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new 462490f6 [AURON #1339] Introduce AuronConfiguration (#1340)
462490f6 is described below
commit 462490f675282172d9e0c0368a3bc237212a92d8
Author: zhangmang <[email protected]>
AuthorDate: Fri Sep 26 15:15:56 2025 +0800
[AURON #1339] Introduce AuronConfiguration (#1340)
---
auron-core/pom.xml | 65 ++++++++
.../auron/configuration/AuronConfiguration.java | 170 +++++++++++++++++++++
.../apache/auron/configuration/ConfigOption.java | 96 ++++++++++++
.../apache/auron/configuration/ConfigOptions.java | 148 ++++++++++++++++++
.../java/org/apache/auron/util/Preconditions.java | 64 ++++++++
.../configuration/AuronConfigurationTest.java | 51 +++++++
.../auron/configuration/ConfigOptionTest.java | 35 +++++
.../configuration/MockAuronConfiguration.java | 63 ++++++++
pom.xml | 1 +
9 files changed, 693 insertions(+)
diff --git a/auron-core/pom.xml b/auron-core/pom.xml
new file mode 100644
index 00000000..fd07f7b0
--- /dev/null
+++ b/auron-core/pom.xml
@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ~ 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.
+ -->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+ <modelVersion>4.0.0</modelVersion>
+
+ <parent>
+ <groupId>org.apache.auron</groupId>
+ <artifactId>auron-parent_${scalaVersion}</artifactId>
+ <version>${project.version}</version>
+ <relativePath>../pom.xml</relativePath>
+ </parent>
+
+ <artifactId>auron-core</artifactId>
+ <packaging>jar</packaging>
+
+ <dependencies>
+
+ <!-- 'javax.annotation' classes like '@Nullable' -->
+ <dependency>
+ <groupId>com.google.code.findbugs</groupId>
+ <artifactId>jsr305</artifactId>
+ <version>1.3.9</version>
+ </dependency>
+
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <version>4.13.2</version>
+ <scope>test</scope>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-jar-plugin</artifactId>
+ <executions>
+ <execution>
+ <id>prepare-test-jar</id>
+ <goals>
+ <goal>test-jar</goal>
+ </goals>
+ <phase>test-compile</phase>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+</project>
diff --git
a/auron-core/src/main/java/org/apache/auron/configuration/AuronConfiguration.java
b/auron-core/src/main/java/org/apache/auron/configuration/AuronConfiguration.java
new file mode 100644
index 00000000..33861fa8
--- /dev/null
+++
b/auron-core/src/main/java/org/apache/auron/configuration/AuronConfiguration.java
@@ -0,0 +1,170 @@
+/*
+ * 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.auron.configuration;
+
+import java.util.Optional;
+
+/**
+ * Auron configuration base class.
+ */
+public abstract class AuronConfiguration {
+
+ public abstract <T> Optional<T> getOptional(ConfigOption<T> option);
+
+ public abstract <T> Optional<T> getOptional(String key);
+
+ public <T> T get(ConfigOption<T> option) {
+ return getOptional(option).orElseGet(option::defaultValue);
+ }
+
+ /**
+ * Returns the value associated with the given config option as a string.
+ *
+ * @param configOption The configuration option
+ * @return the (default) value associated with the given config option
+ */
+ public String getString(ConfigOption<String> configOption) {
+ return getOptional(configOption).orElseGet(configOption::defaultValue);
+ }
+
+ /**
+ * Returns the value associated with the given config option as a string.
If no value is mapped
+ * under any key of the option, it returns the specified default instead
of the option's default
+ * value.
+ *
+ * @param configOption The configuration option
+ * @return the (default) value associated with the given config option
+ */
+ public String getString(ConfigOption<String> configOption, String
overrideDefault) {
+ return getOptional(configOption).orElse(overrideDefault);
+ }
+
+ /**
+ * Returns the value associated with the given config option as an integer.
