[120] | 1 | package org.apache.hadoop.hdfs.server.datanode; |
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| 2 | |
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| 3 | import javax.servlet.*; |
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| 4 | import javax.servlet.http.*; |
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| 5 | import javax.servlet.jsp.*; |
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| 6 | import javax.servlet.*; |
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| 7 | import javax.servlet.http.*; |
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| 8 | import java.io.*; |
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| 9 | import java.util.*; |
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| 10 | import java.net.*; |
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| 11 | import org.apache.hadoop.fs.*; |
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| 12 | import org.apache.hadoop.hdfs.*; |
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| 13 | import org.apache.hadoop.hdfs.server.namenode.*; |
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| 14 | import org.apache.hadoop.hdfs.server.datanode.*; |
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| 15 | import org.apache.hadoop.hdfs.protocol.*; |
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| 16 | import org.apache.hadoop.io.*; |
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| 17 | import org.apache.hadoop.conf.*; |
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| 18 | import org.apache.hadoop.net.DNS; |
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| 19 | import org.apache.hadoop.util.*; |
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| 20 | import java.text.DateFormat; |
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| 21 | |
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| 22 | public final class browseDirectory_jsp extends org.apache.jasper.runtime.HttpJspBase |
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| 23 | implements org.apache.jasper.runtime.JspSourceDependent { |
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| 24 | |
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| 25 | |
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| 26 | static JspHelper jspHelper = new JspHelper(); |
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| 27 | |
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| 28 | public void generateDirectoryStructure( JspWriter out, |
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| 29 | HttpServletRequest req, |
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| 30 | HttpServletResponse resp) |
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| 31 | throws IOException { |
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| 32 | String dir = req.getParameter("dir"); |
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| 33 | if (dir == null || dir.length() == 0) { |
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| 34 | out.print("Invalid input"); |
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| 35 | return; |
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| 36 | } |
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| 37 | |
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| 38 | String namenodeInfoPortStr = req.getParameter("namenodeInfoPort"); |
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| 39 | int namenodeInfoPort = -1; |
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| 40 | if (namenodeInfoPortStr != null) |
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| 41 | namenodeInfoPort = Integer.parseInt(namenodeInfoPortStr); |
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| 42 | |
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| 43 | DFSClient dfs = new DFSClient(jspHelper.nameNodeAddr, jspHelper.conf); |
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| 44 | String target = dir; |
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| 45 | if (!dfs.exists(target)) { |
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| 46 | out.print("<h3>File or directory : " + target + " does not exist</h3>"); |
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| 47 | JspHelper.printGotoForm(out, namenodeInfoPort, target); |
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| 48 | } |
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| 49 | else { |
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| 50 | if( !dfs.isDirectory(target) ) { // a file |
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| 51 | List<LocatedBlock> blocks = |
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| 52 | dfs.namenode.getBlockLocations(dir, 0, 1).getLocatedBlocks(); |
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| 53 | |
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| 54 | LocatedBlock firstBlock = null; |
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| 55 | DatanodeInfo [] locations = null; |
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| 56 | if (blocks.size() > 0) { |
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| 57 | firstBlock = blocks.get(0); |
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| 58 | locations = firstBlock.getLocations(); |
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| 59 | } |
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| 60 | if (locations == null || locations.length == 0) { |
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| 61 | out.print("Empty file"); |
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| 62 | } else { |
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| 63 | DatanodeInfo chosenNode = jspHelper.bestNode(firstBlock); |
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| 64 | String fqdn = InetAddress.getByName(chosenNode.getHost()). |
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| 65 | getCanonicalHostName(); |
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| 66 | String datanodeAddr = chosenNode.getName(); |
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| 67 | int datanodePort = Integer.parseInt( |
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| 68 | datanodeAddr.substring( |
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| 69 | datanodeAddr.indexOf(':') + 1, |
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| 70 | datanodeAddr.length())); |
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| 71 | String redirectLocation = "http://"+fqdn+":" + |
