org.znerd.xmlenc.XMLOutputter Java Exaples

Source File: FileChecksumServlets.java From hadoop-gpu with Apache License 2.0

6 votes

/** {@inheritDoc} */
public void doGet(HttpServletRequest request, HttpServletResponse response
    ) throws ServletException, IOException {
  final UnixUserGroupInformation ugi = getUGI(request);
  final PrintWriter out = response.getWriter();
  final String filename = getFilename(request, response);
  final XMLOutputter xml = new XMLOutputter(out, "UTF-8");
  xml.declaration();

  final Configuration conf = new Configuration(DataNode.getDataNode().getConf());
  final int socketTimeout = conf.getInt("dfs.socket.timeout", HdfsConstants.READ_TIMEOUT);
  final SocketFactory socketFactory = NetUtils.getSocketFactory(conf, ClientProtocol.class);
  UnixUserGroupInformation.saveToConf(conf,
      UnixUserGroupInformation.UGI_PROPERTY_NAME, ugi);
  final ClientProtocol nnproxy = DFSClient.createNamenode(conf);

  try {
    final MD5MD5CRC32FileChecksum checksum = DFSClient.getFileChecksum(
        filename, nnproxy, socketFactory, socketTimeout);
    MD5MD5CRC32FileChecksum.write(xml, checksum);
  } catch(IOException ioe) {
    new RemoteException(ioe.getClass().getName(), ioe.getMessage()
        ).writeXml(filename, xml);
  }
  xml.endDocument();
}

Source File: DfsServlet.java From hadoop with Apache License 2.0

6 votes

/** Write the object to XML format */
protected void writeXml(Exception except, String path, XMLOutputter doc)
    throws IOException {
  doc.startTag(RemoteException.class.getSimpleName());
  doc.attribute("path", path);
  if (except instanceof RemoteException) {
    doc.attribute("class", ((RemoteException) except).getClassName());
  } else {
    doc.attribute("class", except.getClass().getName());
  }
  String msg = except.getLocalizedMessage();
  int i = msg.indexOf("\n");
  if (i >= 0) {
    msg = msg.substring(0, i);
  }
  doc.attribute("message", msg.substring(msg.indexOf(":") + 1).trim());
  doc.endTag();
}

Source File: DfsServlet.java From big-c with Apache License 2.0

6 votes

/** Write the object to XML format */
protected void writeXml(Exception except, String path, XMLOutputter doc)
    throws IOException {
  doc.startTag(RemoteException.class.getSimpleName());
  doc.attribute("path", path);
  if (except instanceof RemoteException) {
    doc.attribute("class", ((RemoteException) except).getClassName());
  } else {
    doc.attribute("class", except.getClass().getName());
  }
  String msg = except.getLocalizedMessage();
  int i = msg.indexOf("\n");
  if (i >= 0) {
    msg = msg.substring(0, i);
  }
  doc.attribute("message", msg.substring(msg.indexOf(":") + 1).trim());
  doc.endTag();
}

Source File: FileChecksumServlets.java From big-c with Apache License 2.0

6 votes

@Override
public void doGet(HttpServletRequest request, HttpServletResponse response
    ) throws ServletException, IOException {
  final PrintWriter out = response.getWriter();
  final String path = ServletUtil.getDecodedPath(request, "/getFileChecksum");
  final XMLOutputter xml = new XMLOutputter(out, "UTF-8");
  xml.declaration();

  final ServletContext context = getServletContext();
  final DataNode datanode = (DataNode) context.getAttribute("datanode");
  final Configuration conf = 
    new HdfsConfiguration(datanode.getConf());
  
  try {
    final DFSClient dfs = DatanodeJspHelper.getDFSClient(request, 
        datanode, conf, getUGI(request, conf));
    final MD5MD5CRC32FileChecksum checksum = dfs.getFileChecksum(path, Long.MAX_VALUE);
    MD5MD5CRC32FileChecksum.write(xml, checksum);
  } catch(IOException ioe) {
    writeXml(ioe, path, xml);
  } catch (InterruptedException e) {
    writeXml(e, path, xml);
  }
  xml.endDocument();
}

