Add the o.s.b.d.g.core.env.support.CloudCacheService class and ADT modeling the 'cloudcache' service (an instance of PCC) in Pivotal CloudFoundry.
The cloudcache service is backed by Pivotal GemFire and therefore contains additional meta-data used to access the PCC service instacne, such as Pivotal GemFire Locator network endpoints and user credentials required to access the PCC instance bound to any pushed Spring Boot apps.
This commit is contained in:
John Blum
@@ -0,0 +1,342 @@
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/*
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* Copyright 2018 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package org.springframework.boot.data.geode.core.env.support;
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import static org.springframework.data.gemfire.util.RuntimeExceptionFactory.newIllegalArgumentException;
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import java.net.URL;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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import java.util.Optional;
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import java.util.stream.Collectors;
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import org.apache.shiro.util.Assert;
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import org.springframework.boot.data.geode.core.util.ObjectUtils;
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import org.springframework.data.gemfire.GemfireUtils;
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import org.springframework.util.StringUtils;
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/**
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* The CloudCacheService class...
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*
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* @author John Blum
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* @since 1.0.0
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*/
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public class CloudCacheService extends Service {
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/**
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* Factory method used to construct a new {@link CloudCacheService} initialized with the given {@link String name}.
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*
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* @param name {@link String} containing the name of the {@link CloudCacheService}.
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* @throws IllegalArgumentException if the {@link String name} is {@literal null} or empty.
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* @return the new {@link CloudCacheService} with the given {@link String name}.
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* @see #CloudCacheService(String)
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*/
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public static CloudCacheService with(String name) {
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return new CloudCacheService(name);
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}
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private String locators;
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private URL gfshUrl;
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/**
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* Construct a new instance of {@link CloudCacheService} initialized with the given {@link String name}.
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*
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* @param name {@link String} containing the name of the {@link CloudCacheService}.
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* @throws IllegalArgumentException if the {@link String name} is {@literal null} or empty.
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*/
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private CloudCacheService(String name) {
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super(name);
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}
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/**
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* Returns an {@link Optional} Gfsh {@link URL}, if configured, used to connect to Pivotal GemFire's
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* Management REST API (service).
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*
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* @return an {@link Optional} Gfsh {@link URL} used to connect to Pivotal GemFire's Management REST API (service).
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* @see #withGfshUrl(URL)
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* @see java.util.Optional
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* @see java.net.URL
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*/
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public Optional<URL> getGfshUrl() {
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return Optional.ofNullable(this.gfshUrl);
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}
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/**
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* Returns an {@link Optional} {@link String} containing the list of Pivotal GemFire Locator network endpoints.
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*
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* The format of the {@link String}, if present, is {@literal host1[port1],host2[port2], ...,hostN[portN]}.
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*
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* @return an {@link Optional} {@link String} containing the list of Pivotal GemFire Locator network endpoints.
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* @see #withLocators(String)
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*/
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public Optional<String> getLocators() {
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return Optional.ofNullable(this.locators).filter(StringUtils::hasText);
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}
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/**
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* Returns a {@link List} of Pivotal GemFire {@link Locator Locator} network endpoints.
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*
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* Returns an {@link Collections#emptyList() empty List} if no Locators were configured.
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*
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* @return a {@link List} of Pivotal GemFire {@link Locator Locator} network endpoints.
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* @see #getLocators()
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*/
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public List<Locator> getLocatorList() {
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return getLocators()
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.map(Locator::parseLocators)
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.orElseGet(Collections::emptyList);
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}
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/**
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* Builder method used to configure the Gfsh {@link URL} to connect to the Pivotal GemFire
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* Management REST API (service).
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*
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* @param gfshUrl {@link URL} used to connect to the Pivotal GemFire Management REST API (service).
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* @return this {@link CloudCacheService}.
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* @see #getGfshUrl()
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*/
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public CloudCacheService withGfshUrl(URL gfshUrl) {
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this.gfshUrl = gfshUrl;
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return this;
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}
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/**
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* Builder method used to configure the {@link String list of Locator} network endpoints.
