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retry when socket times out

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git-svn-id: https://public-transport-enabler.googlecode.com/svn/trunk@79 0924bc21-9374-b0fa-ee44-9ff1593b38f0
This commit is contained in:
andreas.schildbach 2010-08-13 09:18:40 +00:00
parent edd72a64c4
commit a3be919104
1 changed files with 40 additions and 24 deletions
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16
src/de/schildbach/pte/ParserUtils.java
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@ -23,6 +23,7 @@ import java.io.OutputStreamWriter;
import java.io.Reader; import java.io.Reader;
import java.io.UnsupportedEncodingException; import java.io.UnsupportedEncodingException;
import java.io.Writer; import java.io.Writer;
import java.net.SocketTimeoutException;
import java.net.URL; import java.net.URL;
import java.net.URLConnection; import java.net.URLConnection;
import java.net.URLEncoder; import java.net.URLEncoder;
@ -50,6 +51,12 @@ public final class ParserUtils
} }
public static CharSequence scrape(final String url, final String request) throws IOException public static CharSequence scrape(final String url, final String request) throws IOException
{
int tries = 3;
while (true)
{
try
{ {
final StringBuilder buffer = new StringBuilder(SCRAPE_INITIAL_CAPACITY); final StringBuilder buffer = new StringBuilder(SCRAPE_INITIAL_CAPACITY);
final URLConnection connection = new URL(url).openConnection(); final URLConnection connection = new URL(url).openConnection();
@ -80,6 +87,15 @@ public final class ParserUtils
pageReader.close(); pageReader.close();
return buffer; return buffer;
} }
catch (final SocketTimeoutException x)
{
if (tries-- > 0)
System.out.println("socket timed out, retrying...");
else
throw x;
}
}
}
private static final Pattern P_ENTITY = Pattern.compile("&(?:#(x[\\da-f]+|\\d+)|(amp|quot|apos));"); private static final Pattern P_ENTITY = Pattern.compile("&(?:#(x[\\da-f]+|\\d+)|(amp|quot|apos));");