/* * TeleStax, Open Source Cloud Communications Copyright 2012. * and individual contributors * by the @authors tag. See the copyright.txt in the distribution for a * full listing of individual contributors. * * This 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 software 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 software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.mobicents.protocols.ss7.cap.gap; import java.io.IOException; import javolution.xml.XMLFormat; import javolution.xml.stream.XMLStreamException; import org.mobicents.protocols.asn.AsnException; import org.mobicents.protocols.asn.AsnInputStream; import org.mobicents.protocols.asn.AsnOutputStream; import org.mobicents.protocols.asn.Tag; import org.mobicents.protocols.ss7.cap.api.CAPException; import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentException; import org.mobicents.protocols.ss7.cap.api.CAPParsingComponentExceptionReason; import org.mobicents.protocols.ss7.cap.api.gap.GapIndicators; import org.mobicents.protocols.ss7.cap.primitives.SequenceBase; /** * * @author <a href="mailto:bartosz.krok@pro-ids.com"> Bartosz Krok (ProIDS sp. z o.o.)</a> */ public class GapIndicatorsImpl extends SequenceBase implements GapIndicators { private static final String DURATION = "duration"; private static final String GAP_INTERVAL = "gapInterval"; public static final int _ID_Duration = 0; public static final int _ID_Gap_Interval = 1; private static int DEFAULT_VALUE = 0; private int duration; private int gapInterval; public GapIndicatorsImpl() { super("GapIndicators"); } public GapIndicatorsImpl(int duration, int gapInterval) { super("GapIndicators"); this.duration = duration; this.gapInterval = gapInterval; } public int getDuration() { return duration; } public int getGapInterval() { return gapInterval; } protected void _decode(AsnInputStream asnIS, int length) throws CAPParsingComponentException, IOException, AsnException { this.duration = 0; this.gapInterval = 0; boolean foundDuration = false; boolean foundGapInterval = false; AsnInputStream ais = asnIS.readSequenceStreamData(length); while (true) { if (ais.available() == 0) { break; } int tag = ais.readTag(); if (ais.getTagClass() == Tag.CLASS_CONTEXT_SPECIFIC) { switch (tag) { case _ID_Duration: { this.duration = (int) ais.readInteger(); if (this.duration < -2 || this.duration > 86400) { throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName + "-duration: possible value -2..86400, received=" + duration, CAPParsingComponentExceptionReason.MistypedParameter); } foundDuration = true; break; } case _ID_Gap_Interval: { this.gapInterval = (int) ais.readInteger(); if (this.gapInterval < -1 || this.gapInterval > 60000) { throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName + "-gapInterval: possible value -1..60000, received=" + gapInterval, CAPParsingComponentExceptionReason.MistypedParameter); } foundGapInterval = true; break; } default: { ais.advanceElement(); break; } } } else { ais.advanceElement(); } } if (!foundDuration) { throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName + ": duration parameter is not found", CAPParsingComponentExceptionReason.MistypedParameter); } if (!foundGapInterval) { throw new CAPParsingComponentException("Error while decoding " + _PrimitiveName + ": gapInterval parameter is not found", CAPParsingComponentExceptionReason.MistypedParameter); } } public void encodeData(AsnOutputStream asnOs) throws CAPException { try { if (this.duration < -2 || this.duration > 86400) { throw new CAPException("Error when encoding " + _PrimitiveName + ": duration must be -2..86400, supplied=" + duration); } asnOs.writeInteger(Tag.CLASS_CONTEXT_SPECIFIC, _ID_Duration, duration); if (this.gapInterval < -1 || this.gapInterval > 60000) { throw new CAPException("Error when encoding " + _PrimitiveName + ": gapInterval must be -1..60000, supplied=" + gapInterval); } asnOs.writeInteger(Tag.CLASS_CONTEXT_SPECIFIC, _ID_Gap_Interval, gapInterval); } catch (IOException e) { throw new CAPException("IOException when encoding " + _PrimitiveName + ": " + e.getMessage(), e); } catch (AsnException ex) { throw new CAPException("AsnException when encoding " + _PrimitiveName + ": " + ex.getMessage(), ex); } } protected static final XMLFormat<GapIndicatorsImpl> GAP_INDICATORS_XML = new XMLFormat<GapIndicatorsImpl>(GapIndicatorsImpl.class) { @Override public void read(javolution.xml.XMLFormat.InputElement xml, GapIndicatorsImpl gapIndicators) throws XMLStreamException { gapIndicators.duration = xml.getAttribute(DURATION, DEFAULT_VALUE); gapIndicators.gapInterval = xml.getAttribute(GAP_INTERVAL, DEFAULT_VALUE); } @Override public void write(GapIndicatorsImpl gapIndicators, javolution.xml.XMLFormat.OutputElement xml) throws XMLStreamException { xml.setAttribute(DURATION, gapIndicators.duration); xml.setAttribute(GAP_INTERVAL, gapIndicators.gapInterval); } }; @Override public String toString() { StringBuilder sb = new StringBuilder(); sb.append(_PrimitiveName); sb.append(" ["); sb.append("duration="); sb.append(duration); sb.append(", gapInterval="); sb.append(gapInterval); sb.append("]"); return sb.toString(); } }