org.springside.examples.showcase.demos.utilities.xml.HouseMapAdapter.java Source code

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Here is the source code for org.springside.examples.showcase.demos.utilities.xml.HouseMapAdapter.java

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/*******************************************************************************
 * Copyright (c) 2005, 2014 springside.github.io
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 *******************************************************************************/
package org.springside.examples.showcase.demos.utilities.xml;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlType;
import javax.xml.bind.annotation.XmlValue;
import javax.xml.bind.annotation.adapters.XmlAdapter;

import org.springside.examples.showcase.demos.utilities.xml.HouseMapAdapter.HouseMap.HouseEntry;

import com.google.common.collect.Maps;

/**
 * Map<String,String> houses?xml,
 * Adapter--HouseMapAdapter, List<HouseEntry> Wrapper--HouseMap, MapEntry--HouseEntry.
 * ??
 * 
 * <pre>
 * <houses>
 *       <house key="bj">house1</item>
 *       <hosue key="gz">house2</item>
 * </houses>
 * </pre>
 * 
 * @author calvin
 */
public class HouseMapAdapter extends XmlAdapter<HouseMapAdapter.HouseMap, Map<String, String>> {

    @Override
    public HouseMap marshal(Map<String, String> map) throws Exception {
        HouseMap houseMap = new HouseMap();
        for (Map.Entry<String, String> e : map.entrySet()) {
            houseMap.entries.add(new HouseEntry(e));
        }
        return houseMap;
    }

    @Override
    public Map<String, String> unmarshal(HouseMap houseMap) throws Exception {
        Map<String, String> map = Maps.newLinkedHashMap();
        for (HouseEntry e : houseMap.entries) {
            map.put(e.key, e.value);
        }
        return map;
    }

    /**
     * List<HouseEntry>Adapter.
     * 
     * @author calvin
     */
    @XmlType(name = "houses")
    public static class HouseMap {
        @XmlElement(name = "house")
        List<HouseEntry> entries = new ArrayList<HouseEntry>();

        /**
         * HouseMapEntry.
         */
        static class HouseEntry {
            @XmlAttribute
            String key;

            @XmlValue
            String value;

            public HouseEntry() {
            }

            public HouseEntry(Map.Entry<String, String> e) {
                key = e.getKey();
                value = e.getValue();
            }
        }
    }
}