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Print recommend latest version #1509

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hengyunabc 2020-09-18 17:51:06 +08:00
parent bcbd5924e6
commit fe84834880
1 changed files with 46 additions and 1 deletions
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47
core/src/main/java/com/taobao/arthas/core/util/ArthasBanner.java
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@ -9,7 +9,12 @@ import com.taobao.text.Decoration;
import com.taobao.text.ui.TableElement;
import com.taobao.text.util.RenderUtil;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.Collections;
import java.util.Map;
import java.util.Map.Entry;
@ -25,6 +30,9 @@ public class ArthasBanner {
private static final String VERSION_LOCATION = "/com/taobao/arthas/core/res/version";
private static final String WIKI = "https://arthas.aliyun.com/doc";
private static final String TUTORIALS = "https://arthas.aliyun.com/doc/arthas-tutorials.html";
private static final String ARTHAS_LATEST_VERSIONS_URL = "https://arthas.aliyun.com/api/latest_version";
private static final int CONNECTION_TIMEOUT = 1000;
private static String LOGO = "Welcome to Arthas";
private static String VERSION = "unknown";
@ -101,7 +109,7 @@ public class ArthasBanner {
}
public static String welcome(Map<String, String> infos) {
logger.info("arthas version: " + version());
logger.info("Current arthas version: {}, recommend latest version: {}", version(), latestVersion());
TableElement table = new TableElement().rightCellPadding(1)
.row("wiki", wiki())
.row("tutorials", tutorials())
@ -114,4 +122,41 @@ public class ArthasBanner {
return logo() + "\n" + RenderUtil.render(table);
}
static String latestVersion() {
try {
URLConnection urlConnection = openURLConnection(ARTHAS_LATEST_VERSIONS_URL);
InputStream inputStream = urlConnection.getInputStream();
return com.taobao.arthas.common.IOUtils.toString(inputStream).trim();
} catch (Throwable e) {
// ignore
}
return "";
}
/**
* support redirect
*
* @param url
* @return
* @throws MalformedURLException
* @throws IOException
*/
private static URLConnection openURLConnection(String url) throws MalformedURLException, IOException {
URLConnection connection = new URL(url).openConnection();
if (connection instanceof HttpURLConnection) {
connection.setConnectTimeout(CONNECTION_TIMEOUT);
// normally, 3xx is redirect
int status = ((HttpURLConnection) connection).getResponseCode();
if (status != HttpURLConnection.HTTP_OK) {
if (status == HttpURLConnection.HTTP_MOVED_TEMP || status == HttpURLConnection.HTTP_MOVED_PERM
|| status == HttpURLConnection.HTTP_SEE_OTHER) {
String newUrl = connection.getHeaderField("Location");
logger.debug("Try to open url: {}, redirect to: {}", url, newUrl);
return openURLConnection(newUrl);
}
}
}
return connection;
}
}