Source File: FileChecksumServlets.java From hadoop with Apache License 2.0

6 votes

@Override
public void doGet(HttpServletRequest request, HttpServletResponse response
    ) throws ServletException, IOException {
  final PrintWriter out = response.getWriter();
  final String path = ServletUtil.getDecodedPath(request, "/getFileChecksum");
  final XMLOutputter xml = new XMLOutputter(out, "UTF-8");
  xml.declaration();

  final ServletContext context = getServletContext();
  final DataNode datanode = (DataNode) context.getAttribute("datanode");
  final Configuration conf = 
    new HdfsConfiguration(datanode.getConf());
  
  try {
    final DFSClient dfs = DatanodeJspHelper.getDFSClient(request, 
        datanode, conf, getUGI(request, conf));
    final MD5MD5CRC32FileChecksum checksum = dfs.getFileChecksum(path, Long.MAX_VALUE);
    MD5MD5CRC32FileChecksum.write(xml, checksum);
  } catch(IOException ioe) {
    writeXml(ioe, path, xml);
  } catch (InterruptedException e) {
    writeXml(e, path, xml);
  }
  xml.endDocument();
}

Source File: ClusterJspHelper.java From big-c with Apache License 2.0

5 votes

/**
 * Generate a XML block as such, <item label=key value=value/>
 */
private static void toXmlItemBlock(XMLOutputter doc, String key, String value)
    throws IOException {
  doc.startTag("item");
  doc.attribute("label", key);
  doc.attribute("value", value);
  doc.endTag();
}

Source File: RemoteException.java From hadoop-gpu with Apache License 2.0

5 votes

/** Write the object to XML format */
public void writeXml(String path, XMLOutputter doc) throws IOException {
  doc.startTag(RemoteException.class.getSimpleName());
  doc.attribute("path", path);
  doc.attribute("class", getClassName());
  String msg = getLocalizedMessage();
  int i = msg.indexOf("\n");
  if (i >= 0) {
    msg = msg.substring(0, i);
  }
  doc.attribute("message", msg.substring(msg.indexOf(":") + 1).trim());
  doc.endTag();
}

Source File: MD5MD5CRC32FileChecksum.java From hadoop-gpu with Apache License 2.0

5 votes

/** Write that object to xml output. */
public static void write(XMLOutputter xml, MD5MD5CRC32FileChecksum that
    ) throws IOException {
  xml.startTag(MD5MD5CRC32FileChecksum.class.getName());
  if (that != null) {
    xml.attribute("bytesPerCRC", "" + that.bytesPerCRC);
    xml.attribute("crcPerBlock", "" + that.crcPerBlock);
    xml.attribute("md5", "" + that.md5);
  }
  xml.endTag();
}

Source File: FileChecksumServlets.java From RDFS with Apache License 2.0

5 votes

/** {@inheritDoc} */
public void doGet(HttpServletRequest request, HttpServletResponse response
    ) throws ServletException, IOException {
  final UnixUserGroupInformation ugi = getUGI(request);
  final PrintWriter out = response.getWriter();
  final String filename = getFilename(request, response);
  final XMLOutputter xml = new XMLOutputter(out, "UTF-8");
  xml.declaration();

