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Posted to commits@airavata.apache.org by sh...@apache.org on 2015/06/03 20:14:31 UTC

[14/39] airavata git commit: Refactored gfac sub modules, merged gfac-ssh, gfac-gsissh, gfac-local, gfac-monitor and gsissh modules and create gface-impl, removed implementation from gfac-core to gfac-impl

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/MessageParser.java
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diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/MessageParser.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/MessageParser.java
deleted file mode 100644
index a003f55..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/MessageParser.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.core;
-
-import org.apache.airavata.gfac.monitor.exception.AiravataMonitorException;
-import org.apache.airavata.model.workspace.experiment.JobState;
-
-/**
- * This is an interface to implement messageparser, it could be
- * pull based or push based still monitor has to parse the content of
- * the message it gets from remote monitoring system and finalize
- * them to internal job state, Ex: JSON parser for AMQP and Qstat reader
- * for pull based monitor.
- */
-public interface MessageParser {
-    /**
-     * This method is to implement how to parse the incoming message
-     * and implement a logic to finalize the status of the job,
-     * we have to makesure the correct message is given to the messageparser
-     * parse method, it will not do any filtering
-     * @param message content of the message
-     * @return
-     */
-    JobState parseMessage(String message)throws AiravataMonitorException;
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/Monitor.java
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diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/Monitor.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/Monitor.java
deleted file mode 100644
index 614d606..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/Monitor.java
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.core;
-
-
-/**
- * This is the primary interface for Monitors,
- * This can be used to implement different methods of monitoring
- */
-public interface Monitor {
-
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/PullMonitor.java
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diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/PullMonitor.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/PullMonitor.java
deleted file mode 100644
index efdf89c..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/PullMonitor.java
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.core;
-
-import org.apache.airavata.gfac.monitor.exception.AiravataMonitorException;
-
-/**
- * PullMonitors can implement this interface
- * Since the pull and push based monitoring required different
- * operations, PullMonitor will be useful.
- * This will allow users to program Pull monitors separately
- */
-public abstract class PullMonitor extends AiravataAbstractMonitor {
-
-    private int pollingFrequence;
-    /**
-     * This method will can invoke when PullMonitor needs to start
-     * and it has to invoke in the frequency specified below,
-     * @return if the start process is successful return true else false
-     */
-    public abstract boolean startPulling() throws AiravataMonitorException;
-
-    /**
-     * This is the method to stop the polling process
-     * @return if the stopping process is successful return true else false
-     */
-    public abstract boolean stopPulling()throws AiravataMonitorException;
-
-    /**
-     * this method can be used to set the polling frequencey or otherwise
-     * can implement a polling mechanism, and implement how to do
-     * @param frequence
-     */
-    public void setPollingFrequence(int frequence){
-        this.pollingFrequence = frequence;
-    }
-
-    /**
-     * this method can be used to get the polling frequencey or otherwise
-     * can implement a polling mechanism, and implement how to do
-     * @return
-     */
-    public int getPollingFrequence(){
-        return this.pollingFrequence;
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/PushMonitor.java
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diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/PushMonitor.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/PushMonitor.java
deleted file mode 100644
index 1b6a228..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/core/PushMonitor.java
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.core;
-
-import org.apache.airavata.gfac.core.monitor.MonitorID;
-import org.apache.airavata.gfac.monitor.exception.AiravataMonitorException;
-
-/**
- * PushMonitors can implement this interface
- * Since the pull and push based monitoring required different
- * operations, PullMonitor will be useful.
- * This interface will allow users to program Push monitors separately
- */
-public abstract class PushMonitor extends AiravataAbstractMonitor {
-    /**
-     * This method can be invoked to register a listener with the
-     * remote monitoring system, ideally inside this method users will be
-     * writing some client listener code for the remote monitoring system,
-     * this will be a simple wrapper around any client for the remote Monitor.
-     * @param monitorID
-     * @return
-     */
-    public abstract boolean registerListener(MonitorID monitorID)throws AiravataMonitorException;
-
-    /**
-     * This method can be invoked to unregister a listener with the
-     * remote monitoring system, ideally inside this method users will be
-     * writing some client listener code for the remote monitoring system,
-     * this will be a simple wrapper around any client for the remote Monitor.
-     * @param monitorID
-     * @return
-     */
-    public abstract boolean unRegisterListener(MonitorID monitorID)throws AiravataMonitorException;
-
-    /**
-     * This can be used to stop the registration thread
-     * @return
-     * @throws org.apache.airavata.gfac.monitor.exception.AiravataMonitorException
-     */
-    public abstract boolean stopRegister()throws AiravataMonitorException;
-
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/exception/AiravataMonitorException.java
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diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/exception/AiravataMonitorException.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/exception/AiravataMonitorException.java
deleted file mode 100644
index 3acef66..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/exception/AiravataMonitorException.java
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.exception;
-
-public class AiravataMonitorException extends Exception {
-    private static final long serialVersionUID = -2849422320139467602L;
-
-    public AiravataMonitorException(Throwable e) {
-        super(e);
-    }
-
-    public AiravataMonitorException(String message) {
-        super(message, null);
-    }
-
-    public AiravataMonitorException(String message, Throwable e) {
-        super(message, e);
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/handlers/GridPullMonitorHandler.java
----------------------------------------------------------------------
diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/handlers/GridPullMonitorHandler.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/handlers/GridPullMonitorHandler.java
deleted file mode 100644
index 10192b7..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/handlers/GridPullMonitorHandler.java
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.handlers;
-
-import org.apache.airavata.common.exception.ApplicationSettingsException;
-import org.apache.airavata.common.logger.AiravataLogger;
-import org.apache.airavata.common.logger.AiravataLoggerFactory;
-import org.apache.airavata.common.utils.ServerSettings;
-import org.apache.airavata.gfac.core.context.JobExecutionContext;
-import org.apache.airavata.gfac.core.cpi.BetterGfacImpl;
-import org.apache.airavata.gfac.core.handler.GFacHandlerException;
-import org.apache.airavata.gfac.core.handler.ThreadedHandler;
-import org.apache.airavata.gfac.core.monitor.MonitorID;
-import org.apache.airavata.gfac.core.utils.GFacUtils;
-import org.apache.airavata.gfac.monitor.HPCMonitorID;
-import org.apache.airavata.gfac.monitor.exception.AiravataMonitorException;
-import org.apache.airavata.gfac.monitor.impl.pull.qstat.HPCPullMonitor;
-import org.apache.airavata.gfac.monitor.util.CommonUtils;
-import org.apache.airavata.gsi.ssh.api.authentication.AuthenticationInfo;
-import org.apache.airavata.gsi.ssh.impl.authentication.MyProxyAuthenticationInfo;
-import org.apache.zookeeper.KeeperException;
-import org.apache.zookeeper.WatchedEvent;
-import org.apache.zookeeper.Watcher;
-import org.apache.zookeeper.ZooKeeper;
-import org.apache.zookeeper.data.Stat;
-
-import java.io.File;
-import java.util.Properties;
-
-/**
- * this handler is responsible for monitoring jobs in a pull mode
- * and currently this support multiple pull monitoring in grid resource and uses
- * commands like qstat,squeue and this supports sun grid enging monitoring too
- * which is a slight variation of qstat monitoring.
