warunalakshitha
7 years ago
parent
b407287b7c
commit
17cdb1652b
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/*
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* Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
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*
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* WSO2 Inc. licenses this file to you under the Apache License,
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* Version 2.0 (the "License"); you may not use this file except
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* 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package org.wso2.carbon.device.mgt.extensions.remote.session.dto;
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import org.wso2.carbon.device.mgt.extensions.remote.session.dto.common.RemoteSession;
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import javax.websocket.Session;
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/**
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* {@link ClientSession} is the represent of client which will be connecting to the device
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*/
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public class ClientSession extends RemoteSession {
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public ClientSession(Session session, String tenantDomain, String deviceType, String deviceId, String operationId) {
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super(session, tenantDomain, deviceType, deviceId, operationId);
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}
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@Override
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public boolean applyThrottlingPolicy() {
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return false;
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}
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}
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/*
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* Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
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*
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* WSO2 Inc. licenses this file to you under the Apache License,
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* Version 2.0 (the "License"); you may not use this file except
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* 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package org.wso2.carbon.device.mgt.extensions.remote.session.dto;
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import org.wso2.carbon.device.mgt.extensions.remote.session.dto.common.RemoteSession;
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import org.wso2.carbon.device.mgt.extensions.remote.session.internal.RemoteSessionManagementDataHolder;
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import javax.websocket.Session;
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/**
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* {@link DeviceSession} is the represent of device which will be connecting based on client request
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*/
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public class DeviceSession extends RemoteSession {
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public DeviceSession(Session session, String tenantDomain, String deviceType, String deviceId, String operationId) {
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super(session, tenantDomain, deviceType, deviceId, operationId);
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}
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@Override
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public boolean applyThrottlingPolicy() {
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if (RemoteSessionManagementDataHolder.getInstance().getMessagesPerSession() > 0) {
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long minDurationMessagesPerSecond = 1000 / RemoteSessionManagementDataHolder.getInstance()
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.getMessagesPerSession();
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if ((System.currentTimeMillis() - getLastMessageTimeStamp()) < minDurationMessagesPerSecond) {
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return true;
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}
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}
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return false;
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}
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}
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@ -1,125 +0,0 @@
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/*
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* Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
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*
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* WSO2 Inc. licenses this file to you under the Apache License,
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* Version 2.0 (the "License"); you may not use this file except
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* 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package org.wso2.carbon.device.mgt.extensions.remote.session.dto;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.wso2.carbon.device.mgt.extensions.remote.session.constants.RemoteSessionConstants;
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import org.wso2.carbon.device.mgt.extensions.remote.session.exception.RemoteSessionInvalidException;
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import javax.websocket.CloseReason;
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import javax.websocket.Session;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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public class RemoteSession {
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private static final Log log = LogFactory.getLog(RemoteSession.class);
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private String tenantDomain, operationId, deviceType, deviceId;
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private Session peerSession;
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private RemoteSessionConstants.CONNECTION_MODES connection_mode;
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private final Object writeLockObject = new Object();
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public RemoteSession(String tenantDomain, String deviceType, String deviceId, String operationId, RemoteSessionConstants.CONNECTION_MODES connection_mode) {
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this.deviceType = deviceType;
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this.deviceId = deviceId;
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this.tenantDomain = tenantDomain;
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this.operationId = operationId;
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this.connection_mode = connection_mode;
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}
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public void sendMessageToPeer(String message) throws RemoteSessionInvalidException {
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if (peerSession != null && peerSession.isOpen()) {
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synchronized (writeLockObject) {
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try {
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peerSession.getBasicRemote().sendText(message);
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} catch (IOException e) {
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log.warn("Send data to session failed due to ", e);
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}
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}
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} else {
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throw new RemoteSessionInvalidException("Peer Session already closed ", new CloseReason
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(CloseReason.CloseCodes.CANNOT_ACCEPT, "Peer Session already closed "));
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}
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}
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public void sendMessageToPeer(byte[] message) throws RemoteSessionInvalidException {
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if (peerSession != null && peerSession.isOpen()) {
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synchronized (writeLockObject) {
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try {
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peerSession.getBasicRemote().sendBinary(ByteBuffer.wrap(message));
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} catch (IOException e) {
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log.warn("Send data to session failed due to ", e);
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}
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}
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} else {
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throw new RemoteSessionInvalidException("Peer Session already closed ", new CloseReason
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(CloseReason.CloseCodes.CANNOT_ACCEPT, "Peer Session already closed "));
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}
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}
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public Session getPeerSession() {
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return peerSession;
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}
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public void setPeerSession(Session peerSession) {
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this.peerSession = peerSession;
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}
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public String getTenantDomain() {
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return tenantDomain;
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}
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public void setTenantDomain(String tenantDomain) {
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this.tenantDomain = tenantDomain;
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}
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public String getOperationId() {
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return operationId;
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}
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public void setOperationId(String operationId) {
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this.operationId = operationId;
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}
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public String getDeviceType() {
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return deviceType;