  Configuration daemonConf = (Configuration) getServletContext()
    .getAttribute(HttpServer.CONF_CONTEXT_ATTRIBUTE);
  final Configuration conf = (daemonConf == null) ? new Configuration()
    : new Configuration(daemonConf);
  final int socketTimeout = conf.getInt("dfs.socket.timeout", HdfsConstants.READ_TIMEOUT);
  final SocketFactory socketFactory = NetUtils.getSocketFactory(conf, ClientProtocol.class);
  UnixUserGroupInformation.saveToConf(conf,
      UnixUserGroupInformation.UGI_PROPERTY_NAME, ugi);
  final ProtocolProxy<ClientProtocol> nnproxy =
    DFSClient.createRPCNamenode(conf);

  try {
    final MD5MD5CRC32FileChecksum checksum = DFSClient.getFileChecksum(
        DataTransferProtocol.DATA_TRANSFER_VERSION,
        filename, nnproxy.getProxy(), nnproxy, socketFactory, socketTimeout);
    MD5MD5CRC32FileChecksum.write(xml, checksum);
  } catch(IOException ioe) {
    new RemoteException(ioe.getClass().getName(), ioe.getMessage()
        ).writeXml(filename, xml);
  }
  xml.endDocument();
}

Source File: RemoteException.java From RDFS with Apache License 2.0

5 votes

/** Write the object to XML format */
public void writeXml(String path, XMLOutputter doc) throws IOException {
  doc.startTag(RemoteException.class.getSimpleName());
  doc.attribute("path", path);
  doc.attribute("class", getClassName());
  String msg = getLocalizedMessage();
  int i = msg.indexOf("\n");
  if (i >= 0) {
    msg = msg.substring(0, i);
  }
  doc.attribute("message", msg.substring(msg.indexOf(":") + 1).trim());
  doc.endTag();
}

Source File: MD5MD5CRC32FileChecksum.java From RDFS with Apache License 2.0

5 votes

/** Write that object to xml output. */
public static void write(XMLOutputter xml, MD5MD5CRC32FileChecksum that
    ) throws IOException {
  xml.startTag(MD5MD5CRC32FileChecksum.class.getName());
  if (that != null) {
    xml.attribute("bytesPerCRC", "" + that.bytesPerCRC);
    xml.attribute("crcPerBlock", "" + that.crcPerBlock);
    xml.attribute("md5", "" + that.md5);
  }
  xml.endTag();
}

Source File: MD5MD5CRC32FileChecksum.java From big-c with Apache License 2.0

5 votes

/** Write that object to xml output. */
public static void write(XMLOutputter xml, MD5MD5CRC32FileChecksum that
    ) throws IOException {
  xml.startTag(MD5MD5CRC32FileChecksum.class.getName());
  if (that != null) {
    xml.attribute("bytesPerCRC", "" + that.bytesPerCRC);
    xml.attribute("crcPerBlock", "" + that.crcPerBlock);
    xml.attribute("crcType", ""+ that.getCrcType().name());
    xml.attribute("md5", "" + that.md5);
  }
  xml.endTag();
}

Source File: ClusterJspHelper.java From big-c with Apache License 2.0

5 votes

/**
 * create XML block from general exception.
 */
private static void createGeneralException(XMLOutputter doc,
    String clusterid, String eMsg) throws IOException {
  doc.startTag("cluster");
  doc.attribute("clusterId", clusterid);
  doc.startTag("message");
  doc.startTag("item");
  doc.attribute("msg", eMsg);
  doc.endTag(); // item
  doc.endTag(); // message
  doc.endTag(); // cluster
}

Source File: ClusterJspHelper.java From big-c with Apache License 2.0

5 votes

/**
 * create the XML for exceptions that we encountered when connecting to
 * namenode.
 */
private static void createNamenodeExceptionMsg(XMLOutputter doc,
    Map<String, Exception> exceptionMsg) throws IOException {
  if (exceptionMsg.size() > 0) {
    doc.startTag("unreportedNamenodes");
    for (Map.Entry<String, Exception> m : exceptionMsg.entrySet()) {
      doc.startTag("node");
      doc.attribute("name", m.getKey());
      doc.attribute("exception",
          StringUtils.stringifyException(m.getValue()));
      doc.endTag();// node
    }
    doc.endTag(); // unreportedNamnodes
  }
}