- */
-public class GridPullMonitorHandler extends ThreadedHandler implements Watcher{
-    private final static AiravataLogger logger = AiravataLoggerFactory.getLogger(GridPullMonitorHandler.class);
-
-    private HPCPullMonitor hpcPullMonitor;
-
-    private AuthenticationInfo authenticationInfo;
-
-    public void initProperties(Properties properties) throws GFacHandlerException {
-        String myProxyUser = null;
-        try {
-            myProxyUser = ServerSettings.getSetting("myproxy.username");
-            String myProxyPass = ServerSettings.getSetting("myproxy.password");
-            String certPath = ServerSettings.getSetting("trusted.cert.location");
-            String myProxyServer = ServerSettings.getSetting("myproxy.server");
-            setAuthenticationInfo(new MyProxyAuthenticationInfo(myProxyUser, myProxyPass, myProxyServer,
-                    7512, 17280000, certPath));
-            hpcPullMonitor = new HPCPullMonitor(null,getAuthenticationInfo());    // we use our own credentials for monitoring, not from the store
-        } catch (ApplicationSettingsException e) {
-            logger.error("Error while  reading server properties", e);
-            throw new GFacHandlerException("Error while  reading server properties", e);
-        }
-    }
-
-    public void run() {
-        hpcPullMonitor.run();
-    }
-
-    public void invoke(JobExecutionContext jobExecutionContext) throws GFacHandlerException {
-        super.invoke(jobExecutionContext);
-        hpcPullMonitor.setGfac(jobExecutionContext.getGfac());
-        hpcPullMonitor.setPublisher(jobExecutionContext.getMonitorPublisher());
-        MonitorID monitorID = new HPCMonitorID(getAuthenticationInfo(), jobExecutionContext);
-        try {
-           /* ZooKeeper zk = jobExecutionContext.getZk();
-            try {
-                String experimentEntry = GFacUtils.findExperimentEntry(jobExecutionContext.getExperimentID(), zk);
-                String path = experimentEntry + File.separator + "operation";
-                Stat exists = zk.exists(path, this);
-                if (exists != null) {
-                    zk.getData(path, this, exists); // watching the operations node
-                }
-            } catch (KeeperException e) {
-                logger.error(e.getMessage(), e);
-            } catch (InterruptedException e) {
-                logger.error(e.getMessage(), e);
-            }*/
-            CommonUtils.addMonitortoQueue(hpcPullMonitor.getQueue(), monitorID, jobExecutionContext);
-            CommonUtils.increaseZkJobCount(monitorID); // update change job count to zookeeper
-        } catch (AiravataMonitorException e) {
-            logger.errorId(monitorID.getJobID(), "Error adding job {} monitorID object to the queue with experiment {}",
-                    monitorID.getJobID(),  monitorID.getExperimentID());
-        }
-    }
-
-    @Override
-    public void recover(JobExecutionContext jobExecutionContext) throws GFacHandlerException {
-        // TODO: Auto generated method body.
-    }
-
-    public AuthenticationInfo getAuthenticationInfo() {
-        return authenticationInfo;
-    }
-
-    public HPCPullMonitor getHpcPullMonitor() {
-        return hpcPullMonitor;
-    }
-
-    public void setAuthenticationInfo(AuthenticationInfo authenticationInfo) {
-        this.authenticationInfo = authenticationInfo;
-    }
-
-    public void setHpcPullMonitor(HPCPullMonitor hpcPullMonitor) {
-        this.hpcPullMonitor = hpcPullMonitor;
-    }
-
-
-    public void process(WatchedEvent watchedEvent) {
-        logger.info(watchedEvent.getPath());
-        if(Event.EventType.NodeDataChanged.equals(watchedEvent.getType())){
-            // node data is changed, this means node is cancelled.
-            logger.info("Experiment is cancelled with this path:"+watchedEvent.getPath());
-
-            String[] split = watchedEvent.getPath().split("/");
-            for(String element:split) {
-                if (element.contains("+")) {
-                    logger.info("Adding experimentID+TaskID to be removed from monitoring:"+element);
-                    hpcPullMonitor.getCancelJobList().add(element);
-                }
-            }
-        }
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/handlers/GridPushMonitorHandler.java
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diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/handlers/GridPushMonitorHandler.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/handlers/GridPushMonitorHandler.java
deleted file mode 100644
index 8b445df..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/handlers/GridPushMonitorHandler.java
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.handlers;
-
-import java.util.Arrays;
-import java.util.List;
-import java.util.Properties;
-import java.util.concurrent.LinkedBlockingQueue;
-
-import org.apache.airavata.common.exception.ApplicationSettingsException;
-import org.apache.airavata.common.utils.ServerSettings;
-import org.apache.airavata.gfac.core.context.JobExecutionContext;
-import org.apache.airavata.gfac.core.cpi.BetterGfacImpl;
-import org.apache.airavata.gfac.core.handler.GFacHandlerException;
-import org.apache.airavata.gfac.core.handler.ThreadedHandler;
-import org.apache.airavata.gfac.core.monitor.MonitorID;
-import org.apache.airavata.gfac.monitor.HPCMonitorID;
-import org.apache.airavata.gfac.monitor.impl.push.amqp.AMQPMonitor;
-import org.apache.airavata.gsi.ssh.api.authentication.AuthenticationInfo;
-import org.apache.airavata.gsi.ssh.impl.authentication.MyProxyAuthenticationInfo;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- *   this handler is responsible monitoring jobs in push mode
- *   and currently this support multiple push monitoring in grid resource
- */
-public class GridPushMonitorHandler extends ThreadedHandler {
-    private final static Logger logger= LoggerFactory.getLogger(GridPushMonitorHandler.class);
-
-    private AMQPMonitor amqpMonitor;
-
-    private AuthenticationInfo authenticationInfo;
-
-    @Override
-    public void initProperties(Properties properties) throws GFacHandlerException {
-        String myProxyUser=null;
-        try{
-            myProxyUser = ServerSettings.getSetting("myproxy.username");
-            String myProxyPass = ServerSettings.getSetting("myproxy.password");
-            String certPath = ServerSettings.getSetting("trusted.cert.location");
-            String myProxyServer = ServerSettings.getSetting("myproxy.server");
-            setAuthenticationInfo(new MyProxyAuthenticationInfo(myProxyUser, myProxyPass, myProxyServer,
-                    7512, 17280000, certPath));
-
-            String hostList=(String)properties.get("hosts");
-            String proxyFilePath = ServerSettings.getSetting("proxy.file.path");
-            String connectionName=ServerSettings.getSetting("connection.name");
-            LinkedBlockingQueue<MonitorID> pushQueue = new LinkedBlockingQueue<MonitorID>();
-            LinkedBlockingQueue<MonitorID> finishQueue = new LinkedBlockingQueue<MonitorID>();
-            List<String> hosts= Arrays.asList(hostList.split(","));
-            amqpMonitor=new AMQPMonitor(null,pushQueue,finishQueue,proxyFilePath,connectionName,hosts);
-        }catch (ApplicationSettingsException e){
-            logger.error(e.getMessage(), e);
-            throw new GFacHandlerException(e.getMessage(), e);
-        }
-    }
-
-    @Override
-    public void run() {
-        amqpMonitor.run();
-    }
-
-    public void invoke(JobExecutionContext jobExecutionContext) throws GFacHandlerException{
-        super.invoke(jobExecutionContext);
-        MonitorID monitorID=new HPCMonitorID(getAuthenticationInfo(),jobExecutionContext);
-        amqpMonitor.getRunningQueue().add(monitorID);
-    }
-
-    @Override
-    public void recover(JobExecutionContext jobExecutionContext) throws GFacHandlerException {
-        // TODO: Auto generated method body.
