org.apache.kylin.common.util.ExecutableApplication Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.kylin.common.util;
import static org.apache.kylin.common.exception.CommonErrorCode.FAILED_EXECUTE_SHELL;
import static org.apache.kylin.common.exception.CommonErrorCode.FAILED_PARSE_SHELL;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.kylin.common.exception.KylinException;
public abstract class ExecutableApplication implements Application {
protected abstract Options getOptions();
protected abstract void execute(OptionsHelper optionsHelper) throws Exception;
public OptionsHelper convertToOptionsHelper(String[] args) {
OptionsHelper optionsHelper = new OptionsHelper();
try {
optionsHelper.parseOptions(getOptions(), args);
} catch (ParseException e) {
optionsHelper.printUsage("error parsing args ", getOptions());
throw new KylinException(FAILED_PARSE_SHELL, "error parsing args", e);
}
return optionsHelper;
}
public void execute(String[] args) {
OptionsHelper optionsHelper = convertToOptionsHelper(args);
try {
execute(optionsHelper);
} catch (Exception e) {
throw new KylinException(FAILED_EXECUTE_SHELL, "error execute " + this.getClass().getName(), e);
}
}
}