Source File: ClusterJspHelper.java From big-c with Apache License 2.0

5 votes

/**
 * Generate a XML block as such, <item label="Node" value="hostname"
 * link="http://hostname:50070" />
 */
private static void toXmlItemBlockWithLink(XMLOutputter doc, String value,
    URL url, String label) throws IOException {
  doc.startTag("item");
  doc.attribute("label", label);
  doc.attribute("value", value);
  doc.attribute("link", url.toString());
  doc.endTag(); // item
}

Source File: MD5MD5CRC32FileChecksum.java From hadoop with Apache License 2.0

5 votes

/** Write that object to xml output. */
public static void write(XMLOutputter xml, MD5MD5CRC32FileChecksum that
    ) throws IOException {
  xml.startTag(MD5MD5CRC32FileChecksum.class.getName());
  if (that != null) {
    xml.attribute("bytesPerCRC", "" + that.bytesPerCRC);
    xml.attribute("crcPerBlock", "" + that.crcPerBlock);
    xml.attribute("crcType", ""+ that.getCrcType().name());
    xml.attribute("md5", "" + that.md5);
  }
  xml.endTag();
}

Source File: ClusterJspHelper.java From hadoop with Apache License 2.0

5 votes

/**
 * create XML block from general exception.
 */
private static void createGeneralException(XMLOutputter doc,
    String clusterid, String eMsg) throws IOException {
  doc.startTag("cluster");
  doc.attribute("clusterId", clusterid);
  doc.startTag("message");
  doc.startTag("item");
  doc.attribute("msg", eMsg);
  doc.endTag(); // item
  doc.endTag(); // message
  doc.endTag(); // cluster
}

Source File: ClusterJspHelper.java From hadoop with Apache License 2.0

5 votes

/**
 * create the XML for exceptions that we encountered when connecting to
 * namenode.
 */
private static void createNamenodeExceptionMsg(XMLOutputter doc,
    Map<String, Exception> exceptionMsg) throws IOException {
  if (exceptionMsg.size() > 0) {
    doc.startTag("unreportedNamenodes");
    for (Map.Entry<String, Exception> m : exceptionMsg.entrySet()) {
      doc.startTag("node");
      doc.attribute("name", m.getKey());
      doc.attribute("exception",
          StringUtils.stringifyException(m.getValue()));
      doc.endTag();// node
    }
    doc.endTag(); // unreportedNamnodes
  }
}

Source File: ClusterJspHelper.java From hadoop with Apache License 2.0

5 votes

/**
 * Generate a XML block as such, <item label="Node" value="hostname"
 * link="http://hostname:50070" />
 */
private static void toXmlItemBlockWithLink(XMLOutputter doc, String value,
    URL url, String label) throws IOException {
  doc.startTag("item");
  doc.attribute("label", label);
  doc.attribute("value", value);
  doc.attribute("link", url.toString());
  doc.endTag(); // item
}

Source File: ClusterJspHelper.java From hadoop with Apache License 2.0

5 votes

/**
 * Generate a XML block as such, <item label=key value=value/>
 */
private static void toXmlItemBlock(XMLOutputter doc, String key, String value)
    throws IOException {
  doc.startTag("item");
  doc.attribute("label", key);
  doc.attribute("value", value);
  doc.endTag();
}

Source File: ClusterJspHelper.java From big-c with Apache License 2.0

4 votes

/**
 * Generate decommissioning datanode report in XML format
 * 
 * @param doc
 *          , xmloutputter
 * @throws IOException
 */
public void toXML(XMLOutputter doc) throws IOException {
  if (error != null) {
    createGeneralException(doc, clusterid,
        StringUtils.stringifyException(error));
    doc.getWriter().flush();
    return;
  } 
  if (statusMap == null || statusMap.isEmpty()) {
    // none of the namenodes has reported, print exceptions from each nn.
    doc.startTag("cluster");
    createNamenodeExceptionMsg(doc, exceptions);
    doc.endTag();
    doc.getWriter().flush();
    return;
  }
  doc.startTag("cluster");
  doc.attribute("clusterId", clusterid);