-    }
-
-    public AMQPMonitor getAmqpMonitor() {
-        return amqpMonitor;
-    }
-
-    public void setAmqpMonitor(AMQPMonitor amqpMonitor) {
-        this.amqpMonitor = amqpMonitor;
-    }
-
-    public AuthenticationInfo getAuthenticationInfo() {
-        return authenticationInfo;
-    }
-
-    public void setAuthenticationInfo(AuthenticationInfo authenticationInfo) {
-        this.authenticationInfo = authenticationInfo;
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/pull/qstat/HPCPullMonitor.java
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diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/pull/qstat/HPCPullMonitor.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/pull/qstat/HPCPullMonitor.java
deleted file mode 100644
index 3442367..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/pull/qstat/HPCPullMonitor.java
+++ /dev/null
@@ -1,471 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.impl.pull.qstat;
-
-import com.google.common.eventbus.EventBus;
-import org.apache.airavata.common.logger.AiravataLogger;
-import org.apache.airavata.common.logger.AiravataLoggerFactory;
-import org.apache.airavata.common.utils.MonitorPublisher;
-import org.apache.airavata.common.utils.ServerSettings;
-import org.apache.airavata.gfac.monitor.util.CommonUtils;
-import org.apache.airavata.gfac.core.cpi.GFac;
-import org.apache.airavata.gfac.core.monitor.MonitorID;
-import org.apache.airavata.gfac.core.utils.GFacThreadPoolExecutor;
-import org.apache.airavata.gfac.core.utils.OutHandlerWorker;
-import org.apache.airavata.gfac.monitor.HostMonitorData;
-import org.apache.airavata.gfac.monitor.UserMonitorData;
-import org.apache.airavata.gfac.monitor.core.PullMonitor;
-import org.apache.airavata.gfac.monitor.exception.AiravataMonitorException;
-import org.apache.airavata.gfac.monitor.impl.push.amqp.SimpleJobFinishConsumer;
-import org.apache.airavata.gsi.ssh.api.SSHApiException;
-import org.apache.airavata.gsi.ssh.api.authentication.AuthenticationInfo;
-import org.apache.airavata.model.appcatalog.computeresource.JobSubmissionProtocol;
-import org.apache.airavata.model.messaging.event.JobIdentifier;
-import org.apache.airavata.model.messaging.event.JobStatusChangeRequestEvent;
-import org.apache.airavata.model.workspace.experiment.JobState;
-
-import java.sql.Timestamp;
-import java.util.*;
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.LinkedBlockingDeque;
-import java.util.concurrent.LinkedBlockingQueue;
-
-/**
- * This monitor is based on qstat command which can be run
- * in grid resources and retrieve the job status.
- */
-public class HPCPullMonitor extends PullMonitor {
-
-    private final static AiravataLogger logger = AiravataLoggerFactory.getLogger(HPCPullMonitor.class);
-    public static final int FAILED_COUNT = 5;
-
-    // I think this should use DelayedBlocking Queue to do the monitoring*/
-    private BlockingQueue<UserMonitorData> queue;
-
-    private boolean startPulling = false;
-
-    private Map<String, ResourceConnection> connections;
-
-    private MonitorPublisher publisher;
-
-    private LinkedBlockingQueue<String> cancelJobList;
-
-    private List<String> completedJobsFromPush;
-
-    private GFac gfac;
-
-    private AuthenticationInfo authenticationInfo;
-
-    private ArrayList<MonitorID> removeList;
-
-    public HPCPullMonitor() {
-        connections = new HashMap<String, ResourceConnection>();
-        queue = new LinkedBlockingDeque<UserMonitorData>();
-        publisher = new MonitorPublisher(new EventBus());
-        cancelJobList = new LinkedBlockingQueue<String>();
-        completedJobsFromPush = new ArrayList<String>();
-        (new SimpleJobFinishConsumer(this.completedJobsFromPush)).listen();
-        removeList = new ArrayList<MonitorID>();
-    }
-
-    public HPCPullMonitor(MonitorPublisher monitorPublisher, AuthenticationInfo authInfo) {
-        connections = new HashMap<String, ResourceConnection>();
-        queue = new LinkedBlockingDeque<UserMonitorData>();
-        publisher = monitorPublisher;
-        authenticationInfo = authInfo;
-        cancelJobList = new LinkedBlockingQueue<String>();
-        this.completedJobsFromPush = new ArrayList<String>();
-        (new SimpleJobFinishConsumer(this.completedJobsFromPush)).listen();
-        removeList = new ArrayList<MonitorID>();
-    }
-
-    public HPCPullMonitor(BlockingQueue<UserMonitorData> queue, MonitorPublisher publisher) {
-        this.queue = queue;
-        this.publisher = publisher;
-        connections = new HashMap<String, ResourceConnection>();
-        cancelJobList = new LinkedBlockingQueue<String>();
-        this.completedJobsFromPush = new ArrayList<String>();
-        (new SimpleJobFinishConsumer(this.completedJobsFromPush)).listen();
-        removeList = new ArrayList<MonitorID>();
-    }
-
-
-    public void run() {
-        /* implement a logic to pick each monitorID object from the queue and do the
-        monitoring
-         */
-        this.startPulling = true;
-        while (this.startPulling && !ServerSettings.isStopAllThreads()) {
-            try {
-                // After finishing one iteration of the full queue this thread sleeps 1 second
-                synchronized (this.queue) {
-                    if (this.queue.size() > 0) {
-                        startPulling();
-                }
-            }
-                Thread.sleep(10000);
-            } catch (Exception e) {
-                // we catch all the exceptions here because no matter what happens we do not stop running this
-                // thread, but ideally we should report proper error messages, but this is handled in startPulling
-                // method, incase something happen in Thread.sleep we handle it with this catch block.
-                logger.error(e.getMessage(),e);
-            }
-        }
-        // thread is going to return so we close all the connections
-        Iterator<String> iterator = connections.keySet().iterator();
-        while (iterator.hasNext()) {
-            String next = iterator.next();
-            ResourceConnection resourceConnection = connections.get(next);
-            try {
-                resourceConnection.getCluster().disconnect();
-            } catch (SSHApiException e) {
-                logger.error("Erro while connecting to the cluster", e);
-            }
-        }
-    }
-
-    /**
-     * This method will can invoke when PullMonitor needs to start
-     * and it has to invoke in the frequency specified below,
-     *
-     * @return if the start process is successful return true else false
-     */
-     public boolean startPulling() throws AiravataMonitorException {
-        // take the top element in the queue and pull the data and put that element
-        // at the tail of the queue
-        //todo this polling will not work with multiple usernames but with single user
-        // and multiple hosts, currently monitoring will work
-        UserMonitorData take = null;
-        JobStatusChangeRequestEvent jobStatus = new JobStatusChangeRequestEvent();
-        MonitorID currentMonitorID = null;
-        try {
-            take = this.queue.take();
-            List<HostMonitorData> hostMonitorData = take.getHostMonitorData();
-            for (ListIterator<HostMonitorData> hostIterator = hostMonitorData.listIterator(); hostIterator.hasNext();) {
-                HostMonitorData iHostMonitorData = hostIterator.next();
-                if (iHostMonitorData.getJobSubmissionProtocol() == JobSubmissionProtocol.SSH) {
-                    String hostName = iHostMonitorData.getComputeResourceDescription().getHostName();
-                    ResourceConnection connection = null;
-                    if (connections.containsKey(hostName)) {
-                        if (!connections.get(hostName).isConnected()) {
-                            connection = new ResourceConnection(iHostMonitorData, getAuthenticationInfo());
-                            connections.put(hostName, connection);
-                        } else {
-                            logger.debug("We already have this connection so not going to create one");
-                            connection = connections.get(hostName);
-                        }
-                    } else {
-                        connection = new ResourceConnection(iHostMonitorData, getAuthenticationInfo());
-                        connections.put(hostName, connection);
-                    }
-
-                    // before we get the statuses, we check the cancel job list and remove them permanently
-                    List<MonitorID> monitorID = iHostMonitorData.getMonitorIDs();
-                    Iterator<String> iterator1 = cancelJobList.iterator();
-                    ListIterator<MonitorID> monitorIDListIterator = monitorID.listIterator();
-                    while (monitorIDListIterator.hasNext()) {
-                        MonitorID iMonitorID = monitorIDListIterator.next();
-                        while (iterator1.hasNext()) {
-                            String cancelMId = iterator1.next();
-                            if (cancelMId.equals(iMonitorID.getExperimentID() + "+" + iMonitorID.getTaskID())) {
-                                iMonitorID.setStatus(JobState.CANCELED);
-//                                CommonUtils.removeMonitorFromQueue(take, iMonitorID);
-                                removeList.add(iMonitorID);
-                                logger.debugId(cancelMId, "Found a match in cancel monitor queue, hence moved to the " +
