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support directories in sstable2json (#532) #534

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support directories in sstable2json (#532) #534

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55 changes: 43 additions & 12 deletions src/java/org/apache/cassandra/tools/SSTableExport.java
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Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,11 @@
*/
package org.apache.cassandra.tools;

import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.*;

Expand Down Expand Up @@ -373,11 +376,8 @@ public static void export(Descriptor desc, String[] excludes) throws IOException
* @param args command lines arguments
* @throws ConfigurationException on configuration failure (wrong params given)
*/
public static void main(String[] args) throws ConfigurationException
public static void main(String[] args) throws ConfigurationException, IOException
{
System.err.println("WARNING: please note that sstable2json is now deprecated and will be removed in Cassandra 3.0. "
+ "Please see https://issues.apache.org/jira/browse/CASSANDRA-9618 for details.");

String usage = String.format("Usage: %s <sstable> [-k key [-k key [...]] -x key [-x key [...]]]%n", SSTableExport.class.getName());

CommandLineParser parser = new PosixParser();
Expand All @@ -395,7 +395,7 @@ public static void main(String[] args) throws ConfigurationException

if (cmd.getArgs().length != 1)
{
System.err.println("You must supply exactly one sstable");
System.err.println("You must supply exactly one sstable or directory");
System.err.println(usage);
System.exit(1);
}
Expand All @@ -404,16 +404,49 @@ public static void main(String[] args) throws ConfigurationException

String[] keys = cmd.getOptionValues(KEY_OPTION);
String[] excludes = cmd.getOptionValues(EXCLUDEKEY_OPTION);
String ssTableFileName = new File(cmd.getArgs()[0]).getAbsolutePath();
File fileOrDirectory = new File(cmd.getArgs()[0]);

Schema.instance.loadFromDisk(false);

try(PrintStream printStream = new PrintStream(new BufferedOutputStream(System.out))) {
if (fileOrDirectory.isDirectory())
{
File[] files = Objects.requireNonNull(fileOrDirectory.listFiles((dir, name) ->
name.endsWith("Data.db")
), "An error occurred while listing files in the provided directory");
printStream.println("{");
int i = 0;
for (File file : files)
{
if (i != 0)
{
printStream.println(",");
}
i++;
String ssTableFileName = file.getAbsolutePath();
printStream.printf("\"%s\":", file.getName());
handleSingleSsTableFile(ssTableFileName, keys, excludes, printStream);
}
printStream.println("}");
}
else
{
handleSingleSsTableFile(fileOrDirectory.getAbsolutePath(), keys, excludes, printStream);
}
}

System.exit(0);
}

private static void handleSingleSsTableFile(String ssTableFileName, String[] keys, String[] excludes, PrintStream printStream)
{
Descriptor descriptor = Descriptor.fromFilename(ssTableFileName);

// Start by validating keyspace name
if (Schema.instance.getKSMetaData(descriptor.ksname) == null)
{
System.err.println(String.format("Filename %s references to nonexistent keyspace: %s!",
ssTableFileName, descriptor.ksname));
ssTableFileName, descriptor.ksname));
System.exit(1);
}
Keyspace.setInitialized();
Expand Down Expand Up @@ -444,23 +477,21 @@ public static void main(String[] args) throws ConfigurationException
{
if (cmd.hasOption(ENUMERATEKEYS_OPTION))
{
enumeratekeys(descriptor, System.out, cfStore.metadata);
enumeratekeys(descriptor, printStream, cfStore.metadata);
}
else
{
if ((keys != null) && (keys.length > 0))
export(descriptor, System.out, Arrays.asList(keys), excludes, cfStore.metadata);
export(descriptor, printStream, Arrays.asList(keys), excludes, cfStore.metadata);
else
export(descriptor, excludes);
export(descriptor, printStream, excludes);
}
}
catch (IOException e)
{
// throwing exception outside main with broken pipe causes windows cmd to hang
e.printStackTrace(System.err);
}

System.exit(0);
}

private static void writeJSON(PrintStream out, Object value)
Expand Down