  doc.startTag("decommissioningReport");
  countDecommissionDatanodes();
  toXmlItemBlock(doc, DecommissionStates.DECOMMISSIONED.toString(),
      Integer.toString(decommissioned));

  toXmlItemBlock(doc,
      DecommissionStates.DECOMMISSION_INPROGRESS.toString(),
      Integer.toString(decommissioning));

  toXmlItemBlock(doc,
      DecommissionStates.PARTIALLY_DECOMMISSIONED.toString(),
      Integer.toString(partial));

  doc.endTag(); // decommissioningReport

  doc.startTag("datanodes");
  Set<String> dnSet = statusMap.keySet();
  for (String dnhost : dnSet) {
    Map<String, String> nnStatus = statusMap.get(dnhost);
    if (nnStatus == null || nnStatus.isEmpty()) {
      continue;
    }
    String overallStatus = nnStatus.get(OVERALL_STATUS);
    // check if datanode is in decommission states
    if (overallStatus != null
        && (overallStatus.equals(AdminStates.DECOMMISSION_INPROGRESS
            .toString())
            || overallStatus.equals(AdminStates.DECOMMISSIONED.toString())
            || overallStatus
                .equals(DecommissionStates.PARTIALLY_DECOMMISSIONED
                    .toString()) || overallStatus
            .equals(DecommissionStates.UNKNOWN.toString()))) {
      doc.startTag("node");
      // dn
      toXmlItemBlockWithLink(doc, dnhost, new URL("http", dnhost, httpPort,
          ""), "DataNode");

      // overall status first
      toXmlItemBlock(doc, OVERALL_STATUS, overallStatus);

      for (Map.Entry<String, String> m : nnStatus.entrySet()) {
        String nn = m.getKey();
        if (nn.equals(OVERALL_STATUS)) {
          continue;
        }
        // xml
        toXmlItemBlock(doc, nn, nnStatus.get(nn));
      }
      doc.endTag(); // node
    }
  }
  doc.endTag(); // datanodes

  createNamenodeExceptionMsg(doc, exceptions);

  doc.endTag();// cluster
}

Source File: ClusterJspHelper.java From big-c with Apache License 2.0

4 votes

public void toXML(XMLOutputter doc) throws IOException {
  if (error != null) {
    // general exception, only print exception message onto web page.
    createGeneralException(doc, clusterid,
        StringUtils.stringifyException(error));
    doc.getWriter().flush();
    return;
  }
  
  int size = nnList.size();
  long total = 0L, free = 0L, nonDfsUsed = 0l;
  float dfsUsedPercent = 0.0f, dfsRemainingPercent = 0.0f;
  if (size > 0) {
    total = total_sum / size;
    free = free_sum / size;
    nonDfsUsed = nonDfsUsed_sum / size;
    dfsUsedPercent = DFSUtil.getPercentUsed(clusterDfsUsed, total);
    dfsRemainingPercent = DFSUtil.getPercentRemaining(free, total);
  }

  doc.startTag("cluster");
  doc.attribute("clusterId", clusterid);

  doc.startTag("storage");

  toXmlItemBlock(doc, "Total Files And Directories",
      Long.toString(totalFilesAndDirectories));

  toXmlItemBlock(doc, "Configured Capacity", StringUtils.byteDesc(total));

  toXmlItemBlock(doc, "DFS Used", StringUtils.byteDesc(clusterDfsUsed));

  toXmlItemBlock(doc, "Non DFS Used", StringUtils.byteDesc(nonDfsUsed));

  toXmlItemBlock(doc, "DFS Remaining", StringUtils.byteDesc(free));

  // dfsUsedPercent
  toXmlItemBlock(doc, "DFS Used%", DFSUtil.percent2String(dfsUsedPercent));