-                                                "completed job queue, experiment {}, task {} , job {}",
-                                        iMonitorID.getExperimentID(), iMonitorID.getTaskID(), iMonitorID.getJobID());
-                                logger.info("Job cancelled: marking the Job as ************CANCELLED************ experiment {}, task {}, job name {} .",
-                                        iMonitorID.getExperimentID(), iMonitorID.getTaskID(), iMonitorID.getJobName());
-                                sendNotification(iMonitorID);
-                                logger.info("To avoid timing issues we sleep sometime and try to retrieve output files");
-                                Thread.sleep(10000);
-                                GFacThreadPoolExecutor.getCachedThreadPool().execute(new OutHandlerWorker(gfac, iMonitorID, publisher));
-                                break;
-                            }
-                        }
-                        iterator1 = cancelJobList.iterator();
-                    }
-
-                    cleanup(take);
-
-                    synchronized (completedJobsFromPush) {
-                        for (ListIterator<String> iterator = completedJobsFromPush.listIterator(); iterator.hasNext(); ) {
-                            String completeId = iterator.next();
-                            for (monitorIDListIterator = monitorID.listIterator(); monitorIDListIterator.hasNext(); ) {
-                                MonitorID iMonitorID = monitorIDListIterator.next();
-                                if (completeId.equals(iMonitorID.getUserName() + "," + iMonitorID.getJobName())) {
-                                    logger.info("This job is finished because push notification came with <username,jobName> " + completeId);
-                                    iMonitorID.setStatus(JobState.COMPLETE);
-//                                    CommonUtils.removeMonitorFromQueue(take, iMonitorID);//we have to make this empty everytime we iterate, otherwise this list will accumulate and will lead to a memory leak
-                                    removeList.add(iMonitorID);
-                                    logger.debugId(completeId, "Push notification updated job {} status to {}. " +
-                                                    "experiment {} , task {}.", iMonitorID.getJobID(), JobState.COMPLETE.toString(),
-                                            iMonitorID.getExperimentID(), iMonitorID.getTaskID());
-                                    logger.info("AMQP message recieved: marking the Job as ************COMPLETE************ experiment {}, task {}, job name {} .",
-                                            iMonitorID.getExperimentID(), iMonitorID.getTaskID(), iMonitorID.getJobName());
-
-                                    sendNotification(iMonitorID);
-                                    logger.info("To avoid timing issues we sleep sometime and try to retrieve output files");
-                                    Thread.sleep(10000);
-                                    GFacThreadPoolExecutor.getCachedThreadPool().execute(new OutHandlerWorker(gfac, iMonitorID, publisher));
-                                    break;
-                                }
-                            }
-                        }
-                    }
-
-                    cleanup(take);
-
-                    // we have to get this again because we removed the already completed jobs with amqp messages
-                    monitorID = iHostMonitorData.getMonitorIDs();
-                    Map<String, JobState> jobStatuses = connection.getJobStatuses(monitorID);
-                    for (Iterator<MonitorID> iterator = monitorID.listIterator(); iterator.hasNext(); ) {
-                        MonitorID iMonitorID = iterator.next();
-                        currentMonitorID = iMonitorID;
-                        if (!JobState.CANCELED.equals(iMonitorID.getStatus()) &&
-                                !JobState.COMPLETE.equals(iMonitorID.getStatus())) {
-                            iMonitorID.setStatus(jobStatuses.get(iMonitorID.getJobID() + "," + iMonitorID.getJobName()));    //IMPORTANT this is NOT a simple setter we have a logic
-                        } else if (JobState.COMPLETE.equals(iMonitorID.getStatus())) {
-                            logger.debugId(iMonitorID.getJobID(), "Moved job {} to completed jobs map, experiment {}, " +
-                                    "task {}", iMonitorID.getJobID(), iMonitorID.getExperimentID(), iMonitorID.getTaskID());
-//                            CommonUtils.removeMonitorFromQueue(take, iMonitorID);
-                            removeList.add(iMonitorID);
-                            logger.info("PULL Notification is complete: marking the Job as ************COMPLETE************ experiment {}, task {}, job name {} .",
-                                    iMonitorID.getExperimentID(), iMonitorID.getTaskID(), iMonitorID.getJobName());
-                            GFacThreadPoolExecutor.getCachedThreadPool().execute(new OutHandlerWorker(gfac, iMonitorID, publisher));
-                        }
-                        iMonitorID.setStatus(jobStatuses.get(iMonitorID.getJobID() + "," + iMonitorID.getJobName()));    //IMPORTANT this is not a simple setter we have a logic
-                        iMonitorID.setLastMonitored(new Timestamp((new Date()).getTime()));
-                        sendNotification(iMonitorID);
-                        // if the job is completed we do not have to put the job to the queue again
-                        iMonitorID.setLastMonitored(new Timestamp((new Date()).getTime()));
-                    }
-
-                    cleanup(take);
-
-
-                    for (Iterator<MonitorID> iterator = monitorID.listIterator(); iterator.hasNext(); ) {
-                        MonitorID iMonitorID = iterator.next();
-                        if (iMonitorID.getFailedCount() > FAILED_COUNT) {
-                            iMonitorID.setLastMonitored(new Timestamp((new Date()).getTime()));
-                            String outputDir = iMonitorID.getJobExecutionContext().getOutputDir();
-                            List<String> stdOut = null;
-                            try {
-                                stdOut = connection.getCluster().listDirectory(outputDir); // check the outputs directory
-                            } catch (SSHApiException e) {
-                                if (e.getMessage().contains("No such file or directory")) {
-                                    // this is because while we run output handler something failed and during exception
-                                    // we store all the jobs in the monitor queue again
-                                    logger.error("We know this  job is already attempted to run out-handlers");
-//                                    CommonUtils.removeMonitorFromQueue(queue, iMonitorID);
-                                }
-                            }
-                            if (stdOut != null && stdOut.size() > 0 && !stdOut.get(0).isEmpty()) { // have to be careful with this
-                                iMonitorID.setStatus(JobState.COMPLETE);
-                                logger.errorId(iMonitorID.getJobID(), "Job monitoring failed {} times, " +
-                                                " Experiment {} , task {}", iMonitorID.getFailedCount(),
-                                        iMonitorID.getExperimentID(), iMonitorID.getTaskID());
-                                logger.info("Listing directory came as complete: marking the Job as ************COMPLETE************ experiment {}, task {}, job name {} .",
-                                        iMonitorID.getExperimentID(), iMonitorID.getTaskID(), iMonitorID.getJobName());
-                                sendNotification(iMonitorID);
-//                                CommonUtils.removeMonitorFromQueue(take, iMonitorID);
-                                removeList.add(iMonitorID);
-                                GFacThreadPoolExecutor.getCachedThreadPool().execute(new OutHandlerWorker(gfac, iMonitorID, publisher));
-                            } else {
-                                iMonitorID.setFailedCount(0);
-                            }
-                        } else {
-                            // Evey
-                            iMonitorID.setLastMonitored(new Timestamp((new Date()).getTime()));
-                            // if the job is complete we remove it from the Map, if any of these maps
-                            // get empty this userMonitorData will get delete from the queue
-                        }
-                    }
-
-                    cleanup(take);
-
-
-                } else {
-                    logger.debug("Qstat Monitor doesn't handle non-gsissh hosts , host {}", iHostMonitorData.
-                            getComputeResourceDescription().getHostName());
-                }
-            }
-            // We have finished all the HostMonitorData object in userMonitorData, now we need to put it back
-            // now the userMonitorData goes back to the tail of the queue
-            // during individual monitorID removal we remove the HostMonitorData object if it become empty
-            // so if all the jobs are finished for all the hostMOnitorId objects in userMonitorData object
-            // we should remove it from the queue so here we do not put it back.