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*
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* @param locators {@link String} containing a comma-delimited list of Locator network endpoints
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* of the format: {@literal host1[port1],host2[port2], ...,hostN[portN]}.
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* @return this {@link CloudCacheService}.
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* @see #getLocators()
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*/
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public CloudCacheService withLocators(String locators) {
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this.locators = locators;
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return this;
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}
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static class Locator implements Comparable<Locator> {
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static final int DEFAULT_LOCATOR_PORT = GemfireUtils.DEFAULT_LOCATOR_PORT;
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static final String DEFAULT_LOCATOR_HOST = "localhost";
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private Integer port;
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private String host;
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/**
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* Factory method used to construct a new {@link Locator} on the default {@link String host}
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* and {@link Integer port}.
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*
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* @return a new, default {@link Locator}.
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* @see #newLocator(String, int)
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*/
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static Locator newLocator() {
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return newLocator(DEFAULT_LOCATOR_HOST, DEFAULT_LOCATOR_PORT);
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}
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/**
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* Factory method used to construct a new {@link Locator} running on the default {@link String host}
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* and configured to listen on the given {@link Integer port}.
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*
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* @param port {@link Integer} containing the port number on which the {@link Locator} is listening.
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* @return a new {@link Locator} running on the default {@link String host},
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* listening on the given {@link Integer port}.
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* @throws IllegalArgumentException if the {@link Integer port} is less than {@literal 0}.
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* @see #newLocator(String, int)
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*/
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static Locator newLocator(int port) {
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return newLocator(DEFAULT_LOCATOR_HOST, port);
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}
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/**
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* Factory method used to construct a new {@link Locator} configured to run on the given {@link String host}
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* and listening on the default {@link Integer port}.
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*
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* @param host {@link String} containing the name of the host on which the {@link Locator} is running.
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* @return a new {@link Locator} running on the configured {@link String host},
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* listening on the default {@link Integer port}.
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* @throws IllegalArgumentException if {@link String host} is {@literal null} or empty.
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* @see #newLocator(String, int)
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*/
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static Locator newLocator(String host) {
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return newLocator(host, DEFAULT_LOCATOR_PORT);
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}
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/**
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* Factory method used to construct a new {@link Locator} running on the configured {@link String host}
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* and listening on the configured {@link Integer port}.
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*
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* @param host {@link String} containing the name of the host on which the {@link Locator} is running.
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* @param port {@link Integer} containing the port number on which the {@link Locator} is listening.
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* @throws IllegalArgumentException if {@link String host} is {@literal null} or empty,
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* or the {@link Integer port} is less than {@literal 0}.
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* @return a new {@link Locator} on the configured {@link String host} and {@link Integer port}.
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*/
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static Locator newLocator(String host, int port) {
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Assert.hasText(host, String.format("Host [%s] is required", host));
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Assert.isTrue(port > -1, String.format("Port [%d] must be greater than equal to 0", port));
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return new Locator(host, port);
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}
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/**
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* Factory method used to parse a {@link String comma-delimited list of Locator network endpoints}
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* into a {@link List} of {@link Locator} objects.
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*
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* The {@link String comma-delimited list of Locators} must be formatted as
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* {@literal host1[port1],host2[port2], ...,hostN[portN]}.
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*
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* @param locators {@link String} containing a comma-delimited list of Locator network endpoints.
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* @return a new {@link List} of {@link Locator} objects or an empty {@link List}
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* if no Locators were specified.
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* @throws IllegalArgumentException if an individual Locator {@link String host[port]} is not valid.
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* @see #parse(String)
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*/
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static List<Locator> parseLocators(String locators) {
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return Arrays.stream(String.valueOf(locators).split(","))
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.filter(StringUtils::hasText)
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.map(Locator::parse)
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.collect(Collectors.toList());
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}
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/**
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* Factory method used to parse an individual {@link String host[port]} network endpoint for a Locator.
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*
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* @param hostPort {@link String} containing the Locator host and port to parse.
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* @return a new {@link Locator} configured from the given {@link String}.
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* @throws IllegalArgumentException if the {@link String hostPort} are not valid.