  // dfsRemainingPercent
  toXmlItemBlock(doc, "DFS Remaining%", DFSUtil.percent2String(dfsRemainingPercent));

  doc.endTag(); // storage

  doc.startTag("namenodes");
  // number of namenodes
  toXmlItemBlock(doc, "NamenodesCount", Integer.toString(size));

  for (NamenodeStatus nn : nnList) {
    doc.startTag("node");
    toXmlItemBlockWithLink(doc, nn.host, nn.httpAddress, "NameNode");
    toXmlItemBlock(doc, "Blockpool Used",
        StringUtils.byteDesc(nn.bpUsed));
    toXmlItemBlock(doc, "Blockpool Used%",
        DFSUtil.percent2String(DFSUtil.getPercentUsed(nn.bpUsed, total)));
    toXmlItemBlock(doc, "Files And Directories",
        Long.toString(nn.filesAndDirectories));
    toXmlItemBlock(doc, "Blocks", Long.toString(nn.blocksCount));
    toXmlItemBlock(doc, "Missing Blocks",
        Long.toString(nn.missingBlocksCount));
    toXmlItemBlockWithLink(doc, nn.liveDatanodeCount + " ("
        + nn.liveDecomCount + ")", new URL(nn.httpAddress,
        "/dfsnodelist.jsp?whatNodes=LIVE"),
        "Live Datanode (Decommissioned)");
    toXmlItemBlockWithLink(doc, nn.deadDatanodeCount + " ("
        + nn.deadDecomCount + ")", new URL(nn.httpAddress,
        "/dfsnodelist.jsp?whatNodes=DEAD"),
        "Dead Datanode (Decommissioned)");
    toXmlItemBlock(doc, "Software Version", nn.softwareVersion);
    doc.endTag(); // node
  }
  doc.endTag(); // namenodes

  createNamenodeExceptionMsg(doc, nnExceptions);
  doc.endTag(); // cluster
  doc.getWriter().flush();
}

Source File: ContentSummaryServlet.java From big-c with Apache License 2.0

4 votes

@Override
public void doGet(final HttpServletRequest request,
    final HttpServletResponse response) throws ServletException, IOException {
  final Configuration conf = 
    (Configuration) getServletContext().getAttribute(JspHelper.CURRENT_CONF);
  final UserGroupInformation ugi = getUGI(request, conf);
  try {
    ugi.doAs(new PrivilegedExceptionAction<Void>() {
      @Override
      public Void run() throws Exception {
        final String path = ServletUtil.getDecodedPath(request, "/contentSummary");
        final PrintWriter out = response.getWriter();
        final XMLOutputter xml = new XMLOutputter(out, "UTF-8");
        xml.declaration();
        try {
          //get content summary
          final ClientProtocol nnproxy = createNameNodeProxy();
          final ContentSummary cs = nnproxy.getContentSummary(path);

          //write xml
          xml.startTag(ContentSummary.class.getName());
          if (cs != null) {
            xml.attribute("length"        , "" + cs.getLength());
            xml.attribute("fileCount"     , "" + cs.getFileCount());
            xml.attribute("directoryCount", "" + cs.getDirectoryCount());
            xml.attribute("quota"         , "" + cs.getQuota());
            xml.attribute("spaceConsumed" , "" + cs.getSpaceConsumed());
            xml.attribute("spaceQuota"    , "" + cs.getSpaceQuota());
          }
          xml.endTag();
        } catch(IOException ioe) {
          writeXml(ioe, path, xml);
        }
        xml.endDocument();
        return null;
      }
    });
  } catch (InterruptedException e) {
    throw new IOException(e);
  }
}