+ *
+ * @param configOption The configuration option
+ * @return the (default) value associated with the given config option
+ */
+ public int getInteger(ConfigOption<Integer> configOption) {
+ return getOptional(configOption).orElseGet(configOption::defaultValue);
+ }
+
+ /**
+ * Returns the value associated with the given config option as an
integer. If no value is
+ * mapped under any key of the option, it returns the specified default
instead of the option's
+ * default value.
+ *
+ * @param configOption The configuration option
+ * @param overrideDefault The value to return if no value was mapper for
any key of the option
+ * @return the configured value associated with the given config option,
or the overrideDefault
+ */
+ public int getInteger(ConfigOption<Integer> configOption, int
overrideDefault) {
+ return getOptional(configOption).orElse(overrideDefault);
+ }
+
+ /**
+ * Returns the value associated with the given config option as a long
integer.
+ *
+ * @param configOption The configuration option
+ * @return the (default) value associated with the given config option
+ */
+ public long getLong(ConfigOption<Long> configOption) {
+ return getOptional(configOption).orElseGet(configOption::defaultValue);
+ }
+
+ /**
+ * Returns the value associated with the given config option as a long
integer. If no value is
+ * mapped under any key of the option, it returns the specified default
instead of the option's
+ * default value.
+ *
+ * @param configOption The configuration option
+ * @param overrideDefault The value to return if no value was mapper for
any key of the option
+ * @return the configured value associated with the given config option,
or the overrideDefault
+ */
+ public long getLong(ConfigOption<Long> configOption, long overrideDefault)
{
+ return getOptional(configOption).orElse(overrideDefault);
+ }
+
+ /**
+ * Returns the value associated with the given config option as a boolean.
+ *
+ * @param configOption The configuration option
+ * @return the (default) value associated with the given config option
+ */
+ public boolean getBoolean(ConfigOption<Boolean> configOption) {
+ return getOptional(configOption).orElseGet(configOption::defaultValue);
+ }
+
+ /**
+ * Returns the value associated with the given config option as a boolean.
If no value is mapped
+ * under any key of the option, it returns the specified default instead
of the option's default
+ * value.
+ *
+ * @param configOption The configuration option
+ * @param overrideDefault The value to return if no value was mapper for
any key of the option
+ * @return the configured value associated with the given config option,
or the overrideDefault
+ */
+ public boolean getBoolean(ConfigOption<Boolean> configOption, boolean
overrideDefault) {
+ return getOptional(configOption).orElse(overrideDefault);
+ }
+
+ /**
+ * Returns the value associated with the given config option as a float.
+ *
+ * @param configOption The configuration option
+ * @return the (default) value associated with the given config option
+ */
+ public float getFloat(ConfigOption<Float> configOption) {
+ return getOptional(configOption).orElseGet(configOption::defaultValue);
+ }
+
+ /**
+ * Returns the value associated with the given config option as a float.
If no value is mapped
+ * under any key of the option, it returns the specified default instead
of the option's default
+ * value.
+ *
+ * @param configOption The configuration option
+ * @param overrideDefault The value to return if no value was mapper for
any key of the option
+ * @return the configured value associated with the given config option,
or the overrideDefault
+ */
+ public float getFloat(ConfigOption<Float> configOption, float
overrideDefault) {
+ return getOptional(configOption).orElse(overrideDefault);
+ }
+
+ /**
+ * Returns the value associated with the given config option as a {@code
double}.
+ *
+ * @param configOption The configuration option
+ * @return the (default) value associated with the given config option
+ */
+ public double getDouble(ConfigOption<Double> configOption) {
+ return getOptional(configOption).orElseGet(configOption::defaultValue);
+ }
+
+ /**
+ * Returns the value associated with the given config option as a {@code
double}. If no value is
+ * mapped under any key of the option, it returns the specified default
instead of the option's
+ * default value.
