com.datastax.oss.driver.internal.core.config.composite.CompositeDriverExecutionProfile Maven / Gradle / Ivy
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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 com.datastax.oss.driver.internal.core.config.composite;
import com.datastax.oss.driver.api.core.config.DriverConfig;
import com.datastax.oss.driver.api.core.config.DriverExecutionProfile;
import com.datastax.oss.driver.api.core.config.DriverOption;
import com.datastax.oss.driver.shaded.guava.common.base.Preconditions;
import com.datastax.oss.driver.shaded.guava.common.collect.ImmutableSortedSet;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
import java.time.Duration;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.SortedSet;
import java.util.TreeSet;
import java.util.function.BiFunction;
public class CompositeDriverExecutionProfile implements DriverExecutionProfile {
private final DriverConfig primaryConfig;
private final DriverConfig fallbackConfig;
private final String profileName;
@Nullable private volatile DriverExecutionProfile primaryProfile;
@Nullable private volatile DriverExecutionProfile fallbackProfile;
public CompositeDriverExecutionProfile(
@NonNull DriverConfig primaryConfig,
@NonNull DriverConfig fallbackConfig,
@NonNull String profileName) {
this.primaryConfig = Objects.requireNonNull(primaryConfig);
this.fallbackConfig = Objects.requireNonNull(fallbackConfig);
this.profileName = Objects.requireNonNull(profileName);
refreshInternal();
}
/**
* Fetches the underlying profiles again from the two backing configs. This is because some config
* implementations support adding/removing profiles at runtime.
*
* For efficiency reasons this is only done when the user fetches the profile again from the
* main config, not every time an option is fetched from the profile.
*/
public CompositeDriverExecutionProfile refresh() {
return refreshInternal();
}
// This method only exists to avoid calling its public, overridable variant from the constructor
private CompositeDriverExecutionProfile refreshInternal() {
// There's no `hasProfile()` in the public API because it didn't make sense until now. So
// unfortunately we have to catch the exception.
try {
primaryProfile = primaryConfig.getProfile(profileName);
} catch (IllegalArgumentException e) {
primaryProfile = null;
}
try {
fallbackProfile = fallbackConfig.getProfile(profileName);
} catch (IllegalArgumentException e) {
fallbackProfile = null;
}
Preconditions.checkArgument(
primaryProfile != null || fallbackProfile != null,
"Unknown profile '%s'. Check your configuration.",
profileName);
return this;
}
@NonNull
@Override
public String getName() {
return profileName;
}
@Override
public boolean isDefined(@NonNull DriverOption option) {
DriverExecutionProfile primaryProfile = this.primaryProfile;
if (primaryProfile != null && primaryProfile.isDefined(option)) {
return true;
} else {
DriverExecutionProfile fallbackProfile = this.fallbackProfile;
return fallbackProfile != null && fallbackProfile.isDefined(option);
}
}
@Override
public boolean getBoolean(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getBoolean);
}
@NonNull
@Override
public List getBooleanList(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getBooleanList);
}
@Override
public int getInt(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getInt);
}
@NonNull
@Override
public List getIntList(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getIntList);
}
@Override
public long getLong(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getLong);
}
@NonNull
@Override
public List getLongList(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getLongList);
}
@Override
public double getDouble(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getDouble);
}
@NonNull
@Override
public List getDoubleList(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getDoubleList);
}
@NonNull
@Override
public String getString(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getString);
}
@NonNull
@Override
public List getStringList(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getStringList);
}
@NonNull
@Override
public Map getStringMap(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getStringMap);
}
@Override
public long getBytes(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getBytes);
}
@NonNull
@Override
public List getBytesList(DriverOption option) {
return get(option, DriverExecutionProfile::getBytesList);
}
@NonNull
@Override
public Duration getDuration(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getDuration);
}
@NonNull
@Override
public List getDurationList(@NonNull DriverOption option) {
return get(option, DriverExecutionProfile::getDurationList);
}
private ValueT get(
@NonNull DriverOption option,
BiFunction getter) {
DriverExecutionProfile primaryProfile = this.primaryProfile;
if (primaryProfile != null && primaryProfile.isDefined(option)) {
return getter.apply(primaryProfile, option);
} else {
DriverExecutionProfile fallbackProfile = this.fallbackProfile;
if (fallbackProfile != null && fallbackProfile.isDefined(option)) {
return getter.apply(fallbackProfile, option);
} else {
throw new IllegalArgumentException("Unknown option: " + option);
}
}
}
@NonNull
@Override
public SortedSet> entrySet() {
DriverExecutionProfile primaryProfile = this.primaryProfile;
DriverExecutionProfile fallbackProfile = this.fallbackProfile;
if (primaryProfile != null && fallbackProfile != null) {
SortedSet> result = new TreeSet<>(Map.Entry.comparingByKey());
result.addAll(fallbackProfile.entrySet());
result.addAll(primaryProfile.entrySet());
return ImmutableSortedSet.copyOf(Map.Entry.comparingByKey(), result);
} else if (primaryProfile != null) {
return primaryProfile.entrySet();
} else {
assert fallbackProfile != null;
return fallbackProfile.entrySet();
}
}
}