Package org.apache.hadoop.io

Examples of org.apache.hadoop.io.UTF8.readFields()

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          Call call = (Call)calls.remove(new Integer(id));
          boolean isError = in.readBoolean();     // read if error
          if (isError) {
            UTF8 utf8 = new UTF8();
            utf8.readFields(in);                  // read error string
            call.setResult(null, utf8.toString());
          } else {
            Writable value = makeValue();
            try {
              readingCall = call;
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            UTF8 name = new UTF8();
            ArrayWritable aw = null;
            Writable writables[];
            // version 0 does not support per file replication
            if (logVersion >= 0)
              name.readFields(in);  // read name only
            else {  // other versions do
              // get name and replication
              aw = new ArrayWritable(UTF8.class);
              aw.readFields(in);
              writables = aw.get();
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          }
          case OP_SET_REPLICATION: {
            UTF8 src = new UTF8();
            UTF8 repl = new UTF8();
            src.readFields(in);
            repl.readFields(in);
            replication = adjustReplication(fromLogReplication(repl));
            fsDir.unprotectedSetReplication(src.toString(),
                                            replication,
                                            null);
            break;
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          }
          case OP_RENAME: {
            UTF8 src = new UTF8();
            UTF8 dst = new UTF8();
            src.readFields(in);
            dst.readFields(in);
            fsDir.unprotectedRenameTo(src, dst);
            break;
          }
          case OP_DELETE: {
            UTF8 src = new UTF8();
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            fsDir.unprotectedRenameTo(src, dst);
            break;
          }
          case OP_DELETE: {
            UTF8 src = new UTF8();
            src.readFields(in);
            fsDir.unprotectedDelete(src);
            break;
          }
          case OP_MKDIR: {
            UTF8 src = new UTF8();
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            fsDir.unprotectedDelete(src);
            break;
          }
          case OP_MKDIR: {
            UTF8 src = new UTF8();
            src.readFields(in);
            fsDir.unprotectedMkdir(src.toString());
            break;
          }
          case OP_DATANODE_ADD: {
            if (logVersion > -3)
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      // read file info
      short replication = FSNamesystem.getFSNamesystem().getDefaultReplication();
      for (int i = 0; i < numFiles; i++) {
        UTF8 name = new UTF8();
        name.readFields(in);
        // version 0 does not support per file replication
        if (!(imgVersion >= 0)) {
          replication = in.readShort(); // other versions do
          replication = FSEditLog.adjustReplication(replication);
        }
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        throw new VersionMismatchException(VERSION[3], version);

      if (version < BLOCK_COMPRESS_VERSION) {
        UTF8 className = new UTF8();

        className.readFields(in);
        keyClassName = className.toString(); // key class name

        className.readFields(in);
        valClassName = className.toString(); // val class name
      } else {
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        UTF8 className = new UTF8();

        className.readFields(in);
        keyClassName = className.toString(); // key class name

        className.readFields(in);
        valClassName = className.toString(); // val class name
      } else {
        keyClassName = Text.readString(in);
        valClassName = Text.readString(in);
      }
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            UTF8 name = new UTF8();
            ArrayWritable aw = null;
            Writable writables[];
            // version 0 does not support per file replication
            if (logVersion >= 0)
              name.readFields(in);  // read name only
            else {  // other versions do
              // get name and replication
              aw = new ArrayWritable(UTF8.class);
              aw.readFields(in);
              writables = aw.get();
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