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81 lines
2.7 KiB
81 lines
2.7 KiB
/**
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* MonitorHandler
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* Copyright 2014 by Sebastian Gaebel
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* First released 15.05.2014 at http://yacy.net
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*
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* $LastChangedDate$
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* $LastChangedRevision$
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* $LastChangedBy$
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program in the file lgpl21.txt
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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package net.yacy.http;
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import java.io.IOException;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import net.yacy.cora.protocol.ConnectionInfo;
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import net.yacy.cora.protocol.Domains;
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import org.eclipse.jetty.io.Connection;
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import org.eclipse.jetty.server.Request;
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import org.eclipse.jetty.server.handler.AbstractHandler;
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public class MonitorHandler extends AbstractHandler {
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private final Connection.Listener remover = new Connection.Listener() {
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@Override
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public void onClosed(Connection c) {
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ConnectionInfo.removeServerConnection(c.hashCode());
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}
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@Override
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public void onOpened(Connection c) {
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}
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};
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@Override
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public void handle(String target, Request baseRequest, HttpServletRequest request,
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HttpServletResponse response) throws IOException, ServletException {
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final Connection connection = baseRequest.getHttpChannel().getEndPoint().getConnection();
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final ConnectionInfo info = new ConnectionInfo(
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baseRequest.getProtocol(),
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baseRequest.getRemoteAddr() + ":" + baseRequest.getRemotePort(),
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baseRequest.getMethod() + " " + baseRequest.getUri().getPathAndParam(),
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connection.hashCode(),
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baseRequest.getTimeStamp(),
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-1);
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if (ConnectionInfo.getServerConnections().contains(info)) {
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ConnectionInfo.removeServerConnection(info);
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} else {
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connection.addListener(remover);
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}
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ConnectionInfo.addServerConnection(info);
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if (ConnectionInfo.isServerCountReached()) {
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if (Domains.isLocal(baseRequest.getRemoteAddr(), baseRequest.getRemoteInetSocketAddress().getAddress())) return;
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response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE,"max. server connections reached (increase /PerformanceQueues_p.html -> httpd Session Pool).");
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baseRequest.setHandled(true);
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}
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}
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}
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