Package org.apache.activemq.util

Examples of org.apache.activemq.util.DataByteArrayInputStream

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    }


    public int checkBatchRecord(DataFileAccessor reader, int offset) throws IOException {
        byte controlRecord[] = new byte[BATCH_CONTROL_RECORD_SIZE];
        DataByteArrayInputStream controlIs = new DataByteArrayInputStream(controlRecord);

        reader.readFully(offset, controlRecord);

        // Assert that it's  a batch record.
        for( int i=0; i < BATCH_CONTROL_RECORD_HEADER.length; i++ ) {
            if( controlIs.readByte() != BATCH_CONTROL_RECORD_HEADER[i] ) {
                return -1;
            }
        }

        int size = controlIs.readInt();
        if( size > MAX_BATCH_SIZE ) {
            return -1;
        }

        if( isChecksum() ) {

            long expectedChecksum = controlIs.readLong();
            if( expectedChecksum == 0 ) {
                // Checksuming was not enabled when the record was stored.
                // we can't validate the record :(
                return size;
            }
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    }

    final int XID_PREFIX_SIZE = 16;
    //+|-,(long)lastAck,(byte)priority,(int)formatid,(short)globalLength....
    private void initFromEncodedBytes() throws IOException {
        DataByteArrayInputStream inputStream = new DataByteArrayInputStream(encodedXidBytes);
        inputStream.skipBytes(10);
        formatId = inputStream.readInt();
        int globalLength = inputStream.readShort();
        globalTransactionId = new byte[globalLength];
        try {
            inputStream.read(globalTransactionId);
            branchQualifier = new byte[inputStream.available()];
            inputStream.read(branchQualifier);
        } catch (IOException fatal) {
            throw new RuntimeException(this + ", failed to decode:", fatal);
        }
    }
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        }
    }

    private void stringFormArj(StringBuffer s, byte[] uid) {
        try {
            DataByteArrayInputStream byteArrayInputStream = new DataByteArrayInputStream(uid);
            s.append(Long.toString(byteArrayInputStream.readLong(), 16));
            s.append(':');
            s.append(Long.toString(byteArrayInputStream.readLong(), 16));
            s.append(':');

            s.append(Integer.toString(byteArrayInputStream.readInt(), 16));
            s.append(':');
            s.append(Integer.toString(byteArrayInputStream.readInt(), 16));
            s.append(':');
            s.append(Integer.toString(byteArrayInputStream.readInt(), 16));

        } catch (Exception ignored) {
            stringFormDefault(s, uid);
        }
    }
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Related Classes of org.apache.activemq.util.DataByteArrayInputStream

  • org.apache.activemq.command.XATransactionId
  • org.apache.activemq.kaha.impl.async.DataManagerFacade
  • org.apache.activemq.kaha.impl.data.StoreDataReader
  • org.apache.activemq.kaha.impl.data.SyncDataFileReader
  • org.apache.activemq.kaha.impl.index.hash.HashIndex
  • org.apache.activemq.kaha.impl.index.StoreIndexReader
  • org.apache.activemq.kaha.impl.index.tree.TreeIndex
  • org.apache.activemq.store.jdbc.JdbcMemoryTransactionStore
  • org.apache.activemq.store.kahadb.AbstractKahaDBStore
  • org.apache.activemq.store.kahadb.disk.journal.Journal
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