| /* |
| * 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 org.apache.drill.common.exceptions.UserException; |
| import org.apache.drill.exec.server.options.OptionValue.Kind; |
| |
| import java.util.Iterator; |
| |
| /** |
| * This {@link OptionManager} implements some the basic methods and should be |
| * extended by concrete implementations. |
| */ |
| |
| public abstract class BaseOptionManager implements OptionManager { |
| private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(BaseOptionManager.class); |
| |
| /** |
| * Gets the current option value given a validator. |
| * |
| * @param validator the validator |
| * @return option value |
| * @throws IllegalArgumentException - if the validator is not found |
| */ |
| private OptionValue getOptionSafe(OptionValidator validator) { |
| final String optionName = validator.getOptionName(); |
| OptionValue value = getOption(optionName); |
| return value == null ? getDefault(optionName) : value; |
| } |
| |
| @Override |
| public boolean getOption(TypeValidators.BooleanValidator validator) { |
| return getOptionSafe(validator).bool_val; |
| } |
| |
| @Override |
| public double getOption(TypeValidators.DoubleValidator validator) { |
| return getOptionSafe(validator).float_val; |
| } |
| |
| @Override |
| public long getOption(TypeValidators.LongValidator validator) { |
| return getOptionSafe(validator).num_val; |
| } |
| |
| @Override |
| public String getOption(TypeValidators.StringValidator validator) { |
| return getOptionSafe(validator).string_val; |
| } |
| |
| @Override |
| public boolean getBoolean(String name) { |
| return getByType(name, Kind.BOOLEAN).bool_val; |
| } |
| |
| @Override |
| public int getInt(String name) { |
| return (int) getLong(name); |
| } |
| |
| @Override |
| public long getLong(String name) { |
| return getByType(name, Kind.LONG).num_val; |
| } |
| |
| @Override |
| public double getDouble(String name) { |
| return getByType(name, Kind.DOUBLE).float_val; |
| } |
| |
| @Override |
| public String getString(String name) { |
| return getByType(name, Kind.STRING).string_val; |
| } |
| |
| private OptionValue getByType(String name, Kind dataType) { |
| OptionValue value = getOption(name); |
| if (value == null) { |
| throw UserException.systemError(null) |
| .addContext("Undefined option: " + name) |
| .build(logger); |
| } |
| if (value.kind != dataType) { |
| throw UserException.systemError(null) |
| .addContext("Option " + name + " is of data type " + |
| value.kind + " but was requested as " + dataType) |
| .build(logger); |
| } |
| return value; |
| } |
| |
| @Override |
| public OptionList getInternalOptionList() { |
| return getAllOptionList(true); |
| } |
| |
| @Override |
| public OptionList getPublicOptionList() { |
| return getAllOptionList(false); |
| } |
| |
| @Override |
| public void setLocalOption(final String name, final boolean value) { |
| setLocalOption(name, Boolean.valueOf(value)); |
| } |
| |
| @Override |
| public void setLocalOption(final String name, final long value) { |
| setLocalOption(name, Long.valueOf(value)); |
| } |
| |
| @Override |
| public void setLocalOption(final String name, final double value) { |
| setLocalOption(name, Double.valueOf(value)); |
| } |
| |
| @Override |
| public void setLocalOption(final String name, final String value) { |
| setLocalOption(name, (Object) value); |
| } |
| |
| @Override |
| public void setLocalOption(final String name, final Object value) { |
| final OptionDefinition definition = getOptionDefinition(name); |
| final OptionValidator validator = definition.getValidator(); |
| final OptionMetaData metaData = definition.getMetaData(); |
| final OptionValue.AccessibleScopes type = definition.getMetaData().getAccessibleScopes(); |
| final OptionValue.OptionScope scope = getScope(); |
| checkOptionPermissions(name, type, scope); |
| final OptionValue optionValue = OptionValue.create(type, name, value, scope); |
| validator.validate(optionValue, metaData, this); |
| setLocalOptionHelper(optionValue); |
| } |
| |
| @Override |
| public void setLocalOption(final OptionValue.Kind kind, final String name, final String valueStr) { |
| Object value; |
| |
| switch (kind) { |
| case LONG: |
| value = Long.valueOf(valueStr); |
| break; |
| case DOUBLE: |
| value = Double.valueOf(valueStr); |
| break; |
| case STRING: |
| value = valueStr; |
| break; |
| case BOOLEAN: |
| value = Boolean.valueOf(valueStr); |
| break; |
| default: |
| throw new IllegalArgumentException(String.format("Unsupported kind %s", kind)); |
| } |
| |
| setLocalOption(name, value); |
| } |
| |
| private static void checkOptionPermissions(String name, OptionValue.AccessibleScopes type, OptionValue.OptionScope scope) { |
| if (!type.inScopeOf(scope)) { |
| throw UserException.permissionError() |
| .message(String.format("Cannot change option %s in scope %s", name, scope)) |
| .build(logger); |
| } |
| } |
| |
| abstract protected void setLocalOptionHelper(OptionValue optionValue); |
| |
| abstract protected OptionValue.OptionScope getScope(); |
| |
| private OptionList getAllOptionList(boolean internal) |
| { |
| Iterator<OptionValue> values = this.iterator(); |
| OptionList optionList = new OptionList(); |
| |
| while (values.hasNext()) { |
| OptionValue value = values.next(); |
| |
| if (getOptionDefinition(value.getName()).getMetaData().isInternal() == internal) { |
| optionList.add(value); |
| } |
| } |
| |
| return optionList; |
| } |
| } |