+ *
+ * @param configOption The configuration option
+ * @param overrideDefault The value to return if no value was mapper for
any key of the option
+ * @return the configured value associated with the given config option,
or the overrideDefault
+ */
+ public double getDouble(ConfigOption<Double> configOption, double
overrideDefault) {
+ return getOptional(configOption).orElse(overrideDefault);
+ }
+}
diff --git
a/auron-core/src/main/java/org/apache/auron/configuration/ConfigOption.java
b/auron-core/src/main/java/org/apache/auron/configuration/ConfigOption.java
new file mode 100644
index 00000000..3c93c4e5
--- /dev/null
+++ b/auron-core/src/main/java/org/apache/auron/configuration/ConfigOption.java
@@ -0,0 +1,96 @@
+/*
+ * 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.auron.configuration;
+
+import static org.apache.auron.util.Preconditions.checkNotNull;
+
+/**
+ * A {@code ConfigOption} describes a configuration parameter. It encapsulates
the configuration
+ * key, and an optional default value for the configuration parameter.
+ * Refer to the design of the Flink engine.
+ *
+ * <p>{@code ConfigOptions} are built via the {@link ConfigOptions} class.
Once created, a config
+ * option is immutable.
+ *
+ * @param <T> The type of value associated with the configuration option.
+ */
+public class ConfigOption<T> {
+
+ public static final String EMPTY_DESCRIPTION = "";
+
+ /** The current key for that config option. */
+ private final String key;
+
+ /** The default value for this option. */
+ private final T defaultValue;
+
+ /** The description for this option. */
+ private final String description;
+
+ /**
+ * Type of the value that this ConfigOption describes.
+ *
+ * <ul>
+ * <li>typeClass == atomic class (e.g. {@code Integer.class}) -> {@code
ConfigOption<Integer>}
+ * <li>typeClass == {@code Map.class} -> {@code ConfigOption<Map<String,
String>>}
+ * <li>typeClass == atomic class and isList == true for {@code
ConfigOption<List<Integer>>}
+ * </ul>
+ */
+ private final Class<?> clazz;
+
+ /**
+ * Creates a new config option with fallback keys.
+ *
+ * @param key The current key for that config option
+ * @param clazz describes type of the ConfigOption, see description of the
clazz field
+ * @param description Description for that option
+ * @param defaultValue The default value for this option
+ */
+ ConfigOption(String key, Class<?> clazz, T defaultValue, String
description) {
+ this.key = checkNotNull(key);
+ this.description = description;
+ this.defaultValue = defaultValue;
+ this.clazz = checkNotNull(clazz);
+ }
+
+ /**
+ * Gets the configuration key.
+ *
+ * @return The configuration key
+ */
+ public String key() {
+ return key;
+ }
+
+ /**
+ * Checks if this option has a default value.
+ *
+ * @return True if it has a default value, false if not.
+ */
+ public boolean hasDefaultValue() {
+ return defaultValue != null;
+ }
+
+ /**
+ * Returns the default value, or null, if there is no default value.
+ *
+ * @return The default value, or null.
+ */
+ public T defaultValue() {
+ return defaultValue;
+ }
+}
diff --git
a/auron-core/src/main/java/org/apache/auron/configuration/ConfigOptions.java
b/auron-core/src/main/java/org/apache/auron/configuration/ConfigOptions.java
new file mode 100644
index 00000000..517eb926
--- /dev/null
+++ b/auron-core/src/main/java/org/apache/auron/configuration/ConfigOptions.java
@@ -0,0 +1,148 @@
+/*
+ * 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.auron.configuration;
+
+import static org.apache.auron.util.Preconditions.checkNotNull;
+
+/**
+ * Refer to the design of the Flink engine.
