com.mapr.cli.common

Class ListCommand

java.lang.Object

com.mapr.cliframework.base.CLIBaseClass

com.mapr.cli.common.ListCommand

All Implemented Interfaces:

ListIterator, com.mapr.cliframework.base.CLIInterface

Direct Known Subclasses:

AlarmCommands, DiskCommands, EntityCommands, Heatmap, ServerCommands, SnapshotCommands, VirtualIPCommands, VolumeCommands

public abstract class ListCommand
extends com.mapr.cliframework.base.CLIBaseClass
implements ListIterator

Field Summary

Fields inherited from class com.mapr.cliframework.base.CLIBaseClass

cliCommand, CLUSTER_NAME_PARAM, clusterParams, HELP_PARAM, input, isServerCall, NOT_REQUIRED, output, REQUIRED, userInfo, version

Fields inherited from interface com.mapr.cliframework.base.CLIInterface

PASSWORD_PREFIX

Constructor Summary

Constructors

Constructor and Description
ListCommand(com.mapr.cliframework.base.ProcessedInput input, com.mapr.cliframework.base.CLICommand cliCommand)

Method Summary

Modifier and Type	Method and Description
abstract com.google.protobuf.MessageLite	buildNextRequest(com.google.protobuf.MessageLite prevReq, com.google.protobuf.MessageLite prevResp) Builds the next request object by inspecting the previous request and previous response.
protected <T> java.util.List<com.mapr.fs.cli.proto.CLIProto.Filter>	getFilters(java.util.Map<T,com.mapr.cliframework.util.FieldInfo> table, java.lang.String filterParam) Helper method for the sub classes to build a list of Filters from the input filter string.
protected com.mapr.fs.cli.proto.CLIProto.Limiter	getNextLimiter(int prevStart, int prevCount, int origStart, int origLimit, int numRecsPerRpc) Helper method to build limiter for next request.
protected boolean	hasMore(int origStart, int origLimit, int prevStart, int prevCount) A method that helps the sub classes to determine if there are more records to be processed.
abstract boolean	hasMore(com.google.protobuf.MessageLite prevReq, com.google.protobuf.MessageLite prevResp) Inspect the last request and last response to see if there are more records to be fetched.
void	list(com.mapr.cliframework.base.CommandOutput.OutputHierarchy out) Initiates the iteration process.
abstract void	processResponse(com.mapr.cliframework.base.CommandOutput.OutputHierarchy out, com.google.protobuf.MessageLite resp) Parse the response and populate the output hierarchy.
abstract com.google.protobuf.MessageLite	sendRequest(com.google.protobuf.MessageLite req) Send the request using RPC and fetch the response.

Methods inherited from class com.mapr.cliframework.base.CLIBaseClass

executeCommand, executeRealCommand, executeSimpleSHHCommand, executeSimpleSHHCommand, getCLICommand, getCommandUsage, getGIds, getInput, getKeyType, getParamBooleanValue, getParamDateValue, getParamIntValue, getParamLongValue, getParamObjectValue, getParamTextValue, getUserCredentials, getUserId, getUserLoginId, getVersion, isParamPresent, isParamValueEmpty, setServerCall, setUserCredentials, setVersion, validateInput

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ListCommand

public ListCommand(com.mapr.cliframework.base.ProcessedInput input,
                   com.mapr.cliframework.base.CLICommand cliCommand)

Method Detail

getNextLimiter

protected com.mapr.fs.cli.proto.CLIProto.Limiter getNextLimiter(int prevStart,
                                                                int prevCount,
                                                                int origStart,
                                                                int origLimit,
                                                                int numRecsPerRpc)

Helper method to build limiter for next request.

Parameters:

prevStart - - start index of the limiter in prev request

prevCount - - number of records returned in prev response

origStart - - starting index of the records originally requested (using the cli -start param)

origLimit - - number of records originally requested (using the cli -limit param)

numRecsPerRpc - - number of records an rpc response can carry

Returns:

- Limiter object for the next request

getFilters

protected <T> java.util.List<com.mapr.fs.cli.proto.CLIProto.Filter> getFilters(java.util.Map<T,com.mapr.cliframework.util.FieldInfo> table,
                                                                               java.lang.String filterParam)
                                                                        throws com.mapr.cliframework.base.CLIProcessingException

Helper method for the sub classes to build a list of Filters from the input filter string.

Type Parameters:

T -

Parameters:

table -

filterParam -

Returns:

Throws:

com.mapr.cliframework.base.CLIProcessingException

hasMore

protected boolean hasMore(int origStart,
                          int origLimit,
                          int prevStart,
                          int prevCount)

A method that helps the sub classes to determine if there are more records to be processed.

Parameters:

origStart - - The original value for the -start parameter

origLimit - - The original value for the -limit parameter

prevStart - - The value for the start parameter supplied during previous iteration.

prevCount - - The number of records returned in the previous iteration.

Returns:

- true, if there are more records. false otherwise.

list

public void list(com.mapr.cliframework.base.CommandOutput.OutputHierarchy out)
          throws com.mapr.cliframework.base.CLIProcessingException

Description copied from interface: ListIterator

Initiates the iteration process. while (hasMore()) { buildNextRequest sendRequest processResponse }

Specified by:

list in interface ListIterator

Parameters:

out - - The output of all the processed responses.

Throws:

com.mapr.cliframework.base.CLIProcessingException

hasMore

public abstract boolean hasMore(com.google.protobuf.MessageLite prevReq,
                                com.google.protobuf.MessageLite prevResp)
                         throws com.mapr.cliframework.base.CLIProcessingException

Description copied from interface: ListIterator

Inspect the last request and last response to see if there are more records to be fetched.

Specified by:

hasMore in interface ListIterator

Returns:

- true, if there are more records. false, if no more.

Throws:

com.mapr.cliframework.base.CLIProcessingException

buildNextRequest

public abstract com.google.protobuf.MessageLite buildNextRequest(com.google.protobuf.MessageLite prevReq,
                                                                 com.google.protobuf.MessageLite prevResp)
                                                          throws com.mapr.cliframework.base.CLIProcessingException

Description copied from interface: ListIterator

Builds the next request object by inspecting the previous request and previous response.

Specified by:

buildNextRequest in interface ListIterator

Returns:

- new request object

Throws:

com.mapr.cliframework.base.CLIProcessingException

sendRequest

public abstract com.google.protobuf.MessageLite sendRequest(com.google.protobuf.MessageLite req)
                                                     throws com.mapr.cliframework.base.CLIProcessingException

Description copied from interface: ListIterator

Send the request using RPC and fetch the response.

Specified by:

sendRequest in interface ListIterator

Parameters:

req - - request object.

Returns:

- the response object.

Throws:

com.mapr.cliframework.base.CLIProcessingException

processResponse

public abstract void processResponse(com.mapr.cliframework.base.CommandOutput.OutputHierarchy out,
                                     com.google.protobuf.MessageLite resp)
                              throws com.mapr.cliframework.base.CLIProcessingException

Description copied from interface: ListIterator

Parse the response and populate the output hierarchy.

Specified by:

processResponse in interface ListIterator

Parameters:

out - - CommandOutput.OutputHierarchy

resp - - response object

Throws:

com.mapr.cliframework.base.CLIProcessingException