Source File: ContentSummaryServlet.java From hadoop with Apache License 2.0

4 votes

@Override
public void doGet(final HttpServletRequest request,
    final HttpServletResponse response) throws ServletException, IOException {
  final Configuration conf = 
    (Configuration) getServletContext().getAttribute(JspHelper.CURRENT_CONF);
  final UserGroupInformation ugi = getUGI(request, conf);
  try {
    ugi.doAs(new PrivilegedExceptionAction<Void>() {
      @Override
      public Void run() throws Exception {
        final String path = ServletUtil.getDecodedPath(request, "/contentSummary");
        final PrintWriter out = response.getWriter();
        final XMLOutputter xml = new XMLOutputter(out, "UTF-8");
        xml.declaration();
        try {
          //get content summary
          final ClientProtocol nnproxy = createNameNodeProxy();
          final ContentSummary cs = nnproxy.getContentSummary(path);

          //write xml
          xml.startTag(ContentSummary.class.getName());
          if (cs != null) {
            xml.attribute("length"        , "" + cs.getLength());
            xml.attribute("fileCount"     , "" + cs.getFileCount());
            xml.attribute("directoryCount", "" + cs.getDirectoryCount());
            xml.attribute("quota"         , "" + cs.getQuota());
            xml.attribute("spaceConsumed" , "" + cs.getSpaceConsumed());
            xml.attribute("spaceQuota"    , "" + cs.getSpaceQuota());
          }
          xml.endTag();
        } catch(IOException ioe) {
          writeXml(ioe, path, xml);
        }
        xml.endDocument();
        return null;
      }
    });
  } catch (InterruptedException e) {
    throw new IOException(e);
  }
}

Source File: ClusterJspHelper.java From hadoop with Apache License 2.0

4 votes

/**
 * Generate decommissioning datanode report in XML format
 * 
 * @param doc
 *          , xmloutputter
 * @throws IOException
 */
public void toXML(XMLOutputter doc) throws IOException {
  if (error != null) {
    createGeneralException(doc, clusterid,
        StringUtils.stringifyException(error));
    doc.getWriter().flush();
    return;
  } 
  if (statusMap == null || statusMap.isEmpty()) {
    // none of the namenodes has reported, print exceptions from each nn.
    doc.startTag("cluster");
    createNamenodeExceptionMsg(doc, exceptions);
    doc.endTag();
    doc.getWriter().flush();
    return;
  }
  doc.startTag("cluster");
  doc.attribute("clusterId", clusterid);

  doc.startTag("decommissioningReport");
  countDecommissionDatanodes();
  toXmlItemBlock(doc, DecommissionStates.DECOMMISSIONED.toString(),
      Integer.toString(decommissioned));

  toXmlItemBlock(doc,
      DecommissionStates.DECOMMISSION_INPROGRESS.toString(),
      Integer.toString(decommissioning));

  toXmlItemBlock(doc,
      DecommissionStates.PARTIALLY_DECOMMISSIONED.toString(),
      Integer.toString(partial));

  doc.endTag(); // decommissioningReport

  doc.startTag("datanodes");
  Set<String> dnSet = statusMap.keySet();
  for (String dnhost : dnSet) {
    Map<String, String> nnStatus = statusMap.get(dnhost);
    if (nnStatus == null || nnStatus.isEmpty()) {
      continue;
    }
    String overallStatus = nnStatus.get(OVERALL_STATUS);
    // check if datanode is in decommission states
    if (overallStatus != null
        && (overallStatus.equals(AdminStates.DECOMMISSION_INPROGRESS
            .toString())
            || overallStatus.equals(AdminStates.DECOMMISSIONED.toString())
            || overallStatus
                .equals(DecommissionStates.PARTIALLY_DECOMMISSIONED
                    .toString()) || overallStatus
            .equals(DecommissionStates.UNKNOWN.toString()))) {
      doc.startTag("node");
      // dn
      toXmlItemBlockWithLink(doc, dnhost, new URL("http", dnhost, httpPort,
          ""), "DataNode");