-            for (ListIterator<HostMonitorData> iterator1 = take.getHostMonitorData().listIterator(); iterator1.hasNext(); ) {
-                HostMonitorData iHostMonitorID = iterator1.next();
-                if (iHostMonitorID.getMonitorIDs().size() == 0) {
-                    iterator1.remove();
-                    logger.debug("Removed host {} from monitoring queue", iHostMonitorID.getComputeResourceDescription().getHostName());
-                }
-            }
-            if(take.getHostMonitorData().size()!=0) {
-                queue.put(take);
-            }
-        } catch (InterruptedException e) {
-            if (!this.queue.contains(take)) {
-                try {
-                    this.queue.put(take);
-                } catch (InterruptedException e1) {
-                    e1.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
-                }
-            }
-            logger.error("Error handling the job with Job ID:" + currentMonitorID.getJobID());
-            throw new AiravataMonitorException(e);
-        } catch (SSHApiException e) {
-            logger.error(e.getMessage());
-            if (e.getMessage().contains("Unknown Job Id Error")) {
-                // in this case job is finished or may be the given job ID is wrong
-                jobStatus.setState(JobState.UNKNOWN);
-                JobIdentifier jobIdentifier = new JobIdentifier("UNKNOWN", "UNKNOWN", "UNKNOWN", "UNKNOWN", "UNKNOWN");
-                if (currentMonitorID != null){
-                    jobIdentifier.setExperimentId(currentMonitorID.getExperimentID());
-                    jobIdentifier.setTaskId(currentMonitorID.getTaskID());
-                    jobIdentifier.setWorkflowNodeId(currentMonitorID.getWorkflowNodeID());
-                    jobIdentifier.setJobId(currentMonitorID.getJobID());
-                    jobIdentifier.setGatewayId(currentMonitorID.getJobExecutionContext().getGatewayID());
-                }
-                jobStatus.setJobIdentity(jobIdentifier);
-                publisher.publish(jobStatus);
-            } else if (e.getMessage().contains("illegally formed job identifier")) {
-                logger.error("Wrong job ID is given so dropping the job from monitoring system");
-            } else if (!this.queue.contains(take)) {
-                try {
-                    queue.put(take);
-                } catch (InterruptedException e1) {
-                    e1.printStackTrace();
-                }
-            }
-            throw new AiravataMonitorException("Error retrieving the job status", e);
-        } catch (Exception e) {
-            try {
-                queue.put(take);
-            } catch (InterruptedException e1) {
-                e1.printStackTrace();
-            }
-            throw new AiravataMonitorException("Error retrieving the job status", e);
-        }
-        return true;
-    }
-
-    private void sendNotification(MonitorID iMonitorID) {
-        JobStatusChangeRequestEvent jobStatus = new JobStatusChangeRequestEvent();
-        JobIdentifier jobIdentity = new JobIdentifier(iMonitorID.getJobID(),
-                iMonitorID.getTaskID(),
-                iMonitorID.getWorkflowNodeID(),
-                iMonitorID.getExperimentID(),
-                iMonitorID.getJobExecutionContext().getGatewayID());
-        jobStatus.setJobIdentity(jobIdentity);
-        jobStatus.setState(iMonitorID.getStatus());
-        // we have this JobStatus class to handle amqp monitoring
-        logger.debugId(jobStatus.getJobIdentity().getJobId(), "Published job status change request, " +
-                "experiment {} , task {}", jobStatus.getJobIdentity().getExperimentId(),
-        jobStatus.getJobIdentity().getTaskId());
-
-        publisher.publish(jobStatus);
-    }
-
-    /**
-     * This is the method to stop the polling process
-     *
-     * @return if the stopping process is successful return true else false
-     */
-    public boolean stopPulling() {
-        this.startPulling = false;
-        return true;
-    }
-
-    public MonitorPublisher getPublisher() {
-        return publisher;
-    }
-
-    public void setPublisher(MonitorPublisher publisher) {
-        this.publisher = publisher;
-    }
-
-    public BlockingQueue<UserMonitorData> getQueue() {
-        return queue;
-    }
-
-    public void setQueue(BlockingQueue<UserMonitorData> queue) {
-        this.queue = queue;
-    }
-
-    public boolean authenticate() {
-        return false;  //To change body of implemented methods use File | Settings | File Templates.
-    }
-
-    public Map<String, ResourceConnection> getConnections() {
-        return connections;
-    }
-
-    public boolean isStartPulling() {
-        return startPulling;
-    }
-
-    public void setConnections(Map<String, ResourceConnection> connections) {
-        this.connections = connections;
-    }
-
-    public void setStartPulling(boolean startPulling) {
-        this.startPulling = startPulling;
-    }
-
-    public GFac getGfac() {
-        return gfac;
-    }
-
-    public void setGfac(GFac gfac) {
-        this.gfac = gfac;
-    }
-
-    public AuthenticationInfo getAuthenticationInfo() {
-        return authenticationInfo;
-    }
-
-    public void setAuthenticationInfo(AuthenticationInfo authenticationInfo) {
-        this.authenticationInfo = authenticationInfo;
-    }
-
-    public LinkedBlockingQueue<String> getCancelJobList() {
-        return cancelJobList;
-    }
-
-    public void setCancelJobList(LinkedBlockingQueue<String> cancelJobList) {
-        this.cancelJobList = cancelJobList;
-    }
-
-
-    private void cleanup(UserMonitorData userMonitorData){
-        for(MonitorID iMonitorId:removeList){
-            try {
-                CommonUtils.removeMonitorFromQueue(userMonitorData, iMonitorId);
-            } catch (AiravataMonitorException e) {
-                logger.error(e.getMessage(), e);
-                logger.error("Error deleting the monitor data: " + iMonitorId.getJobID());
-            }
-        }
-        removeList.clear();
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/pull/qstat/ResourceConnection.java
----------------------------------------------------------------------
diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/pull/qstat/ResourceConnection.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/pull/qstat/ResourceConnection.java
deleted file mode 100644
index f718535..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/pull/qstat/ResourceConnection.java
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.impl.pull.qstat;
-
-import org.apache.airavata.gfac.GFacException;
-import org.apache.airavata.gfac.SecurityContext;
-import org.apache.airavata.gfac.core.monitor.MonitorID;
-import org.apache.airavata.gfac.gsissh.security.GSISecurityContext;
-import org.apache.airavata.gfac.monitor.HostMonitorData;
-import org.apache.airavata.gfac.ssh.security.SSHSecurityContext;
-import org.apache.airavata.gsi.ssh.api.SSHApiException;
-import org.apache.airavata.gsi.ssh.api.authentication.AuthenticationInfo;
-import org.apache.airavata.gsi.ssh.impl.JobStatus;
-import org.apache.airavata.gsi.ssh.impl.PBSCluster;
-import org.apache.airavata.model.workspace.experiment.JobState;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.util.List;
-import java.util.Map;
-import java.util.TreeMap;
-
-
-public class ResourceConnection {
-    private static final Logger log = LoggerFactory.getLogger(ResourceConnection.class);
-
-    private PBSCluster cluster;
-
-    private AuthenticationInfo authenticationInfo;
-
-
-    public ResourceConnection(HostMonitorData hostMonitorData,AuthenticationInfo authInfo) throws SSHApiException {
-        MonitorID monitorID = hostMonitorData.getMonitorIDs().get(0);
-        try {
-            SecurityContext securityContext = monitorID.getJobExecutionContext().getSecurityContext(monitorID.getComputeResourceDescription().getHostName());
-            if(securityContext != null) {
-                if (securityContext instanceof GSISecurityContext) {
-                    GSISecurityContext gsiSecurityContext = (GSISecurityContext) securityContext;
-                    cluster = (PBSCluster) gsiSecurityContext.getPbsCluster();
-                } else if (securityContext instanceof  SSHSecurityContext) {
-                    SSHSecurityContext sshSecurityContext = (SSHSecurityContext)
-                            securityContext;
-                    cluster = (PBSCluster) sshSecurityContext.getPbsCluster();
-                }
-            }
-            // we just use cluster configuration from the incoming request and construct a new cluster because for monitoring
-            // we are using our own credentials and not using one users account to do everything.
