TimeoutInputStream.java

/*
 * GovWay - A customizable API Gateway 
 * https://govway.org
 * 
 * Copyright (c) 2005-2025 Link.it srl (https://link.it). 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3, as published by
 * the Free Software Foundation.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package org.openspcoop2.utils;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * TimeoutInputStrem
 *
 *
 * @author Poli Andrea (apoli@link.it)
 * @author $Author$
 * @version $Rev$, $Date$
 */
public class TimeoutInputStream extends FilterInputStream {

    public static final MapKey<String> EXCEPTION_KEY = Map.newMapKey("TimeoutIOException");
    public static final MapKey<String> ERROR_MSG_KEY = Map.newMapKey("TimeoutInputStream");
    public static final String ERROR_MSG = "Read timed out";
    
    public TimeoutInputStream(InputStream is, int timeoutMs) throws IOException {
        this(is, timeoutMs, null, null);
    }
    public TimeoutInputStream(InputStream is, int timeoutMs, Map<Object> ctx, ITimeoutNotifier notifier) throws IOException {
        this(is, timeoutMs, null, ctx, notifier);
    }
    public TimeoutInputStream(InputStream is, int timeoutMs, String prefixError, Map<Object> ctx, ITimeoutNotifier notifier) throws IOException {
        super(new TimeoutInputStreamEngine(is, timeoutMs, prefixError, ctx, notifier));
    }
    
    public InputStream getIsWrapped() {
        InputStream is = super.in;
        if(is instanceof TimeoutInputStreamEngine) {
            return ((TimeoutInputStreamEngine)is).getIsWrapped();
        }
        return is;
    }
    
    public void disableCheckTimeout() {
        InputStream is = super.in;
        if(is instanceof TimeoutInputStreamEngine) {
            ((TimeoutInputStreamEngine)is).disableCheckTimeout();
        }
    }
    public void updateThreshold(int timeoutMs) throws IOException {
        InputStream is = super.in;
        if(is instanceof TimeoutInputStreamEngine) {
            ((TimeoutInputStreamEngine)is).updateThreshold(timeoutMs);
        }
    }
    public void updateContext(Map<Object> ctx) {
        InputStream is = super.in;
        if(is instanceof TimeoutInputStreamEngine) {
            ((TimeoutInputStreamEngine)is).updateContext(ctx);
        }
    }
    public void updateNotifier(ITimeoutNotifier notifier) {
        InputStream is = super.in;
        if(is instanceof TimeoutInputStreamEngine) {
            ((TimeoutInputStreamEngine)is).updateNotifier(notifier);
        }
    }

}