Examples of com.cloud.agent.api.Command

com.cloud.agent.api.Command
implemented by classes that extends the Command class. Command specifies

        Mockito.when(template.getDataStore()).thenReturn(imageStore);


        // Mockito.when(image.getTemplate()).thenReturn(template);
        // CopyTemplateToPrimaryStorageCmd cmd = new
        // CopyTemplateToPrimaryStorageCmd(image);
        Command cmd = null;
        try {
            agentMgr.send(hostId, cmd);
        } catch (AgentUnavailableException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();

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    }


    protected void connectAgent(Link link, final Command[] cmds, final Request request) {
        //send startupanswer to agent in the very beginning, so agent can move on without waiting for the answer for an undetermined time, if we put this logic into another thread pool.
        StartupAnswer[] answers = new StartupAnswer[cmds.length];
        Command cmd;
        for (int i = 0; i < cmds.length; i++) {
            cmd = cmds[i];
            if ((cmd instanceof StartupRoutingCommand) || (cmd instanceof StartupProxyCommand) || (cmd instanceof StartupSecondaryStorageCommand) ||
                    (cmd instanceof StartupStorageCommand)) {
                answers[i] = new StartupAnswer((StartupCommand)cmds[i], 0, getPingInterval());

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                info = new AgentVmInfo(vm.getInstanceName(), getVmGuru(vm), vm, State.Stopped);
            }
            castedVm = info.guru.findById(vm.getId());


            HypervisorGuru hvGuru = _hvGuruMgr.getGuru(castedVm.getHypervisorType());
            Command command = compareState(hostId, castedVm, info, true, hvGuru.trackVmHostChange());
            if (command != null) {
                commands.addCommand(command);
            }
        }


        for (final AgentVmInfo left : infos.values()) {
            boolean found = false;
            for (VirtualMachineGuru<? extends VMInstanceVO> vmGuru : _vmGurus.values()) {
                VMInstanceVO vm = vmGuru.findByName(left.name);
                if (vm != null) {
                    found = true;
                    HypervisorGuru hvGuru = _hvGuruMgr.getGuru(vm.getHypervisorType());
                    if(hvGuru.trackVmHostChange()) {
                        Command command = compareState(hostId, vm, left, true, true);
                        if (command != null) {
                            commands.addCommand(command);
                        }
                    } else {
                        s_logger.warn("Stopping a VM, VM " + left.name + " migrate from Host " + vm.getHostId() + " to Host " + hostId );

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        for (Map.Entry<Long, AgentVmInfo> entry : states.entrySet()) {
            AgentVmInfo info = entry.getValue();


            VMInstanceVO vm = info.vm;


            Command command = null;
            if (vm != null) {
                HypervisorGuru hvGuru = _hvGuruMgr.getGuru(vm.getHypervisorType());
                command = compareState(hostId, vm, info, false, hvGuru.trackVmHostChange());
            } else {
                if (s_logger.isDebugEnabled()) {

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        Map<Long, AgentVmInfo> states = convertToInfos(newStates);


        for (Map.Entry<Long, AgentVmInfo> entry : states.entrySet()) {
            AgentVmInfo info = entry.getValue();
            VMInstanceVO vm = info.vm;
            Command command = null;
            if (vm != null) {
                Host host = _resourceMgr.findHostByGuid(info.getHostUuid());
                long hId = host.getId();


                HypervisorGuru hvGuru = _hvGuruMgr.getGuru(vm.getHypervisorType());

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                castedVm = info.guru.findById(vm.getId());
                try {
                    Host host = _hostDao.findByGuid(info.getHostUuid());
                    long hostId = host == null ? (vm.getHostId() == null ? vm.getLastHostId() : vm.getHostId()) : host.getId();
                    HypervisorGuru hvGuru = _hvGuruMgr.getGuru(castedVm.getHypervisorType());
                    Command command = compareState(hostId, castedVm, info, true, hvGuru.trackVmHostChange());
                    if (command != null){
                        Answer answer = _agentMgr.send(hostId, command);
                        if (!answer.getResult()) {
                            s_logger.warn("Failed to update state of the VM due to " + answer.getDetails());
                        }

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    protected Command compareState(long hostId, VMInstanceVO vm, final AgentVmInfo info, final boolean fullSync, boolean trackExternalChange) {
        State agentState = info.state;
        final State serverState = vm.getState();
        final String serverName = vm.getInstanceName();


        Command command = null;
        s_logger.debug("VM " + serverName + ": cs state = " + serverState + " and realState = " + agentState);
        if (s_logger.isDebugEnabled()) {
            s_logger.debug("VM " + serverName + ": cs state = " + serverState + " and realState = " + agentState);
        }

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            return false;
        }


        DataTO isoTO = tmplt.getTO();
        DiskTO disk = new DiskTO(isoTO, null, null, Volume.Type.ISO);
        Command cmd = null;
        if (attach) {
            cmd = new AttachCommand(disk, vmName);
        } else {
            cmd = new DettachCommand(disk, vmName);
        }

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                info = new AgentVmInfo(vm.getInstanceName(), getVmGuru(vm), vm, State.Stopped);
            } 
            castedVm = info.guru.findById(vm.getId());


            HypervisorGuru hvGuru = _hvGuruMgr.getGuru(castedVm.getHypervisorType());
            Command command = compareState(hostId, castedVm, info, true, hvGuru.trackVmHostChange());
            if (command != null) {
                commands.addCommand(command);
            }
        }
        
        for (final AgentVmInfo left : infos.values()) {
            boolean found = false;
            for (VirtualMachineGuru<? extends VMInstanceVO> vmGuru : _vmGurus.values()) {
                VMInstanceVO vm = vmGuru.findByName(left.name);
                if (vm != null) {
                    found = true;
                    HypervisorGuru hvGuru = _hvGuruMgr.getGuru(vm.getHypervisorType());
                    if(hvGuru.trackVmHostChange()) {
                        Command command = compareState(hostId, vm, left, true, true);
                        if (command != null) {
                            commands.addCommand(command);
                        }
                    } else {
                        s_logger.warn("Stopping a VM, VM " + left.name + " migrate from Host " + vm.getHostId() + " to Host " + hostId );

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        for (Map.Entry<Long, AgentVmInfo> entry : states.entrySet()) {
            AgentVmInfo info = entry.getValue();


            VMInstanceVO vm = info.vm;


            Command command = null;
            if (vm != null) {
                HypervisorGuru hvGuru = _hvGuruMgr.getGuru(vm.getHypervisorType());
                command = compareState(hostId, vm, info, false, hvGuru.trackVmHostChange());
            } else {
                if (s_logger.isDebugEnabled()) {

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