Example usage for org.apache.hadoop.util StringUtils ESCAPE

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char ESCAPE_CHAR

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From source file:com.chinamobile.bcbsp.bspcontroller.Counters.java

License:Apache License

/**Extracts a block (data enclosed within delimeters) ignoring escape
 * sequences. Throws ParseException if an incomplete block is found else
 * returns null./*from w w w.  ja v a 2s  .  c o m*/
 * @param str
 *        split address to find
 * @param open
 *        if the split is open
 * @param close
 *        if the split is close
 * @param index
 *        block write index.
 * @return blocks has got
 */
private static String getBlock(String str, char open, char close, IntWritable index) throws ParseException {
    StringBuilder split = new StringBuilder();
    int next = StringUtils.findNext(str, open, StringUtils.ESCAPE_CHAR, index.get(), split);
    split.setLength(0); // clear the buffer
    if (next >= 0) {
        ++next; // move over '('
        next = StringUtils.findNext(str, close, StringUtils.ESCAPE_CHAR, next, split);
        if (next >= 0) {
            ++next; // move over ')'
            index.set(next);
            return split.toString(); // found a block
        } else {
            throw new ParseException("Unexpected end of block", next);
        }
    }
    return null; // found nothing
}

From source file:com.chinamobile.bcbsp.bspcontroller.Counters.java

License:Apache License

/**
 *  Escapes all the delimiters for counters i.e {,[,(,),],}
 * @param string/*from   w  w  w .j av a 2  s  .co  m*/
 *        counter record to escape.
 * @return
 *        counter record has been escaped
 */
private static String escape(String string) {
    return StringUtils.escapeString(string, StringUtils.ESCAPE_CHAR, charsToEscape);
}

From source file:com.chinamobile.bcbsp.bspcontroller.Counters.java

License:Apache License

/**
 * Unescapes all the delimiters for counters i.e {,[,(,),],}
 * @param string//from  ww  w .  jav a2 s .  c  o  m
 *        counter record to unescape
 * @return unescaped counter record.
 */
private static String unescape(String string) {
    return StringUtils.unEscapeString(string, StringUtils.ESCAPE_CHAR, charsToEscape);
}

From source file:org.apache.ambari.log4j.hadoop.mapreduce.jobhistory.MapReduceJobHistoryUpdater.java

License:Apache License

public static WorkflowContext buildWorkflowContext(JobSubmittedEvent historyEvent) {
    String workflowId = historyEvent.getWorkflowId().replace("\\", "");
    if (workflowId.isEmpty())
        return generateWorkflowContext(historyEvent);
    String workflowName = historyEvent.getWorkflowName().replace("\\", "");
    String workflowNodeName = historyEvent.getWorkflowNodeName().replace("\\", "");
    String workflowAdjacencies = StringUtils.unEscapeString(historyEvent.getWorkflowAdjacencies(),
            StringUtils.ESCAPE_CHAR, new char[] { '"', '=', '.' });
    WorkflowContext context = new WorkflowContext();
    context.setWorkflowId(workflowId);//ww  w. j  av  a2 s.  c  o m
    context.setWorkflowName(workflowName);
    context.setWorkflowEntityName(workflowNodeName);
    WorkflowDag dag = new WorkflowDag();
    Matcher matcher = adjPattern.matcher(workflowAdjacencies);

    while (matcher.find()) {
        WorkflowDagEntry dagEntry = new WorkflowDagEntry();
        dagEntry.setSource(matcher.group(1).replace("\\", ""));
        String[] values = StringUtils.getStrings(matcher.group(2).replace("\\", ""));
        if (values != null) {
            for (String target : values) {
                dagEntry.addTarget(target);
            }
        }
        dag.addEntry(dagEntry);
    }
    if (dag.getEntries().isEmpty()) {
        WorkflowDagEntry wfDagEntry = new WorkflowDagEntry();
        wfDagEntry.setSource(workflowNodeName);
        dag.addEntry(wfDagEntry);
    }
    context.setWorkflowDag(dag);
    return context;
}

