[ 
https://issues.apache.org/jira/browse/HBASE-20119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Chia-Ping Tsai updated HBASE-20119:
-----------------------------------
    Description: 
The way to add cp to TableDescriptorBuilder is shown below.
{code:java}
public TableDescriptorBuilder addCoprocessor(String className) throws 
IOException {
  return addCoprocessor(className, null, Coprocessor.PRIORITY_USER, null);
}

public TableDescriptorBuilder addCoprocessor(String className, Path jarFilePath,
        int priority, final Map<String, String> kvs) throws IOException {
  desc.addCoprocessor(className, jarFilePath, priority, kvs);
  return this;
}

public TableDescriptorBuilder addCoprocessorWithSpec(final String specStr) 
throws IOException {
  desc.addCoprocessorWithSpec(specStr);
  return this;
}{code}
When loading our config to create table with multiple cps, we have to write the 
ugly for-loop.
{code:java}
val builder = TableDescriptorBuilder.newBuilde(tableName)
  .setAAA()
  .setBBB()
cps.map(toHBaseCp).foreach(builder.addCoprocessor)
cfs.map(toHBaseCf).foreach(builder.addColumnFamily)
admin.createTable(builder.build())

{code}
If we introduce a pojo to carry the cp data and add the method accepting 
multiple cps and cfs, it is easier to exercise the fluent interface of 
TableDescriptorBuilder.
{code:java}
admin.createTable(TableDescriptorBuilder.newBuilde(tableName)
.addCoprocessor(cps.map(toHBaseCp).asJavaCollection)
.addColumnFamily(cf.map(toHBaseCf).asJavaCollection)
.setAAA()
.setBBB()
.build){code}
 

 

  was:
The way to add cp to TableDescriptorBuilder is shown below.
{code:java}
public TableDescriptorBuilder addCoprocessor(String className) throws 
IOException {
  return addCoprocessor(className, null, Coprocessor.PRIORITY_USER, null);
}

public TableDescriptorBuilder addCoprocessor(String className, Path jarFilePath,
        int priority, final Map<String, String> kvs) throws IOException {
  desc.addCoprocessor(className, jarFilePath, priority, kvs);
  return this;
}

public TableDescriptorBuilder addCoprocessorWithSpec(final String specStr) 
throws IOException {
  desc.addCoprocessorWithSpec(specStr);
  return this;
}{code}
When loading our config to create table with multiple cps, we have to write the 
ugly for-loop.
{code:java}
val builder = TableDescriptorBuilder.newBuilde(tableName)
  .setAAA()
  .setBBB()
cfs.map(cf => ColumnFamilyDescriptorBuilder.of(cf))
   .foreach(builder.addColumnFamily(_))
cps.foreach(builder.addCoprocessor(_))
admin.createTable(builder.build())

{code}
If we introduce a pojo to carry the cp data and add the method accepting 
multiple cps and cfs, it is easier to exercise the fluent interface of 
TableDescriptorBuilder
{code:java}
admin.createTable(TableDescriptorBuilder.newBuilde(tableName)
.addCoprocessor(cps.map(toHBaseCp).asJavaCollection)
.addColumnFamily(cf.map(toHBaseCf).asJavaCollection)
.setAAA()
.setBBB()
.build){code}
 

 


> Introduce a pojo class to carry coprocessor information in order to make 
> TableDescriptorBuilder accept multiple cp at once
> --------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-20119
>                 URL: https://issues.apache.org/jira/browse/HBASE-20119
>             Project: HBase
>          Issue Type: Task
>            Reporter: Chia-Ping Tsai
>            Assignee: Chia-Ping Tsai
>            Priority: Minor
>             Fix For: 2.0.0
>
>
> The way to add cp to TableDescriptorBuilder is shown below.
> {code:java}
> public TableDescriptorBuilder addCoprocessor(String className) throws 
> IOException {
>   return addCoprocessor(className, null, Coprocessor.PRIORITY_USER, null);
> }
> public TableDescriptorBuilder addCoprocessor(String className, Path 
> jarFilePath,
>         int priority, final Map<String, String> kvs) throws IOException {
>   desc.addCoprocessor(className, jarFilePath, priority, kvs);
>   return this;
> }
> public TableDescriptorBuilder addCoprocessorWithSpec(final String specStr) 
> throws IOException {
>   desc.addCoprocessorWithSpec(specStr);
>   return this;
> }{code}
> When loading our config to create table with multiple cps, we have to write 
> the ugly for-loop.
> {code:java}
> val builder = TableDescriptorBuilder.newBuilde(tableName)
>   .setAAA()
>   .setBBB()
> cps.map(toHBaseCp).foreach(builder.addCoprocessor)
> cfs.map(toHBaseCf).foreach(builder.addColumnFamily)
> admin.createTable(builder.build())
> {code}
> If we introduce a pojo to carry the cp data and add the method accepting 
> multiple cps and cfs, it is easier to exercise the fluent interface of 
> TableDescriptorBuilder.
> {code:java}
> admin.createTable(TableDescriptorBuilder.newBuilde(tableName)
> .addCoprocessor(cps.map(toHBaseCp).asJavaCollection)
> .addColumnFamily(cf.map(toHBaseCf).asJavaCollection)
> .setAAA()
> .setBBB()
> .build){code}
>  
>  



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