feat(service): implement primary features and challenges

------------
# Locales
- **[zh-cn]** 实现主要功能

Author: ococl

.editorconfig

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+[*]
+charset = utf-8
+end_of_line = crlf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+max_line_length = 180
+tab_width = 4
+
+[{*.sh, mvnw, gradlew}]
+end_of_line = lf
+
+[{*.yml, *.yaml}]
+indent_size = 2
+
+[*.xml]
+indent_size = 2
+
+[*.json]
+indent_size = 2
+
+[*.mustache]
+insert_final_newline = false

.gitattributes

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+*.sh        text eol=lf
+mvnw        text eol=lf

.travis.yml

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+os: linux
+dist: trusty
+language: java
+jdk:
+- openjdk8
+if: |
+  (branch IN (master, dev) AND commit_message !~ /^(bumped version to|release:) (\d+(\.\d+){2})(-.+)?$/) \
+  OR tag =~ /^(\d+(\.\d+){2})([-+][\w\-\.+]+)?$/
+git:
+  depth: false
+env:
+  global:
+    secure: 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
+before_cache:
+- rm -f $HOME/.gradle/caches/modules-2/modules-2.lock
+cache:
+  directories:
+  - ".autoconf"
+  - "$HOME/.m2"
+  - "$HOME/.gradle/caches/modules-2/"
+  - "$HOME/.gradle/wrapper/dists/"
+before_install:
+- openssl aes-256-cbc -K $encrypted_2afbb999f001_key -iv $encrypted_2afbb999f001_iv
+  -in gradle.properties.enc -out gradle.properties -d
+- openssl aes-256-cbc -K $encrypted_70811ee8b6a1_key -iv $encrypted_70811ee8b6a1_iv
+  -in .travis/secret.gpg.enc -out .travis/secret.gpg -d
+- git config --global user.name "Travis CI"
+- git config --global user.email "travis.ci@yi.team"
+- chmod +x ./gradlew .travis/*.sh
+- ls -lh
+- git log --graph --full-history --all --color --date=short --pretty=format:"%Cred%x09%h
+  %Creset%ad%Cgreen%d %Creset %s %C(bold)(%an)%Creset" || true
+install: "/bin/true"
+script:
+- "./gradlew clean"
+deploy:
+- provider: script
+  skip_cleanup: true
+  cleanup: false
+  script: ".travis/deploy-snapshot.sh"
+  on:
+    branch: master
+- provider: script
+  skip_cleanup: true
+  cleanup: false
+  script: ".travis/deploy-release.sh"
+  on:
+    tags: true

.travis/deploy-release.sh

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+#!/bin/bash
+
+set -e
+
+cd ${TRAVIS_BUILD_DIR}
+
+# Prepare the local keyring (requires travis to have decrypted the file
+# beforehand)
+gpg --fast-import .travis/secret.gpg
+
+echo "TRAVIS_BRANCH: ${TRAVIS_BRANCH}"
+echo "on a tag -> set project version to ${TRAVIS_TAG}"
+
+newVersion=${TRAVIS_TAG}
+gitCommit="release: ${newVersion}"
+
+# Print newVersion
+echo "newVersion: ${newVersion}"
+
+if [[ -z "${newVersion}" ]]; then
+  echo "missing newVersion value" >&2
+  exit 1
+fi
+
+# Run the gradle publish steps
+./gradlew setVersion -P newVersion=${newVersion} 1>/dev/null 2>/dev/null
+./gradlew publishMavenJavaPublicationToMavenRepository
+./gradlew publishPlugins
+
+# Generate and push CHANGELOG.md - fully
+git reset --hard
+git remote set-url origin https://${GITHUB_TOKEN}@github.com/${TRAVIS_REPO_SLUG}.git
+git remote set-branches --add origin 'master'
+git fetch
+git checkout master
+git show-ref
+chmod +x ./gradlew .travis/*.sh
+
+./gradlew setVersion -P newVersion=${newVersion} 1>/dev/null 2>/dev/null
+./gradlew changelog --toRef=master
+
+git add ./CHANGELOG* || true
+git add ./build.gradle || true
+git commit --amend -m "${gitCommit}" && git push -f || true

.travis/deploy-snapshot.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+set -e
+
+cd ${TRAVIS_BUILD_DIR}
+
+# Prepare the local keyring (requires travis to have decrypted the file
+# beforehand)
+gpg --fast-import .travis/secret.gpg
+
+echo "TRAVIS_BRANCH: ${TRAVIS_BRANCH}"
+echo "not on a tag -> derive version and keep snapshot"
+
+newVersion=`./gradlew derive --preRelease='SNAPSHOT' -i | grep 'NEXT_VERSION:==' | sed 's/^.*NEXT_VERSION:==//g'`
+gitCommit="bumped version to ${newVersion}"
+
+# Print newVersion
+echo "newVersion: ${newVersion}"
+
+if [[ -z "${newVersion}" ]]; then
+  echo "missing newVersion value" >&2
+  exit 1
+fi
+
+git remote set-url origin https://${GITHUB_TOKEN}@github.com/${TRAVIS_REPO_SLUG}.git
+git fetch
+git checkout master
+git show-ref
+
+# Run the gradle publish steps
+./gradlew setVersion -P newVersion=${newVersion} 1>/dev/null 2>/dev/null
+./gradlew publishMavenJavaPublicationToMavenRepository
+./gradlew publishPlugins
+
+# Generate and push CHANGELOG.md
+./gradlew changelog --toRef=master
+
+git add ./CHANGELOG* || true
+git add ./build.gradle || true
+git commit -m "${gitCommit}" && git push origin || true

.travis/secret.gpg.enc

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 ymind
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.