<tool id="gatk2_realigner_target_creator" name="Realigner Target Creator" version="0.0.7">
  <description>for use in local realignment</description>
  <expand macro="requirements" />
  <macros>
    <import>gatk2_macros.xml</import>
  </macros>
  <command interpreter="python">
    gatk2_wrapper.py
    --stdout "${output_log}"
    -d "-I" "${reference_source.input_bam}" "${reference_source.input_bam.ext}" "gatk_input"
    #if str( $reference_source.input_bam.metadata.bam_index ) != "None":
        -d "" "${reference_source.input_bam.metadata.bam_index}" "bam_index" "gatk_input" ##hardcode galaxy ext type as bam_index
    #end if
    -p '
    @JAR_PATH@
    -T "RealignerTargetCreator"
    -o "${output_interval}"

    \$GATK2_SITE_OPTIONS

    ## according to http://www.broadinstitute.org/gatk/guide/article?id=1975
    --num_cpu_threads_per_data_thread 1

    @THREADS@

    #if $reference_source.reference_source_selector != "history":
        -R "${reference_source.ref_file.fields.path}"
    #end if
   '
    #set $rod_binding_names = dict()
    #for $rod_binding in $rod_bind:
        #if str( $rod_binding.rod_bind_type.rod_bind_type_selector ) == 'custom':
            #set $rod_bind_name = $rod_binding.rod_bind_type.custom_rod_name
        #else
            #set $rod_bind_name = $rod_binding.rod_bind_type.rod_bind_type_selector
        #end if
        #set $rod_binding_names[$rod_bind_name] = $rod_binding_names.get( $rod_bind_name, -1 ) + 1
        -d "-known:${rod_bind_name},%(file_type)s" "${rod_binding.rod_bind_type.input_rod}" "${rod_binding.rod_bind_type.input_rod.ext}" "input_${rod_bind_name}_${rod_binding_names[$rod_bind_name]}"
    #end for
   
    #include source=$standard_gatk_options#
    ##start analysis specific options
    #if $analysis_param_type.analysis_param_type_selector == "advanced":
        -p '
        --minReadsAtLocus "${analysis_param_type.minReadsAtLocus}"
        --windowSize "${analysis_param_type.windowSize}"
        --mismatchFraction "${analysis_param_type.mismatchFraction}"
        --maxIntervalSize "${analysis_param_type.maxIntervalSize}"
        '
    #end if
  </command>
  <inputs>
    <conditional name="reference_source">
      <expand macro="reference_source_selector_param" />
      <when value="cached">
        <param name="input_bam" type="data" format="bam" label="BAM file" help="-I,--input_file &amp;lt;input_file&amp;gt;">
          <validator type="unspecified_build" />
          <validator type="dataset_metadata_in_data_table" table_name="gatk2_picard_indexes" metadata_name="dbkey" metadata_column="dbkey" message="Sequences are not currently available for the specified build." /> <!-- fixme!!! this needs to be a select -->
        </param>
        <param name="ref_file" type="select" label="Using reference genome" help="-R,--reference_sequence &amp;lt;reference_sequence&amp;gt;" >
          <options from_data_table="gatk2_picard_indexes">
            <filter type="data_meta" key="dbkey" ref="input_bam" column="dbkey"/>
          </options>
          <validator type="no_options" message="A built-in reference genome is not available for the build associated with the selected input file"/>
        </param>
      </when>
      <when value="history">
        <param name="input_bam" type="data" format="bam" label="BAM file" help="-I,--input_file &amp;lt;input_file&amp;gt;" />
        <param name="ref_file" type="data" format="fasta" label="Using reference file" help="-R,--reference_sequence &amp;lt;reference_sequence&amp;gt;">
          <options>
            <filter type="data_meta" key="dbkey" ref="input_bam" />
          </options>
        </param>
      </when>
    </conditional>
    