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* @see #parseHost(String)
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* @see #parsePort(String)
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* @see #newLocator(String, int)
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*/
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static Locator parse(String hostPort) {
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return Optional.ofNullable(hostPort)
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.filter(StringUtils::hasText)
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.map(it -> {
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String host = parseHost(it);
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int port = parsePort(it);
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return newLocator(host, port);
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})
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.orElseThrow(() -> newIllegalArgumentException("Locator host/port [%s] is not valid", hostPort));
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}
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private static String parseHost(String value) {
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int index = String.valueOf(value).trim().indexOf("[");
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return index > 0 ? value.trim().substring(0, index).trim()
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: (index != 0 && StringUtils.hasText(value) ? value.trim() : DEFAULT_LOCATOR_HOST);
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}
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private static int parsePort(String value) {
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StringBuilder digits = new StringBuilder();
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for (char chr : String.valueOf(value).toCharArray()) {
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if (Character.isDigit(chr)) {
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digits.append(chr);
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}
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}
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return digits.length() > 0 ? Integer.valueOf(digits.toString()) : DEFAULT_LOCATOR_PORT;
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}
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/**
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* Construct a new {@link Locator} initialized with the {@link String host} and {@link Integer port}
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* on which this {@link Locator} is running and listening for connections.
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*
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* @param host {@link String} containing the name of the host on which this {@link Locator} is running.
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* @param port {@link Integer} specifying the port number on which this {@link Locator} is listening.
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*/
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private Locator(String host, Integer port) {
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this.host = host;
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this.port = port;
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}
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/**
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* Return the {@link String name} of the host on which this {@link Locator} is running.
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*
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* Defaults to {@literal localhost}.
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*
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* @return the {@link String name} of the host on which this {@link Locator} is running.
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*/
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String getHost() {
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return Optional.ofNullable(this.host).filter(StringUtils::hasText).orElse(DEFAULT_LOCATOR_HOST);
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}
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/**
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* Returns the {@link Integer port} on which this {@link Locator} is listening.
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*
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* Defaults to {@literal 10334}.
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*
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* @return the {@link Integer port} on which this {@link Locator} is listening.
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*/
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int getPort() {
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return Optional.ofNullable(this.port).orElse(DEFAULT_LOCATOR_PORT);
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}
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@Override
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@SuppressWarnings("all")
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public int compareTo(Locator other) {
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int result = this.getHost().compareTo(other.getHost());
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return result != 0 ? result : (this.getPort() - other.getPort());
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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}
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if (!(obj instanceof Locator)) {
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return false;
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}
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Locator that = (Locator) obj;
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return this.getHost().equals(that.getHost())
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&& this.getPort() == that.getPort();
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}
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@Override
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public int hashCode() {
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int hashValue = 17;
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hashValue = 37 * hashValue + ObjectUtils.nullSafeHashCode(getHost());
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hashValue = 37 * hashValue + ObjectUtils.nullSafeHashCode(getPort());
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return hashValue;
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}
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@Override
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public String toString() {
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return String.format("%s[%d]", getHost(), getPort());
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}
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}
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}
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@@ -0,0 +1,242 @@
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/*
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* Copyright 2018 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package org.springframework.boot.data.geode.core.env.support;
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import static org.assertj.core.api.Assertions.assertThat;
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import java.net.URL;
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import java.util.List;
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import org.junit.Test;
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/**
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* Unit tests for {@link CloudCacheService}.