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}
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public void setDeviceType(String deviceType) {
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this.deviceType = deviceType;
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}
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public String getDeviceId() {
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return deviceId;
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}
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public void setDeviceId(String deviceId) {
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this.deviceId = deviceId;
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}
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public RemoteSessionConstants.CONNECTION_MODES getConnection_mode() {
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return connection_mode;
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}
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public void setConnection_mode(RemoteSessionConstants.CONNECTION_MODES connection_mode) {
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this.connection_mode = connection_mode;
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}
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}
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@ -0,0 +1,154 @@
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/*
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* Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
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*
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* WSO2 Inc. licenses this file to you under the Apache License,
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* Version 2.0 (the "License"); you may not use this file except
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* 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package org.wso2.carbon.device.mgt.extensions.remote.session.dto.common;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.json.JSONObject;
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import org.wso2.carbon.device.mgt.extensions.remote.session.constants.RemoteSessionConstants;
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import org.wso2.carbon.device.mgt.extensions.remote.session.exception.RemoteSessionInvalidException;
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import org.wso2.carbon.device.mgt.extensions.remote.session.exception.RemoteSessionManagementException;
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import javax.websocket.CloseReason;
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import javax.websocket.Session;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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/**
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* {@link RemoteSession} will represent remote websocket session
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* This class implements the behaviours of sending message to the session in multithreaded environment.
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*
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*/
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public abstract class RemoteSession {
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private static final Log log = LogFactory.getLog(RemoteSession.class);
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private String tenantDomain, operationId, deviceType, deviceId;
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private long lastMessageTimeStamp = System.currentTimeMillis();
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;
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private RemoteSession peerSession;
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private Session mySession;
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private final Object writeLockObject = new Object();
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protected RemoteSession(Session session, String tenantDomain, String deviceType, String deviceId, String
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operationId) {
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this.mySession = session;
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this.deviceType = deviceType;
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this.deviceId = deviceId;
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this.tenantDomain = tenantDomain;
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this.operationId = operationId;
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}
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public void sendMessage(Object message) throws RemoteSessionInvalidException, RemoteSessionManagementException {
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if (message != null) {
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boolean isMessageCountExceed = false;
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if (mySession != null && mySession.isOpen()) {
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synchronized (writeLockObject) {
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try {
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isMessageCountExceed = applyThrottlingPolicy();
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if (!isMessageCountExceed) {
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if (message instanceof String) {
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mySession.getBasicRemote().sendText(message.toString());
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} else {
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mySession.getBasicRemote().sendBinary(ByteBuffer.wrap((byte[]) message));
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}
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this.lastMessageTimeStamp = System.currentTimeMillis();
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}
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} catch (IOException e) {
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log.warn("Send data to session failed due to ", e);
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}
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}
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} else {
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throw new RemoteSessionInvalidException("Peer Session already closed ", new CloseReason
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(CloseReason.CloseCodes.CANNOT_ACCEPT, "Peer Session already closed "));
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}
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if (isMessageCountExceed) {
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JSONObject response = new JSONObject();
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response.put("code", RemoteSessionConstants.THROTTLE_OUT);
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sendMessageToPeer(message.toString());
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}
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} else {
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throw new RemoteSessionManagementException("Message is empty");
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}
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}
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public void sendMessageToPeer(Object message) throws RemoteSessionInvalidException, RemoteSessionManagementException {
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peerSession.sendMessage(message);
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}
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public abstract boolean applyThrottlingPolicy();
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public Session getMySession() {
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return mySession;
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}
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public void setMySession(Session mySession) {
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this.mySession = mySession;
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}
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public RemoteSession getPeerSession() {
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return peerSession;
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}
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public void setPeerSession(RemoteSession peerSession) {
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this.peerSession = peerSession;
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}
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public String getTenantDomain() {
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return tenantDomain;
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}
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public void setTenantDomain(String tenantDomain) {
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this.tenantDomain = tenantDomain;
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}
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public String getOperationId() {
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return operationId;
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}
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public void setOperationId(String operationId) {
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this.operationId = operationId;
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}
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public String getDeviceType() {
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return deviceType;
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}
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public void setDeviceType(String deviceType) {
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this.deviceType = deviceType;
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}
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public String getDeviceId() {
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return deviceId;
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}
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public void setDeviceId(String deviceId) {
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this.deviceId = deviceId;
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}
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public long getLastMessageTimeStamp() {
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return lastMessageTimeStamp;
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}
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public void setLastMessageTimeStamp(long lastMessageTimeStamp) {
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this.lastMessageTimeStamp = lastMessageTimeStamp;
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}
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}
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