-            authenticationInfo = authInfo;
-        } catch (GFacException e) {
-            log.error("Error reading data from job ExecutionContext");
-        }
-    }
-
-    public ResourceConnection(HostMonitorData hostMonitorData) throws SSHApiException {
-        MonitorID monitorID = hostMonitorData.getMonitorIDs().get(0);
-        try {
-            GSISecurityContext securityContext = (GSISecurityContext)
-                    monitorID.getJobExecutionContext().getSecurityContext(monitorID.getComputeResourceDescription().getHostName());
-            cluster = (PBSCluster) securityContext.getPbsCluster();
-
-            // we just use cluster configuration from the incoming request and construct a new cluster because for monitoring
-            // we are using our own credentials and not using one users account to do everything.
-            cluster = new PBSCluster(cluster.getServerInfo(), authenticationInfo, cluster.getJobManagerConfiguration());
-        } catch (GFacException e) {
-            log.error("Error reading data from job ExecutionContext");
-        }
-    }
-
-    public JobState getJobStatus(MonitorID monitorID) throws SSHApiException {
-        String jobID = monitorID.getJobID();
-        //todo so currently we execute the qstat for each job but we can use user based monitoring
-        //todo or we should concatenate all the commands and execute them in one go and parseSingleJob the response
-        return getStatusFromString(cluster.getJobStatus(jobID).toString());
-    }
-
-    public Map<String, JobState> getJobStatuses(List<MonitorID> monitorIDs) throws SSHApiException {
-        Map<String, JobStatus> treeMap = new TreeMap<String, JobStatus>();
-        Map<String, JobState> treeMap1 = new TreeMap<String, JobState>();
-        // creating a sorted map with all the jobIds and with the predefined
-        // status as UNKNOWN
-        for (MonitorID monitorID : monitorIDs) {
-            treeMap.put(monitorID.getJobID()+","+monitorID.getJobName(), JobStatus.U);
-        }
-        String userName = cluster.getServerInfo().getUserName();
-        //todo so currently we execute the qstat for each job but we can use user based monitoring
-        //todo or we should concatenate all the commands and execute them in one go and parseSingleJob the response
-        //
-        cluster.getJobStatuses(userName, treeMap);
-        for (String key : treeMap.keySet()) {
-            treeMap1.put(key, getStatusFromString(treeMap.get(key).toString()));
-        }
-        return treeMap1;
-    }
-
-    private JobState getStatusFromString(String status) {
-        log.info("parsing the job status returned : " + status);
-        if (status != null) {
-            if ("C".equals(status) || "CD".equals(status) || "E".equals(status) || "CG".equals(status) || "DONE".equals(status)) {
-                return JobState.COMPLETE;
-            } else if ("H".equals(status) || "h".equals(status)) {
-                return JobState.HELD;
-            } else if ("Q".equals(status) || "qw".equals(status) || "PEND".equals(status)) {
-                return JobState.QUEUED;
-            } else if ("R".equals(status) || "CF".equals(status) || "r".equals(status) || "RUN".equals(status)) {
-                return JobState.ACTIVE;
-            } else if ("T".equals(status)) {
-                return JobState.HELD;
-            } else if ("W".equals(status) || "PD".equals(status)) {
-                return JobState.QUEUED;
-            } else if ("S".equals(status) || "PSUSP".equals(status) || "USUSP".equals(status) || "SSUSP".equals(status)) {
-                return JobState.SUSPENDED;
-            } else if ("CA".equals(status)) {
-                return JobState.CANCELED;
-            } else if ("F".equals(status) || "NF".equals(status) || "TO".equals(status) || "EXIT".equals(status)) {
-                return JobState.FAILED;
-            } else if ("PR".equals(status) || "Er".equals(status)) {
-                return JobState.FAILED;
-            } else if ("U".equals(status) || ("UNKWN".equals(status))) {
-                return JobState.UNKNOWN;
-            }
-        }
-        return JobState.UNKNOWN;
-    }
-
-    public PBSCluster getCluster() {
-        return cluster;
-    }
-
-    public void setCluster(PBSCluster cluster) {
-        this.cluster = cluster;
-    }
-
-    public boolean isConnected(){
-        return this.cluster.getSession().isConnected();
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/AMQPMonitor.java
----------------------------------------------------------------------
diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/AMQPMonitor.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/AMQPMonitor.java
deleted file mode 100644
index de8cd8c..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/AMQPMonitor.java
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.impl.push.amqp;
-
-import java.io.IOException;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.BlockingQueue;
-
-import org.apache.airavata.common.utils.MonitorPublisher;
-import org.apache.airavata.common.utils.ServerSettings;
-import org.apache.airavata.gfac.core.monitor.MonitorID;
-import org.apache.airavata.gfac.monitor.core.PushMonitor;
-import org.apache.airavata.gfac.monitor.exception.AiravataMonitorException;
-import org.apache.airavata.gfac.monitor.util.AMQPConnectionUtil;
-import org.apache.airavata.gfac.monitor.util.CommonUtils;
-import org.apache.airavata.model.appcatalog.computeresource.ComputeResourceDescription;
-import org.apache.airavata.model.messaging.event.JobIdentifier;
-import org.apache.airavata.model.messaging.event.JobStatusChangeEvent;
-import org.apache.airavata.model.workspace.experiment.JobState;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import com.google.common.eventbus.EventBus;
-import com.google.common.eventbus.Subscribe;
-import com.rabbitmq.client.Channel;
-import com.rabbitmq.client.Connection;
-
-/**
- * This is the implementation for AMQP based finishQueue, this uses
- * rabbitmq client to recieve AMQP based monitoring data from
- * mostly excede resources.
- */
-public class AMQPMonitor extends PushMonitor {
-    private final static Logger logger = LoggerFactory.getLogger(AMQPMonitor.class);
-
-
-    /* this will keep all the channels available in the system, we do not create
-      channels for all the jobs submitted, but we create channels for each user for each
-      host.