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*
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* @author John Blum
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* @see org.junit.Test
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* @see org.springframework.boot.data.geode.core.env.support.CloudCacheService
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* @since 1.0.0
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*/
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public class CloudCacheServiceUnitTests {
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@Test
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public void withServiceNameLocatorsAndUrlReturnsNewCloudCacheService() throws Exception {
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URL gfshUrl = new URL("http://localhost:7070/v1/gemfire");
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CloudCacheService service = CloudCacheService.with("gemfire")
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.withLocators("boombox[123],cardboardbox[456],mailbox[789],xbox[40404]")
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.withGfshUrl(gfshUrl);
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assertThat(service).isNotNull();
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assertThat(service.getName()).isEqualTo("gemfire");
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assertThat(service.getGfshUrl().orElse(null)).isEqualTo(gfshUrl);
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assertThat(service.getLocators().orElse(null))
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.isEqualTo("boombox[123],cardboardbox[456],mailbox[789],xbox[40404]");
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List<CloudCacheService.Locator> locators = service.getLocatorList();
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assertThat(locators).isNotNull();
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assertThat(locators).hasSize(4);
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assertThat(locators.get(0)).isEqualTo(CloudCacheService.Locator.newLocator("boombox", 123));
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assertThat(locators.get(1)).isEqualTo(CloudCacheService.Locator.newLocator("cardboardbox", 456));
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assertThat(locators.get(2)).isEqualTo(CloudCacheService.Locator.newLocator("mailbox", 789));
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assertThat(locators.get(3)).isEqualTo(CloudCacheService.Locator.newLocator("xbox", 40404));
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}
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@Test
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public void parseLocatorWithSingleLetterHostnameAndPort() {
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CloudCacheService.Locator locator = CloudCacheService.Locator.parse("x [10336]");
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assertThat(locator).isNotNull();
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assertThat(locator.getHost()).isEqualTo("x");
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assertThat(locator.getPort()).isEqualTo(10336);
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}
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@Test
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public void parseLocatorWithNoHostnameAndPort() {
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CloudCacheService.Locator locator = CloudCacheService.Locator.parse(" [1 234] ");
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assertThat(locator).isNotNull();
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assertThat(locator.getHost()).isEqualTo(CloudCacheService.Locator.DEFAULT_LOCATOR_HOST);
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assertThat(locator.getPort()).isEqualTo(1234);
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}
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@Test
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public void parseLocatorWithHostnameAndNoPort() {
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CloudCacheService.Locator locator = CloudCacheService.Locator.parse(" chatterbox ");
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assertThat(locator).isNotNull();
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assertThat(locator.getHost()).isEqualTo("chatterbox");
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assertThat(locator.getPort()).isEqualTo(CloudCacheService.Locator.DEFAULT_LOCATOR_PORT);
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}
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private void testParseLocatorWithInvalidHostPort(String hostPort) {
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try {
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CloudCacheService.Locator.parse(hostPort);
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}
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catch (IllegalArgumentException expected) {
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assertThat(expected).hasMessage("Locator host/port [%s] is not valid", hostPort);
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assertThat(expected).hasNoCause();
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throw expected;
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}
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}
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@Test(expected = IllegalArgumentException.class)
