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

Introduction

In this page you can find the example usage for org.apache.hadoop.util StringUtils escapeString.

Prototype

public static String escapeString(String str, char escapeChar, char[] charsToEscape) 

Source Link

Usage

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

License:Apache License

/**
 *  Escapes all the delimiters for counters i.e {,[,(,),],}
 * @param string// w w w  .j a  v a2  s.  c  o 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);
}

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From source file:org.apache.accumulo.core.client.BatchWriterConfig.java

License:Apache License

private void addField(List<String> fields, String name, Object value) {
    String key = StringUtils.escapeString(name, '\\', new char[] { ',', '=' });
    String val = StringUtils.escapeString(String.valueOf(value), '\\', new char[] { ',', '=' });
    fields.add(key + '=' + val);
}

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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();
    }// ww  w  . jav  a2 s  .  c om

    // 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();
}

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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);
}

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From source file:org.apache.oozie.action.ssh.SshActionExecutor.java

License:Apache License

/**
 * Start the ssh action execution.//from ww  w. j  a v a2  s  .c  o m
 *
 * @param context action execution context.
 * @param action action object.
 */
@SuppressWarnings("unchecked")
@Override
public void start(final Context context, final WorkflowAction action) throws ActionExecutorException {
    XLog log = XLog.getLog(getClass());
    log.info("start() begins");
    String confStr = action.getConf();
    Element conf;
    try {
        conf = XmlUtils.parseXml(confStr);
    } catch (Exception ex) {
        throw convertException(ex);
    }
    Namespace nameSpace = conf.getNamespace();
    Element hostElement = conf.getChild("host", nameSpace);
    String hostString = hostElement.getValue().trim();
    hostString = prepareUserHost(hostString, context);
    final String host = hostString;
    final String dirLocation = execute(new Callable<String>() {
        public String call() throws Exception {
            return setupRemote(host, context, action);
        }

    });

    String runningPid = execute(new Callable<String>() {
        public String call() throws Exception {
            return checkIfRunning(host, context, action);
        }
    });
    String pid = "";

    if (runningPid == null) {
        final Element commandElement = conf.getChild("command", nameSpace);
        final boolean ignoreOutput = conf.getChild("capture-output", nameSpace) == null;

        boolean preserve = false;
        if (commandElement != null) {
            String[] args = null;
            // Will either have <args>, <arg>, or neither (but not both)
            List<Element> argsList = conf.getChildren("args", nameSpace);
            // Arguments in an <args> are "flattened" (spaces are delimiters)
            if (argsList != null && argsList.size() > 0) {
                StringBuilder argsString = new StringBuilder("");
                for (Element argsElement : argsList) {
                    argsString = argsString.append(argsElement.getValue()).append(" ");
                }
                args = new String[] { argsString.toString() };
            } else {
                // Arguments in an <arg> are preserved, even with spaces
                argsList = conf.getChildren("arg", nameSpace);
                if (argsList != null && argsList.size() > 0) {
                    preserve = true;
                    args = new String[argsList.size()];
                    for (int i = 0; i < argsList.size(); i++) {
                        Element argsElement = argsList.get(i);
                        args[i] = argsElement.getValue();
                        // Even though we're keeping the args as an array, if they contain a space we still have to either quote
                        // them or escape their space (because the scripts will split them up otherwise)
                        if (args[i].contains(" ") && !(args[i].startsWith("\"") && args[i].endsWith("\"")
                                || args[i].startsWith("'") && args[i].endsWith("'"))) {
                            args[i] = StringUtils.escapeString(args[i], '\\', ' ');
                        }
                    }
                }
            }
            final String[] argsF = args;
            final String recoveryId = context.getRecoveryId();
            final boolean preserveF = preserve;
            pid = execute(new Callable<String>() {

                @Override
                public String call() throws Exception {
                    return doExecute(host, dirLocation, commandElement.getValue(), argsF, ignoreOutput, action,
                            recoveryId, preserveF);
                }

            });
        }
        context.setStartData(pid, host, host);
    } else {
        pid = runningPid;
        context.setStartData(pid, host, host);
        check(context, action);
    }
    log.info("start() ends");
}

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