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| 72 | chosenNode.getInfoPort() + |
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| 73 | "/browseBlock.jsp?blockId=" + |
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| 74 | firstBlock.getBlock().getBlockId() + |
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| 75 | "&blockSize=" + firstBlock.getBlock().getNumBytes() + |
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| 76 | "&genstamp=" + firstBlock.getBlock().getGenerationStamp() + |
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| 77 | "&filename=" + URLEncoder.encode(dir, "UTF-8") + |
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| 78 | "&datanodePort=" + datanodePort + |
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| 79 | "&namenodeInfoPort=" + namenodeInfoPort; |
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| 80 | resp.sendRedirect(redirectLocation); |
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| 81 | } |
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| 82 | return; |
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| 83 | } |
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| 84 | // directory |
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| 85 | FileStatus[] files = dfs.listPaths(target); |
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| 86 | //generate a table and dump the info |
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| 87 | String [] headings = { "Name", "Type", "Size", "Replication", |
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| 88 | "Block Size", "Modification Time", |
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| 89 | "Permission", "Owner", "Group" }; |
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| 90 | out.print("<h3>Contents of directory "); |
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| 91 | JspHelper.printPathWithLinks(dir, out, namenodeInfoPort); |
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| 92 | out.print("</h3><hr>"); |
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| 93 | JspHelper.printGotoForm(out, namenodeInfoPort, dir); |
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| 94 | out.print("<hr>"); |
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| 95 | |
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| 96 | File f = new File(dir); |
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| 97 | String parent; |
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| 98 | if ((parent = f.getParent()) != null) |
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| 99 | out.print("<a href=\"" + req.getRequestURL() + "?dir=" + parent + |
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| 100 | "&namenodeInfoPort=" + namenodeInfoPort + |
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| 101 | "\">Go to parent directory</a><br>"); |
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| 102 | |
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| 103 | if (files == null || files.length == 0) { |
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| 104 | out.print("Empty directory"); |
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| 105 | } |
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| 106 | else { |
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| 107 | jspHelper.addTableHeader(out); |
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| 108 | int row=0; |
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| 109 | jspHelper.addTableRow(out, headings, row++); |
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| 110 | String cols [] = new String[headings.length]; |
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| 111 | for (int i = 0; i < files.length; i++) { |
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| 112 | //Get the location of the first block of the file |
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| 113 | if (files[i].getPath().toString().endsWith(".crc")) continue; |
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| 114 | if (!files[i].isDir()) { |
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| 115 | cols[1] = "file"; |
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| 116 | cols[2] = StringUtils.byteDesc(files[i].getLen()); |
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| 117 | cols[3] = Short.toString(files[i].getReplication()); |
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| 118 | cols[4] = StringUtils.byteDesc(files[i].getBlockSize()); |
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| 119 | } |
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| 120 | else { |
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| 121 | cols[1] = "dir"; |
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| 122 | cols[2] = ""; |
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| 123 | cols[3] = ""; |
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| 124 | cols[4] = ""; |
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| 125 | } |
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| 126 | String datanodeUrl = req.getRequestURL()+"?dir="+ |
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| 127 | URLEncoder.encode(files[i].getPath().toString(), "UTF-8") + |
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| 128 | "&namenodeInfoPort=" + namenodeInfoPort; |
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| 129 | cols[0] = "<a href=\""+datanodeUrl+"\">"+files[i].getPath().getName()+"</a>"; |
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| 130 | cols[5] = FsShell.dateForm.format(new Date((files[i].getModificationTime()))); |
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| 131 | cols[6] = files[i].getPermission().toString(); |
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| 132 | cols[7] = files[i].getOwner(); |
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| 133 | cols[8] = files[i].getGroup(); |
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| 134 | jspHelper.addTableRow(out, cols, row++); |
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| 135 | } |
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| 136 | jspHelper.addTableFooter(out); |
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| 137 | } |
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| 138 | } |
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| 139 | String namenodeHost = jspHelper.nameNodeAddr.getHostName(); |
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| 140 | out.print("<br><a href=\"http://" + |