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public void parseLocatorWithBlankHostPort() {
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testParseLocatorWithInvalidHostPort(" ");
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}
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@Test(expected = IllegalArgumentException.class)
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public void parseLocatorWithEmptyHostPort() {
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testParseLocatorWithInvalidHostPort("");
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}
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@Test(expected = IllegalArgumentException.class)
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public void parseLocatorWithNullHostPort() {
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testParseLocatorWithInvalidHostPort(null);
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}
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@Test
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public void parseLocatorsWithMultipleLocatorHostsPorts() {
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List<CloudCacheService.Locator> locators =
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CloudCacheService.Locator.parseLocators(" jukebox[12345], matchbox [6789] ");
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assertThat(locators).isNotNull();
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assertThat(locators).hasSize(2);
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assertThat(locators).containsExactly(
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CloudCacheService.Locator.newLocator("jukebox", 12345),
|
||||
CloudCacheService.Locator.newLocator("matchbox", 6789)
|
||||
);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void parseLocatorsWithNoLocatorHostPort() {
|
||||
|
||||
List<CloudCacheService.Locator> locators = CloudCacheService.Locator.parseLocators(" ");
|
||||
|
||||
assertThat(locators).isNotNull();
|
||||
assertThat(locators).isEmpty();
|
||||
}
|
||||
|
||||
@Test
|
||||
public void parseLocatorsWithSingleLocatorHostPort() {
|
||||
|
||||
List<CloudCacheService.Locator> locators = CloudCacheService.Locator.parseLocators("skullbox[2345]");
|
||||
|
||||
assertThat(locators).isNotNull();
|
||||
assertThat(locators).hasSize(1);
|
||||
assertThat(locators).containsExactly(CloudCacheService.Locator.newLocator("skullbox", 2345));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void newLocatorWithHostAndPort() {
|
||||
|
||||
CloudCacheService.Locator locator = CloudCacheService.Locator.newLocator("toybox", 8008);
|
||||
|
||||
assertThat(locator).isNotNull();
|
||||
assertThat(locator.getHost()).isEqualTo("toybox");
|
||||
assertThat(locator.getPort()).isEqualTo(8008);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void newLocatorWithHostname() {
|
||||
|
||||
CloudCacheService.Locator locator = CloudCacheService.Locator.newLocator("unbox");
|
||||
|
||||
assertThat(locator).isNotNull();
|
||||
assertThat(locator.getHost()).isEqualTo("unbox");
|
||||
assertThat(locator.getPort()).isEqualTo(CloudCacheService.Locator.DEFAULT_LOCATOR_PORT);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void newLocatorWithPort() {
|
||||
|
||||
CloudCacheService.Locator locator = CloudCacheService.Locator.newLocator(6789);
|
||||
|
||||
assertThat(locator).isNotNull();
|
||||
assertThat(locator.getHost()).isEqualTo(CloudCacheService.Locator.DEFAULT_LOCATOR_HOST);
|
||||
assertThat(locator.getPort()).isEqualTo(6789);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void newLocatorWithDefaultHostPort() {
|
||||
|
||||
CloudCacheService.Locator locator = CloudCacheService.Locator.newLocator();
|
||||
|
||||
assertThat(locator).isNotNull();
|
||||
assertThat(locator.getHost()).isEqualTo(CloudCacheService.Locator.DEFAULT_LOCATOR_HOST);
|
||||
assertThat(locator.getPort()).isEqualTo(CloudCacheService.Locator.DEFAULT_LOCATOR_PORT);
|
||||
}
|
||||
|
||||
private void testNewLocatorWithInvalidHost(String host) {
|
||||
|
||||
try {
|
||||
CloudCacheService.Locator.newLocator(host);
|
||||
}
|
||||
catch (IllegalArgumentException expected) {
|
||||
|
||||
assertThat(expected).hasMessage("Host [%s] is required", host);
|
||||
assertThat(expected).hasNoCause();
|
||||
|
||||
throw expected;
|
||||
}
|
||||
}
|
||||
|
||||
@Test(expected = IllegalArgumentException.class)
|
||||
public void newLocatorWithBlankHostnameThrowsIllegalArgumentException() {
|
||||
testNewLocatorWithInvalidHost(" ");
|
||||
}
|
||||
|
||||
@Test(expected = IllegalArgumentException.class)
|
||||
public void newLocatorWithEmptyHostnameThrowsIllegalArgumentException() {
|
||||
testNewLocatorWithInvalidHost("");
|
||||
}
|
||||
|
||||
@Test(expected = IllegalArgumentException.class)
|
||||
public void newLocatorWithNullHostnameThrowsIllegalArgumentException() {
|
||||
testNewLocatorWithInvalidHost(null);
|
||||
}
|
||||
|
||||
@Test(expected = IllegalArgumentException.class)
|
||||
public void newLocatorWithInvalidPortNumberThrowsIllegalArgumentException() {
|
||||
|
||||
try {
|
||||
CloudCacheService.Locator.newLocator(-2345);
|
||||
}
|
||||
catch (IllegalArgumentException expected) {
|
||||
|
||||
assertThat(expected).hasMessage("Port [-2345] must be greater than equal to 0");
|
||||
assertThat(expected).hasNoCause();
|
||||
|
||||
throw expected;
|
||||
}
|
||||
}
|
||||
|
||||
@Test
|
||||
public void locatorToStringPrintsHostPort() {
|
||||
assertThat(CloudCacheService.Locator.newLocator("skullbox", 1234).toString())
|
||||
.isEqualTo("skullbox[1234]");
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user