
    }

    public Map<String, Object> getRoot() {
        return root;
    }

    @SuppressWarnings("unchecked")
    public Map<String, Object> getMap(String path) {
        return (Map<String, Object>) get(path);
    }

    public void setMap(String path, Map<String, Object> value) {
        set(path, value);
    }

    @Override
    public boolean contains(String path) {
        return get(path) != null;
    }

    @Override
    public Object get(String path) {
        return get(root, path);
    }

    @Override
    public void set(String path, Object value) {
        set(root, path, value);
    }

    @Override
    public Configuration getSection(String path) {
        return FilterConfiguration.pathPrefixConfiguration(this, path + '.');
    }

    @Override
    public Collection<String> getKeyList() {
        return getKeyList("");
    }

    @Override
    public Collection<String> getKeyList(String path) {
        List<String> list = new ArrayList<>();
        getKeyList(list, path, getMap(path));
        return list;
    }

    @Override
    public void setDefault(String path, Object value) {
        set(defRoot, path, value);
    }

    @Override
    public Object getDefault(String path) {
        return get(defRoot, path);
    }
}