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Copyright 2013 Cloudera Inc. Licensed 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 com.cloudera.cdk.maven.plugins;
Create a named dataset whose entries conform to a defined schema.
@Mojo(name = "create-dataset", requiresProject = false)
public class CreateDatasetMojo extends AbstractDatasetMojo {

  
The name of the dataset to create.
  @Parameter(property = "cdk.datasetName", required = true)
  private String datasetName;

  
The file containing the Avro schema. If no file with the specified name is found on the local filesystem, then the classpath is searched for a matching resource.
  @Parameter(property = "cdk.avroSchemaFile", required = true)
  private String avroSchemaFile;

  
The file format (avro or parquet).
  @Parameter(property = "cdk.format")
  private String format = ..getName();

  
The partition expression, in JEXL format (experimental).
  @Parameter(property = "cdk.partitionExpression")
  public void execute() throws MojoExecutionExceptionMojoFailureException {
    DatasetDescriptor.Builder descriptorBuilder = new DatasetDescriptor.Builder();
    File avroSchema = new File();
    try {
      if (avroSchema.exists()) {
        descriptorBuilder.schema(avroSchema);
      } else {
        descriptorBuilder.schema(Resources.getResource().openStream());
      }
    } catch (IOException e) {
      throw new MojoExecutionException("Problem while reading file " + e);
    }
    if (.equals(..getName())) {
      descriptorBuilder.format(.);
    } else if (.equals(..getName())) {
      descriptorBuilder.format(.);
    } else {
      throw new MojoExecutionException("Unrecognized format: " + );
    }
    if ( != null) {
      descriptorBuilder.partitionStrategy(Accessor.getDefault().fromExpression());
    }
    repo.create(descriptorBuilder.get());
  }
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