/*
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* Copyright 2011-17 Fraunhofer ISE, energy & meteo Systems GmbH and other contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package org.openmuc.josistack;
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import java.io.IOException;
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import java.net.InetAddress;
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import java.nio.ByteBuffer;
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import javax.net.SocketFactory;
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import org.openmuc.jositransport.ClientTSap;
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/**
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* This class implements the Service Access Point (SAP) for the Application Control Service Element (ACSE) protocol as
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* defined by ISO 8650 or ITU X.217/X.227. The ACSE provides services for establishing and releasing
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* application-associations. The class also realizes the lower ISO Presentation Layer as defined by ISO 8823/ITU X226
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* and the ISO Session Layer as defined by 8327/ITU X.225.
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*
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*/
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public final class ClientAcseSap {
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public ClientTSap tSap = null;
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static final byte[] P_SEL_DEFAULT = { 0, 0, 0, 1 };
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static final byte[] S_SEL_DEFAULT = { 0, 1 };
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public byte[] pSelRemote = P_SEL_DEFAULT;
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public byte[] pSelLocal = P_SEL_DEFAULT;
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public byte[] sSelRemote = S_SEL_DEFAULT;
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public byte[] sSelLocal = S_SEL_DEFAULT;
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private int[] apTitleCalled = new int[] { 1, 1, 999, 1, 1 };
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private int[] apTitleCalling = new int[] { 1, 1, 999, 1 };
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private int aeQualifierCalled = 12;
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private int aeQualifierCalling = 12;
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/**
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* Use this constructor to create a client ACSE Service Access Point (SAP) that will start connections to remote
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* ACSE SAPs. Once constructed the AcseSAP contains a public TSAP that can be accessed to set its configuration.
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*/
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public ClientAcseSap() {
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tSap = new ClientTSap();
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}
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public ClientAcseSap(SocketFactory socketFactory) {
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tSap = new ClientTSap(socketFactory);
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}
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public void setApTitleCalled(int[] title) {
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this.apTitleCalled = title;
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}
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public void setApTitleCalling(int[] title) {
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this.apTitleCalling = title;
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}
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public void setAeQualifierCalled(int qualifier) {
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this.aeQualifierCalled = qualifier;
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}
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public void setAeQualifierCalling(int qualifier) {
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this.aeQualifierCalling = qualifier;
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}
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/**
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* Associate to a remote ServerAcseSAP that is listening at the destination address.
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*
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* @param address
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* remote InetAddress
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* @param port
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* remote port
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* @param localAddr
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* local InetAddress
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* @param localPort
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* local port
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* @param authenticationParameter
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* an authentication parameter
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* @param apdu
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* the payload to send with the association request
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* @return the association object
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* @throws IOException
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* if an error occurs connecting
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*/
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public AcseAssociation associate(InetAddress address, int port, InetAddress localAddr, int localPort,
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String authenticationParameter, ByteBuffer apdu) throws IOException {
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AcseAssociation acseAssociation = new AcseAssociation(null, pSelLocal);
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try {
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acseAssociation.startAssociation(apdu, address, port, localAddr, localPort, authenticationParameter,
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sSelRemote, sSelLocal, pSelRemote, tSap, apTitleCalled, apTitleCalling, aeQualifierCalled,
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aeQualifierCalling);
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} catch (IOException e) {
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acseAssociation.disconnect();
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throw e;
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}
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return acseAssociation;
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}
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}
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