co.cask.tigon.sql.internal.DefaultInputFlowletConfigurer Maven / Gradle / Ivy
/*
* Copyright © 2014 Cask Data, 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 co.cask.tigon.sql.internal;
import co.cask.tigon.sql.flowlet.AbstractInputFlowlet;
import co.cask.tigon.sql.flowlet.InputFlowletConfigurer;
import co.cask.tigon.sql.flowlet.InputFlowletSpecification;
import co.cask.tigon.sql.flowlet.InputStreamFormat;
import co.cask.tigon.sql.flowlet.StreamSchema;
import com.google.common.base.Preconditions;
import com.google.common.collect.Maps;
import java.util.AbstractMap;
import java.util.Map;
/**
* Default InputFlowletConfigurer.
*/
public class DefaultInputFlowletConfigurer implements InputFlowletConfigurer {
private final Map> inputStreamSchemas = Maps.newHashMap();
private final Map sqlMap = Maps.newHashMap();
private String name;
private String description;
public DefaultInputFlowletConfigurer(AbstractInputFlowlet flowlet) {
this.name = flowlet.getClass().getSimpleName();
this.description = "";
}
@Override
public void setName(String name) {
Preconditions.checkArgument(name != null, "Name cannot be null.");
this.name = name;
}
@Override
public void setDescription(String description) {
this.description = description;
}
@Override
public void addGDATInput(String name, StreamSchema schema) {
checkInputName(name);
this.inputStreamSchemas.put(name, new AbstractMap.SimpleEntry(
InputStreamFormat.GDAT, schema));
}
@Override
public void addJSONInput(String name, StreamSchema schema) {
checkInputName(name);
this.inputStreamSchemas.put(name, new AbstractMap.SimpleEntry(
InputStreamFormat.JSON, schema));
}
@Override
public void addQuery(String outputName, String sql) {
Preconditions.checkArgument(outputName != null, "Output Name cannot be null.");
Preconditions.checkState(!sqlMap.containsKey(outputName), "Output Name already exists.");
this.sqlMap.put(outputName, sql);
}
public InputFlowletSpecification createInputFlowletSpec() {
return new DefaultInputFlowletSpecification(name, description, inputStreamSchemas, sqlMap);
}
private void checkInputName(String name) {
Preconditions.checkArgument(name != null, "Input Name cannot be null.");
Preconditions.checkState(!inputStreamSchemas.containsKey(name));
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy