| /* |
| * 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.drill.exec.server.options; |
| |
| import java.util.Iterator; |
| import java.util.Map.Entry; |
| |
| import org.apache.drill.common.config.DrillConfig; |
| import org.apache.drill.exec.server.options.OptionValue.AccessibleScopes; |
| import org.apache.drill.exec.server.options.OptionValue.OptionScope; |
| |
| import com.typesafe.config.ConfigValue; |
| |
| public class DrillConfigIterator implements Iterable<OptionValue> { |
| static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(DrillConfigIterator.class); |
| |
| DrillConfig c; |
| public DrillConfigIterator(DrillConfig c){ |
| this.c = c; |
| } |
| |
| @Override |
| public Iterator<OptionValue> iterator() { |
| return new Iter(c); |
| } |
| |
| public class Iter implements Iterator<OptionValue>{ |
| |
| Iterator<Entry<String, ConfigValue>> entries; |
| public Iter(DrillConfig c){ |
| entries = c.entrySet().iterator(); |
| } |
| @Override |
| public boolean hasNext() { |
| return entries.hasNext(); |
| } |
| |
| @Override |
| public OptionValue next() { |
| final Entry<String, ConfigValue> e = entries.next(); |
| final ConfigValue cv = e.getValue(); |
| final String name = e.getKey(); |
| OptionValue optionValue = null; |
| switch(cv.valueType()) { |
| case BOOLEAN: |
| optionValue = OptionValue.create(AccessibleScopes.BOOT, name, (Boolean) cv.unwrapped(), OptionScope.BOOT); |
| break; |
| |
| case LIST: |
| case OBJECT: |
| case STRING: |
| optionValue = OptionValue.create(AccessibleScopes.BOOT, name, cv.render(),OptionScope.BOOT); |
| break; |
| |
| case NUMBER: |
| optionValue = OptionValue.create(OptionValue.AccessibleScopes.BOOT, name, ((Number) cv.unwrapped()).longValue(),OptionScope.BOOT); |
| break; |
| |
| case NULL: |
| throw new IllegalStateException("Config value \"" + name + "\" has NULL type"); |
| |
| default: |
| throw new IllegalStateException("Unknown type: " + cv.valueType()); |
| } |
| |
| return optionValue; |
| } |
| |
| @Override |
| public void remove() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| } |
| |
| } |