JSONToken.java

//	---------------------------------------------------------------------------
//	jWebSocket - JSON Token Implementation
//	Copyright (c) 2010 Alexander Schulze, Innotrade GmbH
//	---------------------------------------------------------------------------
//	This program is free software; you can redistribute it and/or modify it
//	under the terms of the GNU Lesser General Public License as published by the
//	Free Software Foundation; either version 3 of the License, or (at your
//	option) any later version.
//	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 Lesser General Public License for
//	more details.
//	You should have received a copy of the GNU Lesser General Public License along
//	with this program; if not, see <http://www.gnu.org/licenses/lgpl.html>.
//	---------------------------------------------------------------------------
package org.jwebsocket.token;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import javolution.util.FastMap;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

/**
 * A token is ...
 * @author aschulze
 */
public class JSONToken extends BaseToken implements Token {

	private JSONObject mData = null;

	/**
	 * Creates a new empty instance of a token.
	 * The token does not contain any items.
	 */
	public JSONToken() {
		mData = new JSONObject();
	}

	/**
	 *
	 * @param aType
	 */
	public JSONToken(String aType) {
		mData = new JSONObject();
		setType(aType);
	}

	/**
	 *
	 * @param aJSON
	 */
	public JSONToken(JSONObject aJSON) {
		mData = aJSON;
	}

	/**
	 *
	 * @param aNS
	 * @param aType
	 */
	public JSONToken(String aNS, String aType) {
		mData = new JSONObject();
		setNS(aNS);
		setType(aType);
	}

	@Override
	public void clear() {
		// TODO: implement clear for JSON token
	}

	@Override
	public void set(ITokenizable aTokenizable) {
	}

	/**
	 *
	 *
	 * @return
	 */
	@Override
	public Map getMap() {
		// TODO: implement getMap for JSON token
		return null;
	}

	/**
	 *
	 * @param aJSON
	 */
	public void setJSONObject(JSONObject aJSON) {
		mData = aJSON;
	}

	/**
	 *
	 *
	 * @return
	 */
	public JSONObject getJSONObject() {
		return mData;
	}

	private Object getValue(Object aValue) {
		if (aValue instanceof JSONToken) {
			aValue = ((JSONToken) aValue).getJSONObject();
		} else if (aValue instanceof Collection) {
			JSONArray lJA = new JSONArray();
			for (Object lItem : (Collection) aValue) {
				lJA.put(getValue(lItem));
			}
			aValue = lJA;
		} else if (aValue instanceof Map) {
			JSONObject lJO = new JSONObject();
			for (Entry<Object, Object> lItem : ((Map<Object, Object>) aValue).entrySet()) {
				try {
					lJO.put(lItem.getKey().toString(), getValue(lItem.getValue()));
				} catch (JSONException lEx) {
				}
			}
			aValue = lJO;
		} else if (aValue instanceof Object[]) {
			JSONArray lJA = new JSONArray();
			Object[] lOA = (Object[]) aValue;
			for (int lIdx = 0; lIdx < lOA.length; lIdx++) {
				lJA.put(getValue(lOA[lIdx]));
			}
			aValue = lJA;
		}
		return aValue;
	}

	/**
	 * puts a new key/value pair into the token, in other words it adds a
	 * new item to the token.
	 * @param aKey key of the the token item.
	 * @param aValue value of the token item.
	 */
	public void put(String aKey, Object aValue) {
		try {
			mData.put(aKey, getValue(aValue));
		} catch (JSONException lEx) {
			// TODO: handle exception
		}
	}

	/**
	 *
	 * @param aKey
	 * @return
	 */
	public Object get(String aKey) {
		try {
			return mData.get(aKey);
		} catch (JSONException lEx) {
			return null;
		}
	}

	/**
	 *
	 * @param aKey
	 * @return
	 */
	@Override
	public void remove(String aKey) {
		mData.remove(aKey);
	}

	/**
	 *
	 * @param aKey
	 * @param aDefault
	 * @return
	 */
	@Override
	public String getString(String aKey, String aDefault) {
		String lResult;
		try {
			lResult = mData.getString(aKey);
		} catch (JSONException lEx) {
			lResult = aDefault;
		}
		return lResult;
	}

	/**
	 *
	 * @param aKey
	 */
	@Override
	public void setString(String aKey, String aValue) {
		try {
			mData.put(aKey, aValue);
		} catch (JSONException lEx) {
			// TODO: handle exception
		}
	}

	/**
	 *
	 * @param aKey
	 * @return
	 */
	@Override
	public String getString(String aKey) {
		return getString(aKey, null);
	}

	/**
	 *
	 * @param aKey
	 * @param aDefault
	 * @return
	 */
	@Override
	public Integer getInteger(String aKey, Integer aDefault) {
		Integer lResult;
		try {
			lResult = mData.getInt(aKey);
		} catch (JSONException lEx) {
			lResult = aDefault;
		}
		return lResult;
	}

	/**
	 *
	 * @param aKey
	 * @return
	 */
	@Override
	public Integer getInteger(String aKey) {
		return getInteger(aKey, null);
	}

	@Override
	public void setInteger(String aKey, Integer aValue) {
		try {
			mData.put(aKey, aValue);
		} catch (JSONException lEx) {
			// TODO: handle exception
		}
	}

	/**
	 *
	 * @param aKey
	 * @param aDefault
	 * @return
	 */
	@Override
	public Double getDouble(String aKey, Double aDefault) {
		Double lResult;
		try {
			lResult = mData.getDouble(aKey);
		} catch (JSONException lEx) {
			lResult = aDefault;
		}
		return lResult;
	}

	/**
	 *
	 * @param aKey
	 * @return
	 */
	@Override
	public Double getDouble(String aKey) {
		return getDouble(aKey, null);
	}

	@Override
	public void setDouble(String aKey, Double aValue) {
		try {
			mData.put(aKey, aValue);
		} catch (JSONException lEx) {
			// TODO: handle exception
		}
	}

	/**
	 *
	 * @param aKey
	 * @param aDefault
	 * @return
	 */
	@Override
	public Boolean getBoolean(String aKey, Boolean aDefault) {
		Boolean lResult;
		try {
			lResult = mData.getBoolean(aKey);
		} catch (JSONException lEx) {
			lResult = aDefault;
		}
		return lResult;
	}

	/**
	 *
	 * @param aArg
	 * @return
	 */
	@Override
	public Boolean getBoolean(String aArg) {
		return getBoolean(aArg, null);
	}

	/**
	 *
	 * @param aKey
	 */
	@Override
	public void setBoolean(String aKey, Boolean aValue) {
		try {
			mData.put(aKey, aValue);
		} catch (JSONException lEx) {
			// TODO: handle exception
		}
	}

	/**
	 *
	 * @param aKey
	 * @param aDefault
	 * @return
	 */
	@Override
	public List getList(String aKey, List aDefault) {
		// TODO: Implement this
		return null;
	}

	/**
	 *
	 * @param aKey
	 * @return
	 */
	@Override
	public List getList(String aKey) {
		// TODO: Implement this
		return null;
	}

	/**
	 *
	 * @param aKey
	 * @param aList
	 */
	@Override
	public void setList(String aKey, List aList) {
		try {
			mData.put(aKey, aList);
		} catch (JSONException lEx) {
			// TODO: handle exception
		}
	}

	/**
	 *
	 * @param aKey
	 * @param aTokenizable
	 */
	@Override
	public void setToken(String aKey, ITokenizable aTokenizable) {
	}

	/**
	 *
	 * @param aKey
	 * @param aToken
	 */
	@Override
	public void setToken(String aKey, Token aToken) {
	}

	/**
	 *
	 * @param aKey
	 * @return
	 */
	@Override
	public Token getToken(String aKey) {
		return null;
	}

	/**
	 *
	 * @param aKey
	 * @param aDefault
	 * @return
	 */
	@Override
	public Token getToken(String aKey, Token aDefault) {
		return null;
	}

	/**
	 *
	 * @param aKey
	 * @param aDefault
	 * @return
	 */
	@Override
	public Map getMap(String aKey, Map aDefault) {
		// TODO: Implement this
		return null;
	}

	/**
	 *
	 * @param aKey
	 * @return
	 */
	@Override
	public Map getMap(String aKey) {
		Map lMap = new FastMap<String, Object>();
		Iterator<String> lIterator = mData.keys();
		while (lIterator.hasNext()) {
			String lKey = (String)lIterator.next();
			try{
				Object lVal = mData.get(lKey);
				lMap.put(lKey, lVal);
			} catch(Exception lEx) {
				// TODO: process exception
			}
		}
		return lMap;
	}

	/**
	 *
	 * @param aKey
	 * @param aList
	 */
	@Override
	public void setMap(String aKey, Map aMap) {
		try {
			mData.put(aKey, aMap);
		} catch (JSONException lEx) {
			// TODO: handle exception
		}
	}

	/**
	 *
	 * @return
	 */
	@Override
	public String toString() {
		return mData.toString();
	}

	/**
	 *
	 * @return
	 */
	@Override
	public Iterator<String> getKeyIterator() {
		return mData.keys();
	}

	/**
	 *
	 * @param aKey
	 * @return
	 */
	@Override
	public Object getObject(String aKey) {
		Object lObj = null;
		try {
			lObj = mData.get(aKey);
		} catch (Exception lEx) {
			// 
		}
		return lObj;
	}
}