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Use java to download external dependecies
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build-tools/src/main/java/org/apache/zeppelin/build/tools/DownloadRequest.java
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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. | ||
*/ | ||
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package org.apache.zeppelin.build.tools; | ||
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import java.net.MalformedURLException; | ||
import java.net.URL; | ||
import java.util.Optional; | ||
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public class DownloadRequest { | ||
private final URL url; | ||
private final Optional<URL> alternativeUrl; | ||
private final int retries; | ||
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public static final int DEFAULT_RETRIES = 3; | ||
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public DownloadRequest(String url, int retries) throws MalformedURLException { | ||
this(url, null, retries); | ||
} | ||
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public DownloadRequest(String url, String alternativeUrl) throws MalformedURLException { | ||
this(url, alternativeUrl, DEFAULT_RETRIES); | ||
} | ||
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public DownloadRequest(String url, String alternativeUrl, int retries) | ||
throws MalformedURLException { | ||
if (alternativeUrl != null) { | ||
this.url = new URL(url); | ||
this.alternativeUrl = Optional.of(new URL(alternativeUrl)); | ||
this.retries = retries; | ||
} else { | ||
this.url = new URL(url); | ||
this.alternativeUrl = Optional.empty(); | ||
this.retries = retries; | ||
} | ||
} | ||
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public DownloadRequest(URL url, int retries) { | ||
this(url, null, retries); | ||
} | ||
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public DownloadRequest(URL url, URL alternativeUrl) { | ||
this(url, alternativeUrl, DEFAULT_RETRIES); | ||
} | ||
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public DownloadRequest(URL url, URL alternativeUrl, int retries) { | ||
this.url = url; | ||
this.alternativeUrl = Optional.of(alternativeUrl); | ||
this.retries = retries; | ||
} | ||
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public URL getUrl() { | ||
return url; | ||
} | ||
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public Optional<URL> getAlternativeUrl() { | ||
return alternativeUrl; | ||
} | ||
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public int getRetries() { | ||
return retries; | ||
} | ||
} |
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