HADOOP-2351 If select command returns no result, it doesn't need to show

the header information


git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@603940 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Stack 2007-12-13 15:43:04 +00:00
parent f8a906f49f
commit 91de46cac1
4 changed files with 44 additions and 7 deletions

View File

@ -117,6 +117,10 @@ Trunk (unreleased changes)
(Edward Yoon via Stack) (Edward Yoon via Stack)
HADOOP-2407 Keeping MapFile.Reader open is expensive: Part 2 HADOOP-2407 Keeping MapFile.Reader open is expensive: Part 2
HADOOP-2047 Add an '--master=X' and '--html' command-line parameters to shell HADOOP-2047 Add an '--master=X' and '--html' command-line parameters to shell
(Edward Yoon via Stack)
HADOOP-2351 If select command returns no result, it doesn't need to show the
header information (Edward Yoon via Stack)
Release 0.15.1 Release 0.15.1
Branch 0.15 Branch 0.15

View File

@ -47,6 +47,7 @@ public class Shell {
public static final boolean DEFAULT_BELL_ENABLED = true; public static final boolean DEFAULT_BELL_ENABLED = true;
public static String MASTER_ADDRESS = null; public static String MASTER_ADDRESS = null;
public static String HTML_OPTION = null; public static String HTML_OPTION = null;
public static int RELAUNCH_FLAG = 7;
/** Return the boolean value indicating whether end of command or not */ /** Return the boolean value indicating whether end of command or not */
static boolean isEndOfCommand(String line) { static boolean isEndOfCommand(String line) {
@ -78,6 +79,14 @@ public class Shell {
*/ */
public static void main(String args[]) throws IOException { public static void main(String args[]) throws IOException {
argumentParsing(args); argumentParsing(args);
if (args.length != 0) {
if (args[0].equals("--help") || args[0].equals("-h")) {
System.out
.println("Usage: ./bin/hbase shell [--master:master_address:port] [--html]\n");
System.exit(1);
}
}
HBaseConfiguration conf = new HBaseConfiguration(); HBaseConfiguration conf = new HBaseConfiguration();
ConsoleReader reader = new ConsoleReader(); ConsoleReader reader = new ConsoleReader();
System.setSecurityManager(new ShellSecurityManager()); System.setSecurityManager(new ShellSecurityManager());
@ -90,11 +99,10 @@ public class Shell {
} }
if (HTML_OPTION != null) { if (HTML_OPTION != null) {
tableFormater = new HtmlTableFormatter(out); tableFormater = new HtmlTableFormatter(out);
System.out.println("--html");
} }
HelpCommand help = new HelpCommand(out, tableFormater); HelpCommand help = new HelpCommand(out, tableFormater);
if (args.length == 0 || !args[0].equals("7")) { if (args.length == 0 || !args[0].equals(String.valueOf(Shell.RELAUNCH_FLAG))) {
help.printVersion(); help.printVersion();
} }
StringBuilder queryStr = new StringBuilder(); StringBuilder queryStr = new StringBuilder();