-    */
-    private Map<String, Channel> availableChannels;
-
-    private MonitorPublisher publisher;
-
-    private MonitorPublisher localPublisher;
-
-    private BlockingQueue<MonitorID> runningQueue;
-
-    private BlockingQueue<MonitorID> finishQueue;
-
-    private String connectionName;
-
-    private String proxyPath;
-
-    private List<String> amqpHosts;
-
-    private boolean startRegister;
-
-    public AMQPMonitor(){
-
-    }
-    public AMQPMonitor(MonitorPublisher publisher, BlockingQueue<MonitorID> runningQueue,
-                       BlockingQueue<MonitorID> finishQueue,
-                       String proxyPath,String connectionName,List<String> hosts) {
-        this.publisher = publisher;
-        this.runningQueue = runningQueue;        // these will be initialized by the MonitorManager
-        this.finishQueue = finishQueue;          // these will be initialized by the MonitorManager
-        this.availableChannels = new HashMap<String, Channel>();
-        this.connectionName = connectionName;
-        this.proxyPath = proxyPath;
-        this.amqpHosts = hosts;
-        this.localPublisher = new MonitorPublisher(new EventBus());
-        this.localPublisher.registerListener(this);
-    }
-
-    public void initialize(String proxyPath, String connectionName, List<String> hosts) {
-        this.availableChannels = new HashMap<String, Channel>();
-        this.connectionName = connectionName;
-        this.proxyPath = proxyPath;
-        this.amqpHosts = hosts;
-        this.localPublisher = new MonitorPublisher(new EventBus());
-        this.localPublisher.registerListener(this);
-    }
-
-    @Override
-    public boolean registerListener(MonitorID monitorID) throws AiravataMonitorException {
-        // we subscribe to read user-host based subscription
-        ComputeResourceDescription computeResourceDescription = monitorID.getComputeResourceDescription();
-        if (computeResourceDescription.isSetIpAddresses() && computeResourceDescription.getIpAddresses().size() > 0) {
-            // we get first ip address for the moment
-            String hostAddress = computeResourceDescription.getIpAddresses().get(0);
-            // in amqp case there are no multiple jobs per each host, because once a job is put in to the queue it
-            // will be picked by the Monitor, so jobs will not stay in this queueu but jobs will stay in finishQueue
-            String channelID = CommonUtils.getChannelID(monitorID);
-            if (availableChannels.get(channelID) == null) {
-                try {
-                    //todo need to fix this rather getting it from a file
-                    Connection connection = AMQPConnectionUtil.connect(amqpHosts, connectionName, proxyPath);
-                    Channel channel = null;
-                    channel = connection.createChannel();
-                    availableChannels.put(channelID, channel);
-                    String queueName = channel.queueDeclare().getQueue();
-
-                    BasicConsumer consumer = new
-                            BasicConsumer(new JSONMessageParser(), localPublisher);          // here we use local publisher
-                    channel.basicConsume(queueName, true, consumer);
-                    String filterString = CommonUtils.getRoutingKey(monitorID.getUserName(), hostAddress);
-                    // here we queuebind to a particular user in a particular machine
-                    channel.queueBind(queueName, "glue2.computing_activity", filterString);
-                    logger.info("Using filtering string to monitor: " + filterString);
-                } catch (IOException e) {
-                    logger.error("Error creating the connection to finishQueue the job:" + monitorID.getUserName());
-                }
-            }
-        } else {
-            throw new AiravataMonitorException("Couldn't register monitor for jobId :" + monitorID.getJobID() +
-                    " , ComputeResourceDescription " + computeResourceDescription.getHostName() + " doesn't has an " +
-                    "IpAddress with it");
-        }
-        return true;
-    }
-
-    public void run() {
-        // before going to the while true mode we start unregister thread
-        startRegister = true; // this will be unset by someone else
-        while (startRegister || !ServerSettings.isStopAllThreads()) {
-            try {
-                MonitorID take = runningQueue.take();
-                this.registerListener(take);
-            } catch (AiravataMonitorException e) { // catch any exceptino inside the loop
-                logger.error(e.getMessage(), e);
-            } catch (InterruptedException e) {
-                logger.error(e.getMessage(), e);
-            } catch (Exception e){
-                logger.error(e.getMessage(), e);
-            }
-        }
-        Set<String> strings = availableChannels.keySet();
-        for(String key:strings) {
-            Channel channel = availableChannels.get(key);
-            try {
-                channel.close();
-            } catch (IOException e) {
-                logger.error(e.getMessage(), e);
-            }
-        }
-    }
-
-    @Subscribe
-    public boolean unRegisterListener(MonitorID monitorID) throws AiravataMonitorException {
-        Iterator<MonitorID> iterator = finishQueue.iterator();
-        MonitorID next = null;
-        while(iterator.hasNext()){
-            next = iterator.next();
-            if(next.getJobID().endsWith(monitorID.getJobID())){
-                break;
-            }
-        }
-        if(next == null) {
-            logger.error("Job has removed from the queue, old obsolete message recieved");
-            return false;
-        }
-        String channelID = CommonUtils.getChannelID(next);
-        if (JobState.FAILED.equals(monitorID.getStatus()) || JobState.COMPLETE.equals(monitorID.getStatus())) {
-            finishQueue.remove(next);
-
-            // if this is the last job in the queue at this point with the same username and same host we
-            // close the channel and close the connection and remove it from availableChannels
-            if (CommonUtils.isTheLastJobInQueue(finishQueue, next)) {
-                logger.info("There are no jobs to monitor for common ChannelID:" + channelID + " , so we unsubscribe it" +
-                        ", incase new job created we do subscribe again");
-                Channel channel = availableChannels.get(channelID);
-                if (channel == null) {
-                    logger.error("Already Unregistered the listener");
-                    throw new AiravataMonitorException("Already Unregistered the listener");
-                } else {
-                    try {
-                        channel.queueUnbind(channel.queueDeclare().getQueue(), "glue2.computing_activity", CommonUtils.getRoutingKey(next));
-                        channel.close();
-                        channel.getConnection().close();
-                        availableChannels.remove(channelID);
-                    } catch (IOException e) {
-                        logger.error("Error unregistering the listener");
-                        throw new AiravataMonitorException("Error unregistering the listener");
-                    }
-                }
-            }
-        }
-        next.setStatus(monitorID.getStatus());
-        JobIdentifier jobIdentity = new JobIdentifier(next.getJobID(),
-                                                     next.getTaskID(),
-                                                     next.getWorkflowNodeID(),
-                                                     next.getExperimentID(),
-                                                     next.getJobExecutionContext().getGatewayID());
-        publisher.publish(new JobStatusChangeEvent(next.getStatus(),jobIdentity));
-        return true;
-    }
-    @Override
-    public boolean stopRegister() throws AiravataMonitorException {
-        return false;  //To change body of implemented methods use File | Settings | File Templates.
-    }
-
-    public Map<String, Channel> getAvailableChannels() {
-        return availableChannels;
-    }
-
-    public void setAvailableChannels(Map<String, Channel> availableChannels) {
-        this.availableChannels = availableChannels;
-    }
-
-    public MonitorPublisher getPublisher() {
-        return publisher;
-    }
-
-    public void setPublisher(MonitorPublisher publisher) {
-        this.publisher = publisher;
-    }
-
-    public BlockingQueue<MonitorID> getRunningQueue() {
-        return runningQueue;
-    }
-
-    public void setRunningQueue(BlockingQueue<MonitorID> runningQueue) {
-        this.runningQueue = runningQueue;
-    }
-
-    public BlockingQueue<MonitorID> getFinishQueue() {
-        return finishQueue;
-    }
-
-    public void setFinishQueue(BlockingQueue<MonitorID> finishQueue) {
-        this.finishQueue = finishQueue;
-    }
-
-    public String getProxyPath() {
-        return proxyPath;
-    }
-
-    public void setProxyPath(String proxyPath) {
-        this.proxyPath = proxyPath;
-    }
-
-    public List<String> getAmqpHosts() {
-        return amqpHosts;
-    }
-
-    public void setAmqpHosts(List<String> amqpHosts) {
-        this.amqpHosts = amqpHosts;
-    }
-
-    public boolean isStartRegister() {
-        return startRegister;
-    }
-
-    public void setStartRegister(boolean startRegister) {
-        this.startRegister = startRegister;
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/BasicConsumer.java
----------------------------------------------------------------------
diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/BasicConsumer.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/BasicConsumer.java
deleted file mode 100644
index bd5c625..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/BasicConsumer.java
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.impl.push.amqp;
-
-import org.apache.airavata.common.utils.MonitorPublisher;
-import org.apache.airavata.gfac.core.monitor.MonitorID;
-import org.apache.airavata.gfac.monitor.core.MessageParser;
-import org.apache.airavata.gfac.monitor.exception.AiravataMonitorException;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import com.rabbitmq.client.AMQP;
-import com.rabbitmq.client.Consumer;
-import com.rabbitmq.client.Envelope;
-import com.rabbitmq.client.ShutdownSignalException;
-
-public class BasicConsumer implements Consumer {
-    private final static Logger logger = LoggerFactory.getLogger(AMQPMonitor.class);
-
-    private MessageParser parser;
-