+ * {@code ConfigOptions} are used to build a {@link ConfigOption}. The option
is typically built in
+ * one of the following pattern:
+ *
+ * <pre>{@code
+ * // simple string-valued option with a default value
+ * ConfigOption<String> tempDirs = ConfigOptions
+ * .key("tmp.dir")
+ * .stringType()
+ * .defaultValue("/tmp");
+ *
+ * // simple integer-valued option with a default value
+ * ConfigOption<Integer> batchSize = ConfigOptions
+ * .key("batch.size")
+ * .intType()
+ * .defaultValue(100);
+ *
+ * // option with no default value
+ * ConfigOption<String> userName = ConfigOptions
+ * .key("user.name")
+ * .stringType()
+ * .noDefaultValue();
+ * }</pre>
+ */
+public class ConfigOptions {
+
+ /**
+ * Starts building a new {@link ConfigOption}.
+ *
+ * @param key The key for the config option.
+ * @return The builder for the config option with the given key.
+ */
+ public static OptionBuilder key(String key) {
+ checkNotNull(key);
+ return new OptionBuilder(key);
+ }
+
+ // ------------------------------------------------------------------------
+
+ /**
+ * The option builder is used to create a {@link ConfigOption}. It is
instantiated via {@link
+ * ConfigOptions#key(String)}.
+ */
+ public static final class OptionBuilder {
+
+ /** The key for the config option. */
+ private final String key;
+
+ /**
+ * Creates a new OptionBuilder.
+ *
+ * @param key The key for the config option
+ */
+ OptionBuilder(String key) {
+ this.key = key;
+ }
+
+ /** Defines that the value of the option should be of {@link Boolean}
type. */
+ public TypedConfigOptionBuilder<Boolean> booleanType() {
+ return new TypedConfigOptionBuilder<>(key, Boolean.class);
+ }
+
+ /** Defines that the value of the option should be of {@link Integer}
type. */
+ public TypedConfigOptionBuilder<Integer> intType() {
+ return new TypedConfigOptionBuilder<>(key, Integer.class);
+ }
+
+ /** Defines that the value of the option should be of {@link Long}
type. */
+ public TypedConfigOptionBuilder<Long> longType() {
+ return new TypedConfigOptionBuilder<>(key, Long.class);
+ }
+
+ /** Defines that the value of the option should be of {@link Float}
type. */
+ public TypedConfigOptionBuilder<Float> floatType() {
+ return new TypedConfigOptionBuilder<>(key, Float.class);
+ }
+
+ /** Defines that the value of the option should be of {@link Double}
type. */
+ public TypedConfigOptionBuilder<Double> doubleType() {
+ return new TypedConfigOptionBuilder<>(key, Double.class);
+ }
+
+ /** Defines that the value of the option should be of {@link String}
type. */
+ public TypedConfigOptionBuilder<String> stringType() {
+ return new TypedConfigOptionBuilder<>(key, String.class);
+ }
+ }
+
+ /**
+ * Builder for {@link ConfigOption} with a defined atomic type.
+ *
+ * @param <T> atomic type of the option
+ */
+ public static class TypedConfigOptionBuilder<T> {
+ private final String key;
+ private final Class<T> clazz;
+
+ TypedConfigOptionBuilder(String key, Class<T> clazz) {
+ this.key = key;
+ this.clazz = clazz;
+ }
+
+ /**
+ * Creates a ConfigOption with the given default value.
+ *
+ * @param value The default value for the config option
+ * @return The config option with the default value.
+ */
+ public ConfigOption<T> defaultValue(T value) {
+ return new ConfigOption<>(key, clazz, value,
ConfigOption.EMPTY_DESCRIPTION);
+ }
+
+ /**
+ * Creates a ConfigOption without a default value.
+ *
+ * @return The config option without a default value.
+ */
+ public ConfigOption<T> noDefaultValue() {
+ return new ConfigOption<>(key, clazz, null,
ConfigOption.EMPTY_DESCRIPTION);
+ }
+ }
+
+ // ------------------------------------------------------------------------
+
+ /** Not intended to be instantiated. */
+ private ConfigOptions() {}
+}
diff --git a/auron-core/src/main/java/org/apache/auron/util/Preconditions.java
b/auron-core/src/main/java/org/apache/auron/util/Preconditions.java
new file mode 100644
index 00000000..2144f88f
--- /dev/null
+++ b/auron-core/src/main/java/org/apache/auron/util/Preconditions.java
@@ -0,0 +1,64 @@
+/*
+ * 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.auron.util;
+
+import javax.annotation.Nullable;
+
+/**
+ * A collection of static utility methods to validate input.