View File

@ -37,6 +37,7 @@ import org.apache.hadoop.hbase.HScannerInterface;
import org.apache.hadoop.hbase.HStoreKey; import org.apache.hadoop.hbase.HStoreKey;
import org.apache.hadoop.hbase.HTable; import org.apache.hadoop.hbase.HTable;
import org.apache.hadoop.hbase.HTableDescriptor; import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.Shell;
import org.apache.hadoop.hbase.shell.generated.Parser; import org.apache.hadoop.hbase.shell.generated.Parser;
import org.apache.hadoop.hbase.util.Writables; import org.apache.hadoop.hbase.util.Writables;
import org.apache.hadoop.io.Text; import org.apache.hadoop.io.Text;
@ -113,8 +114,10 @@ public class SelectCommand extends BasicCommand {
byte[][] result = null; byte[][] result = null;
ParsedColumns parsedColumns = getColumns(admin, false); ParsedColumns parsedColumns = getColumns(admin, false);
boolean multiple = parsedColumns.isMultiple() || this.version > 1; boolean multiple = parsedColumns.isMultiple() || this.version > 1;
formatter.header(multiple ? HEADER_COLUMN_CELL : null);
for (Text column : parsedColumns.getColumns()) { for (Text column : parsedColumns.getColumns()) {
if(count == 0) {
formatter.header(multiple ? HEADER_COLUMN_CELL : null);
}
if (this.timestamp != 0) { if (this.timestamp != 0) {
result = table.get(this.rowKey, column, this.timestamp, this.version); result = table.get(this.rowKey, column, this.timestamp, this.version);
} else { } else {
@ -131,8 +134,10 @@ public class SelectCommand extends BasicCommand {
} }
} }
} else { } else {
formatter.header(isMultiple() ? HEADER_COLUMN_CELL : null);
for (Map.Entry<Text, byte[]> e : table.getRow(this.rowKey).entrySet()) { for (Map.Entry<Text, byte[]> e : table.getRow(this.rowKey).entrySet()) {
if(count == 0) {
formatter.header(isMultiple() ? HEADER_COLUMN_CELL : null);
}
Text key = e.getKey(); Text key = e.getKey();
String keyStr = key.toString(); String keyStr = key.toString();
if (!this.columns.contains(STAR) && !this.columns.contains(keyStr)) { if (!this.columns.contains(STAR) && !this.columns.contains(keyStr)) {
@ -147,6 +152,10 @@ public class SelectCommand extends BasicCommand {
count++; count++;
} }
} }
if(count == 0 && Shell.HTML_OPTION != null) {
formatter.header(isMultiple() ? HEADER_COLUMN_CELL : null);
}
formatter.footer(); formatter.footer();
} catch (IOException e) { } catch (IOException e) {
e.printStackTrace(); e.printStackTrace();
@ -209,8 +218,10 @@ public class SelectCommand extends BasicCommand {
HStoreKey key = new HStoreKey(); HStoreKey key = new HStoreKey();
TreeMap<Text, byte[]> results = new TreeMap<Text, byte[]>(); TreeMap<Text, byte[]> results = new TreeMap<Text, byte[]>();
// If only one column in query, then don't print out the column. // If only one column in query, then don't print out the column.
formatter.header((parsedColumns.isMultiple()) ? HEADER : HEADER_ROW_CELL);
while (scan.next(key, results) && checkLimit(count)) { while (scan.next(key, results) && checkLimit(count)) {
if(count == 0) {
formatter.header((parsedColumns.isMultiple()) ? HEADER : HEADER_ROW_CELL);
}
Text r = key.getRow(); Text r = key.getRow();
for (Text columnKey : results.keySet()) { for (Text columnKey : results.keySet()) {
String cellData = toString(columnKey, results.get(columnKey)); String cellData = toString(columnKey, results.get(columnKey));
@ -229,6 +240,11 @@ public class SelectCommand extends BasicCommand {
// Clear results else subsequent results polluted w/ previous finds. // Clear results else subsequent results polluted w/ previous finds.
results.clear(); results.clear();
} }
if(count == 0 && Shell.HTML_OPTION != null) {
formatter.header((parsedColumns.isMultiple()) ? HEADER : HEADER_ROW_CELL);
}
formatter.footer(); formatter.footer();
scan.close(); scan.close();
} catch (IOException e) { } catch (IOException e) {

View File

@ -21,6 +21,8 @@ package org.apache.hadoop.hbase.shell;
import java.io.IOException; import java.io.IOException;
import java.security.Permission; import java.security.Permission;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.hbase.Shell; import org.apache.hadoop.hbase.Shell;
@ -47,9 +49,16 @@ public class ShellSecurityManager extends SecurityManager {
// I didn't figure out How can catch the ExitException in shell main. // I didn't figure out How can catch the ExitException in shell main.
// So, I just Re-launching the shell. // So, I just Re-launching the shell.
Shell shell = new Shell(); Shell shell = new Shell();
String[] args = new String[] { String.valueOf(7) };
List<String> argList = new ArrayList<String>();
argList.add(String.valueOf(Shell.RELAUNCH_FLAG));
if(Shell.HTML_OPTION != null)
argList.add(Shell.HTML_OPTION);
if(Shell.MASTER_ADDRESS != null)
argList.add(Shell.MASTER_ADDRESS);
try { try {
shell.main(args); shell.main(argList.toArray(new String[] {}));
} catch (IOException e) { } catch (IOException e) {
e.printStackTrace(); e.printStackTrace();
} }