      // overall status first
      toXmlItemBlock(doc, OVERALL_STATUS, overallStatus);

      for (Map.Entry<String, String> m : nnStatus.entrySet()) {
        String nn = m.getKey();
        if (nn.equals(OVERALL_STATUS)) {
          continue;
        }
        // xml
        toXmlItemBlock(doc, nn, nnStatus.get(nn));
      }
      doc.endTag(); // node
    }
  }
  doc.endTag(); // datanodes

  createNamenodeExceptionMsg(doc, exceptions);

  doc.endTag();// cluster
}

Source File: ClusterJspHelper.java From hadoop with Apache License 2.0

4 votes

public void toXML(XMLOutputter doc) throws IOException {
  if (error != null) {
    // general exception, only print exception message onto web page.
    createGeneralException(doc, clusterid,
        StringUtils.stringifyException(error));
    doc.getWriter().flush();
    return;
  }
  
  int size = nnList.size();
  long total = 0L, free = 0L, nonDfsUsed = 0l;
  float dfsUsedPercent = 0.0f, dfsRemainingPercent = 0.0f;
  if (size > 0) {
    total = total_sum / size;
    free = free_sum / size;
    nonDfsUsed = nonDfsUsed_sum / size;
    dfsUsedPercent = DFSUtil.getPercentUsed(clusterDfsUsed, total);
    dfsRemainingPercent = DFSUtil.getPercentRemaining(free, total);
  }

  doc.startTag("cluster");
  doc.attribute("clusterId", clusterid);

  doc.startTag("storage");

  toXmlItemBlock(doc, "Total Files And Directories",
      Long.toString(totalFilesAndDirectories));

  toXmlItemBlock(doc, "Configured Capacity", StringUtils.byteDesc(total));

  toXmlItemBlock(doc, "DFS Used", StringUtils.byteDesc(clusterDfsUsed));

  toXmlItemBlock(doc, "Non DFS Used", StringUtils.byteDesc(nonDfsUsed));

  toXmlItemBlock(doc, "DFS Remaining", StringUtils.byteDesc(free));

  // dfsUsedPercent
  toXmlItemBlock(doc, "DFS Used%", DFSUtil.percent2String(dfsUsedPercent));

  // dfsRemainingPercent
  toXmlItemBlock(doc, "DFS Remaining%", DFSUtil.percent2String(dfsRemainingPercent));

  doc.endTag(); // storage

  doc.startTag("namenodes");
  // number of namenodes
  toXmlItemBlock(doc, "NamenodesCount", Integer.toString(size));

  for (NamenodeStatus nn : nnList) {
    doc.startTag("node");
    toXmlItemBlockWithLink(doc, nn.host, nn.httpAddress, "NameNode");
    toXmlItemBlock(doc, "Blockpool Used",
        StringUtils.byteDesc(nn.bpUsed));
    toXmlItemBlock(doc, "Blockpool Used%",
        DFSUtil.percent2String(DFSUtil.getPercentUsed(nn.bpUsed, total)));
    toXmlItemBlock(doc, "Files And Directories",
        Long.toString(nn.filesAndDirectories));
    toXmlItemBlock(doc, "Blocks", Long.toString(nn.blocksCount));
    toXmlItemBlock(doc, "Missing Blocks",
        Long.toString(nn.missingBlocksCount));
    toXmlItemBlockWithLink(doc, nn.liveDatanodeCount + " ("
        + nn.liveDecomCount + ")", new URL(nn.httpAddress,
        "/dfsnodelist.jsp?whatNodes=LIVE"),
        "Live Datanode (Decommissioned)");
    toXmlItemBlockWithLink(doc, nn.deadDatanodeCount + " ("
        + nn.deadDecomCount + ")", new URL(nn.httpAddress,
        "/dfsnodelist.jsp?whatNodes=DEAD"),
        "Dead Datanode (Decommissioned)");
    toXmlItemBlock(doc, "Software Version", nn.softwareVersion);
    doc.endTag(); // node
  }
  doc.endTag(); // namenodes

  createNamenodeExceptionMsg(doc, nnExceptions);
  doc.endTag(); // cluster
  doc.getWriter().flush();
}

org.znerd.xmlenc.XMLOutputter Java Examples