de.christianseipl.utilities.maputils.MapPrinting.java Source code

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Here is the source code for de.christianseipl.utilities.maputils.MapPrinting.java

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/*******************************************************************************
 * Copyright 2009 Christian Seipl
 * 
 * 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 de.christianseipl.utilities.maputils;

import java.util.Collection;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;

import org.apache.commons.collections15.MultiMap;

/**
 * @author Christian Seipl
 *
 */
public class MapPrinting {

    public static <K, V> void printOneDimensionalMap(String _header, Map<K, V> _map) {
        System.out.println(_header);
        for (Entry<K, V> entry : _map.entrySet()) {
            System.out.println(String.format("%20s\t%20s", entry.getKey().toString(), entry.getValue().toString()));
        }
        System.out.println();
    }

    public static <K, L, V> void printTwoDimensionalMap(String _header, Map<K, Map<L, V>> _map) {
        System.out.println(_header);
        for (Entry<K, Map<L, V>> first : _map.entrySet()) {
            System.out.println(first.getKey().toString());
            for (Entry<L, V> second : first.getValue().entrySet()) {
                System.out.println(String.format("%20s\t%20s\t%20s", first.getKey().toString(),
                        second.getKey().toString(), second.getValue().toString()));
            }
            System.out.println();
        }
        System.out.println();
    }

    public static <K, L, M, V> void printThreeDimensionalMap(String _header, Map<K, Map<L, Map<M, V>>> _map) {
        System.out.println(_header);
        for (Entry<K, Map<L, Map<M, V>>> first : _map.entrySet()) {
            System.out.println(first.getKey().toString());
            for (Entry<L, Map<M, V>> second : first.getValue().entrySet()) {
                System.out.println(
                        String.format("%20s\t%20s", first.getKey().toString(), second.getKey().toString()));
                for (Entry<M, V> third : second.getValue().entrySet()) {
                    System.out.println(String.format("%20s\t%20s\t%20s\t%20s", first.getKey().toString(),
                            second.getKey().toString(), third.getKey().toString(), third.getValue().toString()));

                }
                System.out.println();
            }
            System.out.println();
        }
        System.out.println();
    }

    public static <K> void printSet(String _header, Set<K> _set) {
        Object[] elements = _set.toArray();
        System.out.println(_header);
        System.out.printf("[ ");
        for (int i = 0; i < elements.length - 1; i++) {
            System.out.printf("%s, ", elements[i].toString());
        }
        if (elements.length > 0) {
            System.out.printf("%s ", elements[elements.length - 1].toString());
        }
        System.out.printf("]");
        System.out.println();
        System.out.println();
    }

    public static <K, V> void printMultiMap(String _header, MultiMap<K, V> _map) {
        printMapCollection(_header, _map.map());
    }

    public static <K, V> void printMapCollection(String _header, Map<K, ? extends Collection<V>> _map) {
        System.out.println(_header);
        for (Entry<K, ? extends Collection<V>> entry : _map.entrySet()) {
            System.out.printf("%20s\t", entry.getKey().toString());
            Object[] elements = entry.getValue().toArray();
            System.out.printf("[ ");
            for (int i = 0; i < elements.length - 1; i++) {
                System.out.printf("%s, ", elements[i].toString());
            }
            if (elements.length > 0) {
                System.out.printf("%s ", elements[elements.length - 1].toString());
            }
            System.out.printf("]");
            System.out.println();
        }
        System.out.println();
        System.out.println();
    }

}