    <repeat name="rod_bind" title="Known Variants" help="Using data sets of known variants (-known,--known &amp;lt;known&amp;gt;)">
        <conditional name="rod_bind_type">
          <param name="rod_bind_type_selector" type="select" label="Variant Type">
            <option value="dbsnp" selected="True">dbSNP</option>
            <option value="snps">SNPs</option>  
            <option value="indels">INDELs</option>
            <option value="custom">Custom</option>
          </param>
          <when value="dbsnp">
              <param name="input_rod" type="data" format="vcf" label="Variant file (VCF format)" />
          </when>
          <when value="snps">
              <param name="input_rod" type="data" format="vcf" label="Variant file (VCF format)" />
          </when>
          <when value="indels">
              <param name="input_rod" type="data" format="vcf" label="Variant file (VCF format)" />
          </when>
          <when value="custom">
              <param name="custom_rod_name" type="text" value="Unknown" label="Customer's variant file" />
              <param name="input_rod" type="data" format="vcf" label="Variant file (VCF format)" />
          </when>
        </conditional>
    </repeat>
    
    <expand macro="gatk_param_type_conditional" />
    
    <expand macro="analysis_type_conditional">
        <param name="windowSize" type="integer" value="10" label="Window size for calculating entropy or SNP clusters (windowSize)" help="-window,--windowSize &amp;lt;windowSize&amp;gt;" />
        <param name="mismatchFraction" type="float" value="0.15" label="Fraction of base qualities needing to mismatch for a position to have high entropy (mismatchFraction)" help="to disable set to &lt;= 0 or &gt; 1 (-mismatch,--mismatchFraction &amp;lt;mismatchFraction&amp;gt;)"/>
        <param name="minReadsAtLocus" type="integer" value="4" label="Minimum reads at a locus to enable using the entropy calculation (minReadsAtLocus)" help="-minReads,--minReadsAtLocus &amp;lt;minReadsAtLocus&amp;gt;" />
        <param name="maxIntervalSize" type="integer" value="500" label="Maximum interval size" help="-maxInterval,--maxIntervalSize &amp;lt;maxIntervalSize&amp;gt;" />
    </expand>
  </inputs>
  <outputs>
    <data format="gatk_interval" name="output_interval" label="${tool.name} on ${on_string} (GATK intervals)" />
    <data format="txt" name="output_log" label="${tool.name} on ${on_string} (log)" />
  </outputs>
  <tests>
      <test>
          <param name="reference_source_selector" value="history" />
          <param name="ref_file" value="phiX.fasta" ftype="fasta" />
          <param name="input_bam" value="gatk/fake_phiX_reads_1.bam" ftype="bam" />
          <param name="rod_bind_type_selector" value="dbsnp" />
          <param name="input_rod" value="gatk/fake_phiX_variant_locations.vcf" ftype="vcf" />
          <param name="gatk_param_type_selector" value="basic" />
          <param name="analysis_param_type_selector" value="advanced" />
          <param name="windowSize" value="10" />
          <param name="mismatchFraction" value="0.15" />
          <param name="minReadsAtLocus" value="4" />
          <param name="maxIntervalSize" value="500" />
          <output name="output_interval" file="gatk/gatk_realigner_target_creator/gatk_realigner_target_creator_out_1.gatk_interval" /> 
          <output name="output_log" file="gatk/gatk_realigner_target_creator/gatk_realigner_target_creator_out_1.log.contains" compare="contains"/>
      </test>
  </tests>
  <help>
**What it does**

Emits intervals for the Local Indel Realigner to target for cleaning.  Ignores 454 reads, MQ0 reads, and reads with consecutive indel operators in the CIGAR string.

For more information on local realignment around indels using the GATK, see this `tool specific page &lt;http://www.broadinstitute.org/gatk/gatkdocs/org_broadinstitute_sting_gatk_walkers_indels_RealignerTargetCreator.html&gt;`_.

To learn about best practices for variant detection using GATK, see this `overview &lt;http://www.broadinstitute.org/gatk/guide/topic?name=best-practices&gt;`_.

If you encounter errors, please view the `GATK FAQ &lt;http://www.broadinstitute.org/gatk/guide/topic?name=faqs&gt;`_.

------

**Inputs**

GenomeAnalysisTK: RealignerTargetCreator accepts an aligned BAM input file.


**Outputs**

The output is in GATK Interval format.


Go `here &lt;http://www.broadinstitute.org/gatk/guide/topic?name=intro&gt;`_ for details on GATK file formats.

-------

**Settings**::

 windowSize          window size for calculating entropy or SNP clusters
 mismatchFraction    fraction of base qualities needing to mismatch for a position to have high entropy; to disable set to &lt;= 0 or &gt; 1
 minReadsAtLocus     minimum reads at a locus to enable using the entropy calculation
 maxIntervalSize     maximum interval size

@CITATION_SECTION@
  </help>
</tool>