org.apache.drill.exec.server.options.FragmentOptionsManager.java Source code

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Here is the source code for org.apache.drill.exec.server.options.FragmentOptionsManager.java

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/**
 * 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.List;
import java.util.Map;
import java.util.Map.Entry;

import org.eigenbase.sql.SqlLiteral;

import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Iterables;
import com.google.common.collect.Maps;

public class FragmentOptionsManager implements OptionManager {
    static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(FragmentOptionsManager.class);

    ImmutableMap<String, OptionValue> options;
    OptionManager systemOptions;

    public FragmentOptionsManager(OptionManager systemOptions, OptionList options) {
        Map<String, OptionValue> tmp = Maps.newHashMap();
        for (OptionValue v : options) {
            tmp.put(v.name, v);
        }
        this.options = ImmutableMap.copyOf(tmp);
        this.systemOptions = systemOptions;
    }

    @Override
    public Iterator<OptionValue> iterator() {
        return Iterables.concat(systemOptions, options.values()).iterator();
    }

    @Override
    public OptionValue getOption(String name) {
        OptionValue value = options.get(name);
        if (value == null && systemOptions != null) {
            value = systemOptions.getOption(name);
        }
        return value;
    }

    @Override
    public void setOption(OptionValue value) throws SetOptionException {
        throw new UnsupportedOperationException();
    }

    @Override
    public void setOption(String name, SqlLiteral literal) throws SetOptionException {
        throw new UnsupportedOperationException();
    }

    @Override
    public OptionAdmin getAdmin() {
        throw new UnsupportedOperationException();
    }

    @Override
    public OptionManager getSystemManager() {
        throw new UnsupportedOperationException();
    }

    @Override
    public OptionList getSessionOptionList() {
        throw new UnsupportedOperationException();
    }

}