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| 141 | InetAddress.getByName(namenodeHost).getCanonicalHostName() + ":" + |
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| 142 | namenodeInfoPort + "/dfshealth.jsp\">Go back to DFS home</a>"); |
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| 143 | dfs.close(); |
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| 144 | } |
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| 145 | |
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| 146 | |
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| 147 | private static java.util.List _jspx_dependants; |
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| 148 | |
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| 149 | public Object getDependants() { |
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| 150 | return _jspx_dependants; |
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| 151 | } |
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| 152 | |
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| 153 | public void _jspService(HttpServletRequest request, HttpServletResponse response) |
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| 154 | throws java.io.IOException, ServletException { |
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| 155 | |
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| 156 | JspFactory _jspxFactory = null; |
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| 157 | PageContext pageContext = null; |
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| 158 | HttpSession session = null; |
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| 159 | ServletContext application = null; |
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| 160 | ServletConfig config = null; |
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| 161 | JspWriter out = null; |
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| 162 | Object page = this; |
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| 163 | JspWriter _jspx_out = null; |
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| 164 | PageContext _jspx_page_context = null; |
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| 165 | |
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| 166 | |
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| 167 | try { |
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| 168 | _jspxFactory = JspFactory.getDefaultFactory(); |
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| 169 | response.setContentType("text/html; charset=UTF-8"); |
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| 170 | pageContext = _jspxFactory.getPageContext(this, request, response, |
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| 171 | null, true, 8192, true); |
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| 172 | _jspx_page_context = pageContext; |
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| 173 | application = pageContext.getServletContext(); |
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| 174 | config = pageContext.getServletConfig(); |
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| 175 | session = pageContext.getSession(); |
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| 176 | out = pageContext.getOut(); |
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| 177 | _jspx_out = out; |
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| 178 | |
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| 179 | out.write('\n'); |
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| 180 | out.write("\n\n<html>\n<head>\n<style type=text/css>\n<!--\nbody \n {\n font-face:sanserif;\n }\n-->\n</style>\n"); |
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| 181 | JspHelper.createTitle(out, request, request.getParameter("dir")); |
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| 182 | out.write("\n</head>\n\n<body onload=\"document.goto.dir.focus()\">\n"); |
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| 183 | |
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| 184 | try { |
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| 185 | generateDirectoryStructure(out,request,response); |
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| 186 | } |
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| 187 | catch(IOException ioe) { |
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| 188 | String msg = ioe.getLocalizedMessage(); |
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| 189 | int i = msg.indexOf("\n"); |
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| 190 | if (i >= 0) { |
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| 191 | msg = msg.substring(0, i); |
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| 192 | } |
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| 193 | out.print("<h3>" + msg + "</h3>"); |
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| 194 | } |
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| 195 | |
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| 196 | out.write("\n<hr>\n\n<h2>Local logs</h2>\n<a href=\"/logs/\">Log</a> directory\n\n"); |
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| 197 | |
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| 198 | out.println(ServletUtil.htmlFooter()); |
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| 199 | |
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| 200 | out.write('\n'); |
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| 201 | } catch (Throwable t) { |
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| 202 | if (!(t instanceof SkipPageException)){ |
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| 203 | out = _jspx_out; |
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| 204 | if (out != null && out.getBufferSize() != 0) |
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| 205 | out.clearBuffer(); |
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| 206 | if (_jspx_page_context != null) _jspx_page_context.handlePageException(t); |
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| 207 | } |
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| 208 | } finally { |
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| 209 | if (_jspxFactory != null) _jspxFactory.releasePageContext(_jspx_page_context); |
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| 210 | } |
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| 211 | } |
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| 212 | } |
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