+ *
+ * <p>This class is modelled after Google Guava's Preconditions class, and
partly takes code from
+ * that class. We add this code to the Auron code base in order to reduce
external dependencies.
+ */
+public class Preconditions {
+
+ // ------------------------------------------------------------------------
+ // Null checks
+ // ------------------------------------------------------------------------
+
+ /**
+ * Ensures that the given object reference is not null. Upon violation, a
{@code
+ * NullPointerException} with no message is thrown.
+ *
+ * @param reference The object reference
+ * @return The object reference itself (generically typed).
+ * @throws NullPointerException Thrown, if the passed reference was null.
+ */
+ public static <T> T checkNotNull(@Nullable T reference) {
+ if (reference == null) {
+ throw new NullPointerException();
+ }
+ return reference;
+ }
+
+ /**
+ * Ensures that the given object reference is not null. Upon violation, a
{@code
+ * NullPointerException} with the given message is thrown.
+ *
+ * @param reference The object reference
+ * @param errorMessage The message for the {@code NullPointerException}
that is thrown if the
+ * check fails.
+ * @return The object reference itself (generically typed).
+ * @throws NullPointerException Thrown, if the passed reference was null.
+ */
+ public static <T> T checkNotNull(@Nullable T reference, @Nullable String
errorMessage) {
+ if (reference == null) {
+ throw new NullPointerException(String.valueOf(errorMessage));
+ }
+ return reference;
+ }
+}
diff --git
a/auron-core/src/test/java/org/apache/auron/configuration/AuronConfigurationTest.java
b/auron-core/src/test/java/org/apache/auron/configuration/AuronConfigurationTest.java
new file mode 100644
index 00000000..14c0b0b3
--- /dev/null
+++
b/auron-core/src/test/java/org/apache/auron/configuration/AuronConfigurationTest.java
@@ -0,0 +1,51 @@
+/*
+ * 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.auron.configuration;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * This is a test class for {@link AuronConfiguration}.
+ */
+public class AuronConfigurationTest {
+
+ private MockAuronConfiguration config;
+
+ @Before
+ public void setUp() {
+ config = new MockAuronConfiguration();
+
config.addConfig(MockAuronConfiguration.STRING_WITHOUT_DEFAULT_CONFIG_OPTION.key(),
"str1");
+ config.addConfig(MockAuronConfiguration.INT_CONFIG_OPTION.key(), 100);
+ config.addConfig(MockAuronConfiguration.BOOLEAN_CONFIG_OPTION.key(),
false);
+ config.addConfig(MockAuronConfiguration.DOUBLE_CONFIG_OPTION.key(),
99.9);
+ config.addConfig(MockAuronConfiguration.LONG_CONFIG_OPTION.key(),
10000000000L);
+ config.addConfig(MockAuronConfiguration.FLOAT_CONFIG_OPTION.key(),
1.2f);
+ }
+
+ @Test
+ public void testGetConfig() {
+ Assert.assertEquals("str1",
config.get(MockAuronConfiguration.STRING_WITHOUT_DEFAULT_CONFIG_OPTION));
+ Assert.assertEquals("zm",
config.get(MockAuronConfiguration.STRING_CONFIG_OPTION));
+ Assert.assertEquals(100,
config.getInteger(MockAuronConfiguration.INT_CONFIG_OPTION));
+ Assert.assertEquals(false,
config.get(MockAuronConfiguration.BOOLEAN_CONFIG_OPTION));
+ Assert.assertEquals(99.9,
config.get(MockAuronConfiguration.DOUBLE_CONFIG_OPTION), 0.0000000001);
+ Assert.assertEquals(10000000000L,
config.getLong(MockAuronConfiguration.LONG_CONFIG_OPTION));