-    private MonitorPublisher publisher;
-
-    public BasicConsumer(MessageParser parser, MonitorPublisher publisher) {
-        this.parser = parser;
-        this.publisher = publisher;
-    }
-
-    public void handleCancel(String consumerTag) {
-    }
-
-    public void handleCancelOk(String consumerTag) {
-    }
-
-    public void handleConsumeOk(String consumerTag) {
-    }
-
-    public void handleDelivery(String consumerTag,
-                               Envelope envelope,
-                               AMQP.BasicProperties properties,
-                               byte[] body) {
-
-        logger.debug("job update for: " + envelope.getRoutingKey());
-        String message = new String(body);
-        message = message.replaceAll("(?m)^", "    ");
-        // Here we parse the message and get the job status and push it
-        // to the Event bus, this will be picked by
-//        AiravataJobStatusUpdator and store in to registry
-
-        logger.debug("************************************************************");
-        logger.debug("AMQP Message recieved \n" + message);
-        logger.debug("************************************************************");
-        try {
-            String jobID = envelope.getRoutingKey().split("\\.")[0];
-            MonitorID monitorID = new MonitorID(null, jobID, null, null, null, null,null);
-            monitorID.setStatus(parser.parseMessage(message));
-            publisher.publish(monitorID);
-        } catch (AiravataMonitorException e) {
-            logger.error(e.getMessage(), e);
-        }
-    }
-
-    public void handleRecoverOk(String consumerTag) {
-    }
-
-    public void handleShutdownSignal(String consumerTag, ShutdownSignalException sig) {
-    }
-
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/JSONMessageParser.java
----------------------------------------------------------------------
diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/JSONMessageParser.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/JSONMessageParser.java
deleted file mode 100644
index 72c77d5..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/JSONMessageParser.java
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.impl.push.amqp;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
-import org.apache.airavata.ComputingActivity;
-import org.apache.airavata.gfac.monitor.core.MessageParser;
-import org.apache.airavata.gfac.monitor.exception.AiravataMonitorException;
-import org.apache.airavata.model.workspace.experiment.JobState;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.IOException;
-import java.util.List;
-
-public class JSONMessageParser implements MessageParser {
-    private final static Logger logger = LoggerFactory.getLogger(JSONMessageParser.class);
-
-    public JobState parseMessage(String message)throws AiravataMonitorException {
-        /*todo write a json message parser here*/
-        logger.debug(message);
-        ObjectMapper objectMapper = new ObjectMapper();
-        try {
-            ComputingActivity computingActivity = objectMapper.readValue(message.getBytes(), ComputingActivity.class);
-            logger.info(computingActivity.getIDFromEndpoint());
-            List<String> stateList = computingActivity.getState();
-            JobState jobState = null;
-            for (String aState : stateList) {
-                jobState = getStatusFromString(aState);
-            }
-            // we get the last value of the state array
-            return jobState;
-        } catch (IOException e) {
-            throw new AiravataMonitorException(e);
-        }
-    }
-
-private JobState getStatusFromString(String status) {
-        logger.info("parsing the job status returned : " + status);
-        if(status != null){
-            if("ipf:finished".equals(status)){
-                return JobState.COMPLETE;
-            }else if("ipf:pending".equals(status)|| "ipf:starting".equals(status)){
-                return JobState.QUEUED;
-            }else if("ipf:running".equals(status) || "ipf:finishing".equals(status)){
-                return JobState.ACTIVE;
-            }else if ("ipf:held".equals(status) || "ipf:teminating".equals(status) || "ipf:teminated".equals(status)) {
-                return JobState.HELD;
-            } else if ("ipf:suspending".equals(status)) {
-                return JobState.SUSPENDED;
-            }else if ("ipf:failed".equals(status)) {
-                return JobState.FAILED;
-            }else if ("ipf:unknown".equals(status)){
-                return JobState.UNKNOWN;
-            }
-        }
-        return JobState.UNKNOWN;
-    }
-
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/SimpleJobFinishConsumer.java
----------------------------------------------------------------------
diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/SimpleJobFinishConsumer.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/SimpleJobFinishConsumer.java
deleted file mode 100644
index c4275f1..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/SimpleJobFinishConsumer.java
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.impl.push.amqp;
-
-import com.rabbitmq.client.Channel;
-import com.rabbitmq.client.Connection;
-import com.rabbitmq.client.ConnectionFactory;
-import com.rabbitmq.client.QueueingConsumer;
-import org.apache.airavata.common.utils.Constants;
-import org.apache.airavata.common.utils.ServerSettings;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.util.List;
-
-public class SimpleJobFinishConsumer {
-    private final static Logger logger = LoggerFactory.getLogger(SimpleJobFinishConsumer.class);
-
-    private List<String> completedJobsFromPush;
-
-    public SimpleJobFinishConsumer(List<String> completedJobsFromPush) {
-        this.completedJobsFromPush = completedJobsFromPush;
-    }
-
-    public void listen() {
-        try {
-            String queueName = ServerSettings.getSetting(Constants.GFAC_SERVER_PORT, "8950");
-            String uri = "amqp://localhost";
-
-            ConnectionFactory connFactory = new ConnectionFactory();
-            connFactory.setUri(uri);
-            Connection conn = connFactory.newConnection();
-            logger.info("--------Created the connection to Rabbitmq server successfully-------");
-
-            final Channel ch = conn.createChannel();
-
-            logger.info("--------Created the channel with Rabbitmq server successfully-------");
-
-            ch.queueDeclare(queueName, false, false, false, null);
-
-            logger.info("--------Declare the queue " + queueName + " in Rabbitmq server successfully-------");
-
-            final QueueingConsumer consumer = new QueueingConsumer(ch);
-            ch.basicConsume(queueName, consumer);
-            (new Thread() {
-                public void run() {
-                    try {
-                        while (true) {
-                            QueueingConsumer.Delivery delivery = consumer.nextDelivery();
-                            String message = new String(delivery.getBody());
-                            logger.info("---------------- Job Finish message received:" + message + " --------------");
-                            synchronized (completedJobsFromPush) {
-                                completedJobsFromPush.add(message);
-                            }
-                            ch.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
-                        }
-                    } catch (Exception ex) {
-                        logger.error("--------Cannot connect to a RabbitMQ Server--------" , ex);
-                    }
-                }
-
-            }).start();
-        } catch (Exception ex) {
-            logger.error("Cannot connect to a RabbitMQ Server: " , ex);
-            logger.info("------------- Push monitoring for HPC jobs is disabled -------------");
-        }
-    }
-}

http://git-wip-us.apache.org/repos/asf/airavata/blob/7b809747/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/UnRegisterWorker.java
----------------------------------------------------------------------
diff --git a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/UnRegisterWorker.java b/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/UnRegisterWorker.java
deleted file mode 100644
index a701326..0000000
--- a/modules/gfac/gfac-monitor/gfac-hpc-monitor/src/main/java/org/apache/airavata/gfac/monitor/impl/push/amqp/UnRegisterWorker.java
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- *
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- *
-*/
-package org.apache.airavata.gfac.monitor.impl.push.amqp;
-
-import com.google.common.eventbus.Subscribe;
-import com.rabbitmq.client.Channel;
-import org.apache.airavata.gfac.core.monitor.MonitorID;
-import org.apache.airavata.gfac.monitor.exception.AiravataMonitorException;
-import org.apache.airavata.gfac.monitor.util.CommonUtils;
-import org.apache.airavata.model.messaging.event.JobStatusChangeEvent;
-import org.apache.airavata.model.workspace.experiment.JobState;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.IOException;
-import java.util.Map;
-
-public class UnRegisterWorker{
-    private final static Logger logger = LoggerFactory.getLogger(UnRegisterWorker.class);
-    private Map<String, Channel> availableChannels;
-
-    public UnRegisterWorker(Map<String, Channel> channels) {
-        this.availableChannels = channels;
-    }
-
-    @Subscribe
-    private boolean unRegisterListener(JobStatusChangeEvent jobStatus, MonitorID monitorID) throws AiravataMonitorException {
-        String channelID = CommonUtils.getChannelID(monitorID);
-        if (JobState.FAILED.equals(jobStatus.getState()) || JobState.COMPLETE.equals(jobStatus.getState())){
-            Channel channel = availableChannels.get(channelID);
-            if (channel == null) {
-                logger.error("Already Unregistered the listener");
-                throw new AiravataMonitorException("Already Unregistered the listener");
-            } else {
-                try {
-                    channel.queueUnbind(channel.queueDeclare().getQueue(), "glue2.computing_activity", CommonUtils.getRoutingKey(monitorID));
-                    channel.close();
-                    channel.getConnection().close();
-                    availableChannels.remove(channelID);
-                } catch (IOException e) {
-                    logger.error("Error unregistering the listener");
-                    throw new AiravataMonitorException("Error unregistering the listener");
-                }
-            }
-        }
-        return true;
-    }
-}
-