com.datastax.dse.driver.internal.core.insights.PackageUtil 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.dse.driver.internal.core.insights;
import com.datastax.oss.driver.shaded.guava.common.annotations.VisibleForTesting;
import com.datastax.oss.driver.shaded.guava.common.base.Joiner;
import java.util.Arrays;
import java.util.regex.Pattern;
class PackageUtil {
static final String DEFAULT_SPECULATIVE_EXECUTION_PACKAGE =
"com.datastax.oss.driver.internal.core.specex";
static final String DEFAULT_LOAD_BALANCING_PACKAGE =
"com.datastax.oss.driver.internal.core.loadbalancing";
static final String DEFAULT_AUTH_PROVIDER_PACKAGE = "com.datastax.oss.driver.internal.core.auth";
private static final Pattern PACKAGE_SPLIT_REGEX = Pattern.compile("\\.");
private static final Joiner DOT_JOINER = Joiner.on(".");
static String getNamespace(Class tClass) {
String namespace = "";
Package packageInfo = tClass.getPackage();
if (packageInfo != null) {
namespace = packageInfo.getName();
}
return namespace;
}
static ClassSettingDetails getSpeculativeExecutionDetails(String classSetting) {
return getClassSettingDetails(classSetting, DEFAULT_SPECULATIVE_EXECUTION_PACKAGE);
}
static ClassSettingDetails getLoadBalancingDetails(String classSetting) {
return getClassSettingDetails(classSetting, DEFAULT_LOAD_BALANCING_PACKAGE);
}
static ClassSettingDetails getAuthProviderDetails(String classSetting) {
return getClassSettingDetails(classSetting, DEFAULT_AUTH_PROVIDER_PACKAGE);
}
private static ClassSettingDetails getClassSettingDetails(
String classSetting, String packageName) {
String className = getClassName(classSetting);
String fullPackage = getFullPackageOrDefault(classSetting, packageName);
return new ClassSettingDetails(className, fullPackage);
}
@VisibleForTesting
static String getClassName(String classSetting) {
String[] split = PACKAGE_SPLIT_REGEX.split(classSetting);
if (split.length == 0) {
return "";
}
return split[split.length - 1];
}
@VisibleForTesting
static String getFullPackageOrDefault(String classSetting, String defaultValue) {
String[] split = PACKAGE_SPLIT_REGEX.split(classSetting);
if (split.length <= 1) return defaultValue;
return DOT_JOINER.join(Arrays.copyOf(split, split.length - 1));
}
static class ClassSettingDetails {
private final String className;
private final String fullPackage;
ClassSettingDetails(String className, String fullPackage) {
this.className = className;
this.fullPackage = fullPackage;
}
String getClassName() {
return className;
}
String getFullPackage() {
return fullPackage;
}
}
}