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/**
 *
 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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 library.  If not, see .
 * 
 **/
package com.allaire.cfx;

import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;

import lucee.loader.engine.CFMLEngineFactory;
import lucee.runtime.type.Collection.Key;
import lucee.runtime.type.Struct;

/**
 * Implementation of the Debug Request
 */
public class DebugRequest implements Request {

	private final Struct attributes;
	private final Query query;
	private final Struct settings;

	public DebugRequest(final Hashtable attributes) {
		this(attributes, null, null);
	}

	public DebugRequest(final Hashtable attributes, final Query query) {
		this(attributes, query, null);
	}

	public DebugRequest(final Hashtable attributes, final Query query, final Hashtable settings) {
		this.attributes = toStruct(attributes);
		this.query = query;
		this.settings = toStruct(settings);
	}

	/**
	 * @see com.allaire.cfx.Request#attributeExists(java.lang.String)
	 */
	@Override
	public boolean attributeExists(final String key) {
		return attributes.containsKey(key);
	}

	@Override
	public boolean debug() {
		final Object o = attributes.get("debug", Boolean.FALSE);
		return CFMLEngineFactory.getInstance().getCastUtil().toBooleanValue(o, false);
	}

	@Override
	public String getAttribute(final String key, final String defaultValue) {
		return CFMLEngineFactory.getInstance().getCastUtil().toString(attributes.get(key, defaultValue), defaultValue);
	}

	@Override
	public String getAttribute(final String key) {
		return getAttribute(key, "");
	}

	@Override
	public String[] getAttributeList() {
		final Iterator it = attributes.keyIterator();
		final List arr = new ArrayList();
		while (it.hasNext())
			arr.add(it.next().getString());
		return arr.toArray(new String[arr.size()]);
	}

	@Override
	public int getIntAttribute(final String key, final int defaultValue) {
		final Object o = attributes.get(key, null);
		if (o == null) return defaultValue;
		return (int) CFMLEngineFactory.getInstance().getCastUtil().toDoubleValue(o, defaultValue);
	}

	@Override
	public int getIntAttribute(final String key) throws NumberFormatException {
		return getIntAttribute(key, -1);
	}

	@Override
	public Query getQuery() {
		return query;
	}

	@Override
	public String getSetting(final String key) {
		return settings == null ? "" : CFMLEngineFactory.getInstance().getCastUtil().toString(settings.get(key, ""), "");
	}

	/**
	 * @param hashTable a Hashtable to a Struct
	 * @return casted struct
	 */
	private static Struct toStruct(final Hashtable hashTable) {
		if (hashTable == null) return null;

		final Enumeration e = hashTable.keys();
		final Struct sct = CFMLEngineFactory.getInstance().getCreationUtil().createStruct();
		while (e.hasMoreElements()) {
			final Object key = e.nextElement();
			sct.setEL(key.toString(), hashTable.get(key));
		}
		return sct;
	}
}