From source file:org.apache.ambari.TestJobHistoryParsing.java

License:Apache License

private static String log(String recordType, String[] keys, String[] values) {
    int length = recordType.length() + keys.length * 4 + 2;
    for (int i = 0; i < keys.length; i++) {
        values[i] = StringUtils.escapeString(values[i], StringUtils.ESCAPE_CHAR, charsToEscape);
        length += values[i].length() + keys[i].toString().length();
    }/*  w  w  w.  j  a va2 s.c o  m*/

    // We have the length of the buffer, now construct it.
    StringBuilder builder = new StringBuilder(length);
    builder.append(recordType);
    builder.append(DELIMITER);
    for (int i = 0; i < keys.length; i++) {
        builder.append(keys[i]);
        builder.append("=\"");
        builder.append(values[i]);
        builder.append("\"");
        builder.append(DELIMITER);
    }
    builder.append(LINE_DELIMITER_CHAR);

    return builder.toString();
}

From source file:org.apache.hama.bsp.Counters.java

License:Apache License

private static String getBlock(String str, char open, char close, IntWritable index) throws ParseException {
    StringBuilder split = new StringBuilder();
    int next = StringUtils.findNext(str, open, StringUtils.ESCAPE_CHAR, index.get(), split);
    split.setLength(0); // clear the buffer
    if (next >= 0) {
        ++next; // move over '('

        next = StringUtils.findNext(str, close, StringUtils.ESCAPE_CHAR, next, split);
        if (next >= 0) {
            ++next; // move over ')'
            index.set(next);/*from   w ww.jav a  2 s.co  m*/
            return split.toString(); // found a block
        } else {
            throw new ParseException("Unexpected end of block", next);
        }
    }
    return null; // found nothing
}

From source file:org.apache.hama.bsp.Counters.java

License:Apache License

private static String escape(String string) {
    return StringUtils.escapeString(string, StringUtils.ESCAPE_CHAR, charsToEscape);
}

From source file:org.apache.hama.bsp.Counters.java

License:Apache License

private static String unescape(String string) {
    return StringUtils.unEscapeString(string, StringUtils.ESCAPE_CHAR, charsToEscape);
}

From source file:org.apache.hcatalog.templeton.test.tool.TempletonUtilsTest.java

License:Apache License

@Test
public void testEncodeArray() {
    assertEquals(null, TempletonUtils.encodeArray((String[]) null));
    String[] tmp = new String[0];
    assertTrue(TempletonUtils.encodeArray(new String[0]).length() == 0);
    tmp = new String[3];
    tmp[0] = "fred";
    tmp[1] = null;//  w w w  .  j  a va 2  s .  c  o  m
    tmp[2] = "peter,lisa,, barney";
    assertEquals("fred,,peter" + StringUtils.ESCAPE_CHAR + ",lisa" + StringUtils.ESCAPE_CHAR + ","
            + StringUtils.ESCAPE_CHAR + ", barney", TempletonUtils.encodeArray(tmp));
}

From source file:org.apache.hcatalog.templeton.tool.TestTempletonUtils.java

License:Apache License

@Test
public void testEncodeArray() {
    Assert.assertEquals(null, TempletonUtils.encodeArray((String[]) null));
    String[] tmp = new String[0];
    Assert.assertTrue(TempletonUtils.encodeArray(new String[0]).length() == 0);
    tmp = new String[3];
    tmp[0] = "fred";
    tmp[1] = null;/*from   ww  w .  j  av  a 2 s.  c  om*/
    tmp[2] = "peter,lisa,, barney";
    Assert.assertEquals("fred,,peter" + StringUtils.ESCAPE_CHAR + ",lisa" + StringUtils.ESCAPE_CHAR + ","
            + StringUtils.ESCAPE_CHAR + ", barney", TempletonUtils.encodeArray(tmp));
}

Example usage for org.apache.hadoop.util StringUtils ESCAPE_CHAR

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Prototype

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