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	/*
	* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code 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 General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/


	/*
	* The Original Code is HAT. The Initial Developer of the
	* Original Code is Bill Foote, with contributions from others
	* at JavaSoft/Sun.
	*/

	package com.sun.tools.hat.internal.server;

	import com.sun.tools.hat.internal.oql.*;

	/**
	* This handles Object Query Language (OQL) queries.
	*
	* @author A. Sundararajan
	*/

	class OQLQuery extends QueryHandler {

	public OQLQuery(OQLEngine engine) {
	this.engine = engine;
	}

	public void run() {
	startHtml("Object Query Language (OQL) query");
	String oql = null;
	if (query != null && !query.equals("")) {
	int index = query.indexOf("?query=");
	if (index != -1 && query.length() > 7) {
	oql = query.substring(index + 7);
	}
	}
	out.println("<p align='center'><table>");
	out.println("<tr><td><b>");
	out.println("<a href='/'>All Classes (excluding platform)</a>");
	out.println("</b></td>");
	out.println("<td><b><a href='/oqlhelp/'>OQL Help</a></b></td></tr>");
	out.println("</table></p>");
	out.println("<form action='/oql/' method='get'>");
	out.println("<p align='center'>");
	out.println("<textarea name='query' cols=80 rows=10>");
	if (oql != null) {
	println(oql);
	}
	out.println("</textarea>");
	out.println("</p>");
	out.println("<p align='center'>");
	out.println("<input type='submit' value='Execute'></input>");
	out.println("</p>");
	out.println("</form>");
	if (oql != null) {
	executeQuery(oql);
	}
	endHtml();
	}

	private void executeQuery(String q) {
	try {
	out.println("<table border='1'>");
	engine.executeQuery(q, new ObjectVisitor() {
	public boolean visit(Object o) {
	out.println("<tr><td>");
	try {
	out.println(engine.toHtml(o));
	} catch (Exception e) {
	printException(e);
	}
	out.println("</td></tr>");
	return false;
	}
	});
	out.println("</table>");
	} catch (OQLException exp) {
	printException(exp);
	}
	}

	private OQLEngine engine;
	}

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