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Adding new type of input for Monitors - HttpInput (opendistro-for-ela…
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.../src/main/kotlin/com/amazon/opendistroforelasticsearch/alerting/client/HttpInputClient.kt
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"). | ||
| * You may not use this file except in compliance with the License. | ||
| * A copy of the License is located at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * or in the "license" file accompanying this file. This file 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. | ||
| */ | ||
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|
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| package com.amazon.opendistroforelasticsearch.alerting.client | ||
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| import com.amazon.opendistroforelasticsearch.alerting.core.model.HttpInput | ||
| import org.apache.http.client.config.RequestConfig | ||
| import org.apache.http.impl.nio.client.CloseableHttpAsyncClient | ||
| import org.apache.http.impl.nio.client.HttpAsyncClientBuilder | ||
| import org.elasticsearch.common.unit.ByteSizeUnit | ||
| import org.elasticsearch.common.unit.TimeValue | ||
| import java.security.AccessController | ||
| import java.security.PrivilegedAction | ||
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| /** | ||
| * This class takes [HttpInput] and performs GET requests to given URIs. | ||
| */ | ||
| class HttpInputClient { | ||
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| // TODO: If possible, these settings should be implemented as changeable via the "_cluster/settings" API. | ||
| private val CONNECTION_TIMEOUT_MILLISECONDS = TimeValue.timeValueSeconds(5).millis().toInt() | ||
| private val REQUEST_TIMEOUT_MILLISECONDS = TimeValue.timeValueSeconds(10).millis().toInt() | ||
| private val SOCKET_TIMEOUT_MILLISECONDS = TimeValue.timeValueSeconds(10).millis().toInt() | ||
| val MAX_CONTENT_LENGTH = ByteSizeUnit.MB.toBytes(100) | ||
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| val client = createHttpClient() | ||
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| /** | ||
| * Create [CloseableHttpAsyncClient] as a [PrivilegedAction] in order to avoid [java.net.NetPermission] error. | ||
| */ | ||
| private fun createHttpClient(): CloseableHttpAsyncClient { | ||
| val config = RequestConfig.custom() | ||
| .setConnectTimeout(CONNECTION_TIMEOUT_MILLISECONDS) | ||
| .setConnectionRequestTimeout(REQUEST_TIMEOUT_MILLISECONDS) | ||
| .setSocketTimeout(SOCKET_TIMEOUT_MILLISECONDS) | ||
| .build() | ||
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| return AccessController.doPrivileged(PrivilegedAction<CloseableHttpAsyncClient>({ | ||
| HttpAsyncClientBuilder.create() | ||
| .setDefaultRequestConfig(config) | ||
| .useSystemProperties() | ||
| .build() | ||
| } as () -> CloseableHttpAsyncClient)) | ||
| } | ||
| } |
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