+ Assert.assertEquals(1.2f,
config.get(MockAuronConfiguration.FLOAT_CONFIG_OPTION), 0.0000000001);
+ }
+}
diff --git
a/auron-core/src/test/java/org/apache/auron/configuration/ConfigOptionTest.java
b/auron-core/src/test/java/org/apache/auron/configuration/ConfigOptionTest.java
new file mode 100644
index 00000000..e71c34cd
--- /dev/null
+++
b/auron-core/src/test/java/org/apache/auron/configuration/ConfigOptionTest.java
@@ -0,0 +1,35 @@
+/*
+ * 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.auron.configuration;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/** Tests for the {@link ConfigOption}. */
+public class ConfigOptionTest {
+
+ @Test
+ public void testConfigOption() {
+ ConfigOption<String> keyOption =
ConfigOptions.key("key").stringType().noDefaultValue();
+ Assert.assertEquals("key", keyOption.key());
+ Assert.assertEquals(null, keyOption.defaultValue());
+ Assert.assertEquals(false, keyOption.hasDefaultValue());
+ ConfigOption<Boolean> booleanOption =
+ ConfigOptions.key("boolean").booleanType().defaultValue(true);
+ Assert.assertEquals(true, booleanOption.defaultValue());
+ }
+}
diff --git
a/auron-core/src/test/java/org/apache/auron/configuration/MockAuronConfiguration.java
b/auron-core/src/test/java/org/apache/auron/configuration/MockAuronConfiguration.java
new file mode 100644
index 00000000..85fbbd88
--- /dev/null
+++
b/auron-core/src/test/java/org/apache/auron/configuration/MockAuronConfiguration.java
@@ -0,0 +1,63 @@
+/*
+ * 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.auron.configuration;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+
+public class MockAuronConfiguration extends AuronConfiguration {
+
+ public static final ConfigOption<String> STRING_CONFIG_OPTION =
+ ConfigOptions.key("string").stringType().defaultValue("zm");
+
+ public static final ConfigOption<String>
STRING_WITHOUT_DEFAULT_CONFIG_OPTION =
+
ConfigOptions.key("string_without_default").stringType().noDefaultValue();
+
+ public static final ConfigOption<Integer> INT_CONFIG_OPTION =
+ ConfigOptions.key("int").intType().defaultValue(1);
+
+ public static final ConfigOption<Long> LONG_CONFIG_OPTION =
+ ConfigOptions.key("long").longType().defaultValue(1L);
+
+ public static final ConfigOption<Boolean> BOOLEAN_CONFIG_OPTION =
+ ConfigOptions.key("boolean").booleanType().defaultValue(true);
+
+ public static final ConfigOption<Double> DOUBLE_CONFIG_OPTION =
+ ConfigOptions.key("double").doubleType().defaultValue(1.0);
+
+ public static final ConfigOption<Float> FLOAT_CONFIG_OPTION =
+ ConfigOptions.key("float").floatType().defaultValue(1.0f);
+
+ private Map<String, Object> configMap = new HashMap<>();
+
+ public MockAuronConfiguration() {}
+
+ public void addConfig(String key, Object value) {
+ configMap.put(key, value);
+ }
+
+ @Override
+ public <T> Optional<T> getOptional(ConfigOption<T> option) {
+ return Optional.ofNullable((T) configMap.get(option.key()));
+ }
+
+ @Override
+ public <T> Optional<T> getOptional(String key) {
+ return Optional.ofNullable((T) configMap.get(key));
+ }
+}
diff --git a/pom.xml b/pom.xml
index 9af72714..36b7b33f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -34,6 +34,7 @@
<url>https://github.com/apache/auron.git</url>
<modules>
+ <module>auron-core</module>
<module>common</module>
<module>spark-version-annotation-macros</module>
<module>spark-extension</module>
